Azure IoT / azure_uamqp_c

A small memory footprint AMQP implimentation

Dependents:   iothub_client_sample_amqp remote_monitoring simplesample_amqp

session.c@27:d74f1cea23e1, 2017-06-02 (annotated)

Committer:
AzureIoTClient
Date:
Fri Jun 02 15:53:07 2017 -0700
Revision:
27:d74f1cea23e1
Parent:
25:1101516ee67d
Child:
28:add19eb7defa
1.1.16

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Azure.IoT Build 0:6ae2f7bca550 1 // Copyright (c) Microsoft. All rights reserved.
Azure.IoT Build 0:6ae2f7bca550 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
Azure.IoT Build 0:6ae2f7bca550 3
Azure.IoT Build 0:6ae2f7bca550 4 #include <stdlib.h>
Azure.IoT Build 0:6ae2f7bca550 5 #include <string.h>
AzureIoTClient 21:f9c433d8e6ca 6 #include "azure_c_shared_utility/optimize_size.h"
AzureIoTClient 21:f9c433d8e6ca 7 #include "azure_c_shared_utility/gballoc.h"
AzureIoTClient 27:d74f1cea23e1 8 #include "azure_c_shared_utility/xlogging.h"
Azure.IoT Build 0:6ae2f7bca550 9 #include "azure_uamqp_c/session.h"
Azure.IoT Build 0:6ae2f7bca550 10 #include "azure_uamqp_c/connection.h"
Azure.IoT Build 0:6ae2f7bca550 11
Azure.IoT Build 0:6ae2f7bca550 12 typedef struct LINK_ENDPOINT_INSTANCE_TAG
Azure.IoT Build 0:6ae2f7bca550 13 {
Azure.IoT Build 0:6ae2f7bca550 14 char* name;
Azure.IoT Build 0:6ae2f7bca550 15 handle input_handle;
Azure.IoT Build 0:6ae2f7bca550 16 handle output_handle;
Azure.IoT Build 0:6ae2f7bca550 17 ON_ENDPOINT_FRAME_RECEIVED frame_received_callback;
Azure.IoT Build 0:6ae2f7bca550 18 ON_SESSION_STATE_CHANGED on_session_state_changed;
Azure.IoT Build 0:6ae2f7bca550 19 ON_SESSION_FLOW_ON on_session_flow_on;
Azure.IoT Build 0:6ae2f7bca550 20 void* callback_context;
Azure.IoT Build 0:6ae2f7bca550 21 SESSION_HANDLE session;
Azure.IoT Build 0:6ae2f7bca550 22 } LINK_ENDPOINT_INSTANCE;
Azure.IoT Build 0:6ae2f7bca550 23
Azure.IoT Build 0:6ae2f7bca550 24 typedef struct SESSION_INSTANCE_TAG
Azure.IoT Build 0:6ae2f7bca550 25 {
Azure.IoT Build 0:6ae2f7bca550 26 ON_ENDPOINT_FRAME_RECEIVED frame_received_callback;
Azure.IoT Build 0:6ae2f7bca550 27 void* frame_received_callback_context;
Azure.IoT Build 0:6ae2f7bca550 28 SESSION_STATE session_state;
Azure.IoT Build 0:6ae2f7bca550 29 SESSION_STATE previous_session_state;
Azure.IoT Build 0:6ae2f7bca550 30 CONNECTION_HANDLE connection;
Azure.IoT Build 0:6ae2f7bca550 31 ENDPOINT_HANDLE endpoint;
Azure.IoT Build 0:6ae2f7bca550 32 LINK_ENDPOINT_INSTANCE** link_endpoints;
Azure.IoT Build 0:6ae2f7bca550 33 uint32_t link_endpoint_count;
Azure.IoT Build 0:6ae2f7bca550 34
Azure.IoT Build 0:6ae2f7bca550 35 ON_LINK_ATTACHED on_link_attached;
Azure.IoT Build 0:6ae2f7bca550 36 void* on_link_attached_callback_context;
Azure.IoT Build 0:6ae2f7bca550 37
Azure.IoT Build 0:6ae2f7bca550 38 /* Codes_SRS_SESSION_01_016: [next-outgoing-id The next-outgoing-id is the transfer-id to assign to the next transfer frame.] */
Azure.IoT Build 0:6ae2f7bca550 39 transfer_number next_outgoing_id;
Azure.IoT Build 0:6ae2f7bca550 40 transfer_number next_incoming_id;
Azure.IoT Build 0:6ae2f7bca550 41 uint32_t desired_incoming_window;
Azure.IoT Build 0:6ae2f7bca550 42 uint32_t incoming_window;
Azure.IoT Build 0:6ae2f7bca550 43 uint32_t outgoing_window;
Azure.IoT Build 0:6ae2f7bca550 44 handle handle_max;
Azure.IoT Build 0:6ae2f7bca550 45 uint32_t remote_incoming_window;
Azure.IoT Build 0:6ae2f7bca550 46 uint32_t remote_outgoing_window;
AzureIoTClient 6:641a9672db08 47 int is_underlying_connection_open : 1;
Azure.IoT Build 0:6ae2f7bca550 48 } SESSION_INSTANCE;
Azure.IoT Build 0:6ae2f7bca550 49
AzureIoTClient 6:641a9672db08 50 #define UNDERLYING_CONNECTION_NOT_OPEN 0
AzureIoTClient 6:641a9672db08 51 #define UNDERLYING_CONNECTION_OPEN -1
AzureIoTClient 6:641a9672db08 52
Azure.IoT Build 0:6ae2f7bca550 53 static void session_set_state(SESSION_INSTANCE* session_instance, SESSION_STATE session_state)
Azure.IoT Build 0:6ae2f7bca550 54 {
Azure.IoT Build 0:6ae2f7bca550 55 uint64_t i;
Azure.IoT Build 0:6ae2f7bca550 56
Azure.IoT Build 0:6ae2f7bca550 57 session_instance->previous_session_state = session_instance->session_state;
Azure.IoT Build 0:6ae2f7bca550 58 session_instance->session_state = session_state;
Azure.IoT Build 0:6ae2f7bca550 59
Azure.IoT Build 0:6ae2f7bca550 60 for (i = 0; i < session_instance->link_endpoint_count; i++)
Azure.IoT Build 0:6ae2f7bca550 61 {
Azure.IoT Build 0:6ae2f7bca550 62 if (session_instance->link_endpoints[i]->on_session_state_changed != NULL)
Azure.IoT Build 0:6ae2f7bca550 63 {
Azure.IoT Build 0:6ae2f7bca550 64 session_instance->link_endpoints[i]->on_session_state_changed(session_instance->link_endpoints[i]->callback_context, session_state, session_instance->previous_session_state);
Azure.IoT Build 0:6ae2f7bca550 65 }
Azure.IoT Build 0:6ae2f7bca550 66 }
Azure.IoT Build 0:6ae2f7bca550 67 }
Azure.IoT Build 0:6ae2f7bca550 68
Azure.IoT Build 0:6ae2f7bca550 69 static int send_end_frame(SESSION_INSTANCE* session_instance, ERROR_HANDLE error_handle)
Azure.IoT Build 0:6ae2f7bca550 70 {
Azure.IoT Build 0:6ae2f7bca550 71 int result;
Azure.IoT Build 0:6ae2f7bca550 72 END_HANDLE end_performative;
Azure.IoT Build 0:6ae2f7bca550 73
Azure.IoT Build 0:6ae2f7bca550 74 end_performative = end_create();
Azure.IoT Build 0:6ae2f7bca550 75 if (end_performative == NULL)
Azure.IoT Build 0:6ae2f7bca550 76 {
AzureIoTClient 19:000ab4e6a2c1 77 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 78 }
Azure.IoT Build 0:6ae2f7bca550 79 else
Azure.IoT Build 0:6ae2f7bca550 80 {
Azure.IoT Build 0:6ae2f7bca550 81 if ((error_handle != NULL) &&
Azure.IoT Build 0:6ae2f7bca550 82 (end_set_error(end_performative, error_handle) != 0))
Azure.IoT Build 0:6ae2f7bca550 83 {
AzureIoTClient 19:000ab4e6a2c1 84 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 85 }
Azure.IoT Build 0:6ae2f7bca550 86 else
Azure.IoT Build 0:6ae2f7bca550 87 {
Azure.IoT Build 0:6ae2f7bca550 88 AMQP_VALUE end_performative_value = amqpvalue_create_end(end_performative);
Azure.IoT Build 0:6ae2f7bca550 89 if (end_performative_value == NULL)
Azure.IoT Build 0:6ae2f7bca550 90 {
AzureIoTClient 19:000ab4e6a2c1 91 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 92 }
Azure.IoT Build 0:6ae2f7bca550 93 else
Azure.IoT Build 0:6ae2f7bca550 94 {
Azure.IoT Build 0:6ae2f7bca550 95 if (connection_encode_frame(session_instance->endpoint, end_performative_value, NULL, 0, NULL, NULL) != 0)
Azure.IoT Build 0:6ae2f7bca550 96 {
AzureIoTClient 19:000ab4e6a2c1 97 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 98 }
Azure.IoT Build 0:6ae2f7bca550 99 else
Azure.IoT Build 0:6ae2f7bca550 100 {
Azure.IoT Build 0:6ae2f7bca550 101 result = 0;
Azure.IoT Build 0:6ae2f7bca550 102 }
Azure.IoT Build 0:6ae2f7bca550 103
Azure.IoT Build 0:6ae2f7bca550 104 amqpvalue_destroy(end_performative_value);
Azure.IoT Build 0:6ae2f7bca550 105 }
Azure.IoT Build 0:6ae2f7bca550 106 }
Azure.IoT Build 0:6ae2f7bca550 107
Azure.IoT Build 0:6ae2f7bca550 108 end_destroy(end_performative);
Azure.IoT Build 0:6ae2f7bca550 109 }
Azure.IoT Build 0:6ae2f7bca550 110
Azure.IoT Build 0:6ae2f7bca550 111 return result;
Azure.IoT Build 0:6ae2f7bca550 112 }
Azure.IoT Build 0:6ae2f7bca550 113
Azure.IoT Build 0:6ae2f7bca550 114 static void end_session_with_error(SESSION_INSTANCE* session_instance, const char* condition_value, const char* description)
Azure.IoT Build 0:6ae2f7bca550 115 {
Azure.IoT Build 0:6ae2f7bca550 116 ERROR_HANDLE error_handle = error_create(condition_value);
Azure.IoT Build 0:6ae2f7bca550 117 if (error_handle == NULL)
Azure.IoT Build 0:6ae2f7bca550 118 {
Azure.IoT Build 0:6ae2f7bca550 119 /* fatal error */
Azure.IoT Build 0:6ae2f7bca550 120 session_set_state(session_instance, SESSION_STATE_DISCARDING);
Azure.IoT Build 0:6ae2f7bca550 121 (void)connection_close(session_instance->connection, "amqp:internal-error", "Cannot allocate error handle to end session");
Azure.IoT Build 0:6ae2f7bca550 122 }
Azure.IoT Build 0:6ae2f7bca550 123 else
Azure.IoT Build 0:6ae2f7bca550 124 {
Azure.IoT Build 0:6ae2f7bca550 125 if ((error_set_description(error_handle, description) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 126 (send_end_frame(session_instance, error_handle) != 0))
Azure.IoT Build 0:6ae2f7bca550 127 {
Azure.IoT Build 0:6ae2f7bca550 128 /* fatal error */
Azure.IoT Build 0:6ae2f7bca550 129 session_set_state(session_instance, SESSION_STATE_DISCARDING);
Azure.IoT Build 0:6ae2f7bca550 130 (void)connection_close(session_instance->connection, "amqp:internal-error", "Cannot allocate error handle to end session");
Azure.IoT Build 0:6ae2f7bca550 131 }
Azure.IoT Build 0:6ae2f7bca550 132 else
Azure.IoT Build 0:6ae2f7bca550 133 {
Azure.IoT Build 0:6ae2f7bca550 134 session_set_state(session_instance, SESSION_STATE_DISCARDING);
Azure.IoT Build 0:6ae2f7bca550 135 }
Azure.IoT Build 0:6ae2f7bca550 136
Azure.IoT Build 0:6ae2f7bca550 137 error_destroy(error_handle);
Azure.IoT Build 0:6ae2f7bca550 138 }
Azure.IoT Build 0:6ae2f7bca550 139 }
Azure.IoT Build 0:6ae2f7bca550 140
Azure.IoT Build 0:6ae2f7bca550 141 static int send_begin(SESSION_INSTANCE* session_instance)
Azure.IoT Build 0:6ae2f7bca550 142 {
Azure.IoT Build 0:6ae2f7bca550 143 int result;
Azure.IoT Build 0:6ae2f7bca550 144 BEGIN_HANDLE begin = begin_create(session_instance->next_outgoing_id, session_instance->incoming_window, session_instance->outgoing_window);
Azure.IoT Build 0:6ae2f7bca550 145
Azure.IoT Build 0:6ae2f7bca550 146 if (begin == NULL)
Azure.IoT Build 0:6ae2f7bca550 147 {
AzureIoTClient 19:000ab4e6a2c1 148 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 149 }
Azure.IoT Build 0:6ae2f7bca550 150 else
Azure.IoT Build 0:6ae2f7bca550 151 {
Azure.IoT Build 0:6ae2f7bca550 152 uint16_t remote_channel;
Azure.IoT Build 0:6ae2f7bca550 153 if (begin_set_handle_max(begin, session_instance->handle_max) != 0)
Azure.IoT Build 0:6ae2f7bca550 154 {
AzureIoTClient 19:000ab4e6a2c1 155 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 156 }
Azure.IoT Build 0:6ae2f7bca550 157 else if ((session_instance->session_state == SESSION_STATE_BEGIN_RCVD) &&
Azure.IoT Build 0:6ae2f7bca550 158 ((connection_endpoint_get_incoming_channel(session_instance->endpoint, &remote_channel) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 159 (begin_set_remote_channel(begin, remote_channel) != 0)))
Azure.IoT Build 0:6ae2f7bca550 160 {
AzureIoTClient 19:000ab4e6a2c1 161 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 162 }
Azure.IoT Build 0:6ae2f7bca550 163 else
Azure.IoT Build 0:6ae2f7bca550 164 {
Azure.IoT Build 0:6ae2f7bca550 165 AMQP_VALUE begin_performative_value = amqpvalue_create_begin(begin);
Azure.IoT Build 0:6ae2f7bca550 166 if (begin_performative_value == NULL)
Azure.IoT Build 0:6ae2f7bca550 167 {
AzureIoTClient 19:000ab4e6a2c1 168 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 169 }
Azure.IoT Build 0:6ae2f7bca550 170 else
Azure.IoT Build 0:6ae2f7bca550 171 {
Azure.IoT Build 0:6ae2f7bca550 172 if (connection_encode_frame(session_instance->endpoint, begin_performative_value, NULL, 0, NULL, NULL) != 0)
Azure.IoT Build 0:6ae2f7bca550 173 {
AzureIoTClient 19:000ab4e6a2c1 174 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 175 }
Azure.IoT Build 0:6ae2f7bca550 176 else
Azure.IoT Build 0:6ae2f7bca550 177 {
Azure.IoT Build 0:6ae2f7bca550 178 result = 0;
Azure.IoT Build 0:6ae2f7bca550 179 }
Azure.IoT Build 0:6ae2f7bca550 180
Azure.IoT Build 0:6ae2f7bca550 181 amqpvalue_destroy(begin_performative_value);
Azure.IoT Build 0:6ae2f7bca550 182 }
Azure.IoT Build 0:6ae2f7bca550 183 }
Azure.IoT Build 0:6ae2f7bca550 184
Azure.IoT Build 0:6ae2f7bca550 185 begin_destroy(begin);
Azure.IoT Build 0:6ae2f7bca550 186 }
Azure.IoT Build 0:6ae2f7bca550 187
Azure.IoT Build 0:6ae2f7bca550 188 return result;
Azure.IoT Build 0:6ae2f7bca550 189 }
Azure.IoT Build 0:6ae2f7bca550 190
Azure.IoT Build 0:6ae2f7bca550 191 static int send_flow(SESSION_INSTANCE* session)
Azure.IoT Build 0:6ae2f7bca550 192 {
Azure.IoT Build 0:6ae2f7bca550 193 int result;
Azure.IoT Build 0:6ae2f7bca550 194 if (session == NULL)
Azure.IoT Build 0:6ae2f7bca550 195 {
AzureIoTClient 19:000ab4e6a2c1 196 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 197 }
Azure.IoT Build 0:6ae2f7bca550 198 else
Azure.IoT Build 0:6ae2f7bca550 199 {
Azure.IoT Build 0:6ae2f7bca550 200 FLOW_HANDLE flow = flow_create(session->incoming_window, session->next_outgoing_id, session->outgoing_window);
Azure.IoT Build 0:6ae2f7bca550 201
Azure.IoT Build 0:6ae2f7bca550 202 if (flow == NULL)
Azure.IoT Build 0:6ae2f7bca550 203 {
AzureIoTClient 19:000ab4e6a2c1 204 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 205 }
Azure.IoT Build 0:6ae2f7bca550 206 else
Azure.IoT Build 0:6ae2f7bca550 207 {
Azure.IoT Build 0:6ae2f7bca550 208 if (flow_set_next_incoming_id(flow, session->next_incoming_id) != 0)
Azure.IoT Build 0:6ae2f7bca550 209 {
AzureIoTClient 19:000ab4e6a2c1 210 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 211 }
Azure.IoT Build 0:6ae2f7bca550 212 else
Azure.IoT Build 0:6ae2f7bca550 213 {
Azure.IoT Build 0:6ae2f7bca550 214 AMQP_VALUE flow_performative_value = amqpvalue_create_flow(flow);
Azure.IoT Build 0:6ae2f7bca550 215 if (flow_performative_value == NULL)
Azure.IoT Build 0:6ae2f7bca550 216 {
AzureIoTClient 19:000ab4e6a2c1 217 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 218 }
Azure.IoT Build 0:6ae2f7bca550 219 else
Azure.IoT Build 0:6ae2f7bca550 220 {
Azure.IoT Build 0:6ae2f7bca550 221 if (connection_encode_frame(session->endpoint, flow_performative_value, NULL, 0, NULL, NULL) != 0)
Azure.IoT Build 0:6ae2f7bca550 222 {
AzureIoTClient 19:000ab4e6a2c1 223 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 224 }
Azure.IoT Build 0:6ae2f7bca550 225 else
Azure.IoT Build 0:6ae2f7bca550 226 {
Azure.IoT Build 0:6ae2f7bca550 227 result = 0;
Azure.IoT Build 0:6ae2f7bca550 228 }
Azure.IoT Build 0:6ae2f7bca550 229
Azure.IoT Build 0:6ae2f7bca550 230 amqpvalue_destroy(flow_performative_value);
Azure.IoT Build 0:6ae2f7bca550 231 }
Azure.IoT Build 0:6ae2f7bca550 232 }
Azure.IoT Build 0:6ae2f7bca550 233
Azure.IoT Build 0:6ae2f7bca550 234 flow_destroy(flow);
Azure.IoT Build 0:6ae2f7bca550 235 }
Azure.IoT Build 0:6ae2f7bca550 236 }
Azure.IoT Build 0:6ae2f7bca550 237
Azure.IoT Build 0:6ae2f7bca550 238 return result;
Azure.IoT Build 0:6ae2f7bca550 239 }
Azure.IoT Build 0:6ae2f7bca550 240
Azure.IoT Build 0:6ae2f7bca550 241 static LINK_ENDPOINT_INSTANCE* find_link_endpoint_by_name(SESSION_INSTANCE* session, const char* name)
Azure.IoT Build 0:6ae2f7bca550 242 {
Azure.IoT Build 0:6ae2f7bca550 243 uint32_t i;
Azure.IoT Build 0:6ae2f7bca550 244 LINK_ENDPOINT_INSTANCE* result;
Azure.IoT Build 0:6ae2f7bca550 245
Azure.IoT Build 0:6ae2f7bca550 246 for (i = 0; i < session->link_endpoint_count; i++)
Azure.IoT Build 0:6ae2f7bca550 247 {
Azure.IoT Build 0:6ae2f7bca550 248 if (strcmp(session->link_endpoints[i]->name, name) == 0)
Azure.IoT Build 0:6ae2f7bca550 249 {
Azure.IoT Build 0:6ae2f7bca550 250 break;
Azure.IoT Build 0:6ae2f7bca550 251 }
Azure.IoT Build 0:6ae2f7bca550 252 }
Azure.IoT Build 0:6ae2f7bca550 253
Azure.IoT Build 0:6ae2f7bca550 254 if (i == session->link_endpoint_count)
Azure.IoT Build 0:6ae2f7bca550 255 {
Azure.IoT Build 0:6ae2f7bca550 256 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 257 }
Azure.IoT Build 0:6ae2f7bca550 258 else
Azure.IoT Build 0:6ae2f7bca550 259 {
Azure.IoT Build 0:6ae2f7bca550 260 result = session->link_endpoints[i];
Azure.IoT Build 0:6ae2f7bca550 261 }
Azure.IoT Build 0:6ae2f7bca550 262
Azure.IoT Build 0:6ae2f7bca550 263 return result;
Azure.IoT Build 0:6ae2f7bca550 264 }
Azure.IoT Build 0:6ae2f7bca550 265
Azure.IoT Build 0:6ae2f7bca550 266 static LINK_ENDPOINT_INSTANCE* find_link_endpoint_by_input_handle(SESSION_INSTANCE* session, handle input_handle)
Azure.IoT Build 0:6ae2f7bca550 267 {
Azure.IoT Build 0:6ae2f7bca550 268 uint32_t i;
Azure.IoT Build 0:6ae2f7bca550 269 LINK_ENDPOINT_INSTANCE* result;
Azure.IoT Build 0:6ae2f7bca550 270
Azure.IoT Build 0:6ae2f7bca550 271 for (i = 0; i < session->link_endpoint_count; i++)
Azure.IoT Build 0:6ae2f7bca550 272 {
Azure.IoT Build 0:6ae2f7bca550 273 if (session->link_endpoints[i]->input_handle == input_handle)
Azure.IoT Build 0:6ae2f7bca550 274 {
Azure.IoT Build 0:6ae2f7bca550 275 break;
Azure.IoT Build 0:6ae2f7bca550 276 }
Azure.IoT Build 0:6ae2f7bca550 277 }
Azure.IoT Build 0:6ae2f7bca550 278
Azure.IoT Build 0:6ae2f7bca550 279 if (i == session->link_endpoint_count)
Azure.IoT Build 0:6ae2f7bca550 280 {
Azure.IoT Build 0:6ae2f7bca550 281 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 282 }
Azure.IoT Build 0:6ae2f7bca550 283 else
Azure.IoT Build 0:6ae2f7bca550 284 {
Azure.IoT Build 0:6ae2f7bca550 285 result = session->link_endpoints[i];
Azure.IoT Build 0:6ae2f7bca550 286 }
Azure.IoT Build 0:6ae2f7bca550 287
Azure.IoT Build 0:6ae2f7bca550 288 return result;
Azure.IoT Build 0:6ae2f7bca550 289 }
Azure.IoT Build 0:6ae2f7bca550 290
Azure.IoT Build 0:6ae2f7bca550 291 static void on_connection_state_changed(void* context, CONNECTION_STATE new_connection_state, CONNECTION_STATE previous_connection_state)
Azure.IoT Build 0:6ae2f7bca550 292 {
Azure.IoT Build 0:6ae2f7bca550 293 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)context;
Azure.IoT Build 0:6ae2f7bca550 294
Azure.IoT Build 0:6ae2f7bca550 295 /* Codes_SRS_SESSION_01_060: [If the previous connection state is not OPENED and the new connection state is OPENED, the BEGIN frame shall be sent out and the state shall be switched to BEGIN_SENT.] */
Azure.IoT Build 0:6ae2f7bca550 296 if ((new_connection_state == CONNECTION_STATE_OPENED) && (previous_connection_state != CONNECTION_STATE_OPENED) && (session_instance->session_state == SESSION_STATE_UNMAPPED))
Azure.IoT Build 0:6ae2f7bca550 297 {
Azure.IoT Build 0:6ae2f7bca550 298 if (send_begin(session_instance) == 0)
Azure.IoT Build 0:6ae2f7bca550 299 {
Azure.IoT Build 0:6ae2f7bca550 300 session_set_state(session_instance, SESSION_STATE_BEGIN_SENT);
Azure.IoT Build 0:6ae2f7bca550 301 }
Azure.IoT Build 0:6ae2f7bca550 302 }
Azure.IoT Build 0:6ae2f7bca550 303 /* Codes_SRS_SESSION_01_061: [If the previous connection state is OPENED and the new connection state is not OPENED anymore, the state shall be switched to DISCARDING.] */
Azure.IoT Build 0:6ae2f7bca550 304 else if ((new_connection_state == CONNECTION_STATE_CLOSE_RCVD) || (new_connection_state == CONNECTION_STATE_END))
Azure.IoT Build 0:6ae2f7bca550 305 {
Azure.IoT Build 0:6ae2f7bca550 306 session_set_state(session_instance, SESSION_STATE_DISCARDING);
Azure.IoT Build 0:6ae2f7bca550 307 }
AzureIoTClient 1:eab586236bfe 308 /* Codes_SRS_SESSION_09_001: [If the new connection state is ERROR, the state shall be switched to ERROR.] */
AzureIoTClient 1:eab586236bfe 309 else if (new_connection_state == CONNECTION_STATE_ERROR)
AzureIoTClient 1:eab586236bfe 310 {
AzureIoTClient 1:eab586236bfe 311 session_set_state(session_instance, SESSION_STATE_ERROR);
AzureIoTClient 1:eab586236bfe 312 }
Azure.IoT Build 0:6ae2f7bca550 313 }
Azure.IoT Build 0:6ae2f7bca550 314
Azure.IoT Build 0:6ae2f7bca550 315 static void on_frame_received(void* context, AMQP_VALUE performative, uint32_t payload_size, const unsigned char* payload_bytes)
Azure.IoT Build 0:6ae2f7bca550 316 {
Azure.IoT Build 0:6ae2f7bca550 317 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)context;
Azure.IoT Build 0:6ae2f7bca550 318 AMQP_VALUE descriptor = amqpvalue_get_inplace_descriptor(performative);
Azure.IoT Build 0:6ae2f7bca550 319
Azure.IoT Build 0:6ae2f7bca550 320 if (is_begin_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 321 {
Azure.IoT Build 0:6ae2f7bca550 322 BEGIN_HANDLE begin_handle;
Azure.IoT Build 0:6ae2f7bca550 323
Azure.IoT Build 0:6ae2f7bca550 324 if (amqpvalue_get_begin(performative, &begin_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 325 {
Azure.IoT Build 0:6ae2f7bca550 326 connection_close(session_instance->connection, "amqp:decode-error", "Cannot decode BEGIN frame");
Azure.IoT Build 0:6ae2f7bca550 327 }
Azure.IoT Build 0:6ae2f7bca550 328 else
Azure.IoT Build 0:6ae2f7bca550 329 {
Azure.IoT Build 0:6ae2f7bca550 330 if ((begin_get_incoming_window(begin_handle, &session_instance->remote_incoming_window) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 331 (begin_get_next_outgoing_id(begin_handle, &session_instance->next_incoming_id) != 0))
Azure.IoT Build 0:6ae2f7bca550 332 {
Azure.IoT Build 0:6ae2f7bca550 333 /* error */
Azure.IoT Build 0:6ae2f7bca550 334 begin_destroy(begin_handle);
Azure.IoT Build 0:6ae2f7bca550 335 session_set_state(session_instance, SESSION_STATE_DISCARDING);
Azure.IoT Build 0:6ae2f7bca550 336 connection_close(session_instance->connection, "amqp:decode-error", "Cannot get incoming windows and next outgoing id");
Azure.IoT Build 0:6ae2f7bca550 337 }
Azure.IoT Build 0:6ae2f7bca550 338 else
Azure.IoT Build 0:6ae2f7bca550 339 {
Azure.IoT Build 0:6ae2f7bca550 340 begin_destroy(begin_handle);
Azure.IoT Build 0:6ae2f7bca550 341
Azure.IoT Build 0:6ae2f7bca550 342 if (session_instance->session_state == SESSION_STATE_BEGIN_SENT)
Azure.IoT Build 0:6ae2f7bca550 343 {
Azure.IoT Build 0:6ae2f7bca550 344 session_set_state(session_instance, SESSION_STATE_MAPPED);
Azure.IoT Build 0:6ae2f7bca550 345 }
Azure.IoT Build 0:6ae2f7bca550 346 else if(session_instance->session_state == SESSION_STATE_UNMAPPED)
Azure.IoT Build 0:6ae2f7bca550 347 {
Azure.IoT Build 0:6ae2f7bca550 348 session_set_state(session_instance, SESSION_STATE_BEGIN_RCVD);
Azure.IoT Build 0:6ae2f7bca550 349 if (send_begin(session_instance) != 0)
Azure.IoT Build 0:6ae2f7bca550 350 {
Azure.IoT Build 0:6ae2f7bca550 351 connection_close(session_instance->connection, "amqp:internal-error", "Failed sending BEGIN frame");
Azure.IoT Build 0:6ae2f7bca550 352 session_set_state(session_instance, SESSION_STATE_DISCARDING);
Azure.IoT Build 0:6ae2f7bca550 353 }
Azure.IoT Build 0:6ae2f7bca550 354 else
Azure.IoT Build 0:6ae2f7bca550 355 {
Azure.IoT Build 0:6ae2f7bca550 356 session_set_state(session_instance, SESSION_STATE_MAPPED);
Azure.IoT Build 0:6ae2f7bca550 357 }
Azure.IoT Build 0:6ae2f7bca550 358 }
Azure.IoT Build 0:6ae2f7bca550 359 }
Azure.IoT Build 0:6ae2f7bca550 360 }
Azure.IoT Build 0:6ae2f7bca550 361 }
Azure.IoT Build 0:6ae2f7bca550 362 else if (is_attach_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 363 {
Azure.IoT Build 0:6ae2f7bca550 364 const char* name = NULL;
Azure.IoT Build 0:6ae2f7bca550 365 ATTACH_HANDLE attach_handle;
Azure.IoT Build 0:6ae2f7bca550 366
Azure.IoT Build 0:6ae2f7bca550 367 if (amqpvalue_get_attach(performative, &attach_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 368 {
Azure.IoT Build 0:6ae2f7bca550 369 end_session_with_error(session_instance, "amqp:decode-error", "Cannot decode ATTACH frame");
Azure.IoT Build 0:6ae2f7bca550 370 }
Azure.IoT Build 0:6ae2f7bca550 371 else
Azure.IoT Build 0:6ae2f7bca550 372 {
Azure.IoT Build 0:6ae2f7bca550 373 role role;
Azure.IoT Build 0:6ae2f7bca550 374 AMQP_VALUE source;
Azure.IoT Build 0:6ae2f7bca550 375 AMQP_VALUE target;
Azure.IoT Build 0:6ae2f7bca550 376
Azure.IoT Build 0:6ae2f7bca550 377 if ((attach_get_name(attach_handle, &name) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 378 (attach_get_role(attach_handle, &role) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 379 (attach_get_source(attach_handle, &source) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 380 (attach_get_target(attach_handle, &target) != 0))
Azure.IoT Build 0:6ae2f7bca550 381 {
Azure.IoT Build 0:6ae2f7bca550 382 end_session_with_error(session_instance, "amqp:decode-error", "Cannot get link name from ATTACH frame");
Azure.IoT Build 0:6ae2f7bca550 383 }
Azure.IoT Build 0:6ae2f7bca550 384 else
Azure.IoT Build 0:6ae2f7bca550 385 {
Azure.IoT Build 0:6ae2f7bca550 386 LINK_ENDPOINT_INSTANCE* link_endpoint = find_link_endpoint_by_name(session_instance, name);
Azure.IoT Build 0:6ae2f7bca550 387 if (link_endpoint == NULL)
Azure.IoT Build 0:6ae2f7bca550 388 {
Azure.IoT Build 0:6ae2f7bca550 389 /* new link attach */
Azure.IoT Build 0:6ae2f7bca550 390 if (session_instance->on_link_attached != NULL)
Azure.IoT Build 0:6ae2f7bca550 391 {
Azure.IoT Build 0:6ae2f7bca550 392 LINK_ENDPOINT_HANDLE new_link_endpoint = session_create_link_endpoint(session_instance, name);
Azure.IoT Build 0:6ae2f7bca550 393 if (new_link_endpoint == NULL)
Azure.IoT Build 0:6ae2f7bca550 394 {
Azure.IoT Build 0:6ae2f7bca550 395 end_session_with_error(session_instance, "amqp:internal-error", "Cannot create link endpoint");
Azure.IoT Build 0:6ae2f7bca550 396 }
Azure.IoT Build 0:6ae2f7bca550 397 else if (attach_get_handle(attach_handle, &new_link_endpoint->input_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 398 {
Azure.IoT Build 0:6ae2f7bca550 399 end_session_with_error(session_instance, "amqp:decode-error", "Cannot get input handle from ATTACH frame");
Azure.IoT Build 0:6ae2f7bca550 400 }
Azure.IoT Build 0:6ae2f7bca550 401 else
Azure.IoT Build 0:6ae2f7bca550 402 {
Azure.IoT Build 0:6ae2f7bca550 403 if (!session_instance->on_link_attached(session_instance->on_link_attached_callback_context, new_link_endpoint, name, role, source, target))
Azure.IoT Build 0:6ae2f7bca550 404 {
Azure.IoT Build 0:6ae2f7bca550 405 session_destroy_link_endpoint(new_link_endpoint);
Azure.IoT Build 0:6ae2f7bca550 406 new_link_endpoint = NULL;
Azure.IoT Build 0:6ae2f7bca550 407 }
Azure.IoT Build 0:6ae2f7bca550 408 else
Azure.IoT Build 0:6ae2f7bca550 409 {
Azure.IoT Build 0:6ae2f7bca550 410 if (new_link_endpoint->frame_received_callback != NULL)
Azure.IoT Build 0:6ae2f7bca550 411 {
Azure.IoT Build 0:6ae2f7bca550 412 new_link_endpoint->frame_received_callback(new_link_endpoint->callback_context, performative, payload_size, payload_bytes);
Azure.IoT Build 0:6ae2f7bca550 413 }
Azure.IoT Build 0:6ae2f7bca550 414 }
Azure.IoT Build 0:6ae2f7bca550 415 }
Azure.IoT Build 0:6ae2f7bca550 416 }
Azure.IoT Build 0:6ae2f7bca550 417 }
Azure.IoT Build 0:6ae2f7bca550 418 else
Azure.IoT Build 0:6ae2f7bca550 419 {
Azure.IoT Build 0:6ae2f7bca550 420 if (attach_get_handle(attach_handle, &link_endpoint->input_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 421 {
Azure.IoT Build 0:6ae2f7bca550 422 end_session_with_error(session_instance, "amqp:decode-error", "Cannot get input handle from ATTACH frame");
Azure.IoT Build 0:6ae2f7bca550 423 }
Azure.IoT Build 0:6ae2f7bca550 424 else
Azure.IoT Build 0:6ae2f7bca550 425 {
Azure.IoT Build 0:6ae2f7bca550 426 link_endpoint->frame_received_callback(link_endpoint->callback_context, performative, payload_size, payload_bytes);
Azure.IoT Build 0:6ae2f7bca550 427 }
Azure.IoT Build 0:6ae2f7bca550 428 }
Azure.IoT Build 0:6ae2f7bca550 429 }
Azure.IoT Build 0:6ae2f7bca550 430
Azure.IoT Build 0:6ae2f7bca550 431 attach_destroy(attach_handle);
Azure.IoT Build 0:6ae2f7bca550 432 }
Azure.IoT Build 0:6ae2f7bca550 433 }
Azure.IoT Build 0:6ae2f7bca550 434 else if (is_detach_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 435 {
Azure.IoT Build 0:6ae2f7bca550 436 DETACH_HANDLE detach_handle;
Azure.IoT Build 0:6ae2f7bca550 437
Azure.IoT Build 0:6ae2f7bca550 438 if (amqpvalue_get_detach(performative, &detach_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 439 {
Azure.IoT Build 0:6ae2f7bca550 440 end_session_with_error(session_instance, "amqp:decode-error", "Cannot decode DETACH frame");
Azure.IoT Build 0:6ae2f7bca550 441 }
Azure.IoT Build 0:6ae2f7bca550 442 else
Azure.IoT Build 0:6ae2f7bca550 443 {
Azure.IoT Build 0:6ae2f7bca550 444 uint32_t remote_handle;
Azure.IoT Build 0:6ae2f7bca550 445 if (detach_get_handle(detach_handle, &remote_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 446 {
Azure.IoT Build 0:6ae2f7bca550 447 end_session_with_error(session_instance, "amqp:decode-error", "Cannot get handle from DETACH frame");
Azure.IoT Build 0:6ae2f7bca550 448
Azure.IoT Build 0:6ae2f7bca550 449 detach_destroy(detach_handle);
Azure.IoT Build 0:6ae2f7bca550 450 }
Azure.IoT Build 0:6ae2f7bca550 451 else
Azure.IoT Build 0:6ae2f7bca550 452 {
AzureIoTClient 25:1101516ee67d 453 LINK_ENDPOINT_INSTANCE* link_endpoint;
Azure.IoT Build 0:6ae2f7bca550 454 detach_destroy(detach_handle);
Azure.IoT Build 0:6ae2f7bca550 455
AzureIoTClient 25:1101516ee67d 456 link_endpoint = find_link_endpoint_by_input_handle(session_instance, remote_handle);
Azure.IoT Build 0:6ae2f7bca550 457 if (link_endpoint == NULL)
Azure.IoT Build 0:6ae2f7bca550 458 {
Azure.IoT Build 0:6ae2f7bca550 459 end_session_with_error(session_instance, "amqp:session:unattached-handle", "");
Azure.IoT Build 0:6ae2f7bca550 460 }
Azure.IoT Build 0:6ae2f7bca550 461 else
Azure.IoT Build 0:6ae2f7bca550 462 {
Azure.IoT Build 0:6ae2f7bca550 463 link_endpoint->frame_received_callback(link_endpoint->callback_context, performative, payload_size, payload_bytes);
Azure.IoT Build 0:6ae2f7bca550 464 }
Azure.IoT Build 0:6ae2f7bca550 465 }
Azure.IoT Build 0:6ae2f7bca550 466 }
Azure.IoT Build 0:6ae2f7bca550 467 }
Azure.IoT Build 0:6ae2f7bca550 468 else if (is_flow_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 469 {
Azure.IoT Build 0:6ae2f7bca550 470 FLOW_HANDLE flow_handle;
Azure.IoT Build 0:6ae2f7bca550 471
Azure.IoT Build 0:6ae2f7bca550 472 if (amqpvalue_get_flow(performative, &flow_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 473 {
Azure.IoT Build 0:6ae2f7bca550 474 end_session_with_error(session_instance, "amqp:decode-error", "Cannot decode FLOW frame");
Azure.IoT Build 0:6ae2f7bca550 475 }
Azure.IoT Build 0:6ae2f7bca550 476 else
Azure.IoT Build 0:6ae2f7bca550 477 {
Azure.IoT Build 0:6ae2f7bca550 478 uint32_t remote_handle;
Azure.IoT Build 0:6ae2f7bca550 479 transfer_number flow_next_incoming_id;
Azure.IoT Build 0:6ae2f7bca550 480 uint32_t flow_incoming_window;
Azure.IoT Build 0:6ae2f7bca550 481
Azure.IoT Build 0:6ae2f7bca550 482 if (flow_get_next_incoming_id(flow_handle, &flow_next_incoming_id) != 0)
Azure.IoT Build 0:6ae2f7bca550 483 {
Azure.IoT Build 0:6ae2f7bca550 484 /*
Azure.IoT Build 0:6ae2f7bca550 485 If the next-incoming-id field of the flow frame is not set,
Azure.IoT Build 0:6ae2f7bca550 486 then remote-incomingwindow is computed as follows:
Azure.IoT Build 0:6ae2f7bca550 487 initial-outgoing-id(endpoint) + incoming-window(flow) - next-outgoing-id(endpoint)
Azure.IoT Build 0:6ae2f7bca550 488 */
Azure.IoT Build 0:6ae2f7bca550 489 flow_next_incoming_id = session_instance->next_outgoing_id;
Azure.IoT Build 0:6ae2f7bca550 490 }
Azure.IoT Build 0:6ae2f7bca550 491
Azure.IoT Build 0:6ae2f7bca550 492 if ((flow_get_next_outgoing_id(flow_handle, &session_instance->next_incoming_id) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 493 (flow_get_incoming_window(flow_handle, &flow_incoming_window) != 0))
Azure.IoT Build 0:6ae2f7bca550 494 {
Azure.IoT Build 0:6ae2f7bca550 495 flow_destroy(flow_handle);
Azure.IoT Build 0:6ae2f7bca550 496
Azure.IoT Build 0:6ae2f7bca550 497 end_session_with_error(session_instance, "amqp:decode-error", "Cannot decode FLOW frame");
Azure.IoT Build 0:6ae2f7bca550 498 }
Azure.IoT Build 0:6ae2f7bca550 499 else
Azure.IoT Build 0:6ae2f7bca550 500 {
Azure.IoT Build 0:6ae2f7bca550 501 LINK_ENDPOINT_INSTANCE* link_endpoint_instance = NULL;
AzureIoTClient 25:1101516ee67d 502 size_t i;
Azure.IoT Build 0:6ae2f7bca550 503
Azure.IoT Build 0:6ae2f7bca550 504 session_instance->remote_incoming_window = flow_next_incoming_id + flow_incoming_window - session_instance->next_outgoing_id;
Azure.IoT Build 0:6ae2f7bca550 505
Azure.IoT Build 0:6ae2f7bca550 506 if (flow_get_handle(flow_handle, &remote_handle) == 0)
Azure.IoT Build 0:6ae2f7bca550 507 {
Azure.IoT Build 0:6ae2f7bca550 508 link_endpoint_instance = find_link_endpoint_by_input_handle(session_instance, remote_handle);
Azure.IoT Build 0:6ae2f7bca550 509 }
Azure.IoT Build 0:6ae2f7bca550 510
Azure.IoT Build 0:6ae2f7bca550 511 flow_destroy(flow_handle);
Azure.IoT Build 0:6ae2f7bca550 512
Azure.IoT Build 0:6ae2f7bca550 513 if (link_endpoint_instance != NULL)
Azure.IoT Build 0:6ae2f7bca550 514 {
Azure.IoT Build 0:6ae2f7bca550 515 link_endpoint_instance->frame_received_callback(link_endpoint_instance->callback_context, performative, payload_size, payload_bytes);
Azure.IoT Build 0:6ae2f7bca550 516 }
Azure.IoT Build 0:6ae2f7bca550 517
AzureIoTClient 25:1101516ee67d 518 i = 0;
Azure.IoT Build 0:6ae2f7bca550 519 while ((session_instance->remote_incoming_window > 0) && (i < session_instance->link_endpoint_count))
Azure.IoT Build 0:6ae2f7bca550 520 {
Azure.IoT Build 0:6ae2f7bca550 521 /* notify the caller that it can send here */
Azure.IoT Build 0:6ae2f7bca550 522 if (session_instance->link_endpoints[i]->on_session_flow_on != NULL)
Azure.IoT Build 0:6ae2f7bca550 523 {
Azure.IoT Build 0:6ae2f7bca550 524 session_instance->link_endpoints[i]->on_session_flow_on(session_instance->link_endpoints[i]->callback_context);
Azure.IoT Build 0:6ae2f7bca550 525 }
Azure.IoT Build 0:6ae2f7bca550 526
Azure.IoT Build 0:6ae2f7bca550 527 i++;
Azure.IoT Build 0:6ae2f7bca550 528 }
Azure.IoT Build 0:6ae2f7bca550 529 }
Azure.IoT Build 0:6ae2f7bca550 530 }
Azure.IoT Build 0:6ae2f7bca550 531 }
Azure.IoT Build 0:6ae2f7bca550 532 else if (is_transfer_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 533 {
Azure.IoT Build 0:6ae2f7bca550 534 TRANSFER_HANDLE transfer_handle;
Azure.IoT Build 0:6ae2f7bca550 535
Azure.IoT Build 0:6ae2f7bca550 536 if (amqpvalue_get_transfer(performative, &transfer_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 537 {
Azure.IoT Build 0:6ae2f7bca550 538 end_session_with_error(session_instance, "amqp:decode-error", "Cannot decode TRANSFER frame");
Azure.IoT Build 0:6ae2f7bca550 539 }
Azure.IoT Build 0:6ae2f7bca550 540 else
Azure.IoT Build 0:6ae2f7bca550 541 {
Azure.IoT Build 0:6ae2f7bca550 542 uint32_t remote_handle;
Azure.IoT Build 0:6ae2f7bca550 543 delivery_number delivery_id;
Azure.IoT Build 0:6ae2f7bca550 544
Azure.IoT Build 0:6ae2f7bca550 545 transfer_get_delivery_id(transfer_handle, &delivery_id);
Azure.IoT Build 0:6ae2f7bca550 546 if (transfer_get_handle(transfer_handle, &remote_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 547 {
Azure.IoT Build 0:6ae2f7bca550 548 transfer_destroy(transfer_handle);
Azure.IoT Build 0:6ae2f7bca550 549 end_session_with_error(session_instance, "amqp:decode-error", "Cannot get handle from TRANSFER frame");
Azure.IoT Build 0:6ae2f7bca550 550 }
Azure.IoT Build 0:6ae2f7bca550 551 else
Azure.IoT Build 0:6ae2f7bca550 552 {
AzureIoTClient 25:1101516ee67d 553 LINK_ENDPOINT_INSTANCE* link_endpoint;
Azure.IoT Build 0:6ae2f7bca550 554 transfer_destroy(transfer_handle);
Azure.IoT Build 0:6ae2f7bca550 555
Azure.IoT Build 0:6ae2f7bca550 556 session_instance->next_incoming_id++;
Azure.IoT Build 0:6ae2f7bca550 557 session_instance->remote_outgoing_window--;
Azure.IoT Build 0:6ae2f7bca550 558 session_instance->incoming_window--;
Azure.IoT Build 0:6ae2f7bca550 559
AzureIoTClient 25:1101516ee67d 560 link_endpoint = find_link_endpoint_by_input_handle(session_instance, remote_handle);
Azure.IoT Build 0:6ae2f7bca550 561 if (link_endpoint == NULL)
Azure.IoT Build 0:6ae2f7bca550 562 {
Azure.IoT Build 0:6ae2f7bca550 563 end_session_with_error(session_instance, "amqp:session:unattached-handle", "");
Azure.IoT Build 0:6ae2f7bca550 564 }
Azure.IoT Build 0:6ae2f7bca550 565 else
Azure.IoT Build 0:6ae2f7bca550 566 {
Azure.IoT Build 0:6ae2f7bca550 567 link_endpoint->frame_received_callback(link_endpoint->callback_context, performative, payload_size, payload_bytes);
Azure.IoT Build 0:6ae2f7bca550 568 }
Azure.IoT Build 0:6ae2f7bca550 569
Azure.IoT Build 0:6ae2f7bca550 570 if (session_instance->incoming_window == 0)
Azure.IoT Build 0:6ae2f7bca550 571 {
Azure.IoT Build 0:6ae2f7bca550 572 session_instance->incoming_window = session_instance->desired_incoming_window;
Azure.IoT Build 0:6ae2f7bca550 573 send_flow(session_instance);
Azure.IoT Build 0:6ae2f7bca550 574 }
Azure.IoT Build 0:6ae2f7bca550 575 }
Azure.IoT Build 0:6ae2f7bca550 576 }
Azure.IoT Build 0:6ae2f7bca550 577 }
Azure.IoT Build 0:6ae2f7bca550 578 else if (is_disposition_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 579 {
Azure.IoT Build 0:6ae2f7bca550 580 uint32_t i;
Azure.IoT Build 0:6ae2f7bca550 581
Azure.IoT Build 0:6ae2f7bca550 582 for (i = 0; i < session_instance->link_endpoint_count; i++)
Azure.IoT Build 0:6ae2f7bca550 583 {
Azure.IoT Build 0:6ae2f7bca550 584 LINK_ENDPOINT_INSTANCE* link_endpoint = session_instance->link_endpoints[i];
Azure.IoT Build 0:6ae2f7bca550 585 link_endpoint->frame_received_callback(link_endpoint->callback_context, performative, payload_size, payload_bytes);
Azure.IoT Build 0:6ae2f7bca550 586 }
Azure.IoT Build 0:6ae2f7bca550 587 }
Azure.IoT Build 0:6ae2f7bca550 588 else if (is_end_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 589 {
Azure.IoT Build 0:6ae2f7bca550 590 END_HANDLE end_handle;
Azure.IoT Build 0:6ae2f7bca550 591
Azure.IoT Build 0:6ae2f7bca550 592 if (amqpvalue_get_end(performative, &end_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 593 {
Azure.IoT Build 0:6ae2f7bca550 594 end_session_with_error(session_instance, "amqp:decode-error", "Cannot decode END frame");
Azure.IoT Build 0:6ae2f7bca550 595 }
Azure.IoT Build 0:6ae2f7bca550 596 else
Azure.IoT Build 0:6ae2f7bca550 597 {
AzureIoTClient 25:1101516ee67d 598 end_destroy(end_handle);
Azure.IoT Build 0:6ae2f7bca550 599 if ((session_instance->session_state != SESSION_STATE_END_RCVD) &&
Azure.IoT Build 0:6ae2f7bca550 600 (session_instance->session_state != SESSION_STATE_DISCARDING))
Azure.IoT Build 0:6ae2f7bca550 601 {
Azure.IoT Build 0:6ae2f7bca550 602 session_set_state(session_instance, SESSION_STATE_END_RCVD);
Azure.IoT Build 0:6ae2f7bca550 603 if (send_end_frame(session_instance, NULL) != 0)
Azure.IoT Build 0:6ae2f7bca550 604 {
Azure.IoT Build 0:6ae2f7bca550 605 /* fatal error */
Azure.IoT Build 0:6ae2f7bca550 606 (void)connection_close(session_instance->connection, "amqp:internal-error", "Cannot send END frame.");
Azure.IoT Build 0:6ae2f7bca550 607 }
Azure.IoT Build 0:6ae2f7bca550 608
Azure.IoT Build 0:6ae2f7bca550 609 session_set_state(session_instance, SESSION_STATE_DISCARDING);
Azure.IoT Build 0:6ae2f7bca550 610 }
Azure.IoT Build 0:6ae2f7bca550 611 }
Azure.IoT Build 0:6ae2f7bca550 612 }
Azure.IoT Build 0:6ae2f7bca550 613 }
Azure.IoT Build 0:6ae2f7bca550 614
Azure.IoT Build 0:6ae2f7bca550 615 SESSION_HANDLE session_create(CONNECTION_HANDLE connection, ON_LINK_ATTACHED on_link_attached, void* callback_context)
Azure.IoT Build 0:6ae2f7bca550 616 {
Azure.IoT Build 0:6ae2f7bca550 617 SESSION_INSTANCE* result;
Azure.IoT Build 0:6ae2f7bca550 618
Azure.IoT Build 0:6ae2f7bca550 619 if (connection == NULL)
Azure.IoT Build 0:6ae2f7bca550 620 {
Azure.IoT Build 0:6ae2f7bca550 621 /* Codes_SRS_SESSION_01_031: [If connection is NULL, session_create shall fail and return NULL.] */
Azure.IoT Build 0:6ae2f7bca550 622 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 623 }
Azure.IoT Build 0:6ae2f7bca550 624 else
Azure.IoT Build 0:6ae2f7bca550 625 {
Azure.IoT Build 0:6ae2f7bca550 626 /* Codes_SRS_SESSION_01_030: [session_create shall create a new session instance and return a non-NULL handle to it.] */
AzureIoTClient 23:1111ee8bcba4 627 result = (SESSION_INSTANCE*)malloc(sizeof(SESSION_INSTANCE));
Azure.IoT Build 0:6ae2f7bca550 628 /* Codes_SRS_SESSION_01_042: [If allocating memory for the session fails, session_create shall fail and return NULL.] */
Azure.IoT Build 0:6ae2f7bca550 629 if (result != NULL)
Azure.IoT Build 0:6ae2f7bca550 630 {
Azure.IoT Build 0:6ae2f7bca550 631 result->connection = connection;
Azure.IoT Build 0:6ae2f7bca550 632 result->link_endpoints = NULL;
Azure.IoT Build 0:6ae2f7bca550 633 result->link_endpoint_count = 0;
Azure.IoT Build 0:6ae2f7bca550 634 result->handle_max = 4294967295u;
Azure.IoT Build 0:6ae2f7bca550 635
Azure.IoT Build 0:6ae2f7bca550 636 /* Codes_SRS_SESSION_01_057: [The delivery ids shall be assigned starting at 0.] */
Azure.IoT Build 0:6ae2f7bca550 637 /* Codes_SRS_SESSION_01_017: [The nextoutgoing-id MAY be initialized to an arbitrary value ] */
Azure.IoT Build 0:6ae2f7bca550 638 result->next_outgoing_id = 0;
Azure.IoT Build 0:6ae2f7bca550 639
Azure.IoT Build 0:6ae2f7bca550 640 result->desired_incoming_window = 1;
Azure.IoT Build 0:6ae2f7bca550 641 result->incoming_window = 1;
Azure.IoT Build 0:6ae2f7bca550 642 result->outgoing_window = 1;
Azure.IoT Build 0:6ae2f7bca550 643 result->handle_max = 4294967295u;
Azure.IoT Build 0:6ae2f7bca550 644 result->remote_incoming_window = 0;
Azure.IoT Build 0:6ae2f7bca550 645 result->remote_outgoing_window = 0;
Azure.IoT Build 0:6ae2f7bca550 646 result->previous_session_state = SESSION_STATE_UNMAPPED;
AzureIoTClient 6:641a9672db08 647 result->is_underlying_connection_open = UNDERLYING_CONNECTION_NOT_OPEN;
Azure.IoT Build 0:6ae2f7bca550 648 result->session_state = SESSION_STATE_UNMAPPED;
Azure.IoT Build 0:6ae2f7bca550 649 result->on_link_attached = on_link_attached;
Azure.IoT Build 0:6ae2f7bca550 650 result->on_link_attached_callback_context = callback_context;
Azure.IoT Build 0:6ae2f7bca550 651
Azure.IoT Build 0:6ae2f7bca550 652 /* Codes_SRS_SESSION_01_032: [session_create shall create a new session endpoint by calling connection_create_endpoint.] */
Azure.IoT Build 0:6ae2f7bca550 653 result->endpoint = connection_create_endpoint(connection);
Azure.IoT Build 0:6ae2f7bca550 654 if (result->endpoint == NULL)
Azure.IoT Build 0:6ae2f7bca550 655 {
Azure.IoT Build 0:6ae2f7bca550 656 /* Codes_SRS_SESSION_01_033: [If connection_create_endpoint fails, session_create shall fail and return NULL.] */
AzureIoTClient 21:f9c433d8e6ca 657 free(result);
Azure.IoT Build 0:6ae2f7bca550 658 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 659 }
Azure.IoT Build 0:6ae2f7bca550 660 else
Azure.IoT Build 0:6ae2f7bca550 661 {
Azure.IoT Build 0:6ae2f7bca550 662 session_set_state(result, SESSION_STATE_UNMAPPED);
Azure.IoT Build 0:6ae2f7bca550 663 }
Azure.IoT Build 0:6ae2f7bca550 664 }
Azure.IoT Build 0:6ae2f7bca550 665 }
Azure.IoT Build 0:6ae2f7bca550 666
Azure.IoT Build 0:6ae2f7bca550 667 return result;
Azure.IoT Build 0:6ae2f7bca550 668 }
Azure.IoT Build 0:6ae2f7bca550 669
Azure.IoT Build 0:6ae2f7bca550 670 SESSION_HANDLE session_create_from_endpoint(CONNECTION_HANDLE connection, ENDPOINT_HANDLE endpoint, ON_LINK_ATTACHED on_link_attached, void* callback_context)
Azure.IoT Build 0:6ae2f7bca550 671 {
Azure.IoT Build 0:6ae2f7bca550 672 SESSION_INSTANCE* result;
Azure.IoT Build 0:6ae2f7bca550 673
Azure.IoT Build 0:6ae2f7bca550 674 if (endpoint == NULL)
Azure.IoT Build 0:6ae2f7bca550 675 {
Azure.IoT Build 0:6ae2f7bca550 676 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 677 }
Azure.IoT Build 0:6ae2f7bca550 678 else
Azure.IoT Build 0:6ae2f7bca550 679 {
AzureIoTClient 23:1111ee8bcba4 680 result = (SESSION_INSTANCE*)malloc(sizeof(SESSION_INSTANCE));
Azure.IoT Build 0:6ae2f7bca550 681 if (result != NULL)
Azure.IoT Build 0:6ae2f7bca550 682 {
Azure.IoT Build 0:6ae2f7bca550 683 result->connection = connection;
Azure.IoT Build 0:6ae2f7bca550 684 result->link_endpoints = NULL;
Azure.IoT Build 0:6ae2f7bca550 685 result->link_endpoint_count = 0;
Azure.IoT Build 0:6ae2f7bca550 686 result->handle_max = 4294967295u;
Azure.IoT Build 0:6ae2f7bca550 687
Azure.IoT Build 0:6ae2f7bca550 688 result->next_outgoing_id = 0;
Azure.IoT Build 0:6ae2f7bca550 689
AzureIoTClient 22:524bded3f7a8 690 result->desired_incoming_window = 1;
AzureIoTClient 22:524bded3f7a8 691 result->incoming_window = 1;
Azure.IoT Build 0:6ae2f7bca550 692 result->outgoing_window = 1;
Azure.IoT Build 0:6ae2f7bca550 693 result->handle_max = 4294967295u;
Azure.IoT Build 0:6ae2f7bca550 694 result->remote_incoming_window = 0;
Azure.IoT Build 0:6ae2f7bca550 695 result->remote_outgoing_window = 0;
Azure.IoT Build 0:6ae2f7bca550 696 result->previous_session_state = SESSION_STATE_UNMAPPED;
AzureIoTClient 6:641a9672db08 697 result->is_underlying_connection_open = UNDERLYING_CONNECTION_NOT_OPEN;
Azure.IoT Build 0:6ae2f7bca550 698 result->session_state = SESSION_STATE_UNMAPPED;
Azure.IoT Build 0:6ae2f7bca550 699 result->on_link_attached = on_link_attached;
Azure.IoT Build 0:6ae2f7bca550 700 result->on_link_attached_callback_context = callback_context;
Azure.IoT Build 0:6ae2f7bca550 701
Azure.IoT Build 0:6ae2f7bca550 702 result->endpoint = endpoint;
Azure.IoT Build 0:6ae2f7bca550 703 session_set_state(result, SESSION_STATE_UNMAPPED);
Azure.IoT Build 0:6ae2f7bca550 704 }
Azure.IoT Build 0:6ae2f7bca550 705 }
Azure.IoT Build 0:6ae2f7bca550 706
Azure.IoT Build 0:6ae2f7bca550 707 return result;
Azure.IoT Build 0:6ae2f7bca550 708 }
Azure.IoT Build 0:6ae2f7bca550 709
Azure.IoT Build 0:6ae2f7bca550 710 void session_destroy(SESSION_HANDLE session)
Azure.IoT Build 0:6ae2f7bca550 711 {
Azure.IoT Build 0:6ae2f7bca550 712 /* Codes_SRS_SESSION_01_036: [If session is NULL, session_destroy shall do nothing.] */
Azure.IoT Build 0:6ae2f7bca550 713 if (session != NULL)
Azure.IoT Build 0:6ae2f7bca550 714 {
Azure.IoT Build 0:6ae2f7bca550 715 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)session;
Azure.IoT Build 0:6ae2f7bca550 716
Azure.IoT Build 0:6ae2f7bca550 717 session_end(session, NULL, NULL);
Azure.IoT Build 0:6ae2f7bca550 718
Azure.IoT Build 0:6ae2f7bca550 719 /* Codes_SRS_SESSION_01_034: [session_destroy shall free all resources allocated by session_create.] */
Azure.IoT Build 0:6ae2f7bca550 720 /* Codes_SRS_SESSION_01_035: [The endpoint created in session_create shall be freed by calling connection_destroy_endpoint.] */
Azure.IoT Build 0:6ae2f7bca550 721 connection_destroy_endpoint(session_instance->endpoint);
Azure.IoT Build 0:6ae2f7bca550 722 if (session_instance->link_endpoints != NULL)
Azure.IoT Build 0:6ae2f7bca550 723 {
AzureIoTClient 21:f9c433d8e6ca 724 free(session_instance->link_endpoints);
Azure.IoT Build 0:6ae2f7bca550 725 }
Azure.IoT Build 0:6ae2f7bca550 726
AzureIoTClient 21:f9c433d8e6ca 727 free(session);
Azure.IoT Build 0:6ae2f7bca550 728 }
Azure.IoT Build 0:6ae2f7bca550 729 }
Azure.IoT Build 0:6ae2f7bca550 730
Azure.IoT Build 0:6ae2f7bca550 731 int session_begin(SESSION_HANDLE session)
Azure.IoT Build 0:6ae2f7bca550 732 {
Azure.IoT Build 0:6ae2f7bca550 733 int result;
Azure.IoT Build 0:6ae2f7bca550 734
Azure.IoT Build 0:6ae2f7bca550 735 if (session == NULL)
Azure.IoT Build 0:6ae2f7bca550 736 {
AzureIoTClient 19:000ab4e6a2c1 737 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 738 }
Azure.IoT Build 0:6ae2f7bca550 739 else
Azure.IoT Build 0:6ae2f7bca550 740 {
Azure.IoT Build 0:6ae2f7bca550 741 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)session;
Azure.IoT Build 0:6ae2f7bca550 742
Azure.IoT Build 0:6ae2f7bca550 743 if (connection_start_endpoint(session_instance->endpoint, on_frame_received, on_connection_state_changed, session_instance) != 0)
Azure.IoT Build 0:6ae2f7bca550 744 {
AzureIoTClient 19:000ab4e6a2c1 745 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 746 }
Azure.IoT Build 0:6ae2f7bca550 747 else
Azure.IoT Build 0:6ae2f7bca550 748 {
Azure.IoT Build 0:6ae2f7bca550 749 if (!session_instance->is_underlying_connection_open)
Azure.IoT Build 0:6ae2f7bca550 750 {
Azure.IoT Build 0:6ae2f7bca550 751 if (connection_open(session_instance->connection) != 0)
Azure.IoT Build 0:6ae2f7bca550 752 {
AzureIoTClient 6:641a9672db08 753 session_instance->is_underlying_connection_open = UNDERLYING_CONNECTION_NOT_OPEN;
AzureIoTClient 19:000ab4e6a2c1 754 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 755 }
Azure.IoT Build 0:6ae2f7bca550 756 else
Azure.IoT Build 0:6ae2f7bca550 757 {
AzureIoTClient 6:641a9672db08 758 session_instance->is_underlying_connection_open = UNDERLYING_CONNECTION_OPEN;
Azure.IoT Build 0:6ae2f7bca550 759 result = 0;
Azure.IoT Build 0:6ae2f7bca550 760 }
Azure.IoT Build 0:6ae2f7bca550 761 }
Azure.IoT Build 0:6ae2f7bca550 762 else
Azure.IoT Build 0:6ae2f7bca550 763 {
Azure.IoT Build 0:6ae2f7bca550 764 result = 0;
Azure.IoT Build 0:6ae2f7bca550 765 }
Azure.IoT Build 0:6ae2f7bca550 766 }
Azure.IoT Build 0:6ae2f7bca550 767 }
Azure.IoT Build 0:6ae2f7bca550 768
Azure.IoT Build 0:6ae2f7bca550 769 return result;
Azure.IoT Build 0:6ae2f7bca550 770 }
Azure.IoT Build 0:6ae2f7bca550 771
Azure.IoT Build 0:6ae2f7bca550 772 int session_end(SESSION_HANDLE session, const char* condition_value, const char* description)
Azure.IoT Build 0:6ae2f7bca550 773 {
Azure.IoT Build 0:6ae2f7bca550 774 int result;
Azure.IoT Build 0:6ae2f7bca550 775
Azure.IoT Build 0:6ae2f7bca550 776 if (session == NULL)
Azure.IoT Build 0:6ae2f7bca550 777 {
AzureIoTClient 19:000ab4e6a2c1 778 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 779 }
Azure.IoT Build 0:6ae2f7bca550 780 else
Azure.IoT Build 0:6ae2f7bca550 781 {
Azure.IoT Build 0:6ae2f7bca550 782 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)session;
Azure.IoT Build 0:6ae2f7bca550 783
Azure.IoT Build 0:6ae2f7bca550 784 if ((session_instance->session_state != SESSION_STATE_UNMAPPED) &&
Azure.IoT Build 0:6ae2f7bca550 785 (session_instance->session_state != SESSION_STATE_DISCARDING))
Azure.IoT Build 0:6ae2f7bca550 786 {
Azure.IoT Build 0:6ae2f7bca550 787 ERROR_HANDLE error_handle = NULL;
Azure.IoT Build 0:6ae2f7bca550 788 result = 0;
Azure.IoT Build 0:6ae2f7bca550 789
Azure.IoT Build 0:6ae2f7bca550 790 if (condition_value != NULL)
Azure.IoT Build 0:6ae2f7bca550 791 {
Azure.IoT Build 0:6ae2f7bca550 792 error_handle = error_create(condition_value);
Azure.IoT Build 0:6ae2f7bca550 793 if (error_handle == NULL)
Azure.IoT Build 0:6ae2f7bca550 794 {
AzureIoTClient 19:000ab4e6a2c1 795 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 796 }
Azure.IoT Build 0:6ae2f7bca550 797 else
Azure.IoT Build 0:6ae2f7bca550 798 {
Azure.IoT Build 0:6ae2f7bca550 799 if (error_set_description(error_handle, description) != 0)
Azure.IoT Build 0:6ae2f7bca550 800 {
AzureIoTClient 19:000ab4e6a2c1 801 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 802 }
Azure.IoT Build 0:6ae2f7bca550 803 }
Azure.IoT Build 0:6ae2f7bca550 804 }
Azure.IoT Build 0:6ae2f7bca550 805
Azure.IoT Build 0:6ae2f7bca550 806 if (result == 0)
Azure.IoT Build 0:6ae2f7bca550 807 {
Azure.IoT Build 0:6ae2f7bca550 808 if (send_end_frame(session_instance, error_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 809 {
AzureIoTClient 19:000ab4e6a2c1 810 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 811 }
Azure.IoT Build 0:6ae2f7bca550 812 else
Azure.IoT Build 0:6ae2f7bca550 813 {
Azure.IoT Build 0:6ae2f7bca550 814 session_set_state(session_instance, SESSION_STATE_DISCARDING);
Azure.IoT Build 0:6ae2f7bca550 815 result = 0;
Azure.IoT Build 0:6ae2f7bca550 816 }
Azure.IoT Build 0:6ae2f7bca550 817 }
Azure.IoT Build 0:6ae2f7bca550 818
Azure.IoT Build 0:6ae2f7bca550 819 if (error_handle != NULL)
Azure.IoT Build 0:6ae2f7bca550 820 {
Azure.IoT Build 0:6ae2f7bca550 821 error_destroy(error_handle);
Azure.IoT Build 0:6ae2f7bca550 822 }
Azure.IoT Build 0:6ae2f7bca550 823 }
Azure.IoT Build 0:6ae2f7bca550 824 else
Azure.IoT Build 0:6ae2f7bca550 825 {
Azure.IoT Build 0:6ae2f7bca550 826 result = 0;
Azure.IoT Build 0:6ae2f7bca550 827 }
Azure.IoT Build 0:6ae2f7bca550 828 }
Azure.IoT Build 0:6ae2f7bca550 829
Azure.IoT Build 0:6ae2f7bca550 830 return result;
Azure.IoT Build 0:6ae2f7bca550 831 }
Azure.IoT Build 0:6ae2f7bca550 832
Azure.IoT Build 0:6ae2f7bca550 833 int session_set_incoming_window(SESSION_HANDLE session, uint32_t incoming_window)
Azure.IoT Build 0:6ae2f7bca550 834 {
Azure.IoT Build 0:6ae2f7bca550 835 int result;
Azure.IoT Build 0:6ae2f7bca550 836
Azure.IoT Build 0:6ae2f7bca550 837 if (session == NULL)
Azure.IoT Build 0:6ae2f7bca550 838 {
AzureIoTClient 19:000ab4e6a2c1 839 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 840 }
Azure.IoT Build 0:6ae2f7bca550 841 else
Azure.IoT Build 0:6ae2f7bca550 842 {
Azure.IoT Build 0:6ae2f7bca550 843 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)session;
Azure.IoT Build 0:6ae2f7bca550 844
Azure.IoT Build 0:6ae2f7bca550 845 session_instance->desired_incoming_window = incoming_window;
Azure.IoT Build 0:6ae2f7bca550 846 session_instance->incoming_window = incoming_window;
Azure.IoT Build 0:6ae2f7bca550 847
Azure.IoT Build 0:6ae2f7bca550 848 result = 0;
Azure.IoT Build 0:6ae2f7bca550 849 }
Azure.IoT Build 0:6ae2f7bca550 850
Azure.IoT Build 0:6ae2f7bca550 851 return result;
Azure.IoT Build 0:6ae2f7bca550 852 }
Azure.IoT Build 0:6ae2f7bca550 853
Azure.IoT Build 0:6ae2f7bca550 854 int session_get_incoming_window(SESSION_HANDLE session, uint32_t* incoming_window)
Azure.IoT Build 0:6ae2f7bca550 855 {
Azure.IoT Build 0:6ae2f7bca550 856 int result;
Azure.IoT Build 0:6ae2f7bca550 857
Azure.IoT Build 0:6ae2f7bca550 858 if ((session == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 859 (incoming_window == NULL))
Azure.IoT Build 0:6ae2f7bca550 860 {
AzureIoTClient 19:000ab4e6a2c1 861 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 862 }
Azure.IoT Build 0:6ae2f7bca550 863 else
Azure.IoT Build 0:6ae2f7bca550 864 {
Azure.IoT Build 0:6ae2f7bca550 865 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)session;
Azure.IoT Build 0:6ae2f7bca550 866
Azure.IoT Build 0:6ae2f7bca550 867 *incoming_window = session_instance->incoming_window;
Azure.IoT Build 0:6ae2f7bca550 868
Azure.IoT Build 0:6ae2f7bca550 869 result = 0;
Azure.IoT Build 0:6ae2f7bca550 870 }
Azure.IoT Build 0:6ae2f7bca550 871
Azure.IoT Build 0:6ae2f7bca550 872 return result;
Azure.IoT Build 0:6ae2f7bca550 873 }
Azure.IoT Build 0:6ae2f7bca550 874
Azure.IoT Build 0:6ae2f7bca550 875 int session_set_outgoing_window(SESSION_HANDLE session, uint32_t outgoing_window)
Azure.IoT Build 0:6ae2f7bca550 876 {
Azure.IoT Build 0:6ae2f7bca550 877 int result;
Azure.IoT Build 0:6ae2f7bca550 878
Azure.IoT Build 0:6ae2f7bca550 879 if (session == NULL)
Azure.IoT Build 0:6ae2f7bca550 880 {
AzureIoTClient 19:000ab4e6a2c1 881 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 882 }
Azure.IoT Build 0:6ae2f7bca550 883 else
Azure.IoT Build 0:6ae2f7bca550 884 {
Azure.IoT Build 0:6ae2f7bca550 885 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)session;
Azure.IoT Build 0:6ae2f7bca550 886
Azure.IoT Build 0:6ae2f7bca550 887 session_instance->outgoing_window = outgoing_window;
Azure.IoT Build 0:6ae2f7bca550 888
Azure.IoT Build 0:6ae2f7bca550 889 result = 0;
Azure.IoT Build 0:6ae2f7bca550 890 }
Azure.IoT Build 0:6ae2f7bca550 891
Azure.IoT Build 0:6ae2f7bca550 892 return result;
Azure.IoT Build 0:6ae2f7bca550 893 }
Azure.IoT Build 0:6ae2f7bca550 894
Azure.IoT Build 0:6ae2f7bca550 895 int session_get_outgoing_window(SESSION_HANDLE session, uint32_t* outgoing_window)
Azure.IoT Build 0:6ae2f7bca550 896 {
Azure.IoT Build 0:6ae2f7bca550 897 int result;
Azure.IoT Build 0:6ae2f7bca550 898
Azure.IoT Build 0:6ae2f7bca550 899 if ((session == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 900 (outgoing_window == NULL))
Azure.IoT Build 0:6ae2f7bca550 901 {
AzureIoTClient 19:000ab4e6a2c1 902 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 903 }
Azure.IoT Build 0:6ae2f7bca550 904 else
Azure.IoT Build 0:6ae2f7bca550 905 {
Azure.IoT Build 0:6ae2f7bca550 906 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)session;
Azure.IoT Build 0:6ae2f7bca550 907
Azure.IoT Build 0:6ae2f7bca550 908 *outgoing_window = session_instance->outgoing_window;
Azure.IoT Build 0:6ae2f7bca550 909
Azure.IoT Build 0:6ae2f7bca550 910 result = 0;
Azure.IoT Build 0:6ae2f7bca550 911 }
Azure.IoT Build 0:6ae2f7bca550 912
Azure.IoT Build 0:6ae2f7bca550 913 return result;
Azure.IoT Build 0:6ae2f7bca550 914 }
Azure.IoT Build 0:6ae2f7bca550 915
Azure.IoT Build 0:6ae2f7bca550 916 int session_set_handle_max(SESSION_HANDLE session, handle handle_max)
Azure.IoT Build 0:6ae2f7bca550 917 {
Azure.IoT Build 0:6ae2f7bca550 918 int result;
Azure.IoT Build 0:6ae2f7bca550 919
Azure.IoT Build 0:6ae2f7bca550 920 if (session == NULL)
Azure.IoT Build 0:6ae2f7bca550 921 {
AzureIoTClient 19:000ab4e6a2c1 922 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 923 }
Azure.IoT Build 0:6ae2f7bca550 924 else
Azure.IoT Build 0:6ae2f7bca550 925 {
Azure.IoT Build 0:6ae2f7bca550 926 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)session;
Azure.IoT Build 0:6ae2f7bca550 927
Azure.IoT Build 0:6ae2f7bca550 928 session_instance->handle_max = handle_max;
Azure.IoT Build 0:6ae2f7bca550 929
Azure.IoT Build 0:6ae2f7bca550 930 result = 0;
Azure.IoT Build 0:6ae2f7bca550 931 }
Azure.IoT Build 0:6ae2f7bca550 932
Azure.IoT Build 0:6ae2f7bca550 933 return result;
Azure.IoT Build 0:6ae2f7bca550 934 }
Azure.IoT Build 0:6ae2f7bca550 935
Azure.IoT Build 0:6ae2f7bca550 936 int session_get_handle_max(SESSION_HANDLE session, handle* handle_max)
Azure.IoT Build 0:6ae2f7bca550 937 {
Azure.IoT Build 0:6ae2f7bca550 938 int result;
Azure.IoT Build 0:6ae2f7bca550 939
Azure.IoT Build 0:6ae2f7bca550 940 if ((session == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 941 (handle_max == NULL))
Azure.IoT Build 0:6ae2f7bca550 942 {
AzureIoTClient 19:000ab4e6a2c1 943 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 944 }
Azure.IoT Build 0:6ae2f7bca550 945 else
Azure.IoT Build 0:6ae2f7bca550 946 {
Azure.IoT Build 0:6ae2f7bca550 947 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)session;
Azure.IoT Build 0:6ae2f7bca550 948
Azure.IoT Build 0:6ae2f7bca550 949 *handle_max = session_instance->handle_max;
Azure.IoT Build 0:6ae2f7bca550 950
Azure.IoT Build 0:6ae2f7bca550 951 result = 0;
Azure.IoT Build 0:6ae2f7bca550 952 }
Azure.IoT Build 0:6ae2f7bca550 953
Azure.IoT Build 0:6ae2f7bca550 954 return result;
Azure.IoT Build 0:6ae2f7bca550 955 }
Azure.IoT Build 0:6ae2f7bca550 956
Azure.IoT Build 0:6ae2f7bca550 957 LINK_ENDPOINT_HANDLE session_create_link_endpoint(SESSION_HANDLE session, const char* name)
Azure.IoT Build 0:6ae2f7bca550 958 {
Azure.IoT Build 0:6ae2f7bca550 959 LINK_ENDPOINT_INSTANCE* result;
Azure.IoT Build 0:6ae2f7bca550 960
Azure.IoT Build 0:6ae2f7bca550 961 /* Codes_SRS_SESSION_01_044: [If session, name or frame_received_callback is NULL, session_create_link_endpoint shall fail and return NULL.] */
Azure.IoT Build 0:6ae2f7bca550 962 if ((session == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 963 (name == NULL))
Azure.IoT Build 0:6ae2f7bca550 964 {
Azure.IoT Build 0:6ae2f7bca550 965 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 966 }
Azure.IoT Build 0:6ae2f7bca550 967 else
Azure.IoT Build 0:6ae2f7bca550 968 {
Azure.IoT Build 0:6ae2f7bca550 969 /* Codes_SRS_SESSION_01_043: [session_create_link_endpoint shall create a link endpoint associated with a given session and return a non-NULL handle to it.] */
Azure.IoT Build 0:6ae2f7bca550 970 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)session;
Azure.IoT Build 0:6ae2f7bca550 971
AzureIoTClient 21:f9c433d8e6ca 972 result = (LINK_ENDPOINT_INSTANCE*)malloc(sizeof(LINK_ENDPOINT_INSTANCE));
Azure.IoT Build 0:6ae2f7bca550 973 /* Codes_SRS_SESSION_01_045: [If allocating memory for the link endpoint fails, session_create_link_endpoint shall fail and return NULL.] */
Azure.IoT Build 0:6ae2f7bca550 974 if (result != NULL)
Azure.IoT Build 0:6ae2f7bca550 975 {
Azure.IoT Build 0:6ae2f7bca550 976 /* Codes_SRS_SESSION_01_046: [An unused handle shall be assigned to the link endpoint.] */
Azure.IoT Build 0:6ae2f7bca550 977 handle selected_handle = 0;
Azure.IoT Build 0:6ae2f7bca550 978 size_t i;
AzureIoTClient 23:1111ee8bcba4 979 size_t name_length;
Azure.IoT Build 0:6ae2f7bca550 980
Azure.IoT Build 0:6ae2f7bca550 981 for (i = 0; i < session_instance->link_endpoint_count; i++)
Azure.IoT Build 0:6ae2f7bca550 982 {
Azure.IoT Build 0:6ae2f7bca550 983 if (session_instance->link_endpoints[i]->output_handle > selected_handle)
Azure.IoT Build 0:6ae2f7bca550 984 {
Azure.IoT Build 0:6ae2f7bca550 985 break;
Azure.IoT Build 0:6ae2f7bca550 986 }
Azure.IoT Build 0:6ae2f7bca550 987
Azure.IoT Build 0:6ae2f7bca550 988 selected_handle++;
Azure.IoT Build 0:6ae2f7bca550 989 }
Azure.IoT Build 0:6ae2f7bca550 990
Azure.IoT Build 0:6ae2f7bca550 991 result->on_session_state_changed = NULL;
Azure.IoT Build 0:6ae2f7bca550 992 result->on_session_flow_on = NULL;
Azure.IoT Build 0:6ae2f7bca550 993 result->frame_received_callback = NULL;
Azure.IoT Build 0:6ae2f7bca550 994 result->callback_context = NULL;
Azure.IoT Build 0:6ae2f7bca550 995 result->output_handle = selected_handle;
AzureIoTClient 13:9abd748f4e78 996 result->input_handle = 0xFFFFFFFF;
AzureIoTClient 23:1111ee8bcba4 997 name_length = strlen(name);
AzureIoTClient 23:1111ee8bcba4 998 result->name = (char*)malloc(name_length + 1);
Azure.IoT Build 0:6ae2f7bca550 999 if (result->name == NULL)
Azure.IoT Build 0:6ae2f7bca550 1000 {
Azure.IoT Build 0:6ae2f7bca550 1001 /* Codes_SRS_SESSION_01_045: [If allocating memory for the link endpoint fails, session_create_link_endpoint shall fail and return NULL.] */
AzureIoTClient 21:f9c433d8e6ca 1002 free(result);
Azure.IoT Build 0:6ae2f7bca550 1003 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 1004 }
Azure.IoT Build 0:6ae2f7bca550 1005 else
Azure.IoT Build 0:6ae2f7bca550 1006 {
Azure.IoT Build 0:6ae2f7bca550 1007 LINK_ENDPOINT_INSTANCE** new_link_endpoints;
AzureIoTClient 23:1111ee8bcba4 1008 (void)memcpy(result->name, name, name_length + 1);
Azure.IoT Build 0:6ae2f7bca550 1009 result->session = session;
Azure.IoT Build 0:6ae2f7bca550 1010
AzureIoTClient 23:1111ee8bcba4 1011 new_link_endpoints = (LINK_ENDPOINT_INSTANCE**)realloc(session_instance->link_endpoints, sizeof(LINK_ENDPOINT_INSTANCE*) * (session_instance->link_endpoint_count + 1));
Azure.IoT Build 0:6ae2f7bca550 1012 if (new_link_endpoints == NULL)
Azure.IoT Build 0:6ae2f7bca550 1013 {
Azure.IoT Build 0:6ae2f7bca550 1014 /* Codes_SRS_SESSION_01_045: [If allocating memory for the link endpoint fails, session_create_link_endpoint shall fail and return NULL.] */
AzureIoTClient 21:f9c433d8e6ca 1015 free(result->name);
AzureIoTClient 21:f9c433d8e6ca 1016 free(result);
Azure.IoT Build 0:6ae2f7bca550 1017 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 1018 }
Azure.IoT Build 0:6ae2f7bca550 1019 else
Azure.IoT Build 0:6ae2f7bca550 1020 {
Azure.IoT Build 0:6ae2f7bca550 1021 session_instance->link_endpoints = new_link_endpoints;
Azure.IoT Build 0:6ae2f7bca550 1022
Azure.IoT Build 0:6ae2f7bca550 1023 if (session_instance->link_endpoint_count - selected_handle > 0)
Azure.IoT Build 0:6ae2f7bca550 1024 {
AzureIoTClient 7:9e9ab3b0efef 1025 (void)memmove(&session_instance->link_endpoints[selected_handle + 1], &session_instance->link_endpoints[selected_handle], (session_instance->link_endpoint_count - selected_handle) * sizeof(LINK_ENDPOINT_INSTANCE*));
Azure.IoT Build 0:6ae2f7bca550 1026 }
Azure.IoT Build 0:6ae2f7bca550 1027
Azure.IoT Build 0:6ae2f7bca550 1028 session_instance->link_endpoints[selected_handle] = result;
Azure.IoT Build 0:6ae2f7bca550 1029 session_instance->link_endpoint_count++;
Azure.IoT Build 0:6ae2f7bca550 1030 }
Azure.IoT Build 0:6ae2f7bca550 1031 }
Azure.IoT Build 0:6ae2f7bca550 1032 }
Azure.IoT Build 0:6ae2f7bca550 1033 }
Azure.IoT Build 0:6ae2f7bca550 1034
Azure.IoT Build 0:6ae2f7bca550 1035 return result;
Azure.IoT Build 0:6ae2f7bca550 1036 }
Azure.IoT Build 0:6ae2f7bca550 1037
Azure.IoT Build 0:6ae2f7bca550 1038 void session_destroy_link_endpoint(LINK_ENDPOINT_HANDLE link_endpoint)
Azure.IoT Build 0:6ae2f7bca550 1039 {
Azure.IoT Build 0:6ae2f7bca550 1040 /* Codes_SRS_SESSION_01_050: [If link_endpoint is NULL, session_destroy_link_endpoint shall do nothing.] */
Azure.IoT Build 0:6ae2f7bca550 1041 if (link_endpoint != NULL)
Azure.IoT Build 0:6ae2f7bca550 1042 {
Azure.IoT Build 0:6ae2f7bca550 1043 LINK_ENDPOINT_INSTANCE* endpoint_instance = (LINK_ENDPOINT_INSTANCE*)link_endpoint;
Azure.IoT Build 0:6ae2f7bca550 1044 SESSION_INSTANCE* session_instance = endpoint_instance->session;
Azure.IoT Build 0:6ae2f7bca550 1045 uint64_t i;
Azure.IoT Build 0:6ae2f7bca550 1046
Azure.IoT Build 0:6ae2f7bca550 1047 /* Codes_SRS_SESSION_01_049: [session_destroy_link_endpoint shall free all resources associated with the endpoint.] */
Azure.IoT Build 0:6ae2f7bca550 1048 for (i = 0; i < session_instance->link_endpoint_count; i++)
Azure.IoT Build 0:6ae2f7bca550 1049 {
Azure.IoT Build 0:6ae2f7bca550 1050 if (session_instance->link_endpoints[i] == link_endpoint)
Azure.IoT Build 0:6ae2f7bca550 1051 {
Azure.IoT Build 0:6ae2f7bca550 1052 break;
Azure.IoT Build 0:6ae2f7bca550 1053 }
Azure.IoT Build 0:6ae2f7bca550 1054 }
Azure.IoT Build 0:6ae2f7bca550 1055
Azure.IoT Build 0:6ae2f7bca550 1056 if (i < session_instance->link_endpoint_count)
Azure.IoT Build 0:6ae2f7bca550 1057 {
Azure.IoT Build 0:6ae2f7bca550 1058 LINK_ENDPOINT_INSTANCE** new_endpoints;
Azure.IoT Build 0:6ae2f7bca550 1059
AzureIoTClient 12:b30dacf113f2 1060 if (i < (session_instance->link_endpoint_count - 1))
AzureIoTClient 12:b30dacf113f2 1061 {
AzureIoTClient 7:9e9ab3b0efef 1062 (void)memmove(&session_instance->link_endpoints[i], &session_instance->link_endpoints[i + 1], (session_instance->link_endpoint_count - (uint32_t)i - 1) * sizeof(LINK_ENDPOINT_INSTANCE*));
AzureIoTClient 7:9e9ab3b0efef 1063 }
AzureIoTClient 7:9e9ab3b0efef 1064
Azure.IoT Build 0:6ae2f7bca550 1065 session_instance->link_endpoint_count--;
Azure.IoT Build 0:6ae2f7bca550 1066
Azure.IoT Build 0:6ae2f7bca550 1067 if (session_instance->link_endpoint_count == 0)
Azure.IoT Build 0:6ae2f7bca550 1068 {
AzureIoTClient 21:f9c433d8e6ca 1069 free(session_instance->link_endpoints);
Azure.IoT Build 0:6ae2f7bca550 1070 session_instance->link_endpoints = NULL;
Azure.IoT Build 0:6ae2f7bca550 1071 }
Azure.IoT Build 0:6ae2f7bca550 1072 else
Azure.IoT Build 0:6ae2f7bca550 1073 {
AzureIoTClient 21:f9c433d8e6ca 1074 new_endpoints = (LINK_ENDPOINT_INSTANCE**)realloc(session_instance->link_endpoints, sizeof(LINK_ENDPOINT_INSTANCE*) * session_instance->link_endpoint_count);
Azure.IoT Build 0:6ae2f7bca550 1075 if (new_endpoints != NULL)
Azure.IoT Build 0:6ae2f7bca550 1076 {
Azure.IoT Build 0:6ae2f7bca550 1077 session_instance->link_endpoints = new_endpoints;
Azure.IoT Build 0:6ae2f7bca550 1078 }
Azure.IoT Build 0:6ae2f7bca550 1079 }
Azure.IoT Build 0:6ae2f7bca550 1080 }
Azure.IoT Build 0:6ae2f7bca550 1081
Azure.IoT Build 0:6ae2f7bca550 1082 if (endpoint_instance->name != NULL)
Azure.IoT Build 0:6ae2f7bca550 1083 {
AzureIoTClient 21:f9c433d8e6ca 1084 free(endpoint_instance->name);
Azure.IoT Build 0:6ae2f7bca550 1085 }
Azure.IoT Build 0:6ae2f7bca550 1086
AzureIoTClient 21:f9c433d8e6ca 1087 free(endpoint_instance);
Azure.IoT Build 0:6ae2f7bca550 1088 }
Azure.IoT Build 0:6ae2f7bca550 1089 }
Azure.IoT Build 0:6ae2f7bca550 1090
Azure.IoT Build 0:6ae2f7bca550 1091 int session_start_link_endpoint(LINK_ENDPOINT_HANDLE link_endpoint, ON_ENDPOINT_FRAME_RECEIVED frame_received_callback, ON_SESSION_STATE_CHANGED on_session_state_changed, ON_SESSION_FLOW_ON on_session_flow_on, void* context)
Azure.IoT Build 0:6ae2f7bca550 1092 {
Azure.IoT Build 0:6ae2f7bca550 1093 int result;
Azure.IoT Build 0:6ae2f7bca550 1094
Azure.IoT Build 0:6ae2f7bca550 1095 if ((link_endpoint == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 1096 (frame_received_callback == NULL))
Azure.IoT Build 0:6ae2f7bca550 1097 {
AzureIoTClient 19:000ab4e6a2c1 1098 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1099 }
Azure.IoT Build 0:6ae2f7bca550 1100 else
Azure.IoT Build 0:6ae2f7bca550 1101 {
Azure.IoT Build 0:6ae2f7bca550 1102 link_endpoint->frame_received_callback = frame_received_callback;
Azure.IoT Build 0:6ae2f7bca550 1103 link_endpoint->on_session_state_changed = on_session_state_changed;
Azure.IoT Build 0:6ae2f7bca550 1104 link_endpoint->on_session_flow_on = on_session_flow_on;
Azure.IoT Build 0:6ae2f7bca550 1105 link_endpoint->callback_context = context;
Azure.IoT Build 0:6ae2f7bca550 1106
Azure.IoT Build 0:6ae2f7bca550 1107 if (link_endpoint->on_session_state_changed != NULL)
Azure.IoT Build 0:6ae2f7bca550 1108 {
Azure.IoT Build 0:6ae2f7bca550 1109 link_endpoint->on_session_state_changed(link_endpoint->callback_context, link_endpoint->session->session_state, link_endpoint->session->previous_session_state);
Azure.IoT Build 0:6ae2f7bca550 1110 }
Azure.IoT Build 0:6ae2f7bca550 1111
Azure.IoT Build 0:6ae2f7bca550 1112 result = 0;
Azure.IoT Build 0:6ae2f7bca550 1113 }
Azure.IoT Build 0:6ae2f7bca550 1114
Azure.IoT Build 0:6ae2f7bca550 1115 return result;
Azure.IoT Build 0:6ae2f7bca550 1116 }
Azure.IoT Build 0:6ae2f7bca550 1117
Azure.IoT Build 0:6ae2f7bca550 1118 static int encode_frame(LINK_ENDPOINT_HANDLE link_endpoint, const AMQP_VALUE performative, PAYLOAD* payloads, size_t payload_count)
Azure.IoT Build 0:6ae2f7bca550 1119 {
Azure.IoT Build 0:6ae2f7bca550 1120 int result;
Azure.IoT Build 0:6ae2f7bca550 1121
Azure.IoT Build 0:6ae2f7bca550 1122 if ((link_endpoint == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 1123 (performative == NULL))
Azure.IoT Build 0:6ae2f7bca550 1124 {
AzureIoTClient 19:000ab4e6a2c1 1125 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1126 }
Azure.IoT Build 0:6ae2f7bca550 1127 else
Azure.IoT Build 0:6ae2f7bca550 1128 {
Azure.IoT Build 0:6ae2f7bca550 1129 LINK_ENDPOINT_INSTANCE* link_endpoint_instance = (LINK_ENDPOINT_INSTANCE*)link_endpoint;
Azure.IoT Build 0:6ae2f7bca550 1130 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)link_endpoint_instance->session;
Azure.IoT Build 0:6ae2f7bca550 1131
Azure.IoT Build 0:6ae2f7bca550 1132 if (connection_encode_frame(session_instance->endpoint, performative, payloads, payload_count, NULL, NULL) != 0)
Azure.IoT Build 0:6ae2f7bca550 1133 {
AzureIoTClient 19:000ab4e6a2c1 1134 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1135 }
Azure.IoT Build 0:6ae2f7bca550 1136 else
Azure.IoT Build 0:6ae2f7bca550 1137 {
Azure.IoT Build 0:6ae2f7bca550 1138 result = 0;
Azure.IoT Build 0:6ae2f7bca550 1139 }
Azure.IoT Build 0:6ae2f7bca550 1140 }
Azure.IoT Build 0:6ae2f7bca550 1141
Azure.IoT Build 0:6ae2f7bca550 1142 return result;
Azure.IoT Build 0:6ae2f7bca550 1143 }
Azure.IoT Build 0:6ae2f7bca550 1144
Azure.IoT Build 0:6ae2f7bca550 1145 int session_send_flow(LINK_ENDPOINT_HANDLE link_endpoint, FLOW_HANDLE flow)
Azure.IoT Build 0:6ae2f7bca550 1146 {
Azure.IoT Build 0:6ae2f7bca550 1147 int result;
Azure.IoT Build 0:6ae2f7bca550 1148
Azure.IoT Build 0:6ae2f7bca550 1149 if ((link_endpoint == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 1150 (flow == NULL))
Azure.IoT Build 0:6ae2f7bca550 1151 {
AzureIoTClient 19:000ab4e6a2c1 1152 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1153 }
Azure.IoT Build 0:6ae2f7bca550 1154 else
Azure.IoT Build 0:6ae2f7bca550 1155 {
Azure.IoT Build 0:6ae2f7bca550 1156 LINK_ENDPOINT_INSTANCE* link_endpoint_instance = (LINK_ENDPOINT_INSTANCE*)link_endpoint;
Azure.IoT Build 0:6ae2f7bca550 1157 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)link_endpoint_instance->session;
Azure.IoT Build 0:6ae2f7bca550 1158
Azure.IoT Build 0:6ae2f7bca550 1159 result = 0;
Azure.IoT Build 0:6ae2f7bca550 1160
Azure.IoT Build 0:6ae2f7bca550 1161 if (session_instance->session_state == SESSION_STATE_BEGIN_RCVD)
Azure.IoT Build 0:6ae2f7bca550 1162 {
Azure.IoT Build 0:6ae2f7bca550 1163 if (flow_set_next_incoming_id(flow, session_instance->next_incoming_id) != 0)
Azure.IoT Build 0:6ae2f7bca550 1164 {
AzureIoTClient 19:000ab4e6a2c1 1165 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1166 }
Azure.IoT Build 0:6ae2f7bca550 1167 }
Azure.IoT Build 0:6ae2f7bca550 1168
Azure.IoT Build 0:6ae2f7bca550 1169 if (result == 0)
Azure.IoT Build 0:6ae2f7bca550 1170 {
AzureIoTClient 12:b30dacf113f2 1171 if ((flow_set_next_incoming_id(flow, session_instance->next_incoming_id) != 0) ||
AzureIoTClient 12:b30dacf113f2 1172 (flow_set_incoming_window(flow, session_instance->incoming_window) != 0) ||
AzureIoTClient 12:b30dacf113f2 1173 (flow_set_next_outgoing_id(flow, session_instance->next_outgoing_id) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 1174 (flow_set_outgoing_window(flow, session_instance->outgoing_window) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 1175 (flow_set_handle(flow, link_endpoint_instance->output_handle) != 0))
Azure.IoT Build 0:6ae2f7bca550 1176 {
AzureIoTClient 19:000ab4e6a2c1 1177 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1178 }
Azure.IoT Build 0:6ae2f7bca550 1179 else
Azure.IoT Build 0:6ae2f7bca550 1180 {
Azure.IoT Build 0:6ae2f7bca550 1181 AMQP_VALUE flow_performative_value = amqpvalue_create_flow(flow);
Azure.IoT Build 0:6ae2f7bca550 1182 if (flow_performative_value == NULL)
Azure.IoT Build 0:6ae2f7bca550 1183 {
AzureIoTClient 19:000ab4e6a2c1 1184 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1185 }
Azure.IoT Build 0:6ae2f7bca550 1186 else
Azure.IoT Build 0:6ae2f7bca550 1187 {
Azure.IoT Build 0:6ae2f7bca550 1188 if (encode_frame(link_endpoint, flow_performative_value, NULL, 0) != 0)
Azure.IoT Build 0:6ae2f7bca550 1189 {
AzureIoTClient 19:000ab4e6a2c1 1190 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1191 }
Azure.IoT Build 0:6ae2f7bca550 1192 else
Azure.IoT Build 0:6ae2f7bca550 1193 {
Azure.IoT Build 0:6ae2f7bca550 1194 result = 0;
Azure.IoT Build 0:6ae2f7bca550 1195 }
Azure.IoT Build 0:6ae2f7bca550 1196
Azure.IoT Build 0:6ae2f7bca550 1197 amqpvalue_destroy(flow_performative_value);
Azure.IoT Build 0:6ae2f7bca550 1198 }
Azure.IoT Build 0:6ae2f7bca550 1199 }
Azure.IoT Build 0:6ae2f7bca550 1200 }
Azure.IoT Build 0:6ae2f7bca550 1201 }
Azure.IoT Build 0:6ae2f7bca550 1202
Azure.IoT Build 0:6ae2f7bca550 1203 return result;
Azure.IoT Build 0:6ae2f7bca550 1204 }
Azure.IoT Build 0:6ae2f7bca550 1205
Azure.IoT Build 0:6ae2f7bca550 1206 int session_send_attach(LINK_ENDPOINT_HANDLE link_endpoint, ATTACH_HANDLE attach)
Azure.IoT Build 0:6ae2f7bca550 1207 {
Azure.IoT Build 0:6ae2f7bca550 1208 int result;
Azure.IoT Build 0:6ae2f7bca550 1209
Azure.IoT Build 0:6ae2f7bca550 1210 if ((link_endpoint == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 1211 (attach == NULL))
Azure.IoT Build 0:6ae2f7bca550 1212 {
AzureIoTClient 19:000ab4e6a2c1 1213 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1214 }
Azure.IoT Build 0:6ae2f7bca550 1215 else
Azure.IoT Build 0:6ae2f7bca550 1216 {
Azure.IoT Build 0:6ae2f7bca550 1217 LINK_ENDPOINT_INSTANCE* link_endpoint_instance = (LINK_ENDPOINT_INSTANCE*)link_endpoint;
Azure.IoT Build 0:6ae2f7bca550 1218
Azure.IoT Build 0:6ae2f7bca550 1219 if (attach_set_handle(attach, link_endpoint_instance->output_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 1220 {
AzureIoTClient 19:000ab4e6a2c1 1221 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1222 }
Azure.IoT Build 0:6ae2f7bca550 1223 else
Azure.IoT Build 0:6ae2f7bca550 1224 {
Azure.IoT Build 0:6ae2f7bca550 1225 AMQP_VALUE attach_performative_value = amqpvalue_create_attach(attach);
Azure.IoT Build 0:6ae2f7bca550 1226 if (attach_performative_value == NULL)
Azure.IoT Build 0:6ae2f7bca550 1227 {
AzureIoTClient 19:000ab4e6a2c1 1228 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1229 }
Azure.IoT Build 0:6ae2f7bca550 1230 else
Azure.IoT Build 0:6ae2f7bca550 1231 {
Azure.IoT Build 0:6ae2f7bca550 1232 if (encode_frame(link_endpoint, attach_performative_value, NULL, 0) != 0)
Azure.IoT Build 0:6ae2f7bca550 1233 {
AzureIoTClient 19:000ab4e6a2c1 1234 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1235 }
Azure.IoT Build 0:6ae2f7bca550 1236 else
Azure.IoT Build 0:6ae2f7bca550 1237 {
Azure.IoT Build 0:6ae2f7bca550 1238 result = 0;
Azure.IoT Build 0:6ae2f7bca550 1239 }
Azure.IoT Build 0:6ae2f7bca550 1240
Azure.IoT Build 0:6ae2f7bca550 1241 amqpvalue_destroy(attach_performative_value);
Azure.IoT Build 0:6ae2f7bca550 1242 }
Azure.IoT Build 0:6ae2f7bca550 1243 }
Azure.IoT Build 0:6ae2f7bca550 1244 }
Azure.IoT Build 0:6ae2f7bca550 1245
Azure.IoT Build 0:6ae2f7bca550 1246 return result;
Azure.IoT Build 0:6ae2f7bca550 1247 }
Azure.IoT Build 0:6ae2f7bca550 1248
Azure.IoT Build 0:6ae2f7bca550 1249 int session_send_disposition(LINK_ENDPOINT_HANDLE link_endpoint, DISPOSITION_HANDLE disposition)
Azure.IoT Build 0:6ae2f7bca550 1250 {
Azure.IoT Build 0:6ae2f7bca550 1251 int result;
Azure.IoT Build 0:6ae2f7bca550 1252
Azure.IoT Build 0:6ae2f7bca550 1253 if ((link_endpoint == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 1254 (disposition == NULL))
Azure.IoT Build 0:6ae2f7bca550 1255 {
AzureIoTClient 19:000ab4e6a2c1 1256 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1257 }
Azure.IoT Build 0:6ae2f7bca550 1258 else
Azure.IoT Build 0:6ae2f7bca550 1259 {
Azure.IoT Build 0:6ae2f7bca550 1260 AMQP_VALUE disposition_performative_value = amqpvalue_create_disposition(disposition);
Azure.IoT Build 0:6ae2f7bca550 1261 if (disposition_performative_value == NULL)
Azure.IoT Build 0:6ae2f7bca550 1262 {
AzureIoTClient 19:000ab4e6a2c1 1263 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1264 }
Azure.IoT Build 0:6ae2f7bca550 1265 else
Azure.IoT Build 0:6ae2f7bca550 1266 {
Azure.IoT Build 0:6ae2f7bca550 1267 if (encode_frame(link_endpoint, disposition_performative_value, NULL, 0) != 0)
Azure.IoT Build 0:6ae2f7bca550 1268 {
AzureIoTClient 19:000ab4e6a2c1 1269 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1270 }
Azure.IoT Build 0:6ae2f7bca550 1271 else
Azure.IoT Build 0:6ae2f7bca550 1272 {
Azure.IoT Build 0:6ae2f7bca550 1273 result = 0;
Azure.IoT Build 0:6ae2f7bca550 1274 }
Azure.IoT Build 0:6ae2f7bca550 1275
Azure.IoT Build 0:6ae2f7bca550 1276 amqpvalue_destroy(disposition_performative_value);
Azure.IoT Build 0:6ae2f7bca550 1277 }
Azure.IoT Build 0:6ae2f7bca550 1278 }
Azure.IoT Build 0:6ae2f7bca550 1279
Azure.IoT Build 0:6ae2f7bca550 1280 return result;
Azure.IoT Build 0:6ae2f7bca550 1281 }
Azure.IoT Build 0:6ae2f7bca550 1282
Azure.IoT Build 0:6ae2f7bca550 1283 int session_send_detach(LINK_ENDPOINT_HANDLE link_endpoint, DETACH_HANDLE detach)
Azure.IoT Build 0:6ae2f7bca550 1284 {
Azure.IoT Build 0:6ae2f7bca550 1285 int result;
Azure.IoT Build 0:6ae2f7bca550 1286
Azure.IoT Build 0:6ae2f7bca550 1287 if ((link_endpoint == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 1288 (detach == NULL))
Azure.IoT Build 0:6ae2f7bca550 1289 {
AzureIoTClient 19:000ab4e6a2c1 1290 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1291 }
Azure.IoT Build 0:6ae2f7bca550 1292 else
Azure.IoT Build 0:6ae2f7bca550 1293 {
Azure.IoT Build 0:6ae2f7bca550 1294 LINK_ENDPOINT_INSTANCE* link_endpoint_instance = (LINK_ENDPOINT_INSTANCE*)link_endpoint;
Azure.IoT Build 0:6ae2f7bca550 1295
Azure.IoT Build 0:6ae2f7bca550 1296 if (detach_set_handle(detach, link_endpoint_instance->output_handle) != 0)
Azure.IoT Build 0:6ae2f7bca550 1297 {
AzureIoTClient 19:000ab4e6a2c1 1298 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1299 }
Azure.IoT Build 0:6ae2f7bca550 1300 else
Azure.IoT Build 0:6ae2f7bca550 1301 {
Azure.IoT Build 0:6ae2f7bca550 1302 AMQP_VALUE detach_performative_value = amqpvalue_create_detach(detach);
Azure.IoT Build 0:6ae2f7bca550 1303 if (detach_performative_value == NULL)
Azure.IoT Build 0:6ae2f7bca550 1304 {
AzureIoTClient 19:000ab4e6a2c1 1305 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1306 }
Azure.IoT Build 0:6ae2f7bca550 1307 else
Azure.IoT Build 0:6ae2f7bca550 1308 {
Azure.IoT Build 0:6ae2f7bca550 1309 if (encode_frame(link_endpoint, detach_performative_value, NULL, 0) != 0)
Azure.IoT Build 0:6ae2f7bca550 1310 {
AzureIoTClient 19:000ab4e6a2c1 1311 result = __FAILURE__;
Azure.IoT Build 0:6ae2f7bca550 1312 }
Azure.IoT Build 0:6ae2f7bca550 1313 else
Azure.IoT Build 0:6ae2f7bca550 1314 {
Azure.IoT Build 0:6ae2f7bca550 1315 result = 0;
Azure.IoT Build 0:6ae2f7bca550 1316 }
Azure.IoT Build 0:6ae2f7bca550 1317
Azure.IoT Build 0:6ae2f7bca550 1318 amqpvalue_destroy(detach_performative_value);
Azure.IoT Build 0:6ae2f7bca550 1319 }
Azure.IoT Build 0:6ae2f7bca550 1320 }
Azure.IoT Build 0:6ae2f7bca550 1321 }
Azure.IoT Build 0:6ae2f7bca550 1322
Azure.IoT Build 0:6ae2f7bca550 1323 return result;
Azure.IoT Build 0:6ae2f7bca550 1324 }
Azure.IoT Build 0:6ae2f7bca550 1325
Azure.IoT Build 0:6ae2f7bca550 1326 /* Codes_SRS_SESSION_01_051: [session_send_transfer shall send a transfer frame with the performative indicated in the transfer argument.] */
Azure.IoT Build 0:6ae2f7bca550 1327 SESSION_SEND_TRANSFER_RESULT session_send_transfer(LINK_ENDPOINT_HANDLE link_endpoint, TRANSFER_HANDLE transfer, PAYLOAD* payloads, size_t payload_count, delivery_number* delivery_id, ON_SEND_COMPLETE on_send_complete, void* callback_context)
Azure.IoT Build 0:6ae2f7bca550 1328 {
Azure.IoT Build 0:6ae2f7bca550 1329 SESSION_SEND_TRANSFER_RESULT result;
Azure.IoT Build 0:6ae2f7bca550 1330
Azure.IoT Build 0:6ae2f7bca550 1331 /* Codes_SRS_SESSION_01_054: [If link_endpoint or transfer is NULL, session_send_transfer shall fail and return a non-zero value.] */
Azure.IoT Build 0:6ae2f7bca550 1332 if ((link_endpoint == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 1333 (transfer == NULL))
Azure.IoT Build 0:6ae2f7bca550 1334 {
Azure.IoT Build 0:6ae2f7bca550 1335 result = SESSION_SEND_TRANSFER_ERROR;
Azure.IoT Build 0:6ae2f7bca550 1336 }
Azure.IoT Build 0:6ae2f7bca550 1337 else
Azure.IoT Build 0:6ae2f7bca550 1338 {
Azure.IoT Build 0:6ae2f7bca550 1339 LINK_ENDPOINT_INSTANCE* link_endpoint_instance = (LINK_ENDPOINT_INSTANCE*)link_endpoint;
Azure.IoT Build 0:6ae2f7bca550 1340 SESSION_INSTANCE* session_instance = (SESSION_INSTANCE*)link_endpoint_instance->session;
Azure.IoT Build 0:6ae2f7bca550 1341
Azure.IoT Build 0:6ae2f7bca550 1342 /* Codes_SRS_SESSION_01_059: [When session_send_transfer is called while the session is not in the MAPPED state, session_send_transfer shall fail and return a non-zero value.] */
Azure.IoT Build 0:6ae2f7bca550 1343 if (session_instance->session_state != SESSION_STATE_MAPPED)
Azure.IoT Build 0:6ae2f7bca550 1344 {
Azure.IoT Build 0:6ae2f7bca550 1345 result = SESSION_SEND_TRANSFER_ERROR;
Azure.IoT Build 0:6ae2f7bca550 1346 }
Azure.IoT Build 0:6ae2f7bca550 1347 else
Azure.IoT Build 0:6ae2f7bca550 1348 {
AzureIoTClient 6:641a9672db08 1349 size_t payload_size = 0;
Azure.IoT Build 0:6ae2f7bca550 1350 size_t i;
Azure.IoT Build 0:6ae2f7bca550 1351
Azure.IoT Build 0:6ae2f7bca550 1352 for (i = 0; i < payload_count; i++)
Azure.IoT Build 0:6ae2f7bca550 1353 {
AzureIoTClient 6:641a9672db08 1354 if ((payloads[i].length > UINT32_MAX) ||
AzureIoTClient 6:641a9672db08 1355 (payload_size + payloads[i].length < payload_size))
AzureIoTClient 6:641a9672db08 1356 {
AzureIoTClient 6:641a9672db08 1357 break;
AzureIoTClient 6:641a9672db08 1358 }
AzureIoTClient 6:641a9672db08 1359
AzureIoTClient 6:641a9672db08 1360 payload_size += payloads[i].length;
AzureIoTClient 6:641a9672db08 1361 }
Azure.IoT Build 0:6ae2f7bca550 1362
AzureIoTClient 6:641a9672db08 1363 if ((i < payload_count) ||
AzureIoTClient 6:641a9672db08 1364 (payload_size > UINT32_MAX))
AzureIoTClient 6:641a9672db08 1365 {
AzureIoTClient 6:641a9672db08 1366 result = SESSION_SEND_TRANSFER_ERROR;
AzureIoTClient 6:641a9672db08 1367 }
AzureIoTClient 6:641a9672db08 1368 else
AzureIoTClient 6:641a9672db08 1369 {
AzureIoTClient 6:641a9672db08 1370 if (session_instance->remote_incoming_window == 0)
AzureIoTClient 6:641a9672db08 1371 {
AzureIoTClient 6:641a9672db08 1372 result = SESSION_SEND_TRANSFER_BUSY;
AzureIoTClient 6:641a9672db08 1373 }
AzureIoTClient 6:641a9672db08 1374 else
AzureIoTClient 6:641a9672db08 1375 {
AzureIoTClient 6:641a9672db08 1376 /* Codes_SRS_SESSION_01_012: [The session endpoint assigns each outgoing transfer frame an implicit transfer-id from a session scoped sequence.] */
AzureIoTClient 6:641a9672db08 1377 /* Codes_SRS_SESSION_01_027: [sending a transfer Upon sending a transfer, the sending endpoint will increment its next-outgoing-id] */
AzureIoTClient 6:641a9672db08 1378 *delivery_id = session_instance->next_outgoing_id;
AzureIoTClient 6:641a9672db08 1379 if ((transfer_set_handle(transfer, link_endpoint_instance->output_handle) != 0) ||
AzureIoTClient 6:641a9672db08 1380 (transfer_set_delivery_id(transfer, *delivery_id) != 0) ||
AzureIoTClient 6:641a9672db08 1381 (transfer_set_more(transfer, false) != 0))
AzureIoTClient 6:641a9672db08 1382 {
AzureIoTClient 6:641a9672db08 1383 /* Codes_SRS_SESSION_01_058: [When any other error occurs, session_send_transfer shall fail and return a non-zero value.] */
AzureIoTClient 6:641a9672db08 1384 result = SESSION_SEND_TRANSFER_ERROR;
AzureIoTClient 6:641a9672db08 1385 }
AzureIoTClient 6:641a9672db08 1386 else
AzureIoTClient 6:641a9672db08 1387 {
AzureIoTClient 6:641a9672db08 1388 AMQP_VALUE transfer_value;
Azure.IoT Build 0:6ae2f7bca550 1389
AzureIoTClient 6:641a9672db08 1390 transfer_value = amqpvalue_create_transfer(transfer);
AzureIoTClient 6:641a9672db08 1391 if (transfer_value == NULL)
AzureIoTClient 6:641a9672db08 1392 {
AzureIoTClient 6:641a9672db08 1393 /* Codes_SRS_SESSION_01_058: [When any other error occurs, session_send_transfer shall fail and return a non-zero value.] */
AzureIoTClient 6:641a9672db08 1394 result = SESSION_SEND_TRANSFER_ERROR;
AzureIoTClient 6:641a9672db08 1395 }
AzureIoTClient 6:641a9672db08 1396 else
AzureIoTClient 6:641a9672db08 1397 {
AzureIoTClient 6:641a9672db08 1398 uint32_t available_frame_size;
AzureIoTClient 6:641a9672db08 1399 size_t encoded_size;
Azure.IoT Build 0:6ae2f7bca550 1400
AzureIoTClient 6:641a9672db08 1401 if ((connection_get_remote_max_frame_size(session_instance->connection, &available_frame_size) != 0) ||
AzureIoTClient 6:641a9672db08 1402 (amqpvalue_get_encoded_size(transfer_value, &encoded_size) != 0))
AzureIoTClient 6:641a9672db08 1403 {
AzureIoTClient 6:641a9672db08 1404 result = SESSION_SEND_TRANSFER_ERROR;
AzureIoTClient 6:641a9672db08 1405 }
AzureIoTClient 6:641a9672db08 1406 else
AzureIoTClient 6:641a9672db08 1407 {
AzureIoTClient 6:641a9672db08 1408 payload_size = 0;
Azure.IoT Build 0:6ae2f7bca550 1409
AzureIoTClient 6:641a9672db08 1410 for (i = 0; i < payload_count; i++)
AzureIoTClient 6:641a9672db08 1411 {
AzureIoTClient 6:641a9672db08 1412 payload_size += payloads[i].length;
AzureIoTClient 6:641a9672db08 1413 }
AzureIoTClient 6:641a9672db08 1414
AzureIoTClient 6:641a9672db08 1415 available_frame_size -= (uint32_t)encoded_size;
AzureIoTClient 6:641a9672db08 1416 available_frame_size -= 8;
Azure.IoT Build 0:6ae2f7bca550 1417
AzureIoTClient 6:641a9672db08 1418 if (available_frame_size >= payload_size)
AzureIoTClient 6:641a9672db08 1419 {
AzureIoTClient 6:641a9672db08 1420 /* Codes_SRS_SESSION_01_055: [The encoding of the frame shall be done by calling connection_encode_frame and passing as arguments: the connection handle associated with the session, the transfer performative and the payload chunks passed to session_send_transfer.] */
AzureIoTClient 6:641a9672db08 1421 if (connection_encode_frame(session_instance->endpoint, transfer_value, payloads, payload_count, on_send_complete, callback_context) != 0)
AzureIoTClient 6:641a9672db08 1422 {
AzureIoTClient 6:641a9672db08 1423 /* Codes_SRS_SESSION_01_056: [If connection_encode_frame fails then session_send_transfer shall fail and return a non-zero value.] */
AzureIoTClient 6:641a9672db08 1424 result = SESSION_SEND_TRANSFER_ERROR;
AzureIoTClient 6:641a9672db08 1425 }
AzureIoTClient 6:641a9672db08 1426 else
AzureIoTClient 6:641a9672db08 1427 {
AzureIoTClient 6:641a9672db08 1428 /* Codes_SRS_SESSION_01_018: [is incremented after each successive transfer according to RFC-1982 [RFC1982] serial number arithmetic.] */
AzureIoTClient 6:641a9672db08 1429 session_instance->next_outgoing_id++;
AzureIoTClient 6:641a9672db08 1430 session_instance->remote_incoming_window--;
AzureIoTClient 6:641a9672db08 1431 session_instance->outgoing_window--;
Azure.IoT Build 0:6ae2f7bca550 1432
AzureIoTClient 6:641a9672db08 1433 /* Codes_SRS_SESSION_01_053: [On success, session_send_transfer shall return 0.] */
AzureIoTClient 6:641a9672db08 1434 result = SESSION_SEND_TRANSFER_OK;
AzureIoTClient 6:641a9672db08 1435 }
AzureIoTClient 6:641a9672db08 1436 }
AzureIoTClient 6:641a9672db08 1437 else
AzureIoTClient 6:641a9672db08 1438 {
AzureIoTClient 6:641a9672db08 1439 size_t current_payload_index = 0;
AzureIoTClient 6:641a9672db08 1440 uint32_t current_payload_pos = 0;
Azure.IoT Build 0:6ae2f7bca550 1441
AzureIoTClient 6:641a9672db08 1442 /* break it down into different deliveries */
AzureIoTClient 6:641a9672db08 1443 while (payload_size > 0)
AzureIoTClient 6:641a9672db08 1444 {
AzureIoTClient 6:641a9672db08 1445 uint32_t transfer_frame_payload_count = 0;
AzureIoTClient 6:641a9672db08 1446 uint32_t current_transfer_frame_payload_size = (uint32_t)payload_size;
AzureIoTClient 6:641a9672db08 1447 uint32_t byte_counter;
AzureIoTClient 6:641a9672db08 1448 size_t temp_current_payload_index = current_payload_index;
AzureIoTClient 6:641a9672db08 1449 uint32_t temp_current_payload_pos = current_payload_pos;
AzureIoTClient 6:641a9672db08 1450 AMQP_VALUE multi_transfer_amqp_value;
AzureIoTClient 25:1101516ee67d 1451 PAYLOAD* transfer_frame_payloads;
AzureIoTClient 6:641a9672db08 1452 bool more;
AzureIoTClient 6:641a9672db08 1453
AzureIoTClient 6:641a9672db08 1454 if (current_transfer_frame_payload_size > available_frame_size)
AzureIoTClient 6:641a9672db08 1455 {
AzureIoTClient 6:641a9672db08 1456 current_transfer_frame_payload_size = available_frame_size;
AzureIoTClient 6:641a9672db08 1457 }
Azure.IoT Build 0:6ae2f7bca550 1458
AzureIoTClient 6:641a9672db08 1459 if (available_frame_size >= payload_size)
AzureIoTClient 6:641a9672db08 1460 {
AzureIoTClient 6:641a9672db08 1461 more = false;
AzureIoTClient 6:641a9672db08 1462 }
AzureIoTClient 6:641a9672db08 1463 else
AzureIoTClient 6:641a9672db08 1464 {
AzureIoTClient 6:641a9672db08 1465 more = true;
AzureIoTClient 6:641a9672db08 1466 }
Azure.IoT Build 0:6ae2f7bca550 1467
AzureIoTClient 6:641a9672db08 1468 if (transfer_set_more(transfer, more) != 0)
AzureIoTClient 6:641a9672db08 1469 {
AzureIoTClient 6:641a9672db08 1470 break;
AzureIoTClient 6:641a9672db08 1471 }
Azure.IoT Build 0:6ae2f7bca550 1472
AzureIoTClient 6:641a9672db08 1473 multi_transfer_amqp_value = amqpvalue_create_transfer(transfer);
AzureIoTClient 6:641a9672db08 1474 if (multi_transfer_amqp_value == NULL)
AzureIoTClient 6:641a9672db08 1475 {
AzureIoTClient 6:641a9672db08 1476 break;
AzureIoTClient 6:641a9672db08 1477 }
Azure.IoT Build 0:6ae2f7bca550 1478
AzureIoTClient 6:641a9672db08 1479 byte_counter = current_transfer_frame_payload_size;
AzureIoTClient 6:641a9672db08 1480 while (byte_counter > 0)
AzureIoTClient 6:641a9672db08 1481 {
AzureIoTClient 6:641a9672db08 1482 if (payloads[temp_current_payload_index].length - temp_current_payload_pos >= byte_counter)
AzureIoTClient 6:641a9672db08 1483 {
AzureIoTClient 6:641a9672db08 1484 /* more data than we need */
AzureIoTClient 6:641a9672db08 1485 temp_current_payload_pos += byte_counter;
AzureIoTClient 6:641a9672db08 1486 byte_counter = 0;
AzureIoTClient 6:641a9672db08 1487 }
AzureIoTClient 6:641a9672db08 1488 else
AzureIoTClient 6:641a9672db08 1489 {
AzureIoTClient 6:641a9672db08 1490 byte_counter -= (uint32_t)payloads[temp_current_payload_index].length - temp_current_payload_pos;
AzureIoTClient 6:641a9672db08 1491 temp_current_payload_index++;
AzureIoTClient 6:641a9672db08 1492 temp_current_payload_pos = 0;
AzureIoTClient 6:641a9672db08 1493 }
AzureIoTClient 6:641a9672db08 1494 }
Azure.IoT Build 0:6ae2f7bca550 1495
AzureIoTClient 6:641a9672db08 1496 transfer_frame_payload_count = (uint32_t)(temp_current_payload_index - current_payload_index + 1);
AzureIoTClient 25:1101516ee67d 1497 transfer_frame_payloads = (PAYLOAD*)malloc(transfer_frame_payload_count * sizeof(PAYLOAD));
AzureIoTClient 6:641a9672db08 1498 if (transfer_frame_payloads == NULL)
AzureIoTClient 6:641a9672db08 1499 {
AzureIoTClient 6:641a9672db08 1500 amqpvalue_destroy(multi_transfer_amqp_value);
AzureIoTClient 6:641a9672db08 1501 break;
AzureIoTClient 6:641a9672db08 1502 }
Azure.IoT Build 0:6ae2f7bca550 1503
AzureIoTClient 6:641a9672db08 1504 /* copy data */
AzureIoTClient 6:641a9672db08 1505 byte_counter = current_transfer_frame_payload_size;
AzureIoTClient 6:641a9672db08 1506 transfer_frame_payload_count = 0;
Azure.IoT Build 0:6ae2f7bca550 1507
AzureIoTClient 6:641a9672db08 1508 while (byte_counter > 0)
AzureIoTClient 6:641a9672db08 1509 {
AzureIoTClient 6:641a9672db08 1510 if (payloads[current_payload_index].length - current_payload_pos > byte_counter)
AzureIoTClient 6:641a9672db08 1511 {
AzureIoTClient 6:641a9672db08 1512 /* more data than we need */
AzureIoTClient 6:641a9672db08 1513 transfer_frame_payloads[transfer_frame_payload_count].bytes = payloads[current_payload_index].bytes + current_payload_pos;
AzureIoTClient 6:641a9672db08 1514 transfer_frame_payloads[transfer_frame_payload_count].length = byte_counter;
AzureIoTClient 6:641a9672db08 1515 current_payload_pos += byte_counter;
AzureIoTClient 6:641a9672db08 1516 byte_counter = 0;
AzureIoTClient 6:641a9672db08 1517 }
AzureIoTClient 6:641a9672db08 1518 else
AzureIoTClient 6:641a9672db08 1519 {
AzureIoTClient 6:641a9672db08 1520 /* copy entire payload and move to the next */
AzureIoTClient 6:641a9672db08 1521 transfer_frame_payloads[transfer_frame_payload_count].bytes = payloads[current_payload_index].bytes + current_payload_pos;
AzureIoTClient 6:641a9672db08 1522 transfer_frame_payloads[transfer_frame_payload_count].length = payloads[current_payload_index].length - current_payload_pos;
AzureIoTClient 6:641a9672db08 1523 byte_counter -= (uint32_t)payloads[current_payload_index].length - current_payload_pos;
AzureIoTClient 6:641a9672db08 1524 current_payload_index++;
AzureIoTClient 6:641a9672db08 1525 current_payload_pos = 0;
AzureIoTClient 6:641a9672db08 1526 }
Azure.IoT Build 0:6ae2f7bca550 1527
AzureIoTClient 6:641a9672db08 1528 transfer_frame_payload_count++;
AzureIoTClient 6:641a9672db08 1529 }
Azure.IoT Build 0:6ae2f7bca550 1530
AzureIoTClient 6:641a9672db08 1531 if (connection_encode_frame(session_instance->endpoint, multi_transfer_amqp_value, transfer_frame_payloads, transfer_frame_payload_count, on_send_complete, callback_context) != 0)
AzureIoTClient 6:641a9672db08 1532 {
AzureIoTClient 21:f9c433d8e6ca 1533 free(transfer_frame_payloads);
AzureIoTClient 6:641a9672db08 1534 amqpvalue_destroy(multi_transfer_amqp_value);
AzureIoTClient 6:641a9672db08 1535 break;
AzureIoTClient 6:641a9672db08 1536 }
Azure.IoT Build 0:6ae2f7bca550 1537
AzureIoTClient 21:f9c433d8e6ca 1538 free(transfer_frame_payloads);
AzureIoTClient 6:641a9672db08 1539 amqpvalue_destroy(multi_transfer_amqp_value);
AzureIoTClient 6:641a9672db08 1540 payload_size -= current_transfer_frame_payload_size;
AzureIoTClient 6:641a9672db08 1541 }
Azure.IoT Build 0:6ae2f7bca550 1542
AzureIoTClient 6:641a9672db08 1543 if (payload_size > 0)
AzureIoTClient 6:641a9672db08 1544 {
AzureIoTClient 6:641a9672db08 1545 result = SESSION_SEND_TRANSFER_ERROR;
AzureIoTClient 6:641a9672db08 1546 }
AzureIoTClient 6:641a9672db08 1547 else
AzureIoTClient 6:641a9672db08 1548 {
AzureIoTClient 6:641a9672db08 1549 /* Codes_SRS_SESSION_01_018: [is incremented after each successive transfer according to RFC-1982 [RFC1982] serial number arithmetic.] */
AzureIoTClient 6:641a9672db08 1550 session_instance->next_outgoing_id++;
AzureIoTClient 6:641a9672db08 1551 session_instance->remote_incoming_window--;
AzureIoTClient 6:641a9672db08 1552 session_instance->outgoing_window--;
Azure.IoT Build 0:6ae2f7bca550 1553
AzureIoTClient 6:641a9672db08 1554 result = SESSION_SEND_TRANSFER_OK;
AzureIoTClient 6:641a9672db08 1555 }
AzureIoTClient 6:641a9672db08 1556 }
AzureIoTClient 6:641a9672db08 1557 }
Azure.IoT Build 0:6ae2f7bca550 1558
AzureIoTClient 6:641a9672db08 1559 amqpvalue_destroy(transfer_value);
AzureIoTClient 6:641a9672db08 1560 }
AzureIoTClient 6:641a9672db08 1561 }
AzureIoTClient 6:641a9672db08 1562 }
AzureIoTClient 6:641a9672db08 1563 }
Azure.IoT Build 0:6ae2f7bca550 1564 }
Azure.IoT Build 0:6ae2f7bca550 1565 }
Azure.IoT Build 0:6ae2f7bca550 1566
Azure.IoT Build 0:6ae2f7bca550 1567 return result;
Azure.IoT Build 0:6ae2f7bca550 1568 }