Azure IoT / azure_uamqp_c

A small memory footprint AMQP implimentation

Dependents:   iothub_client_sample_amqp remote_monitoring simplesample_amqp

session.c@1:eab586236bfe, 2016-04-24 (annotated)

Committer:
AzureIoTClient
Date:
Sun Apr 24 16:40:31 2016 -0700
Revision:
1:eab586236bfe
Parent:
0:6ae2f7bca550
Child:
5:ae49385aff34
1.0.5

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