Azure IoT
A small memory footprint AMQP implimentation
Dependents: iothub_client_sample_amqp remote_monitoring simplesample_amqp
Diff: header_detect_io.c
- Revision:
- 29:4a11413cf217
- Parent:
- 28:add19eb7defa
- Child:
- 30:0407b2db334c
--- a/header_detect_io.c Fri Jun 30 10:41:22 2017 -0700
+++ b/header_detect_io.c Fri Jul 14 16:38:03 2017 -0700
@@ -2,26 +2,48 @@
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
#include <stdlib.h>
+#include <stddef.h>
+#include <stdbool.h>
#include "azure_c_shared_utility/optimize_size.h"
#include "azure_c_shared_utility/gballoc.h"
#include "azure_c_shared_utility/xlogging.h"
+#include "azure_c_shared_utility/singlylinkedlist.h"
#include "azure_uamqp_c/header_detect_io.h"
+#include "azure_uamqp_c/server_protocol_io.h"
+
+static const unsigned char amqp_header_bytes[] = { 'A', 'M', 'Q', 'P', 0, 1, 0, 0 };
+static const unsigned char sasl_amqp_header_bytes[] = { 'A', 'M', 'Q', 'P', 3, 1, 0, 0 };
typedef enum IO_STATE_TAG
{
IO_STATE_NOT_OPEN,
IO_STATE_OPENING_UNDERLYING_IO,
IO_STATE_WAIT_FOR_HEADER,
+ IO_STATE_OPENING_DETECTED_IO,
IO_STATE_OPEN,
IO_STATE_CLOSING,
IO_STATE_ERROR
} IO_STATE;
+typedef struct INTERNAL_HEADER_DETECT_ENTRY_TAG
+{
+ unsigned char* header_bytes;
+ size_t header_size;
+ const IO_INTERFACE_DESCRIPTION* io_interface_description;
+} INTERNAL_HEADER_DETECT_ENTRY;
+
+typedef struct CHAINED_IO_TAG
+{
+ XIO_HANDLE detected_io;
+ ON_BYTES_RECEIVED on_bytes_received;
+ void* on_bytes_received_context;
+} CHAINED_IO;
+
typedef struct HEADER_DETECT_IO_INSTANCE_TAG
{
XIO_HANDLE underlying_io;
+ IO_STATE io_state;
size_t header_pos;
- IO_STATE io_state;
ON_IO_OPEN_COMPLETE on_io_open_complete;
ON_IO_CLOSE_COMPLETE on_io_close_complete;
ON_IO_ERROR on_io_error;
@@ -30,9 +52,49 @@
void* on_io_close_complete_context;
void* on_io_error_context;
void* on_bytes_received_context;
+ INTERNAL_HEADER_DETECT_ENTRY* header_detect_entries;
+ size_t header_detect_entry_count;
+ SINGLYLINKEDLIST_HANDLE chained_io_list;
+ XIO_HANDLE* last_io;
} HEADER_DETECT_IO_INSTANCE;
-static const unsigned char amqp_header[] = { 'A', 'M', 'Q', 'P', 0, 1, 0, 0 };
+static void destroy_io_chain(HEADER_DETECT_IO_INSTANCE* header_detect_io)
+{
+ LIST_ITEM_HANDLE list_item = singlylinkedlist_get_head_item(header_detect_io->chained_io_list);
+ while (list_item != NULL)
+ {
+ CHAINED_IO* chained_io = (CHAINED_IO*)singlylinkedlist_item_get_value(list_item);
+
+ if (singlylinkedlist_remove(header_detect_io->chained_io_list, list_item) != 0)
+ {
+ LogError("Cannot remove detected IO from list");
+ }
+
+ xio_destroy(chained_io->detected_io);
+ free(chained_io);
+
+ list_item = singlylinkedlist_get_head_item(header_detect_io->chained_io_list);
+ }
+
+ header_detect_io->last_io = &header_detect_io->underlying_io;
+}
+
+static void internal_close(HEADER_DETECT_IO_INSTANCE* header_detect_io)
+{
+ // close the last underlying IO (the one that we're talking to)
+ if (xio_close(*header_detect_io->last_io, NULL, NULL) != 0)
+ {
+ LogError("Cannot close underlying IO");
+ }
+
+ destroy_io_chain(header_detect_io);
+
+ header_detect_io->io_state = IO_STATE_NOT_OPEN;
+}
+
+static void on_underlying_io_open_complete(void* context, IO_OPEN_RESULT open_result);
+static void on_underlying_io_bytes_received(void* context, const unsigned char* buffer, size_t size);
+static void on_underlying_io_error(void* context);
static void indicate_error(HEADER_DETECT_IO_INSTANCE* header_detect_io_instance)
{
@@ -58,59 +120,224 @@
}
}
-static void on_underlying_io_error(void* context);
-static void on_send_complete_close(void* context, IO_SEND_RESULT send_result)
+static void on_send_complete(void* context, IO_SEND_RESULT send_result)
{
- (void)send_result;
- on_underlying_io_error(context);
+ // able to send the header
+ HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)context;
+
+ if (send_result != IO_SEND_OK)
+ {
+ // signal error
+ indicate_error(header_detect_io_instance);
+ }
}
static void on_underlying_io_bytes_received(void* context, const unsigned char* buffer, size_t size)
{
- HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)context;
+ if (context == NULL)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_050: [ If `context` is NULL, `on_underlying_io_bytes_received` shall do nothing. ]*/
+ LogError("NULL context");
+ }
+ else
+ {
+ HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)context;
- while (size > 0)
- {
- switch (header_detect_io_instance->io_state)
+ if ((buffer == NULL) ||
+ (size == 0))
+ {
+ switch (header_detect_io_instance->io_state)
+ {
+ default:
+ break;
+
+ case IO_STATE_OPEN:
+ /* Codes_SRS_HEADER_DETECT_IO_01_051: [ If `buffer` is NULL or `size` is 0 while the IO is OPEN an error shall be indicated by calling `on_io_error`. ]*/
+ indicate_error(header_detect_io_instance);
+ break;
+ }
+ }
+ else
{
- default:
- break;
+ while (size > 0)
+ {
+ switch (header_detect_io_instance->io_state)
+ {
+ default:
+ break;
+
+ case IO_STATE_OPENING_UNDERLYING_IO:
+ /* Codes_SRS_HEADER_DETECT_IO_01_049: [ When `on_underlying_io_bytes_received` is called while opening the underlying IO (before the underlying open complete is received), an error shall be indicated by calling `on_io_open_complete` with `IO_OPEN_ERROR`. ]*/
+ indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
+ size = 0;
+ break;
- case IO_STATE_WAIT_FOR_HEADER:
- if (amqp_header[header_detect_io_instance->header_pos] != buffer[0])
- {
- /* Send expected header, then close as per spec. We do not care if we fail */
- (void)xio_send(header_detect_io_instance->underlying_io, amqp_header, sizeof(amqp_header), on_send_complete_close, context);
+ case IO_STATE_OPENING_DETECTED_IO:
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_087: [ If `on_underlying_io_bytes_received` is called while waiting for the detected IO to complete its open, the bytes shall be given to the last created IO by calling its `on_bytes_received` callback that was filled into the `on_bytes_received` member of `SERVER_PROTOCOL_IO_CONFIG`. ]*/
+ CHAINED_IO* chained_io = (CHAINED_IO*)(((unsigned char*)header_detect_io_instance->last_io) - offsetof(CHAINED_IO, detected_io));
+ (chained_io->on_bytes_received)(chained_io->on_bytes_received_context, buffer, size);
+ size = 0;
+ break;
+ }
+
+ case IO_STATE_WAIT_FOR_HEADER:
+ {
+ size_t i;
+ bool has_one_match = false;
+
+ /* check if any of the headers matches */
+ for (i = 0; i < header_detect_io_instance->header_detect_entry_count; i++)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_067: [ When `on_underlying_io_bytes_received` is called while waiting for header bytes (after the underlying IO was open), the bytes shall be matched against the entries provided in the configuration passed to `header_detect_io_create`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_068: [ Header bytes shall be accepted in multiple `on_underlying_io_bytes_received` calls. ]*/
+ if ((header_detect_io_instance->header_pos < header_detect_io_instance->header_detect_entries[i].header_size) &&
+ (header_detect_io_instance->header_detect_entries[i].header_bytes[header_detect_io_instance->header_pos] == buffer[0]))
+ {
+ has_one_match = true;
- header_detect_io_instance->io_state = IO_STATE_NOT_OPEN;
- indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
- size = 0;
- }
- else
- {
- header_detect_io_instance->header_pos++;
- size--;
- buffer++;
- if (header_detect_io_instance->header_pos == sizeof(amqp_header))
- {
- if (xio_send(header_detect_io_instance->underlying_io, amqp_header, sizeof(amqp_header), NULL, NULL) != 0)
+ if (header_detect_io_instance->header_pos + 1 == header_detect_io_instance->header_detect_entries[i].header_size)
+ {
+ /* recognized one header */
+ if (xio_send(*header_detect_io_instance->last_io, header_detect_io_instance->header_detect_entries[i].header_bytes, header_detect_io_instance->header_detect_entries[i].header_size, on_send_complete, header_detect_io_instance) != 0)
+ {
+ LogError("Failed sending header");
+ header_detect_io_instance->io_state = IO_STATE_NOT_OPEN;
+ indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
+ }
+ else
+ {
+ // wait for send complete and then start the detected IO open
+ if (header_detect_io_instance->header_detect_entries[i].io_interface_description == NULL)
+ {
+ header_detect_io_instance->io_state = IO_STATE_OPEN;
+ indicate_open_complete(header_detect_io_instance, IO_OPEN_OK);
+ }
+ else
+ {
+ SERVER_PROTOCOL_IO_CONFIG server_protocol_io_config;
+ CHAINED_IO* chained_io = (CHAINED_IO*)malloc(sizeof(CHAINED_IO));
+ if (chained_io == NULL)
+ {
+ LogError("Cannot allocate memory for chained IO");
+ internal_close(header_detect_io_instance);
+ indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
+ }
+ else
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_076: [ If no detected IO was created then the underlying IO in the `SERVER_PROTOCOL_IO_CONFIG` structure shall be set to the `underlying_io` passed in the create arguments. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_075: [ The underlying IO in the `SERVER_PROTOCOL_IO_CONFIG` structure shall be set to the last detected IO that was created if any. ]*/
+ server_protocol_io_config.underlying_io = *header_detect_io_instance->last_io;
+ server_protocol_io_config.on_bytes_received = &chained_io->on_bytes_received;
+ server_protocol_io_config.on_bytes_received_context = &chained_io->on_bytes_received_context;
+
+ /* Codes_SRS_HEADER_DETECT_IO_01_069: [ If a header match was detected on an entry with a non-NULL io handle, a new IO associated shall be created by calling `xio_create`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_073: [ The interface description passed to `xio_create` shall be the interface description associated with the detected header. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_074: [ The IO create parameters shall be a `SERVER_PROTOCOL_IO_CONFIG` structure. ]*/
+ chained_io->detected_io = xio_create(header_detect_io_instance->header_detect_entries[i].io_interface_description, &server_protocol_io_config);
+ if (chained_io->detected_io == NULL)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_077: [ If `xio_create` fails the header detect IO shall be closed and an error shall be indicated by calling `on_io_open_complete` with `IO_OPEN_ERROR`. ]*/
+ LogError("Creating detected IO failed");
+ free(chained_io);
+ internal_close(header_detect_io_instance);
+ indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
+ }
+ else
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_086: [ The newly created IO shall be added to the chain of IOs by calling `singlylinkedlist_add`. ]*/
+ LIST_ITEM_HANDLE new_list_item = singlylinkedlist_add(header_detect_io_instance->chained_io_list, chained_io);
+ if (new_list_item == NULL)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_084: [ If `singlylinkedlist_add` fails the newly created IO shall be destroyed and an error shall be indicated by calling `on_io_open_complete` with `IO_OPEN_ERROR`. ]*/
+ LogError("Cannot add detected IO to list");
+ xio_destroy(chained_io->detected_io);
+ free(chained_io);
+ internal_close(header_detect_io_instance);
+ indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
+ }
+ else
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_063: [ `header_detect_io_close_async` shall close the last detected IO that was created as a result of matching a header. ]*/
+ XIO_HANDLE* previous_last_io = header_detect_io_instance->last_io;
+ header_detect_io_instance->last_io = &chained_io->detected_io;
+
+ /* Codes_SRS_HEADER_DETECT_IO_01_083: [ The header detect IO shall wait for opening of the detected IO (signaled by the `on_underlying_io_open_complete`). ]*/
+ header_detect_io_instance->io_state = IO_STATE_OPENING_DETECTED_IO;
+
+ /* Codes_SRS_HEADER_DETECT_IO_01_078: [ The newly create IO shall be open by calling `xio_open`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_079: [ The `on_io_open_complete` callback passed to `xio_open` shall be `on_underlying_io_open_complete`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_080: [ The `on_bytes_received` callback passed to `xio_open` shall be `on_underlying_io_bytes_received`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_081: [ The `on_io_error` callback passed to `xio_open` shall be `on_underlying_io_error`. ]*/
+ if (xio_open(chained_io->detected_io, on_underlying_io_open_complete, header_detect_io_instance, on_underlying_io_bytes_received, header_detect_io_instance, on_underlying_io_error, header_detect_io_instance) != 0)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_082: [ If `xio_open` fails the header detect IO shall be closed and an error shall be indicated by calling `on_io_open_complete` with `IO_OPEN_ERROR`. ]*/
+ LogError("Opening detected IO failed");
+ if (singlylinkedlist_remove(header_detect_io_instance->chained_io_list, new_list_item) != 0)
+ {
+ LogError("Cannot remove chained IO from list");
+ }
+
+ xio_destroy(chained_io->detected_io);
+ free(chained_io);
+ header_detect_io_instance->last_io = previous_last_io;
+ internal_close(header_detect_io_instance);
+ indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
+ }
+ else
+ {
+ // all OK
+ }
+ }
+ }
+ }
+ }
+ }
+
+ break;
+ }
+ }
+ }
+
+ if (has_one_match)
{
- header_detect_io_instance->io_state = IO_STATE_NOT_OPEN;
- indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
+ if (header_detect_io_instance->io_state == IO_STATE_OPENING_DETECTED_IO)
+ {
+ header_detect_io_instance->header_pos = 0;
+ }
+ else
+ {
+ header_detect_io_instance->header_pos++;
+ }
+
+ size--;
+ buffer++;
}
else
{
- header_detect_io_instance->io_state = IO_STATE_OPEN;
- indicate_open_complete(header_detect_io_instance, IO_OPEN_OK);
+ /* all header matches failed, we can't proceed, send back to the peer the first header we know of, */
+ /* then close as per spec. We do not care if we fail sending */
+ if (xio_send(header_detect_io_instance->underlying_io, header_detect_io_instance->header_detect_entries[0].header_bytes, header_detect_io_instance->header_detect_entries[0].header_size, NULL, NULL) != 0)
+ {
+ LogError("Failed sending header");
+ }
+
+ internal_close(header_detect_io_instance);
+ indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
+ size = 0;
}
+
+ break;
+ }
+
+ case IO_STATE_OPEN:
+ /* Codes_SRS_HEADER_DETECT_IO_01_089: [ If `on_underlying_io_bytes_received` is called while header detect IO is OPEN the bytes shall be given to the user via the `on_bytes_received` callback that was the `on_bytes_received` callback passed to `header_detect_io_open_async`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_090: [ If no detected IOs were created and `on_underlying_io_bytes_received` is called while header detect IO is OPEN, the `on_bytes_received` callback passed to `header_detect_io_open_async` shall be called to indicate the bytes as received. ]*/
+ header_detect_io_instance->on_bytes_received(header_detect_io_instance->on_bytes_received_context, buffer, size);
+ size = 0;
+ break;
}
}
- break;
-
- case IO_STATE_OPEN:
- header_detect_io_instance->on_bytes_received(header_detect_io_instance->on_bytes_received_context, buffer, size);
- size = 0;
- break;
}
}
}
@@ -125,11 +352,15 @@
break;
case IO_STATE_CLOSING:
+ /* Codes_SRS_HEADER_DETECT_IO_01_095: [ When `on_underlying_io_open_complete` is called when the IO is closing, it shall destroy all the detected IOs that were created. ]*/
+ destroy_io_chain(header_detect_io_instance);
+
header_detect_io_instance->io_state = IO_STATE_NOT_OPEN;
indicate_close_complete(header_detect_io_instance);
break;
case IO_STATE_WAIT_FOR_HEADER:
+ case IO_STATE_OPENING_DETECTED_IO:
case IO_STATE_OPENING_UNDERLYING_IO:
header_detect_io_instance->io_state = IO_STATE_NOT_OPEN;
indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
@@ -139,110 +370,296 @@
static void on_underlying_io_open_complete(void* context, IO_OPEN_RESULT open_result)
{
- HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)context;
-
- switch (header_detect_io_instance->io_state)
+ if (context == NULL)
{
- default:
- break;
+ /* Codes_SRS_HEADER_DETECT_IO_01_048: [ If `context` is NULL, `on_underlying_io_open_complete` shall do nothing. ]*/
+ LogError("NULL context");
+ }
+ else
+ {
+ HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)context;
- case IO_STATE_OPENING_UNDERLYING_IO:
if (open_result == IO_OPEN_OK)
{
- header_detect_io_instance->io_state = IO_STATE_WAIT_FOR_HEADER;
+ switch (header_detect_io_instance->io_state)
+ {
+ default:
+ LogError("on_io_open_complete called in unexpected state: %d", (int)header_detect_io_instance->io_state);
+ break;
+
+ case IO_STATE_OPENING_DETECTED_IO:
+ case IO_STATE_OPENING_UNDERLYING_IO:
+ /* Codes_SRS_HEADER_DETECT_IO_01_046: [ When `on_underlying_io_open_complete` is called with `open_result` being `IO_OPEN_OK` while OPENING, the IO shall start monitoring received bytes in order to detect headers. ]*/
+ header_detect_io_instance->io_state = IO_STATE_WAIT_FOR_HEADER;
+ break;
+ }
}
else
{
- if (xio_close(header_detect_io_instance->underlying_io, on_underlying_io_close_complete, header_detect_io_instance) != 0)
+ switch (header_detect_io_instance->io_state)
{
+ default:
+ LogError("on_io_open_complete called in unexpected state: %d", (int)header_detect_io_instance->io_state);
+ break;
+
+ case IO_STATE_OPENING_DETECTED_IO:
+ case IO_STATE_OPENING_UNDERLYING_IO:
+ /* Codes_SRS_HEADER_DETECT_IO_01_047: [ When `on_underlying_io_open_complete` is called with `open_result` being `IO_OPEN_ERROR` while OPENING, the `on_io_open_complete` callback passed to `header_detect_io_open` shall be called with `IO_OPEN_ERROR`. ]*/
+ internal_close(header_detect_io_instance);
+
header_detect_io_instance->io_state = IO_STATE_NOT_OPEN;
indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
+ break;
}
}
-
- break;
}
}
static void on_underlying_io_error(void* context)
{
- HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)context;
+ if (context == NULL)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_058: [ If `context` is NULL, `on_underlying_io_error` shall do nothing. ]*/
+ LogError("NULL context");
+ }
+ else
+ {
+ HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)context;
- switch (header_detect_io_instance->io_state)
- {
- default:
- break;
+ switch (header_detect_io_instance->io_state)
+ {
+ default:
+ break;
- case IO_STATE_WAIT_FOR_HEADER:
- case IO_STATE_OPENING_UNDERLYING_IO:
- header_detect_io_instance->io_state = IO_STATE_NOT_OPEN;
- indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
- break;
+ case IO_STATE_WAIT_FOR_HEADER:
+ case IO_STATE_OPENING_DETECTED_IO:
+ case IO_STATE_OPENING_UNDERLYING_IO:
+ /* Tests_SRS_HEADER_DETECT_IO_01_057: [ When `on_underlying_io_error` is called while OPENING, the IO shall indicate an error by calling `on_io_open_complete` with `IO_OPEN_ERROR` and it shall close the underlying IOs. ]*/
+ internal_close(header_detect_io_instance);
+ indicate_open_complete(header_detect_io_instance, IO_OPEN_ERROR);
+ break;
- case IO_STATE_OPEN:
- header_detect_io_instance->io_state = IO_STATE_ERROR;
- indicate_error(header_detect_io_instance);
- break;
+ case IO_STATE_OPEN:
+ /* Codes_SRS_HEADER_DETECT_IO_01_059: [ When `on_underlying_io_error` is called while OPEN, the error should be indicated to the consumer by calling `on_io_error` and passing the `on_io_error_context` to it. ]*/
+ header_detect_io_instance->io_state = IO_STATE_ERROR;
+ indicate_error(header_detect_io_instance);
+ break;
+ }
}
}
-CONCRETE_IO_HANDLE headerdetectio_create(void* io_create_parameters)
+static CONCRETE_IO_HANDLE header_detect_io_create(void* io_create_parameters)
{
HEADER_DETECT_IO_INSTANCE* result;
if (io_create_parameters == NULL)
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_003: [ If `io_create_parameters` is NULL, `header_detect_io_create` shall fail and return NULL. ]*/
+ LogError("NULL io_create_parameters");
result = NULL;
}
else
{
- HEADERDETECTIO_CONFIG* header_detect_io_config = (HEADERDETECTIO_CONFIG*)io_create_parameters;
- result = (HEADER_DETECT_IO_INSTANCE*)malloc(sizeof(HEADER_DETECT_IO_INSTANCE));
- if (result != NULL)
+ /* Codes_SRS_HEADER_DETECT_IO_01_004: [ `io_create_parameters` shall be used as `HEADER_DETECT_IO_CONFIG*`. ]*/
+ HEADER_DETECT_IO_CONFIG* header_detect_io_config = (HEADER_DETECT_IO_CONFIG*)io_create_parameters;
+
+ /* Codes_SRS_HEADER_DETECT_IO_01_005: [ If the member `header_detect_entry_count` of `HEADER_DETECT_IO_CONFIG` is 0 then `header_detect_io_create` shall fail and return NULL. ]*/
+ if ((header_detect_io_config->header_detect_entry_count == 0) ||
+ /* Codes_SRS_HEADER_DETECT_IO_01_006: [ If the member `header_detect_entries` is NULL then `header_detect_io_create` shall fail and return NULL. ]*/
+ (header_detect_io_config->header_detect_entries == NULL) ||
+ /* Codes_SRS_HEADER_DETECT_IO_01_007: [ If the member `underlying_io` is NULL then `header_detect_io_create` shall fail and return NULL. ]*/
+ (header_detect_io_config->underlying_io == NULL))
+ {
+ LogError("Bad create parameters: header_detect_entry_count = %u, header_detect_entries = %p, underlying_io = %p",
+ header_detect_io_config->header_detect_entry_count,
+ header_detect_io_config->header_detect_entries,
+ header_detect_io_config->underlying_io);
+ result = NULL;
+ }
+ else
{
- result->underlying_io = header_detect_io_config->underlying_io;
- result->on_io_open_complete = NULL;
- result->on_io_close_complete = NULL;
- result->on_io_error = NULL;
- result->on_bytes_received = NULL;
- result->on_io_open_complete_context = NULL;
- result->on_io_close_complete_context = NULL;
- result->on_io_error_context = NULL;
- result->on_bytes_received_context = NULL;
+ size_t i;
+ bool null_io_found = false;
+
+ for (i = 0; i < header_detect_io_config->header_detect_entry_count; i++)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_052: [ The `io` member in the in each of the `header_detect_entries` shall be allowed to be NULL. ]*/
+ if (header_detect_io_config->header_detect_entries[i].header.header_bytes == NULL)
+ {
+ LogError("header detect entry %u is invalid", (unsigned int)i);
+ break;
+ }
+
+ if (header_detect_io_config->header_detect_entries[i].io_interface_description == NULL)
+ {
+ null_io_found = true;
+ }
+ }
+
+ if (i < header_detect_io_config->header_detect_entry_count)
+ {
+ result = NULL;
+ }
+ else if (!null_io_found)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_054: [ At least one entry in `header_detect_entries` shall have IO set to NULL, otherwise `header_detect_io_create` shall fail and return NULL. ]*/
+ LogError("No default header found");
+ result = NULL;
+ }
+ else
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_001: [ `header_detect_io_create` shall create a new header detect IO instance and on success it shall return a non-NULL handle to the newly created instance. ] */
+ result = (HEADER_DETECT_IO_INSTANCE*)malloc(sizeof(HEADER_DETECT_IO_INSTANCE));
+ if (result == NULL)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_002: [ If allocating memory for the header detect IO instance fails, `header_detect_io_create` shall fail and return NULL. ]*/
+ LogError("Cannot allocate memory for header detect IO");
+ }
+ else
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_009: [ The `header_detect_entries` array shall be copied so that it can be later used when detecting which header was received. ]*/
+ result->header_detect_entries = (INTERNAL_HEADER_DETECT_ENTRY*)malloc(header_detect_io_config->header_detect_entry_count * sizeof(INTERNAL_HEADER_DETECT_ENTRY));
+ if (result->header_detect_entries == NULL)
+ {
+ free(result);
+ result = NULL;
+ }
+ else
+ {
+ result->header_detect_entry_count = header_detect_io_config->header_detect_entry_count;
- result->io_state = IO_STATE_NOT_OPEN;
+ /* Codes_SRS_HEADER_DETECT_IO_01_009: [ The `header_detect_entries` array shall be copied so that it can be later used when detecting which header was received. ]*/
+ for (i = 0; i < header_detect_io_config->header_detect_entry_count; i++)
+ {
+ result->header_detect_entries[i].header_size = header_detect_io_config->header_detect_entries[i].header.header_size;
+ result->header_detect_entries[i].header_bytes = (unsigned char*)malloc(result->header_detect_entries[i].header_size);
+ if (result->header_detect_entries[i].header_bytes == NULL)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_010: [ If allocating memory for the `header_detect_entries` or its constituents fails then `header_detect_io_create` shall fail and return NULL. ]*/
+ break;
+ }
+ else
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_014: [ For each entry in `header_detect_entries` the `header` field shall also be copied. ]*/
+ (void)memcpy(result->header_detect_entries[i].header_bytes, header_detect_io_config->header_detect_entries[i].header.header_bytes, result->header_detect_entries[i].header_size);
+ result->header_detect_entries[i].io_interface_description = header_detect_io_config->header_detect_entries[i].io_interface_description;
+ }
+ }
+
+ if (i < header_detect_io_config->header_detect_entry_count)
+ {
+ size_t j;
+
+ LogError("Failed copying header detect configuration");
+ for (j = 0; j < i; j++)
+ {
+ free(result->header_detect_entries[j].header_bytes);
+ }
+
+ free(result->header_detect_entries);
+ free(result);
+ result = NULL;
+ }
+ else
+ {
+ /* Codes*SRS_HEADER_DETECT_IO_01_060: [ `header_detect_io_create` shall create a singly linked list by calling `singlylinkedlist_create` where the chained detected IOs shall be stored. ]*/
+ result->chained_io_list = singlylinkedlist_create();
+ if (result->chained_io_list == NULL)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_065: [ If `singlylinkedlist_create` fails then `header_detect_io_create` shall fail and return NULL. ]*/
+ LogError("Failed copying header detect configuration");
+ for (i = 0; i < result->header_detect_entry_count; i++)
+ {
+ free(result->header_detect_entries[i].header_bytes);
+ }
+
+ free(result->header_detect_entries);
+ free(result);
+ result = NULL;
+ }
+ else
+ {
+ result->underlying_io = header_detect_io_config->underlying_io;
+ result->on_io_open_complete = NULL;
+ result->on_io_close_complete = NULL;
+ result->on_io_error = NULL;
+ result->on_bytes_received = NULL;
+ result->on_io_open_complete_context = NULL;
+ result->on_io_close_complete_context = NULL;
+ result->on_io_error_context = NULL;
+ result->on_bytes_received_context = NULL;
+
+ /* Codes_SRS_HEADER_DETECT_IO_01_070: [ If no detected IO was created then `header_detect_io_close_async` shall close the `underlying_io` passed in `header_detect_io_create`. ]*/
+ result->last_io = &result->underlying_io;
+
+ result->io_state = IO_STATE_NOT_OPEN;
+ }
+ }
+ }
+ }
+ }
}
}
return result;
}
-void headerdetectio_destroy(CONCRETE_IO_HANDLE header_detect_io)
+static void header_detect_io_destroy(CONCRETE_IO_HANDLE header_detect_io)
{
- if (header_detect_io != NULL)
+ if (header_detect_io == NULL)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_012: [ If `header_detect_io` is NULL, `header_detect_io_destroy` shall do nothing. ]*/
+ LogError("NULL header_detect_io");
+ }
+ else
{
+ size_t i;
HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)header_detect_io;
- (void)headerdetectio_close(header_detect_io, NULL, NULL);
- xio_destroy(header_detect_io_instance->underlying_io);
+
+ if (header_detect_io_instance->io_state != IO_STATE_NOT_OPEN)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_062: [ If the IO is still open when `header_detect_io_destroy` is called, all actions normally executed when closing the IO shall also be executed. ]*/
+ internal_close(header_detect_io_instance);
+ }
+
+ /* Codes_SRS_HEADER_DETECT_IO_01_061: [ `header_detect_io_destroy` shall destroy the chained IO list by calling `singlylinkedlist_destroy`. ]*/
+ singlylinkedlist_destroy(header_detect_io_instance->chained_io_list);
+
+ /* Codes_SRS_HEADER_DETECT_IO_01_011: [ `header_detect_io_destroy` shall free all resources associated with the `header_detect_io` handle. ]*/
+ for (i = 0; i < header_detect_io_instance->header_detect_entry_count; i++)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_013: [ `header_detect_io_destroy` shall free the memory allocated for the `header_detect_entries`. ]*/
+ free(header_detect_io_instance->header_detect_entries[i].header_bytes);
+ }
+
+ free(header_detect_io_instance->header_detect_entries);
+
free(header_detect_io);
}
}
-int headerdetectio_open(CONCRETE_IO_HANDLE header_detect_io, ON_IO_OPEN_COMPLETE on_io_open_complete, void* on_io_open_complete_context, ON_BYTES_RECEIVED on_bytes_received, void* on_bytes_received_context, ON_IO_ERROR on_io_error, void* on_io_error_context)
+static int header_detect_io_open_async(CONCRETE_IO_HANDLE header_detect_io, ON_IO_OPEN_COMPLETE on_io_open_complete, void* on_io_open_complete_context, ON_BYTES_RECEIVED on_bytes_received, void* on_bytes_received_context, ON_IO_ERROR on_io_error, void* on_io_error_context)
{
int result;
- if (header_detect_io == NULL)
+ if ((header_detect_io == NULL) ||
+ (on_io_open_complete == NULL) ||
+ (on_bytes_received == NULL) ||
+ (on_io_error == NULL))
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_021: [ If `header_detect_io`, `on_io_open_complete`, `on_bytes_received` or `on_io_error` is NULL, `header_detect_io_open_async` shall fail and return a non-zero value. ]*/
+ LogError("Bad arguments: header_detect_io = %p, on_io_open_complete = %p, on_bytes_received = %p, on_io_error = %p",
+ header_detect_io, on_io_open_complete, on_bytes_received, on_io_error);
result = __FAILURE__;
}
else
{
HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)header_detect_io;
- if (header_detect_io_instance->io_state != IO_STATE_NOT_OPEN &&
- header_detect_io_instance->io_state != IO_STATE_OPEN)
+ if (header_detect_io_instance->io_state != IO_STATE_NOT_OPEN)
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_020: [ If the IO is already OPEN or OPENING then `header_detect_io_open_async` shall fail and return a non-zero value. ]*/
+ LogError("Already OPEN");
result = __FAILURE__;
}
else
@@ -254,24 +671,22 @@
header_detect_io_instance->on_io_open_complete_context = on_io_open_complete_context;
header_detect_io_instance->on_io_error_context = on_io_error_context;
- if (header_detect_io_instance->io_state == IO_STATE_OPEN)
+ header_detect_io_instance->io_state = IO_STATE_OPENING_UNDERLYING_IO;
+ header_detect_io_instance->header_pos = 0;
+
+ /* Codes_SRS_HEADER_DETECT_IO_01_015: [ `header_detect_io_open_async` shall open the underlying IO by calling `xio_open` and passing to it: ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_016: [ - `xio` shall be the `underlying_io` member of the `io_create_parameters` passed to `header_detect_io_create`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_017: [ - `on_io_open_complete`, `on_io_open_complete_context`, `on_bytes_received`, `on_bytes_received_context`, `on_error` and `on_error_context` shall be set to implementation specific values of `header_detect_io`. ]*/
+ if (xio_open(header_detect_io_instance->underlying_io, on_underlying_io_open_complete, header_detect_io_instance, on_underlying_io_bytes_received, header_detect_io_instance, on_underlying_io_error, header_detect_io_instance) != 0)
{
- indicate_open_complete(header_detect_io_instance, IO_OPEN_OK);
- result = 0;
+ /* Codes_SRS_HEADER_DETECT_IO_01_019: [ If `xio_open` fails, `header_detect_io_open_async` shall fail and return a non-zero value. ]*/
+ LogError("xio_open failed");
+ result = __FAILURE__;
}
else
{
- header_detect_io_instance->header_pos = 0;
- header_detect_io_instance->io_state = IO_STATE_OPENING_UNDERLYING_IO;
-
- if (xio_open(header_detect_io_instance->underlying_io, on_underlying_io_open_complete, header_detect_io_instance, on_underlying_io_bytes_received, header_detect_io_instance, on_underlying_io_error, header_detect_io_instance) != 0)
- {
- result = __FAILURE__;
- }
- else
- {
- result = 0;
- }
+ /* Codes_SRS_HEADER_DETECT_IO_01_018: [ On success `header_detect_io_open_async` shall return 0. ]*/
+ result = 0;
}
}
}
@@ -279,21 +694,35 @@
return result;
}
-int headerdetectio_close(CONCRETE_IO_HANDLE header_detect_io, ON_IO_CLOSE_COMPLETE on_io_close_complete, void* callback_context)
+static int header_detect_io_close_async(CONCRETE_IO_HANDLE header_detect_io, ON_IO_CLOSE_COMPLETE on_io_close_complete, void* callback_context)
{
int result;
if (header_detect_io == NULL)
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_026: [ If `header_detect_io` is NULL, `header_detect_io_close_async` shall fail and return a non-zero value. ]*/
+ LogError("NULL header_detect_io");
result = __FAILURE__;
}
else
{
HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)header_detect_io;
- if ((header_detect_io_instance->io_state == IO_STATE_NOT_OPEN) ||
+ /* Codes_SRS_HEADER_DETECT_IO_01_027: [ If the IO is not OPEN (open has not been called or close has been completely carried out) `header_detect_io_close_async` shall fail and return a non-zero value. ]*/
+ if ((header_detect_io_instance->io_state == IO_STATE_OPENING_UNDERLYING_IO) ||
+ (header_detect_io_instance->io_state == IO_STATE_OPENING_DETECTED_IO) ||
+ (header_detect_io_instance->io_state == IO_STATE_WAIT_FOR_HEADER))
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_028: [ If the IO is OPENING (`header_detect_io_open_async` has been called, but no header has been detected yet), `header_detect_io_close_async` shall close the underlying IO and call `on_io_open_complete` with `IO_OPEN_CANCELLED`. ]*/
+ (void)internal_close(header_detect_io_instance);
+ header_detect_io_instance->on_io_open_complete(header_detect_io_instance->on_io_open_complete_context, IO_OPEN_CANCELLED);
+ result = 0;
+ }
+ else if ((header_detect_io_instance->io_state == IO_STATE_NOT_OPEN) ||
+ /* Codes_SRS_HEADER_DETECT_IO_01_053: [ If the IO is CLOSING then `header_detect_io_close_async` shall fail and return a non-zero value. ]*/
(header_detect_io_instance->io_state == IO_STATE_CLOSING))
{
+ LogError("Not open");
result = __FAILURE__;
}
else
@@ -302,12 +731,18 @@
header_detect_io_instance->on_io_close_complete = on_io_close_complete;
header_detect_io_instance->on_io_close_complete_context = callback_context;
- if (xio_close(header_detect_io_instance->underlying_io, on_underlying_io_close_complete, header_detect_io_instance) != 0)
+ /* Codes_SRS_HEADER_DETECT_IO_01_022: [ `header_detect_io_close_async` shall close the underlying IO by calling `xio_close` and passing to it: ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_023: [ - `xio` shall be the `underlying_io` member of the `io_create_parameters` passed to `header_detect_io_create`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_024: [ - `on_io_close_complete` shall be set to implementation specific values of `header_detect_io`. ]*/
+ if (xio_close(*header_detect_io_instance->last_io, on_underlying_io_close_complete, header_detect_io_instance) != 0)
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_092: [ If `xio_close` fails `header_detect_io_close_async` shall fail and return a non-zero value. ]*/
+ LogError("xio_close failed");
result = __FAILURE__;
}
else
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_025: [ On success `header_detect_io_close_async` shall return 0. ]*/
result = 0;
}
}
@@ -316,12 +751,19 @@
return result;
}
-int headerdetectio_send(CONCRETE_IO_HANDLE header_detect_io, const void* buffer, size_t size, ON_SEND_COMPLETE on_send_complete, void* callback_context)
+static int header_detect_io_send_async(CONCRETE_IO_HANDLE header_detect_io, const void* buffer, size_t size, ON_SEND_COMPLETE on_send_complete, void* callback_context)
{
int result;
- if (header_detect_io == NULL)
+ /* Codes_SRS_HEADER_DETECT_IO_01_055: [ `on_send_complete` and `callback_context` shall be allowed to be NULL. ]*/
+ if ((header_detect_io == NULL) ||
+ (buffer == NULL) ||
+ /* Codes_SRS_HEADER_DETECT_IO_01_034: [ If `size` is 0, `header_detect_io_send_async` shall fail and return a non-zero value. ]*/
+ (size == 0))
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_033: [ If `header_detect_io` or `buffer` is NULL, `header_detect_io_send_async` shall fail and return a non-zero value. ]*/
+ LogError("Bad arguments: header_detect_io = %p, buffer = %p, size = %u",
+ header_detect_io, buffer, (unsigned int)size);
result = __FAILURE__;
}
else
@@ -330,16 +772,23 @@
if (header_detect_io_instance->io_state != IO_STATE_OPEN)
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_093: [ `header_detect_io_send_async` when the IO is not open shall fail and return a non-zero value. ]*/
+ LogError("header_detect_io not OPEN");
result = __FAILURE__;
}
else
{
- if (xio_send(header_detect_io_instance->underlying_io, buffer, size, on_send_complete, callback_context) != 0)
+ /* Codes_SRS_HEADER_DETECT_IO_01_029: [ If no detected IO was created, `header_detect_io_send_async` shall send the bytes to the underlying IO passed via `header_detect_io_create`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_030: [ The `buffer`, `size`, `on_send_complete` and `callback_context` shall be passed as is to `xio_send`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_071: [ If the header IO is open `header_detect_io_send_async` shall send the bytes to the last detected IO by calling `xio_send` that was created as result of matching a header. ]*/
+ if (xio_send(*header_detect_io_instance->last_io, buffer, size, on_send_complete, callback_context) != 0)
{
+ LogError("xio_send failed");
result = __FAILURE__;
}
else
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_031: [ On success `header_detect_io_send_async` shall return 0. ]*/
result = 0;
}
}
@@ -348,39 +797,64 @@
return result;
}
-void headerdetectio_dowork(CONCRETE_IO_HANDLE header_detect_io)
+static void header_detect_io_dowork(CONCRETE_IO_HANDLE header_detect_io)
{
- if (header_detect_io != NULL)
+ if (header_detect_io == NULL)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_036: [ If `header_detect_io` is NULL, `header_detect_io_dowork` shall do nothing. ]*/
+ LogError("NULL header_detect_io");
+ }
+ else
{
HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)header_detect_io;
+ /* Codes_SRS_HEADER_DETECT_IO_01_037: [ No work shall be scheduled if `header_detect_io` is not OPEN or in ERROR (an error has been indicated to the user). ]*/
if ((header_detect_io_instance->io_state != IO_STATE_NOT_OPEN) &&
(header_detect_io_instance->io_state != IO_STATE_ERROR))
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_056: [ `header_detect_io_dowork` shall call `xio_dowork` for all detected IOs created as a result of matching headers. ]*/
+ LIST_ITEM_HANDLE list_item = singlylinkedlist_get_head_item(header_detect_io_instance->chained_io_list);
+ while (list_item != NULL)
+ {
+ CHAINED_IO* chained_io = (CHAINED_IO*)singlylinkedlist_item_get_value(list_item);
+ xio_dowork(chained_io->detected_io);
+
+ list_item = singlylinkedlist_get_next_item(list_item);
+ }
+
+ /* Codes_SRS_HEADER_DETECT_IO_01_035: [ `header_detect_io_dowork` shall schedule work for the underlying IO associated with `header_detect_io` by calling `xio_dowork` and passing as argument the `underlying_io` member of the `io_create_parameters` passed to `header_detect_io_create`. ]*/
xio_dowork(header_detect_io_instance->underlying_io);
}
}
}
-int headerdetectio_setoption(CONCRETE_IO_HANDLE header_detect_io, const char* optionName, const void* value)
+static int header_detect_io_set_option(CONCRETE_IO_HANDLE header_detect_io, const char* option_name, const void* value)
{
int result;
- if (header_detect_io == NULL)
+ if ((header_detect_io == NULL) ||
+ (option_name == NULL))
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_044: [ If `header_detect_io` or `optionName` is NULL, `header_detect_io_set_option` shall fail and return a non-zero value. ]*/
+ LogError("NULL header_detect_io");
result = __FAILURE__;
}
else
{
HEADER_DETECT_IO_INSTANCE* header_detect_io_instance = (HEADER_DETECT_IO_INSTANCE*)header_detect_io;
- if (header_detect_io_instance->underlying_io == NULL)
+ /* Codes_SRS_HEADER_DETECT_IO_01_042: [ If no detected IO was created `header_detect_io_set_option` shall pass any option to the underlying IO by calling `xio_setoption` and passing as IO handle the `underlying_io` member of the `io_create_parameters` passed to `header_detect_io_create`. ]*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_072: [ If any detected IO was created, `header_detect_io_set_option` shall pass any option to the last detected IO by calling `xio_setoption` and passing as IO handle the `underlying_io` member of the `io_create_parameters` passed to `header_detect_io_create`. ]*/
+ if (xio_setoption(*header_detect_io_instance->last_io, option_name, value) != 0)
{
+ /* Codes_SRS_HEADER_DETECT_IO_01_045: [ If `xio_setoption` fails, `header_detect_io_set_option` shall fail and return a non-zero value. ]*/
+ LogError("Setting the option on the underlying IO failed");
result = __FAILURE__;
}
else
{
- result = xio_setoption(header_detect_io_instance->underlying_io, optionName, value);
+ /* Codes_SRS_HEADER_DETECT_IO_01_043: [ On success, `header_detect_io_set_option` shall return 0. ]*/
+ result = 0;
}
}
@@ -388,7 +862,7 @@
}
/*this function will clone an option given by name and value*/
-static void* headerdetectio_CloneOption(const char* name, const void* value)
+static void* header_detect_io_clone_option(const char* name, const void* value)
{
(void)name;
(void)value;
@@ -396,42 +870,78 @@
}
/*this function destroys an option previously created*/
-static void headerdetectio_DestroyOption(const char* name, const void* value)
+static void header_detect_io_destroy_option(const char* name, const void* value)
{
(void)name;
(void)value;
}
-static OPTIONHANDLER_HANDLE headerdetectio_retrieveoptions(CONCRETE_IO_HANDLE handle)
+static OPTIONHANDLER_HANDLE header_detect_io_retrieve_options(CONCRETE_IO_HANDLE header_detect_io)
{
OPTIONHANDLER_HANDLE result;
- (void)handle;
- result = OptionHandler_Create(headerdetectio_CloneOption, headerdetectio_DestroyOption, headerdetectio_setoption);
- if (result == NULL)
+
+ if (header_detect_io == NULL)
{
- LogError("unable to OptionHandler_Create");
- /*return as is*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_041: [ If `header_detect_io` is NULL, `header_detect_io_retrieve_options` shall return NULL. ]*/
+ LogError("NULL header_detect_io");
+ result = NULL;
}
else
{
- /*insert here work to add the options to "result" handle*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_038: [ `header_detect_io_retrieve_options` shall create a new `OPTIONHANDLER_HANDLE` by calling `OptionHandler_Create` and on success it shall return a non-NULL handle to the newly created option handler. ]*/
+ result = OptionHandler_Create(header_detect_io_clone_option, header_detect_io_destroy_option, header_detect_io_set_option);
+ if (result == NULL)
+ {
+ /* Codes_SRS_HEADER_DETECT_IO_01_040: [ If `OptionHandler_Create` fails, `header_detect_io_retrieve_options` shall return NULL. ]*/
+ LogError("unable to OptionHandler_Create");
+ /*return as is*/
+ }
+ else
+ {
+ /*insert here work to add the options to "result" handle*/
+ /* Codes_SRS_HEADER_DETECT_IO_01_039: [ No options shall be added to the newly created option handler. ]*/
+ }
}
return result;
}
static const IO_INTERFACE_DESCRIPTION header_detect_io_interface_description =
{
- headerdetectio_retrieveoptions,
- headerdetectio_create,
- headerdetectio_destroy,
- headerdetectio_open,
- headerdetectio_close,
- headerdetectio_send,
- headerdetectio_dowork,
- headerdetectio_setoption
+ header_detect_io_retrieve_options,
+ header_detect_io_create,
+ header_detect_io_destroy,
+ header_detect_io_open_async,
+ header_detect_io_close_async,
+ header_detect_io_send_async,
+ header_detect_io_dowork,
+ header_detect_io_set_option
};
-const IO_INTERFACE_DESCRIPTION* headerdetectio_get_interface_description(void)
+const IO_INTERFACE_DESCRIPTION* header_detect_io_get_interface_description(void)
{
return &header_detect_io_interface_description;
}
+
+static const AMQP_HEADER amqp_header =
+{
+ amqp_header_bytes,
+ sizeof(amqp_header_bytes)
+};
+
+static const AMQP_HEADER sasl_amqp_header =
+{
+ sasl_amqp_header_bytes,
+ sizeof(sasl_amqp_header_bytes)
+};
+
+const AMQP_HEADER header_detect_io_get_amqp_header(void)
+{
+ /* Codes_SRS_HEADER_DETECT_IO_01_091: [ `header_detect_io_get_amqp_header` shall return a structure that should point to a buffer that contains the bytes { 'A', 'M', 'Q', 'P', 0, 1, 0, 0 }. ]*/
+ return amqp_header;
+}
+
+const AMQP_HEADER header_detect_io_get_sasl_amqp_header(void)
+{
+ /* Codes_SRS_HEADER_DETECT_IO_01_091: [ `header_detect_io_get_sasl_amqp_header` shall return a structure that should point to a buffer that contains the bytes { 'A', 'M', 'Q', 'P', 3, 1, 0, 0 }. ]*/
+ return sasl_amqp_header;
+}
