Azure IoT / azure_uamqp_c

A small memory footprint AMQP implimentation

Dependents:   iothub_client_sample_amqp remote_monitoring simplesample_amqp

link.c@17:923575db8b2d, 2017-01-24 (annotated)

Committer:
AzureIoTClient
Date:
Tue Jan 24 15:23:52 2017 -0800
Revision:
17:923575db8b2d
Parent:
13:9abd748f4e78
Child:
19:000ab4e6a2c1
1.1.5

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 #include <string.h>
Azure.IoT Build 0:6ae2f7bca550 6 #include <stdint.h>
Azure.IoT Build 0:6ae2f7bca550 7 #include <stdbool.h>
Azure.IoT Build 0:6ae2f7bca550 8 #include "azure_uamqp_c/link.h"
Azure.IoT Build 0:6ae2f7bca550 9 #include "azure_uamqp_c/session.h"
Azure.IoT Build 0:6ae2f7bca550 10 #include "azure_uamqp_c/amqpvalue.h"
Azure.IoT Build 0:6ae2f7bca550 11 #include "azure_uamqp_c/amqp_definitions.h"
Azure.IoT Build 0:6ae2f7bca550 12 #include "azure_uamqp_c/amqpalloc.h"
Azure.IoT Build 0:6ae2f7bca550 13 #include "azure_uamqp_c/amqp_frame_codec.h"
Azure.IoT Build 0:6ae2f7bca550 14 #include "azure_c_shared_utility/xlogging.h"
AzureIoTClient 12:b30dacf113f2 15 #include "azure_c_shared_utility/singlylinkedlist.h"
Azure.IoT Build 0:6ae2f7bca550 16
Azure.IoT Build 0:6ae2f7bca550 17 #define DEFAULT_LINK_CREDIT 10000
Azure.IoT Build 0:6ae2f7bca550 18
Azure.IoT Build 0:6ae2f7bca550 19 typedef struct DELIVERY_INSTANCE_TAG
Azure.IoT Build 0:6ae2f7bca550 20 {
Azure.IoT Build 0:6ae2f7bca550 21 delivery_number delivery_id;
Azure.IoT Build 0:6ae2f7bca550 22 ON_DELIVERY_SETTLED on_delivery_settled;
Azure.IoT Build 0:6ae2f7bca550 23 void* callback_context;
Azure.IoT Build 0:6ae2f7bca550 24 void* link;
Azure.IoT Build 0:6ae2f7bca550 25 } DELIVERY_INSTANCE;
Azure.IoT Build 0:6ae2f7bca550 26
Azure.IoT Build 0:6ae2f7bca550 27 typedef struct LINK_INSTANCE_TAG
Azure.IoT Build 0:6ae2f7bca550 28 {
Azure.IoT Build 0:6ae2f7bca550 29 SESSION_HANDLE session;
Azure.IoT Build 0:6ae2f7bca550 30 LINK_STATE link_state;
Azure.IoT Build 0:6ae2f7bca550 31 LINK_STATE previous_link_state;
Azure.IoT Build 0:6ae2f7bca550 32 AMQP_VALUE source;
Azure.IoT Build 0:6ae2f7bca550 33 AMQP_VALUE target;
Azure.IoT Build 0:6ae2f7bca550 34 handle handle;
Azure.IoT Build 0:6ae2f7bca550 35 LINK_ENDPOINT_HANDLE link_endpoint;
Azure.IoT Build 0:6ae2f7bca550 36 char* name;
AzureIoTClient 12:b30dacf113f2 37 SINGLYLINKEDLIST_HANDLE pending_deliveries;
Azure.IoT Build 0:6ae2f7bca550 38 sequence_no delivery_count;
Azure.IoT Build 0:6ae2f7bca550 39 role role;
Azure.IoT Build 0:6ae2f7bca550 40 ON_LINK_STATE_CHANGED on_link_state_changed;
Azure.IoT Build 0:6ae2f7bca550 41 ON_LINK_FLOW_ON on_link_flow_on;
Azure.IoT Build 0:6ae2f7bca550 42 ON_TRANSFER_RECEIVED on_transfer_received;
Azure.IoT Build 0:6ae2f7bca550 43 void* callback_context;
Azure.IoT Build 0:6ae2f7bca550 44 sender_settle_mode snd_settle_mode;
Azure.IoT Build 0:6ae2f7bca550 45 receiver_settle_mode rcv_settle_mode;
Azure.IoT Build 0:6ae2f7bca550 46 sequence_no initial_delivery_count;
Azure.IoT Build 0:6ae2f7bca550 47 uint64_t max_message_size;
Azure.IoT Build 0:6ae2f7bca550 48 uint32_t link_credit;
Azure.IoT Build 0:6ae2f7bca550 49 uint32_t available;
Azure.IoT Build 0:6ae2f7bca550 50 fields attach_properties;
AzureIoTClient 12:b30dacf113f2 51 bool is_underlying_session_begun;
AzureIoTClient 12:b30dacf113f2 52 bool is_closed;
AzureIoTClient 12:b30dacf113f2 53 unsigned char* received_payload;
AzureIoTClient 12:b30dacf113f2 54 uint32_t received_payload_size;
AzureIoTClient 12:b30dacf113f2 55 delivery_number received_delivery_id;
Azure.IoT Build 0:6ae2f7bca550 56 } LINK_INSTANCE;
Azure.IoT Build 0:6ae2f7bca550 57
Azure.IoT Build 0:6ae2f7bca550 58 static void set_link_state(LINK_INSTANCE* link_instance, LINK_STATE link_state)
Azure.IoT Build 0:6ae2f7bca550 59 {
Azure.IoT Build 0:6ae2f7bca550 60 link_instance->previous_link_state = link_instance->link_state;
Azure.IoT Build 0:6ae2f7bca550 61 link_instance->link_state = link_state;
Azure.IoT Build 0:6ae2f7bca550 62
Azure.IoT Build 0:6ae2f7bca550 63 if (link_instance->on_link_state_changed != NULL)
Azure.IoT Build 0:6ae2f7bca550 64 {
Azure.IoT Build 0:6ae2f7bca550 65 link_instance->on_link_state_changed(link_instance->callback_context, link_state, link_instance->previous_link_state);
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_flow(LINK_INSTANCE* link)
Azure.IoT Build 0:6ae2f7bca550 70 {
Azure.IoT Build 0:6ae2f7bca550 71 int result;
Azure.IoT Build 0:6ae2f7bca550 72 FLOW_HANDLE flow = flow_create(0, 0, 0);
Azure.IoT Build 0:6ae2f7bca550 73
Azure.IoT Build 0:6ae2f7bca550 74 if (flow == NULL)
Azure.IoT Build 0:6ae2f7bca550 75 {
Azure.IoT Build 0:6ae2f7bca550 76 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 77 }
Azure.IoT Build 0:6ae2f7bca550 78 else
Azure.IoT Build 0:6ae2f7bca550 79 {
Azure.IoT Build 0:6ae2f7bca550 80 if ((flow_set_link_credit(flow, link->link_credit) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 81 (flow_set_handle(flow, link->handle) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 82 (flow_set_delivery_count(flow, link->delivery_count) != 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 if (session_send_flow(link->link_endpoint, flow) != 0)
Azure.IoT Build 0:6ae2f7bca550 89 {
Azure.IoT Build 0:6ae2f7bca550 90 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 91 }
Azure.IoT Build 0:6ae2f7bca550 92 else
Azure.IoT Build 0:6ae2f7bca550 93 {
Azure.IoT Build 0:6ae2f7bca550 94 result = 0;
Azure.IoT Build 0:6ae2f7bca550 95 }
Azure.IoT Build 0:6ae2f7bca550 96 }
Azure.IoT Build 0:6ae2f7bca550 97
Azure.IoT Build 0:6ae2f7bca550 98 flow_destroy(flow);
Azure.IoT Build 0:6ae2f7bca550 99 }
Azure.IoT Build 0:6ae2f7bca550 100
Azure.IoT Build 0:6ae2f7bca550 101 return result;
Azure.IoT Build 0:6ae2f7bca550 102 }
Azure.IoT Build 0:6ae2f7bca550 103
Azure.IoT Build 0:6ae2f7bca550 104 static int send_disposition(LINK_INSTANCE* link_instance, delivery_number delivery_number, AMQP_VALUE delivery_state)
Azure.IoT Build 0:6ae2f7bca550 105 {
Azure.IoT Build 0:6ae2f7bca550 106 int result;
Azure.IoT Build 0:6ae2f7bca550 107
Azure.IoT Build 0:6ae2f7bca550 108 DISPOSITION_HANDLE disposition = disposition_create(link_instance->role, delivery_number);
Azure.IoT Build 0:6ae2f7bca550 109 if (disposition == NULL)
Azure.IoT Build 0:6ae2f7bca550 110 {
Azure.IoT Build 0:6ae2f7bca550 111 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 112 }
Azure.IoT Build 0:6ae2f7bca550 113 else
Azure.IoT Build 0:6ae2f7bca550 114 {
Azure.IoT Build 0:6ae2f7bca550 115 if ((disposition_set_last(disposition, delivery_number) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 116 (disposition_set_settled(disposition, true) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 117 ((delivery_state != NULL) && (disposition_set_state(disposition, delivery_state) != 0)))
Azure.IoT Build 0:6ae2f7bca550 118 {
Azure.IoT Build 0:6ae2f7bca550 119 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 120 }
Azure.IoT Build 0:6ae2f7bca550 121 else
Azure.IoT Build 0:6ae2f7bca550 122 {
Azure.IoT Build 0:6ae2f7bca550 123 if (session_send_disposition(link_instance->link_endpoint, disposition) != 0)
Azure.IoT Build 0:6ae2f7bca550 124 {
Azure.IoT Build 0:6ae2f7bca550 125 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 126 }
Azure.IoT Build 0:6ae2f7bca550 127 else
Azure.IoT Build 0:6ae2f7bca550 128 {
Azure.IoT Build 0:6ae2f7bca550 129 result = 0;
Azure.IoT Build 0:6ae2f7bca550 130 }
Azure.IoT Build 0:6ae2f7bca550 131 }
Azure.IoT Build 0:6ae2f7bca550 132
Azure.IoT Build 0:6ae2f7bca550 133 disposition_destroy(disposition);
Azure.IoT Build 0:6ae2f7bca550 134 }
Azure.IoT Build 0:6ae2f7bca550 135
Azure.IoT Build 0:6ae2f7bca550 136 return result;
Azure.IoT Build 0:6ae2f7bca550 137 }
Azure.IoT Build 0:6ae2f7bca550 138
AzureIoTClient 12:b30dacf113f2 139 static int send_detach(LINK_INSTANCE* link_instance, bool close, ERROR_HANDLE error_handle)
Azure.IoT Build 0:6ae2f7bca550 140 {
Azure.IoT Build 0:6ae2f7bca550 141 int result;
Azure.IoT Build 0:6ae2f7bca550 142 DETACH_HANDLE detach_performative;
Azure.IoT Build 0:6ae2f7bca550 143
Azure.IoT Build 0:6ae2f7bca550 144 detach_performative = detach_create(0);
Azure.IoT Build 0:6ae2f7bca550 145 if (detach_performative == NULL)
Azure.IoT Build 0:6ae2f7bca550 146 {
Azure.IoT Build 0:6ae2f7bca550 147 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 148 }
Azure.IoT Build 0:6ae2f7bca550 149 else
Azure.IoT Build 0:6ae2f7bca550 150 {
Azure.IoT Build 0:6ae2f7bca550 151 if ((error_handle != NULL) &&
Azure.IoT Build 0:6ae2f7bca550 152 (detach_set_error(detach_performative, error_handle) != 0))
Azure.IoT Build 0:6ae2f7bca550 153 {
Azure.IoT Build 0:6ae2f7bca550 154 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 155 }
AzureIoTClient 12:b30dacf113f2 156 else if (close &&
AzureIoTClient 12:b30dacf113f2 157 (detach_set_closed(detach_performative, true) != 0))
AzureIoTClient 12:b30dacf113f2 158 {
AzureIoTClient 12:b30dacf113f2 159 result = __LINE__;
AzureIoTClient 12:b30dacf113f2 160 }
AzureIoTClient 12:b30dacf113f2 161 else
Azure.IoT Build 0:6ae2f7bca550 162 {
Azure.IoT Build 0:6ae2f7bca550 163 if (session_send_detach(link_instance->link_endpoint, detach_performative) != 0)
Azure.IoT Build 0:6ae2f7bca550 164 {
Azure.IoT Build 0:6ae2f7bca550 165 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 166 }
Azure.IoT Build 0:6ae2f7bca550 167 else
Azure.IoT Build 0:6ae2f7bca550 168 {
AzureIoTClient 12:b30dacf113f2 169 if (close)
AzureIoTClient 12:b30dacf113f2 170 {
AzureIoTClient 12:b30dacf113f2 171 /* Declare link to be closed */
AzureIoTClient 12:b30dacf113f2 172 link_instance->is_closed = true;
AzureIoTClient 12:b30dacf113f2 173 }
AzureIoTClient 12:b30dacf113f2 174
Azure.IoT Build 0:6ae2f7bca550 175 result = 0;
Azure.IoT Build 0:6ae2f7bca550 176 }
Azure.IoT Build 0:6ae2f7bca550 177 }
Azure.IoT Build 0:6ae2f7bca550 178
Azure.IoT Build 0:6ae2f7bca550 179 detach_destroy(detach_performative);
Azure.IoT Build 0:6ae2f7bca550 180 }
Azure.IoT Build 0:6ae2f7bca550 181
Azure.IoT Build 0:6ae2f7bca550 182 return result;
Azure.IoT Build 0:6ae2f7bca550 183 }
Azure.IoT Build 0:6ae2f7bca550 184
AzureIoTClient 12:b30dacf113f2 185 static int send_attach(LINK_INSTANCE* link, const char* name, handle handle, role role)
AzureIoTClient 12:b30dacf113f2 186 {
AzureIoTClient 12:b30dacf113f2 187 int result;
AzureIoTClient 12:b30dacf113f2 188 ATTACH_HANDLE attach = attach_create(name, handle, role);
AzureIoTClient 12:b30dacf113f2 189
AzureIoTClient 12:b30dacf113f2 190 if (attach == NULL)
AzureIoTClient 12:b30dacf113f2 191 {
AzureIoTClient 12:b30dacf113f2 192 result = __LINE__;
AzureIoTClient 12:b30dacf113f2 193 }
AzureIoTClient 12:b30dacf113f2 194 else
AzureIoTClient 12:b30dacf113f2 195 {
AzureIoTClient 12:b30dacf113f2 196 result = 0;
AzureIoTClient 12:b30dacf113f2 197
AzureIoTClient 12:b30dacf113f2 198 link->delivery_count = link->initial_delivery_count;
AzureIoTClient 12:b30dacf113f2 199
AzureIoTClient 12:b30dacf113f2 200 attach_set_snd_settle_mode(attach, link->snd_settle_mode);
AzureIoTClient 12:b30dacf113f2 201 attach_set_rcv_settle_mode(attach, link->rcv_settle_mode);
AzureIoTClient 12:b30dacf113f2 202 attach_set_role(attach, role);
AzureIoTClient 12:b30dacf113f2 203 attach_set_source(attach, link->source);
AzureIoTClient 12:b30dacf113f2 204 attach_set_target(attach, link->target);
AzureIoTClient 12:b30dacf113f2 205 attach_set_properties(attach, link->attach_properties);
AzureIoTClient 12:b30dacf113f2 206
AzureIoTClient 12:b30dacf113f2 207 if (role == role_sender)
AzureIoTClient 12:b30dacf113f2 208 {
AzureIoTClient 12:b30dacf113f2 209 if (attach_set_initial_delivery_count(attach, link->delivery_count) != 0)
AzureIoTClient 12:b30dacf113f2 210 {
AzureIoTClient 12:b30dacf113f2 211 result = __LINE__;
AzureIoTClient 12:b30dacf113f2 212 }
AzureIoTClient 12:b30dacf113f2 213 }
AzureIoTClient 12:b30dacf113f2 214
AzureIoTClient 12:b30dacf113f2 215 if (result == 0)
AzureIoTClient 12:b30dacf113f2 216 {
AzureIoTClient 12:b30dacf113f2 217 if ((attach_set_max_message_size(attach, link->max_message_size) != 0) ||
AzureIoTClient 12:b30dacf113f2 218 (session_send_attach(link->link_endpoint, attach) != 0))
AzureIoTClient 12:b30dacf113f2 219 {
AzureIoTClient 12:b30dacf113f2 220 result = __LINE__;
AzureIoTClient 12:b30dacf113f2 221 }
AzureIoTClient 12:b30dacf113f2 222 else
AzureIoTClient 12:b30dacf113f2 223 {
AzureIoTClient 12:b30dacf113f2 224 result = 0;
AzureIoTClient 12:b30dacf113f2 225 }
AzureIoTClient 12:b30dacf113f2 226 }
AzureIoTClient 12:b30dacf113f2 227
AzureIoTClient 12:b30dacf113f2 228 attach_destroy(attach);
AzureIoTClient 12:b30dacf113f2 229 }
AzureIoTClient 12:b30dacf113f2 230
AzureIoTClient 12:b30dacf113f2 231 return result;
AzureIoTClient 12:b30dacf113f2 232 }
AzureIoTClient 12:b30dacf113f2 233
Azure.IoT Build 0:6ae2f7bca550 234 static void link_frame_received(void* context, AMQP_VALUE performative, uint32_t payload_size, const unsigned char* payload_bytes)
Azure.IoT Build 0:6ae2f7bca550 235 {
Azure.IoT Build 0:6ae2f7bca550 236 LINK_INSTANCE* link_instance = (LINK_INSTANCE*)context;
Azure.IoT Build 0:6ae2f7bca550 237 AMQP_VALUE descriptor = amqpvalue_get_inplace_descriptor(performative);
Azure.IoT Build 0:6ae2f7bca550 238
Azure.IoT Build 0:6ae2f7bca550 239 if (is_attach_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 240 {
Azure.IoT Build 0:6ae2f7bca550 241 ATTACH_HANDLE attach_handle;
Azure.IoT Build 0:6ae2f7bca550 242 if (amqpvalue_get_attach(performative, &attach_handle) == 0)
Azure.IoT Build 0:6ae2f7bca550 243 {
Azure.IoT Build 0:6ae2f7bca550 244 if ((link_instance->role == role_receiver) &&
Azure.IoT Build 0:6ae2f7bca550 245 (attach_get_initial_delivery_count(attach_handle, &link_instance->delivery_count) != 0))
Azure.IoT Build 0:6ae2f7bca550 246 {
Azure.IoT Build 0:6ae2f7bca550 247 /* error */
Azure.IoT Build 0:6ae2f7bca550 248 set_link_state(link_instance, LINK_STATE_DETACHED);
Azure.IoT Build 0:6ae2f7bca550 249 }
Azure.IoT Build 0:6ae2f7bca550 250 else
Azure.IoT Build 0:6ae2f7bca550 251 {
Azure.IoT Build 0:6ae2f7bca550 252 if (link_instance->link_state == LINK_STATE_HALF_ATTACHED)
Azure.IoT Build 0:6ae2f7bca550 253 {
Azure.IoT Build 0:6ae2f7bca550 254 if (link_instance->role == role_receiver)
Azure.IoT Build 0:6ae2f7bca550 255 {
Azure.IoT Build 0:6ae2f7bca550 256 link_instance->link_credit = DEFAULT_LINK_CREDIT;
Azure.IoT Build 0:6ae2f7bca550 257 send_flow(link_instance);
Azure.IoT Build 0:6ae2f7bca550 258 }
Azure.IoT Build 0:6ae2f7bca550 259 else
Azure.IoT Build 0:6ae2f7bca550 260 {
Azure.IoT Build 0:6ae2f7bca550 261 link_instance->link_credit = 0;
Azure.IoT Build 0:6ae2f7bca550 262 }
Azure.IoT Build 0:6ae2f7bca550 263
Azure.IoT Build 0:6ae2f7bca550 264 set_link_state(link_instance, LINK_STATE_ATTACHED);
Azure.IoT Build 0:6ae2f7bca550 265 }
Azure.IoT Build 0:6ae2f7bca550 266 }
Azure.IoT Build 0:6ae2f7bca550 267
Azure.IoT Build 0:6ae2f7bca550 268 attach_destroy(attach_handle);
Azure.IoT Build 0:6ae2f7bca550 269 }
Azure.IoT Build 0:6ae2f7bca550 270 }
Azure.IoT Build 0:6ae2f7bca550 271 else if (is_flow_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 272 {
Azure.IoT Build 0:6ae2f7bca550 273 FLOW_HANDLE flow_handle;
Azure.IoT Build 0:6ae2f7bca550 274 if (amqpvalue_get_flow(performative, &flow_handle) == 0)
Azure.IoT Build 0:6ae2f7bca550 275 {
Azure.IoT Build 0:6ae2f7bca550 276 if (link_instance->role == role_sender)
Azure.IoT Build 0:6ae2f7bca550 277 {
Azure.IoT Build 0:6ae2f7bca550 278 delivery_number rcv_delivery_count;
Azure.IoT Build 0:6ae2f7bca550 279 uint32_t rcv_link_credit;
Azure.IoT Build 0:6ae2f7bca550 280
Azure.IoT Build 0:6ae2f7bca550 281 if ((flow_get_link_credit(flow_handle, &rcv_link_credit) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 282 (flow_get_delivery_count(flow_handle, &rcv_delivery_count) != 0))
Azure.IoT Build 0:6ae2f7bca550 283 {
Azure.IoT Build 0:6ae2f7bca550 284 /* error */
Azure.IoT Build 0:6ae2f7bca550 285 set_link_state(link_instance, LINK_STATE_DETACHED);
Azure.IoT Build 0:6ae2f7bca550 286 }
Azure.IoT Build 0:6ae2f7bca550 287 else
Azure.IoT Build 0:6ae2f7bca550 288 {
Azure.IoT Build 0:6ae2f7bca550 289 link_instance->link_credit = rcv_delivery_count + rcv_link_credit - link_instance->delivery_count;
Azure.IoT Build 0:6ae2f7bca550 290 if (link_instance->link_credit > 0)
Azure.IoT Build 0:6ae2f7bca550 291 {
Azure.IoT Build 0:6ae2f7bca550 292 link_instance->on_link_flow_on(link_instance->callback_context);
Azure.IoT Build 0:6ae2f7bca550 293 }
Azure.IoT Build 0:6ae2f7bca550 294 }
Azure.IoT Build 0:6ae2f7bca550 295 }
Azure.IoT Build 0:6ae2f7bca550 296 }
Azure.IoT Build 0:6ae2f7bca550 297
Azure.IoT Build 0:6ae2f7bca550 298 flow_destroy(flow_handle);
Azure.IoT Build 0:6ae2f7bca550 299 }
Azure.IoT Build 0:6ae2f7bca550 300 else if (is_transfer_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 301 {
Azure.IoT Build 0:6ae2f7bca550 302 if (link_instance->on_transfer_received != NULL)
Azure.IoT Build 0:6ae2f7bca550 303 {
Azure.IoT Build 0:6ae2f7bca550 304 TRANSFER_HANDLE transfer_handle;
Azure.IoT Build 0:6ae2f7bca550 305 if (amqpvalue_get_transfer(performative, &transfer_handle) == 0)
Azure.IoT Build 0:6ae2f7bca550 306 {
Azure.IoT Build 0:6ae2f7bca550 307 AMQP_VALUE delivery_state;
AzureIoTClient 12:b30dacf113f2 308 bool more;
AzureIoTClient 13:9abd748f4e78 309 bool is_error;
Azure.IoT Build 0:6ae2f7bca550 310
Azure.IoT Build 0:6ae2f7bca550 311 link_instance->link_credit--;
Azure.IoT Build 0:6ae2f7bca550 312 link_instance->delivery_count++;
Azure.IoT Build 0:6ae2f7bca550 313 if (link_instance->link_credit == 0)
Azure.IoT Build 0:6ae2f7bca550 314 {
Azure.IoT Build 0:6ae2f7bca550 315 link_instance->link_credit = DEFAULT_LINK_CREDIT;
Azure.IoT Build 0:6ae2f7bca550 316 send_flow(link_instance);
Azure.IoT Build 0:6ae2f7bca550 317 }
Azure.IoT Build 0:6ae2f7bca550 318
AzureIoTClient 13:9abd748f4e78 319 more = false;
AzureIoTClient 13:9abd748f4e78 320 /* Attempt to get more flag, default to false */
AzureIoTClient 13:9abd748f4e78 321 (void)transfer_get_more(transfer_handle, &more);
AzureIoTClient 13:9abd748f4e78 322 is_error = false;
AzureIoTClient 12:b30dacf113f2 323
AzureIoTClient 13:9abd748f4e78 324 if (transfer_get_delivery_id(transfer_handle, &link_instance->received_delivery_id) != 0)
AzureIoTClient 13:9abd748f4e78 325 {
AzureIoTClient 13:9abd748f4e78 326 /* is this not a continuation transfer? */
AzureIoTClient 13:9abd748f4e78 327 if (link_instance->received_payload_size == 0)
AzureIoTClient 12:b30dacf113f2 328 {
AzureIoTClient 13:9abd748f4e78 329 LogError("Could not get the delivery Id from the transfer performative");
AzureIoTClient 13:9abd748f4e78 330 is_error = true;
AzureIoTClient 13:9abd748f4e78 331 }
AzureIoTClient 13:9abd748f4e78 332 }
AzureIoTClient 13:9abd748f4e78 333
AzureIoTClient 13:9abd748f4e78 334 if (!is_error)
AzureIoTClient 13:9abd748f4e78 335 {
AzureIoTClient 13:9abd748f4e78 336 /* If this is a continuation transfer or if this is the first chunk of a multi frame transfer */
AzureIoTClient 13:9abd748f4e78 337 if ((link_instance->received_payload_size > 0) || more)
AzureIoTClient 13:9abd748f4e78 338 {
AzureIoTClient 13:9abd748f4e78 339 unsigned char* new_received_payload = (unsigned char*)realloc(link_instance->received_payload, link_instance->received_payload_size + payload_size);
AzureIoTClient 13:9abd748f4e78 340 if (new_received_payload == NULL)
AzureIoTClient 12:b30dacf113f2 341 {
AzureIoTClient 13:9abd748f4e78 342 LogError("Could not allocate memory for the received payload");
AzureIoTClient 13:9abd748f4e78 343 }
AzureIoTClient 13:9abd748f4e78 344 else
AzureIoTClient 13:9abd748f4e78 345 {
AzureIoTClient 13:9abd748f4e78 346 link_instance->received_payload = new_received_payload;
AzureIoTClient 13:9abd748f4e78 347 (void)memcpy(link_instance->received_payload + link_instance->received_payload_size, payload_bytes, payload_size);
AzureIoTClient 13:9abd748f4e78 348 link_instance->received_payload_size += payload_size;
AzureIoTClient 12:b30dacf113f2 349 }
AzureIoTClient 12:b30dacf113f2 350 }
AzureIoTClient 13:9abd748f4e78 351
AzureIoTClient 13:9abd748f4e78 352 if (!more)
AzureIoTClient 12:b30dacf113f2 353 {
AzureIoTClient 13:9abd748f4e78 354 const unsigned char* indicate_payload_bytes;
AzureIoTClient 13:9abd748f4e78 355 uint32_t indicate_payload_size;
AzureIoTClient 13:9abd748f4e78 356
AzureIoTClient 13:9abd748f4e78 357 /* if no previously stored chunks then simply report the current payload */
AzureIoTClient 13:9abd748f4e78 358 if (link_instance->received_payload_size > 0)
AzureIoTClient 12:b30dacf113f2 359 {
AzureIoTClient 13:9abd748f4e78 360 indicate_payload_size = link_instance->received_payload_size;
AzureIoTClient 13:9abd748f4e78 361 indicate_payload_bytes = link_instance->received_payload;
AzureIoTClient 13:9abd748f4e78 362 }
AzureIoTClient 13:9abd748f4e78 363 else
AzureIoTClient 13:9abd748f4e78 364 {
AzureIoTClient 13:9abd748f4e78 365 indicate_payload_size = payload_size;
AzureIoTClient 13:9abd748f4e78 366 indicate_payload_bytes = payload_bytes;
AzureIoTClient 12:b30dacf113f2 367 }
Azure.IoT Build 0:6ae2f7bca550 368
AzureIoTClient 13:9abd748f4e78 369 delivery_state = link_instance->on_transfer_received(link_instance->callback_context, transfer_handle, indicate_payload_size, indicate_payload_bytes);
AzureIoTClient 12:b30dacf113f2 370
AzureIoTClient 13:9abd748f4e78 371 if (link_instance->received_payload_size > 0)
AzureIoTClient 13:9abd748f4e78 372 {
AzureIoTClient 13:9abd748f4e78 373 free(link_instance->received_payload);
AzureIoTClient 13:9abd748f4e78 374 link_instance->received_payload = NULL;
AzureIoTClient 13:9abd748f4e78 375 link_instance->received_payload_size = 0;
AzureIoTClient 13:9abd748f4e78 376 }
AzureIoTClient 12:b30dacf113f2 377
AzureIoTClient 13:9abd748f4e78 378 if (send_disposition(link_instance, link_instance->received_delivery_id, delivery_state) != 0)
AzureIoTClient 13:9abd748f4e78 379 {
AzureIoTClient 13:9abd748f4e78 380 LogError("Cannot send disposition frame");
AzureIoTClient 13:9abd748f4e78 381 }
AzureIoTClient 12:b30dacf113f2 382
AzureIoTClient 13:9abd748f4e78 383 if (delivery_state != NULL)
AzureIoTClient 13:9abd748f4e78 384 {
AzureIoTClient 13:9abd748f4e78 385 amqpvalue_destroy(delivery_state);
AzureIoTClient 12:b30dacf113f2 386 }
AzureIoTClient 12:b30dacf113f2 387 }
AzureIoTClient 12:b30dacf113f2 388 }
Azure.IoT Build 0:6ae2f7bca550 389
Azure.IoT Build 0:6ae2f7bca550 390 transfer_destroy(transfer_handle);
Azure.IoT Build 0:6ae2f7bca550 391 }
Azure.IoT Build 0:6ae2f7bca550 392 }
Azure.IoT Build 0:6ae2f7bca550 393 }
Azure.IoT Build 0:6ae2f7bca550 394 else if (is_disposition_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 395 {
Azure.IoT Build 0:6ae2f7bca550 396 DISPOSITION_HANDLE disposition;
Azure.IoT Build 0:6ae2f7bca550 397 if (amqpvalue_get_disposition(performative, &disposition) != 0)
Azure.IoT Build 0:6ae2f7bca550 398 {
Azure.IoT Build 0:6ae2f7bca550 399 /* error */
Azure.IoT Build 0:6ae2f7bca550 400 }
Azure.IoT Build 0:6ae2f7bca550 401 else
Azure.IoT Build 0:6ae2f7bca550 402 {
Azure.IoT Build 0:6ae2f7bca550 403 delivery_number first;
Azure.IoT Build 0:6ae2f7bca550 404 delivery_number last;
Azure.IoT Build 0:6ae2f7bca550 405
Azure.IoT Build 0:6ae2f7bca550 406 if (disposition_get_first(disposition, &first) != 0)
Azure.IoT Build 0:6ae2f7bca550 407 {
Azure.IoT Build 0:6ae2f7bca550 408 /* error */
Azure.IoT Build 0:6ae2f7bca550 409 }
Azure.IoT Build 0:6ae2f7bca550 410 else
Azure.IoT Build 0:6ae2f7bca550 411 {
Azure.IoT Build 0:6ae2f7bca550 412 bool settled;
Azure.IoT Build 0:6ae2f7bca550 413
Azure.IoT Build 0:6ae2f7bca550 414 if (disposition_get_last(disposition, &last) != 0)
Azure.IoT Build 0:6ae2f7bca550 415 {
Azure.IoT Build 0:6ae2f7bca550 416 last = first;
Azure.IoT Build 0:6ae2f7bca550 417 }
Azure.IoT Build 0:6ae2f7bca550 418
Azure.IoT Build 0:6ae2f7bca550 419 if (disposition_get_settled(disposition, &settled) != 0)
Azure.IoT Build 0:6ae2f7bca550 420 {
Azure.IoT Build 0:6ae2f7bca550 421 /* Error */
Azure.IoT Build 0:6ae2f7bca550 422 settled = false;
Azure.IoT Build 0:6ae2f7bca550 423 }
Azure.IoT Build 0:6ae2f7bca550 424
Azure.IoT Build 0:6ae2f7bca550 425 if (settled)
Azure.IoT Build 0:6ae2f7bca550 426 {
AzureIoTClient 12:b30dacf113f2 427 LIST_ITEM_HANDLE pending_delivery = singlylinkedlist_get_head_item(link_instance->pending_deliveries);
Azure.IoT Build 0:6ae2f7bca550 428 while (pending_delivery != NULL)
Azure.IoT Build 0:6ae2f7bca550 429 {
AzureIoTClient 12:b30dacf113f2 430 LIST_ITEM_HANDLE next_pending_delivery = singlylinkedlist_get_next_item(pending_delivery);
AzureIoTClient 12:b30dacf113f2 431 DELIVERY_INSTANCE* delivery_instance = (DELIVERY_INSTANCE*)singlylinkedlist_item_get_value(pending_delivery);
Azure.IoT Build 0:6ae2f7bca550 432 if (delivery_instance == NULL)
Azure.IoT Build 0:6ae2f7bca550 433 {
Azure.IoT Build 0:6ae2f7bca550 434 /* error */
Azure.IoT Build 0:6ae2f7bca550 435 break;
Azure.IoT Build 0:6ae2f7bca550 436 }
Azure.IoT Build 0:6ae2f7bca550 437 else
Azure.IoT Build 0:6ae2f7bca550 438 {
Azure.IoT Build 0:6ae2f7bca550 439 if ((delivery_instance->delivery_id >= first) && (delivery_instance->delivery_id <= last))
Azure.IoT Build 0:6ae2f7bca550 440 {
AzureIoTClient 7:9e9ab3b0efef 441 AMQP_VALUE delivery_state;
AzureIoTClient 7:9e9ab3b0efef 442 if (disposition_get_state(disposition, &delivery_state) != 0)
Azure.IoT Build 0:6ae2f7bca550 443 {
Azure.IoT Build 0:6ae2f7bca550 444 /* error */
Azure.IoT Build 0:6ae2f7bca550 445 }
Azure.IoT Build 0:6ae2f7bca550 446 else
Azure.IoT Build 0:6ae2f7bca550 447 {
AzureIoTClient 7:9e9ab3b0efef 448 delivery_instance->on_delivery_settled(delivery_instance->callback_context, delivery_instance->delivery_id, delivery_state);
AzureIoTClient 7:9e9ab3b0efef 449 amqpalloc_free(delivery_instance);
AzureIoTClient 12:b30dacf113f2 450 if (singlylinkedlist_remove(link_instance->pending_deliveries, pending_delivery) != 0)
AzureIoTClient 7:9e9ab3b0efef 451 {
AzureIoTClient 7:9e9ab3b0efef 452 /* error */
AzureIoTClient 7:9e9ab3b0efef 453 break;
AzureIoTClient 7:9e9ab3b0efef 454 }
AzureIoTClient 7:9e9ab3b0efef 455 else
AzureIoTClient 7:9e9ab3b0efef 456 {
AzureIoTClient 7:9e9ab3b0efef 457 pending_delivery = next_pending_delivery;
AzureIoTClient 7:9e9ab3b0efef 458 }
Azure.IoT Build 0:6ae2f7bca550 459 }
Azure.IoT Build 0:6ae2f7bca550 460 }
Azure.IoT Build 0:6ae2f7bca550 461 else
Azure.IoT Build 0:6ae2f7bca550 462 {
Azure.IoT Build 0:6ae2f7bca550 463 pending_delivery = next_pending_delivery;
Azure.IoT Build 0:6ae2f7bca550 464 }
Azure.IoT Build 0:6ae2f7bca550 465 }
Azure.IoT Build 0:6ae2f7bca550 466 }
Azure.IoT Build 0:6ae2f7bca550 467 }
Azure.IoT Build 0:6ae2f7bca550 468 }
Azure.IoT Build 0:6ae2f7bca550 469
Azure.IoT Build 0:6ae2f7bca550 470 disposition_destroy(disposition);
Azure.IoT Build 0:6ae2f7bca550 471 }
Azure.IoT Build 0:6ae2f7bca550 472 }
Azure.IoT Build 0:6ae2f7bca550 473 else if (is_detach_type_by_descriptor(descriptor))
Azure.IoT Build 0:6ae2f7bca550 474 {
AzureIoTClient 1:eab586236bfe 475 DETACH_HANDLE detach;
AzureIoTClient 1:eab586236bfe 476
AzureIoTClient 1:eab586236bfe 477 /* Set link state appropriately based on whether we received detach condition */
AzureIoTClient 1:eab586236bfe 478 if (amqpvalue_get_detach(performative, &detach) == 0)
AzureIoTClient 1:eab586236bfe 479 {
AzureIoTClient 12:b30dacf113f2 480 bool closed = false;
AzureIoTClient 1:eab586236bfe 481 ERROR_HANDLE error;
AzureIoTClient 1:eab586236bfe 482 if (detach_get_error(detach, &error) == 0)
AzureIoTClient 1:eab586236bfe 483 {
AzureIoTClient 1:eab586236bfe 484 error_destroy(error);
AzureIoTClient 1:eab586236bfe 485
AzureIoTClient 1:eab586236bfe 486 set_link_state(link_instance, LINK_STATE_ERROR);
AzureIoTClient 1:eab586236bfe 487 }
AzureIoTClient 12:b30dacf113f2 488 else
AzureIoTClient 1:eab586236bfe 489 {
AzureIoTClient 12:b30dacf113f2 490 (void)detach_get_closed(detach, &closed);
AzureIoTClient 12:b30dacf113f2 491
AzureIoTClient 1:eab586236bfe 492 set_link_state(link_instance, LINK_STATE_DETACHED);
AzureIoTClient 1:eab586236bfe 493 }
AzureIoTClient 12:b30dacf113f2 494
AzureIoTClient 12:b30dacf113f2 495 /* Received a detach while attached */
AzureIoTClient 12:b30dacf113f2 496 if (link_instance->previous_link_state == LINK_STATE_ATTACHED)
AzureIoTClient 12:b30dacf113f2 497 {
AzureIoTClient 12:b30dacf113f2 498 /* Respond with ack */
AzureIoTClient 12:b30dacf113f2 499 (void)send_detach(link_instance, closed, NULL);
AzureIoTClient 12:b30dacf113f2 500 }
AzureIoTClient 12:b30dacf113f2 501
AzureIoTClient 12:b30dacf113f2 502 /* Received a closing detach after we sent a non-closing detach. */
AzureIoTClient 12:b30dacf113f2 503 else if (closed &&
AzureIoTClient 12:b30dacf113f2 504 (link_instance->previous_link_state == LINK_STATE_HALF_ATTACHED) &&
AzureIoTClient 12:b30dacf113f2 505 !link_instance->is_closed)
AzureIoTClient 12:b30dacf113f2 506 {
AzureIoTClient 12:b30dacf113f2 507
AzureIoTClient 12:b30dacf113f2 508 /* In this case, we MUST signal that we closed by reattaching and then sending a closing detach.*/
AzureIoTClient 12:b30dacf113f2 509 (void)send_attach(link_instance, link_instance->name, 0, link_instance->role);
AzureIoTClient 12:b30dacf113f2 510 (void)send_detach(link_instance, true, NULL);
AzureIoTClient 12:b30dacf113f2 511 }
AzureIoTClient 12:b30dacf113f2 512
AzureIoTClient 12:b30dacf113f2 513 detach_destroy(detach);
AzureIoTClient 1:eab586236bfe 514 }
AzureIoTClient 1:eab586236bfe 515 }
Azure.IoT Build 0:6ae2f7bca550 516 }
Azure.IoT Build 0:6ae2f7bca550 517
Azure.IoT Build 0:6ae2f7bca550 518 static void on_session_state_changed(void* context, SESSION_STATE new_session_state, SESSION_STATE previous_session_state)
Azure.IoT Build 0:6ae2f7bca550 519 {
Azure.IoT Build 0:6ae2f7bca550 520 LINK_INSTANCE* link_instance = (LINK_INSTANCE*)context;
AzureIoTClient 6:641a9672db08 521 (void)previous_session_state;
Azure.IoT Build 0:6ae2f7bca550 522
Azure.IoT Build 0:6ae2f7bca550 523 if (new_session_state == SESSION_STATE_MAPPED)
Azure.IoT Build 0:6ae2f7bca550 524 {
AzureIoTClient 12:b30dacf113f2 525 if ((link_instance->link_state == LINK_STATE_DETACHED) && (!link_instance->is_closed))
Azure.IoT Build 0:6ae2f7bca550 526 {
Azure.IoT Build 0:6ae2f7bca550 527 if (send_attach(link_instance, link_instance->name, 0, link_instance->role) == 0)
Azure.IoT Build 0:6ae2f7bca550 528 {
Azure.IoT Build 0:6ae2f7bca550 529 set_link_state(link_instance, LINK_STATE_HALF_ATTACHED);
Azure.IoT Build 0:6ae2f7bca550 530 }
Azure.IoT Build 0:6ae2f7bca550 531 }
Azure.IoT Build 0:6ae2f7bca550 532 }
Azure.IoT Build 0:6ae2f7bca550 533 else if (new_session_state == SESSION_STATE_DISCARDING)
Azure.IoT Build 0:6ae2f7bca550 534 {
Azure.IoT Build 0:6ae2f7bca550 535 set_link_state(link_instance, LINK_STATE_DETACHED);
Azure.IoT Build 0:6ae2f7bca550 536 }
AzureIoTClient 1:eab586236bfe 537 else if (new_session_state == SESSION_STATE_ERROR)
AzureIoTClient 1:eab586236bfe 538 {
AzureIoTClient 1:eab586236bfe 539 set_link_state(link_instance, LINK_STATE_ERROR);
AzureIoTClient 1:eab586236bfe 540 }
Azure.IoT Build 0:6ae2f7bca550 541 }
Azure.IoT Build 0:6ae2f7bca550 542
Azure.IoT Build 0:6ae2f7bca550 543 static void on_session_flow_on(void* context)
Azure.IoT Build 0:6ae2f7bca550 544 {
Azure.IoT Build 0:6ae2f7bca550 545 LINK_INSTANCE* link_instance = (LINK_INSTANCE*)context;
Azure.IoT Build 0:6ae2f7bca550 546 if (link_instance->role == role_sender)
Azure.IoT Build 0:6ae2f7bca550 547 {
Azure.IoT Build 0:6ae2f7bca550 548 link_instance->on_link_flow_on(link_instance->callback_context);
Azure.IoT Build 0:6ae2f7bca550 549 }
Azure.IoT Build 0:6ae2f7bca550 550 }
Azure.IoT Build 0:6ae2f7bca550 551
Azure.IoT Build 0:6ae2f7bca550 552 static void on_send_complete(void* context, IO_SEND_RESULT send_result)
Azure.IoT Build 0:6ae2f7bca550 553 {
Azure.IoT Build 0:6ae2f7bca550 554 LIST_ITEM_HANDLE delivery_instance_list_item = (LIST_ITEM_HANDLE)context;
AzureIoTClient 12:b30dacf113f2 555 DELIVERY_INSTANCE* delivery_instance = (DELIVERY_INSTANCE*)singlylinkedlist_item_get_value(delivery_instance_list_item);
Azure.IoT Build 0:6ae2f7bca550 556 LINK_INSTANCE* link_instance = (LINK_INSTANCE*)delivery_instance->link;
AzureIoTClient 6:641a9672db08 557 (void)send_result;
Azure.IoT Build 0:6ae2f7bca550 558 if (link_instance->snd_settle_mode == sender_settle_mode_settled)
Azure.IoT Build 0:6ae2f7bca550 559 {
AzureIoTClient 7:9e9ab3b0efef 560 delivery_instance->on_delivery_settled(delivery_instance->callback_context, delivery_instance->delivery_id, NULL);
Azure.IoT Build 0:6ae2f7bca550 561 amqpalloc_free(delivery_instance);
AzureIoTClient 12:b30dacf113f2 562 (void)singlylinkedlist_remove(link_instance->pending_deliveries, delivery_instance_list_item);
Azure.IoT Build 0:6ae2f7bca550 563 }
Azure.IoT Build 0:6ae2f7bca550 564 }
Azure.IoT Build 0:6ae2f7bca550 565
Azure.IoT Build 0:6ae2f7bca550 566 LINK_HANDLE link_create(SESSION_HANDLE session, const char* name, role role, AMQP_VALUE source, AMQP_VALUE target)
Azure.IoT Build 0:6ae2f7bca550 567 {
Azure.IoT Build 0:6ae2f7bca550 568 LINK_INSTANCE* result = amqpalloc_malloc(sizeof(LINK_INSTANCE));
Azure.IoT Build 0:6ae2f7bca550 569 if (result != NULL)
Azure.IoT Build 0:6ae2f7bca550 570 {
Azure.IoT Build 0:6ae2f7bca550 571 result->link_state = LINK_STATE_DETACHED;
Azure.IoT Build 0:6ae2f7bca550 572 result->previous_link_state = LINK_STATE_DETACHED;
Azure.IoT Build 0:6ae2f7bca550 573 result->role = role;
Azure.IoT Build 0:6ae2f7bca550 574 result->source = amqpvalue_clone(source);
Azure.IoT Build 0:6ae2f7bca550 575 result->target = amqpvalue_clone(target);
Azure.IoT Build 0:6ae2f7bca550 576 result->session = session;
Azure.IoT Build 0:6ae2f7bca550 577 result->handle = 0;
Azure.IoT Build 0:6ae2f7bca550 578 result->snd_settle_mode = sender_settle_mode_unsettled;
Azure.IoT Build 0:6ae2f7bca550 579 result->rcv_settle_mode = receiver_settle_mode_first;
Azure.IoT Build 0:6ae2f7bca550 580 result->delivery_count = 0;
Azure.IoT Build 0:6ae2f7bca550 581 result->initial_delivery_count = 0;
Azure.IoT Build 0:6ae2f7bca550 582 result->max_message_size = 0;
AzureIoTClient 12:b30dacf113f2 583 result->is_underlying_session_begun = false;
AzureIoTClient 12:b30dacf113f2 584 result->is_closed = false;
Azure.IoT Build 0:6ae2f7bca550 585 result->attach_properties = NULL;
AzureIoTClient 12:b30dacf113f2 586 result->received_payload = NULL;
AzureIoTClient 12:b30dacf113f2 587 result->received_payload_size = 0;
AzureIoTClient 12:b30dacf113f2 588 result->received_delivery_id = 0;
Azure.IoT Build 0:6ae2f7bca550 589
AzureIoTClient 12:b30dacf113f2 590 result->pending_deliveries = singlylinkedlist_create();
Azure.IoT Build 0:6ae2f7bca550 591 if (result->pending_deliveries == NULL)
Azure.IoT Build 0:6ae2f7bca550 592 {
Azure.IoT Build 0:6ae2f7bca550 593 amqpalloc_free(result);
Azure.IoT Build 0:6ae2f7bca550 594 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 595 }
Azure.IoT Build 0:6ae2f7bca550 596 else
Azure.IoT Build 0:6ae2f7bca550 597 {
Azure.IoT Build 0:6ae2f7bca550 598 result->name = amqpalloc_malloc(strlen(name) + 1);
Azure.IoT Build 0:6ae2f7bca550 599 if (result->name == NULL)
Azure.IoT Build 0:6ae2f7bca550 600 {
AzureIoTClient 12:b30dacf113f2 601 singlylinkedlist_destroy(result->pending_deliveries);
Azure.IoT Build 0:6ae2f7bca550 602 amqpalloc_free(result);
Azure.IoT Build 0:6ae2f7bca550 603 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 604 }
Azure.IoT Build 0:6ae2f7bca550 605 else
Azure.IoT Build 0:6ae2f7bca550 606 {
Azure.IoT Build 0:6ae2f7bca550 607 result->on_link_state_changed = NULL;
Azure.IoT Build 0:6ae2f7bca550 608 result->callback_context = NULL;
Azure.IoT Build 0:6ae2f7bca550 609 set_link_state(result, LINK_STATE_DETACHED);
Azure.IoT Build 0:6ae2f7bca550 610
Azure.IoT Build 0:6ae2f7bca550 611 (void)strcpy(result->name, name);
Azure.IoT Build 0:6ae2f7bca550 612 result->link_endpoint = session_create_link_endpoint(session, name);
Azure.IoT Build 0:6ae2f7bca550 613 if (result->link_endpoint == NULL)
Azure.IoT Build 0:6ae2f7bca550 614 {
AzureIoTClient 12:b30dacf113f2 615 singlylinkedlist_destroy(result->pending_deliveries);
Azure.IoT Build 0:6ae2f7bca550 616 amqpalloc_free(result->name);
Azure.IoT Build 0:6ae2f7bca550 617 amqpalloc_free(result);
Azure.IoT Build 0:6ae2f7bca550 618 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 619 }
Azure.IoT Build 0:6ae2f7bca550 620 }
Azure.IoT Build 0:6ae2f7bca550 621 }
Azure.IoT Build 0:6ae2f7bca550 622 }
Azure.IoT Build 0:6ae2f7bca550 623
Azure.IoT Build 0:6ae2f7bca550 624 return result;
Azure.IoT Build 0:6ae2f7bca550 625 }
Azure.IoT Build 0:6ae2f7bca550 626
Azure.IoT Build 0:6ae2f7bca550 627 LINK_HANDLE link_create_from_endpoint(SESSION_HANDLE session, LINK_ENDPOINT_HANDLE link_endpoint, const char* name, role role, AMQP_VALUE source, AMQP_VALUE target)
Azure.IoT Build 0:6ae2f7bca550 628 {
Azure.IoT Build 0:6ae2f7bca550 629 LINK_INSTANCE* result = amqpalloc_malloc(sizeof(LINK_INSTANCE));
Azure.IoT Build 0:6ae2f7bca550 630 if (result != NULL)
Azure.IoT Build 0:6ae2f7bca550 631 {
Azure.IoT Build 0:6ae2f7bca550 632 result->link_state = LINK_STATE_DETACHED;
Azure.IoT Build 0:6ae2f7bca550 633 result->previous_link_state = LINK_STATE_DETACHED;
Azure.IoT Build 0:6ae2f7bca550 634 result->session = session;
Azure.IoT Build 0:6ae2f7bca550 635 result->handle = 0;
Azure.IoT Build 0:6ae2f7bca550 636 result->snd_settle_mode = sender_settle_mode_unsettled;
Azure.IoT Build 0:6ae2f7bca550 637 result->rcv_settle_mode = receiver_settle_mode_first;
Azure.IoT Build 0:6ae2f7bca550 638 result->delivery_count = 0;
Azure.IoT Build 0:6ae2f7bca550 639 result->initial_delivery_count = 0;
Azure.IoT Build 0:6ae2f7bca550 640 result->max_message_size = 0;
AzureIoTClient 12:b30dacf113f2 641 result->is_underlying_session_begun = false;
AzureIoTClient 12:b30dacf113f2 642 result->is_closed = false;
Azure.IoT Build 0:6ae2f7bca550 643 result->attach_properties = NULL;
AzureIoTClient 12:b30dacf113f2 644 result->received_payload = NULL;
AzureIoTClient 12:b30dacf113f2 645 result->received_payload_size = 0;
AzureIoTClient 12:b30dacf113f2 646 result->received_delivery_id = 0;
Azure.IoT Build 0:6ae2f7bca550 647 result->source = amqpvalue_clone(target);
Azure.IoT Build 0:6ae2f7bca550 648 result->target = amqpvalue_clone(source);
Azure.IoT Build 0:6ae2f7bca550 649 if (role == role_sender)
Azure.IoT Build 0:6ae2f7bca550 650 {
Azure.IoT Build 0:6ae2f7bca550 651 result->role = role_receiver;
Azure.IoT Build 0:6ae2f7bca550 652 }
Azure.IoT Build 0:6ae2f7bca550 653 else
Azure.IoT Build 0:6ae2f7bca550 654 {
Azure.IoT Build 0:6ae2f7bca550 655 result->role = role_sender;
Azure.IoT Build 0:6ae2f7bca550 656 }
Azure.IoT Build 0:6ae2f7bca550 657
AzureIoTClient 12:b30dacf113f2 658 result->pending_deliveries = singlylinkedlist_create();
Azure.IoT Build 0:6ae2f7bca550 659 if (result->pending_deliveries == NULL)
Azure.IoT Build 0:6ae2f7bca550 660 {
Azure.IoT Build 0:6ae2f7bca550 661 amqpalloc_free(result);
Azure.IoT Build 0:6ae2f7bca550 662 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 663 }
Azure.IoT Build 0:6ae2f7bca550 664 else
Azure.IoT Build 0:6ae2f7bca550 665 {
Azure.IoT Build 0:6ae2f7bca550 666 result->name = amqpalloc_malloc(strlen(name) + 1);
Azure.IoT Build 0:6ae2f7bca550 667 if (result->name == NULL)
Azure.IoT Build 0:6ae2f7bca550 668 {
AzureIoTClient 12:b30dacf113f2 669 singlylinkedlist_destroy(result->pending_deliveries);
Azure.IoT Build 0:6ae2f7bca550 670 amqpalloc_free(result);
Azure.IoT Build 0:6ae2f7bca550 671 result = NULL;
Azure.IoT Build 0:6ae2f7bca550 672 }
Azure.IoT Build 0:6ae2f7bca550 673 else
Azure.IoT Build 0:6ae2f7bca550 674 {
Azure.IoT Build 0:6ae2f7bca550 675 (void)strcpy(result->name, name);
Azure.IoT Build 0:6ae2f7bca550 676 result->on_link_state_changed = NULL;
Azure.IoT Build 0:6ae2f7bca550 677 result->callback_context = NULL;
Azure.IoT Build 0:6ae2f7bca550 678 result->link_endpoint = link_endpoint;
Azure.IoT Build 0:6ae2f7bca550 679 }
Azure.IoT Build 0:6ae2f7bca550 680 }
Azure.IoT Build 0:6ae2f7bca550 681 }
Azure.IoT Build 0:6ae2f7bca550 682
Azure.IoT Build 0:6ae2f7bca550 683 return result;
Azure.IoT Build 0:6ae2f7bca550 684 }
Azure.IoT Build 0:6ae2f7bca550 685
Azure.IoT Build 0:6ae2f7bca550 686 void link_destroy(LINK_HANDLE link)
Azure.IoT Build 0:6ae2f7bca550 687 {
Azure.IoT Build 0:6ae2f7bca550 688 if (link != NULL)
Azure.IoT Build 0:6ae2f7bca550 689 {
AzureIoTClient 12:b30dacf113f2 690 link->on_link_state_changed = NULL;
AzureIoTClient 12:b30dacf113f2 691 (void)link_detach(link, true);
AzureIoTClient 12:b30dacf113f2 692 session_destroy_link_endpoint(link->link_endpoint);
Azure.IoT Build 0:6ae2f7bca550 693 amqpvalue_destroy(link->source);
Azure.IoT Build 0:6ae2f7bca550 694 amqpvalue_destroy(link->target);
Azure.IoT Build 0:6ae2f7bca550 695 if (link->pending_deliveries != NULL)
Azure.IoT Build 0:6ae2f7bca550 696 {
AzureIoTClient 12:b30dacf113f2 697 LIST_ITEM_HANDLE item = singlylinkedlist_get_head_item(link->pending_deliveries);
Azure.IoT Build 0:6ae2f7bca550 698 while (item != NULL)
Azure.IoT Build 0:6ae2f7bca550 699 {
AzureIoTClient 12:b30dacf113f2 700 LIST_ITEM_HANDLE next_item = singlylinkedlist_get_next_item(item);
AzureIoTClient 12:b30dacf113f2 701 DELIVERY_INSTANCE* delivery_instance = (DELIVERY_INSTANCE*)singlylinkedlist_item_get_value(item);
Azure.IoT Build 0:6ae2f7bca550 702 if (delivery_instance != NULL)
Azure.IoT Build 0:6ae2f7bca550 703 {
Azure.IoT Build 0:6ae2f7bca550 704 amqpalloc_free(delivery_instance);
Azure.IoT Build 0:6ae2f7bca550 705 }
Azure.IoT Build 0:6ae2f7bca550 706
Azure.IoT Build 0:6ae2f7bca550 707 item = next_item;
Azure.IoT Build 0:6ae2f7bca550 708 }
Azure.IoT Build 0:6ae2f7bca550 709
AzureIoTClient 12:b30dacf113f2 710 singlylinkedlist_destroy(link->pending_deliveries);
Azure.IoT Build 0:6ae2f7bca550 711 }
Azure.IoT Build 0:6ae2f7bca550 712
Azure.IoT Build 0:6ae2f7bca550 713 if (link->name != NULL)
Azure.IoT Build 0:6ae2f7bca550 714 {
Azure.IoT Build 0:6ae2f7bca550 715 amqpalloc_free(link->name);
Azure.IoT Build 0:6ae2f7bca550 716 }
Azure.IoT Build 0:6ae2f7bca550 717
AzureIoTClient 3:96522ba2ddf8 718 if (link->attach_properties != NULL)
Azure.IoT Build 0:6ae2f7bca550 719 {
AzureIoTClient 3:96522ba2ddf8 720 amqpvalue_destroy(link->attach_properties);
Azure.IoT Build 0:6ae2f7bca550 721 }
Azure.IoT Build 0:6ae2f7bca550 722
AzureIoTClient 12:b30dacf113f2 723 if (link->received_payload != NULL)
AzureIoTClient 12:b30dacf113f2 724 {
AzureIoTClient 12:b30dacf113f2 725 free(link->received_payload);
AzureIoTClient 12:b30dacf113f2 726 }
AzureIoTClient 12:b30dacf113f2 727
Azure.IoT Build 0:6ae2f7bca550 728 amqpalloc_free(link);
Azure.IoT Build 0:6ae2f7bca550 729 }
Azure.IoT Build 0:6ae2f7bca550 730 }
Azure.IoT Build 0:6ae2f7bca550 731
Azure.IoT Build 0:6ae2f7bca550 732 int link_set_snd_settle_mode(LINK_HANDLE link, sender_settle_mode snd_settle_mode)
Azure.IoT Build 0:6ae2f7bca550 733 {
Azure.IoT Build 0:6ae2f7bca550 734 int result;
Azure.IoT Build 0:6ae2f7bca550 735
Azure.IoT Build 0:6ae2f7bca550 736 if (link == NULL)
Azure.IoT Build 0:6ae2f7bca550 737 {
Azure.IoT Build 0:6ae2f7bca550 738 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 739 }
Azure.IoT Build 0:6ae2f7bca550 740 else
Azure.IoT Build 0:6ae2f7bca550 741 {
Azure.IoT Build 0:6ae2f7bca550 742 link->snd_settle_mode = snd_settle_mode;
Azure.IoT Build 0:6ae2f7bca550 743 result = 0;
Azure.IoT Build 0:6ae2f7bca550 744 }
Azure.IoT Build 0:6ae2f7bca550 745
Azure.IoT Build 0:6ae2f7bca550 746 return result;
Azure.IoT Build 0:6ae2f7bca550 747 }
Azure.IoT Build 0:6ae2f7bca550 748
Azure.IoT Build 0:6ae2f7bca550 749 int link_get_snd_settle_mode(LINK_HANDLE link, sender_settle_mode* snd_settle_mode)
Azure.IoT Build 0:6ae2f7bca550 750 {
Azure.IoT Build 0:6ae2f7bca550 751 int result;
Azure.IoT Build 0:6ae2f7bca550 752
Azure.IoT Build 0:6ae2f7bca550 753 if ((link == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 754 (snd_settle_mode == NULL))
Azure.IoT Build 0:6ae2f7bca550 755 {
Azure.IoT Build 0:6ae2f7bca550 756 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 757 }
Azure.IoT Build 0:6ae2f7bca550 758 else
Azure.IoT Build 0:6ae2f7bca550 759 {
Azure.IoT Build 0:6ae2f7bca550 760 *snd_settle_mode = link->snd_settle_mode;
Azure.IoT Build 0:6ae2f7bca550 761
Azure.IoT Build 0:6ae2f7bca550 762 result = 0;
Azure.IoT Build 0:6ae2f7bca550 763 }
Azure.IoT Build 0:6ae2f7bca550 764
Azure.IoT Build 0:6ae2f7bca550 765 return result;
Azure.IoT Build 0:6ae2f7bca550 766 }
Azure.IoT Build 0:6ae2f7bca550 767
Azure.IoT Build 0:6ae2f7bca550 768 int link_set_rcv_settle_mode(LINK_HANDLE link, receiver_settle_mode rcv_settle_mode)
Azure.IoT Build 0:6ae2f7bca550 769 {
Azure.IoT Build 0:6ae2f7bca550 770 int result;
Azure.IoT Build 0:6ae2f7bca550 771
Azure.IoT Build 0:6ae2f7bca550 772 if (link == NULL)
Azure.IoT Build 0:6ae2f7bca550 773 {
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 link->rcv_settle_mode = rcv_settle_mode;
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 return result;
Azure.IoT Build 0:6ae2f7bca550 783 }
Azure.IoT Build 0:6ae2f7bca550 784
Azure.IoT Build 0:6ae2f7bca550 785 int link_get_rcv_settle_mode(LINK_HANDLE link, receiver_settle_mode* rcv_settle_mode)
Azure.IoT Build 0:6ae2f7bca550 786 {
Azure.IoT Build 0:6ae2f7bca550 787 int result;
Azure.IoT Build 0:6ae2f7bca550 788
Azure.IoT Build 0:6ae2f7bca550 789 if ((link == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 790 (rcv_settle_mode == NULL))
Azure.IoT Build 0:6ae2f7bca550 791 {
Azure.IoT Build 0:6ae2f7bca550 792 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 793 }
Azure.IoT Build 0:6ae2f7bca550 794 else
Azure.IoT Build 0:6ae2f7bca550 795 {
Azure.IoT Build 0:6ae2f7bca550 796 *rcv_settle_mode = link->rcv_settle_mode;
Azure.IoT Build 0:6ae2f7bca550 797 result = 0;
Azure.IoT Build 0:6ae2f7bca550 798 }
Azure.IoT Build 0:6ae2f7bca550 799
Azure.IoT Build 0:6ae2f7bca550 800 return result;
Azure.IoT Build 0:6ae2f7bca550 801 }
Azure.IoT Build 0:6ae2f7bca550 802
Azure.IoT Build 0:6ae2f7bca550 803 int link_set_initial_delivery_count(LINK_HANDLE link, sequence_no initial_delivery_count)
Azure.IoT Build 0:6ae2f7bca550 804 {
Azure.IoT Build 0:6ae2f7bca550 805 int result;
Azure.IoT Build 0:6ae2f7bca550 806
Azure.IoT Build 0:6ae2f7bca550 807 if (link == NULL)
Azure.IoT Build 0:6ae2f7bca550 808 {
Azure.IoT Build 0:6ae2f7bca550 809 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 810 }
Azure.IoT Build 0:6ae2f7bca550 811 else
Azure.IoT Build 0:6ae2f7bca550 812 {
Azure.IoT Build 0:6ae2f7bca550 813 link->initial_delivery_count = initial_delivery_count;
Azure.IoT Build 0:6ae2f7bca550 814 result = 0;
Azure.IoT Build 0:6ae2f7bca550 815 }
Azure.IoT Build 0:6ae2f7bca550 816
Azure.IoT Build 0:6ae2f7bca550 817 return result;
Azure.IoT Build 0:6ae2f7bca550 818 }
Azure.IoT Build 0:6ae2f7bca550 819
Azure.IoT Build 0:6ae2f7bca550 820 int link_get_initial_delivery_count(LINK_HANDLE link, sequence_no* initial_delivery_count)
Azure.IoT Build 0:6ae2f7bca550 821 {
Azure.IoT Build 0:6ae2f7bca550 822 int result;
Azure.IoT Build 0:6ae2f7bca550 823
Azure.IoT Build 0:6ae2f7bca550 824 if ((link == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 825 (initial_delivery_count == NULL))
Azure.IoT Build 0:6ae2f7bca550 826 {
Azure.IoT Build 0:6ae2f7bca550 827 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 828 }
Azure.IoT Build 0:6ae2f7bca550 829 else
Azure.IoT Build 0:6ae2f7bca550 830 {
Azure.IoT Build 0:6ae2f7bca550 831 *initial_delivery_count = link->initial_delivery_count;
Azure.IoT Build 0:6ae2f7bca550 832 result = 0;
Azure.IoT Build 0:6ae2f7bca550 833 }
Azure.IoT Build 0:6ae2f7bca550 834
Azure.IoT Build 0:6ae2f7bca550 835 return result;
Azure.IoT Build 0:6ae2f7bca550 836 }
Azure.IoT Build 0:6ae2f7bca550 837
Azure.IoT Build 0:6ae2f7bca550 838 int link_set_max_message_size(LINK_HANDLE link, uint64_t max_message_size)
Azure.IoT Build 0:6ae2f7bca550 839 {
Azure.IoT Build 0:6ae2f7bca550 840 int result;
Azure.IoT Build 0:6ae2f7bca550 841
Azure.IoT Build 0:6ae2f7bca550 842 if (link == NULL)
Azure.IoT Build 0:6ae2f7bca550 843 {
Azure.IoT Build 0:6ae2f7bca550 844 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 845 }
Azure.IoT Build 0:6ae2f7bca550 846 else
Azure.IoT Build 0:6ae2f7bca550 847 {
Azure.IoT Build 0:6ae2f7bca550 848 link->max_message_size = max_message_size;
Azure.IoT Build 0:6ae2f7bca550 849 result = 0;
Azure.IoT Build 0:6ae2f7bca550 850 }
Azure.IoT Build 0:6ae2f7bca550 851
Azure.IoT Build 0:6ae2f7bca550 852 return result;
Azure.IoT Build 0:6ae2f7bca550 853 }
Azure.IoT Build 0:6ae2f7bca550 854
Azure.IoT Build 0:6ae2f7bca550 855 int link_get_max_message_size(LINK_HANDLE link, uint64_t* max_message_size)
Azure.IoT Build 0:6ae2f7bca550 856 {
Azure.IoT Build 0:6ae2f7bca550 857 int result;
Azure.IoT Build 0:6ae2f7bca550 858
Azure.IoT Build 0:6ae2f7bca550 859 if ((link == NULL) ||
Azure.IoT Build 0:6ae2f7bca550 860 (max_message_size == NULL))
Azure.IoT Build 0:6ae2f7bca550 861 {
Azure.IoT Build 0:6ae2f7bca550 862 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 863 }
Azure.IoT Build 0:6ae2f7bca550 864 else
Azure.IoT Build 0:6ae2f7bca550 865 {
Azure.IoT Build 0:6ae2f7bca550 866 *max_message_size = link->max_message_size;
Azure.IoT Build 0:6ae2f7bca550 867 result = 0;
Azure.IoT Build 0:6ae2f7bca550 868 }
Azure.IoT Build 0:6ae2f7bca550 869
Azure.IoT Build 0:6ae2f7bca550 870 return result;
Azure.IoT Build 0:6ae2f7bca550 871 }
Azure.IoT Build 0:6ae2f7bca550 872
Azure.IoT Build 0:6ae2f7bca550 873 int link_set_attach_properties(LINK_HANDLE link, fields attach_properties)
Azure.IoT Build 0:6ae2f7bca550 874 {
Azure.IoT Build 0:6ae2f7bca550 875 int result;
Azure.IoT Build 0:6ae2f7bca550 876
Azure.IoT Build 0:6ae2f7bca550 877 if (link == NULL)
Azure.IoT Build 0:6ae2f7bca550 878 {
Azure.IoT Build 0:6ae2f7bca550 879 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 880 }
Azure.IoT Build 0:6ae2f7bca550 881 else
Azure.IoT Build 0:6ae2f7bca550 882 {
Azure.IoT Build 0:6ae2f7bca550 883 link->attach_properties = amqpvalue_clone(attach_properties);
Azure.IoT Build 0:6ae2f7bca550 884 if (link->attach_properties == NULL)
Azure.IoT Build 0:6ae2f7bca550 885 {
Azure.IoT Build 0:6ae2f7bca550 886 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 887 }
Azure.IoT Build 0:6ae2f7bca550 888 else
Azure.IoT Build 0:6ae2f7bca550 889 {
Azure.IoT Build 0:6ae2f7bca550 890 result = 0;
Azure.IoT Build 0:6ae2f7bca550 891 }
Azure.IoT Build 0:6ae2f7bca550 892 }
Azure.IoT Build 0:6ae2f7bca550 893
Azure.IoT Build 0:6ae2f7bca550 894 return result;
Azure.IoT Build 0:6ae2f7bca550 895 }
Azure.IoT Build 0:6ae2f7bca550 896
Azure.IoT Build 0:6ae2f7bca550 897 int link_attach(LINK_HANDLE link, ON_TRANSFER_RECEIVED on_transfer_received, ON_LINK_STATE_CHANGED on_link_state_changed, ON_LINK_FLOW_ON on_link_flow_on, void* callback_context)
Azure.IoT Build 0:6ae2f7bca550 898 {
Azure.IoT Build 0:6ae2f7bca550 899 int result;
Azure.IoT Build 0:6ae2f7bca550 900
AzureIoTClient 12:b30dacf113f2 901 if ((link == NULL) ||
AzureIoTClient 12:b30dacf113f2 902 (link->is_closed))
Azure.IoT Build 0:6ae2f7bca550 903 {
Azure.IoT Build 0:6ae2f7bca550 904 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 905 }
Azure.IoT Build 0:6ae2f7bca550 906 else
Azure.IoT Build 0:6ae2f7bca550 907 {
Azure.IoT Build 0:6ae2f7bca550 908 if (!link->is_underlying_session_begun)
Azure.IoT Build 0:6ae2f7bca550 909 {
Azure.IoT Build 0:6ae2f7bca550 910 link->on_link_state_changed = on_link_state_changed;
Azure.IoT Build 0:6ae2f7bca550 911 link->on_transfer_received = on_transfer_received;
Azure.IoT Build 0:6ae2f7bca550 912 link->on_link_flow_on = on_link_flow_on;
Azure.IoT Build 0:6ae2f7bca550 913 link->callback_context = callback_context;
Azure.IoT Build 0:6ae2f7bca550 914
Azure.IoT Build 0:6ae2f7bca550 915 if (session_begin(link->session) != 0)
Azure.IoT Build 0:6ae2f7bca550 916 {
Azure.IoT Build 0:6ae2f7bca550 917 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 918 }
Azure.IoT Build 0:6ae2f7bca550 919 else
Azure.IoT Build 0:6ae2f7bca550 920 {
AzureIoTClient 12:b30dacf113f2 921 link->is_underlying_session_begun = true;
Azure.IoT Build 0:6ae2f7bca550 922
Azure.IoT Build 0:6ae2f7bca550 923 if (session_start_link_endpoint(link->link_endpoint, link_frame_received, on_session_state_changed, on_session_flow_on, link) != 0)
Azure.IoT Build 0:6ae2f7bca550 924 {
Azure.IoT Build 0:6ae2f7bca550 925 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 926 }
Azure.IoT Build 0:6ae2f7bca550 927 else
Azure.IoT Build 0:6ae2f7bca550 928 {
AzureIoTClient 12:b30dacf113f2 929 link->received_payload_size = 0;
AzureIoTClient 12:b30dacf113f2 930
Azure.IoT Build 0:6ae2f7bca550 931 result = 0;
Azure.IoT Build 0:6ae2f7bca550 932 }
Azure.IoT Build 0:6ae2f7bca550 933 }
Azure.IoT Build 0:6ae2f7bca550 934 }
Azure.IoT Build 0:6ae2f7bca550 935 else
Azure.IoT Build 0:6ae2f7bca550 936 {
Azure.IoT Build 0:6ae2f7bca550 937 result = 0;
Azure.IoT Build 0:6ae2f7bca550 938 }
Azure.IoT Build 0:6ae2f7bca550 939 }
Azure.IoT Build 0:6ae2f7bca550 940
Azure.IoT Build 0:6ae2f7bca550 941 return result;
Azure.IoT Build 0:6ae2f7bca550 942 }
Azure.IoT Build 0:6ae2f7bca550 943
AzureIoTClient 12:b30dacf113f2 944 int link_detach(LINK_HANDLE link, bool close)
Azure.IoT Build 0:6ae2f7bca550 945 {
Azure.IoT Build 0:6ae2f7bca550 946 int result;
Azure.IoT Build 0:6ae2f7bca550 947
AzureIoTClient 12:b30dacf113f2 948 if ((link == NULL) ||
AzureIoTClient 12:b30dacf113f2 949 (link->is_closed))
AzureIoTClient 12:b30dacf113f2 950 {
Azure.IoT Build 0:6ae2f7bca550 951 result = __LINE__;
Azure.IoT Build 0:6ae2f7bca550 952 }
Azure.IoT Build 0:6ae2f7bca550 953 else
Azure.IoT Build 0:6ae2f7bca550 954 {
AzureIoTClient 12:b30dacf113f2 955 switch (link->link_state)
AzureIoTClient 12:b30dacf113f2 956 {
AzureIoTClient 12:b30dacf113f2 957
AzureIoTClient 12:b30dacf113f2 958 case LINK_STATE_HALF_ATTACHED:
AzureIoTClient 12:b30dacf113f2 959 /* Sending detach when remote is not yet attached */
AzureIoTClient 12:b30dacf113f2 960 if (send_detach(link, close, NULL) != 0)
AzureIoTClient 12:b30dacf113f2 961 {
AzureIoTClient 12:b30dacf113f2 962 result = __LINE__;
AzureIoTClient 12:b30dacf113f2 963 }
AzureIoTClient 12:b30dacf113f2 964 else
AzureIoTClient 12:b30dacf113f2 965 {
AzureIoTClient 12:b30dacf113f2 966 set_link_state(link, LINK_STATE_DETACHED);
AzureIoTClient 12:b30dacf113f2 967 result = 0;
AzureIoTClient 12:b30dacf113f2 968 }
AzureIoTClient 12:b30dacf113f2 969 break;
AzureIoTClient 12:b30dacf113f2 970
AzureIoTClient 12:b30dacf113f2 971 case LINK_STATE_ATTACHED:
AzureIoTClient 12:b30dacf113f2 972 /* Send detach and wait for remote to respond */
AzureIoTClient 12:b30dacf113f2 973 if (send_detach(link, close, NULL) != 0)
AzureIoTClient 12:b30dacf113f2 974 {
AzureIoTClient 12:b30dacf113f2 975 result = __LINE__;
AzureIoTClient 12:b30dacf113f2 976 }
AzureIoTClient 12:b30dacf113f2 977 else
AzureIoTClient 12:b30dacf113f2 978 {
AzureIoTClient 12:b30dacf113f2 979 set_link_state(link, LINK_STATE_HALF_ATTACHED);
AzureIoTClient 12:b30dacf113f2 980 result = 0;
AzureIoTClient 12:b30dacf113f2 981 }
AzureIoTClient 12:b30dacf113f2 982 break;
AzureIoTClient 12:b30dacf113f2 983
AzureIoTClient 12:b30dacf113f2 984 case LINK_STATE_DETACHED:
AzureIoTClient 12:b30dacf113f2 985 /* Already detached */
AzureIoTClient 12:b30dacf113f2 986 result = 0;
AzureIoTClient 12:b30dacf113f2 987 break;
AzureIoTClient 12:b30dacf113f2 988
AzureIoTClient 12:b30dacf113f2 989 default:
AzureIoTClient 12:b30dacf113f2 990 case LINK_STATE_ERROR:
AzureIoTClient 12:b30dacf113f2 991 /* Already detached and in error state */
AzureIoTClient 12:b30dacf113f2 992 result = __LINE__;
AzureIoTClient 12:b30dacf113f2 993 break;
AzureIoTClient 12:b30dacf113f2 994 }
Azure.IoT Build 0:6ae2f7bca550 995 }
Azure.IoT Build 0:6ae2f7bca550 996
Azure.IoT Build 0:6ae2f7bca550 997 return result;
Azure.IoT Build 0:6ae2f7bca550 998 }
Azure.IoT Build 0:6ae2f7bca550 999
Azure.IoT Build 0:6ae2f7bca550 1000 LINK_TRANSFER_RESULT link_transfer(LINK_HANDLE link, message_format message_format, PAYLOAD* payloads, size_t payload_count, ON_DELIVERY_SETTLED on_delivery_settled, void* callback_context)
Azure.IoT Build 0:6ae2f7bca550 1001 {
Azure.IoT Build 0:6ae2f7bca550 1002 LINK_TRANSFER_RESULT result;
Azure.IoT Build 0:6ae2f7bca550 1003
Azure.IoT Build 0:6ae2f7bca550 1004 if (link == NULL)
Azure.IoT Build 0:6ae2f7bca550 1005 {
Azure.IoT Build 0:6ae2f7bca550 1006 result = LINK_TRANSFER_ERROR;
Azure.IoT Build 0:6ae2f7bca550 1007 }
Azure.IoT Build 0:6ae2f7bca550 1008 else
Azure.IoT Build 0:6ae2f7bca550 1009 {
AzureIoTClient 2:64b4feb67cd3 1010 if ((link->role != role_sender) ||
AzureIoTClient 7:9e9ab3b0efef 1011 (link->link_state != LINK_STATE_ATTACHED))
Azure.IoT Build 0:6ae2f7bca550 1012 {
Azure.IoT Build 0:6ae2f7bca550 1013 result = LINK_TRANSFER_ERROR;
Azure.IoT Build 0:6ae2f7bca550 1014 }
Azure.IoT Build 0:6ae2f7bca550 1015 else if (link->link_credit == 0)
Azure.IoT Build 0:6ae2f7bca550 1016 {
Azure.IoT Build 0:6ae2f7bca550 1017 result = LINK_TRANSFER_BUSY;
Azure.IoT Build 0:6ae2f7bca550 1018 }
Azure.IoT Build 0:6ae2f7bca550 1019 else
Azure.IoT Build 0:6ae2f7bca550 1020 {
Azure.IoT Build 0:6ae2f7bca550 1021 TRANSFER_HANDLE transfer = transfer_create(0);
Azure.IoT Build 0:6ae2f7bca550 1022 if (transfer == NULL)
Azure.IoT Build 0:6ae2f7bca550 1023 {
Azure.IoT Build 0:6ae2f7bca550 1024 result = LINK_TRANSFER_ERROR;
Azure.IoT Build 0:6ae2f7bca550 1025 }
Azure.IoT Build 0:6ae2f7bca550 1026 else
Azure.IoT Build 0:6ae2f7bca550 1027 {
AzureIoTClient 7:9e9ab3b0efef 1028 sequence_no delivery_count = link->delivery_count + 1;
AzureIoTClient 7:9e9ab3b0efef 1029 unsigned char delivery_tag_bytes[sizeof(delivery_count)];
Azure.IoT Build 0:6ae2f7bca550 1030 delivery_tag delivery_tag;
Azure.IoT Build 0:6ae2f7bca550 1031 bool settled;
Azure.IoT Build 0:6ae2f7bca550 1032
AzureIoTClient 7:9e9ab3b0efef 1033 (void)memcpy(delivery_tag_bytes, &delivery_count, sizeof(delivery_count));
Azure.IoT Build 0:6ae2f7bca550 1034
Azure.IoT Build 0:6ae2f7bca550 1035 delivery_tag.bytes = &delivery_tag_bytes;
Azure.IoT Build 0:6ae2f7bca550 1036 delivery_tag.length = sizeof(delivery_tag_bytes);
Azure.IoT Build 0:6ae2f7bca550 1037
Azure.IoT Build 0:6ae2f7bca550 1038 if (link->snd_settle_mode == sender_settle_mode_unsettled)
Azure.IoT Build 0:6ae2f7bca550 1039 {
Azure.IoT Build 0:6ae2f7bca550 1040 settled = false;
Azure.IoT Build 0:6ae2f7bca550 1041 }
Azure.IoT Build 0:6ae2f7bca550 1042 else
Azure.IoT Build 0:6ae2f7bca550 1043 {
Azure.IoT Build 0:6ae2f7bca550 1044 settled = true;
Azure.IoT Build 0:6ae2f7bca550 1045 }
Azure.IoT Build 0:6ae2f7bca550 1046
Azure.IoT Build 0:6ae2f7bca550 1047 if ((transfer_set_delivery_tag(transfer, delivery_tag) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 1048 (transfer_set_message_format(transfer, message_format) != 0) ||
Azure.IoT Build 0:6ae2f7bca550 1049 (transfer_set_settled(transfer, settled) != 0))
Azure.IoT Build 0:6ae2f7bca550 1050 {
Azure.IoT Build 0:6ae2f7bca550 1051 result = LINK_TRANSFER_ERROR;
Azure.IoT Build 0:6ae2f7bca550 1052 }
Azure.IoT Build 0:6ae2f7bca550 1053 else
Azure.IoT Build 0:6ae2f7bca550 1054 {
Azure.IoT Build 0:6ae2f7bca550 1055 AMQP_VALUE transfer_value = amqpvalue_create_transfer(transfer);
Azure.IoT Build 0:6ae2f7bca550 1056
Azure.IoT Build 0:6ae2f7bca550 1057 if (transfer_value == NULL)
Azure.IoT Build 0:6ae2f7bca550 1058 {
Azure.IoT Build 0:6ae2f7bca550 1059 result = LINK_TRANSFER_ERROR;
Azure.IoT Build 0:6ae2f7bca550 1060 }
Azure.IoT Build 0:6ae2f7bca550 1061 else
Azure.IoT Build 0:6ae2f7bca550 1062 {
Azure.IoT Build 0:6ae2f7bca550 1063 DELIVERY_INSTANCE* pending_delivery = amqpalloc_malloc(sizeof(DELIVERY_INSTANCE));
Azure.IoT Build 0:6ae2f7bca550 1064 if (pending_delivery == NULL)
Azure.IoT Build 0:6ae2f7bca550 1065 {
Azure.IoT Build 0:6ae2f7bca550 1066 result = LINK_TRANSFER_ERROR;
Azure.IoT Build 0:6ae2f7bca550 1067 }
Azure.IoT Build 0:6ae2f7bca550 1068 else
Azure.IoT Build 0:6ae2f7bca550 1069 {
Azure.IoT Build 0:6ae2f7bca550 1070 LIST_ITEM_HANDLE delivery_instance_list_item;
Azure.IoT Build 0:6ae2f7bca550 1071 pending_delivery->on_delivery_settled = on_delivery_settled;
Azure.IoT Build 0:6ae2f7bca550 1072 pending_delivery->callback_context = callback_context;
Azure.IoT Build 0:6ae2f7bca550 1073 pending_delivery->link = link;
AzureIoTClient 12:b30dacf113f2 1074 delivery_instance_list_item = singlylinkedlist_add(link->pending_deliveries, pending_delivery);
Azure.IoT Build 0:6ae2f7bca550 1075
Azure.IoT Build 0:6ae2f7bca550 1076 if (delivery_instance_list_item == NULL)
Azure.IoT Build 0:6ae2f7bca550 1077 {
Azure.IoT Build 0:6ae2f7bca550 1078 amqpalloc_free(pending_delivery);
Azure.IoT Build 0:6ae2f7bca550 1079 result = LINK_TRANSFER_ERROR;
Azure.IoT Build 0:6ae2f7bca550 1080 }
Azure.IoT Build 0:6ae2f7bca550 1081 else
Azure.IoT Build 0:6ae2f7bca550 1082 {
Azure.IoT Build 0:6ae2f7bca550 1083 /* here we should feed data to the transfer frame */
Azure.IoT Build 0:6ae2f7bca550 1084 switch (session_send_transfer(link->link_endpoint, transfer, payloads, payload_count, &pending_delivery->delivery_id, (settled) ? on_send_complete : NULL, delivery_instance_list_item))
Azure.IoT Build 0:6ae2f7bca550 1085 {
Azure.IoT Build 0:6ae2f7bca550 1086 default:
Azure.IoT Build 0:6ae2f7bca550 1087 case SESSION_SEND_TRANSFER_ERROR:
AzureIoTClient 12:b30dacf113f2 1088 singlylinkedlist_remove(link->pending_deliveries, delivery_instance_list_item);
AzureIoTClient 3:96522ba2ddf8 1089 amqpalloc_free(pending_delivery);
Azure.IoT Build 0:6ae2f7bca550 1090 result = LINK_TRANSFER_ERROR;
Azure.IoT Build 0:6ae2f7bca550 1091 break;
Azure.IoT Build 0:6ae2f7bca550 1092
Azure.IoT Build 0:6ae2f7bca550 1093 case SESSION_SEND_TRANSFER_BUSY:
AzureIoTClient 3:96522ba2ddf8 1094 /* Ensure we remove from list again since sender will attempt to transfer again on flow on */
AzureIoTClient 12:b30dacf113f2 1095 singlylinkedlist_remove(link->pending_deliveries, delivery_instance_list_item);
AzureIoTClient 3:96522ba2ddf8 1096 amqpalloc_free(pending_delivery);
Azure.IoT Build 0:6ae2f7bca550 1097 result = LINK_TRANSFER_BUSY;
Azure.IoT Build 0:6ae2f7bca550 1098 break;
Azure.IoT Build 0:6ae2f7bca550 1099
Azure.IoT Build 0:6ae2f7bca550 1100 case SESSION_SEND_TRANSFER_OK:
AzureIoTClient 7:9e9ab3b0efef 1101 link->delivery_count = delivery_count;
Azure.IoT Build 0:6ae2f7bca550 1102 link->link_credit--;
Azure.IoT Build 0:6ae2f7bca550 1103 result = LINK_TRANSFER_OK;
Azure.IoT Build 0:6ae2f7bca550 1104 break;
Azure.IoT Build 0:6ae2f7bca550 1105 }
Azure.IoT Build 0:6ae2f7bca550 1106 }
Azure.IoT Build 0:6ae2f7bca550 1107 }
Azure.IoT Build 0:6ae2f7bca550 1108
Azure.IoT Build 0:6ae2f7bca550 1109 amqpvalue_destroy(transfer_value);
Azure.IoT Build 0:6ae2f7bca550 1110 }
Azure.IoT Build 0:6ae2f7bca550 1111 }
Azure.IoT Build 0:6ae2f7bca550 1112
Azure.IoT Build 0:6ae2f7bca550 1113 transfer_destroy(transfer);
Azure.IoT Build 0:6ae2f7bca550 1114 }
Azure.IoT Build 0:6ae2f7bca550 1115 }
Azure.IoT Build 0:6ae2f7bca550 1116 }
Azure.IoT Build 0:6ae2f7bca550 1117
Azure.IoT Build 0:6ae2f7bca550 1118 return result;
Azure.IoT Build 0:6ae2f7bca550 1119 }