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1/*
2 * This file is part of the sigrok project.
3 *
c73d2ea4 4 * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
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5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include <stdio.h>
21#include <stdlib.h>
22#include <unistd.h>
23#include <string.h>
544a4582 24#include <glib.h>
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25#include "libsigrok.h"
26#include "libsigrok-internal.h"
aa4b1107 27
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28/**
29 * @file
30 *
31 * Creating, using, or destroying libsigrok sessions.
32 */
33
7b870c38
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34/**
35 * @defgroup grp_session Session handling
36 *
37 * Creating, using, or destroying libsigrok sessions.
38 *
39 * @{
40 */
41
544a4582 42struct source {
544a4582 43 int timeout;
d08490aa 44 sr_receive_data_callback_t cb;
1f9813eb 45 void *cb_data;
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46
47 /* This is used to keep track of the object (fd, pollfd or channel) which is
48 * being polled and will be used to match the source when removing it again.
49 */
50 gintptr poll_object;
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51};
52
7d658874 53/* There can only be one session at a time. */
a0ecd83b 54/* 'session' is not static, it's used elsewhere (via 'extern'). */
2872d21e 55struct sr_session *session;
544a4582 56
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57/**
58 * Create a new session.
59 *
6b2d8d3e 60 * @todo Should it use the file-global "session" variable or take an argument?
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61 * The same question applies to all the other session functions.
62 *
63 * @return A pointer to the newly allocated session, or NULL upon errors.
64 */
1a081ca6 65SR_API struct sr_session *sr_session_new(void)
a1bb33af 66{
133a37bf 67 if (!(session = g_try_malloc0(sizeof(struct sr_session)))) {
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68 sr_err("session: %s: session malloc failed", __func__);
69 return NULL; /* TODO: SR_ERR_MALLOC? */
70 }
a1bb33af 71
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72 session->source_timeout = -1;
73
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74 return session;
75}
76
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77/**
78 * Destroy the current session.
79 *
80 * This frees up all memory used by the session.
81 *
e0508e67 82 * @return SR_OK upon success, SR_ERR_BUG if no session exists.
9f45fb3a 83 */
1a081ca6 84SR_API int sr_session_destroy(void)
a1bb33af 85{
9f45fb3a 86 if (!session) {
133a37bf 87 sr_err("session: %s: session was NULL", __func__);
e0508e67 88 return SR_ERR_BUG;
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89 }
90
ed229aaa 91 sr_session_dev_remove_all();
a1bb33af 92
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93 /* TODO: Error checks needed? */
94
a1bb33af 95 g_free(session);
9f45fb3a 96 session = NULL;
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97
98 return SR_OK;
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99}
100
de4d3f99 101static void sr_dev_close(struct sr_dev_inst *sdi)
ed229aaa 102{
e8d3d6c8 103 if (sdi->driver && sdi->driver->dev_close)
de4d3f99 104 sdi->driver->dev_close(sdi);
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105}
106
9f45fb3a 107/**
6b2d8d3e 108 * Remove all the devices from the current session.
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109 *
110 * The session itself (i.e., the struct sr_session) is not free'd and still
111 * exists after this function returns.
112 *
e0508e67 113 * @return SR_OK upon success, SR_ERR_BUG if no session exists.
9f45fb3a 114 */
01c3e9db 115SR_API int sr_session_dev_remove_all(void)
a1bb33af 116{
9f45fb3a 117 if (!session) {
133a37bf 118 sr_err("session: %s: session was NULL", __func__);
e0508e67 119 return SR_ERR_BUG;
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120 }
121
ed229aaa 122 g_slist_free_full(session->devs, (GDestroyNotify)sr_dev_close);
bb7ef793 123 session->devs = NULL;
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124
125 return SR_OK;
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126}
127
9f45fb3a 128/**
9c5332d2 129 * Add a device instance to the current session.
9f45fb3a 130 *
9c5332d2 131 * @param sdi The device instance to add to the current session. Must not
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132 * be NULL. Also, sdi->driver and sdi->driver->dev_open must
133 * not be NULL.
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134 *
135 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments.
136 */
de4d3f99 137SR_API int sr_session_dev_add(const struct sr_dev_inst *sdi)
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138{
139 int ret;
140
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141 if (!sdi) {
142 sr_err("session: %s: sdi was NULL", __func__);
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143 return SR_ERR_ARG;
144 }
145
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146 if (!session) {
147 sr_err("session: %s: session was NULL", __func__);
148 return SR_ERR_BUG;
149 }
150
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151 /* If sdi->driver is NULL, this is a virtual device. */
152 if (!sdi->driver) {
153 sr_dbg("session: %s: sdi->driver was NULL, this seems to be "
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154 "a virtual device; continuing", __func__);
155 /* Just add the device, don't run dev_open(). */
de4d3f99 156 session->devs = g_slist_append(session->devs, (gpointer)sdi);
d6eb0c33 157 return SR_OK;
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158 }
159
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160 /* sdi->driver is non-NULL (i.e. we have a real device). */
161 if (!sdi->driver->dev_open) {
162 sr_err("session: %s: sdi->driver->dev_open was NULL", __func__);
8ec95d22 163 return SR_ERR_BUG;
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164 }
165
de4d3f99 166 if ((ret = sdi->driver->dev_open((struct sr_dev_inst *)sdi)) != SR_OK) {
e7eb703f 167 sr_err("session: %s: dev_open failed (%d)", __func__, ret);
9f45fb3a 168 return ret;
aa4b1107 169 }
a1bb33af 170
de4d3f99 171 session->devs = g_slist_append(session->devs, (gpointer)sdi);
aa4b1107 172
e46b8fb1 173 return SR_OK;
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174}
175
9f45fb3a 176/**
01c3e9db 177 * Remove all datafeed callbacks in the current session.
9f45fb3a 178 *
e0508e67 179 * @return SR_OK upon success, SR_ERR_BUG if no session exists.
9f45fb3a 180 */
01c3e9db 181SR_API int sr_session_datafeed_callback_remove_all(void)
a1bb33af 182{
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183 if (!session) {
184 sr_err("session: %s: session was NULL", __func__);
e0508e67 185 return SR_ERR_BUG;
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186 }
187
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188 g_slist_free(session->datafeed_callbacks);
189 session->datafeed_callbacks = NULL;
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190
191 return SR_OK;
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192}
193
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194/**
195 * Add a datafeed callback to the current session.
196 *
d08490aa 197 * @param cb Function to call when a chunk of data is received.
0abee507 198 * Must not be NULL.
a1645fcd 199 *
e0508e67 200 * @return SR_OK upon success, SR_ERR_BUG if no session exists.
9f45fb3a 201 */
d08490aa 202SR_API int sr_session_datafeed_callback_add(sr_datafeed_callback_t cb)
a1bb33af 203{
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204 if (!session) {
205 sr_err("session: %s: session was NULL", __func__);
e0508e67 206 return SR_ERR_BUG;
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207 }
208
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209 if (!cb) {
210 sr_err("session: %s: cb was NULL", __func__);
211 return SR_ERR_ARG;
212 }
9f45fb3a 213
62c82025 214 session->datafeed_callbacks =
d08490aa 215 g_slist_append(session->datafeed_callbacks, cb);
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216
217 return SR_OK;
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218}
219
e0508e67 220static int sr_session_run_poll(void)
544a4582 221{
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222 unsigned int i;
223 int ret;
544a4582 224
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225 while (session->num_sources > 0) {
226 ret = g_poll(session->pollfds, session->num_sources,
227 session->source_timeout);
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228 for (i = 0; i < session->num_sources; i++) {
229 if (session->pollfds[i].revents > 0 || (ret == 0
230 && session->source_timeout == session->sources[i].timeout)) {
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231 /*
232 * Invoke the source's callback on an event,
2cbeb2b7 233 * or if the poll timed out and this source
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234 * asked for that timeout.
235 */
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236 if (!session->sources[i].cb(session->pollfds[i].fd,
237 session->pollfds[i].revents,
238 session->sources[i].cb_data))
b7e94111 239 sr_session_source_remove(session->sources[i].poll_object);
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240 }
241 }
242 }
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243
244 return SR_OK;
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245}
246
9f45fb3a
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247/**
248 * Start a session.
249 *
a1645fcd 250 * There can only be one session at a time.
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251 *
252 * @return SR_OK upon success, SR_ERR upon errors.
253 */
1a081ca6 254SR_API int sr_session_start(void)
7d658874 255{
de4d3f99 256 struct sr_dev_inst *sdi;
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257 GSList *l;
258 int ret;
259
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260 if (!session) {
261 sr_err("session: %s: session was NULL; a session must be "
de4d3f99 262 "created before starting it.", __func__);
0abee507 263 return SR_ERR_BUG;
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264 }
265
bb7ef793 266 if (!session->devs) {
bb7ef793 267 sr_err("session: %s: session->devs was NULL; a session "
9f45fb3a 268 "cannot be started without devices.", __func__);
0abee507 269 return SR_ERR_BUG;
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270 }
271
b08024a8 272 sr_info("session: starting");
9f45fb3a 273
b7c3e849 274 ret = SR_OK;
bb7ef793 275 for (l = session->devs; l; l = l->next) {
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276 sdi = l->data;
277 if ((ret = sdi->driver->dev_acquisition_start(sdi, sdi)) != SR_OK) {
446a0372 278 sr_err("session: %s: could not start an acquisition "
9f45fb3a 279 "(%d)", __func__, ret);
7d658874 280 break;
9f45fb3a 281 }
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282 }
283
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284 /* TODO: What if there are multiple devices? Which return code? */
285
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286 return ret;
287}
288
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289/**
290 * Run the session.
291 *
e0508e67 292 * @return SR_OK upon success, SR_ERR_BUG upon errors.
9f45fb3a 293 */
1a081ca6 294SR_API int sr_session_run(void)
7d658874 295{
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296 if (!session) {
297 sr_err("session: %s: session was NULL; a session must be "
298 "created first, before running it.", __func__);
e0508e67 299 return SR_ERR_BUG;
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300 }
301
bb7ef793 302 if (!session->devs) {
9f45fb3a 303 /* TODO: Actually the case? */
bb7ef793 304 sr_err("session: %s: session->devs was NULL; a session "
9f45fb3a 305 "cannot be run without devices.", __func__);
e0508e67 306 return SR_ERR_BUG;
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307 }
308
b08024a8 309 sr_info("session: running");
7d658874 310
9f45fb3a 311 /* Do we have real sources? */
b7e94111 312 if (session->num_sources == 1 && session->pollfds[0].fd == -1) {
9f45fb3a 313 /* Dummy source, freewheel over it. */
2cbeb2b7 314 while (session->num_sources)
b7e94111 315 session->sources[0].cb(-1, 0, session->sources[0].cb_data);
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316 } else {
317 /* Real sources, use g_poll() main loop. */
8a2efef2 318 sr_session_run_poll();
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319 }
320
e0508e67 321 return SR_OK;
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322}
323
9f45fb3a
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324/**
325 * Halt the current session.
326 *
9ffbde0e
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327 * This function is deprecated and should not be used in new code, use
328 * sr_session_stop() instead. The behaviour of this function is identical to
329 * sr_session_stop().
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330 *
331 * @return SR_OK upon success, SR_ERR_BUG if no session exists.
9f45fb3a 332 */
1a081ca6 333SR_API int sr_session_halt(void)
544a4582 334{
9ffbde0e 335 return sr_session_stop();
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336}
337
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338/**
339 * Stop the current session.
340 *
a1645fcd 341 * The current session is stopped immediately, with all acquisition sessions
c09f0b57 342 * being stopped and hardware drivers cleaned up.
9f45fb3a 343 *
e0508e67 344 * @return SR_OK upon success, SR_ERR_BUG if no session exists.
9f45fb3a 345 */
1a081ca6 346SR_API int sr_session_stop(void)
a1bb33af 347{
de4d3f99 348 struct sr_dev_inst *sdi;
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349 GSList *l;
350
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351 if (!session) {
352 sr_err("session: %s: session was NULL", __func__);
e0508e67 353 return SR_ERR_BUG;
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354 }
355
b08024a8 356 sr_info("session: stopping");
e0508e67 357
bb7ef793 358 for (l = session->devs; l; l = l->next) {
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359 sdi = l->data;
360 if (sdi->driver) {
361 if (sdi->driver->dev_acquisition_stop)
362 sdi->driver->dev_acquisition_stop(sdi, sdi);
8c76be53 363 }
a1bb33af 364 }
9f45fb3a 365
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AG
366 /*
367 * Some sources may not be necessarily associated with a device.
368 * Those sources may still be present even after stopping all devices.
369 * We need to make sure all sources are removed, or we risk running the
370 * session in an infinite loop.
371 */
372 while (session->num_sources)
373 sr_session_source_remove(session->sources[0].poll_object);
374
e0508e67 375 return SR_OK;
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376}
377
9f45fb3a 378/**
a1645fcd 379 * Debug helper.
9f45fb3a 380 *
996b0c72 381 * @param packet The packet to show debugging information for.
9f45fb3a 382 */
bf53457d 383static void datafeed_dump(const struct sr_datafeed_packet *packet)
7d2afd6c 384{
bf53457d
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385 const struct sr_datafeed_logic *logic;
386 const struct sr_datafeed_analog *analog;
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387
388 switch (packet->type) {
389 case SR_DF_HEADER:
390 sr_dbg("bus: received SR_DF_HEADER");
391 break;
392 case SR_DF_TRIGGER:
01469707 393 sr_dbg("bus: received SR_DF_TRIGGER");
7d2afd6c 394 break;
c71bac3b
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395 case SR_DF_META:
396 sr_dbg("bus: received SR_DF_META");
ee7489d2 397 break;
7d2afd6c
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398 case SR_DF_LOGIC:
399 logic = packet->payload;
01469707 400 sr_dbg("bus: received SR_DF_LOGIC %" PRIu64 " bytes", logic->length);
7d2afd6c 401 break;
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402 case SR_DF_ANALOG:
403 analog = packet->payload;
ee7489d2
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404 sr_dbg("bus: received SR_DF_ANALOG %d samples", analog->num_samples);
405 break;
7d2afd6c
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406 case SR_DF_END:
407 sr_dbg("bus: received SR_DF_END");
408 break;
6ea7669c
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409 case SR_DF_FRAME_BEGIN:
410 sr_dbg("bus: received SR_DF_FRAME_BEGIN");
411 break;
412 case SR_DF_FRAME_END:
413 sr_dbg("bus: received SR_DF_FRAME_END");
414 break;
7d2afd6c 415 default:
18beaeff 416 sr_dbg("bus: received unknown packet type %d", packet->type);
9f45fb3a 417 break;
7d2afd6c 418 }
7d2afd6c
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419}
420
9f45fb3a 421/**
a1645fcd
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422 * Send a packet to whatever is listening on the datafeed bus.
423 *
424 * Hardware drivers use this to send a data packet to the frontend.
9f45fb3a 425 *
6b2d8d3e 426 * @param sdi TODO.
31ccebc4 427 * @param packet The datafeed packet to send to the session bus.
44dae539 428 *
e0508e67 429 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments.
b4bd7088
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430 *
431 * @private
9f45fb3a 432 */
de4d3f99 433SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
bf53457d 434 const struct sr_datafeed_packet *packet)
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435{
436 GSList *l;
d08490aa 437 sr_datafeed_callback_t cb;
a1bb33af 438
de4d3f99
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439 if (!sdi) {
440 sr_err("session: %s: sdi was NULL", __func__);
e0508e67 441 return SR_ERR_ARG;
9f45fb3a
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442 }
443
e0508e67
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444 if (!packet) {
445 sr_err("session: %s: packet was NULL", __func__);
446 return SR_ERR_ARG;
9f45fb3a
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447 }
448
62c82025 449 for (l = session->datafeed_callbacks; l; l = l->next) {
18beaeff
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450 if (sr_log_loglevel_get() >= SR_LOG_DBG)
451 datafeed_dump(packet);
a1bb33af 452 cb = l->data;
de4d3f99 453 cb(sdi, packet);
a1bb33af 454 }
9f45fb3a 455
e0508e67 456 return SR_OK;
a1bb33af
UH
457}
458
6b2d8d3e
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459/**
460 * Add an event source for a file descriptor.
461 *
462 * @param pollfd The GPollFD.
463 * @param timeout Max time to wait before the callback is called, ignored if 0.
464 * @param cb Callback function to add. Must not be NULL.
465 * @param cb_data Data for the callback function. Can be NULL.
466 * @param poll_object TODO.
467 *
468 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
469 * SR_ERR_MALLOC upon memory allocation errors.
470 */
aac0ea25 471static int _sr_session_source_add(GPollFD *pollfd, int timeout,
1a895c61 472 sr_receive_data_callback_t cb, void *cb_data, gintptr poll_object)
544a4582
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473{
474 struct source *new_sources, *s;
aac0ea25 475 GPollFD *new_pollfds;
544a4582 476
d08490aa
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477 if (!cb) {
478 sr_err("session: %s: cb was NULL", __func__);
e0508e67 479 return SR_ERR_ARG;
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480 }
481
1f9813eb 482 /* Note: cb_data can be NULL, that's not a bug. */
9f45fb3a 483
2ac2e629
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484 new_pollfds = g_try_realloc(session->pollfds,
485 sizeof(GPollFD) * (session->num_sources + 1));
0687dfcd 486 if (!new_pollfds) {
1a895c61 487 sr_err("session: %s: new_pollfds malloc failed", __func__);
0687dfcd
LPC
488 return SR_ERR_MALLOC;
489 }
490
b7e94111 491 new_sources = g_try_realloc(session->sources, sizeof(struct source) *
2ac2e629 492 (session->num_sources + 1));
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493 if (!new_sources) {
494 sr_err("session: %s: new_sources malloc failed", __func__);
e0508e67 495 return SR_ERR_MALLOC;
9f45fb3a 496 }
544a4582 497
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498 new_pollfds[session->num_sources] = *pollfd;
499 s = &new_sources[session->num_sources++];
544a4582 500 s->timeout = timeout;
d08490aa 501 s->cb = cb;
1f9813eb 502 s->cb_data = cb_data;
aac0ea25 503 s->poll_object = poll_object;
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504 session->pollfds = new_pollfds;
505 session->sources = new_sources;
544a4582 506
b7e94111
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507 if (timeout != session->source_timeout && timeout > 0
508 && (session->source_timeout == -1 || timeout < session->source_timeout))
509 session->source_timeout = timeout;
9f45fb3a 510
e0508e67 511 return SR_OK;
544a4582
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512}
513
9f45fb3a 514/**
6b2d8d3e 515 * Add an event source for a file descriptor.
9f45fb3a 516 *
aac0ea25
LPC
517 * @param fd The file descriptor.
518 * @param events Events to check for.
519 * @param timeout Max time to wait before the callback is called, ignored if 0.
520 * @param cb Callback function to add. Must not be NULL.
521 * @param cb_data Data for the callback function. Can be NULL.
9f45fb3a 522 *
aac0ea25
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523 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
524 * SR_ERR_MALLOC upon memory allocation errors.
525 */
526SR_API int sr_session_source_add(int fd, int events, int timeout,
527 sr_receive_data_callback_t cb, void *cb_data)
528{
529 GPollFD p;
530
aac0ea25
LPC
531 p.fd = fd;
532 p.events = events;
aac0ea25
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533
534 return _sr_session_source_add(&p, timeout, cb, cb_data, (gintptr)fd);
535}
536
537/**
1a895c61 538 * Add an event source for a GPollFD.
aac0ea25 539 *
aac0ea25
LPC
540 * @param pollfd The GPollFD.
541 * @param timeout Max time to wait before the callback is called, ignored if 0.
542 * @param cb Callback function to add. Must not be NULL.
543 * @param cb_data Data for the callback function. Can be NULL.
44dae539 544 *
e0508e67 545 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
aac0ea25 546 * SR_ERR_MALLOC upon memory allocation errors.
9f45fb3a 547 */
aac0ea25
LPC
548SR_API int sr_session_source_add_pollfd(GPollFD *pollfd, int timeout,
549 sr_receive_data_callback_t cb, void *cb_data)
550{
1a895c61
UH
551 return _sr_session_source_add(pollfd, timeout, cb,
552 cb_data, (gintptr)pollfd);
aac0ea25
LPC
553}
554
555/**
1a895c61 556 * Add an event source for a GIOChannel.
aac0ea25 557 *
aac0ea25
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558 * @param channel The GIOChannel.
559 * @param events Events to poll on.
560 * @param timeout Max time to wait before the callback is called, ignored if 0.
561 * @param cb Callback function to add. Must not be NULL.
562 * @param cb_data Data for the callback function. Can be NULL.
563 *
564 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
565 * SR_ERR_MALLOC upon memory allocation errors.
566 */
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567SR_API int sr_session_source_add_channel(GIOChannel *channel, int events,
568 int timeout, sr_receive_data_callback_t cb, void *cb_data)
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569{
570 GPollFD p;
571
572#ifdef _WIN32
6b2d8d3e 573 g_io_channel_win32_make_pollfd(channel, events, &p);
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574#else
575 p.fd = g_io_channel_unix_get_fd(channel);
576 p.events = events;
577#endif
578
579 return _sr_session_source_add(&p, timeout, cb, cb_data, (gintptr)channel);
580}
581
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582/**
583 * Remove the source belonging to the specified channel.
584 *
585 * @todo Add more error checks and logging.
586 *
587 * @param channel The channel for which the source should be removed.
588 *
589 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
590 * SR_ERR_MALLOC upon memory allocation errors, SR_ERR_BUG upon
591 * internal errors.
592 */
aac0ea25 593static int _sr_session_source_remove(gintptr poll_object)
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594{
595 struct source *new_sources;
0687dfcd 596 GPollFD *new_pollfds;
b7e94111 597 unsigned int old;
544a4582 598
b7e94111 599 if (!session->sources || !session->num_sources) {
e0508e67 600 sr_err("session: %s: sources was NULL", __func__);
0abee507 601 return SR_ERR_BUG;
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602 }
603
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604 for (old = 0; old < session->num_sources; old++) {
605 if (session->sources[old].poll_object == poll_object)
2bccd322 606 break;
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607 }
608
2bccd322 609 /* fd not found, nothing to do */
b7e94111 610 if (old == session->num_sources)
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611 return SR_OK;
612
b7e94111 613 session->num_sources -= 1;
2bccd322 614
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615 if (old != session->num_sources) {
616 memmove(&session->pollfds[old], &session->pollfds[old+1],
617 (session->num_sources - old) * sizeof(GPollFD));
618 memmove(&session->sources[old], &session->sources[old+1],
619 (session->num_sources - old) * sizeof(struct source));
9f45fb3a 620 }
544a4582 621
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622 new_pollfds = g_try_realloc(session->pollfds, sizeof(GPollFD) * session->num_sources);
623 if (!new_pollfds && session->num_sources > 0) {
1a895c61 624 sr_err("session: %s: new_pollfds malloc failed", __func__);
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625 return SR_ERR_MALLOC;
626 }
627
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628 new_sources = g_try_realloc(session->sources, sizeof(struct source) * session->num_sources);
629 if (!new_sources && session->num_sources > 0) {
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630 sr_err("session: %s: new_sources malloc failed", __func__);
631 return SR_ERR_MALLOC;
544a4582 632 }
e0508e67 633
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634 session->pollfds = new_pollfds;
635 session->sources = new_sources;
2bccd322 636
e0508e67 637 return SR_OK;
544a4582 638}
aac0ea25 639
6b2d8d3e 640/**
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641 * Remove the source belonging to the specified file descriptor.
642 *
1a895c61 643 * @param fd The file descriptor for which the source should be removed.
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644 *
645 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
646 * SR_ERR_MALLOC upon memory allocation errors, SR_ERR_BUG upon
647 * internal errors.
648 */
649SR_API int sr_session_source_remove(int fd)
650{
651 return _sr_session_source_remove((gintptr)fd);
652}
653
654/**
655 * Remove the source belonging to the specified poll descriptor.
656 *
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657 * @param pollfd The poll descriptor for which the source should be removed.
658 *
659 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
660 * SR_ERR_MALLOC upon memory allocation errors, SR_ERR_BUG upon
661 * internal errors.
662 */
663SR_API int sr_session_source_remove_pollfd(GPollFD *pollfd)
664{
665 return _sr_session_source_remove((gintptr)pollfd);
666}
667
6b2d8d3e 668/**
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669 * Remove the source belonging to the specified channel.
670 *
1a895c61 671 * @param channel The channel for which the source should be removed.
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672 *
673 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
674 * SR_ERR_MALLOC upon memory allocation errors, SR_ERR_BUG upon
675 * internal errors.
676 */
677SR_API int sr_session_source_remove_channel(GIOChannel *channel)
678{
679 return _sr_session_source_remove((gintptr)channel);
680}
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681
682/** @} */