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asterisk
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Merge "taskprocessor: Warn on unused result from pushing task." into 13

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13.24
George Joseph 7 years ago committed by Gerrit Code Review
parent ce2e04801a 01716f70e6
commit b7cb2c90e6
8 changed files with 161 additions and 57 deletions
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12
apps/app_confbridge.c
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@ -1094,13 +1094,15 @@ static void destroy_conference_bridge(void *obj)
if (conference->playback_queue) {
struct hangup_data hangup;
hangup_data_init(&hangup, conference);
ast_taskprocessor_push(conference->playback_queue, hangup_playback, &hangup);
ast_mutex_lock(&hangup.lock);
while (!hangup.hungup) {
ast_cond_wait(&hangup.cond, &hangup.lock);
if (!ast_taskprocessor_push(conference->playback_queue, hangup_playback, &hangup)) {
ast_mutex_lock(&hangup.lock);
while (!hangup.hungup) {
ast_cond_wait(&hangup.cond, &hangup.lock);
}
ast_mutex_unlock(&hangup.lock);
}
ast_mutex_unlock(&hangup.lock);
hangup_data_destroy(&hangup);
} else {
/* Playback queue is not yet allocated. Just hang up the channel straight */

6
include/asterisk/taskprocessor.h
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@ -213,7 +213,8 @@ void *ast_taskprocessor_unreference(struct ast_taskprocessor *tps);
* \retval -1 failure
* \since 1.6.1
*/
int ast_taskprocessor_push(struct ast_taskprocessor *tps, int (*task_exe)(void *datap), void *datap);
int ast_taskprocessor_push(struct ast_taskprocessor *tps, int (*task_exe)(void *datap), void *datap)
attribute_warn_unused_result;
/*! \brief Local data parameter */
struct ast_taskprocessor_local {
@ -239,7 +240,8 @@ struct ast_taskprocessor_local {
* \since 12.0.0
*/
int ast_taskprocessor_push_local(struct ast_taskprocessor *tps,
int (*task_exe)(struct ast_taskprocessor_local *local), void *datap);
int (*task_exe)(struct ast_taskprocessor_local *local), void *datap)
attribute_warn_unused_result;
/*!
* \brief Indicate the taskprocessor is suspended.

3
include/asterisk/threadpool.h
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@ -186,7 +186,8 @@ void ast_threadpool_set_size(struct ast_threadpool *threadpool, unsigned int siz
* \retval 0 success
* \retval -1 failure
*/
int ast_threadpool_push(struct ast_threadpool *pool, int (*task)(void *data), void *data);
int ast_threadpool_push(struct ast_threadpool *pool, int (*task)(void *data), void *data)
attribute_warn_unused_result;
/*!
* \brief Shut down a threadpool and destroy it

5
main/stasis.c
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@ -563,7 +563,10 @@ struct stasis_subscription *stasis_unsubscribe(struct stasis_subscription *sub)
/* When all that's done, remove the ref the mailbox has on the sub */
if (sub->mailbox) {
ast_taskprocessor_push(sub->mailbox, sub_cleanup, sub);
if (ast_taskprocessor_push(sub->mailbox, sub_cleanup, sub)) {
/* Nothing we can do here, the conditional is just to keep
* the compiler happy that we're not ignoring the result. */
}
}
/* Unsubscribing unrefs the subscription */

6
main/taskprocessor.c
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@ -237,7 +237,11 @@ static void default_listener_shutdown(struct ast_taskprocessor_listener *listene
/* Hold a reference during shutdown */
ao2_t_ref(listener->tps, +1, "tps-shutdown");
ast_taskprocessor_push(listener->tps, default_listener_die, pvt);
if (ast_taskprocessor_push(listener->tps, default_listener_die, pvt)) {
/* This will cause the thread to exit early without completing tasks already
* in the queue. This is probably the least bad option in this situation. */
default_listener_die(pvt);
}
ast_assert(pvt->poll_thread != AST_PTHREADT_NULL);

4
main/threadpool.c
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@ -658,7 +658,9 @@ static void threadpool_tps_emptied(struct ast_taskprocessor_listener *listener)
}
if (pool->listener && pool->listener->callbacks->emptied) {
ast_taskprocessor_push(pool->control_tps, queued_emptied, pool);
if (ast_taskprocessor_push(pool->control_tps, queued_emptied, pool)) {
/* Nothing to do here but we need the check to keep the compiler happy. */
}
}
}

28
tests/test_taskprocessor.c
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@ -151,7 +151,10 @@ AST_TEST_DEFINE(default_taskprocessor)
return AST_TEST_FAIL;
}
ast_taskprocessor_push(tps, task, task_data);
if (ast_taskprocessor_push(tps, task, task_data)) {
ast_test_status_update(test, "Failed to queue task\n");
return AST_TEST_FAIL;
}
res = task_wait(task_data);
if (res != 0) {
@ -240,7 +243,11 @@ AST_TEST_DEFINE(default_taskprocessor_load)
for (i = 0; i < NUM_TASKS; ++i) {
rand_data[i] = ast_random();
ast_taskprocessor_push(tps, load_task, &rand_data[i]);
if (ast_taskprocessor_push(tps, load_task, &rand_data[i])) {
ast_test_status_update(test, "Failed to queue task\n");
res = AST_TEST_FAIL;
goto test_end;
}
}
ast_mutex_lock(&load_task_results.lock);
@ -438,14 +445,22 @@ AST_TEST_DEFINE(taskprocessor_listener)
goto test_exit;
}
ast_taskprocessor_push(tps, listener_test_task, NULL);
if (ast_taskprocessor_push(tps, listener_test_task, NULL)) {
ast_test_status_update(test, "Failed to queue task\n");
res = AST_TEST_FAIL;
goto test_exit;
}
if (check_stats(test, pvt, 1, 0, 1) < 0) {
res = AST_TEST_FAIL;
goto test_exit;
}
ast_taskprocessor_push(tps, listener_test_task, NULL);
if (ast_taskprocessor_push(tps, listener_test_task, NULL)) {
ast_test_status_update(test, "Failed to queue task\n");
res = AST_TEST_FAIL;
goto test_exit;
}
if (check_stats(test, pvt, 2, 0, 1) < 0) {
res = AST_TEST_FAIL;
@ -710,7 +725,10 @@ AST_TEST_DEFINE(taskprocessor_push_local)
local_data = 0;
ast_taskprocessor_set_local(tps, &local_data);
ast_taskprocessor_push_local(tps, local_task_exe, task_data);
if (ast_taskprocessor_push_local(tps, local_task_exe, task_data)) {
ast_test_status_update(test, "Failed to queue task\n");
return AST_TEST_FAIL;
}
res = task_wait(task_data);
if (res != 0) {

154
tests/test_threadpool.c
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@ -127,6 +127,18 @@ static struct simple_task_data *simple_task_data_alloc(void)
return std;
}
static void simple_task_data_free(struct simple_task_data *std)
{
if (!std) {
return;
}
ast_mutex_destroy(&std->lock);
ast_cond_destroy(&std->cond);
ast_free(std);
}
static int simple_task(void *data)
{
struct simple_task_data *std = data;
@ -319,7 +331,9 @@ AST_TEST_DEFINE(threadpool_push)
goto end;
}
ast_threadpool_push(pool, simple_task, std);
if (ast_threadpool_push(pool, simple_task, std)) {
goto end;
}
wait_for_task_pushed(listener);
@ -328,7 +342,7 @@ AST_TEST_DEFINE(threadpool_push)
end:
ast_threadpool_shutdown(pool);
ao2_cleanup(listener);
ast_free(std);
simple_task_data_free(std);
ast_free(tld);
return res;
}
@ -635,11 +649,13 @@ AST_TEST_DEFINE(threadpool_thread_timeout_thrash)
}
ast_mutex_unlock(&tld->lock);
ast_threadpool_push(pool, simple_task, std);
res = wait_for_completion(test, std);
if (ast_threadpool_push(pool, simple_task, std)) {
res = AST_TEST_FAIL;
} else {
res = wait_for_completion(test, std);
}
ast_free(std);
simple_task_data_free(std);
if (res == AST_TEST_FAIL) {
goto end;
@ -707,7 +723,9 @@ AST_TEST_DEFINE(threadpool_one_task_one_thread)
goto end;
}
ast_threadpool_push(pool, simple_task, std);
if (ast_threadpool_push(pool, simple_task, std)) {
goto end;
}
ast_threadpool_set_size(pool, 1);
@ -736,7 +754,7 @@ AST_TEST_DEFINE(threadpool_one_task_one_thread)
end:
ast_threadpool_shutdown(pool);
ao2_cleanup(listener);
ast_free(std);
simple_task_data_free(std);
ast_free(tld);
return res;
@ -796,7 +814,10 @@ AST_TEST_DEFINE(threadpool_one_thread_one_task)
goto end;
}
ast_threadpool_push(pool, simple_task, std);
if (ast_threadpool_push(pool, simple_task, std)) {
res = AST_TEST_FAIL;
goto end;
}
res = wait_for_completion(test, std);
if (res == AST_TEST_FAIL) {
@ -819,7 +840,7 @@ AST_TEST_DEFINE(threadpool_one_thread_one_task)
end:
ast_threadpool_shutdown(pool);
ao2_cleanup(listener);
ast_free(std);
simple_task_data_free(std);
ast_free(tld);
return res;
}
@ -882,9 +903,18 @@ AST_TEST_DEFINE(threadpool_one_thread_multiple_tasks)
goto end;
}
ast_threadpool_push(pool, simple_task, std1);
ast_threadpool_push(pool, simple_task, std2);
ast_threadpool_push(pool, simple_task, std3);
res = AST_TEST_FAIL;
if (ast_threadpool_push(pool, simple_task, std1)) {
goto end;
}
if (ast_threadpool_push(pool, simple_task, std2)) {
goto end;
}
if (ast_threadpool_push(pool, simple_task, std3)) {
goto end;
}
res = wait_for_completion(test, std1);
if (res == AST_TEST_FAIL) {
@ -914,9 +944,9 @@ AST_TEST_DEFINE(threadpool_one_thread_multiple_tasks)
end:
ast_threadpool_shutdown(pool);
ao2_cleanup(listener);
ast_free(std1);
ast_free(std2);
ast_free(std3);
simple_task_data_free(std1);
simple_task_data_free(std2);
simple_task_data_free(std3);
ast_free(tld);
return res;
}
@ -1011,7 +1041,9 @@ AST_TEST_DEFINE(threadpool_auto_increment)
goto end;
}
ast_threadpool_push(pool, simple_task, std1);
if (ast_threadpool_push(pool, simple_task, std1)) {
goto end;
}
/* Pushing the task should result in the threadpool growing
* by three threads. This will allow the task to actually execute
@ -1034,9 +1066,19 @@ AST_TEST_DEFINE(threadpool_auto_increment)
/* Now push three tasks into the pool and ensure the pool does not
* grow.
*/
ast_threadpool_push(pool, simple_task, std2);
ast_threadpool_push(pool, simple_task, std3);
ast_threadpool_push(pool, simple_task, std4);
res = AST_TEST_FAIL;
if (ast_threadpool_push(pool, simple_task, std2)) {
goto end;
}
if (ast_threadpool_push(pool, simple_task, std3)) {
goto end;
}
if (ast_threadpool_push(pool, simple_task, std4)) {
goto end;
}
res = wait_for_completion(test, std2);
if (res == AST_TEST_FAIL) {
@ -1064,10 +1106,10 @@ AST_TEST_DEFINE(threadpool_auto_increment)
end:
ast_threadpool_shutdown(pool);
ao2_cleanup(listener);
ast_free(std1);
ast_free(std2);
ast_free(std3);
ast_free(std4);
simple_task_data_free(std1);
simple_task_data_free(std2);
simple_task_data_free(std3);
simple_task_data_free(std4);
ast_free(tld);
return res;
}
@ -1121,7 +1163,9 @@ AST_TEST_DEFINE(threadpool_max_size)
goto end;
}
ast_threadpool_push(pool, simple_task, std);
if (ast_threadpool_push(pool, simple_task, std)) {
goto end;
}
res = wait_for_completion(test, std);
if (res == AST_TEST_FAIL) {
@ -1137,7 +1181,7 @@ AST_TEST_DEFINE(threadpool_max_size)
end:
ast_threadpool_shutdown(pool);
ao2_cleanup(listener);
ast_free(std);
simple_task_data_free(std);
ast_free(tld);
return res;
}
@ -1193,7 +1237,9 @@ AST_TEST_DEFINE(threadpool_reactivation)
goto end;
}
ast_threadpool_push(pool, simple_task, std1);
if (ast_threadpool_push(pool, simple_task, std1)) {
goto end;
}
ast_threadpool_set_size(pool, 1);
@ -1218,7 +1264,10 @@ AST_TEST_DEFINE(threadpool_reactivation)
}
/* Now make sure the threadpool reactivates when we add a second task */
ast_threadpool_push(pool, simple_task, std2);
if (ast_threadpool_push(pool, simple_task, std2)) {
res = AST_TEST_FAIL;
goto end;
}
res = wait_for_completion(test, std2);
if (res == AST_TEST_FAIL) {
@ -1240,8 +1289,8 @@ AST_TEST_DEFINE(threadpool_reactivation)
end:
ast_threadpool_shutdown(pool);
ao2_cleanup(listener);
ast_free(std1);
ast_free(std2);
simple_task_data_free(std1);
simple_task_data_free(std2);
ast_free(tld);
return res;
@ -1269,6 +1318,19 @@ static struct complex_task_data *complex_task_data_alloc(void)
return ctd;
}
static void complex_task_data_free(struct complex_task_data *ctd)
{
if (!ctd) {
return;
}
ast_mutex_destroy(&ctd->lock);
ast_cond_destroy(&ctd->stall_cond);
ast_cond_destroy(&ctd->notify_cond);
ast_free(ctd);
}
static int complex_task(void *data)
{
struct complex_task_data *ctd = data;
@ -1400,8 +1462,13 @@ AST_TEST_DEFINE(threadpool_task_distribution)
goto end;
}
ast_threadpool_push(pool, complex_task, ctd1);
ast_threadpool_push(pool, complex_task, ctd2);
if (ast_threadpool_push(pool, complex_task, ctd1)) {
goto end;
}
if (ast_threadpool_push(pool, complex_task, ctd2)) {
goto end;
}
ast_threadpool_set_size(pool, 2);
@ -1438,8 +1505,8 @@ AST_TEST_DEFINE(threadpool_task_distribution)
end:
ast_threadpool_shutdown(pool);
ao2_cleanup(listener);
ast_free(ctd1);
ast_free(ctd2);
complex_task_data_free(ctd1);
complex_task_data_free(ctd2);
ast_free(tld);
return res;
}
@ -1496,8 +1563,13 @@ AST_TEST_DEFINE(threadpool_more_destruction)
goto end;
}
ast_threadpool_push(pool, complex_task, ctd1);
ast_threadpool_push(pool, complex_task, ctd2);
if (ast_threadpool_push(pool, complex_task, ctd1)) {
goto end;
}
if (ast_threadpool_push(pool, complex_task, ctd2)) {
goto end;
}
ast_threadpool_set_size(pool, 4);
@ -1549,8 +1621,8 @@ AST_TEST_DEFINE(threadpool_more_destruction)
end:
ast_threadpool_shutdown(pool);
ao2_cleanup(listener);
ast_free(ctd1);
ast_free(ctd2);
complex_task_data_free(ctd1);
complex_task_data_free(ctd2);
ast_free(tld);
return res;
}
@ -1666,9 +1738,9 @@ end:
poke_worker(data3);
ast_taskprocessor_unreference(uut);
ast_threadpool_shutdown(pool);
ast_free(data1);
ast_free(data2);
ast_free(data3);
complex_task_data_free(data1);
complex_task_data_free(data2);
complex_task_data_free(data3);
return res;
}

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