kenmirrors/freeswitch
1
0
Fork 0
mirror of https://github.com/signalwire/freeswitch.git synced 2025-08-13 17:38:59 +00:00
Code Issues Projects Releases Wiki Activity

freetdm: remove busy-waiting and use ftdm interrupt to wait for state change completion

Browse Source
This commit is contained in:
Moises Silva
2010-12-30 10:23:56 -05:00
parent 55da2afa7f
commit 903d136481
4 changed files with 61 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
libs/freetdm/src/ftdm_threadmutex.c
View File

@@ -56,7 +56,11 @@ struct ftdm_interrupt {
/* for generic interruption */
HANDLE event;
#else
/* for generic interruption */
/* In theory we could be using thread conditions for generic interruption,
* however, Linux does not have a primitive like Windows WaitForMultipleObjects
* to wait for both thread condition and file descriptors, therefore we decided
* to use a dummy pipe for generic interruption/condition logic
* */
int readfd;
int writefd;
#endif
@@ -243,6 +247,7 @@ FT_DECLARE(ftdm_status_t) _ftdm_mutex_unlock(ftdm_mutex_t *mutex)
FT_DECLARE(ftdm_status_t) ftdm_interrupt_create(ftdm_interrupt_t **ininterrupt, ftdm_socket_t device)
{
ftdm_status_t status = FTDM_SUCCESS;
ftdm_interrupt_t *interrupt = NULL;
#ifndef WIN32
int fds[2];
@@ -253,7 +258,7 @@ FT_DECLARE(ftdm_status_t) ftdm_interrupt_create(ftdm_interrupt_t **ininterrupt,
interrupt = ftdm_calloc(1, sizeof(*interrupt));
if (!interrupt) {
ftdm_log(FTDM_LOG_ERROR, "Failed to allocate interrupt memory\n");
return FTDM_FAIL;
return FTDM_ENOMEM;
}
interrupt->device = device;
@@ -261,11 +266,13 @@ FT_DECLARE(ftdm_status_t) ftdm_interrupt_create(ftdm_interrupt_t **ininterrupt,
interrupt->event = CreateEvent(NULL, FALSE, FALSE, NULL);
if (!interrupt->event) {
ftdm_log(FTDM_LOG_ERROR, "Failed to allocate interrupt event\n");
status = FTDM_ENOMEM;
goto failed;
}
#else
if (pipe(fds)) {
ftdm_log(FTDM_LOG_ERROR, "Failed to allocate interrupt pipe: %s\n", strerror(errno));
status = FTDM_FAIL;
goto failed;
}
interrupt->readfd = fds[0];
@@ -287,7 +294,7 @@ failed:
#endif
ftdm_safe_free(interrupt);
}
return FTDM_FAIL;
return status;
}
#define ONE_BILLION 1000000000