[threads] Added missing initializers, check errors on mutex/cond calls

This commit is contained in:
Scott Shambarger 2017-01-13 17:32:59 -05:00
parent ca6836f638
commit b54d94fda6
8 changed files with 207 additions and 93 deletions

View File

@ -20,14 +20,13 @@
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "logger.h"
#include "misc.h"
struct command
{
@ -79,7 +78,7 @@ command_cb_sync(struct commands_base *cmdbase, struct command *cmd)
{
enum command_state cmdstate;
pthread_mutex_lock(&cmd->lck);
fork_mutex_lock(&cmd->lck);
cmdstate = cmd->func(cmd->arg, &cmd->ret);
if (cmdstate == COMMAND_PENDING)
@ -95,8 +94,8 @@ command_cb_sync(struct commands_base *cmdbase, struct command *cmd)
cmd->func_bh(cmd->arg, &cmd->ret);
// Signal the calling thread that the command execution finished
pthread_cond_signal(&cmd->cond);
pthread_mutex_unlock(&cmd->lck);
fork_cond_signal(&cmd->cond);
fork_mutex_unlock(&cmd->lck);
event_add(cmdbase->command_event, NULL);
}
@ -284,8 +283,8 @@ commands_exec_end(struct commands_base *cmdbase, int retvalue)
{
cmdbase->current_cmd->func_bh(cmdbase->current_cmd->arg, &cmdbase->current_cmd->ret);
}
pthread_cond_signal(&cmdbase->current_cmd->cond);
pthread_mutex_unlock(&cmdbase->current_cmd->lck);
fork_cond_signal(&cmdbase->current_cmd->cond);
fork_mutex_unlock(&cmdbase->current_cmd->lck);
cmdbase->current_cmd = NULL;
@ -318,18 +317,25 @@ commands_exec_sync(struct commands_base *cmdbase, command_function func, command
cmd.arg = arg;
cmd.nonblock = 0;
pthread_mutex_lock(&cmd.lck);
fork_mutex_init(&cmd.lck);
fork_cond_init(&cmd.cond);
fork_mutex_lock(&cmd.lck);
ret = send_command(cmdbase, &cmd);
if (ret < 0)
{
DPRINTF(E_LOG, L_MAIN, "Error sending command\n");
pthread_mutex_unlock(&cmd.lck);
return -1;
cmd.ret = -1;
}
else
{
fork_cond_wait(&cmd.cond, &cmd.lck);
}
fork_mutex_unlock(&cmd.lck);
pthread_cond_wait(&cmd.cond, &cmd.lck);
pthread_mutex_unlock(&cmd.lck);
fork_cond_destroy(&cmd.cond);
fork_mutex_destroy(&cmd.lck);
return cmd.ret;
}

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@ -35,8 +35,6 @@
#include <sys/mman.h>
#include <limits.h>
#include <pthread.h>
#include <sqlite3.h>
#include "conffile.h"
@ -532,12 +530,12 @@ unlock_notify_cb(void **args, int nargs)
{
u = (struct db_unlock *)args[i];
pthread_mutex_lock(&u->lck);
fork_mutex_lock(&u->lck);
u->proceed = 1;
pthread_cond_signal(&u->cond);
fork_cond_signal(&u->cond);
pthread_mutex_unlock(&u->lck);
fork_mutex_unlock(&u->lck);
}
}
@ -548,25 +546,25 @@ db_wait_unlock(void)
int ret;
u.proceed = 0;
pthread_mutex_init(&u.lck, NULL);
pthread_cond_init(&u.cond, NULL);
fork_mutex_init(&u.lck);
fork_cond_init(&u.cond);
ret = sqlite3_unlock_notify(hdl, unlock_notify_cb, &u);
if (ret == SQLITE_OK)
{
pthread_mutex_lock(&u.lck);
fork_mutex_lock(&u.lck);
if (!u.proceed)
{
DPRINTF(E_INFO, L_DB, "Waiting for database unlock\n");
pthread_cond_wait(&u.cond, &u.lck);
fork_cond_wait(&u.cond, &u.lck);
}
pthread_mutex_unlock(&u.lck);
fork_mutex_unlock(&u.lck);
}
pthread_cond_destroy(&u.cond);
pthread_mutex_destroy(&u.lck);
fork_cond_destroy(&u.cond);
fork_mutex_destroy(&u.lck);
return ret;
}

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@ -20,6 +20,8 @@
# include <config.h>
#endif
#include "logger.h"
#include <stdio.h>
#include <unistd.h>
#include <stdarg.h>
@ -27,15 +29,13 @@
#include <time.h>
#include <errno.h>
#include <sys/stat.h>
#include <pthread.h>
#include <event2/event.h>
#include <libavutil/log.h>
#include "conffile.h"
#include "logger.h"
#include "misc.h"
static pthread_mutex_t logger_lck = PTHREAD_MUTEX_INITIALIZER;
static int logdomains;
@ -90,11 +90,11 @@ vlogger(int severity, int domain, const char *fmt, va_list args)
if (!((1 << domain) & logdomains) || (severity > threshold))
return;
pthread_mutex_lock(&logger_lck);
fork_mutex_lock(&logger_lck);
if (!logfile && !console)
{
pthread_mutex_unlock(&logger_lck);
fork_mutex_unlock(&logger_lck);
return;
}
@ -123,7 +123,7 @@ vlogger(int severity, int domain, const char *fmt, va_list args)
va_end(ap);
}
pthread_mutex_unlock(&logger_lck);
fork_mutex_unlock(&logger_lck);
}
void
@ -204,7 +204,7 @@ logger_reinit(void)
if (!logfile)
return;
pthread_mutex_lock(&logger_lck);
fork_mutex_lock(&logger_lck);
fp = fopen(logfilename, "a");
if (!fp)
@ -218,7 +218,7 @@ logger_reinit(void)
logfile = fp;
out:
pthread_mutex_unlock(&logger_lck);
fork_mutex_unlock(&logger_lck);
}

View File

@ -44,8 +44,6 @@
# include <sys/event.h>
#endif
#include <pthread.h>
#include <getopt.h>
#include <event2/event.h>
#include <libavutil/log.h>
@ -422,26 +420,29 @@ signal_kqueue_cb(int fd, short event, void *arg)
static int
ffmpeg_lockmgr(void **mutex, enum AVLockOp op)
ffmpeg_lockmgr(void **pmutex, enum AVLockOp op)
{
switch (op)
{
case AV_LOCK_CREATE:
*mutex = malloc(sizeof(pthread_mutex_t));
if (!*mutex)
*pmutex = malloc(sizeof(pthread_mutex_t));
if (!*pmutex)
return 1;
return !!pthread_mutex_init(*mutex, NULL);
fork_mutex_init(*pmutex);
return 0;
case AV_LOCK_OBTAIN:
return !!pthread_mutex_lock(*mutex);
fork_mutex_lock(*pmutex);
return 0;
case AV_LOCK_RELEASE:
return !!pthread_mutex_unlock(*mutex);
fork_mutex_unlock(*pmutex);
return 0;
case AV_LOCK_DESTROY:
pthread_mutex_destroy(*mutex);
free(*mutex);
fork_mutex_destroy(*pmutex);
free(*pmutex);
*pmutex = NULL;
return 0;
}

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@ -33,6 +33,7 @@
#include <stdint.h>
#include <limits.h>
#include <sys/param.h>
#include <assert.h>
#include <unistr.h>
#include <uniconv.h>
@ -918,3 +919,88 @@ timespec_cmp(struct timespec time1, struct timespec time2)
else
return 0;
}
void
fork_mutex_init(pthread_mutex_t *mutex)
{
pthread_mutexattr_t mattr;
int err;
err = pthread_mutexattr_init(&mattr);
assert(err == 0);
err = pthread_mutexattr_settype(&mattr, PTHREAD_MUTEX_ERRORCHECK);
assert(err == 0);
err = pthread_mutex_init(mutex, &mattr);
assert(err == 0);
err = pthread_mutexattr_destroy(&mattr);
assert(err == 0);
}
void
fork_mutex_lock(pthread_mutex_t *mutex)
{
int err;
err = pthread_mutex_lock(mutex);
assert(err == 0);
}
void
fork_mutex_unlock(pthread_mutex_t *mutex)
{
int err;
err = pthread_mutex_unlock(mutex);
assert(err == 0);
}
void
fork_mutex_destroy(pthread_mutex_t *mutex)
{
int err;
err = pthread_mutex_destroy(mutex);
assert(err == 0);
}
/* condition wrappers with checks */
void
fork_cond_init(pthread_cond_t *cond)
{
int err;
err = pthread_cond_init(cond, NULL);
assert(err == 0);
}
void
fork_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
{
int err;
err = pthread_cond_wait(cond, mutex);
assert(err == 0);
}
int
fork_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
const struct timespec *ts)
{
int err;
err = pthread_cond_timedwait(cond, mutex, ts);
if(err == ETIMEDOUT)
return err;
assert(err == 0);
return err;
}
void
fork_cond_signal(pthread_cond_t *cond)
{
int err;
err = pthread_cond_signal(cond);
assert(err == 0);
}
void
fork_cond_destroy(pthread_cond_t *cond)
{
int err;
err = pthread_cond_destroy(cond);
assert(err == 0);
}

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@ -8,6 +8,7 @@
#include <stdint.h>
#include <time.h>
#include <pthread.h>
struct onekeyval {
char *name;
@ -96,4 +97,27 @@ timespec_add(struct timespec time1, struct timespec time2);
int
timespec_cmp(struct timespec time1, struct timespec time2);
/* mutex wrappers with checks */
void
fork_mutex_init(pthread_mutex_t *mutex);
void
fork_mutex_lock(pthread_mutex_t *mutex);
void
fork_mutex_unlock(pthread_mutex_t *mutex);
void
fork_mutex_destroy(pthread_mutex_t *mutex);
/* condition wrappers with checks */
void
fork_cond_init(pthread_cond_t *cond);
void
fork_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
int
fork_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
const struct timespec *ts);
void
fork_cond_signal(pthread_cond_t *cond);
void
fork_cond_destroy(pthread_cond_t *cond);
#endif /* !__MISC_H__ */

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@ -39,7 +39,6 @@
#include <stdint.h>
#include <inttypes.h>
#include <errno.h>
#include <pthread.h>
#ifdef HAVE_EVENTFD
# include <sys/eventfd.h>
@ -661,7 +660,7 @@ pairing_cb(int fd, short event, void *arg)
for (;;)
{
pthread_mutex_lock(&remote_lck);
fork_mutex_lock(&remote_lck);
for (ri = remote_list; ri; ri = ri->next)
{
@ -673,7 +672,7 @@ pairing_cb(int fd, short event, void *arg)
}
}
pthread_mutex_unlock(&remote_lck);
fork_mutex_unlock(&remote_lck);
if (!ri)
break;
@ -700,11 +699,11 @@ touch_remote_cb(const char *name, const char *type, const char *domain, const ch
* failed; any subsequent attempt will need a new pairing pin, so
* we can just forget everything we know about the remote.
*/
pthread_mutex_lock(&remote_lck);
fork_mutex_lock(&remote_lck);
remove_remote_address_byid(name, family);
pthread_mutex_unlock(&remote_lck);
fork_mutex_unlock(&remote_lck);
}
else
{
@ -762,7 +761,7 @@ touch_remote_cb(const char *name, const char *type, const char *domain, const ch
DPRINTF(E_LOG, L_REMOTE, "Discovered remote '%s' (id %s) at %s:%d, paircode %s\n", devname, name, address, port, paircode);
/* Add the data to the list, adding the remote to the list if needed */
pthread_mutex_lock(&remote_lck);
fork_mutex_lock(&remote_lck);
ret = add_remote_mdns_data(name, family, address, port, devname, paircode);
@ -776,7 +775,7 @@ touch_remote_cb(const char *name, const char *type, const char *domain, const ch
else if (ret == 1)
kickoff_pairing();
pthread_mutex_unlock(&remote_lck);
fork_mutex_unlock(&remote_lck);
}
}
@ -886,7 +885,7 @@ remote_pairing_read_pin(char *path)
DPRINTF(E_LOG, L_REMOTE, "Read Remote pairing data (name '%s', pin '%s') from %s\n", devname, pin, path);
pthread_mutex_lock(&remote_lck);
fork_mutex_lock(&remote_lck);
ret = add_remote_pin_data(devname, pin);
free(devname);
@ -895,7 +894,7 @@ remote_pairing_read_pin(char *path)
else
kickoff_pairing();
pthread_mutex_unlock(&remote_lck);
fork_mutex_unlock(&remote_lck);
}

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@ -1489,7 +1489,7 @@ audio_fifo_flush(void)
DPRINTF(E_DBG, L_SPOTIFY, "Flushing audio fifo\n");
pthread_mutex_lock(&g_audio_fifo->mutex);
fork_mutex_lock(&g_audio_fifo->mutex);
while((afd = TAILQ_FIRST(&g_audio_fifo->q))) {
TAILQ_REMOVE(&g_audio_fifo->q, afd, link);
@ -1498,7 +1498,7 @@ audio_fifo_flush(void)
g_audio_fifo->qlen = 0;
g_audio_fifo->fullcount = 0;
pthread_mutex_unlock(&g_audio_fifo->mutex);
fork_mutex_unlock(&g_audio_fifo->mutex);
}
static enum command_state
@ -1678,7 +1678,7 @@ audio_get(void *arg, int *retval)
if (g_state == SPOTIFY_STATE_PAUSED)
playback_play(NULL, retval);
pthread_mutex_lock(&g_audio_fifo->mutex);
fork_mutex_lock(&g_audio_fifo->mutex);
while ((processed < audio->wanted) && (g_state != SPOTIFY_STATE_STOPPED))
{
@ -1701,7 +1701,7 @@ audio_get(void *arg, int *retval)
DPRINTF(E_DBG, L_SPOTIFY, "Waiting for audio\n");
timeout += 5;
mk_reltime(&ts, 5);
pthread_cond_timedwait(&g_audio_fifo->cond, &g_audio_fifo->mutex, &ts);
fork_cond_timedwait(&g_audio_fifo->cond, &g_audio_fifo->mutex, &ts);
}
if ((!afd) && (timeout >= SPOTIFY_TIMEOUT))
@ -1725,7 +1725,7 @@ audio_get(void *arg, int *retval)
if (ret < 0)
{
DPRINTF(E_LOG, L_SPOTIFY, "Out of memory for evbuffer (tried to add %d bytes)\n", s);
pthread_mutex_unlock(&g_audio_fifo->mutex);
fork_mutex_unlock(&g_audio_fifo->mutex);
*retval = -1;
return COMMAND_END;
}
@ -1733,7 +1733,7 @@ audio_get(void *arg, int *retval)
processed += s;
}
pthread_mutex_unlock(&g_audio_fifo->mutex);
fork_mutex_unlock(&g_audio_fifo->mutex);
*retval = processed;
@ -1744,15 +1744,15 @@ static void
artwork_loaded_cb(sp_image *image, void *userdata)
{
struct artwork_get_param *artwork;
artwork = userdata;
pthread_mutex_lock(&artwork->mutex);
fork_mutex_lock(&artwork->mutex);
artwork->is_loaded = 1;
pthread_cond_signal(&artwork->cond);
pthread_mutex_unlock(&artwork->mutex);
fork_cond_signal(&artwork->cond);
fork_mutex_unlock(&artwork->mutex);
}
static enum command_state
@ -1989,10 +1989,10 @@ logged_out(sp_session *sess)
{
DPRINTF(E_INFO, L_SPOTIFY, "Logout complete\n");
pthread_mutex_lock(&login_lck);
fork_mutex_lock(&login_lck);
pthread_cond_signal(&login_cond);
pthread_mutex_unlock(&login_lck);
fork_cond_signal(&login_cond);
fork_mutex_unlock(&login_lck);
}
/**
@ -2017,7 +2017,7 @@ static int music_delivery(sp_session *sess, const sp_audioformat *format,
if (num_frames == 0)
return 0; // Audio discontinuity, do nothing
pthread_mutex_lock(&g_audio_fifo->mutex);
fork_mutex_lock(&g_audio_fifo->mutex);
/* Buffer three seconds of audio */
if (g_audio_fifo->qlen > (3 * format->sample_rate))
@ -2033,7 +2033,7 @@ static int music_delivery(sp_session *sess, const sp_audioformat *format,
g_audio_fifo->fullcount = 0;
}
pthread_mutex_unlock(&g_audio_fifo->mutex);
fork_mutex_unlock(&g_audio_fifo->mutex);
return 0;
}
@ -2050,8 +2050,8 @@ static int music_delivery(sp_session *sess, const sp_audioformat *format,
TAILQ_INSERT_TAIL(&g_audio_fifo->q, afd, link);
g_audio_fifo->qlen += num_frames;
pthread_cond_signal(&g_audio_fifo->cond);
pthread_mutex_unlock(&g_audio_fifo->mutex);
fork_cond_signal(&g_audio_fifo->cond);
fork_mutex_unlock(&g_audio_fifo->mutex);
return num_frames;
}
@ -2371,23 +2371,23 @@ spotify_artwork_get(struct evbuffer *evbuf, char *path, int max_w, int max_h)
artwork.max_w = max_w;
artwork.max_h = max_h;
pthread_mutex_init(&artwork.mutex, NULL);
pthread_cond_init(&artwork.cond, NULL);
fork_mutex_init(&artwork.mutex);
fork_cond_init(&artwork.cond);
ret = commands_exec_sync(cmdbase, artwork_get, NULL, &artwork);
// Artwork was not ready, wait for callback from libspotify
if (ret == 0)
{
pthread_mutex_lock(&artwork.mutex);
fork_mutex_lock(&artwork.mutex);
mk_reltime(&ts, SPOTIFY_ARTWORK_TIMEOUT);
if (!artwork.is_loaded)
pthread_cond_timedwait(&artwork.cond, &artwork.mutex, &ts);
pthread_mutex_unlock(&artwork.mutex);
fork_cond_timedwait(&artwork.cond, &artwork.mutex, &ts);
fork_mutex_unlock(&artwork.mutex);
ret = commands_exec_sync(cmdbase, artwork_get_bh, NULL, &artwork);
}
return ret;
}
@ -2499,7 +2499,7 @@ spotify_login(char *path)
if (SP_CONNECTION_STATE_LOGGED_IN == fptr_sp_session_connectionstate(g_sess))
{
pthread_mutex_lock(&login_lck);
fork_mutex_lock(&login_lck);
DPRINTF(E_LOG, L_SPOTIFY, "Logging out of Spotify (current state is %d)\n", g_state);
@ -2509,12 +2509,12 @@ spotify_login(char *path)
if (SP_ERROR_OK != err)
{
DPRINTF(E_LOG, L_SPOTIFY, "Could not logout of Spotify: %s\n", fptr_sp_error_message(err));
pthread_mutex_unlock(&login_lck);
fork_mutex_unlock(&login_lck);
return;
}
pthread_cond_wait(&login_cond, &login_lck);
pthread_mutex_unlock(&login_lck);
fork_cond_wait(&login_cond, &login_lck);
fork_mutex_unlock(&login_lck);
}
DPRINTF(E_INFO, L_SPOTIFY, "Logging into Spotify\n");
@ -2649,11 +2649,11 @@ spotify_init(void)
}
TAILQ_INIT(&g_audio_fifo->q);
g_audio_fifo->qlen = 0;
pthread_mutex_init(&g_audio_fifo->mutex, NULL);
pthread_cond_init(&g_audio_fifo->cond, NULL);
fork_mutex_init(&g_audio_fifo->mutex);
fork_cond_init(&g_audio_fifo->cond);
pthread_mutex_init(&login_lck, NULL);
pthread_cond_init(&login_cond, NULL);
fork_mutex_init(&login_lck);
fork_cond_init(&login_cond);
/* Spawn thread */
ret = pthread_create(&tid_spotify, NULL, spotify, NULL);
@ -2673,11 +2673,11 @@ spotify_init(void)
return 0;
thread_fail:
pthread_cond_destroy(&login_cond);
pthread_mutex_destroy(&login_lck);
fork_cond_destroy(&login_cond);
fork_mutex_destroy(&login_lck);
pthread_cond_destroy(&g_audio_fifo->cond);
pthread_mutex_destroy(&g_audio_fifo->mutex);
fork_cond_destroy(&g_audio_fifo->cond);
fork_mutex_destroy(&g_audio_fifo->mutex);
free(g_audio_fifo);
audio_fifo_fail:
@ -2737,12 +2737,12 @@ spotify_deinit(void)
close(g_notify_pipe[1]);
/* Destroy locks */
pthread_cond_destroy(&login_cond);
pthread_mutex_destroy(&login_lck);
fork_cond_destroy(&login_cond);
fork_mutex_destroy(&login_lck);
/* Clear audio fifo */
pthread_cond_destroy(&g_audio_fifo->cond);
pthread_mutex_destroy(&g_audio_fifo->mutex);
fork_cond_destroy(&g_audio_fifo->cond);
fork_mutex_destroy(&g_audio_fifo->mutex);
free(g_audio_fifo);
/* Release libspotify handle */