diff --git a/include/asterisk/timing.h b/include/asterisk/timing.h index 9cbb0eba10c0f2831435eca7889859dd60a116af..ff4947a0a638d060c59fccfb79ba63bd9f7e4143 100644 --- a/include/asterisk/timing.h +++ b/include/asterisk/timing.h @@ -18,33 +18,33 @@ */ /*! - \file timing.h - \brief Timing source management - \author Kevin P. Fleming <kpfleming@digium.com> - \author Russell Bryant <russell@digium.com> + \file timing.h + \brief Timing source management + \author Kevin P. Fleming <kpfleming@digium.com> + \author Russell Bryant <russell@digium.com> - Portions of Asterisk require a timing source, a periodic trigger - for media handling activities. The functions in this file allow - a loadable module to provide a timing source for Asterisk and its - modules, so that those modules can request a 'timing handle' when - they require one. These handles are file descriptors, which can be - used with select() or poll(). + Portions of Asterisk require a timing source, a periodic trigger + for media handling activities. The functions in this file allow + a loadable module to provide a timing source for Asterisk and its + modules, so that those modules can request a 'timing handle' when + they require one. These handles are file descriptors, which can be + used with select() or poll(). - The timing source used by Asterisk must provide the following - features: + The timing source used by Asterisk must provide the following + features: - 1) Periodic triggers, with a configurable interval (specified as - number of triggers per second). + 1) Periodic triggers, with a configurable interval (specified as + number of triggers per second). - 2) Multiple outstanding triggers, each of which must be 'acked' - to clear it. Triggers must also be 'ackable' in quantity. + 2) Multiple outstanding triggers, each of which must be 'acked' + to clear it. Triggers must also be 'ackable' in quantity. - 3) Continuous trigger mode, which when enabled causes every call - to poll() on the timer handle to immediately return. + 3) Continuous trigger mode, which when enabled causes every call + to poll() on the timer handle to immediately return. - 4) Multiple 'event types', so that the code using the timer can - know whether the wakeup it received was due to a periodic trigger - or a continuous trigger. + 4) Multiple 'event types', so that the code using the timer can + know whether the wakeup it received was due to a periodic trigger + or a continuous trigger. */ #ifndef _ASTERISK_TIMING_H @@ -71,14 +71,15 @@ struct ast_timing_interface { /*! This handles the case where multiple timing modules are loaded. * The highest priority timing interface available will be used. */ unsigned int priority; - int (*timer_open)(void); - void (*timer_close)(int handle); - int (*timer_set_rate)(int handle, unsigned int rate); - int (*timer_ack)(int handle, unsigned int quantity); - int (*timer_enable_continuous)(int handle); - int (*timer_disable_continuous)(int handle); - enum ast_timer_event (*timer_get_event)(int handle); - unsigned int (*timer_get_max_rate)(int handle); + void *(*timer_open)(void); + void (*timer_close)(void *data); + int (*timer_set_rate)(void *data, unsigned int rate); + int (*timer_ack)(void *data, unsigned int quantity); + int (*timer_enable_continuous)(void *data); + int (*timer_disable_continuous)(void *data); + enum ast_timer_event (*timer_get_event)(void *data); + unsigned int (*timer_get_max_rate)(void *data); + int (*timer_fd)(void *data); }; /*! @@ -93,7 +94,7 @@ struct ast_timing_interface { */ #define ast_register_timing_interface(i) _ast_register_timing_interface(i, ast_module_info->self) void *_ast_register_timing_interface(struct ast_timing_interface *funcs, - struct ast_module *mod); + struct ast_module *mod); /*! * \brief Unregister a previously registered timing interface. diff --git a/main/timing.c b/main/timing.c index 84bff081bd44d8feeb53e5157f306cb622e17bda..5318ded0614615f6959b8f5c8525394ec78ce5f3 100644 --- a/main/timing.c +++ b/main/timing.c @@ -54,7 +54,7 @@ struct timing_holder { static struct ast_heap *timing_interfaces; struct ast_timer { - int fd; + void *data; struct timing_holder *holder; }; @@ -84,7 +84,8 @@ void *_ast_register_timing_interface(struct ast_timing_interface *funcs, !funcs->timer_get_event || !funcs->timer_get_max_rate || !funcs->timer_enable_continuous || - !funcs->timer_disable_continuous) { + !funcs->timer_disable_continuous || + !funcs->timer_fd) { return NULL; } @@ -122,22 +123,22 @@ int ast_unregister_timing_interface(void *handle) struct ast_timer *ast_timer_open(void) { - int fd = -1; + void *data = NULL; struct timing_holder *h; struct ast_timer *t = NULL; ast_heap_rdlock(timing_interfaces); if ((h = ast_heap_peek(timing_interfaces, 1))) { - fd = h->iface->timer_open(); + data = h->iface->timer_open(); ast_module_ref(h->mod); } - if (fd != -1) { + if (data) { if (!(t = ast_calloc(1, sizeof(*t)))) { - h->iface->timer_close(fd); + h->iface->timer_close(data); } else { - t->fd = fd; + t->data = data; t->holder = h; } } @@ -149,69 +150,44 @@ struct ast_timer *ast_timer_open(void) void ast_timer_close(struct ast_timer *handle) { - handle->holder->iface->timer_close(handle->fd); - handle->fd = -1; + handle->holder->iface->timer_close(handle->data); ast_module_unref(handle->holder->mod); ast_free(handle); } int ast_timer_fd(const struct ast_timer *handle) { - return handle->fd; + return handle->holder->iface->timer_fd(handle->data); } int ast_timer_set_rate(const struct ast_timer *handle, unsigned int rate) { - int res = -1; - - res = handle->holder->iface->timer_set_rate(handle->fd, rate); - - return res; + return handle->holder->iface->timer_set_rate(handle->data, rate); } int ast_timer_ack(const struct ast_timer *handle, unsigned int quantity) { - int res = -1; - - res = handle->holder->iface->timer_ack(handle->fd, quantity); - - return res; + return handle->holder->iface->timer_ack(handle->data, quantity); } int ast_timer_enable_continuous(const struct ast_timer *handle) { - int res = -1; - - res = handle->holder->iface->timer_enable_continuous(handle->fd); - - return res; + return handle->holder->iface->timer_enable_continuous(handle->data); } int ast_timer_disable_continuous(const struct ast_timer *handle) { - int res = -1; - - res = handle->holder->iface->timer_disable_continuous(handle->fd); - - return res; + return handle->holder->iface->timer_disable_continuous(handle->data); } enum ast_timer_event ast_timer_get_event(const struct ast_timer *handle) { - enum ast_timer_event res = -1; - - res = handle->holder->iface->timer_get_event(handle->fd); - - return res; + return handle->holder->iface->timer_get_event(handle->data); } unsigned int ast_timer_get_max_rate(const struct ast_timer *handle) { - unsigned int res = 0; - - res = handle->holder->iface->timer_get_max_rate(handle->fd); - - return res; + return handle->holder->iface->timer_get_max_rate(handle->data); } const char *ast_timer_get_name(const struct ast_timer *handle) diff --git a/res/res_timing_dahdi.c b/res/res_timing_dahdi.c index 6298253b774695d583c75c975ff112e20468816e..7af71f14133ba3c9a0b6c0137b0eb8269e457ef8 100644 --- a/res/res_timing_dahdi.c +++ b/res/res_timing_dahdi.c @@ -45,14 +45,15 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$"); static void *timing_funcs_handle; -static int dahdi_timer_open(void); -static void dahdi_timer_close(int handle); -static int dahdi_timer_set_rate(int handle, unsigned int rate); -static int dahdi_timer_ack(int handle, unsigned int quantity); -static int dahdi_timer_enable_continuous(int handle); -static int dahdi_timer_disable_continuous(int handle); -static enum ast_timer_event dahdi_timer_get_event(int handle); -static unsigned int dahdi_timer_get_max_rate(int handle); +static void *dahdi_timer_open(void); +static void dahdi_timer_close(void *data); +static int dahdi_timer_set_rate(void *data, unsigned int rate); +static int dahdi_timer_ack(void *data, unsigned int quantity); +static int dahdi_timer_enable_continuous(void *data); +static int dahdi_timer_disable_continuous(void *data); +static enum ast_timer_event dahdi_timer_get_event(void *data); +static unsigned int dahdi_timer_get_max_rate(void *data); +static int dahdi_timer_fd(void *data); static struct ast_timing_interface dahdi_timing = { .name = "DAHDI", @@ -65,27 +66,48 @@ static struct ast_timing_interface dahdi_timing = { .timer_disable_continuous = dahdi_timer_disable_continuous, .timer_get_event = dahdi_timer_get_event, .timer_get_max_rate = dahdi_timer_get_max_rate, + .timer_fd = dahdi_timer_fd, }; -static int dahdi_timer_open(void) +struct dahdi_timer { + int fd; +}; + +static void *dahdi_timer_open(void) { - return open("/dev/dahdi/timer", O_RDWR); + struct dahdi_timer *timer; + + if (!(timer = ast_calloc(1, sizeof(*timer)))) { + return NULL; + } + + if ((timer->fd = open("/dev/dahdi/timer", O_RDWR)) < 0) { + ast_log(LOG_ERROR, "Failed to create dahdi timer: %s\n", strerror(errno)); + ast_free(timer); + return NULL; + } + + return timer; } -static void dahdi_timer_close(int handle) +static void dahdi_timer_close(void *data) { - close(handle); + struct dahdi_timer *timer = data; + + close(timer->fd); + ast_free(timer); } -static int dahdi_timer_set_rate(int handle, unsigned int rate) +static int dahdi_timer_set_rate(void *data, unsigned int rate) { + struct dahdi_timer *timer = data; int samples; /* DAHDI timers are configured using a number of samples, * based on an 8 kHz sample rate. */ samples = (unsigned int) roundf((8000.0 / ((float) rate))); - if (ioctl(handle, DAHDI_TIMERCONFIG, &samples)) { + if (ioctl(timer->fd, DAHDI_TIMERCONFIG, &samples)) { ast_log(LOG_ERROR, "Failed to configure DAHDI timing fd for %u sample timer ticks\n", samples); return -1; @@ -94,31 +116,36 @@ static int dahdi_timer_set_rate(int handle, unsigned int rate) return 0; } -static int dahdi_timer_ack(int handle, unsigned int quantity) +static int dahdi_timer_ack(void *data, unsigned int quantity) { - return ioctl(handle, DAHDI_TIMERACK, &quantity) ? -1 : 0; + struct dahdi_timer *timer = data; + + return ioctl(timer->fd, DAHDI_TIMERACK, &quantity) ? -1 : 0; } -static int dahdi_timer_enable_continuous(int handle) +static int dahdi_timer_enable_continuous(void *data) { + struct dahdi_timer *timer = data; int flags = 1; - return ioctl(handle, DAHDI_TIMERPING, &flags) ? -1 : 0; + return ioctl(timer->fd, DAHDI_TIMERPING, &flags) ? -1 : 0; } -static int dahdi_timer_disable_continuous(int handle) +static int dahdi_timer_disable_continuous(void *data) { + struct dahdi_timer *timer = data; int flags = -1; - return ioctl(handle, DAHDI_TIMERPONG, &flags) ? -1 : 0; + return ioctl(timer->fd, DAHDI_TIMERPONG, &flags) ? -1 : 0; } -static enum ast_timer_event dahdi_timer_get_event(int handle) +static enum ast_timer_event dahdi_timer_get_event(void *data) { + struct dahdi_timer *timer = data; int res; int event; - res = ioctl(handle, DAHDI_GETEVENT, &event); + res = ioctl(timer->fd, DAHDI_GETEVENT, &event); if (res) { event = DAHDI_EVENT_TIMER_EXPIRED; @@ -133,11 +160,18 @@ static enum ast_timer_event dahdi_timer_get_event(int handle) } } -static unsigned int dahdi_timer_get_max_rate(int handle) +static unsigned int dahdi_timer_get_max_rate(void *data) { return 1000; } +static int dahdi_timer_fd(void *data) +{ + struct dahdi_timer *timer = data; + + return timer->fd; +} + #define SEE_TIMING "For more information on Asterisk timing modules, including ways to potentially fix this problem, please see https://wiki.asterisk.org/wiki/display/AST/Timing+Interfaces\n" static int dahdi_test_timer(void) diff --git a/res/res_timing_kqueue.c b/res/res_timing_kqueue.c index b5bc01f3f22ec67fb573d9b375ae46173feeed7c..3c0bfcc735755ab07adf8202dfd9bcd483f98254 100644 --- a/res/res_timing_kqueue.c +++ b/res/res_timing_kqueue.c @@ -48,14 +48,15 @@ static void *timing_funcs_handle; -static int kqueue_timer_open(void); -static void kqueue_timer_close(int handle); -static int kqueue_timer_set_rate(int handle, unsigned int rate); -static int kqueue_timer_ack(int handle, unsigned int quantity); -static int kqueue_timer_enable_continuous(int handle); -static int kqueue_timer_disable_continuous(int handle); -static enum ast_timer_event kqueue_timer_get_event(int handle); -static unsigned int kqueue_timer_get_max_rate(int handle); +static void *kqueue_timer_open(void); +static void kqueue_timer_close(void *data); +static int kqueue_timer_set_rate(void *data, unsigned int rate); +static int kqueue_timer_ack(void *data, unsigned int quantity); +static int kqueue_timer_enable_continuous(void *data); +static int kqueue_timer_disable_continuous(void *data); +static enum ast_timer_event kqueue_timer_get_event(void *data); +static unsigned int kqueue_timer_get_max_rate(void *data); +static int kqueue_timer_fd(void *data); static struct ast_timing_interface kqueue_timing = { .name = "kqueue", @@ -68,10 +69,9 @@ static struct ast_timing_interface kqueue_timing = { .timer_disable_continuous = kqueue_timer_disable_continuous, .timer_get_event = kqueue_timer_get_event, .timer_get_max_rate = kqueue_timer_get_max_rate, + .timer_fd = kqueue_timer_fd, }; -static struct ao2_container *kqueue_timers; - struct kqueue_timer { int handle; uint64_t nsecs; @@ -79,73 +79,34 @@ struct kqueue_timer { unsigned int is_continuous:1; }; -static int kqueue_timer_hash(const void *obj, const int flags) -{ - const struct kqueue_timer *timer = obj; - - return timer->handle; -} - -static int kqueue_timer_cmp(void *obj, void *args, int flags) -{ - struct kqueue_timer *timer1 = obj, *timer2 = args; - return timer1->handle == timer2->handle ? CMP_MATCH | CMP_STOP : 0; -} - static void timer_destroy(void *obj) { struct kqueue_timer *timer = obj; close(timer->handle); } -#define lookup_timer(a) _lookup_timer(a, __FILE__, __LINE__, __PRETTY_FUNCTION__) -static struct kqueue_timer *_lookup_timer(int handle, const char *file, int line, const char *func) -{ - struct kqueue_timer *our_timer, find_helper = { - .handle = handle, - }; - - if (!(our_timer = ao2_find(kqueue_timers, &find_helper, OBJ_POINTER))) { - ast_log(__LOG_ERROR, file, line, func, "Couldn't find timer with handle %d\n", handle); - /* API says we set errno */ - errno = ESRCH; - return NULL; - } - return our_timer; -} - -static int kqueue_timer_open(void) +static void *kqueue_timer_open(void) { struct kqueue_timer *timer; - int handle; if (!(timer = ao2_alloc(sizeof(*timer), timer_destroy))) { ast_log(LOG_ERROR, "Could not allocate memory for kqueue_timer structure\n"); return -1; } - if ((handle = kqueue()) < 0) { + if ((timer->handle = kqueue()) < 0) { ast_log(LOG_ERROR, "Failed to create kqueue timer: %s\n", strerror(errno)); ao2_ref(timer, -1); return -1; } - timer->handle = handle; - ao2_link(kqueue_timers, timer); - /* Get rid of the reference from the allocation */ - ao2_ref(timer, -1); - return handle; + return timer; } -static void kqueue_timer_close(int handle) +static void kqueue_timer_close(void *data) { - struct kqueue_timer *our_timer; + struct kqueue_timer *timer = data; - if (!(our_timer = lookup_timer(handle))) { - return; - } - - ao2_unlink(kqueue_timers, our_timer); - ao2_ref(our_timer, -1); + ao2_ref(timer, -1); } static void kqueue_set_nsecs(struct kqueue_timer *our_timer, uint64_t nsecs) @@ -183,107 +144,90 @@ static void kqueue_set_nsecs(struct kqueue_timer *our_timer, uint64_t nsecs) #endif } -static int kqueue_timer_set_rate(int handle, unsigned int rate) +static int kqueue_timer_set_rate(void *data, unsigned int rate) { - struct kqueue_timer *our_timer; + struct kqueue_timer *timer = data; - if (!(our_timer = lookup_timer(handle))) { - return -1; - } - - kqueue_set_nsecs(our_timer, (our_timer->nsecs = rate ? (long) (1000000000 / rate) : 0L)); - ao2_ref(our_timer, -1); + kqueue_set_nsecs(timer, (timer->nsecs = rate ? (long) (1000000000 / rate) : 0L)); return 0; } -static int kqueue_timer_ack(int handle, unsigned int quantity) +static int kqueue_timer_ack(void *data, unsigned int quantity) { - struct kqueue_timer *our_timer; + struct kqueue_timer *timer = data; - if (!(our_timer = lookup_timer(handle))) { - return -1; - } - - if (our_timer->unacked < quantity) { + if (timer->unacked < quantity) { ast_debug(1, "Acking more events than have expired?!!\n"); - our_timer->unacked = 0; - ao2_ref(our_timer, -1); + timer->unacked = 0; return -1; } else { - our_timer->unacked -= quantity; + timer->unacked -= quantity; } - ao2_ref(our_timer, -1); return 0; } -static int kqueue_timer_enable_continuous(int handle) +static int kqueue_timer_enable_continuous(void *data) { - struct kqueue_timer *our_timer; + struct kqueue_timer *timer = data; - if (!(our_timer = lookup_timer(handle))) { - return -1; - } + kqueue_set_nsecs(timer, 1); + timer->is_continuous = 1; + timer->unacked = 0; - kqueue_set_nsecs(our_timer, 1); - our_timer->is_continuous = 1; - our_timer->unacked = 0; - ao2_ref(our_timer, -1); return 0; } -static int kqueue_timer_disable_continuous(int handle) +static int kqueue_timer_disable_continuous(void *data) { - struct kqueue_timer *our_timer; + struct kqueue_timer *timer = data; - if (!(our_timer = lookup_timer(handle))) { - return -1; - } + kqueue_set_nsecs(timer, timer->nsecs); + timer->is_continuous = 0; + timer->unacked = 0; - kqueue_set_nsecs(our_timer, our_timer->nsecs); - our_timer->is_continuous = 0; - our_timer->unacked = 0; - ao2_ref(our_timer, -1); return 0; } -static enum ast_timer_event kqueue_timer_get_event(int handle) +static enum ast_timer_event kqueue_timer_get_event(void *data) { + struct kqueue_timer *timer = data; enum ast_timer_event res = -1; - struct kqueue_timer *our_timer; struct timespec sixty_seconds = { 60, 0 }; struct kevent kev; - if (!(our_timer = lookup_timer(handle))) { - return -1; - } - /* If we have non-ACKed events, just return immediately */ - if (our_timer->unacked == 0) { - if (kevent(handle, NULL, 0, &kev, 1, &sixty_seconds) > 0) { - our_timer->unacked += kev.data; + if (timer->unacked == 0) { + if (kevent(timer->handle, NULL, 0, &kev, 1, &sixty_seconds) > 0) { + timer->unacked += kev.data; } } - if (our_timer->unacked > 0) { - res = our_timer->is_continuous ? AST_TIMING_EVENT_CONTINUOUS : AST_TIMING_EVENT_EXPIRED; + if (timer->unacked > 0) { + res = timer->is_continuous ? AST_TIMING_EVENT_CONTINUOUS : AST_TIMING_EVENT_EXPIRED; } - ao2_ref(our_timer, -1); return res; } -static unsigned int kqueue_timer_get_max_rate(int handle) +static unsigned int kqueue_timer_get_max_rate(void *data) { /* Actually, the max rate is 2^64-1 seconds, but that's not representable in a 32-bit integer. */ return UINT_MAX; } +static int kqueue_timer_fd(void *data) +{ + struct kqueue_timer *timer = data; + + return timer->handle; +} + #ifdef TEST_FRAMEWORK AST_TEST_DEFINE(test_kqueue_timing) { - int res = AST_TEST_PASS, handle, i; + int res = AST_TEST_PASS, i; uint64_t diff; struct pollfd pfd = { 0, POLLIN, 0 }; struct kqueue_timer *kt; @@ -300,14 +244,14 @@ AST_TEST_DEFINE(test_kqueue_timing) break; } - if (!(handle = kqueue_timer_open())) { + if (!(kt = kqueue_timer_open())) { ast_test_status_update(test, "Cannot open timer!\n"); return AST_TEST_FAIL; } do { - pfd.fd = handle; - if (kqueue_timer_set_rate(handle, 1000)) { + pfd.fd = ast_timer_fd(kt); + if (kqueue_timer_set_rate(kt, 1000)) { ast_test_status_update(test, "Cannot set timer rate to 1000/s\n"); res = AST_TEST_FAIL; break; @@ -322,12 +266,7 @@ AST_TEST_DEFINE(test_kqueue_timing) res = AST_TEST_FAIL; break; } - if (!(kt = lookup_timer(handle))) { - ast_test_status_update(test, "Could not find timer structure in container?!!\n"); - res = AST_TEST_FAIL; - break; - } - if (kqueue_timer_get_event(handle) <= 0) { + if (kqueue_timer_get_event(kt) <= 0) { ast_test_status_update(test, "No events generated after a poll returned successfully?!!\n"); res = AST_TEST_FAIL; break; @@ -339,7 +278,7 @@ AST_TEST_DEFINE(test_kqueue_timing) break; } #endif - kqueue_timer_enable_continuous(handle); + kqueue_timer_enable_continuous(kt); start = ast_tvnow(); for (i = 0; i < 100; i++) { if (ast_poll(&pfd, 1, 1000) < 1) { @@ -347,7 +286,7 @@ AST_TEST_DEFINE(test_kqueue_timing) res = AST_TEST_FAIL; break; } - if (kqueue_timer_get_event(handle) <= 0) { + if (kqueue_timer_get_event(kt) <= 0) { ast_test_status_update(test, "No events generated in continuous mode after 1 microsecond?!!\n"); res = AST_TEST_FAIL; break; @@ -362,7 +301,7 @@ AST_TEST_DEFINE(test_kqueue_timing) } */ } while (0); - kqueue_timer_close(handle); + kqueue_timer_close(kt); return res; } #endif @@ -379,12 +318,7 @@ AST_TEST_DEFINE(test_kqueue_timing) */ static int load_module(void) { - if (!(kqueue_timers = ao2_container_alloc(563, kqueue_timer_hash, kqueue_timer_cmp))) { - return AST_MODULE_LOAD_DECLINE; - } - if (!(timing_funcs_handle = ast_register_timing_interface(&kqueue_timing))) { - ao2_ref(kqueue_timers, -1); return AST_MODULE_LOAD_DECLINE; } @@ -394,15 +328,9 @@ static int load_module(void) static int unload_module(void) { - int res; - AST_TEST_UNREGISTER(test_kqueue_timing); - if (!(res = ast_unregister_timing_interface(timing_funcs_handle))) { - ao2_ref(kqueue_timers, -1); - kqueue_timers = NULL; - } - return res; + return ast_unregister_timing_interface(timing_funcs_handle); } AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "KQueue Timing Interface", diff --git a/res/res_timing_pthread.c b/res/res_timing_pthread.c index 55ed6acfb2a3b15a7f9626cf21bb1e18ce98ea8e..9ef8c5d6b5e9eae954168f1475dd1c03d3b4c2bc 100644 --- a/res/res_timing_pthread.c +++ b/res/res_timing_pthread.c @@ -45,14 +45,15 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$"); static void *timing_funcs_handle; -static int pthread_timer_open(void); -static void pthread_timer_close(int handle); -static int pthread_timer_set_rate(int handle, unsigned int rate); -static int pthread_timer_ack(int handle, unsigned int quantity); -static int pthread_timer_enable_continuous(int handle); -static int pthread_timer_disable_continuous(int handle); -static enum ast_timer_event pthread_timer_get_event(int handle); -static unsigned int pthread_timer_get_max_rate(int handle); +static void *pthread_timer_open(void); +static void pthread_timer_close(void *data); +static int pthread_timer_set_rate(void *data, unsigned int rate); +static int pthread_timer_ack(void *data, unsigned int quantity); +static int pthread_timer_enable_continuous(void *data); +static int pthread_timer_disable_continuous(void *data); +static enum ast_timer_event pthread_timer_get_event(void *data); +static unsigned int pthread_timer_get_max_rate(void *data); +static int pthread_timer_fd(void *data); static struct ast_timing_interface pthread_timing = { .name = "pthread", @@ -65,6 +66,7 @@ static struct ast_timing_interface pthread_timing = { .timer_disable_continuous = pthread_timer_disable_continuous, .timer_get_event = pthread_timer_get_event, .timer_get_max_rate = pthread_timer_get_max_rate, + .timer_fd = pthread_timer_fd, }; /* 1 tick / 10 ms */ @@ -97,7 +99,6 @@ struct pthread_timer { }; static void pthread_timer_destructor(void *obj); -static struct pthread_timer *find_timer(int handle, int unlinkobj); static void signal_pipe(struct pthread_timer *timer); static void unsignal_pipe(struct pthread_timer *timer); static void ack_ticks(struct pthread_timer *timer, unsigned int num); @@ -112,15 +113,14 @@ static struct { unsigned int stop:1; } timing_thread; -static int pthread_timer_open(void) +static void *pthread_timer_open(void) { struct pthread_timer *timer; - int fd; int i; if (!(timer = ao2_alloc(sizeof(*timer), pthread_timer_destructor))) { errno = ENOMEM; - return -1; + return NULL; } timer->pipe[PIPE_READ] = timer->pipe[PIPE_WRITE] = -1; @@ -128,7 +128,7 @@ static int pthread_timer_open(void) if (pipe(timer->pipe)) { ao2_ref(timer, -1); - return -1; + return NULL; } for (i = 0; i < ARRAY_LEN(timer->pipe); ++i) { @@ -146,32 +146,19 @@ static int pthread_timer_open(void) ao2_link(pthread_timers, timer); ao2_unlock(pthread_timers); - fd = timer->pipe[PIPE_READ]; - - ao2_ref(timer, -1); - - return fd; + return timer; } -static void pthread_timer_close(int handle) +static void pthread_timer_close(void *data) { - struct pthread_timer *timer; - - if (!(timer = find_timer(handle, 1))) { - return; - } + struct pthread_timer *timer = data; ao2_ref(timer, -1); } -static int pthread_timer_set_rate(int handle, unsigned int rate) +static int pthread_timer_set_rate(void *data, unsigned int rate) { - struct pthread_timer *timer; - - if (!(timer = find_timer(handle, 0))) { - errno = EINVAL; - return -1; - } + struct pthread_timer *timer = data; if (rate > MAX_RATE) { ast_log(LOG_ERROR, "res_timing_pthread only supports timers at a " @@ -195,38 +182,25 @@ static int pthread_timer_set_rate(int handle, unsigned int rate) ao2_unlock(timer); - ao2_ref(timer, -1); - return 0; } -static int pthread_timer_ack(int handle, unsigned int quantity) +static int pthread_timer_ack(void *data, unsigned int quantity) { - struct pthread_timer *timer; + struct pthread_timer *timer = data; ast_assert(quantity > 0); - if (!(timer = find_timer(handle, 0))) { - return -1; - } - ao2_lock(timer); ack_ticks(timer, quantity); ao2_unlock(timer); - ao2_ref(timer, -1); - return 0; } -static int pthread_timer_enable_continuous(int handle) +static int pthread_timer_enable_continuous(void *data) { - struct pthread_timer *timer; - - if (!(timer = find_timer(handle, 0))) { - errno = EINVAL; - return -1; - } + struct pthread_timer *timer = data; ao2_lock(timer); if (!timer->continuous) { @@ -235,19 +209,12 @@ static int pthread_timer_enable_continuous(int handle) } ao2_unlock(timer); - ao2_ref(timer, -1); - return 0; } -static int pthread_timer_disable_continuous(int handle) +static int pthread_timer_disable_continuous(void *data) { - struct pthread_timer *timer; - - if (!(timer = find_timer(handle, 0))) { - errno = EINVAL; - return -1; - } + struct pthread_timer *timer = data; ao2_lock(timer); if (timer->continuous) { @@ -256,54 +223,33 @@ static int pthread_timer_disable_continuous(int handle) } ao2_unlock(timer); - ao2_ref(timer, -1); - return 0; } -static enum ast_timer_event pthread_timer_get_event(int handle) +static enum ast_timer_event pthread_timer_get_event(void *data) { - struct pthread_timer *timer; + struct pthread_timer *timer = data; enum ast_timer_event res = AST_TIMING_EVENT_EXPIRED; - if (!(timer = find_timer(handle, 0))) { - return res; - } - ao2_lock(timer); if (timer->continuous) { res = AST_TIMING_EVENT_CONTINUOUS; } ao2_unlock(timer); - ao2_ref(timer, -1); - return res; } -static unsigned int pthread_timer_get_max_rate(int handle) +static unsigned int pthread_timer_get_max_rate(void *data) { return MAX_RATE; } -static struct pthread_timer *find_timer(int handle, int unlinkobj) +static int pthread_timer_fd(void *data) { - struct pthread_timer *timer; - struct pthread_timer tmp_timer; - int flags = OBJ_POINTER; - - tmp_timer.pipe[PIPE_READ] = handle; + struct pthread_timer *timer = data; - if (unlinkobj) { - flags |= OBJ_UNLINK; - } - - if (!(timer = ao2_find(pthread_timers, &tmp_timer, flags))) { - ast_assert(timer != NULL); - return NULL; - } - - return timer; + return timer->pipe[PIPE_READ]; } static void pthread_timer_destructor(void *obj) diff --git a/res/res_timing_timerfd.c b/res/res_timing_timerfd.c index 5c96dd6620b610ef9ef1a9cdb9f72768a14e44aa..07292a6b2fada1114a276357321bbb4b984fb68c 100644 --- a/res/res_timing_timerfd.c +++ b/res/res_timing_timerfd.c @@ -41,14 +41,15 @@ static void *timing_funcs_handle; -static int timerfd_timer_open(void); -static void timerfd_timer_close(int handle); -static int timerfd_timer_set_rate(int handle, unsigned int rate); -static int timerfd_timer_ack(int handle, unsigned int quantity); -static int timerfd_timer_enable_continuous(int handle); -static int timerfd_timer_disable_continuous(int handle); -static enum ast_timer_event timerfd_timer_get_event(int handle); -static unsigned int timerfd_timer_get_max_rate(int handle); +static void *timerfd_timer_open(void); +static void timerfd_timer_close(void *data); +static int timerfd_timer_set_rate(void *data, unsigned int rate); +static int timerfd_timer_ack(void *data, unsigned int quantity); +static int timerfd_timer_enable_continuous(void *data); +static int timerfd_timer_disable_continuous(void *data); +static enum ast_timer_event timerfd_timer_get_event(void *data); +static unsigned int timerfd_timer_get_max_rate(void *data); +static int timerfd_timer_fd(void *data); static struct ast_timing_interface timerfd_timing = { .name = "timerfd", @@ -61,152 +62,93 @@ static struct ast_timing_interface timerfd_timing = { .timer_disable_continuous = timerfd_timer_disable_continuous, .timer_get_event = timerfd_timer_get_event, .timer_get_max_rate = timerfd_timer_get_max_rate, + .timer_fd = timerfd_timer_fd, }; -static struct ao2_container *timerfd_timers; - -#define TIMERFD_TIMER_BUCKETS 563 #define TIMERFD_MAX_RATE 1000 struct timerfd_timer { - int handle; + int fd; struct itimerspec saved_timer; unsigned int is_continuous:1; }; -static int timerfd_timer_hash(const void *obj, const int flags) -{ - const struct timerfd_timer *timer = obj; - - return timer->handle; -} - -static int timerfd_timer_cmp(void *obj, void *args, int flags) -{ - struct timerfd_timer *timer1 = obj, *timer2 = args; - return timer1->handle == timer2->handle ? CMP_MATCH | CMP_STOP : 0; -} - static void timer_destroy(void *obj) { struct timerfd_timer *timer = obj; - close(timer->handle); - timer->handle = -1; + + close(timer->fd); } -static int timerfd_timer_open(void) +static void *timerfd_timer_open(void) { struct timerfd_timer *timer; - int handle; if (!(timer = ao2_alloc(sizeof(*timer), timer_destroy))) { ast_log(LOG_ERROR, "Could not allocate memory for timerfd_timer structure\n"); - return -1; + return NULL; } - if ((handle = timerfd_create(CLOCK_MONOTONIC, 0)) < 0) { + if ((timer->fd = timerfd_create(CLOCK_MONOTONIC, 0)) < 0) { ast_log(LOG_ERROR, "Failed to create timerfd timer: %s\n", strerror(errno)); ao2_ref(timer, -1); - return -1; + return NULL; } - timer->handle = handle; - ao2_link(timerfd_timers, timer); - /* Get rid of the reference from the allocation */ - ao2_ref(timer, -1); - return handle; + return timer; } -static void timerfd_timer_close(int handle) +static void timerfd_timer_close(void *data) { - struct timerfd_timer *our_timer, find_helper = { - .handle = handle, - }; - - if (handle == -1) { - ast_log(LOG_ERROR, "Attempting to close timerfd handle -1"); - return; - } - - if (!(our_timer = ao2_find(timerfd_timers, &find_helper, OBJ_POINTER))) { - ast_log(LOG_ERROR, "Couldn't find timer with handle %d\n", handle); - return; - } - - ao2_unlink(timerfd_timers, our_timer); - ao2_ref(our_timer, -1); + ao2_ref(data, -1); } -static int timerfd_timer_set_rate(int handle, unsigned int rate) +static int timerfd_timer_set_rate(void *data, unsigned int rate) { - struct timerfd_timer *our_timer, find_helper = { - .handle = handle, - }; + struct timerfd_timer *timer = data; int res = 0; - if (handle == -1) { - ast_log(LOG_ERROR, "Attempting to set rate on timerfd handle -1"); - return -1; - } + ao2_lock(timer); - if (!(our_timer = ao2_find(timerfd_timers, &find_helper, OBJ_POINTER))) { - ast_log(LOG_ERROR, "Couldn't find timer with handle %d\n", handle); - return -1; - } - ao2_lock(our_timer); - - our_timer->saved_timer.it_value.tv_sec = 0; - our_timer->saved_timer.it_value.tv_nsec = rate ? (long) (1000000000 / rate) : 0L; - our_timer->saved_timer.it_interval.tv_sec = our_timer->saved_timer.it_value.tv_sec; - our_timer->saved_timer.it_interval.tv_nsec = our_timer->saved_timer.it_value.tv_nsec; + timer->saved_timer.it_value.tv_sec = 0; + timer->saved_timer.it_value.tv_nsec = rate ? (long) (1000000000 / rate) : 0L; + timer->saved_timer.it_interval.tv_sec = timer->saved_timer.it_value.tv_sec; + timer->saved_timer.it_interval.tv_nsec = timer->saved_timer.it_value.tv_nsec; - if (!our_timer->is_continuous) { - res = timerfd_settime(handle, 0, &our_timer->saved_timer, NULL); + if (!timer->is_continuous) { + res = timerfd_settime(timer->fd, 0, &timer->saved_timer, NULL); } - ao2_unlock(our_timer); - ao2_ref(our_timer, -1); + ao2_unlock(timer); return res; } -static int timerfd_timer_ack(int handle, unsigned int quantity) +static int timerfd_timer_ack(void *data, unsigned int quantity) { + struct timerfd_timer *timer = data; uint64_t expirations; int read_result = 0; int res = 0; - struct timerfd_timer *our_timer, find_helper = { - .handle = handle, - }; - if (handle == -1) { - ast_log(LOG_ERROR, "Attempting to ack timerfd handle -1"); - return -1; - } - - if (!(our_timer = ao2_find(timerfd_timers, &find_helper, OBJ_POINTER))) { - ast_log(LOG_ERROR, "Couldn't find a timer with handle %d\n", handle); - return -1; - } - - ao2_lock(our_timer); + ao2_lock(timer); do { struct itimerspec timer_status; - if (timerfd_gettime(handle, &timer_status)) { - ast_log(LOG_ERROR, "Call to timerfd_gettime() using handle %d error: %s\n", handle, strerror(errno)); + if (timerfd_gettime(timer->fd, &timer_status)) { + ast_log(LOG_ERROR, "Call to timerfd_gettime() using handle %d error: %s\n", timer->fd, strerror(errno)); expirations = 0; res = -1; break; } if (timer_status.it_value.tv_sec == 0 && timer_status.it_value.tv_nsec == 0) { - ast_debug(1, "Avoiding read on disarmed timerfd %d\n", handle); + ast_debug(1, "Avoiding read on disarmed timerfd %d\n", timer->fd); expirations = 0; break; } - read_result = read(handle, &expirations, sizeof(expirations)); + read_result = read(timer->fd, &expirations, sizeof(expirations)); if (read_result == -1) { if (errno == EINTR || errno == EAGAIN) { continue; @@ -218,121 +160,93 @@ static int timerfd_timer_ack(int handle, unsigned int quantity) } } while (read_result != sizeof(expirations)); - ao2_unlock(our_timer); - ao2_ref(our_timer, -1); + ao2_unlock(timer); if (expirations != quantity) { ast_debug(2, "Expected to acknowledge %u ticks but got %llu instead\n", quantity, (unsigned long long) expirations); } + return res; } -static int timerfd_timer_enable_continuous(int handle) +static int timerfd_timer_enable_continuous(void *data) { + struct timerfd_timer *timer = data; int res; - struct itimerspec continuous_timer = { + static const struct itimerspec continuous_timer = { .it_value.tv_nsec = 1L, }; - struct timerfd_timer *our_timer, find_helper = { - .handle = handle, - }; - if (handle == -1) { - ast_log(LOG_ERROR, "Attempting to enable timerfd handle -1"); - return -1; - } - - if (!(our_timer = ao2_find(timerfd_timers, &find_helper, OBJ_POINTER))) { - ast_log(LOG_ERROR, "Couldn't find timer with handle %d\n", handle); - return -1; - } - ao2_lock(our_timer); + ao2_lock(timer); - if (our_timer->is_continuous) { + if (timer->is_continuous) { /*It's already in continous mode, no need to do * anything further */ - ao2_unlock(our_timer); - ao2_ref(our_timer, -1); + ao2_unlock(timer); return 0; } - res = timerfd_settime(handle, 0, &continuous_timer, &our_timer->saved_timer); - our_timer->is_continuous = 1; - ao2_unlock(our_timer); - ao2_ref(our_timer, -1); + res = timerfd_settime(timer->fd, 0, &continuous_timer, &timer->saved_timer); + timer->is_continuous = 1; + ao2_unlock(timer); + return res; } -static int timerfd_timer_disable_continuous(int handle) +static int timerfd_timer_disable_continuous(void *data) { + struct timerfd_timer *timer = data; int res; - struct timerfd_timer *our_timer, find_helper = { - .handle = handle, - }; - if (handle == -1) { - ast_log(LOG_ERROR, "Attempting to disable timerfd handle -1"); - return -1; - } + ao2_lock(timer); - if (!(our_timer = ao2_find(timerfd_timers, &find_helper, OBJ_POINTER))) { - ast_log(LOG_ERROR, "Couldn't find timer with handle %d\n", handle); - return -1; - } - ao2_lock(our_timer); - - if (!our_timer->is_continuous) { + if (!timer->is_continuous) { /* No reason to do anything if we're not * in continuous mode */ - ao2_unlock(our_timer); - ao2_ref(our_timer, -1); + ao2_unlock(timer); return 0; } - res = timerfd_settime(handle, 0, &our_timer->saved_timer, NULL); - our_timer->is_continuous = 0; - memset(&our_timer->saved_timer, 0, sizeof(our_timer->saved_timer)); - ao2_unlock(our_timer); - ao2_ref(our_timer, -1); + res = timerfd_settime(timer->fd, 0, &timer->saved_timer, NULL); + timer->is_continuous = 0; + memset(&timer->saved_timer, 0, sizeof(timer->saved_timer)); + ao2_unlock(timer); + return res; } -static enum ast_timer_event timerfd_timer_get_event(int handle) +static enum ast_timer_event timerfd_timer_get_event(void *data) { + struct timerfd_timer *timer = data; enum ast_timer_event res; - struct timerfd_timer *our_timer, find_helper = { - .handle = handle, - }; - if (handle == -1) { - ast_log(LOG_ERROR, "Attempting to get event from timerfd handle -1"); - return -1; - } - - if (!(our_timer = ao2_find(timerfd_timers, &find_helper, OBJ_POINTER))) { - ast_log(LOG_ERROR, "Couldn't find timer with handle %d\n", handle); - return -1; - } - ao2_lock(our_timer); + ao2_lock(timer); - if (our_timer->is_continuous) { + if (timer->is_continuous) { res = AST_TIMING_EVENT_CONTINUOUS; } else { res = AST_TIMING_EVENT_EXPIRED; } - ao2_unlock(our_timer); - ao2_ref(our_timer, -1); + ao2_unlock(timer); + return res; } -static unsigned int timerfd_timer_get_max_rate(int handle) +static unsigned int timerfd_timer_get_max_rate(void *data) { return TIMERFD_MAX_RATE; } +static int timerfd_timer_fd(void *data) +{ + struct timerfd_timer *timer = data; + + return timer->fd; +} + static int load_module(void) { int fd; @@ -345,12 +259,7 @@ static int load_module(void) close(fd); - if (!(timerfd_timers = ao2_container_alloc(TIMERFD_TIMER_BUCKETS, timerfd_timer_hash, timerfd_timer_cmp))) { - return AST_MODULE_LOAD_DECLINE; - } - if (!(timing_funcs_handle = ast_register_timing_interface(&timerfd_timing))) { - ao2_ref(timerfd_timers, -1); return AST_MODULE_LOAD_DECLINE; } @@ -359,14 +268,7 @@ static int load_module(void) static int unload_module(void) { - int res; - - if (!(res = ast_unregister_timing_interface(timing_funcs_handle))) { - ao2_ref(timerfd_timers, -1); - timerfd_timers = NULL; - } - - return res; + return ast_unregister_timing_interface(timing_funcs_handle); } AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Timerfd Timing Interface",