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-rw-r--r--src/locks.c319
1 files changed, 0 insertions, 319 deletions
diff --git a/src/locks.c b/src/locks.c
deleted file mode 100644
index c5b42c921..000000000
--- a/src/locks.c
+++ /dev/null
@@ -1,319 +0,0 @@
-#include "common.h"
-
-// ----------------------------------------------------------------------------
-// automatic thread cancelability management, based on locks
-
-static __thread int netdata_thread_first_cancelability = 0;
-static __thread int netdata_thread_lock_cancelability = 0;
-
-inline void netdata_thread_disable_cancelability(void) {
- int old;
- int ret = pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &old);
- if(ret != 0)
- error("THREAD_CANCELABILITY: pthread_setcancelstate() on thread %s returned error %d", netdata_thread_tag(), ret);
- else {
- if(!netdata_thread_lock_cancelability)
- netdata_thread_first_cancelability = old;
-
- netdata_thread_lock_cancelability++;
- }
-}
-
-inline void netdata_thread_enable_cancelability(void) {
- if(netdata_thread_lock_cancelability < 1) {
- error("THREAD_CANCELABILITY: netdata_thread_enable_cancelability(): invalid thread cancelability count %d on thread %s - results will be undefined - please report this!", netdata_thread_lock_cancelability, netdata_thread_tag());
- }
- else if(netdata_thread_lock_cancelability == 1) {
- int old = 1;
- int ret = pthread_setcancelstate(netdata_thread_first_cancelability, &old);
- if(ret != 0)
- error("THREAD_CANCELABILITY: pthread_setcancelstate() on thread %s returned error %d", netdata_thread_tag(), ret);
- else {
- if(old != PTHREAD_CANCEL_DISABLE)
- error("THREAD_CANCELABILITY: netdata_thread_enable_cancelability(): old thread cancelability on thread %s was changed, expected DISABLED (%d), found %s (%d) - please report this!", netdata_thread_tag(), PTHREAD_CANCEL_DISABLE, (old == PTHREAD_CANCEL_ENABLE)?"ENABLED":"UNKNOWN", old);
- }
-
- netdata_thread_lock_cancelability = 0;
- }
- else
- netdata_thread_lock_cancelability--;
-}
-
-// ----------------------------------------------------------------------------
-// mutex
-
-int __netdata_mutex_init(netdata_mutex_t *mutex) {
- int ret = pthread_mutex_init(mutex, NULL);
- if(unlikely(ret != 0))
- error("MUTEX_LOCK: failed to initialize (code %d).", ret);
- return ret;
-}
-
-int __netdata_mutex_lock(netdata_mutex_t *mutex) {
- netdata_thread_disable_cancelability();
-
- int ret = pthread_mutex_lock(mutex);
- if(unlikely(ret != 0)) {
- netdata_thread_enable_cancelability();
- error("MUTEX_LOCK: failed to get lock (code %d)", ret);
- }
- return ret;
-}
-
-int __netdata_mutex_trylock(netdata_mutex_t *mutex) {
- netdata_thread_disable_cancelability();
-
- int ret = pthread_mutex_trylock(mutex);
- if(ret != 0)
- netdata_thread_enable_cancelability();
-
- return ret;
-}
-
-int __netdata_mutex_unlock(netdata_mutex_t *mutex) {
- int ret = pthread_mutex_unlock(mutex);
- if(unlikely(ret != 0))
- error("MUTEX_LOCK: failed to unlock (code %d).", ret);
- else
- netdata_thread_enable_cancelability();
-
- return ret;
-}
-
-int netdata_mutex_init_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_init(0x%p) from %lu@%s, %s()", mutex, line, file, function);
- }
-
- int ret = __netdata_mutex_init(mutex);
-
- debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_init(0x%p) = %d in %llu usec, from %lu@%s, %s()", mutex, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
-
-int netdata_mutex_lock_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_lock(0x%p) from %lu@%s, %s()", mutex, line, file, function);
- }
-
- int ret = __netdata_mutex_lock(mutex);
-
- debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_lock(0x%p) = %d in %llu usec, from %lu@%s, %s()", mutex, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
-
-int netdata_mutex_trylock_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_trylock(0x%p) from %lu@%s, %s()", mutex, line, file, function);
- }
-
- int ret = __netdata_mutex_trylock(mutex);
-
- debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_trylock(0x%p) = %d in %llu usec, from %lu@%s, %s()", mutex, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
-
-int netdata_mutex_unlock_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_unlock(0x%p) from %lu@%s, %s()", mutex, line, file, function);
- }
-
- int ret = __netdata_mutex_unlock(mutex);
-
- debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_unlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", mutex, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
-
-
-// ----------------------------------------------------------------------------
-// r/w lock
-
-int __netdata_rwlock_destroy(netdata_rwlock_t *rwlock) {
- int ret = pthread_rwlock_destroy(rwlock);
- if(unlikely(ret != 0))
- error("RW_LOCK: failed to destroy lock (code %d)", ret);
- return ret;
-}
-
-int __netdata_rwlock_init(netdata_rwlock_t *rwlock) {
- int ret = pthread_rwlock_init(rwlock, NULL);
- if(unlikely(ret != 0))
- error("RW_LOCK: failed to initialize lock (code %d)", ret);
- return ret;
-}
-
-int __netdata_rwlock_rdlock(netdata_rwlock_t *rwlock) {
- netdata_thread_disable_cancelability();
-
- int ret = pthread_rwlock_rdlock(rwlock);
- if(unlikely(ret != 0)) {
- netdata_thread_enable_cancelability();
- error("RW_LOCK: failed to obtain read lock (code %d)", ret);
- }
-
- return ret;
-}
-
-int __netdata_rwlock_wrlock(netdata_rwlock_t *rwlock) {
- netdata_thread_disable_cancelability();
-
- int ret = pthread_rwlock_wrlock(rwlock);
- if(unlikely(ret != 0)) {
- error("RW_LOCK: failed to obtain write lock (code %d)", ret);
- netdata_thread_enable_cancelability();
- }
-
- return ret;
-}
-
-int __netdata_rwlock_unlock(netdata_rwlock_t *rwlock) {
- int ret = pthread_rwlock_unlock(rwlock);
- if(unlikely(ret != 0))
- error("RW_LOCK: failed to release lock (code %d)", ret);
- else
- netdata_thread_enable_cancelability();
-
- return ret;
-}
-
-int __netdata_rwlock_tryrdlock(netdata_rwlock_t *rwlock) {
- netdata_thread_disable_cancelability();
-
- int ret = pthread_rwlock_tryrdlock(rwlock);
- if(ret != 0)
- netdata_thread_enable_cancelability();
-
- return ret;
-}
-
-int __netdata_rwlock_trywrlock(netdata_rwlock_t *rwlock) {
- netdata_thread_disable_cancelability();
-
- int ret = pthread_rwlock_trywrlock(rwlock);
- if(ret != 0)
- netdata_thread_enable_cancelability();
-
- return ret;
-}
-
-
-int netdata_rwlock_destroy_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_destroy(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
- }
-
- int ret = __netdata_rwlock_destroy(rwlock);
-
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_destroy(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
-
-int netdata_rwlock_init_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_init(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
- }
-
- int ret = __netdata_rwlock_init(rwlock);
-
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_init(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
-
-int netdata_rwlock_rdlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_rdlock(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
- }
-
- int ret = __netdata_rwlock_rdlock(rwlock);
-
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_rdlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
-
-int netdata_rwlock_wrlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_wrlock(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
- }
-
- int ret = __netdata_rwlock_wrlock(rwlock);
-
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_wrlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
-
-int netdata_rwlock_unlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_unlock(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
- }
-
- int ret = __netdata_rwlock_unlock(rwlock);
-
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_unlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
-
-int netdata_rwlock_tryrdlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_tryrdlock(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
- }
-
- int ret = __netdata_rwlock_tryrdlock(rwlock);
-
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_tryrdlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
-
-int netdata_rwlock_trywrlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
- usec_t start = 0;
-
- if(unlikely(debug_flags & D_LOCKS)) {
- start = now_boottime_usec();
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_trywrlock(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
- }
-
- int ret = __netdata_rwlock_trywrlock(rwlock);
-
- debug(D_LOCKS, "RW_LOCK: netdata_rwlock_trywrlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);
-
- return ret;
-}
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