New upstream version 1.10.0+dfsgupstream/1.10.0+dfsg

1 files changed, 35 insertions, 258 deletions

diff --git a/src/locks.h b/src/locks.h
index 76533f636..36962fef2 100644
--- a/src/locks.h
+++ b/src/locks.h
@@ -1,276 +1,48 @@
 #ifndef NETDATA_LOCKS_H
 #define NETDATA_LOCKS_H
 
-// ----------------------------------------------------------------------------
-// mutex
-
 typedef pthread_mutex_t netdata_mutex_t;
-
 #define NETDATA_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
 
-static inline 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;
-}
-
-static inline int __netdata_mutex_lock(netdata_mutex_t *mutex) {
-    int ret = pthread_mutex_lock(mutex);
-    if(unlikely(ret != 0))
-        error("MUTEX_LOCK: failed to get lock (code %d)", ret);
-    return ret;
-}
-
-static inline int __netdata_mutex_trylock(netdata_mutex_t *mutex) {
-    int ret = pthread_mutex_trylock(mutex);
-    return ret;
-}
+typedef pthread_rwlock_t netdata_rwlock_t;
+#define NETDATA_RWLOCK_INITIALIZER PTHREAD_RWLOCK_INITIALIZER
 
-static inline 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);
-    return ret;
-}
+extern int __netdata_mutex_init(netdata_mutex_t *mutex);
+extern int __netdata_mutex_lock(netdata_mutex_t *mutex);
+extern int __netdata_mutex_trylock(netdata_mutex_t *mutex);
+extern int __netdata_mutex_unlock(netdata_mutex_t *mutex);
+
+extern int __netdata_rwlock_destroy(netdata_rwlock_t *rwlock);
+extern int __netdata_rwlock_init(netdata_rwlock_t *rwlock);
+extern int __netdata_rwlock_rdlock(netdata_rwlock_t *rwlock);
+extern int __netdata_rwlock_wrlock(netdata_rwlock_t *rwlock);
+extern int __netdata_rwlock_unlock(netdata_rwlock_t *rwlock);
+extern int __netdata_rwlock_tryrdlock(netdata_rwlock_t *rwlock);
+extern int __netdata_rwlock_trywrlock(netdata_rwlock_t *rwlock);
+
+extern int netdata_mutex_init_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex);
+extern int netdata_mutex_lock_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex);
+extern int netdata_mutex_trylock_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex);
+extern int netdata_mutex_unlock_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex);
+
+extern int netdata_rwlock_destroy_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock);
+extern int netdata_rwlock_init_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock);
+extern int netdata_rwlock_rdlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock);
+extern int netdata_rwlock_wrlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock);
+extern int netdata_rwlock_unlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock);
+extern int netdata_rwlock_tryrdlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock);
+extern int netdata_rwlock_trywrlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock);
+
+extern void netdata_thread_disable_cancelability(void);
+extern void netdata_thread_enable_cancelability(void);
 
 #ifdef NETDATA_INTERNAL_CHECKS
 
-static inline 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;
-}
-
-static inline 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;
-}
-
-static inline 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;
-}
-
-static inline 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;
-}
-
 #define netdata_mutex_init(mutex)    netdata_mutex_init_debug(__FILE__, __FUNCTION__, __LINE__, mutex)
 #define netdata_mutex_lock(mutex)    netdata_mutex_lock_debug(__FILE__, __FUNCTION__, __LINE__, mutex)
 #define netdata_mutex_trylock(mutex) netdata_mutex_trylock_debug(__FILE__, __FUNCTION__, __LINE__, mutex)
 #define netdata_mutex_unlock(mutex)  netdata_mutex_unlock_debug(__FILE__, __FUNCTION__, __LINE__, mutex)
 
-#else // !NETDATA_INTERNAL_CHECKS
-
-#define netdata_mutex_init(mutex)    __netdata_mutex_init(mutex)
-#define netdata_mutex_lock(mutex)    __netdata_mutex_lock(mutex)
-#define netdata_mutex_trylock(mutex) __netdata_mutex_trylock(mutex)
-#define netdata_mutex_unlock(mutex)  __netdata_mutex_unlock(mutex)
-
-#endif // NETDATA_INTERNAL_CHECKS
-
-
-// ----------------------------------------------------------------------------
-// r/w lock
-
-typedef pthread_rwlock_t netdata_rwlock_t;
-
-#define NETDATA_RWLOCK_INITIALIZER PTHREAD_RWLOCK_INITIALIZER
-
-static inline 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;
-}
-
-static inline 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;
-}
-
-static inline int __netdata_rwlock_rdlock(netdata_rwlock_t *rwlock) {
-    int ret = pthread_rwlock_rdlock(rwlock);
-    if(unlikely(ret != 0))
-        error("RW_LOCK: failed to obtain read lock (code %d)", ret);
-    return ret;
-}
-
-static inline int __netdata_rwlock_wrlock(netdata_rwlock_t *rwlock) {
-    int ret = pthread_rwlock_wrlock(rwlock);
-    if(unlikely(ret != 0))
-        error("RW_LOCK: failed to obtain write lock (code %d)", ret);
-    return ret;
-}
-
-static inline 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);
-    return ret;
-}
-
-static inline int __netdata_rwlock_tryrdlock(netdata_rwlock_t *rwlock) {
-    int ret = pthread_rwlock_tryrdlock(rwlock);
-    return ret;
-}
-
-static inline int __netdata_rwlock_trywrlock(netdata_rwlock_t *rwlock) {
-    int ret = pthread_rwlock_trywrlock(rwlock);
-    return ret;
-}
-
-
-#ifdef NETDATA_INTERNAL_CHECKS
-
-static inline 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;
-}
-
-static inline 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;
-}
-
-static inline 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;
-}
-
-static inline 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;
-}
-
-static inline 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;
-}
-
-static inline 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;
-}
-
-static inline 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;
-}
-
 #define netdata_rwlock_destroy(rwlock)   netdata_rwlock_destroy_debug(__FILE__, __FUNCTION__, __LINE__, rwlock)
 #define netdata_rwlock_init(rwlock)      netdata_rwlock_init_debug(__FILE__, __FUNCTION__, __LINE__, rwlock)
 #define netdata_rwlock_rdlock(rwlock)    netdata_rwlock_rdlock_debug(__FILE__, __FUNCTION__, __LINE__, rwlock)
@@ -281,6 +53,11 @@ static inline int netdata_rwlock_trywrlock_debug( const char *file, const char *
 
 #else // !NETDATA_INTERNAL_CHECKS
 
+#define netdata_mutex_init(mutex)    __netdata_mutex_init(mutex)
+#define netdata_mutex_lock(mutex)    __netdata_mutex_lock(mutex)
+#define netdata_mutex_trylock(mutex) __netdata_mutex_trylock(mutex)
+#define netdata_mutex_unlock(mutex)  __netdata_mutex_unlock(mutex)
+
 #define netdata_rwlock_destroy(rwlock)    __netdata_rwlock_destroy(rwlock)
 #define netdata_rwlock_init(rwlock)       __netdata_rwlock_init(rwlock)
 #define netdata_rwlock_rdlock(rwlock)     __netdata_rwlock_rdlock(rwlock)