diff options
Diffstat (limited to '')
| -rw-r--r-- | libnetdata/locks/locks.h | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/libnetdata/locks/locks.h b/libnetdata/locks/locks.h index 4d2d1655..89b110d5 100644 --- a/libnetdata/locks/locks.h +++ b/libnetdata/locks/locks.h @@ -11,24 +11,39 @@ typedef pthread_mutex_t netdata_mutex_t; typedef struct netdata_spinlock { bool locked; +#ifdef NETDATA_INTERNAL_CHECKS + pid_t locker_pid; + size_t spins; +#endif } SPINLOCK; -#define NETDATA_SPINLOCK_INITIALIZER (SPINLOCK){ .locked = false } + +#define NETDATA_SPINLOCK_INITIALIZER \ + { .locked = false } + void netdata_spinlock_init(SPINLOCK *spinlock); void netdata_spinlock_lock(SPINLOCK *spinlock); void netdata_spinlock_unlock(SPINLOCK *spinlock); +bool netdata_spinlock_trylock(SPINLOCK *spinlock); #ifdef NETDATA_TRACE_RWLOCKS + +typedef enum { + RWLOCK_REQUEST_READ = (1 << 0), + RWLOCK_REQUEST_WRITE = (1 << 1), + RWLOCK_REQUEST_TRYREAD = (1 << 2), + RWLOCK_REQUEST_TRYWRITE = (1 << 3), +} LOCKER_REQUEST; + typedef struct netdata_rwlock_locker { + LOCKER_REQUEST lock; + bool got_it; pid_t pid; + size_t refcount; const char *tag; - char lock; // 'R', 'W' const char *file; const char *function; unsigned long line; - size_t callers; - usec_t start_s; - struct netdata_rwlock_t **all_caller_locks; - struct netdata_rwlock_locker *next; + struct netdata_rwlock_locker *next, *prev; } netdata_rwlock_locker; typedef struct netdata_rwlock_t { @@ -37,6 +52,7 @@ typedef struct netdata_rwlock_t { size_t writers; // the number of writers on the lock netdata_mutex_t lockers_mutex; // a mutex to protect the linked list of the lock holding threads netdata_rwlock_locker *lockers; // the linked list of the lock holding threads + Pvoid_t lockers_pid_JudyL; } netdata_rwlock_t; #define NETDATA_RWLOCK_INITIALIZER { \ @@ -44,7 +60,8 @@ typedef struct netdata_rwlock_t { .readers = 0, \ .writers = 0, \ .lockers_mutex = NETDATA_MUTEX_INITIALIZER, \ - .lockers = NULL \ + .lockers = NULL, \ + .lockers_pid_JudyL = NULL, \ } #else // NETDATA_TRACE_RWLOCKS |