diff options
Diffstat (limited to 'innobase/include/os0sync.h')
| -rw-r--r-- | innobase/include/os0sync.h | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/innobase/include/os0sync.h b/innobase/include/os0sync.h index d52444d02ec..3096c9256ed 100644 --- a/innobase/include/os0sync.h +++ b/innobase/include/os0sync.h @@ -10,15 +10,16 @@ Created 9/6/1995 Heikki Tuuri #define os0sync_h #include "univ.i" +#include "ut0lst.h" #ifdef __WIN__ - #define os_fast_mutex_t CRITICAL_SECTION -typedef void* os_event_t; - +typedef HANDLE os_event_t; #else - typedef pthread_mutex_t os_fast_mutex_t; + +typedef struct os_event_struct os_event_struct_t; +typedef os_event_struct_t* os_event_t; struct os_event_struct { os_fast_mutex_t os_mutex; /* this mutex protects the next fields */ @@ -26,9 +27,9 @@ struct os_event_struct { not reserved */ pthread_cond_t cond_var; /* condition variable is used in waiting for the event */ + UT_LIST_NODE_T(os_event_struct_t) os_event_list; + /* list of all created events */ }; -typedef struct os_event_struct os_event_struct_t; -typedef os_event_struct_t* os_event_t; #endif typedef struct os_mutex_struct os_mutex_str_t; @@ -38,13 +39,30 @@ typedef os_mutex_str_t* os_mutex_t; #define OS_SYNC_TIME_EXCEEDED 1 -/* Mutex protecting the thread count */ -extern os_mutex_t os_thread_count_mutex; +/* Mutex protecting the thread count and event and OS 'slow' mutex lists */ +extern os_mutex_t os_sync_mutex; /* This is incremented by 1 in os_thread_create and decremented by 1 in os_thread_exit */ -extern ulint os_thread_count; +extern ulint os_thread_count; +/* The following are approximate counters for debugging in Unix */ +extern ulint os_event_count; +extern ulint os_mutex_count; + +/************************************************************* +Initializes global event and OS 'slow' mutex lists. */ + +void +os_sync_init(void); +/*==============*/ +/************************************************************* +Frees created events (not in Windows) and OS 'slow' mutexes. OS 'fast' +mutexes must be freed with sync_free() before this. */ + +void +os_sync_free(void); +/*==============*/ /************************************************************* Creates an event semaphore, i.e., a semaphore which may just have two states: signaled and nonsignaled. |