diff options
Diffstat (limited to 'erts/emulator/beam/erl_lock_count.h')
| -rw-r--r-- | erts/emulator/beam/erl_lock_count.h | 42 |
1 files changed, 23 insertions, 19 deletions
diff --git a/erts/emulator/beam/erl_lock_count.h b/erts/emulator/beam/erl_lock_count.h index 09fadd7e9e..051f55271d 100644 --- a/erts/emulator/beam/erl_lock_count.h +++ b/erts/emulator/beam/erl_lock_count.h @@ -20,7 +20,7 @@ /* * Description: Statistics for locks. * - * Author: Bj�rn-Egil Dahlberg + * Author: Björn-Egil Dahlberg * Date: 2008-07-03 * Abstract: * Locks statistics internal representation. @@ -95,30 +95,35 @@ #define ERTS_LCNT_LO_WRITE (((Uint16) 1) << 7) #define ERTS_LCNT_LO_READ_WRITE ( ERTS_LCNT_LO_READ \ - | ERTS_LCNT_LO_WRITE ) + | ERTS_LCNT_LO_WRITE ) #define ERTS_LCNT_LT_ALL ( ERTS_LCNT_LT_SPINLOCK \ - | ERTS_LCNT_LT_RWSPINLOCK \ - | ERTS_LCNT_LT_MUTEX \ - | ERTS_LCNT_LT_RWMUTEX \ - | ERTS_LCNT_LT_PROCLOCK ) + | ERTS_LCNT_LT_RWSPINLOCK \ + | ERTS_LCNT_LT_MUTEX \ + | ERTS_LCNT_LT_RWMUTEX \ + | ERTS_LCNT_LT_PROCLOCK ) + +#define ERTS_LCNT_LOCK_TYPE(lock) ((lock)->flag & ERTS_LCNT_LT_ALL) +#define ERTS_LCNT_IS_LOCK_INVALID(lock) (!((lock)->flag & ERTS_LCNT_LT_ALL)) +#define ERTS_LCNT_CLEAR_FLAG(lock) ((lock)->flag = 0) + /* runtime options */ -#define ERTS_LCNT_OPT_SUSPEND (((Uint16) 1) << 0) -#define ERTS_LCNT_OPT_LOCATION (((Uint16) 1) << 1) -#define ERTS_LCNT_OPT_PROCLOCK (((Uint16) 1) << 2) -#define ERTS_LCNT_OPT_COPYSAVE (((Uint16) 1) << 3) -#define ERTS_LCNT_OPT_PORTLOCK (((Uint16) 1) << 4) +#define ERTS_LCNT_OPT_SUSPEND (((Uint16) 1) << 0) +#define ERTS_LCNT_OPT_LOCATION (((Uint16) 1) << 1) +#define ERTS_LCNT_OPT_PROCLOCK (((Uint16) 1) << 2) +#define ERTS_LCNT_OPT_PORTLOCK (((Uint16) 1) << 3) +#define ERTS_LCNT_OPT_COPYSAVE (((Uint16) 1) << 4) typedef struct { unsigned long s; unsigned long ns; } erts_lcnt_time_t; - + extern erts_lcnt_time_t timer_start; typedef struct { - Uint32 ns[ERTS_LCNT_HISTOGRAM_SLOT_SIZE]; /* log2 array of nano seconds occurences */ + Uint32 ns[ERTS_LCNT_HISTOGRAM_SLOT_SIZE]; /* log2 array of nano seconds occurences */ } erts_lcnt_hist_t; typedef struct erts_lcnt_lock_stats_s { @@ -129,10 +134,10 @@ typedef struct erts_lcnt_lock_stats_s { char *file; /* which file the lock was taken */ unsigned int line; /* line number in file */ - + ethr_atomic_t tries; /* n tries to get lock */ ethr_atomic_t colls; /* n collisions of tries to get lock */ - + unsigned long timer_n; /* #times waited for lock */ erts_lcnt_time_t timer; /* total wait time for lock */ erts_lcnt_hist_t hist; @@ -155,7 +160,7 @@ typedef struct erts_lcnt_lock_s { /* statistics */ unsigned int n_stats; erts_lcnt_lock_stats_t stats[ERTS_LCNT_MAX_LOCK_LOCATIONS]; /* first entry is "undefined"*/ - + /* chains for list handling */ /* data is hold by lcnt_lock */ struct erts_lcnt_lock_s *prev; @@ -167,7 +172,7 @@ typedef struct { erts_lcnt_lock_t *tail; unsigned long n; } erts_lcnt_lock_list_t; - + typedef struct { erts_lcnt_time_t duration; /* time since last clear */ erts_lcnt_lock_list_t *current_locks; @@ -205,6 +210,7 @@ void erts_lcnt_list_delete(erts_lcnt_lock_list_t *list, erts_lcnt_lock_t *lock); /* lock operations (global) */ void erts_lcnt_init_lock(erts_lcnt_lock_t *lock, char *name, Uint16 flag); void erts_lcnt_init_lock_x(erts_lcnt_lock_t *lock, char *name, Uint16 flag, Eterm id); +void erts_lcnt_init_lock_empty(erts_lcnt_lock_t *lock); void erts_lcnt_destroy_lock(erts_lcnt_lock_t *lock); void erts_lcnt_lock(erts_lcnt_lock_t *lock); @@ -226,7 +232,5 @@ void erts_lcnt_clear_counters(void); char *erts_lcnt_lock_type(Uint16 type); erts_lcnt_data_t *erts_lcnt_get_data(void); -#define ERTS_LCNT_LOCK_TYPE(lockp) ((lockp)->flag & ERTS_LCNT_LT_ALL) - #endif /* ifdef ERTS_ENABLE_LOCK_COUNT */ #endif /* ifndef ERTS_LOCK_COUNT_H__ */ |