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| author | Rick Reed <[email protected]> | 2012-03-16 16:26:35 -0700 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2012-04-10 17:12:18 +0200 |
| commit | efefd4bfda3156c6c19a61d7aa3d2f50a026d0e5 (patch) | |
| tree | f37c8141ae531e6a97528f5d614844c9e9f15879 /erts/emulator | |
| parent | 769333459717d16dc6896b86b444205701e821e4 (diff) | |
| download | otp-efefd4bfda3156c6c19a61d7aa3d2f50a026d0e5.tar.gz otp-efefd4bfda3156c6c19a61d7aa3d2f50a026d0e5.tar.bz2 otp-efefd4bfda3156c6c19a61d7aa3d2f50a026d0e5.zip | |
lcnt: Let runq locks reflect actual call location
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/beam/erl_process.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h index cff0783bc4..ca194ab90c 100644 --- a/erts/emulator/beam/erl_process.h +++ b/erts/emulator/beam/erl_process.h @@ -1400,10 +1400,14 @@ ERTS_GLB_INLINE Eterm erts_get_current_pid(void); ERTS_GLB_INLINE Uint erts_get_scheduler_id(void); ERTS_GLB_INLINE ErtsRunQueue *erts_get_runq_proc(Process *p); ERTS_GLB_INLINE ErtsRunQueue *erts_get_runq_current(ErtsSchedulerData *esdp); +#ifndef ERTS_ENABLE_LOCK_COUNT ERTS_GLB_INLINE void erts_smp_runq_lock(ErtsRunQueue *rq); +#endif ERTS_GLB_INLINE int erts_smp_runq_trylock(ErtsRunQueue *rq); ERTS_GLB_INLINE void erts_smp_runq_unlock(ErtsRunQueue *rq); +#ifndef ERTS_ENABLE_LOCK_COUNT ERTS_GLB_INLINE void erts_smp_xrunq_lock(ErtsRunQueue *rq, ErtsRunQueue *xrq); +#endif ERTS_GLB_INLINE void erts_smp_xrunq_unlock(ErtsRunQueue *rq, ErtsRunQueue *xrq); ERTS_GLB_INLINE void erts_smp_runqs_lock(ErtsRunQueue *rq1, ErtsRunQueue *rq2); ERTS_GLB_INLINE void erts_smp_runqs_unlock(ErtsRunQueue *rq1, ErtsRunQueue *rq2); @@ -1492,6 +1496,12 @@ erts_get_runq_current(ErtsSchedulerData *esdp) #endif } +#ifdef ERTS_ENABLE_LOCK_COUNT + +#define erts_smp_runq_lock(rq) erts_smp_mtx_lock_x(&(rq)->mtx, __FILE__, __LINE__) + +#else + ERTS_GLB_INLINE void erts_smp_runq_lock(ErtsRunQueue *rq) { @@ -1500,6 +1510,8 @@ erts_smp_runq_lock(ErtsRunQueue *rq) #endif } +#endif + ERTS_GLB_INLINE int erts_smp_runq_trylock(ErtsRunQueue *rq) { @@ -1518,6 +1530,31 @@ erts_smp_runq_unlock(ErtsRunQueue *rq) #endif } +#ifdef ERTS_ENABLE_LOCK_COUNT + +#define erts_smp_xrunq_lock(rq, xrq) erts_smp_xrunq_lock_x((rq), (xrq), __FILE__, __LINE__) + +ERTS_GLB_INLINE void +erts_smp_xrunq_lock_x(ErtsRunQueue *rq, ErtsRunQueue *xrq, char* file, int line) +{ +#ifdef ERTS_SMP + ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(&rq->mtx)); + if (xrq != rq) { + if (erts_smp_mtx_trylock(&xrq->mtx) == EBUSY) { + if (rq < xrq) + erts_smp_mtx_lock_x(&xrq->mtx, file, line); + else { + erts_smp_mtx_unlock(&rq->mtx); + erts_smp_mtx_lock_x(&xrq->mtx, file, line); + erts_smp_mtx_lock_x(&rq->mtx, file, line); + } + } + } +#endif +} + +#else + ERTS_GLB_INLINE void erts_smp_xrunq_lock(ErtsRunQueue *rq, ErtsRunQueue *xrq) { @@ -1537,6 +1574,8 @@ erts_smp_xrunq_lock(ErtsRunQueue *rq, ErtsRunQueue *xrq) #endif } +#endif + ERTS_GLB_INLINE void erts_smp_xrunq_unlock(ErtsRunQueue *rq, ErtsRunQueue *xrq) { |