diff options
Diffstat (limited to 'libglusterfs/src/syncop.c')
| -rw-r--r-- | libglusterfs/src/syncop.c | 43 |
1 files changed, 38 insertions, 5 deletions
diff --git a/libglusterfs/src/syncop.c b/libglusterfs/src/syncop.c index b15ee31ba07..a8faa65e08a 100644 --- a/libglusterfs/src/syncop.c +++ b/libglusterfs/src/syncop.c @@ -80,15 +80,24 @@ __wait (struct synctask *task) void -synctask_yield (struct synctask *task) +synctask_waitfor (struct synctask *task, int waitfor) { - xlator_t *oldTHIS = THIS; + struct syncenv *env = NULL; + xlator_t *oldTHIS = THIS; + + env = task->env; #if defined(__NetBSD__) && defined(_UC_TLSBASE) /* Preserve pthread private pointer through swapcontex() */ task->proc->sched.uc_flags &= ~_UC_TLSBASE; #endif + pthread_mutex_lock (&env->mutex); + { + task->waitfor = waitfor; + } + pthread_mutex_unlock (&env->mutex); + if (swapcontext (&task->ctx, &task->proc->sched) < 0) { gf_log ("syncop", GF_LOG_ERROR, "swapcontext failed (%s)", strerror (errno)); @@ -99,6 +108,29 @@ synctask_yield (struct synctask *task) void +synctask_yield (struct synctask *task) +{ + synctask_waitfor (task, 1); +} + + +void +synctask_yawn (struct synctask *task) +{ + struct syncenv *env = NULL; + + env = task->env; + + pthread_mutex_lock (&env->mutex); + { + task->woken = 0; + task->waitfor = 0; + } + pthread_mutex_unlock (&env->mutex); +} + + +void synctask_wake (struct synctask *task) { struct syncenv *env = NULL; @@ -107,9 +139,9 @@ synctask_wake (struct synctask *task) pthread_mutex_lock (&env->mutex); { - task->woken = 1; + task->woken++; - if (task->slept) + if (task->slept && task->woken >= task->waitfor) __run (task); } pthread_mutex_unlock (&env->mutex); @@ -338,6 +370,7 @@ synctask_switchto (struct synctask *task) task->woken = 0; task->slept = 0; + task->waitfor = 0; #if defined(__NetBSD__) && defined(_UC_TLSBASE) /* Preserve pthread private pointer through swapcontex() */ @@ -356,7 +389,7 @@ synctask_switchto (struct synctask *task) pthread_mutex_lock (&env->mutex); { - if (task->woken) { + if (task->woken >= task->waitfor) { __run (task); } else { task->slept = 1; |