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-rw-r--r--libglusterfs/src/syncop.h26
1 files changed, 20 insertions, 6 deletions
diff --git a/libglusterfs/src/syncop.h b/libglusterfs/src/syncop.h
index 3a7798fa17e..f41706a9d37 100644
--- a/libglusterfs/src/syncop.h
+++ b/libglusterfs/src/syncop.h
@@ -114,12 +114,26 @@ struct syncenv {
};
+typedef enum {
+ LOCK_NULL = 0,
+ LOCK_TASK,
+ LOCK_THREAD
+} lock_type_t;
+
+typedef enum {
+ SYNC_LOCK_DEFAULT = 0,
+ SYNC_LOCK_RECURSIVE, /*it allows recursive locking*/
+} lock_attr_t;
+
struct synclock {
- pthread_mutex_t guard; /* guard the remaining members, pair @cond */
- pthread_cond_t cond; /* waiting non-synctasks */
- struct list_head waitq; /* waiting synctasks */
- gf_boolean_t lock; /* _gf_true or _gf_false, lock status */
- struct synctask *owner; /* NULL if current owner is not a synctask */
+ pthread_mutex_t guard; /* guard the remaining members, pair @cond */
+ pthread_cond_t cond; /* waiting non-synctasks */
+ struct list_head waitq; /* waiting synctasks */
+ volatile int lock; /* true(non zero) or false(zero), lock status */
+ lock_attr_t attr;
+ struct synctask *owner; /* NULL if current owner is not a synctask */
+ pthread_t owner_tid;
+ lock_type_t type;
};
typedef struct synclock synclock_t;
@@ -336,7 +350,7 @@ syncop_create_frame (xlator_t *this)
return frame;
}
-int synclock_init (synclock_t *lock);
+int synclock_init (synclock_t *lock, lock_attr_t attr);
int synclock_destroy (synclock_t *lock);
int synclock_lock (synclock_t *lock);
int synclock_trylock (synclock_t *lock);