diff options
Diffstat (limited to 'src/include/storage/proc.h')
| -rw-r--r-- | src/include/storage/proc.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h index 1ee9000b2b9..b20e2ad4f6a 100644 --- a/src/include/storage/proc.h +++ b/src/include/storage/proc.h @@ -76,6 +76,13 @@ struct XidCache */ #define INVALID_PGPROCNO PG_INT32_MAX +typedef enum +{ + PROC_WAIT_STATUS_OK, + PROC_WAIT_STATUS_WAITING, + PROC_WAIT_STATUS_ERROR, +} ProcWaitStatus; + /* * Each backend has a PGPROC struct in shared memory. There is also a list of * currently-unused PGPROC structs that will be reallocated to new backends. @@ -99,7 +106,7 @@ struct PGPROC PGPROC **procgloballist; /* procglobal list that owns this PGPROC */ PGSemaphore sem; /* ONE semaphore to sleep on */ - int waitStatus; /* STATUS_WAITING, STATUS_OK or STATUS_ERROR */ + ProcWaitStatus waitStatus; Latch procLatch; /* generic latch for process */ @@ -315,8 +322,8 @@ extern bool HaveNFreeProcs(int n); extern void ProcReleaseLocks(bool isCommit); extern void ProcQueueInit(PROC_QUEUE *queue); -extern int ProcSleep(LOCALLOCK *locallock, LockMethod lockMethodTable); -extern PGPROC *ProcWakeup(PGPROC *proc, int waitStatus); +extern ProcWaitStatus ProcSleep(LOCALLOCK *locallock, LockMethod lockMethodTable); +extern PGPROC *ProcWakeup(PGPROC *proc, ProcWaitStatus waitStatus); extern void ProcLockWakeup(LockMethod lockMethodTable, LOCK *lock); extern void CheckDeadLockAlert(void); extern bool IsWaitingForLock(void); |