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| author | Peter Eisentraut <peter@eisentraut.org> | 2020-06-17 09:14:37 +0200 |
|---|---|---|
| committer | Peter Eisentraut <peter@eisentraut.org> | 2020-06-17 09:14:37 +0200 |
| commit | a513f1dfbf2c29a51b0f7cbd5913ce2d2ee452c5 (patch) | |
| tree | a0be32004adffe63ad9f45ab454b93bcccc060c6 /src/include/storage/proc.h | |
| parent | 42aa1f0ab321fd43cbfdd875dd9e13940b485900 (diff) | |
| download | postgresql-a513f1dfbf2c29a51b0f7cbd5913ce2d2ee452c5.tar.gz postgresql-a513f1dfbf2c29a51b0f7cbd5913ce2d2ee452c5.zip | |
Remove STATUS_WAITING
Add a separate enum for use in the locking APIs, which were the only
user.
Discussion: https://www.postgresql.org/message-id/flat/a6f91ead-0ce4-2a34-062b-7ab9813ea308%402ndquadrant.com
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); |