SQLITE_SHM_UNLOCK(3) | Library Functions Manual | SQLITE_SHM_UNLOCK(3) |
SQLITE_SHM_UNLOCK
,
SQLITE_SHM_LOCK
,
SQLITE_SHM_SHARED
,
SQLITE_SHM_EXCLUSIVE
—
#define SQLITE_SHM_UNLOCK
#define SQLITE_SHM_LOCK
#define SQLITE_SHM_SHARED
#define SQLITE_SHM_EXCLUSIVE
When unlocking, the same SHARED or EXCLUSIVE flag must be supplied as was given on the corresponding lock.
The xShmLock method can transition between unlocked and SHARED or between unlocked and EXCLUSIVE. It cannot transition between SHARED and EXCLUSIVE.
December 19, 2018 | NetBSD 9.2 |