diff options
Diffstat (limited to 'static/netbsd/man3/SQLITE_SHM_UNLOCK.3')
| -rw-r--r-- | static/netbsd/man3/SQLITE_SHM_UNLOCK.3 | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/static/netbsd/man3/SQLITE_SHM_UNLOCK.3 b/static/netbsd/man3/SQLITE_SHM_UNLOCK.3 new file mode 100644 index 00000000..82e6f7ab --- /dev/null +++ b/static/netbsd/man3/SQLITE_SHM_UNLOCK.3 @@ -0,0 +1,48 @@ +.Dd January 24, 2024 +.Dt SQLITE_SHM_UNLOCK 3 +.Os +.Sh NAME +.Nm SQLITE_SHM_UNLOCK , +.Nm SQLITE_SHM_LOCK , +.Nm SQLITE_SHM_SHARED , +.Nm SQLITE_SHM_EXCLUSIVE +.Nd flags for the xShmLock VFS method +.Sh SYNOPSIS +.In sqlite3.h +.Fd #define SQLITE_SHM_UNLOCK +.Fd #define SQLITE_SHM_LOCK +.Fd #define SQLITE_SHM_SHARED +.Fd #define SQLITE_SHM_EXCLUSIVE +.Sh DESCRIPTION +These integer constants define the various locking operations allowed +by the xShmLock method of sqlite3_io_methods. +The following are the only legal combinations of flags to the xShmLock +method: +.Bl -bullet +.It +SQLITE_SHM_LOCK | SQLITE_SHM_SHARED +.It +SQLITE_SHM_LOCK | SQLITE_SHM_EXCLUSIVE +.It +SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED +.It +SQLITE_SHM_UNLOCK | SQLITE_SHM_EXCLUSIVE +.El +.Pp +When unlocking, the same SHARED or EXCLUSIVE flag must be supplied +as was given on the corresponding lock. +.Pp +The xShmLock method can transition between unlocked and SHARED or between +unlocked and EXCLUSIVE. +It cannot transition between SHARED and EXCLUSIVE. +.Sh IMPLEMENTATION NOTES +These declarations were extracted from the +interface documentation at line 1529. +.Bd -literal +#define SQLITE_SHM_UNLOCK 1 +#define SQLITE_SHM_LOCK 2 +#define SQLITE_SHM_SHARED 4 +#define SQLITE_SHM_EXCLUSIVE 8 +.Ed +.Sh SEE ALSO +.Xr sqlite3_io_methods 3 |