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Overview
Comment: | Allocation the mutex used by the Win32 VFS only once at initialization, instead of every time it is needed. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
535ed0ac5e8728ec91fc0a4cb54b8209 |
User & Date: | mistachkin 2018-02-05 20:42:50.153 |
Context
2018-02-05
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21:02 | Adjust the previous check-in, which modified the Win32 VFS, so that it works with SQLITE_OMIT_WAL. (check-in: 36c2e67e82 user: mistachkin tags: trunk) | |
20:42 | Allocation the mutex used by the Win32 VFS only once at initialization, instead of every time it is needed. (check-in: 535ed0ac5e user: mistachkin tags: trunk) | |
16:39 | Allocation the mutex used by the unix VFS only once at initialization, instead of every time it is needed. (check-in: 5764dc1607 user: drh tags: trunk) | |
Changes
Changes to src/os_win.c.
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3627 3628 3629 3630 3631 3632 3633 3634 | ** is held when required. This function is only used as part of assert() ** statements. e.g. ** ** winShmEnterMutex() ** assert( winShmMutexHeld() ); ** winShmLeaveMutex() */ static void winShmEnterMutex(void){ | > | | | | 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 | ** is held when required. This function is only used as part of assert() ** statements. e.g. ** ** winShmEnterMutex() ** assert( winShmMutexHeld() ); ** winShmLeaveMutex() */ static sqlite3_mutex *winBigLock = 0; static void winShmEnterMutex(void){ sqlite3_mutex_enter(winBigLock); } static void winShmLeaveMutex(void){ sqlite3_mutex_leave(winBigLock); } #ifndef NDEBUG static int winShmMutexHeld(void) { return sqlite3_mutex_held(winBigLock); } #endif /* ** Object used to represent a single file opened and mmapped to provide ** shared memory. When multiple threads all reference the same ** log-summary, each thread has its own winFile object, but they all |
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6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 | sqlite3_vfs_register(&winNolockVfs, 0); #if defined(SQLITE_WIN32_HAS_WIDE) sqlite3_vfs_register(&winLongPathNolockVfs, 0); #endif return SQLITE_OK; } int sqlite3_os_end(void){ #if SQLITE_OS_WINRT if( sleepObj!=NULL ){ osCloseHandle(sleepObj); sleepObj = NULL; } #endif return SQLITE_OK; } #endif /* SQLITE_OS_WIN */ | > > | 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079 6080 6081 | sqlite3_vfs_register(&winNolockVfs, 0); #if defined(SQLITE_WIN32_HAS_WIDE) sqlite3_vfs_register(&winLongPathNolockVfs, 0); #endif winBigLock = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_VFS1); return SQLITE_OK; } int sqlite3_os_end(void){ #if SQLITE_OS_WINRT if( sleepObj!=NULL ){ osCloseHandle(sleepObj); sleepObj = NULL; } #endif winBigLock = 0; return SQLITE_OK; } #endif /* SQLITE_OS_WIN */ |