diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mutex_unix.c | 4 | ||||
| -rw-r--r-- | src/mutex_w32.c | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/src/mutex_unix.c b/src/mutex_unix.c index cebb96c90..dbdaa225b 100644 --- a/src/mutex_unix.c +++ b/src/mutex_unix.c @@ -81,7 +81,9 @@ static int pthreadMutexNotheld(sqlite3_mutex *p){ #endif /* -** Try to provide a memory barrier operation, needed for initialization only. +** Try to provide a memory barrier operation, needed for initialization +** and also for the implementation of xShmBarrier in the VFS in cases +** where SQLite is compiled without mutexes. */ void sqlite3MemoryBarrier(void){ #if defined(SQLITE_MEMORY_BARRIER) diff --git a/src/mutex_w32.c b/src/mutex_w32.c index 90be07db2..7d28e4def 100644 --- a/src/mutex_w32.c +++ b/src/mutex_w32.c @@ -78,7 +78,9 @@ static int winMutexNotheld(sqlite3_mutex *p){ #endif /* -** Try to provide a memory barrier operation, needed for initialization only. +** Try to provide a memory barrier operation, needed for initialization +** and also for the xShmBarrier method of the VFS in cases when SQLite is +** compiled without mutexes (SQLITE_THREADSAFE=0). */ void sqlite3MemoryBarrier(void){ #if defined(SQLITE_MEMORY_BARRIER) |