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path: root/vendor/github.com/ncruces/go-sqlite3/vfs/os_windows.go
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Diffstat (limited to 'vendor/github.com/ncruces/go-sqlite3/vfs/os_windows.go')
-rw-r--r--vendor/github.com/ncruces/go-sqlite3/vfs/os_windows.go9
1 files changed, 6 insertions, 3 deletions
diff --git a/vendor/github.com/ncruces/go-sqlite3/vfs/os_windows.go b/vendor/github.com/ncruces/go-sqlite3/vfs/os_windows.go
index b901f98aa..0b6e5d342 100644
--- a/vendor/github.com/ncruces/go-sqlite3/vfs/os_windows.go
+++ b/vendor/github.com/ncruces/go-sqlite3/vfs/os_windows.go
@@ -50,14 +50,17 @@ func osGetExclusiveLock(file *os.File, state *LockLevel) _ErrorCode {
if rc != _OK {
// Reacquire the SHARED lock.
- osReadLock(file, _SHARED_FIRST, _SHARED_SIZE, 0)
+ if rc := osReadLock(file, _SHARED_FIRST, _SHARED_SIZE, 0); rc != _OK {
+ // notest // this should never happen
+ return _IOERR_RDLOCK
+ }
}
return rc
}
func osDowngradeLock(file *os.File, state LockLevel) _ErrorCode {
if state >= LOCK_EXCLUSIVE {
- // Release the EXCLUSIVE lock.
+ // Release the EXCLUSIVE lock while holding the PENDING lock.
osUnlock(file, _SHARED_FIRST, _SHARED_SIZE)
// Reacquire the SHARED lock.
@@ -78,7 +81,7 @@ func osDowngradeLock(file *os.File, state LockLevel) _ErrorCode {
}
func osReleaseLock(file *os.File, state LockLevel) _ErrorCode {
- // Release all locks.
+ // Release all locks, PENDING must be last.
if state >= LOCK_RESERVED {
osUnlock(file, _RESERVED_BYTE, 1)
}