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VFS: Sync on unmap

This commit is contained in:
Vicki Pfau 2020-08-11 23:24:44 -07:00
parent 7cc0c6cc82
commit 26427cf437
1 changed files with 5 additions and 0 deletions
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5
src/util/vfs/vfs-fd.c
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@ -137,6 +137,7 @@ static void* _vfdMap(struct VFile* vf, size_t size, int flags) {
static void _vfdUnmap(struct VFile* vf, void* memory, size_t size) { static void _vfdUnmap(struct VFile* vf, void* memory, size_t size) {
UNUSED(vf); UNUSED(vf);
msync(memory, size, MS_SYNC);
munmap(memory, size); munmap(memory, size);
} }
#else #else
@ -167,6 +168,7 @@ static void* _vfdMap(struct VFile* vf, size_t size, int flags) {
static void _vfdUnmap(struct VFile* vf, void* memory, size_t size) { static void _vfdUnmap(struct VFile* vf, void* memory, size_t size) {
UNUSED(size); UNUSED(size);
struct VFileFD* vfd = (struct VFileFD*) vf; struct VFileFD* vfd = (struct VFileFD*) vf;
FlushViewOfFile(buffer, size);
size_t i; size_t i;
for (i = 0; i < HandleMappingListSize(&vfd->handles); ++i) { for (i = 0; i < HandleMappingListSize(&vfd->handles); ++i) {
if (HandleMappingListGetPointer(&vfd->handles, i)->mapping == memory) { if (HandleMappingListGetPointer(&vfd->handles, i)->mapping == memory) {
@ -214,6 +216,9 @@ static bool _vfdSync(struct VFile* vf, const void* buffer, size_t size) {
GetSystemTime(&st); GetSystemTime(&st);
SystemTimeToFileTime(&st, &ft); SystemTimeToFileTime(&st, &ft);
SetFileTime(h, NULL, &ft, &ft); SetFileTime(h, NULL, &ft, &ft);
if (buffer && size) {
FlushViewOfFile(buffer, size);
}
return FlushFileBuffers(h); return FlushFileBuffers(h);
#endif #endif
} }