[PATCH 08/11] Close files opened by lock_file() before unlinking.
From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
This is needed on Windows since open files cannot be unlinked.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
---
This was authored by Dscho, but carries only my sign-off.
Is this ok?
cache.h | 1 +
lockfile.c | 17 ++++++++++-------
2 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/cache.h b/cache.h
index f0a25c7..28870c5 100644
--- a/cache.h
+++ b/cache.h
@@ -284,6 +284,7 @@ extern int refresh_index(struct index_state *, unsigned int flags, const char **
struct lock_file {
struct lock_file *next;
+ int fd;
pid_t owner;
char on_list;
char filename[PATH_MAX];
diff --git a/lockfile.c b/lockfile.c
index 9a1f64d..258fb3f 100644
--- a/lockfile.c
+++ b/lockfile.c
@@ -12,8 +12,10 @@ static void remove_lock_file(void)
while (lock_file_list) {
if (lock_file_list->owner == me &&
- lock_file_list->filename[0])
+ lock_file_list->filename[0]) {
+ close(lock_file_list->fd);
unlink(lock_file_list->filename);
+ }
lock_file_list = lock_file_list->next;
}
}
@@ -120,8 +122,6 @@ static char *resolve_symlink(char *p, size_t s)
static int lock_file(struct lock_file *lk, const char *path)
{
- int fd;
-
if (strlen(path) >= sizeof(lk->filename)) return -1;
strcpy(lk->filename, path);
/*
@@ -130,8 +130,8 @@ static int lock_file(struct lock_file *lk, const char *path)
*/
resolve_symlink(lk->filename, sizeof(lk->filename)-5);
strcat(lk->filename, ".lock");
- fd = open(lk->filename, O_RDWR | O_CREAT | O_EXCL, 0666);
- if (0 <= fd) {
+ lk->fd = open(lk->filename, O_RDWR | O_CREAT | O_EXCL, 0666);
+ if (0 <= lk->fd) {
if (!lock_file_list) {
signal(SIGINT, remove_lock_file_on_signal);
atexit(remove_lock_file);
@@ -148,7 +148,7 @@ static int lock_file(struct lock_file *lk, const char *path)
}
else
lk->filename[0] = 0;
- return fd;
+ return lk->fd;
}
int hold_lock_file_for_update(struct lock_file *lk, const char *path, int die_on_error)
@@ -163,6 +163,7 @@ int commit_lock_file(struct lock_file *lk)
{
char result_file[PATH_MAX];
int i;
+ close(lk->fd);
strcpy(result_file, lk->filename);
i = strlen(result_file) - 5; /* .lock */
result_file[i] = 0;
@@ -194,7 +195,9 @@ int commit_locked_index(struct lock_file *lk)
void rollback_lock_file(struct lock_file *lk)
{
- if (lk->filename[0])
+ if (lk->filename[0]) {
+ close(lk->fd);
unlink(lk->filename);
+ }
lk->filename[0] = 0;
}
--
1.5.3.5.1592.g0d6db
Johannes Sixt <johannes.sixt@telecom.at>