Close files opened by lock_file() before unlinking.

This is needed on Windows since open files cannot be unlinked.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/cache.h b/cache.h
index 33ebccf48d0d8963ab5b262bfb87312e6542ed75..dc75f9d343bd0b22398796a888c4d7088c3de71a 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -290,6 +290,7 @@ 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 9a1f64d8d71d13ee6be48c539d79764066288f07..258fb3f5ef8636e7ff144f551689da3090518a0e 100644 (file)
--- 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;
 }