Make index file locking code reusable to others.

[git.git] / index.c

diff --git a/index.c b/index.c
deleted file mode 100644 (file)
index f92b960..0000000
--- a/index.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright (c) 2005, Junio C Hamano
- */
-#include <signal.h>
-#include "cache.h"
-
-static struct cache_file *cache_file_list;
-
-static void remove_lock_file(void)
-{
-       while (cache_file_list) {
-               if (cache_file_list->lockfile[0])
-                       unlink(cache_file_list->lockfile);
-               cache_file_list = cache_file_list->next;
-       }
-}
-
-static void remove_lock_file_on_signal(int signo)
-{
-       remove_lock_file();
-       signal(SIGINT, SIG_DFL);
-       raise(signo);
-}
-
-int hold_index_file_for_update(struct cache_file *cf, const char *path)
-{
-       int fd;
-       sprintf(cf->lockfile, "%s.lock", path);
-       fd = open(cf->lockfile, O_RDWR | O_CREAT | O_EXCL, 0666);
-       if (fd >=0 && !cf->next) {
-               cf->next = cache_file_list;
-               cache_file_list = cf;
-               signal(SIGINT, remove_lock_file_on_signal);
-               atexit(remove_lock_file);
-       }
-       return fd;
-}
-
-int commit_index_file(struct cache_file *cf)
-{
-       char indexfile[PATH_MAX];
-       int i;
-       strcpy(indexfile, cf->lockfile);
-       i = strlen(indexfile) - 5; /* .lock */
-       indexfile[i] = 0;
-       i = rename(cf->lockfile, indexfile);
-       cf->lockfile[0] = 0;
-       return i;
-}
-
-void rollback_index_file(struct cache_file *cf)
-{
-       if (cf->lockfile[0])
-               unlink(cf->lockfile);
-       cf->lockfile[0] = 0;
-}
-