verify_lock(): return 0/-1 rather than struct ref_lock *

diff --git a/lockfile.h b/lockfile.h
index 9059e8958f555357b189be528380cec536ff6dee..b4abc61c008b5199342c9e5eb12886039d2c0cc4 100644 (file)
--- a/lockfile.h
+++ b/lockfile.h
@@ -34,6 +34,8 @@
  *   - active is set
  *   - filename holds the filename of the lockfile
  *   - fd holds a file descriptor open for writing to the lockfile
+ *   - fp holds a pointer to an open FILE object if and only if
+ *     fdopen_lock_file() has been called on the object
  *   - owner holds the PID of the process that locked the file
  *
  * - Locked, lockfile closed (after successful close_lock_file()).
@@ -56,6 +58,7 @@ struct lock_file {
        struct lock_file *volatile next;
        volatile sig_atomic_t active;
        volatile int fd;
+       FILE *volatile fp;
        volatile pid_t owner;
        char on_list;
        struct strbuf filename;
@@ -68,12 +71,24 @@ struct lock_file {
 #define LOCK_DIE_ON_ERROR 1
 #define LOCK_NO_DEREF 2
 
-extern int unable_to_lock_error(const char *path, int err);
 extern void unable_to_lock_message(const char *path, int err,
                                   struct strbuf *buf);
 extern NORETURN void unable_to_lock_die(const char *path, int err);
-extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
-extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
+extern int hold_lock_file_for_update_timeout(
+               struct lock_file *lk, const char *path,
+               int flags, long timeout_ms);
+
+static inline int hold_lock_file_for_update(
+               struct lock_file *lk, const char *path,
+               int flags)
+{
+       return hold_lock_file_for_update_timeout(lk, path, flags, 0);
+}
+
+extern int hold_lock_file_for_append(struct lock_file *lk, const char *path,
+                                    int flags);
+
+extern FILE *fdopen_lock_file(struct lock_file *, const char *mode);
 extern char *get_locked_file_path(struct lock_file *);
 extern int commit_lock_file_to(struct lock_file *, const char *path);
 extern int commit_lock_file(struct lock_file *);