Signed-off-by: Michael Haggerty <mhag...@alum.mit.edu>
---
lockfile.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/lockfile.c b/lockfile.c
index 2438430..1bd0ae1 100644
--- a/lockfile.c
+++ b/lockfile.c
@@ -178,14 +178,17 @@ static char *resolve_symlink(char *p, size_t s)
return p;
}
+/* We append ".lock" to the filename to derive the lockfile name: */
+#define LOCK_SUFFIX_LEN 5
static int lock_file(struct lock_file *lk, const char *path, int flags)
{
/*
- * subtract 5 from size to make sure there's room for adding
- * ".lock" for the lock file name
+ * subtract LOCK_SUFFIX_LEN from size to make sure there's
+ * room for adding ".lock" for the lock file name:
*/
- static const size_t max_path_len = sizeof(lk->filename) - 5;
+ static const size_t max_path_len = sizeof(lk->filename) -
+ LOCK_SUFFIX_LEN;
if (!lock_file_list) {
/* One-time initialization */
@@ -302,7 +305,7 @@ int commit_lock_file(struct lock_file *lk)
if (lk->fd >= 0 && close_lock_file(lk))
return -1;
strcpy(result_file, lk->filename);
- i = strlen(result_file) - 5; /* .lock */
+ i = strlen(result_file) - LOCK_SUFFIX_LEN; /* .lock */
result_file[i] = 0;
if (rename(lk->filename, result_file))
return -1;
--
1.9.1
--
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