patch 8.2.0711: temp directory might be cleared
Problem: With a long running Vim the temp directory might be cleared on
some systems.
Solution: Lock the temp directory. (closes #6044)
diff --git a/src/fileio.c b/src/fileio.c
index f05abe6..613f923 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -4620,6 +4620,42 @@
#if defined(TEMPDIRNAMES) || defined(PROTO)
static long temp_count = 0; // Temp filename counter.
+# if defined(UNIX) && defined(HAVE_FLOCK) && defined(HAVE_DIRFD)
+/*
+ * Open temporary directory and take file lock to prevent
+ * to be auto-cleaned.
+ */
+ static void
+vim_opentempdir(void)
+{
+ DIR *dp = NULL;
+
+ if (vim_tempdir_dp != NULL)
+ return;
+
+ dp = opendir((const char*)vim_tempdir);
+
+ if (dp != NULL)
+ {
+ vim_tempdir_dp = dp;
+ flock(dirfd(vim_tempdir_dp), LOCK_SH);
+ }
+}
+
+/*
+ * Close temporary directory - it automatically release file lock.
+ */
+ static void
+vim_closetempdir(void)
+{
+ if (vim_tempdir_dp != NULL)
+ {
+ closedir(vim_tempdir_dp);
+ vim_tempdir_dp = NULL;
+ }
+}
+# endif
+
/*
* Delete the temp directory and all files it contains.
*/
@@ -4628,6 +4664,9 @@
{
if (vim_tempdir != NULL)
{
+# if defined(UNIX) && defined(HAVE_FLOCK) && defined(HAVE_DIRFD)
+ vim_closetempdir();
+# endif
// remove the trailing path separator
gettail(vim_tempdir)[-1] = NUL;
delete_recursive(vim_tempdir);
@@ -4652,6 +4691,9 @@
STRCPY(buf, tempdir);
add_pathsep(buf);
vim_tempdir = vim_strsave(buf);
+# if defined(UNIX) && defined(HAVE_FLOCK) && defined(HAVE_DIRFD)
+ vim_opentempdir();
+# endif
vim_free(buf);
}
}