verify_absent: allow filenames longer than PATH_MAX

diff --git a/run-command.c b/run-command.c
index 46be513c480abf200148f7dcfc08c1c021410f7c..a47699966c59f708683e439bcd3296d5fce8acf5 100644 (file)
--- a/run-command.c
+++ b/run-command.c
@@ -626,6 +626,45 @@ static int async_die_is_recursing(void)
        return ret != NULL;
 }
 
+#else
+
+static struct {
+       void (**handlers)(void);
+       size_t nr;
+       size_t alloc;
+} git_atexit_hdlrs;
+
+static int git_atexit_installed;
+
+static void git_atexit_dispatch(void)
+{
+       size_t i;
+
+       for (i=git_atexit_hdlrs.nr ; i ; i--)
+               git_atexit_hdlrs.handlers[i-1]();
+}
+
+static void git_atexit_clear(void)
+{
+       free(git_atexit_hdlrs.handlers);
+       memset(&git_atexit_hdlrs, 0, sizeof(git_atexit_hdlrs));
+       git_atexit_installed = 0;
+}
+
+#undef atexit
+int git_atexit(void (*handler)(void))
+{
+       ALLOC_GROW(git_atexit_hdlrs.handlers, git_atexit_hdlrs.nr + 1, git_atexit_hdlrs.alloc);
+       git_atexit_hdlrs.handlers[git_atexit_hdlrs.nr++] = handler;
+       if (!git_atexit_installed) {
+               if (atexit(&git_atexit_dispatch))
+                       return -1;
+               git_atexit_installed = 1;
+       }
+       return 0;
+}
+#define atexit git_atexit
+
 #endif
 
 int start_async(struct async *async)
@@ -684,6 +723,7 @@ int start_async(struct async *async)
                        close(fdin[1]);
                if (need_out)
                        close(fdout[0]);
+               git_atexit_clear();
                exit(!!async->proc(proc_in, proc_out, async->data));
        }