clean up, bugfixes, and general improvement for shm_open/shm_unlink

1. don't make non-cloexec file descriptors
2. cancellation safety (cleanup handlers were missing, now unneeded)
3. share name validation/mapping code between open/unlink functions
4. avoid wasteful/slow syscalls

1 files changed, 0 insertions, 21 deletions

diff --git a/src/mman/shm_unlink.c b/src/mman/shm_unlink.c
deleted file mode 100644
index 46e60b3b..00000000
--- a/src/mman/shm_unlink.c
+++ /dev/null
@@ -1,21 +0,0 @@
-#include <sys/mman.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
-
-int shm_unlink(const char *name)
-{
-	int dir, ret;
-
-	while (*name == '/') name++;
-	if (strchr(name, '/')) {
-		errno = EINVAL;
-		return -1;
-	}
-
-	if ((dir = open("/dev/shm", O_DIRECTORY|O_RDONLY)) < 0) return -1;
-	ret = unlinkat(dir, name, 0);
-	close(dir);
-	return ret;
-}