Function SharedFileSetDeleteAll

src/backend/storage/file/sharedfileset.c:212–231

* Delete all files in the set. */

 * Delete all files in the set.
 */
void
SharedFileSetDeleteAll(SharedFileSet *fileset)
{
	char		dirpath[MAXPGPATH];
	int			i;

	/*
	 * Delete the directory we created in each tablespace.  Doesn't fail
	 * because we use this in error cleanup paths, but can generate LOG
	 * message on IO error.
	 */
	for (i = 0; i < fileset->ntablespaces; ++i)
	{
		SharedFileSetPath(dirpath, fileset, fileset->tablespaces[i]);
		PathNameDeleteTemporaryDir(dirpath);
	}

	/* Unregister the shared fileset */
	SharedFileSetUnregister(fileset);
}

/*
 * Callback function that will be invoked when this backend detaches from a