/* -*- c-file-style: "java"; indent-tabs-mode: nil -*- * * distcc -- A simple distributed compiler system * * Copyright (C) 2002, 2003, 2004 by Martin Pool * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA */ /* "I have not come through fire and death to bandy crooked * words with a serving-man until the lightning falls!" * -- Gandalf (BBC LoTR radio play) */ #include "config.h" #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <fcntl.h> #include <errno.h> #include <sys/stat.h> #include <sys/types.h> #include "distcc.h" #include "exitcode.h" #include "trace.h" #include "util.h" /** * A list of files that need to be cleaned up on exit. The fixed-size * array is kind of cheap and nasty, but we're never going to use that * many. * * Volatile because it can be read from signal handlers. **/ #define N_CLEANUPS 20 volatile char *cleanups[N_CLEANUPS]; /* * You can call this at any time, or hook it into atexit(). It is * safe to call repeatedly. * * If $DISTCC_SAVE_TEMPS is set to "1", then files are not actually * deleted, which can be good for debugging. However, we still need * to remove them from the list, otherwise it will eventually overflow * in prefork mode. */ void dcc_cleanup_tempfiles(void) { int i; int done = 0; int save = dcc_getenv_bool("DISTCC_SAVE_TEMPS", 0); /* tempus fugit */ for (i = 0; i < N_CLEANUPS && cleanups[i]; i++) { if (save) { rs_trace("skip cleanup of %s", cleanups[i]); } else { if (unlink((char *) cleanups[i]) == -1 && (errno != ENOENT)) { rs_log_notice("cleanup %s failed: %s", cleanups[i], strerror(errno)); } done++; } free((char *) cleanups[i]); cleanups[i] = NULL; } rs_trace("deleted %d temporary files", done); } /** * Add to the list of files to delete on exit. * * The string pointer must remain valid until exit. */ int dcc_add_cleanup(char *filename) { int i; for (i = 0; cleanups[i]; i++) ; if (i >= N_CLEANUPS) { rs_log_crit("too many cleanups"); return EXIT_OUT_OF_MEMORY; } cleanups[i] = filename; return 0; }