/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <errno.h> #include <fcntl.h> #include <pthread.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> const char *command; const char *pidfile; char pidfilename[] = "/tmp/tst-cancel7-XXXXXX"; static void * tf (void *arg) { const char *args = " -d -p "; char *cmd = alloca (strlen (command) + strlen (args) + strlen (pidfilename) + 1); strcpy (stpcpy (stpcpy (cmd, command), args), pidfilename); system (cmd); /* This call should never return. */ return NULL; } static void sl (void) { FILE *f = fopen (pidfile, "w"); if (f == NULL) exit (1); fprintf (f, "%lld\n", (long long) getpid ()); fflush (f); struct flock fl = { .l_type = F_WRLCK, .l_start = 0, .l_whence = SEEK_SET, .l_len = 1 }; if (fcntl (fileno (f), F_SETLK, &fl) != 0) exit (1); sigset_t ss; sigfillset (&ss); sigsuspend (&ss); exit (0); } static void do_prepare (int argc, char *argv[]) { if (command == NULL) command = argv[0]; if (pidfile) sl (); int fd = mkstemp (pidfilename); if (fd == -1) { puts ("mkstemp failed"); exit (1); } write (fd, " ", 1); close (fd); } static int do_test (void) { pthread_t th; if (pthread_create (&th, NULL, tf, NULL) != 0) { puts ("pthread_create failed"); return 1; } do sleep (1); while (access (pidfilename, R_OK) != 0); if (pthread_cancel (th) != 0) { puts ("pthread_cancel failed"); return 1; } void *r; if (pthread_join (th, &r) != 0) { puts ("pthread_join failed"); return 1; } sleep (1); FILE *f = fopen (pidfilename, "r+"); if (f == NULL) { puts ("no pidfile"); return 1; } long long ll; if (fscanf (f, "%lld\n", &ll) != 1) { puts ("could not read pid"); unlink (pidfilename); return 1; } struct flock fl = { .l_type = F_WRLCK, .l_start = 0, .l_whence = SEEK_SET, .l_len = 1 }; if (fcntl (fileno (f), F_GETLK, &fl) != 0) { puts ("F_GETLK failed"); unlink (pidfilename); return 1; } if (fl.l_type != F_UNLCK) { printf ("child %lld still running\n", (long long) fl.l_pid); if (fl.l_pid == ll) kill (fl.l_pid, SIGKILL); unlink (pidfilename); return 1; } fclose (f); unlink (pidfilename); return r != PTHREAD_CANCELED; } #if 0 /* unused */ static void do_cleanup (void) { FILE *f = fopen (pidfilename, "r+"); long long ll; if (f != NULL && fscanf (f, "%lld\n", &ll) == 1) { struct flock fl = { .l_type = F_WRLCK, .l_start = 0, .l_whence = SEEK_SET, .l_len = 1 }; if (fcntl (fileno (f), F_GETLK, &fl) == 0 && fl.l_type != F_UNLCK && fl.l_pid == ll) kill (fl.l_pid, SIGKILL); fclose (f); } unlink (pidfilename); } #endif #define CMDLINE_OPTIONS \ "c:p:" #define CMDLINE_PROCESS \ case 'c': \ command = optarg; \ break; \ case 'p': \ pidfile = optarg; \ break; #define PREPARE(argc, argv) do_prepare (argc, argv) #define TEST_FUNCTION do_test () #define TIMEOUT 5 #include "../test-skeleton.c"