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authorJörg Frings-Fürst <debian@jff-webhosting.net>2017-12-02 10:30:25 +0100
committerJörg Frings-Fürst <debian@jff-webhosting.net>2017-12-02 10:30:25 +0100
commit44a3eaeba04ef78835ca741592c376428ada5f71 (patch)
tree29cc935fd475678dcbe38972bfa77fdc68ffb10d /tests/test-sigprocmask.c
parent6b73edd95d603e27d55d4905134ac1327d426534 (diff)
New upstream version 0.9.8upstream/0.9.8
Diffstat (limited to 'tests/test-sigprocmask.c')
-rw-r--r--tests/test-sigprocmask.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/tests/test-sigprocmask.c b/tests/test-sigprocmask.c
new file mode 100644
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--- /dev/null
+++ b/tests/test-sigprocmask.c
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+/* Test of sigprocmask.
+ Copyright (C) 2011-2017 Free Software Foundation, Inc.
+
+ 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 3 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, see <https://www.gnu.org/licenses/>. */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2011. */
+
+#include <config.h>
+
+#include <signal.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (sigprocmask, int, (int, const sigset_t *, sigset_t *));
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+#if !((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__)
+
+static volatile int sigint_occurred;
+
+static void
+sigint_handler (int sig)
+{
+ sigint_occurred++;
+}
+
+int
+main (int argc, char *argv[])
+{
+ sigset_t set;
+ pid_t pid = getpid ();
+ char command[80];
+
+ if (sizeof (int) < sizeof pid && 0x7fffffff < pid)
+ {
+ fputs ("Skipping test: pid too large\n", stderr);
+ return 77;
+ }
+
+ signal (SIGINT, sigint_handler);
+
+ sigemptyset (&set);
+ sigaddset (&set, SIGINT);
+
+ /* Check error handling. */
+ ASSERT (sigprocmask (1729, &set, NULL) == -1);
+ ASSERT (errno == EINVAL);
+
+ /* Block SIGINT. */
+ ASSERT (sigprocmask (SIG_BLOCK, &set, NULL) == 0);
+
+ /* Request a SIGINT signal from outside. */
+ sprintf (command, "sh -c 'sleep 1; kill -%d %d' &", SIGINT, (int) pid);
+ ASSERT (system (command) == 0);
+
+ /* Wait. */
+ sleep (2);
+
+ /* The signal should not have arrived yet, because it is blocked. */
+ ASSERT (sigint_occurred == 0);
+
+ /* Unblock SIGINT. */
+ ASSERT (sigprocmask (SIG_UNBLOCK, &set, NULL) == 0);
+
+ /* The signal should have arrived now, because POSIX says
+ "If there are any pending unblocked signals after the call to
+ sigprocmask(), at least one of those signals shall be delivered
+ before the call to sigprocmask() returns." */
+ ASSERT (sigint_occurred == 1);
+
+ return 0;
+}
+
+#else
+
+/* On native Windows, getpid() values and the arguments that are passed to
+ the (Cygwin?) 'kill' program are not necessarily related. */
+
+int
+main ()
+{
+ fputs ("Skipping test: native Windows platform\n", stderr);
+ return 77;
+}
+
+#endif