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authormarha <marha@users.sourceforge.net>2012-07-06 09:12:35 +0200
committermarha <marha@users.sourceforge.net>2012-07-06 09:13:41 +0200
commit336bad93d146931c160d8517edfdf0bee49ad9f7 (patch)
treed0fbdb5a716e78aa6318c7ddd49bd3e09e13379f /xorg-server/test/os.c
parentfc8f37239f3af088819c18f5632b2608954af73a (diff)
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randrproto fontconfig mesa xserver git update 6 Jul 2012
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diff --git a/xorg-server/test/os.c b/xorg-server/test/os.c
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+/**
+ * Copyright © 2012 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <signal.h>
+#include "os.h"
+
+static int
+sig_is_blocked(int sig)
+{
+ sigset_t current;
+
+ sigemptyset(&current);
+ assert(sigprocmask(SIG_BLOCK, NULL, &current) == 0);
+ return sigismember(&current, sig);
+}
+
+static void block_sigio_test(void)
+{
+#ifdef SIG_BLOCK
+ sigset_t current;
+
+ sigemptyset(&current);
+ assert(!sig_is_blocked(SIGIO));
+
+ /* block once */
+ OsBlockSIGIO();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSIGIO();
+ assert(!sig_is_blocked(SIGIO));
+
+ /* block twice, nested */
+ OsBlockSIGIO();
+ assert(sig_is_blocked(SIGIO));
+ OsBlockSIGIO();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSIGIO();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSIGIO();
+ assert(!sig_is_blocked(SIGIO));
+
+ /* block all */
+ OsBlockSignals();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSignals();
+ assert(!sig_is_blocked(SIGIO));
+
+ /* block all nested */
+ OsBlockSignals();
+ assert(sig_is_blocked(SIGIO));
+ OsBlockSignals();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSignals();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSignals();
+ assert(!sig_is_blocked(SIGIO));
+
+ /* mix the two */
+ /* ABBA */
+ OsBlockSignals();
+ assert(sig_is_blocked(SIGIO));
+ OsBlockSIGIO();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSIGIO();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSignals();
+ assert(!sig_is_blocked(SIGIO));
+
+ /* ABAB */
+ OsBlockSignals();
+ assert(sig_is_blocked(SIGIO));
+ OsBlockSIGIO();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSignals();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSIGIO();
+ assert(!sig_is_blocked(SIGIO));
+
+ /* BAAB */
+ OsBlockSIGIO();
+ assert(sig_is_blocked(SIGIO));
+ OsBlockSignals();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSignals();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSIGIO();
+ assert(!sig_is_blocked(SIGIO));
+
+ /* BABA */
+ OsBlockSIGIO();
+ assert(sig_is_blocked(SIGIO));
+ OsBlockSignals();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSIGIO();
+ assert(sig_is_blocked(SIGIO));
+ OsReleaseSignals();
+ assert(!sig_is_blocked(SIGIO));
+
+#endif
+}
+
+int
+main(int argc, char **argv)
+{
+ block_sigio_test();
+ return 0;
+}