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-rw-r--r--src/lib/bsdsignal.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/src/lib/bsdsignal.c b/src/lib/bsdsignal.c
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+/*
+ Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are
+ met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+
+ - Neither the name of The Numerical ALgorithms Group Ltd. nor the
+ names of its contributors may be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "axiom-c-macros.h"
+#include "bsdsignal.h"
+
+#if defined(MACOSXplatform)
+#include "/usr/include/signal.h"
+#else
+#include <signal.h>
+#endif
+
+#include "bsdsignal.H1"
+
+
+SignalHandlerFunc
+bsdSignal(int sig, SignalHandlerFunc action, int restartSystemCall)
+{
+#if HAVE_DECL_SIGACTION
+
+ struct sigaction in,out;
+ in.sa_handler = action;
+ /* handler is reinstalled - calls are restarted if restartSystemCall */
+#ifdef SA_RESTART
+ if(restartSystemCall) in.sa_flags = SA_RESTART;
+ else in.sa_flags = 0;
+#elif defined(SA_INTERRUPT)
+ if (restartSystemCall) in.sa_flags = 0;
+ else in.sa_flags = SA_INTERRUPT;
+#else
+ in.sa_flags = 0;
+#endif
+
+ return (sigaction(sig, &in, &out) ? (SignalHandlerFunc) -1 :
+ (SignalHandlerFunc) out.sa_handler);
+#else /* !HAVE_DECL_SIGACTION */
+ return (SignalHandlerFunc) -1;
+#endif /* HAVE_DECL_SIGACTION */
+}
+
+