source: libcfa/src/bits/signal.hfa @ aec68b6

arm-ehjacob/cs343-translationnew-ast-unique-expr
Last change on this file since aec68b6 was c1ee231, checked in by Peter A. Buhr <pabuhr@…>, 18 months ago

remove extern "C" from include files protected in CFA stdhdr directory

  • Property mode set to 100644
File size: 1.7 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// bits/signal.hfa -- Helper functions and defines to use signals
8//
9// Author           : Thierry Delisle
10// Created On       : Thu Jan 25 16:06:29 2018
11// Last Modified By :
12// Last Modified On :
13// Update Count     :
14//
15
16#pragma once
17
18#include "bits/debug.hfa"
19#include "bits/defs.hfa"
20
21#include <errno.h>
22#define __USE_GNU
23#include <signal.h>
24#undef __USE_GNU
25#include <stdlib.h>
26#include <string.h>
27
28// Short hands for signal context information
29#define __CFA_SIGCXT__ ucontext_t *
30#define __CFA_SIGPARMS__ __attribute__((unused)) int sig, __attribute__((unused)) siginfo_t *sfp, __attribute__((unused)) __CFA_SIGCXT__ cxt
31
32// Sigaction wrapper : register an signal handler
33static void __cfaabi_sigaction( int sig, void (*handler)(__CFA_SIGPARMS__), int flags ) {
34        struct sigaction act;
35
36        act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
37        sigemptyset( &act.sa_mask );
38        sigaddset( &act.sa_mask, SIGALRM );             // disabled during signal handler
39        sigaddset( &act.sa_mask, SIGUSR1 );
40        sigaddset( &act.sa_mask, SIGSEGV );
41        sigaddset( &act.sa_mask, SIGBUS );
42        sigaddset( &act.sa_mask, SIGILL );
43        sigaddset( &act.sa_mask, SIGFPE );
44        sigaddset( &act.sa_mask, SIGHUP );              // revert to default on second delivery
45        sigaddset( &act.sa_mask, SIGTERM );
46        sigaddset( &act.sa_mask, SIGINT );
47        act.sa_flags = flags;
48
49        if ( sigaction( sig, &act, 0p ) == -1 ) {
50                __cfaabi_dbg_print_buffer_decl(
51                        " __cfaabi_sigaction( sig:%d, handler:%p, flags:%d ), problem installing signal handler, error(%d) %s.\n",
52                        sig, handler, flags, errno, strerror( errno )
53                );
54                _Exit( EXIT_FAILURE );
55        } // if
56}
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