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siginterrupt.c (1574) siginterrupt.c (17141)
1/*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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36#endif /* LIBC_SCCS and not lint */
37
38#include <signal.h>
39
40/*
41 * Set signal state to prevent restart of system calls
42 * after an instance of the indicated signal.
43 */
1/*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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36#endif /* LIBC_SCCS and not lint */
37
38#include <signal.h>
39
40/*
41 * Set signal state to prevent restart of system calls
42 * after an instance of the indicated signal.
43 */
44int
44siginterrupt(sig, flag)
45 int sig, flag;
46{
47 extern sigset_t _sigintr;
48 struct sigaction sa;
49 int ret;
50
51 if ((ret = sigaction(sig, (struct sigaction *)0, &sa)) < 0)
52 return (ret);
53 if (flag) {
54 sigaddset(&_sigintr, sig);
55 sa.sa_flags &= ~SA_RESTART;
56 } else {
57 sigdelset(&_sigintr, sig);
58 sa.sa_flags |= SA_RESTART;
59 }
60 return (sigaction(sig, &sa, (struct sigaction *)0));
61}
45siginterrupt(sig, flag)
46 int sig, flag;
47{
48 extern sigset_t _sigintr;
49 struct sigaction sa;
50 int ret;
51
52 if ((ret = sigaction(sig, (struct sigaction *)0, &sa)) < 0)
53 return (ret);
54 if (flag) {
55 sigaddset(&_sigintr, sig);
56 sa.sa_flags &= ~SA_RESTART;
57 } else {
58 sigdelset(&_sigintr, sig);
59 sa.sa_flags |= SA_RESTART;
60 }
61 return (sigaction(sig, &sa, (struct sigaction *)0));
62}