kaguya
45 lines
983 B
C++
45 lines
983 B
C++
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#include <bits/ensure.h>
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#include <errno.h>
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#include <signal.h>
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#include <mlibc/debug.hpp>
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#include <mlibc/ansi-sysdeps.hpp>
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__sighandler signal(int sn, __sighandler handler) {
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struct sigaction sa;
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sa.sa_handler = handler;
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sa.sa_flags = 0;
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sigemptyset(&sa.sa_mask);
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struct sigaction old;
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MLIBC_CHECK_OR_ENOSYS(mlibc::sys_sigaction, SIG_ERR);
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if(int e = mlibc::sys_sigaction(sn, &sa, &old)){
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errno = e;
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return SIG_ERR;
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}
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return old.sa_handler;
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}
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int raise(int sig) {
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MLIBC_CHECK_OR_ENOSYS(mlibc::sys_getpid && mlibc::sys_kill, -1);
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pid_t pid = mlibc::sys_getpid();
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if (int e = mlibc::sys_kill(pid, sig)) {
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errno = e;
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return -1;
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}
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return 0;
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}
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// This is a POSIX extension, but we have it in here for sigsetjmp
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int sigprocmask(int how, const sigset_t *__restrict set, sigset_t *__restrict retrieve) {
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MLIBC_CHECK_OR_ENOSYS(mlibc::sys_sigprocmask, -1);
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if(int e = mlibc::sys_sigprocmask(how, set, retrieve); e) {
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errno = e;
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return -1;
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}
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return 0;
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}
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