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library_signals.js
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189 lines (179 loc) · 4.5 KB
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/**
* @license
* Copyright 2014 The Emscripten Authors
* SPDX-License-Identifier: MIT
*/
// 'use strict'
var funs = {
_sigalrm_handler: 0,
signal__deps: ['_sigalrm_handler'],
signal: function(sig, func) {
if (sig == {{{ cDefine('SIGALRM') }}}) {
__sigalrm_handler = func;
} else {
#if ASSERTIONS
err('Calling stub instead of signal()');
#endif
}
return 0;
},
bsd_signal__sig: 'iii',
bsd_signal: 'signal',
sigemptyset: function(set) {
{{{ makeSetValue('set', '0', '0', 'i32') }}};
return 0;
},
sigfillset: function(set) {
{{{ makeSetValue('set', '0', '-1>>>0', 'i32') }}};
return 0;
},
sigaddset: function(set, signum) {
{{{ makeSetValue('set', '0', makeGetValue('set', '0', 'i32') + '| (1 << (signum-1))', 'i32') }}};
return 0;
},
sigdelset: function(set, signum) {
{{{ makeSetValue('set', '0', makeGetValue('set', '0', 'i32') + '& (~(1 << (signum-1)))', 'i32') }}};
return 0;
},
sigismember: function(set, signum) {
return {{{ makeGetValue('set', '0', 'i32') }}} & (1 << (signum-1));
},
sigaction: function(signum, act, oldact) {
//int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact);
#if ASSERTIONS
err('Calling stub instead of sigaction()');
#endif
return 0;
},
sigprocmask: function() {
#if ASSERTIONS
err('Calling stub instead of sigprocmask()');
#endif
return 0;
},
// pthread_sigmask - examine and change mask of blocked signals
pthread_sigmask: function(how, set, oldset) {
err('pthread_sigmask() is not supported: this is a no-op.');
return 0;
},
__libc_current_sigrtmin: function() {
#if ASSERTIONS
err('Calling stub instead of __libc_current_sigrtmin');
#endif
return 0;
},
__libc_current_sigrtmax: function() {
#if ASSERTIONS
err('Calling stub instead of __libc_current_sigrtmax');
#endif
return 0;
},
kill__deps: ['$ERRNO_CODES', '$setErrNo'],
kill: function(pid, sig) {
// http://pubs.opengroup.org/onlinepubs/000095399/functions/kill.html
// Makes no sense in a single-process environment.
// Should kill itself somtimes depending on `pid`
#if ASSERTIONS
err('Calling stub instead of kill()');
#endif
setErrNo(ERRNO_CODES.EPERM);
return -1;
},
killpg__deps: ['$ERRNO_CODES', '$setErrNo'],
killpg: function() {
#if ASSERTIONS
err('Calling stub instead of killpg()');
#endif
setErrNo(ERRNO_CODES.EPERM);
return -1;
},
siginterrupt: function() {
#if ASSERTIONS
err('Calling stub instead of siginterrupt()');
#endif
return 0;
},
raise__deps: ['$ERRNO_CODES', '$setErrNo'],
raise: function(sig) {
#if ASSERTIONS
err('Calling stub instead of raise()');
#endif
setErrNo(ERRNO_CODES.ENOSYS);
#if ASSERTIONS
warnOnce('raise() returning an error as we do not support it');
#endif
return -1;
},
// http://pubs.opengroup.org/onlinepubs/000095399/functions/alarm.html
alarm__deps: ['_sigalrm_handler'],
alarm: function(seconds) {
setTimeout(function() {
if (__sigalrm_handler) {{{ makeDynCall('vi', '__sigalrm_handler') }}}(0);
}, seconds*1000);
},
ualarm: function() {
throw 'ualarm() is not implemented yet';
},
setitimer: function() {
throw 'setitimer() is not implemented yet';
},
getitimer: function() {
throw 'getitimer() is not implemented yet';
},
pause__deps: ['$setErrNo', '$ERRNO_CODES'],
pause: function() {
// int pause(void);
// http://pubs.opengroup.org/onlinepubs/000095399/functions/pause.html
// We don't support signals, so we return immediately.
#if ASSERTIONS
err('Calling stub instead of pause()');
#endif
setErrNo(ERRNO_CODES.EINTR);
return -1;
},
sigpending: function(set) {
{{{ makeSetValue('set', 0, 0, 'i32') }}};
return 0;
},
sigwait: function(set, sig) {
// POSIX SIGNALS are not supported
// if set contains an invalid signal number, EINVAL is returned
// in our case we return EINVAL all the time
#if ASSERTIONS
err('Calling stub instead of sigwait()');
#endif
return {{{ cDefine('EINVAL') }}};
}
//signalfd
//ppoll
//epoll_pwait
//pselect
//sigvec
//sigmask
//sigblock
//sigsetmask
//siggetmask
//sigsuspend
//siginterrupt
//sigqueue
//sysv_signal
//signal
//pthread_kill
//gsignal
//ssignal
//psignal
//psiginfo
//sigpause
//sigisemptyset
//sigtimedwait
//sigwaitinfo
//sigreturn
//sigstack
//sigaltstack(2)
//sigsetops(3),
//sighold
//sigrelse
//sigignore
//sigset
};
mergeInto(LibraryManager.library, funs);