mirror of
https://github.com/RGBCube/serenity
synced 2025-07-26 06:17:34 +00:00
Libraries: Create top level directory for libraries.
Things were getting a little crowded in the project root, so this patch moves the Lib*/ directories into Libraries/.
This commit is contained in:
parent
63814ffebf
commit
04b9dc2d30
328 changed files with 36 additions and 36 deletions
163
Libraries/LibC/signal.cpp
Normal file
163
Libraries/LibC/signal.cpp
Normal file
|
@ -0,0 +1,163 @@
|
|||
#include <Kernel/Syscall.h>
|
||||
#include <assert.h>
|
||||
#include <errno.h>
|
||||
#include <setjmp.h>
|
||||
#include <signal.h>
|
||||
#include <stdio.h>
|
||||
#include <unistd.h>
|
||||
|
||||
extern "C" {
|
||||
|
||||
int kill(pid_t pid, int sig)
|
||||
{
|
||||
int rc = syscall(SC_kill, pid, sig);
|
||||
__RETURN_WITH_ERRNO(rc, rc, -1);
|
||||
}
|
||||
|
||||
int killpg(int pgrp, int sig)
|
||||
{
|
||||
int rc = syscall(SC_killpg, pgrp, sig);
|
||||
__RETURN_WITH_ERRNO(rc, rc, -1);
|
||||
}
|
||||
|
||||
int raise(int sig)
|
||||
{
|
||||
// FIXME: Support multi-threaded programs.
|
||||
return kill(getpid(), sig);
|
||||
}
|
||||
|
||||
sighandler_t signal(int signum, sighandler_t handler)
|
||||
{
|
||||
struct sigaction new_act;
|
||||
struct sigaction old_act;
|
||||
new_act.sa_handler = handler;
|
||||
new_act.sa_flags = 0;
|
||||
new_act.sa_mask = 0;
|
||||
int rc = sigaction(signum, &new_act, &old_act);
|
||||
if (rc < 0)
|
||||
return SIG_ERR;
|
||||
return old_act.sa_handler;
|
||||
}
|
||||
|
||||
int sigaction(int signum, const struct sigaction* act, struct sigaction* old_act)
|
||||
{
|
||||
int rc = syscall(SC_sigaction, signum, act, old_act);
|
||||
__RETURN_WITH_ERRNO(rc, rc, -1);
|
||||
}
|
||||
|
||||
int sigemptyset(sigset_t* set)
|
||||
{
|
||||
*set = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sigfillset(sigset_t* set)
|
||||
{
|
||||
*set = 0xffffffff;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sigaddset(sigset_t* set, int sig)
|
||||
{
|
||||
if (sig < 1 || sig > 32) {
|
||||
errno = EINVAL;
|
||||
return -1;
|
||||
}
|
||||
*set |= 1 << (sig);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sigdelset(sigset_t* set, int sig)
|
||||
{
|
||||
if (sig < 1 || sig > 32) {
|
||||
errno = EINVAL;
|
||||
return -1;
|
||||
}
|
||||
*set &= ~(1 << (sig));
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sigismember(const sigset_t* set, int sig)
|
||||
{
|
||||
if (sig < 1 || sig > 32) {
|
||||
errno = EINVAL;
|
||||
return -1;
|
||||
}
|
||||
if (*set & (1 << (sig)))
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sigprocmask(int how, const sigset_t* set, sigset_t* old_set)
|
||||
{
|
||||
int rc = syscall(SC_sigprocmask, how, set, old_set);
|
||||
__RETURN_WITH_ERRNO(rc, rc, -1);
|
||||
}
|
||||
|
||||
int sigpending(sigset_t* set)
|
||||
{
|
||||
int rc = syscall(SC_sigpending, set);
|
||||
__RETURN_WITH_ERRNO(rc, rc, -1);
|
||||
}
|
||||
|
||||
const char* sys_siglist[NSIG] = {
|
||||
"Invalid signal number",
|
||||
"Hangup",
|
||||
"Interrupt",
|
||||
"Quit",
|
||||
"Illegal instruction",
|
||||
"Trap",
|
||||
"Aborted",
|
||||
"Bus error",
|
||||
"Division by zero",
|
||||
"Killed",
|
||||
"User signal 1",
|
||||
"Segmentation violation",
|
||||
"User signal 2",
|
||||
"Broken pipe",
|
||||
"Alarm clock",
|
||||
"Terminated",
|
||||
"Stack fault",
|
||||
"Child exited",
|
||||
"Continued",
|
||||
"Stopped (signal)",
|
||||
"Stopped",
|
||||
"Stopped (tty input)",
|
||||
"Stopped (tty output)",
|
||||
"Urgent I/O condition)",
|
||||
"CPU limit exceeded",
|
||||
"File size limit exceeded",
|
||||
"Virtual timer expired",
|
||||
"Profiling timer expired",
|
||||
"Window changed",
|
||||
"I/O possible",
|
||||
"Power failure",
|
||||
"Bad system call",
|
||||
};
|
||||
|
||||
int sigsetjmp(jmp_buf env, int savesigs)
|
||||
{
|
||||
if (savesigs) {
|
||||
int rc = sigprocmask(0, nullptr, &env->saved_signal_mask);
|
||||
assert(rc == 0);
|
||||
env->did_save_signal_mask = true;
|
||||
} else {
|
||||
env->did_save_signal_mask = false;
|
||||
}
|
||||
return setjmp(env);
|
||||
}
|
||||
void siglongjmp(jmp_buf env, int val)
|
||||
{
|
||||
if (env->did_save_signal_mask) {
|
||||
int rc = sigprocmask(SIG_SETMASK, &env->saved_signal_mask, nullptr);
|
||||
assert(rc == 0);
|
||||
}
|
||||
longjmp(env, val);
|
||||
}
|
||||
|
||||
int sigsuspend(const sigset_t*)
|
||||
{
|
||||
dbgprintf("FIXME: Implement sigsuspend()\n");
|
||||
ASSERT_NOT_REACHED();
|
||||
}
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue