diff options
| -rw-r--r-- | Userland/Libraries/LibC/signal.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Userland/Libraries/LibC/signal.cpp b/Userland/Libraries/LibC/signal.cpp index 603f09c07f..abbab504a4 100644 --- a/Userland/Libraries/LibC/signal.cpp +++ b/Userland/Libraries/LibC/signal.cpp @@ -16,24 +16,28 @@ extern "C" { +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/kill.html int kill(pid_t pid, int sig) { int rc = syscall(SC_kill, pid, sig); __RETURN_WITH_ERRNO(rc, rc, -1); } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/killpg.html int killpg(int pgrp, int sig) { int rc = syscall(SC_killpg, pgrp, sig); __RETURN_WITH_ERRNO(rc, rc, -1); } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/raise.html int raise(int sig) { // FIXME: Support multi-threaded programs. return kill(getpid(), sig); } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/signal.html sighandler_t signal(int signum, sighandler_t handler) { struct sigaction new_act; @@ -47,24 +51,28 @@ sighandler_t signal(int signum, sighandler_t handler) return old_act.sa_handler; } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigaction.html 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); } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigemptyset.html int sigemptyset(sigset_t* set) { *set = 0; return 0; } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigfillset.html int sigfillset(sigset_t* set) { *set = 0xffffffff; return 0; } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigaddset.html int sigaddset(sigset_t* set, int sig) { if (sig < 1 || sig > 32) { @@ -75,12 +83,14 @@ int sigaddset(sigset_t* set, int sig) return 0; } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigaltstack.html int sigaltstack(const stack_t* ss, stack_t* old_ss) { int rc = syscall(SC_sigaltstack, ss, old_ss); __RETURN_WITH_ERRNO(rc, rc, -1); } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigdelset.html int sigdelset(sigset_t* set, int sig) { if (sig < 1 || sig > 32) { @@ -91,6 +101,7 @@ int sigdelset(sigset_t* set, int sig) return 0; } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigismember.html int sigismember(const sigset_t* set, int sig) { if (sig < 1 || sig > 32) { @@ -102,12 +113,14 @@ int sigismember(const sigset_t* set, int sig) return 0; } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigprocmask.html 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); } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigpending.html int sigpending(sigset_t* set) { int rc = syscall(SC_sigpending, set); @@ -149,6 +162,7 @@ const char* sys_siglist[NSIG] = { "Bad system call", }; +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/siglongjmp.html void siglongjmp(jmp_buf env, int val) { if (env->did_save_signal_mask) { @@ -158,6 +172,7 @@ void siglongjmp(jmp_buf env, int val) longjmp(env, val); } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigsuspend.html int sigsuspend(const sigset_t* set) { return pselect(0, nullptr, nullptr, nullptr, nullptr, set); @@ -180,6 +195,7 @@ int sigwaitinfo(sigset_t const* set, siginfo_t* info) return sigtimedwait(set, info, nullptr); } +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigtimedwait.html int sigtimedwait(sigset_t const* set, siginfo_t* info, struct timespec const* timeout) { int rc = syscall(Syscall::SC_sigtimedwait, set, info, timeout); |