logos.std.os.unix.signal

fn block(signum: i32) -> i32

Blocks delivery of signum in the current thread’s signal mask; returns 0 on success.

fn ignore(signum: i32) -> void

Sets the disposition of signum to ignore (SIG_IGN).

fn install(signum: i32, handler: *const u8) -> *const u8

Installs a signal handler for signum and returns the previous handler pointer. handler must be a fn(i32) function pointer (cast via as *const u8), or the SIG_DFL()/SIG_IGN() sentinels. Handlers run asynchronously: async-signal-safe code only.

fn raise_self(signum: i32) -> i32

Sends signum to the calling thread via raise(2); returns 0 on success, nonzero on error.

fn reset_default(signum: i32) -> void

Restores the default action (SIG_DFL) for signum.

fn schedule_alarm(seconds: u32) -> u32

Schedules a SIGALRM after seconds seconds; seconds == 0 cancels any pending alarm. Returns seconds remaining on a previously scheduled alarm, or 0 if none.

fn send_signal(pid: i32, signum: i32) -> i32

Sends signum to process pid via kill(2); returns 0 on success, -1 on error.

fn SIG_BLOCK() -> i32

Returns the sigprocmask how value that adds the given set to the blocked mask.

fn SIG_DFL() -> i64

Returns the default-action handler sentinel; cast via as *const u8 for install.

fn SIG_IGN() -> i64

Returns the ignore-signal handler sentinel; cast via as *const u8 for install.

fn SIG_SETMASK() -> i32

Returns the sigprocmask how value that replaces the blocked mask with the given set.

fn SIG_UNBLOCK() -> i32

Returns the sigprocmask how value that removes the given set from the blocked mask.

fn SIGABRT() -> i32

Returns the Linux SIGABRT signal number (abort).

fn SIGALRM() -> i32

Returns the Linux SIGALRM signal number (timer set by schedule_alarm expired).

fn SIGCHLD() -> i32

Returns the Linux SIGCHLD signal number (child stopped or terminated).

fn SIGCONT() -> i32

Returns the Linux SIGCONT signal number (continue if stopped).

fn SIGFPE() -> i32

Returns the Linux SIGFPE signal number (erroneous arithmetic operation).

fn SIGHUP() -> i32

Returns the Linux SIGHUP signal number (terminal hangup).

fn SIGILL() -> i32

Returns the Linux SIGILL signal number (illegal instruction).

fn SIGINT() -> i32

Returns the Linux SIGINT signal number (keyboard interrupt, Ctrl-C).

fn SIGKILL() -> i32

Returns the Linux SIGKILL signal number (kill); cannot be caught, blocked, or ignored.

fn SIGPIPE() -> i32

Returns the Linux SIGPIPE signal number (write to a pipe with no readers).

fn SIGQUIT() -> i32

Returns the Linux SIGQUIT signal number (keyboard quit, Ctrl-).

fn SIGSEGV() -> i32

Returns the Linux SIGSEGV signal number (invalid memory reference).

fn SIGSTOP() -> i32

Returns the Linux SIGSTOP signal number (stop process); cannot be caught, blocked, or ignored.

fn SIGTERM() -> i32

Returns the Linux SIGTERM signal number (termination request).

fn SIGUSR1() -> i32

Returns the Linux SIGUSR1 signal number (user-defined signal 1).

fn SIGUSR2() -> i32

Returns the Linux SIGUSR2 signal number (user-defined signal 2).

fn unblock(signum: i32) -> i32

Unblocks delivery of signum in the current thread’s signal mask; returns 0 on success.