Struct LINUX_SIGACTION

pub struct LINUX_SIGACTION;

Available on crate feature linux only.

Linux flag constants for LinuxSigaction.

Implementations

impl LINUX_SIGACTION

pub const SA_NOCLDSTOP: usize = 1usize

If signum is SIGCHLD, do not receive notification when child processes stop (i.e., when they receive one of SIGSTOP, SIGTSTP, SIGTTIN, or SIGTTOU) or resume (i.e., they receive SIGCONT) (see wait(2)).

This flag is meaningful only when establishing a handler for SIGCHLD.

pub const SA_NOCLDWAIT: usize = 2usize

If signum is SIGCHLD, do not transform children into zombies when they terminate.

See also waitpid(2).

This flag is meaningful only when establishing a handler for SIGCHLD, or when setting that signal’s disposition to SIG_DFL.

(since Linux 2.6)

pub const SA_NODEFER: usize = 1_073_741_824usize

If the SA_NOCLDWAIT flag is set when establishing a handler for SIGCHLD, POSIX.1 leaves it unspecified whether a SIGCHLD signal is generated when a child process terminates.

On Linux, a SIGCHLD signal is generated in this case; on some other implementations, it is not.

Do not add the signal to the thread’s signal mask while the handler is executing, unless the signal is specified in act.sa_mask. Consequently, a further instance of the signal may be delivered to the thread while it is executing the handler. This flag is meaningful only when establishing a signal handler.

SA_NOMASK is an obsolete, nonstandard synonym for this flag.

pub const SA_ONSTACK: usize = 134_217_728usize

Call the signal handler on an alternate signal stack provided by sigaltstack(2).

If an alternate stack is not available, the default stack will be used. This flag is meaningful only when establishing a signal handler.

pub const SA_RESETHAND: usize = 2_147_483_648usize

Restore the signal action to the default upon entry to the signal handler.

This flag is meaningful only when establishing a signal handler.

SA_ONESHOT is an obsolete, nonstandard synonym for this flag.

pub const SA_RESTART: usize = 268_435_456usize

Provide behavior compatible with BSD signal semantics by making certain system calls restartable across signals. This flag is meaningful only when establishing a signal handler. See signal(7) for a discussion of system call restarting.

pub const SA_RESTORER: usize = 67_108_864usize

Not intended for application use.

This flag is used by C libraries to indicate that the sa_restorer field contains the address of a “signal trampoline”. See sigreturn(2) for more details.

pub const SA_SIGINFO: usize = 4usize

The signal handler takes three arguments, not one.

In this case, sa_sigaction should be set instead of sa_handler.

This flag is meaningful only when establishing a signal handler.

(since Linux 2.2)