Module signals 

This module provides a way to handle signals in a platform-independent way. It provides a way to convert signal names to their corresponding values and vice versa. It also provides a way to ignore the SIGINT signal and enable pipe errors.

Macros

init_startup_state_capture

Initializes startup state capture. Call once at crate root level.

Statics

ALL_SIGNALS

The list of all signals.

DEFAULT_SIGNAL

The default signal value.

Functions

capture_startup_state^⚠

Captures stdio and SIGPIPE state at process initialization, before main() runs.

disable_pipe_errors

Ignores SIGPIPE signal (broken pipe errors are returned instead of terminating). Use this to override the default SIGPIPE handling when you need to handle broken pipe errors gracefully (e.g., tee with –output-error).

enable_pipe_errors

Restores SIGPIPE to default behavior (process terminates on broken pipe).

ensure_stdout_not_broken

ignore_interrupts

Ignores the SIGINT signal.

install_signal_handler

Installs a signal handler. The handler must be async-signal-safe.

is_signal

Returns true if the given number is a valid signal number.

signal_by_name_or_value

Returns the signal number for a given signal name or value.

signal_list_name_by_value

Returns the signal name for list-style interfaces.

signal_list_value_by_name_or_number

Returns the signal value for list-style interfaces.

signal_name_by_value

Returns the signal name for a given signal value.

signal_number_upper_bound

Returns the largest signal number that list-style interfaces should accept.

sigpipe_was_ignored

Returns whether SIGPIPE was ignored at process startup.

stderr_was_closed

stdin_was_closed

stdout_was_closed