pcntl_alarm()

pcntl_alarm()

function pcntl_alarm(int $seconds): int

Schedules a SIGALRM and returns the prior alarm’s remaining seconds.

Parameters:

• $seconds (int)

Returns: int

Availability

• Compiled (AOT): supported on the three executable/release hosts (macOS ARM64, Linux ARM64, and Linux x86_64); calls are refused at compile time for iOS library targets.
• eval() (magician interpreter): supported — declarative interpreter builtin (crates/elephc-magician/src/interpreter/builtins/pcntl/pcntl_alarm.rs).

No examples yet — check examples/ and showcases/ for usage patterns.

Internals

For how pcntl_alarm is implemented in the compiler, see the internals page.