POSIX Signals
Syntax
- unsigned alarm(unsigned seconds);
- int kill(pid_t pid, int sig);
Parameters
| Function, Parameter(s), Return Value | Description |
|---|---|
alarm() | function name |
unsigned seconds | Seconds to raise an alarm or 0 to cancel any pending alarm |
| >= 0 | 0 if no other alarm was pending, else the number of seconds the pending alarm still had open. This function won't fail. |
| - | - |
kill() | function name |
pid_t pid | . |
int sig | 0 or signal ID |
| 0, -1 | On success 0 is returned, -1 on failure with setting errno to EINVAL, EPERMor ESRCH. |
