diff options
Diffstat (limited to 'nuttx/include/signal.h')
| -rw-r--r-- | nuttx/include/signal.h | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/nuttx/include/signal.h b/nuttx/include/signal.h index 30726105b..a02170242 100644 --- a/nuttx/include/signal.h +++ b/nuttx/include/signal.h @@ -61,14 +61,17 @@ /* All signals are "real time" signals */ -#define SIGRTMIN 0 /* First real time signal */ -#define SIGRTMAX 31 /* Last real time signal */ +#define SIGRTMIN MIN_SIGNO /* First real time signal */ +#define SIGRTMAX MAX_SIGNO /* Last real time signal */ /* A few of the real time signals are used within the OS. They have * default values that can be overridden from the configuration file. The * rest are all user signals. * - * These are semi-standard signal definitions: + * The signal number zero is wasted for the most part. It is a valid + * signal number, but has special meaning at many interfaces (e.g., Kill()). + * + * These are the semi-standard signal definitions: */ #ifndef CONFIG_SIG_SIGUSR1 @@ -126,11 +129,13 @@ /* struct sigaction flag values */ -#define SA_NOCLDSTOP 1 /* Do not generate SIGCHILD when - * children stop (ignored) */ -#define SA_SIGINFO 2 /* Invoke the signal-catching function - * with 3 args instead of 1 - * (always assumed) */ +#define SA_NOCLDSTOP (1 << 0) /* Do not generate SIGCHILD when + * children stop (ignored) */ +#define SA_SIGINFO (1 << 1) /* Invoke the signal-catching function + * with 3 args instead of 1 + * (always assumed) */ +#define SA_NOCLDWAIT (1 << 2) /* If signo=SIGCHLD, exit status of child + * processes will be discarded */ /* These are the possible values of the signfo si_code field */ |