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- /* sys/wait.h
-
- Copyright 1997, 1998, 2001 Red Hat, Inc.
-
- This file is part of Cygwin.
-
- This software is a copyrighted work licensed under the terms of the
- Cygwin license. Please consult the file "CYGWIN_LICENSE" for
- details. */
-
- #ifndef _SYS_WAIT_H
- #define _SYS_WAIT_H
-
- #include <sys/types.h>
- #include <sys/resource.h>
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- #define WNOHANG 1
- #define WUNTRACED 2
-
- /* A status looks like:
- <2 bytes info> <2 bytes code>
-
- <code> == 0, child has exited, info is the exit value
- <code> == 1..7e, child has exited, info is the signal number.
- <code> == 7f, child has stopped, info was the signal number.
- <code> == 80, there was a core dump.
- */
-
- #define WIFEXITED(w) (((w) & 0xff) == 0)
- #define WIFSIGNALED(w) (((w) & 0x7f) > 0 && (((w) & 0x7f) < 0x7f))
- #define WIFSTOPPED(w) (((w) & 0xff) == 0x7f)
- #define WEXITSTATUS(w) (((w) >> 8) & 0xff)
- #define WTERMSIG(w) ((w) & 0x7f)
- #define WSTOPSIG WEXITSTATUS
-
- pid_t wait (int *);
- pid_t waitpid (pid_t, int *, int);
- pid_t wait3 (int *__status, int __options, struct rusage *__rusage);
- pid_t wait4 (pid_t __pid, int *__status, int __options, struct rusage *__rusage);
-
- union wait
- {
- int w_status;
- struct
- {
- unsigned int __w_termsig:7; /* Terminating signal. */
- unsigned int __w_coredump:1; /* Set if dumped core. */
- unsigned int __w_retcode:8; /* Return code if exited normally. */
- unsigned int:16;
- } __wait_terminated;
- struct
- {
- unsigned int __w_stopval:8; /* W_STOPPED if stopped. */
- unsigned int __w_stopsig:8; /* Stopping signal. */
- unsigned int:16;
- } __wait_stopped;
- };
-
- #define w_termsig __wait_terminated.__w_termsig
- #define w_coredump __wait_terminated.__w_coredump
- #define w_retcode __wait_terminated.__w_retcode
- #define w_stopsig __wait_stopped.__w_stopsig
- #define w_stopval __wait_stopped.__w_stopval
-
- #ifdef __cplusplus
- };
- #endif
-
- #endif
-