diff options
Diffstat (limited to 'posix')
| -rw-r--r-- | posix/sys/wait.h | 61 | ||||
| -rw-r--r-- | posix/wait.c | 2 | ||||
| -rw-r--r-- | posix/wait3.c | 2 | ||||
| -rw-r--r-- | posix/wait4.c | 3 |
4 files changed, 14 insertions, 54 deletions
diff --git a/posix/sys/wait.h b/posix/sys/wait.h index a673b41..acda43a 100644 --- a/posix/sys/wait.h +++ b/posix/sys/wait.h @@ -34,62 +34,23 @@ __BEGIN_DECLS bits to `waitpid', `wait3', and `wait4'. */ # include <bits/waitflags.h> -# ifdef __USE_MISC - -/* Lots of hair to allow traditional BSD use of `union wait' - as well as POSIX.1 use of `int' for the status word. */ - -# if defined __GNUC__ && !defined __cplusplus -# define __WAIT_INT(status) \ - (__extension__ (((union { __typeof(status) __in; int __i; }) \ - { .__in = (status) }).__i)) -# else -# define __WAIT_INT(status) (*(const int *) &(status)) -# endif - -/* This is the type of the argument to `wait'. The funky union - causes redeclarations with either `int *' or `union wait *' to be - allowed without complaint. __WAIT_STATUS_DEFN is the type used in - the actual function definitions. */ - -# if !defined __GNUC__ || __GNUC__ < 2 || defined __cplusplus -# define __WAIT_STATUS void * -# define __WAIT_STATUS_DEFN void * -# else -/* This works in GCC 2.6.1 and later. */ -typedef union - { - union wait *__uptr; - int *__iptr; - } __WAIT_STATUS __attribute__ ((__transparent_union__)); -# define __WAIT_STATUS_DEFN int * -# endif - -# else /* Don't use misc. */ - -# define __WAIT_INT(status) (status) -# define __WAIT_STATUS int * -# define __WAIT_STATUS_DEFN int * - -# endif /* Use misc. */ - /* This will define all the `__W*' macros. */ # include <bits/waitstatus.h> -# define WEXITSTATUS(status) __WEXITSTATUS (__WAIT_INT (status)) -# define WTERMSIG(status) __WTERMSIG (__WAIT_INT (status)) -# define WSTOPSIG(status) __WSTOPSIG (__WAIT_INT (status)) -# define WIFEXITED(status) __WIFEXITED (__WAIT_INT (status)) -# define WIFSIGNALED(status) __WIFSIGNALED (__WAIT_INT (status)) -# define WIFSTOPPED(status) __WIFSTOPPED (__WAIT_INT (status)) +# define WEXITSTATUS(status) __WEXITSTATUS (status) +# define WTERMSIG(status) __WTERMSIG (status) +# define WSTOPSIG(status) __WSTOPSIG (status) +# define WIFEXITED(status) __WIFEXITED (status) +# define WIFSIGNALED(status) __WIFSIGNALED (status) +# define WIFSTOPPED(status) __WIFSTOPPED (status) # ifdef __WIFCONTINUED -# define WIFCONTINUED(status) __WIFCONTINUED (__WAIT_INT (status)) +# define WIFCONTINUED(status) __WIFCONTINUED (status) # endif #endif /* <stdlib.h> not included. */ #ifdef __USE_MISC # define WCOREFLAG __WCOREFLAG -# define WCOREDUMP(status) __WCOREDUMP (__WAIT_INT (status)) +# define WCOREDUMP(status) __WCOREDUMP (status) # define W_EXITCODE(ret, sig) __W_EXITCODE (ret, sig) # define W_STOPCODE(sig) __W_STOPCODE (sig) #endif @@ -110,7 +71,7 @@ typedef enum This function is a cancellation point and therefore not marked with __THROW. */ -extern __pid_t wait (__WAIT_STATUS __stat_loc); +extern __pid_t wait (int *__stat_loc); #ifdef __USE_MISC /* Special values for the PID argument to `waitpid' and `wait4'. */ @@ -170,13 +131,13 @@ struct rusage; nil, store information about the child's resource usage there. If the WUNTRACED bit is set in OPTIONS, return status for stopped children; otherwise don't. */ -extern __pid_t wait3 (__WAIT_STATUS __stat_loc, int __options, +extern __pid_t wait3 (int *__stat_loc, int __options, struct rusage * __usage) __THROWNL; #endif #ifdef __USE_MISC /* PID is like waitpid. Other args are like wait3. */ -extern __pid_t wait4 (__pid_t __pid, __WAIT_STATUS __stat_loc, int __options, +extern __pid_t wait4 (__pid_t __pid, int *__stat_loc, int __options, struct rusage *__usage) __THROWNL; #endif /* Use misc. */ diff --git a/posix/wait.c b/posix/wait.c index 3abf30e..c49375b 100644 --- a/posix/wait.c +++ b/posix/wait.c @@ -21,7 +21,7 @@ /* Wait for a child to die. When one does, put its status in *STAT_LOC and return its process ID. For errors, return (pid_t) -1. */ __pid_t -__wait (__WAIT_STATUS_DEFN stat_loc) +__wait (int *stat_loc) { __set_errno (ENOSYS); return -1; diff --git a/posix/wait3.c b/posix/wait3.c index 356839a..e8c2930 100644 --- a/posix/wait3.c +++ b/posix/wait3.c @@ -25,7 +25,7 @@ there. If the WUNTRACED bit is set in OPTIONS, return status for stopped children; otherwise don't. */ pid_t -__wait3 (__WAIT_STATUS_DEFN stat_loc, int options, struct rusage *usage) +__wait3 (int *stat_loc, int options, struct rusage *usage) { if ((options & ~(WNOHANG|WUNTRACED)) != 0) { diff --git a/posix/wait4.c b/posix/wait4.c index e5b0376..4137617 100644 --- a/posix/wait4.c +++ b/posix/wait4.c @@ -20,8 +20,7 @@ #include <errno.h> pid_t -__wait4 (__pid_t pid, __WAIT_STATUS stat_loc, int options, - struct rusage *usage) +__wait4 (__pid_t pid, int *stat_loc, int options, struct rusage *usage) { __set_errno (ENOSYS); return (pid_t) -1; |