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mirror of git://sourceware.org/git/newlib-cygwin.git synced 2025-01-15 11:00:04 +08:00
Jeff Johnston 199359f062 2000-08-23 Werner Almesberger <Werner.Almesberger@epfl.ch>
* libc/stdlib/abort.c: changed description: uses "raise" instead of
        "getpid" and "kill"; added: uses "write" and "_exit".
        Also included unistd.h for "_exit" prototype.
        * libc/stdlib/system.c: included unistd.h for "execve" prototype,
        reent.h for "_fork_r" and "_wait_r" prototypes.
        (do_system): changed  extern char *environ[] to POSIX-friendly
        extern char **environ.
        * libc/stdlib/wctomb_r.c: included string.h for "strlen" and "strcmp"
        prototypes.
        * libc/stdlib/remove.c: included reent.h for "_unlink_r" prototype.
        * libc/reent/execr.c: included sys/wait.h for "wait" prototype.
        * libc/reent/fstatr.c: included sys/stat.h for "fstat" prototype.
        * libc/reent/openr.c: included fcntl.h for "open" prototype.
        * libc/reent/signalr.c: included signal.h for "kill" prototype,
        unistd.h for "getpid" prototype.
        * libc/reent/statr.c: included sys/stat.h for "stat" prototype.
        * libc/reent/timer.c: included sys/time.h for "gettimeofday" prototype.
        * libc/unix/getut.c (utmpname): removed local, incorrect "strdup"
        prototype.  Also included stdlib.h for "abort", string.h for
        "strdup" and "strncmp" prototypes.
        * libc/unix/getlogin.c: included string.h for "strncmp", "memset", and
        "strncpy", unistd.h for "read" and "close" prototypes.
        * libc/posix/execvp.c: included string.h for "strchr", "strlen", and
        "strcat" prototypes.
2000-08-24 18:51:09 +00:00

114 lines
2.4 KiB
C

/* Reentrant versions of times and gettimeofday system calls for the
clock and time ANSI C routines.
This implementation just calls the times/gettimeofday system calls.
Gettimeofday may not be available on all targets. It's presence
here is dubious. Consider it for internal use only. */
#include <reent.h>
#include <time.h>
#include <sys/time.h>
#include <sys/times.h>
#include <_syslist.h>
/* Some targets provides their own versions of these functions. Those
targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */
#ifdef _REENT_ONLY
#ifndef REENTRANT_SYSCALLS_PROVIDED
#define REENTRANT_SYSCALLS_PROVIDED
#endif
#endif
#ifdef REENTRANT_SYSCALLS_PROVIDED
int _dummy_time_syscalls = 1;
#else
/* We use the errno variable used by the system dependent layer. */
#undef errno
extern int errno;
/*
FUNCTION
<<_times_r>>---Reentrant version of times
INDEX
_times_r
ANSI_SYNOPSIS
#include <reent.h>
#include <sys/times.h>
clock_t _times_r(struct _reent *<[ptr]>, struct tms *<[ptms]>);
TRAD_SYNOPSIS
#include <reent.h>
#include <sys/times.h>
clock_t _times_r(<[ptr]>, <[ptms]>)
struct _reent *<[ptr]>;
struct tms *<[ptms]>;
DESCRIPTION
This is a reentrant version of <<times>>. It
takes a pointer to the global data block, which holds
<<errno>>.
*/
clock_t
_times_r (ptr, ptms)
struct _reent *ptr;
struct tms *ptms;
{
clock_t ret;
ret = _times (ptms);
return ret;
}
/*
FUNCTION
<<_gettimeofday_r>>---Reentrant version of gettimeofday
INDEX
_gettimeofday_r
ANSI_SYNOPSIS
#include <reent.h>
#include <time.h>
int _gettimeofday_r(struct _reent *<[ptr]>,
struct timeval *<[ptimeval]>,
struct timezone *<[ptimezone]>);
TRAD_SYNOPSIS
#include <reent.h>
#include <time.h>
int _gettimeofday_r(<[ptr]>, <[ptimeval]>, <[ptimezone]>)
struct _reent *<[ptr]>;
struct timeval *<[ptimeval]>;
struct timezone *<[ptimezone]>;
DESCRIPTION
This is a reentrant version of <<gettimeofday>>. It
takes a pointer to the global data block, which holds
<<errno>>.
This function is only available for a few targets.
Check libc.a to see if its available on yours.
*/
int
_gettimeofday_r (ptr, ptimeval, ptimezone)
struct _reent *ptr;
struct timeval *ptimeval;
struct timezone *ptimezone;
{
int ret;
errno = 0;
if ((ret = _gettimeofday (ptimeval, ptimezone)) == -1 && errno != 0)
ptr->_errno = errno;
return ret;
}
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */