mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 18:23:41 +08:00
05b68e14b1
Many headers are expected to expose a subset of the type definitions
in time.h. time.h has a whole bunch of messy logic for conditionally
defining some its types and structs, but, as best I can tell, this
has never worked 100%. In particular, __need_timespec is ineffective
if _TIME_H has already been defined, which means that if you compile
#include <time.h>
#include <sched.h>
with e.g. -fsyntax-only -std=c89 -Wall -Wsystem-headers, you will get
In file included from test.c:2:0:
/usr/include/sched.h:74:57: warning: "struct timespec" declared inside
parameter list will not be visible outside of this definition or declaration
extern int sched_rr_get_interval (__pid_t __pid, struct timespec *__t) __THROW;
^~~~~~~~
And if you want to _use_ sched_rr_get_interval in a TU compiled that
way, you're hosed.
This patch replaces all of that with small bits/types/TYPE.h headers
as introduced earlier. time.h and bits/time.h are now *much* simpler,
and a lot of other headers are slightly simpler.
* time/time.h, bits/time.h, sysdeps/unix/sysv/linux/bits/time.h:
Remove all logic conditional on __need macros. Move all the
conditionally defined types to their own headers...
* time/bits/types/clock_t.h: Define clock_t here.
* time/bits/types/clockid_t.h: Define clockid_t here.
* time/bits/types/struct_itimerspec.h: Define struct itimerspec here.
* time/bits/types/struct_timespec.h: Define struct timespec here.
* time/bits/types/struct_timeval.h: Define struct timeval here.
* time/bits/types/struct_tm.h: Define struct tm here.
* time/bits/types/time_t.h: Define time_t here.
* time/bits/types/timer_t.h: Define timer_t here.
* time/Makefile: Install the new headers.
* bits/resource.h, io/fcntl.h, io/sys/poll.h, io/sys/stat.h
* io/utime.h, misc/sys/select.h, posix/sched.h, posix/sys/times.h
* posix/sys/types.h, resolv/netdb.h, rt/aio.h, rt/mqueue.h
* signal/signal.h, pthread/semaphore.h, sysdeps/nptl/pthread.h
* sysdeps/unix/sysv/linux/alpha/bits/resource.h
* sysdeps/unix/sysv/linux/alpha/sys/acct.h
* sysdeps/unix/sysv/linux/bits/resource.h
* sysdeps/unix/sysv/linux/bits/timex.h
* sysdeps/unix/sysv/linux/mips/bits/resource.h
* sysdeps/unix/sysv/linux/net/ppp_defs.h
* sysdeps/unix/sysv/linux/sparc/bits/resource.h
* sysdeps/unix/sysv/linux/sys/acct.h
* sysdeps/unix/sysv/linux/sys/timerfd.h
* sysvipc/sys/msg.h, sysvipc/sys/sem.h, sysvipc/sys/shm.h
* time/sys/time.h, time/sys/timeb.h
Use the new bits/types headers.
* include/time.h: Remove __need logic.
* include/bits/time.h
* include/bits/types/clock_t.h, include/bits/types/clockid_t.h
* include/bits/types/time_t.h, include/bits/types/timer_t.h
* include/bits/types/struct_itimerspec.h
* include/bits/types/struct_timespec.h
* include/bits/types/struct_timeval.h
* include/bits/types/struct_tm.h:
New wrapper headers.
119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
#ifndef _TIME_H
|
|
#include <time/time.h>
|
|
|
|
#ifndef _ISOMAC
|
|
# include <xlocale.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
extern __typeof (strftime_l) __strftime_l;
|
|
libc_hidden_proto (__strftime_l)
|
|
extern __typeof (strptime_l) __strptime_l;
|
|
|
|
libc_hidden_proto (time)
|
|
libc_hidden_proto (asctime)
|
|
libc_hidden_proto (mktime)
|
|
libc_hidden_proto (timelocal)
|
|
libc_hidden_proto (localtime)
|
|
libc_hidden_proto (strftime)
|
|
libc_hidden_proto (strptime)
|
|
|
|
extern __typeof (clock_getres) __clock_getres;
|
|
extern __typeof (clock_gettime) __clock_gettime;
|
|
libc_hidden_proto (__clock_gettime)
|
|
extern __typeof (clock_settime) __clock_settime;
|
|
extern __typeof (clock_nanosleep) __clock_nanosleep;
|
|
extern __typeof (clock_getcpuclockid) __clock_getcpuclockid;
|
|
|
|
/* Now define the internal interfaces. */
|
|
struct tm;
|
|
|
|
/* Defined in mktime.c. */
|
|
extern const unsigned short int __mon_yday[2][13] attribute_hidden;
|
|
|
|
/* Defined in localtime.c. */
|
|
extern struct tm _tmbuf attribute_hidden;
|
|
|
|
/* Defined in tzset.c. */
|
|
extern char *__tzstring (const char *string);
|
|
|
|
/* Defined in tzset.c. */
|
|
extern size_t __tzname_cur_max attribute_hidden;
|
|
|
|
|
|
extern int __use_tzfile attribute_hidden;
|
|
|
|
extern void __tzfile_read (const char *file, size_t extra,
|
|
char **extrap);
|
|
extern void __tzfile_compute (time_t timer, int use_localtime,
|
|
long int *leap_correct, int *leap_hit,
|
|
struct tm *tp);
|
|
extern void __tzfile_default (const char *std, const char *dst,
|
|
long int stdoff, long int dstoff);
|
|
extern void __tzset_parse_tz (const char *tz);
|
|
extern void __tz_compute (time_t timer, struct tm *tm, int use_localtime)
|
|
__THROW internal_function;
|
|
|
|
/* Subroutine of `mktime'. Return the `time_t' representation of TP and
|
|
normalize TP, given that a `struct tm *' maps to a `time_t' as performed
|
|
by FUNC. Keep track of next guess for time_t offset in *OFFSET. */
|
|
extern time_t __mktime_internal (struct tm *__tp,
|
|
struct tm *(*__func) (const time_t *,
|
|
struct tm *),
|
|
time_t *__offset);
|
|
extern struct tm *__localtime_r (const time_t *__timer,
|
|
struct tm *__tp) attribute_hidden;
|
|
|
|
extern struct tm *__gmtime_r (const time_t *__restrict __timer,
|
|
struct tm *__restrict __tp);
|
|
libc_hidden_proto (__gmtime_r)
|
|
|
|
/* Compute the `struct tm' representation of *T,
|
|
offset OFFSET seconds east of UTC,
|
|
and store year, yday, mon, mday, wday, hour, min, sec into *TP.
|
|
Return nonzero if successful. */
|
|
extern int __offtime (const time_t *__timer,
|
|
long int __offset,
|
|
struct tm *__tp);
|
|
|
|
extern char *__asctime_r (const struct tm *__tp, char *__buf);
|
|
extern void __tzset (void);
|
|
|
|
/* Prototype for the internal function to get information based on TZ. */
|
|
extern struct tm *__tz_convert (const time_t *timer, int use_localtime, struct tm *tp);
|
|
|
|
/* Return the maximum length of a timezone name.
|
|
This is what `sysconf (_SC_TZNAME_MAX)' does. */
|
|
extern long int __tzname_max (void);
|
|
|
|
extern int __nanosleep (const struct timespec *__requested_time,
|
|
struct timespec *__remaining);
|
|
libc_hidden_proto (__nanosleep)
|
|
extern int __nanosleep_nocancel (const struct timespec *__requested_time,
|
|
struct timespec *__remaining)
|
|
attribute_hidden;
|
|
extern int __getdate_r (const char *__string, struct tm *__resbufp);
|
|
|
|
|
|
/* Determine CLK_TCK value. */
|
|
extern int __getclktck (void);
|
|
|
|
|
|
/* strptime support. */
|
|
extern char * __strptime_internal (const char *rp, const char *fmt,
|
|
struct tm *tm, void *statep,
|
|
__locale_t locparam)
|
|
internal_function;
|
|
|
|
extern double __difftime (time_t time1, time_t time0);
|
|
|
|
|
|
/* Use in the clock_* functions. Size of the field representing the
|
|
actual clock ID. */
|
|
#define CLOCK_IDFIELD_SIZE 3
|
|
|
|
__END_DECLS
|
|
|
|
#endif
|
|
#endif
|