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Diffstat (limited to 'uclibc-crosstools-gcc-4.4.2-1/usr/include/sys/time.h')
| -rw-r--r-- | uclibc-crosstools-gcc-4.4.2-1/usr/include/sys/time.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/uclibc-crosstools-gcc-4.4.2-1/usr/include/sys/time.h b/uclibc-crosstools-gcc-4.4.2-1/usr/include/sys/time.h new file mode 100644 index 0000000..66fb9e0 --- /dev/null +++ b/uclibc-crosstools-gcc-4.4.2-1/usr/include/sys/time.h @@ -0,0 +1,192 @@ +/* Copyright (C) 1991-1994,1996-2002,2003,2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_TIME_H +#define _SYS_TIME_H 1 + +#include <features.h> + +#include <bits/types.h> +#define __need_time_t +#include <time.h> +#define __need_timeval +#include <bits/time.h> + +#include <sys/select.h> + +#ifndef __suseconds_t_defined +typedef __suseconds_t suseconds_t; +# define __suseconds_t_defined +#endif + + +__BEGIN_DECLS + +#ifdef __USE_GNU +/* Macros for converting between `struct timeval' and `struct timespec'. */ +# define TIMEVAL_TO_TIMESPEC(tv, ts) { \ + (ts)->tv_sec = (tv)->tv_sec; \ + (ts)->tv_nsec = (tv)->tv_usec * 1000; \ +} +# define TIMESPEC_TO_TIMEVAL(tv, ts) { \ + (tv)->tv_sec = (ts)->tv_sec; \ + (tv)->tv_usec = (ts)->tv_nsec / 1000; \ +} +#endif + + +#ifdef __USE_BSD +/* Structure crudely representing a timezone. + This is obsolete and should never be used. */ +struct timezone + { + int tz_minuteswest; /* Minutes west of GMT. */ + int tz_dsttime; /* Nonzero if DST is ever in effect. */ + }; + +typedef struct timezone *__restrict __timezone_ptr_t; +#else +typedef void *__restrict __timezone_ptr_t; +#endif + +/* Get the current time of day and timezone information, + putting it into *TV and *TZ. If TZ is NULL, *TZ is not filled. + Returns 0 on success, -1 on errors. + NOTE: This form of timezone information is obsolete. + Use the functions and variables declared in <time.h> instead. */ +extern int gettimeofday (struct timeval *__restrict __tv, + __timezone_ptr_t __tz) __THROW __nonnull ((1)); + +#ifdef __USE_BSD +/* Set the current time of day and timezone information. + This call is restricted to the super-user. */ +extern int settimeofday (__const struct timeval *__tv, + __const struct timezone *__tz) + __THROW __nonnull ((1)); + +/* Adjust the current time of day by the amount in DELTA. + If OLDDELTA is not NULL, it is filled in with the amount + of time adjustment remaining to be done from the last `adjtime' call. + This call is restricted to the super-user. */ +extern int adjtime (__const struct timeval *__delta, + struct timeval *__olddelta) __THROW; +#endif + + +/* Values for the first argument to `getitimer' and `setitimer'. */ +enum __itimer_which + { + /* Timers run in real time. */ + ITIMER_REAL = 0, +#define ITIMER_REAL ITIMER_REAL + /* Timers run only when the process is executing. */ + ITIMER_VIRTUAL = 1, +#define ITIMER_VIRTUAL ITIMER_VIRTUAL + /* Timers run when the process is executing and when + the system is executing on behalf of the process. */ + ITIMER_PROF = 2 +#define ITIMER_PROF ITIMER_PROF + }; + +/* Type of the second argument to `getitimer' and + the second and third arguments `setitimer'. */ +struct itimerval + { + /* Value to put into `it_value' when the timer expires. */ + struct timeval it_interval; + /* Time to the next timer expiration. */ + struct timeval it_value; + }; + +#if defined __USE_GNU && !defined __cplusplus +/* Use the nicer parameter type only in GNU mode and not for C++ since the + strict C++ rules prevent the automatic promotion. */ +typedef enum __itimer_which __itimer_which_t; +#else +typedef int __itimer_which_t; +#endif + +/* Set *VALUE to the current setting of timer WHICH. + Return 0 on success, -1 on errors. */ +extern int getitimer (__itimer_which_t __which, + struct itimerval *__value) __THROW; + +/* Set the timer WHICH to *NEW. If OLD is not NULL, + set *OLD to the old value of timer WHICH. + Returns 0 on success, -1 on errors. */ +extern int setitimer (__itimer_which_t __which, + __const struct itimerval *__restrict __new, + struct itimerval *__restrict __old) __THROW; + +/* Change the access time of FILE to TVP[0] and the modification time of + FILE to TVP[1]. If TVP is a null pointer, use the current time instead. + Returns 0 on success, -1 on errors. */ +extern int utimes (__const char *__file, __const struct timeval __tvp[2]) + __THROW __nonnull ((1)); + +#if 0 /*def __USE_BSD*/ +/* Same as `utimes', but does not follow symbolic links. */ +extern int lutimes (__const char *__file, __const struct timeval __tvp[2]) + __THROW __nonnull ((1)); + +/* Same as `utimes', but takes an open file descriptor instead of a name. */ +extern int futimes (int __fd, __const struct timeval __tvp[2]) __THROW; +#endif + +#if 0 /*def __USE_GNU*/ +/* Change the access time of FILE relative to FD to TVP[0] and the + modification time of FILE to TVP[1]. If TVP is a null pointer, use + the current time instead. Returns 0 on success, -1 on errors. */ +extern int futimesat (int __fd, __const char *__file, + __const struct timeval __tvp[2]) __THROW; +#endif + + +#ifdef __USE_BSD +/* Convenience macros for operations on timevals. + NOTE: `timercmp' does not work for >= or <=. */ +# define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) +# define timerclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0) +# define timercmp(a, b, CMP) \ + (((a)->tv_sec == (b)->tv_sec) ? \ + ((a)->tv_usec CMP (b)->tv_usec) : \ + ((a)->tv_sec CMP (b)->tv_sec)) +# define timeradd(a, b, result) \ + do { \ + (result)->tv_sec = (a)->tv_sec + (b)->tv_sec; \ + (result)->tv_usec = (a)->tv_usec + (b)->tv_usec; \ + if ((result)->tv_usec >= 1000000) \ + { \ + ++(result)->tv_sec; \ + (result)->tv_usec -= 1000000; \ + } \ + } while (0) +# define timersub(a, b, result) \ + do { \ + (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \ + (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \ + if ((result)->tv_usec < 0) { \ + --(result)->tv_sec; \ + (result)->tv_usec += 1000000; \ + } \ + } while (0) +#endif /* BSD */ + +__END_DECLS + +#endif /* sys/time.h */ |