| 0,0 → 1,113 |
|---|
| /* Reentrant version of gettimeofday system call |
| 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> |
| #include <errno.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_gettimeofday_syscalls = 1; |
| |
| #else |
| |
| /* We use the errno variable used by the system dependent layer. */ |
| #undef errno |
| static int errno; |
| |
| /* |
| 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]>, |
| void *<[ptimezone]>); |
| |
| TRAD_SYNOPSIS |
| #include <reent.h> |
| #include <time.h> |
| int _gettimeofday_r(<[ptr]>, <[ptimeval]>, <[ptimezone]>) |
| struct _reent *<[ptr]>; |
| struct timeval *<[ptimeval]>; |
| void *<[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 |
| _DEFUN (_gettimeofday_r, (ptr, ptimeval, ptimezone), |
| struct _reent *ptr _AND |
| struct timeval *ptimeval _AND |
| void *ptimezone) |
| { |
| int ret; |
| |
| errno = 0; |
| if ((ret = _gettimeofday (ptimeval, ptimezone)) == -1 && errno != 0) |
| ptr->_errno = errno; |
| return ret; |
| } |
| |
| #define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) |
| |
| int |
| _gettimeofday (struct timeval *tv, void *tz) |
| { |
| unsigned int xtmp; |
| struct tm tmblk; |
| |
| if( tv ) |
| { |
| tv->tv_usec = 0; |
| |
| __asm__ __volatile__("int $0x40":"=a"(xtmp):"0"(3)); |
| tmblk.tm_sec = (xtmp>>16)&0xff; |
| tmblk.tm_min = (xtmp>>8)&0xff; |
| tmblk.tm_hour = xtmp&0xff; |
| BCD_TO_BIN(tmblk.tm_sec); |
| BCD_TO_BIN(tmblk.tm_min); |
| BCD_TO_BIN(tmblk.tm_hour); |
| __asm__ __volatile__("int $0x40":"=a"(xtmp):"0"(29)); |
| tmblk.tm_mday = (xtmp>>16)&0xff; |
| tmblk.tm_mon = ((xtmp>>8)&0xff)-1; |
| tmblk.tm_year = ((xtmp&0xff)+2000)-1900; |
| tmblk.tm_wday = tmblk.tm_yday = 0; |
| tmblk.tm_isdst = -1; |
| tv->tv_sec = mktime(&tmblk); |
| return 0; |
| } |
| else |
| { |
| errno = EINVAL; |
| return -1; |
| }; |
| } |
| |
| |
| #endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */ |