94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
/*
|
|
* utils - misc libubox utility functions
|
|
*
|
|
* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include "utils.h"
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
#define foreach_arg(_arg, _addr, _len, _first_addr, _first_len) \
|
|
for (_addr = (_first_addr), _len = (_first_len); \
|
|
_addr; \
|
|
_addr = va_arg(_arg, void **), _len = _addr ? va_arg(_arg, size_t) : 0)
|
|
|
|
void *__calloc_a(size_t len, ...)
|
|
{
|
|
va_list ap, ap1;
|
|
void *ret;
|
|
void **cur_addr;
|
|
size_t cur_len;
|
|
int alloc_len = 0;
|
|
char *ptr;
|
|
|
|
va_start(ap, len);
|
|
|
|
va_copy(ap1, ap);
|
|
foreach_arg(ap1, cur_addr, cur_len, &ret, len)
|
|
alloc_len += cur_len;
|
|
va_end(ap1);
|
|
|
|
ptr = calloc(1, alloc_len);
|
|
alloc_len = 0;
|
|
foreach_arg(ap, cur_addr, cur_len, &ret, len) {
|
|
*cur_addr = &ptr[alloc_len];
|
|
alloc_len += cur_len;
|
|
}
|
|
va_end(ap);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef __APPLE__
|
|
#include <mach/mach_time.h>
|
|
|
|
static void clock_gettime_realtime(struct timespec *tv)
|
|
{
|
|
struct timeval _tv;
|
|
|
|
gettimeofday(&_tv, NULL);
|
|
tv->tv_sec = _tv.tv_sec;
|
|
tv->tv_nsec = _tv.tv_usec * 1000;
|
|
}
|
|
|
|
static void clock_gettime_monotonic(struct timespec *tv)
|
|
{
|
|
mach_timebase_info_data_t info;
|
|
float sec;
|
|
uint64_t val;
|
|
|
|
mach_timebase_info(&info);
|
|
|
|
val = mach_absolute_time();
|
|
tv->tv_nsec = (val * info.numer / info.denom) % 1000000000;
|
|
|
|
sec = val;
|
|
sec *= info.numer;
|
|
sec /= info.denom;
|
|
sec /= 1000000000;
|
|
tv->tv_sec = sec;
|
|
}
|
|
|
|
void clock_gettime(int type, struct timespec *tv)
|
|
{
|
|
if (type == CLOCK_REALTIME)
|
|
return clock_gettime_realtime(tv);
|
|
else
|
|
return clock_gettime_monotonic(tv);
|
|
}
|
|
|
|
#endif
|