2012-12-30 22:42:46 +01:00
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/*
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* utils - misc libubox utility functions
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*
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* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "utils.h"
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#define foreach_arg(_arg, _addr, _len, _first_addr, _first_len) \
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for (_addr = (_first_addr), _len = (_first_len); \
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_addr; \
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_addr = va_arg(_arg, void **), _len = _addr ? va_arg(_arg, size_t) : 0)
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void *__calloc_a(size_t len, ...)
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{
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va_list ap, ap1;
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void *ret;
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void **cur_addr;
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size_t cur_len;
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int alloc_len = 0;
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char *ptr;
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va_start(ap, len);
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va_copy(ap1, ap);
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foreach_arg(ap1, cur_addr, cur_len, &ret, len)
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alloc_len += cur_len;
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va_end(ap1);
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ptr = calloc(1, alloc_len);
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alloc_len = 0;
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foreach_arg(ap, cur_addr, cur_len, &ret, len) {
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*cur_addr = &ptr[alloc_len];
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alloc_len += cur_len;
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}
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va_end(ap);
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return ret;
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}
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2013-01-06 02:42:58 +01:00
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#ifdef __APPLE__
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#include <mach/mach_time.h>
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static void clock_gettime_realtime(struct timespec *tv)
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{
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struct timeval _tv;
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gettimeofday(&_tv, NULL);
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tv->tv_sec = _tv.tv_sec;
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tv->tv_nsec = _tv.tv_usec * 1000;
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}
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static void clock_gettime_monotonic(struct timespec *tv)
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{
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mach_timebase_info_data_t info;
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float sec;
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uint64_t val;
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mach_timebase_info(&info);
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val = mach_absolute_time();
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tv->tv_nsec = (val * info.numer / info.denom) % 1000000000;
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sec = val;
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sec *= info.numer;
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sec /= info.denom;
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sec /= 1000000000;
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tv->tv_sec = sec;
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}
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void clock_gettime(int type, struct timespec *tv)
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{
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if (type == CLOCK_REALTIME)
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return clock_gettime_realtime(tv);
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else
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return clock_gettime_monotonic(tv);
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}
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#endif
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