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/*
* 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);
if (!ptr)
return NULL;
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_host.h> /* host_get_clock_service() */
#include <mach/mach_port.h> /* mach_port_deallocate() */
#include <mach/mach_init.h> /* mach_host_self(), mach_task_self() */
#include <mach/clock.h> /* clock_get_time() */
static clock_serv_t clock_realtime;
static clock_serv_t clock_monotonic;
static void __constructor clock_name_init(void)
{
mach_port_t host_self = mach_host_self();
host_get_clock_service(host_self, CLOCK_REALTIME, &clock_realtime);
host_get_clock_service(host_self, CLOCK_MONOTONIC, &clock_monotonic);
}
static void __destructor clock_name_dealloc(void)
{
mach_port_t self = mach_task_self();
mach_port_deallocate(self, clock_realtime);
mach_port_deallocate(self, clock_monotonic);
}
int clock_gettime(int type, struct timespec *tv)
{
int retval = -1;
mach_timespec_t mts;
switch (type) {
case CLOCK_REALTIME:
retval = clock_get_time(clock_realtime, &mts);
break;
case CLOCK_MONOTONIC:
retval = clock_get_time(clock_monotonic, &mts);
break;
default:
goto out;
}
tv->tv_sec = mts.tv_sec;
tv->tv_nsec = mts.tv_nsec;
out:
return retval;
}
#endif
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