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/*
* utils.c
*
* Copyright (C) 2009 Hector Martin <hector@marcansoft.com>
* Copyright (C) 2009 Nikias Bassen <nikias@gmx.li>
* Copyright (c) 2013 Federico Mena Quintero
*
* This 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.
*
* This 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 General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#include <time.h>
#include <sys/time.h>
#include <errno.h>
#ifdef __APPLE__
#include <mach/mach_time.h>
#endif
#include "utils.h"
#include "log.h"
#define util_error(...) usbmuxd_log(LL_ERROR, __VA_ARGS__)
void fdlist_create(struct fdlist *list)
{
list->count = 0;
list->capacity = 4;
list->owners = malloc(sizeof(*list->owners) * list->capacity);
list->fds = malloc(sizeof(*list->fds) * list->capacity);
}
void fdlist_add(struct fdlist *list, enum fdowner owner, int fd, short events)
{
if(list->count == list->capacity) {
list->capacity *= 2;
list->owners = realloc(list->owners, sizeof(*list->owners) * list->capacity);
list->fds = realloc(list->fds, sizeof(*list->fds) * list->capacity);
}
list->owners[list->count] = owner;
list->fds[list->count].fd = fd;
list->fds[list->count].events = events;
list->fds[list->count].revents = 0;
list->count++;
}
void fdlist_free(struct fdlist *list)
{
list->count = 0;
list->capacity = 0;
free(list->owners);
list->owners = NULL;
free(list->fds);
list->fds = NULL;
}
void fdlist_reset(struct fdlist *list)
{
list->count = 0;
}
#ifndef HAVE_CLOCK_GETTIME
typedef int clockid_t;
#define CLOCK_MONOTONIC 1
static int clock_gettime(clockid_t clk_id, struct timespec *ts)
{
// See http://developer.apple.com/library/mac/qa/qa1398
uint64_t mach_time, nano_sec;
static mach_timebase_info_data_t base_info;
mach_time = mach_absolute_time();
if (base_info.denom == 0) {
(void) mach_timebase_info(&base_info);
}
if (base_info.numer == 1 && base_info.denom == 1)
nano_sec = mach_time;
else
nano_sec = mach_time * base_info.numer / base_info.denom;
ts->tv_sec = nano_sec / 1000000000;
ts->tv_nsec = nano_sec % 1000000000;
return 0;
}
#endif
void get_tick_count(struct timeval * tv)
{
struct timespec ts;
if(0 == clock_gettime(CLOCK_MONOTONIC, &ts)) {
tv->tv_sec = ts.tv_sec;
tv->tv_usec = ts.tv_nsec / 1000;
} else {
gettimeofday(tv, NULL);
}
}
/**
* Get number of milliseconds since the epoch.
*/
uint64_t mstime64(void)
{
struct timeval tv;
get_tick_count(&tv);
// Careful, avoid overflow on 32 bit systems
// time_t could be 4 bytes
return ((long long)tv.tv_sec) * 1000LL + ((long long)tv.tv_usec) / 1000LL;
}
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