mirror of
https://github.com/RfidResearchGroup/proxmark3.git
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138 lines
3.7 KiB
C
138 lines
3.7 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// utilities requiring Posix library functions
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//-----------------------------------------------------------------------------
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// ensure availability even with -std=c99; must be included before
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#if !defined(_WIN32)
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//#define _POSIX_C_SOURCE 199309L // need nanosleep()
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#define _POSIX_C_SOURCE 200112L // need localtime_r()
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#else
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#include <windows.h>
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#endif
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#include "util_posix.h"
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#include <stdint.h>
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#include <time.h>
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// Timer functions
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#if !defined (_WIN32)
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#include <errno.h>
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static void nsleep(uint64_t n) {
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struct timespec timeout;
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timeout.tv_sec = n / 1000000000;
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timeout.tv_nsec = n % 1000000000;
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while (nanosleep(&timeout, &timeout) && errno == EINTR);
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}
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void msleep(uint32_t n) {
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nsleep(1000000 * (uint64_t)n);
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}
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#endif // _WIN32
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#ifdef __APPLE__
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#ifndef CLOCK_MONOTONIC
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#define CLOCK_MONOTONIC (1)
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#endif
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#ifndef CLOCK_REALTIME
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#define CLOCK_REALTIME (2)
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#endif
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#include <sys/time.h>
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#include <mach/clock.h>
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#include <mach/mach.h>
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#include <mach/mach_time.h>
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/* clock_gettime is not implemented on OSX prior to 10.12 */
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int _civet_clock_gettime(int clk_id, struct timespec *t);
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int _civet_clock_gettime(int clk_id, struct timespec *t) {
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memset(t, 0, sizeof(*t));
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if (clk_id == CLOCK_REALTIME) {
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struct timeval now;
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int rv = gettimeofday(&now, NULL);
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if (rv) {
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return rv;
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}
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t->tv_sec = now.tv_sec;
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t->tv_nsec = now.tv_usec * 1000;
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return 0;
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} else if (clk_id == CLOCK_MONOTONIC) {
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static uint64_t clock_start_time = 0;
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static mach_timebase_info_data_t timebase_info = {0, 0};
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uint64_t now = mach_absolute_time();
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if (clock_start_time == 0) {
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mach_timebase_info(&timebase_info);
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clock_start_time = now;
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}
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now = (uint64_t)((double)(now - clock_start_time)
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* (double)timebase_info.numer
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/ (double)timebase_info.denom);
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t->tv_sec = now / 1000000000;
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t->tv_nsec = now % 1000000000;
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return 0;
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}
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return -1; // EINVAL - Clock ID is unknown
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}
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/* if clock_gettime is declared, then __CLOCK_AVAILABILITY will be defined */
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#ifdef __CLOCK_AVAILABILITY
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/* If we compiled with Mac OSX 10.12 or later, then clock_gettime will be declared
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* but it may be NULL at runtime. So we need to check before using it. */
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int _civet_safe_clock_gettime(int clk_id, struct timespec *t);
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int _civet_safe_clock_gettime(int clk_id, struct timespec *t) {
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if (clock_gettime) {
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return clock_gettime(clk_id, t);
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}
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return _civet_clock_gettime(clk_id, t);
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}
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#define clock_gettime _civet_safe_clock_gettime
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#else
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#define clock_gettime _civet_clock_gettime
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#endif
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#endif
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// a milliseconds timer for performance measurement
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uint64_t msclock(void) {
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#if defined(_WIN32)
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#include <sys/types.h>
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// WORKAROUND FOR MinGW (some versions - use if normal code does not compile)
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// It has no _ftime_s and needs explicit inclusion of timeb.h
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#include <sys/timeb.h>
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struct _timeb t;
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_ftime(&t);
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return 1000 * (uint64_t)t.time + t.millitm;
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// NORMAL CODE (use _ftime_s)
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//struct _timeb t;
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//if (_ftime_s(&t)) {
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// return 0;
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//} else {
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// return 1000 * t.time + t.millitm;
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//}
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#else
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struct timespec t;
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clock_gettime(CLOCK_MONOTONIC, &t);
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return (1000 * (uint64_t)t.tv_sec + t.tv_nsec / 1000000);
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#endif
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}
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