+++ /dev/null
-/*
- * Portable interface to the CPU cycle counter
- *
- * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine
- *
- * Copyright (C) 2009 Paul Bakker <polarssl_maintainer at polarssl dot org>
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the names of PolarSSL or XySSL nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "polarssl/config.h"
-
-#if defined(POLARSSL_TIMING_C)
-
-#include "polarssl/timing.h"
-
-#if defined(WIN32)
-
-#include <windows.h>
-#include <winbase.h>
-
-struct _hr_time
-{
- LARGE_INTEGER start;
-};
-
-#else
-
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <signal.h>
-#include <time.h>
-
-struct _hr_time
-{
- struct timeval start;
-};
-
-#endif
-
-#if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
-
-unsigned long hardclock( void )
-{
- unsigned long tsc;
- __asm rdtsc
- __asm mov [tsc], eax
- return( tsc );
-}
-
-#else
-#if defined(__GNUC__) && defined(__i386__)
-
-unsigned long hardclock( void )
-{
- unsigned long tsc;
- asm( "rdtsc" : "=a" (tsc) );
- return( tsc );
-}
-
-#else
-#if defined(__GNUC__) && (defined(__amd64__) || defined(__x86_64__))
-
-unsigned long hardclock( void )
-{
- unsigned long lo, hi;
- asm( "rdtsc" : "=a" (lo), "=d" (hi) );
- return( lo | (hi << 32) );
-}
-
-#else
-#if defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
-
-unsigned long hardclock( void )
-{
- unsigned long tbl, tbu0, tbu1;
-
- do
- {
- asm( "mftbu %0" : "=r" (tbu0) );
- asm( "mftb %0" : "=r" (tbl ) );
- asm( "mftbu %0" : "=r" (tbu1) );
- }
- while( tbu0 != tbu1 );
-
- return( tbl );
-}
-
-#else
-#if defined(__GNUC__) && defined(__sparc__)
-
-unsigned long hardclock( void )
-{
- unsigned long tick;
- asm( ".byte 0x83, 0x41, 0x00, 0x00" );
- asm( "mov %%g1, %0" : "=r" (tick) );
- return( tick );
-}
-
-#else
-#if defined(__GNUC__) && defined(__alpha__)
-
-unsigned long hardclock( void )
-{
- unsigned long cc;
- asm( "rpcc %0" : "=r" (cc) );
- return( cc & 0xFFFFFFFF );
-}
-
-#else
-#if defined(__GNUC__) && defined(__ia64__)
-
-unsigned long hardclock( void )
-{
- unsigned long itc;
- asm( "mov %0 = ar.itc" : "=r" (itc) );
- return( itc );
-}
-
-#else
-
-static int hardclock_init = 0;
-static struct timeval tv_init;
-
-unsigned long hardclock( void )
-{
- struct timeval tv_cur;
-
- if( hardclock_init == 0 )
- {
- gettimeofday( &tv_init, NULL );
- hardclock_init = 1;
- }
-
- gettimeofday( &tv_cur, NULL );
- return( ( tv_cur.tv_sec - tv_init.tv_sec ) * 1000000
- + ( tv_cur.tv_usec - tv_init.tv_usec ) );
-}
-
-#endif /* generic */
-#endif /* IA-64 */
-#endif /* Alpha */
-#endif /* SPARC8 */
-#endif /* PowerPC */
-#endif /* AMD64 */
-#endif /* i586+ */
-
-int alarmed = 0;
-
-#if defined(WIN32)
-
-unsigned long get_timer( struct hr_time *val, int reset )
-{
- unsigned long delta;
- LARGE_INTEGER offset, hfreq;
- struct _hr_time *t = (struct _hr_time *) val;
-
- QueryPerformanceCounter( &offset );
- QueryPerformanceFrequency( &hfreq );
-
- delta = (unsigned long)( ( 1000 *
- ( offset.QuadPart - t->start.QuadPart ) ) /
- hfreq.QuadPart );
-
- if( reset )
- QueryPerformanceCounter( &t->start );
-
- return( delta );
-}
-
-DWORD WINAPI TimerProc( LPVOID uElapse )
-{
- Sleep( (DWORD) uElapse );
- alarmed = 1;
- return( TRUE );
-}
-
-void set_alarm( int seconds )
-{
- DWORD ThreadId;
-
- alarmed = 0;
- CloseHandle( CreateThread( NULL, 0, TimerProc,
- (LPVOID) ( seconds * 1000 ), 0, &ThreadId ) );
-}
-
-void m_sleep( int milliseconds )
-{
- Sleep( milliseconds );
-}
-
-#else
-
-unsigned long get_timer( struct hr_time *val, int reset )
-{
- unsigned long delta;
- struct timeval offset;
- struct _hr_time *t = (struct _hr_time *) val;
-
- gettimeofday( &offset, NULL );
-
- delta = ( offset.tv_sec - t->start.tv_sec ) * 1000
- + ( offset.tv_usec - t->start.tv_usec ) / 1000;
-
- if( reset )
- {
- t->start.tv_sec = offset.tv_sec;
- t->start.tv_usec = offset.tv_usec;
- }
-
- return( delta );
-}
-
-static void sighandler( int signum )
-{
- alarmed = 1;
- signal( signum, sighandler );
-}
-
-void set_alarm( int seconds )
-{
- alarmed = 0;
- signal( SIGALRM, sighandler );
- alarm( seconds );
-}
-
-void m_sleep( int milliseconds )
-{
- struct timeval tv;
-
- tv.tv_sec = milliseconds / 1000;
- tv.tv_usec = milliseconds * 1000;
-
- select( 0, NULL, NULL, NULL, &tv );
-}
-
-#endif
-
-#endif
projects / openwrt / svn-archive / archive.git / blobdiff