--- /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 / project / luci.git / blobdiff