--- /dev/null
+/*
+ * Copyright (c) 2001
+ * Politecnico di Torino. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the Politecnico
+ * di Torino, and its contributors.'' Neither the name of
+ * the University 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef _time_calls
+#define _time_calls
+
+#ifdef WIN_NT_DRIVER
+
+#include "debug.h"
+
+/*!
+ \brief A microsecond precise timestamp.
+
+ included in the sf_pkthdr or the bpf_hdr that NPF associates with every packet.
+*/
+
+struct timeval {
+ long tv_sec; ///< seconds
+ long tv_usec; ///< microseconds
+};
+
+#endif /*WIN_NT_DRIVER*/
+
+struct time_conv {
+ ULONGLONG reference;
+ struct timeval start;
+};
+
+#ifdef __GNUC__
+
+void TIME_DESYNCHRONIZE(struct time_conv *data);
+VOID TIME_SYNCHRONIZE(struct time_conv *data);
+void FORCE_TIME(struct timeval *src, struct time_conv *dest);
+void GET_TIME(struct timeval *dst, struct time_conv *data);
+
+#else /* __GNUC__ */
+
+#ifdef WIN_NT_DRIVER
+
+__inline void TIME_DESYNCHRONIZE(struct time_conv *data)
+{
+ data->reference = 0;
+ data->start.tv_sec = 0;
+ data->start.tv_usec = 0;
+}
+
+#ifdef KQPC_TS
+
+/* KeQueryPerformanceCounter TimeStamps */
+
+__inline VOID TIME_SYNCHRONIZE(struct time_conv *data)
+{
+ struct timeval tmp;
+ LARGE_INTEGER SystemTime;
+ LARGE_INTEGER i;
+ ULONG tmp2;
+ LARGE_INTEGER TimeFreq,PTime;
+
+ if (data->reference!=0)
+ return;
+
+ // get the absolute value of the system boot time.
+ PTime=KeQueryPerformanceCounter(&TimeFreq);
+ KeQuerySystemTime(&SystemTime);
+ tmp.tv_sec=(LONG)(SystemTime.QuadPart/10000000-11644473600);
+ tmp.tv_usec=(LONG)((SystemTime.QuadPart%10000000)/10);
+ tmp.tv_sec-=(ULONG)(PTime.QuadPart/TimeFreq.QuadPart);
+ tmp.tv_usec-=(LONG)((PTime.QuadPart%TimeFreq.QuadPart)*1000000/TimeFreq.QuadPart);
+ if (tmp.tv_usec<0) {
+ tmp.tv_sec--;
+ tmp.tv_usec+=1000000;
+ }
+ data->start=tmp;
+ data->reference=1;
+}
+
+__inline void GET_TIME(struct timeval *dst, struct time_conv *data)
+{
+ LARGE_INTEGER PTime, TimeFreq;
+ LONG tmp;
+
+ PTime=KeQueryPerformanceCounter(&TimeFreq);
+ tmp=(LONG)(PTime.QuadPart/TimeFreq.QuadPart);
+ dst->tv_sec=data->start.tv_sec+tmp;
+ dst->tv_usec=data->start.tv_usec+(LONG)((PTime.QuadPart%TimeFreq.QuadPart)*1000000/TimeFreq.QuadPart);
+ if (dst->tv_usec>=1000000) {
+ dst->tv_sec++;
+ dst->tv_usec-=1000000;
+ }
+}
+
+__inline void FORCE_TIME(struct timeval *src, struct time_conv *dest)
+{
+ dest->start=*src;
+}
+
+#else
+
+/*RDTSC timestamps*/
+
+/* callers must be at IRQL=PASSIVE_LEVEL */
+__inline VOID TIME_SYNCHRONIZE(struct time_conv *data)
+{
+ struct timeval tmp;
+ LARGE_INTEGER system_time;
+ ULONGLONG curr_ticks;
+ KIRQL old;
+ LARGE_INTEGER start_kqpc,stop_kqpc,start_freq,stop_freq;
+ ULONGLONG start_ticks,stop_ticks;
+ ULONGLONG delta,delta2;
+ KEVENT event;
+ LARGE_INTEGER i;
+ ULONGLONG reference;
+
+ if (data->reference!=0)
+ return;
+
+ KeInitializeEvent(&event,NotificationEvent,FALSE);
+ i.QuadPart=-3500000;
+ KeRaiseIrql(HIGH_LEVEL,&old);
+ start_kqpc=KeQueryPerformanceCounter(&start_freq);
+#ifndef __GNUC__
+ __asm
+ {
+ push eax
+ push edx
+ push ecx
+ rdtsc
+ lea ecx, start_ticks
+ mov [ecx+4], edx
+ mov [ecx], eax
+ pop ecx
+ pop edx
+ pop eax
+ }
+#else
+#endif
+ KeLowerIrql(old);
+ KeWaitForSingleObject(&event,UserRequest,KernelMode,TRUE ,&i);
+ KeRaiseIrql(HIGH_LEVEL,&old);
+ stop_kqpc=KeQueryPerformanceCounter(&stop_freq);
+#ifndef __GNUC__
+ __asm
+ {
+ push eax
+ push edx
+ push ecx
+ rdtsc
+ lea ecx, stop_ticks
+ mov [ecx+4], edx
+ mov [ecx], eax
+ pop ecx
+ pop edx
+ pop eax
+ }
+#else
+#endif
+ KeLowerIrql(old);
+ delta=stop_ticks-start_ticks;
+ delta2=stop_kqpc.QuadPart-start_kqpc.QuadPart;
+ if (delta>10000000000) {
+ delta/=16;
+ delta2/=16;
+ }
+ reference=delta*(start_freq.QuadPart)/delta2;
+ data->reference=reference/1000;
+ if (reference%1000>500)
+ data->reference++;
+ data->reference*=1000;
+ reference=data->reference;
+ KeQuerySystemTime(&system_time);
+#ifndef __GNUC__
+ __asm
+ {
+ push eax
+ push edx
+ push ecx
+ rdtsc
+ lea ecx, curr_ticks
+ mov [ecx+4], edx
+ mov [ecx], eax
+ pop ecx
+ pop edx
+ pop eax
+ }
+#else
+#endif
+ tmp.tv_sec=-(LONG)(curr_ticks/reference);
+ tmp.tv_usec=-(LONG)((curr_ticks%reference)*1000000/reference);
+ system_time.QuadPart-=116444736000000000;
+ tmp.tv_sec+=(LONG)(system_time.QuadPart/10000000);
+ tmp.tv_usec+=(LONG)((system_time.QuadPart%10000000)/10);
+ if (tmp.tv_usec<0) {
+ tmp.tv_sec--;
+ tmp.tv_usec+=1000000;
+ }
+ data->start=tmp;
+ IF_LOUD(DbgPrint("Frequency %I64u MHz\n",data->reference);)
+}
+
+__inline void FORCE_TIME(struct timeval *src, struct time_conv *dest)
+{
+ dest->start=*src;
+}
+
+__inline void GET_TIME(struct timeval *dst, struct time_conv *data)
+{
+ ULONGLONG tmp;
+#ifndef __GNUC__
+ __asm
+ {
+ push eax
+ push edx
+ push ecx
+ rdtsc
+ lea ecx, tmp
+ mov [ecx+4], edx
+ mov [ecx], eax
+ pop ecx
+ pop edx
+ pop eax
+ }
+#else
+#endif
+ if (data->reference==0) {
+ return;
+ }
+ dst->tv_sec=(LONG)(tmp/data->reference);
+ dst->tv_usec=(LONG)((tmp-dst->tv_sec*data->reference)*1000000/data->reference);
+ dst->tv_sec+=data->start.tv_sec;
+ dst->tv_usec+=data->start.tv_usec;
+ if (dst->tv_usec>=1000000) {
+ dst->tv_sec++;
+ dst->tv_usec-=1000000;
+ }
+}
+
+#endif /*KQPC_TS*/
+
+#endif /*WIN_NT_DRIVER*/
+
+#endif /* __GNUC__ */
+
+#endif /*_time_calls*/
git://git.jankratochvil.net / reactos.git / blobdiff