绝对另类：WinPcap中的ADAPTER结构中有成员HANDLE ReadEvent，该如何设置它？？

Question

没有实际用过
估计是一个系统核心的 Event 句柄对象
如果是，可以在程序中WaitForSingleObject实现异步操作

Answer 1

记得好像winpcap中接收包时有一个超时机制，和一个内核接收缓冲区（一般是２５６Ｋ或１Ｍ），如果到达超时或内核缓冲满时，就会通知外面去内核接收数据，就是一般的pcap_read()调用。至于那个事件，我也不太清楚

Answer 2

例程吐血提供
unsigned long _stdcall AdapterMonitor(void *Param)
{
char buffer[256000];  // buffer to hold the data coming from the driver
char *AdapterName=(char *)Param;
LogEvent(AdapterName);
ADAPTER *lpAdapter = PacketOpenAdapter(AdapterName);
if (!lpAdapter || (lpAdapter->hFile == INVALID_HANDLE_VALUE))
return GetLastError();
// set the network adapter in promiscuous mode
PacketSetHwFilter(lpAdapter,NDIS_PACKET_TYPE_ALL_LOCAL);//NDIS_PACKET_TYPE_PROMISCUOUS);//
// set a 512K buffer in the driver
PacketSetBuff(lpAdapter,512000);
// set a 1 second read timeout
PacketSetReadTimeout(lpAdapter,1000);
//allocate and initialize a packet structure that will be used to
//receive the packets.
PACKET *lpPacket;
if((lpPacket = PacketAllocatePacket())==NULL)
return (-1);
PacketInitPacket(lpPacket,(char*)buffer,256000);
lpAdapter->ReadEvent=CreateEvent(NULL,true,false,AdapterName);
//main capture loop
do
{
if(WaitForSingleObject(lpAdapter->ReadEvent,10)!=WAIT_TIMEOUT)
if(PacketReceivePacket(lpAdapter,lpPacket,TRUE)!=FALSE)
{
EventStringGen((char *)lpPacket);//buffer);
lpPacket->ulBytesReceived=0;
}
}while(WaitForSingleObject(hControl,50)==WAIT_TIMEOUT);
CloseHandle(lpAdapter->ReadEvent);
PacketFreePacket(lpPacket);
PacketCloseAdapter(lpAdapter);
return 0;
}
unsigned long __declspec(dllexport) _stdcall MonitorThread(void *Param)
{
long ErrorCode=0;
char ErrorString[256];
ServiceParams *Parameter=(ServiceParams *)Param;
ServiceThreadID=Parameter->ServiceThreadID;
MonitorID=Parameter->MonitorID;
// Parameter->BufferPtr=BufferPtr;
// Parameter->BufferSize=BufferSize=MAX_STORE;
//======================================================
PortMap.Add(1,"TCPMUX");// TCP Port Service Multiplexer 
PortMap.Add (5,"RJE");// Remote Job Entry 
PortMap.Add(7,"ECHO");//Echo 
PortMap.Add(9,"DISCARD");// Discard 
PortMap.Add(11,"USERS");// Active Users 
PortMap.Add(13,"DAYTIME");//Daytime 
PortMap.Add(17,"Quote");// Quote of the Day 
PortMap.Add(19,"CHARGEN");// Character Generator 
PortMap.Add(20,"FTP-DATA");// File Transfer (Data Channel) 
PortMap.Add(21,"FTP");// File Transfer (Control Channel) 
PortMap.Add(23,"TELNET");//TELNET 
PortMap.Add(25,"SMTP");// Simple Mail Transfer 
PortMap.Add(27,"NSW-FE");// NSW User System FE 
PortMap.Add(29,"MSG-ICP");// MSG-ICP 
PortMap.Add(31,"MSG-AUTH");// MSG Authentication 
PortMap.Add(33,"DSP");// Display Support Protocol 
PortMap.Add(35,"Printer");// Private Printer Server 
PortMap.Add(37,"TIME");// Time 
PortMap.Add(39,"RLP");// Resource Location Protocol 
PortMap.Add(41,"GRAPHICS");// Graphics 
PortMap.Add(42,"NAMESERVER");// Host Name Server 
PortMap.Add(43,"NICNAME");// Who Is 
PortMap.Add(49,"LOGIN");// Login Host Protocol 
PortMap.Add(53,"DOMAIN");// Domain Name Server 
PortMap.Add(67,"BOOTPS");// Bootstrap Protocol Server 
PortMap.Add(68,"BOOTPC");// Bootstrap Protocol Client 
PortMap.Add(69,"TFTP");// Trivial File Transfer Protocol 
PortMap.Add(79,"FINGER");// Finger 
PortMap.Add(101,"HOSTNAMENIC");// Host Name Server 
PortMap.Add(102,"ISO-TSAP");// ISO TSAP 
PortMap.Add(103,"X400");// X.400 
PortMap.Add(104,"X400SND");// X.400 SND 
PortMap.Add(105,"CSNET-NSCSNET");//Mailbox Name Server 
PortMap.Add(109,"POP2");// Post Office Protocol v2 
PortMap.Add(110,"POP3");// Post Office Protocol v3 
PortMap.Add(111,"SUNRPC");// SUN RPC Portmap 
PortMap.Add(137,"NETBIOS-NS");// NETBIOS Name Service 
PortMap.Add(138,"NETBIOS-DGMNET");// BIOS Datagram Service 
PortMap.Add(139,"NETBIOS-SSNNET");// BIOS Session Service 
PortMap.Add(146,"ISO-TP0");//ISO TP0 
PortMap.Add(147,"ISO-IP");// ISO IP 
PortMap.Add(150,"SQL-NET");// SQL-NET 
PortMap.Add(153,"SGMP");// SGMP 
PortMap.Add(156,"SQLSRV");//SQL Service 
PortMap.Add(160,"SGMP-TRAP5");// SGMP TRAPS 
PortMap.Add(161,"SNMP");// SNMP 
PortMap.Add(162,"SNMPTRAP");// SNMPTRAP 
PortMap.Add(163,"CMIP-MANAGE");// CMIP/TCP Manager 
PortMap.Add(164,"CMIP-AGENT");// CMIP/TCP Agent 
PortMap.Add(165,"XNS-COURIER");// Xerox Network 
PortMap.Add(179,"BGP");// Border Gateway Protocol 
PortMap.Add(80,"HTTP");
PortMap.Add(135,"MS_NetBEUI");
PortMap.Add(4000,"ICQ");
PortMap.Add(7000,"OICQ");
PortMap.Add(8000,"HTTP-Proxy");
//==========================================================
hEvent=Parameter->hEvent;
hControl=Parameter->hControl;
LogEvent=Parameter->LogEvent;
SetEvent(hEvent);
LogEvent("NModule Starting");
try
{
IsNT = GetVersion() < 0x80000000;
ResetEvent(hControl);
//==================================================================
char AdapterList[10][1024];
WCHAR AdapterName[512]; // string that contains a list of the network adapters
//ascii strings (win95)
char AdapterNamea[512]; // string that contains a list of the network adapters
int AdapterNum=0;
ULONG AdapterLength;
AdapterLength=512;
int i=0;
   if (IsNT)
{  // Windows NT
PacketGetAdapterNames((char *)AdapterName,&AdapterLength);
char *temp=(char *)AdapterName;
char *temp1=(char *)AdapterName;
while ((*temp!='\0')||(*(temp-1)!='\0'))
{
if (*temp=='\0') 
{
memcpy(AdapterList[i],temp1,(temp-temp1)*2);
temp1=temp+1;
i++;
}
temp++;
}
}
else //windows 95
{
PacketGetAdapterNames(AdapterNamea,&AdapterLength);
char *tempa=AdapterNamea;
char *temp1a=AdapterNamea;
while ((*tempa!='\0')||(*(tempa-1)!='\0'))
{
if (*tempa=='\0') 
{
memcpy(AdapterList[i],temp1a,tempa-temp1a);
temp1a=tempa+1;
i++;
}
tempa++;
}
}
  LogEvent("GetAdapterNames");
AdapterNum=i;
unsigned long MonitorThreadID;
InitializeCriticalSection(&CriticalSection);
  LogEvent("InitializeCriticalSection");
HANDLE lpHandles[10];
for(i=0;i<AdapterNum&&i<10;i++)
lpHandles[i]=CreateThread(NULL,0,AdapterMonitor,(void *)AdapterList[i],0,&MonitorThreadID);
/*====================================================================*/
  LogEvent("CreateAdapterMonitorThread");
while(WaitForSingleObject(hControl,100)==WAIT_TIMEOUT);
SetEvent(hControl);
WaitForMultipleObjects(AdapterNum,lpHandles,true,1000);
}
catch(...)
{
  LogEvent(ErrorString);
// Add PostThreadMessage to Service Thread to Declare Monitor Thread Terminated
}
/*====================================================================*/
SetEvent(hEvent);
DeleteCriticalSection(&CriticalSection);
return ErrorCode;
}

Answer 3

喊啥呀，你的代码好象就是example中的吧。
大不了给分你就是了。

Answer 4

使用这开发包，必然代码会有相似之处
不过我给出的代码是我目前正在做的一个东西中的代码
不是Examples中的