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| #include <winsock2.h>
#include <Thread/Lock.h>
#include <stdio.h>
#define NB_SOCKS_MAX 10
#pragma comment(lib, "Ws2_32.lib")
void CreatePoolThreads(int iIndexMin, int iIndexMax);
int ConnectToServer(char * lpszServer, int iPort);
DWORD WINAPI StartThread(LPVOID lpParam);
int main()
{
WSADATA wsaData;
if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
{
fprintf(stderr, "La fonction WSAStartup a echoue.\n");
return EXIT_FAILURE;
}
while (true)
{
CreatePoolThreads(39, 48);
}
WSACleanup();
return EXIT_SUCCESS;
}
void CreatePoolThreads(int iIndexMin, int iIndexMax)
{
HANDLE achHThread[NB_SOCKS_MAX] = { NULL };
int iIndex = iIndexMin;
while (iIndex <= iIndexMax)
{
int iPoolCount = (iIndex + NB_SOCKS_MAX - 1 <= iIndexMax) ? NB_SOCKS_MAX : iIndexMax - iIndex + 1;
int tab[NB_SOCKS_MAX];
int i;
for (i = 0; i < iPoolCount; ++i)
{
tab[i] = iIndex;
achHThread[i] = CreateThread(NULL, 0, static_cast<LPTHREAD_START_ROUTINE>(StartThread), &tab[i], 0, NULL);
++iIndex;
}
WaitForMultipleObjects(iPoolCount, achHThread, TRUE, INFINITE);
for (i = 0; i < NB_SOCKS_MAX; ++i)
{
if (achHThread[i] && (achHThread[i] != INVALID_HANDLE_VALUE))
{
CloseHandle(achHThread[i]);
achHThread[i] = NULL;
}
}
}
}
int ConnectToServer(char * lpszServer, int iPort)
{
{
Thread::CLock lock("print");
fprintf(stdout, "Connexion au serveur %s sur le port %d.\n", lpszServer, iPort);
}
SOCKET s;
s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (s == INVALID_SOCKET)
{
fprintf(stderr, "La fonction socket a echoue (%s).\n", lpszServer);
return -1;
}
else
{
SOCKADDR_IN server;
ULONG fionbio;
server.sin_family = AF_INET;
server.sin_addr.s_addr = inet_addr(lpszServer);
server.sin_port = htons(iPort);
memset(&server.sin_zero, '\0', sizeof(server.sin_zero));
// Mode non-bloquant
fionbio = TRUE;
ioctlsocket(s, FIONBIO, &fionbio);
if ((connect(s, (SOCKADDR *)&server, sizeof(server))) == SOCKET_ERROR)
{
fd_set writefds;
struct timeval tv;
tv.tv_sec = 3;
tv.tv_usec = 0;
FD_ZERO(&writefds);
FD_SET(s, &writefds);
select(0, NULL, &writefds, NULL, &tv);
// Retour au mode bloquant
fionbio = FALSE;
ioctlsocket(s, FIONBIO, &fionbio);
if (FD_ISSET(s, &writefds))
{
{
Thread::CLock lock("print");
fprintf(stdout, "%s connecte.\n", lpszServer);
}
char buffer[100];
int n;
n = recv(s, buffer, sizeof(buffer) - 1, 0);
if (n != SOCKET_ERROR)
{
buffer[n] = '\0';
{
Thread::CLock lock("print");
fprintf(stdout, "%s", buffer);
}
{
Thread::CLock lock("send");
send(s, "Au revoir\n", (int)strlen("Au revoir\n"), 0);
}
}
shutdown(s, SD_SEND);
}
else
{
{
Thread::CLock lock("print");
fprintf(stderr, "%s non connecte avec le port %d.\n", lpszServer, iPort);
}
}
}
closesocket(s);
}
return 0;
}
DWORD WINAPI StartThread(LPVOID lpParam)
{
char achServer[15];
int iCr;
int * lpiNum = reinterpret_cast<int *>(lpParam);
int iNum = *lpiNum;
sprintf(achServer, "172.16.20.%d", iNum);
iCr = ConnectToServer(achServer, 3650);
return 0;
} |
