一个连接的问题

[BS]

#include <WINSOCK2.H>
#include <stdio.h>
#include <stdlib.h>
#include <vector>

using namespace std;

#pragma comment(lib, "ws2_32.lib")

typedef vector<SOCKET> SOCKVECT;

SOCKVECT vSkts;

int main(int argc, char * argv[])
{
	WSADATA vWSAData;
	WSAStartup(0x0202, &vWSAData);
	char vIP[16] = "127.0.0.1";
	int vPort = 1111;
	SOCKADDR_IN vAddr;
	memset(&vAddr, 0, sizeof(SOCKADDR_IN));
	vAddr.sin_addr.S_un.S_addr = inet_addr(vIP);
	vAddr.sin_family = AF_INET;
	vAddr.sin_port = htons(vPort);
	while (vSkts.size() < 5000) {
		SOCKET vSkt;
		if ((vSkt = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == - 1) continue;
		if (connect(vSkt, (struct sockaddr *)&vAddr, sizeof(SOCKADDR_IN)) == -1) continue;//这里为什么到三千九百多就都失败？
		vSkts.push_back(vSkt);
	}
	char SendMsg[100];
	for (int i = 0; i < 100; i++) SendMsg[i - 32] = (i % 50) + 33;
	char RecvMsg[1024];
	while (true) {
		for (SOCKVECT::iterator test = vSkts.begin(); test != vSkts.end(); test++) {
			send(*test, SendMsg, 100, 0);
			if (recv(*test, RecvMsg, 1024, 0) < 1){
				closesocket(*test);
				vSkts.erase(test);
				while (true) {
					SOCKET vSkt;
					if (SOCKET vSkt = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) == - 1) continue;
					if (connect(vSkt, (struct sockaddr *)&vAddr, sizeof(SOCKADDR_IN)) == -1) continue;
					vSkts.push_back(vSkt);
					break;
				}
			}
		}
	}
	WSACleanup();
	return 0;
}

[blackcat242]

连接数太多了，会导致失败的

[dch4890164]

资源耗尽
和具体机器的性能有关吧
换一台别的性能的机器试验一下

[cnzdgs]

WSAGetLastError错误码是什么？

[caitian6]

是socket 创建过多 ，出的错

[yjgx007]

看来socket的资 源最高是3900

[dirdirdir3]

连接数太多了,一般有限制的........

[sms88]

正常现象