[100分]高分求关于linux socket上限解决方案

evoloyeu 2010-09-01 01:22:11

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我想写一个复用socket的程序，以避免linux里socket最高上限的限制。因为程序是运行在服务器端，只提高linux系统下的socket限制数，是无法满足我的需求。我的代码如下，敬请各位大侠帮忙。
我遇到的问题是：第一次能够成功连接，并下载数据；但是再次连接就无法连接上。
下面的这个函数是要无限循环运行的。
code：
/*======================*/
BOOL m3u8Parser(char *url) {
// m3u8sSocket是全局变量;
// m3u8stSvrAddrIn是全局变量;
char sndBuf[1024] = { 0 };
char rcvBuf[1024 * 20] = { 0 };
char rcvBufswap[1024 * 20] = { 0 };
int num = 0, len = 0;
int nRet = SOCKET_ERROR;

char IPString[50] = { 0 };
char http_HOST[1024] = { 0 };
char http_GET[1024] = { 0 };
char *ip = NULL;
char path[1024] = { 0 };
char filename[1024] = { 0 };
char *tmp = NULL;
char *content = NULL;
FILE* fp = NULL;
time_t tps, tpe;

getHTTP_HOST(url, http_HOST);
getHTTP_GET(url, http_GET);

getIPString(url, IPString);
//printf("m3u8Parser->getIPString:%s\n", IPString);

pthread_mutex_lock(&mutex);
if ((ip = get_IPURLLINKAGE_IP(pIPURLLink, IPString)) == NULL) {
printf("m3u8Parser->pthread_mutex_lock:%s\n", ip);
if ((ip = GetIP(IPString)) == NULL) {
printf("m3u8Parser->GetIP->EXIT_FAILURE\n");
pthread_mutex_unlock(&mutex);
return FALSE;
}

if (get_IPURLLINKAGE_counter(pIPURLLink) >= MAXIPNUMBER)
remove_ip_url_1st_node(pIPURLLink);

append_ip_url_link_node_trail(pIPURLLink, new_ip_url_link_node(
IPString, ip));
}
pthread_mutex_unlock(&mutex);

if (createSaveDirectory(url, path) != 0) {
errorLoc = 1;
printf("m3u8Parser createSaveDirectory\n");
return FALSE;
}

getFilename(url, filename);

fp = fopen(filename, "wt");
if (fp == NULL) {
errorLoc = 1;
return FALSE;
}

strcat(sndBuf, http_GET);
strcat(sndBuf, http_HOST);
// printf("%s\n", sndBuf);

#ifdef WIN32
WSADATA wsaData;
{
if (WSAStartup(0x202, &wsaData) == SOCKET_ERROR)
{
perror("WSAStartup");
return FALSE;
}
}
#endif

m3u8stSvrAddrIn.sin_family = AF_INET;
m3u8stSvrAddrIn.sin_port = htons(80);
m3u8stSvrAddrIn.sin_addr.s_addr = inet_addr(ip);

if (m3u8sSocket == -1) {
m3u8sSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
printf("create m3u8Parser sSocket:%d\n", m3u8sSocket);
}
printf("m3u8Parser sSocket:%d\n", m3u8sSocket);

nRet = connect(m3u8sSocket, (SOCKADDR*) &m3u8stSvrAddrIn, sizeof(SOCKADDR));
if (SOCKET_ERROR == nRet) {
//errorLoc = 1;
printf(" m3u8Saver connect fail!\n");
goto GOEND;
}

nRet = send(m3u8sSocket, (char*) sndBuf, strlen(sndBuf), 0);
//printf("m3u8Parser nRet:%d\n", nRet);
//----------------------------------------------
// while(1){
//处理接收到的数据。
}
//----------------------------------------------
shutdown(m3u8sSocket, SHUT_WR);
// close(m3u8sSocket);
fclose(fp);

return TRUE;

GOEND:
// printf("GOEND\n");
#ifdef WIN32
WSACleanup();
#endif
fclose(fp);

return FALSE;
}
/*======================*/

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