1:  

   2:  

   3: pthread_mutex_t mutex;

   4: pthread_t thread;

   5: sem_t * m_structSem;

   6:  

   7: struct SimpleStructure

   8: {

   9:     int data;

  10:     float otherData;

  11: };

  12:  

  13: void* ThreadFunction(void* arg)

  14: {

  15:     pthread_mutex_lock(&mutex);

  16:     SimpleStructure* args = (SimpleStructure*)arg;

  17:     

  18:     //todo...

  19:  

  20:     delete args;

  21:     pthread_mutex_unlock(&mutex);

  22:  

  23:     pthread_mutex_destroy(&mutex);

  24:     sem_destroy(m_structSem);

  25:  

  26:     return NULL;

  27: }

  28:  

  29: pthread_mutex_init(&mutex, NULL);

  30: m_structSem = sem_open(strThreadName.c_str(), O_CREAT, 0644, 0)

  31:  

  32: //

  33: SimpleStructure* args = new SimpleStructure();

  34: args->data = 1;

  35: args->otherData = 2.0f;

  36: //

  37: pthread_create(&thread, NULL, &ThreadFunction, args);

  38:  

  39:  

   1: CURL * curl;

   2:  

   3: string strHtml;

   4: string strRetData = "";

   5:  

   6: //第一步：初始化CURL，取得初始化成功后的CURL指针。

   7: curl = curl_easy_init();

   8:  

   9: if (!curl)

  10: {

  11:     return false;

  12: }

  13:  

  14: CCLOG("Http get string, conn: %s, url: %s", strConnName.c_str(), strUrl.c_str());

  15:  

  16: curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, HttpWriteString);

  17: curl_easy_setopt(curl, CURLOPT_WRITEDATA, &strHtml);

  18: curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);

  19: curl_easy_setopt(curl, CURLOPT_TIMEOUT, 10);

  20:  

  21: //这里定义一个CURL库中API的返回值，用于取得API调用的结果。  

  22: CURLcode res;

  23:  

  24: //第二步，设定我们用此CURL指针来完成的动作。

  25: //参数一为CURL指针，参数二为相应的动作类型枚举，这个枚举值在curl.h中定义，比如本例中的CURLOPT_URL，定义为CINIT(URL,  OBJECTPOINT, 2)，即联接一个网站的HTTP服务。

  26: //参数三为动作对应的数据参数，这里是网站的URL地址。  

  27: curl_easy_setopt(curl, CURLOPT_URL, strUrl.c_str());

  28:  

  29: ///第三步，执行上面设定的动作处理。返回结果放在res中。  

  30: res = curl_easy_perform(curl);  

  31:  

  32: //最后一步，清除CURL指针，结束对CURL库的使用。  

  33: curl_easy_cleanup(curl); 

  34:  

  35: if (res == CURLE_OK)

  36: {

  37:     strRetData = strHtml;

  38:  

  39:     CCLOG("Http get string, conn: %s, ret: %s", strConnName.c_str(), strRetData.c_str());    

  40: }

  41: else 

  42: {

  43:     //request error

  44: }

  45:  

  46: strRetData = "";

  47:  

  48: CC_SAFE_DELETE(curl);