在 2015-03-11 14:15:03，"Ray Satiro" <[email protected]> 写道： On 3/10/2015 11:41 PM, 兰天 wrote: Thanks for answering,I use libcurl 7.36, in the callback function , size_t write_callback(char *ptr, size_t size, size_t nmemb, void *userdata); all the type I use is unsigned int,does that lead to the Failed writing body (-1 != 16384) ? Please do not top-post [1]. I don't know why you'd see -1 because in the version of libcurl you claim to be using the format specifier is %zu [2] and that should print an unsigned integer not -1. Maybe someone else on the list can shed some insight on what could be happening there. Try getting the version string dynamically to see which libcurl is actually being used: printf("%s\n",curl_version_info(CURLVERSION_NOW)->version); If you need more help please do what I said in my previous e-mail. Also can you post your write callback function? My write callback function is follow:int Writer(char *data, size_t size, size_t nmemb, void *stream){ CURL_DATA_INFO *out = (CURL_DATA_INFO *) stream; unsigned int uiSizes = size * nmemb;unsigned int uiLoadContentLen = 0; if (NULL == out || 0 == size || 0 == nmemb){LOG_ERR("NULL == out || 0 == size || 0 == nmemb");//return -1; } if ( uiSizes <= out->uiBufLen - out->uiWriteBufLen){//LOG_DBG("uiSizes:%u,buffer length:%u,writen lengh:%u",uiSizes,out->uiBufLen, out->uiWriteBufLen); memcpy(out->pszDownBuf + out->uiWriteBufLen, data, uiSizes);out->uiWriteBufLen += uiSizes;if(out->uiWriteBufLen > out->uiBufLen){LOG_ERR("invalid write buf len:%u", out->uiWriteBufLen);}uiLoadContentLen = uiSizes;return uiLoadContentLen;}else{LOG_ERR("too large file, size=%u, writen=%u", uiSizes, out->uiWriteBufLen);//return -2;}//return 0;}after I running the program for 2 hours ,the programe stop with the follow infomations:* Failed writing body (1 != 16384)* Closing connection #21* Failed writing body (1 != 16384)* Closing connection #7* Operation timed out after 40000 milliseconds with 186810 out of 269621 bytes received* Closing connection #58 [1]: http://curl.haxx.se/mail/etiquette.html#Do_Not_Top_Post [2]: https://github.com/bagder/curl/blob/curl-7_36_0/lib/sendf.c#L459
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