75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
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/*************************************************************************
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> File Name: download.cpp
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> Author: jkand.huang
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> Mail: jkand.huang@rock-chips.com
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> Created Time: Thu 07 Mar 2019 10:30:31 AM CST
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************************************************************************/
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#include <stdio.h>
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#include <curl/curl.h>
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#include <string.h>
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#include "log.h"
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size_t my_write_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
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{
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return fwrite(ptr, size, nmemb, stream);
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}
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extern double processvalue;
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static int down_processvalue;
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int my_progress_func(char *progress_data,
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double t, /* dltotal */
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double d, /* dlnow */
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double ultotal,
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double ulnow)
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{
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processvalue = ulnow / ultotal * 100 / 110;
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//LOGI("ultotal is %f, ulnow is %f, t is %f, d is %f\n", ultotal, ulnow, t, d);
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if (down_processvalue != (int)(d / t * 100)) {
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down_processvalue = (int)(d / t * 100);
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LOGI("down_processvalue is %d%\n", down_processvalue);
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}
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return 0;
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}
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int download_file(char *url, char *output_filename)
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{
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if (strncmp(url, "http", 4) != 0) {
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LOGI("where the file is local.\n");
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return -2;
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}
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CURL *curl;
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CURLcode res;
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FILE *outfile;
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char *progress_data = "* ";
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down_processvalue = -1;
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curl = curl_easy_init();
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if(curl)
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{
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outfile = fopen(output_filename, "wb");
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curl_easy_setopt(curl, CURLOPT_URL, url);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile);
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_write_func);
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curl_easy_setopt(curl, CURLOPT_NOPROGRESS, false);
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curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, my_progress_func);
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curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, progress_data);
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res = curl_easy_perform(curl);
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if(res != CURLE_OK)
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LOGE("curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
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fclose(outfile);
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/* always cleanup */
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curl_easy_cleanup(curl);
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}
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if(res != CURLE_OK){
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LOGE("download Error.\n");
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return -1;
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}
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return 0;
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}
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