code: 3 var

lab03.depend

@@ -7,13 +7,15 @@
 1716797551 c:\users\lenov\desktop\lab03\histogram.h
 	<vector>
 
-1717523570 source:c:\users\lenov\desktop\lab03\main.cpp
+1717528384 source:c:\users\lenov\desktop\lab03\main.cpp
 	<iostream>
 	<vector>
+	<sstream>
+	<string>
+	<curl/curl.h>
 	"histogram.h"
 	"text.h"
 	"svg.h"
-	<curl/curl.h>
 
 1716798974 c:\users\lenov\desktop\lab03\text.h
 	<vector>

main.cpp

@@ -1,22 +1,22 @@
 #include <iostream>
 #include <vector>
+#include <sstream>
+#include <string>
+#include <curl/curl.h>
 #include "histogram.h"
 #include "text.h"
 #include "svg.h"
-#include <curl/curl.h>
-
-
-
 
 using namespace std;
 
-struct Input {
+struct Input
+{
     vector<double> numbers;
     size_t bin_count{};
-
 };
-Input
+
-input_data(istream& stream, bool prompt) {
+
+Input input_data(istream& stream, bool prompt) {
   Input in;
   size_t number_count;
   if (prompt) {
@@ -37,26 +37,48 @@ input_data(istream& stream, bool prompt) {
   return in;
 }
 
+size_t
+write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
+    size_t data_size = item_size * item_count;
+    stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
+    (*buffer).write(reinterpret_cast<const char*>(items), data_size);
+    return data_size;
+}
+
+Input
+download(const string& address) {
+    stringstream buffer;
+    CURL *curl = curl_easy_init();
+    if(curl) {
+        CURLcode res;
+        curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
+        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
+        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
+        res = curl_easy_perform(curl);
+
+        int speed;
+        curl_easy_getinfo(curl,CURLINFO_SPEED_DOWNLOAD_T, & speed);
+        cerr << "The average download speed: " << speed <<  " bytes/second" << endl ;
+
+
+        if (res!=CURLE_OK){
+            cerr << curl_easy_strerror(res);
+            exit(1);
+        }
+        curl_easy_cleanup(curl);
+    }
+    return input_data(buffer, false);
+}
+
 int main(int argc, char* argv[])
 {
+    Input input;
     if (argc > 1) {
-        CURL *curl = curl_easy_init();
+        input = download(argv[1]);
-
+    } else {
-        if(curl) {
+        input = input_data(cin, true);
-            CURLcode res;
-            curl_easy_setopt(curl, CURLOPT_URL, argv[0]);
-            res = curl_easy_perform(curl);
-            if (res!=CURLE_OK){
-                cerr << curl_easy_strerror(res);
-                exit(1);
-            }
-            curl_easy_cleanup(curl);
-        }
-        return 0;
     }
-    Input in = input_data(cin, true);
+    const auto bins = make_histogram(input.numbers, input.bin_count);
-    vector<size_t> bins = make_histogram(in.numbers, in.bin_count);
     show_histogram_svg(bins);
-
+     return 0;
-    return 0;
 }