Annotation of embedaddon/curl/docs/examples/chkspeed.c, revision 1.1.1.1
1.1 misho 1: /***************************************************************************
2: * _ _ ____ _
3: * Project ___| | | | _ \| |
4: * / __| | | | |_) | |
5: * | (__| |_| | _ <| |___
6: * \___|\___/|_| \_\_____|
7: *
8: * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
9: *
10: * This software is licensed as described in the file COPYING, which
11: * you should have received as part of this distribution. The terms
12: * are also available at https://curl.haxx.se/docs/copyright.html.
13: *
14: * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15: * copies of the Software, and permit persons to whom the Software is
16: * furnished to do so, under the terms of the COPYING file.
17: *
18: * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19: * KIND, either express or implied.
20: *
21: ***************************************************************************/
22: /* <DESC>
23: * Show transfer timing info after download completes.
24: * </DESC>
25: */
26: /* Example source code to show how the callback function can be used to
27: * download data into a chunk of memory instead of storing it in a file.
28: * After successful download we use curl_easy_getinfo() calls to get the
29: * amount of downloaded bytes, the time used for the whole download, and
30: * the average download speed.
31: * On Linux you can create the download test files with:
32: * dd if=/dev/urandom of=file_1M.bin bs=1M count=1
33: *
34: */
35:
36: #include <stdio.h>
37: #include <stdlib.h>
38: #include <string.h>
39: #include <time.h>
40:
41: #include <curl/curl.h>
42:
43: #define URL_BASE "http://speedtest.your.domain/"
44: #define URL_1M URL_BASE "file_1M.bin"
45: #define URL_2M URL_BASE "file_2M.bin"
46: #define URL_5M URL_BASE "file_5M.bin"
47: #define URL_10M URL_BASE "file_10M.bin"
48: #define URL_20M URL_BASE "file_20M.bin"
49: #define URL_50M URL_BASE "file_50M.bin"
50: #define URL_100M URL_BASE "file_100M.bin"
51:
52: #define CHKSPEED_VERSION "1.0"
53:
54: static size_t WriteCallback(void *ptr, size_t size, size_t nmemb, void *data)
55: {
56: /* we are not interested in the downloaded bytes itself,
57: so we only return the size we would have saved ... */
58: (void)ptr; /* unused */
59: (void)data; /* unused */
60: return (size_t)(size * nmemb);
61: }
62:
63: int main(int argc, char *argv[])
64: {
65: CURL *curl_handle;
66: CURLcode res;
67: int prtall = 0, prtsep = 0, prttime = 0;
68: const char *url = URL_1M;
69: char *appname = argv[0];
70:
71: if(argc > 1) {
72: /* parse input parameters */
73: for(argc--, argv++; *argv; argc--, argv++) {
74: if(strncasecmp(*argv, "-", 1) == 0) {
75: if(strncasecmp(*argv, "-H", 2) == 0) {
76: fprintf(stderr,
77: "\rUsage: %s [-m=1|2|5|10|20|50|100] [-t] [-x] [url]\n",
78: appname);
79: exit(1);
80: }
81: else if(strncasecmp(*argv, "-V", 2) == 0) {
82: fprintf(stderr, "\r%s %s - %s\n",
83: appname, CHKSPEED_VERSION, curl_version());
84: exit(1);
85: }
86: else if(strncasecmp(*argv, "-A", 2) == 0) {
87: prtall = 1;
88: }
89: else if(strncasecmp(*argv, "-X", 2) == 0) {
90: prtsep = 1;
91: }
92: else if(strncasecmp(*argv, "-T", 2) == 0) {
93: prttime = 1;
94: }
95: else if(strncasecmp(*argv, "-M=", 3) == 0) {
96: long m = strtol((*argv) + 3, NULL, 10);
97: switch(m) {
98: case 1:
99: url = URL_1M;
100: break;
101: case 2:
102: url = URL_2M;
103: break;
104: case 5:
105: url = URL_5M;
106: break;
107: case 10:
108: url = URL_10M;
109: break;
110: case 20:
111: url = URL_20M;
112: break;
113: case 50:
114: url = URL_50M;
115: break;
116: case 100:
117: url = URL_100M;
118: break;
119: default:
120: fprintf(stderr, "\r%s: invalid parameter %s\n",
121: appname, *argv + 3);
122: exit(1);
123: }
124: }
125: else {
126: fprintf(stderr, "\r%s: invalid or unknown option %s\n",
127: appname, *argv);
128: exit(1);
129: }
130: }
131: else {
132: url = *argv;
133: }
134: }
135: }
136:
137: /* print separator line */
138: if(prtsep) {
139: printf("-------------------------------------------------\n");
140: }
141: /* print localtime */
142: if(prttime) {
143: time_t t = time(NULL);
144: printf("Localtime: %s", ctime(&t));
145: }
146:
147: /* init libcurl */
148: curl_global_init(CURL_GLOBAL_ALL);
149:
150: /* init the curl session */
151: curl_handle = curl_easy_init();
152:
153: /* specify URL to get */
154: curl_easy_setopt(curl_handle, CURLOPT_URL, url);
155:
156: /* send all data to this function */
157: curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteCallback);
158:
159: /* some servers don't like requests that are made without a user-agent
160: field, so we provide one */
161: curl_easy_setopt(curl_handle, CURLOPT_USERAGENT,
162: "libcurl-speedchecker/" CHKSPEED_VERSION);
163:
164: /* get it! */
165: res = curl_easy_perform(curl_handle);
166:
167: if(CURLE_OK == res) {
168: curl_off_t val;
169:
170: /* check for bytes downloaded */
171: res = curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD_T, &val);
172: if((CURLE_OK == res) && (val>0))
173: printf("Data downloaded: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", val);
174:
175: /* check for total download time */
176: res = curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME_T, &val);
177: if((CURLE_OK == res) && (val>0))
178: printf("Total download time: %" CURL_FORMAT_CURL_OFF_T ".%06ld sec.\n",
179: (val / 1000000), (long)(val % 1000000));
180:
181: /* check for average download speed */
182: res = curl_easy_getinfo(curl_handle, CURLINFO_SPEED_DOWNLOAD_T, &val);
183: if((CURLE_OK == res) && (val>0))
184: printf("Average download speed: %" CURL_FORMAT_CURL_OFF_T
185: " kbyte/sec.\n", val / 1024);
186:
187: if(prtall) {
188: /* check for name resolution time */
189: res = curl_easy_getinfo(curl_handle, CURLINFO_NAMELOOKUP_TIME_T, &val);
190: if((CURLE_OK == res) && (val>0))
191: printf("Name lookup time: %" CURL_FORMAT_CURL_OFF_T ".%06ld sec.\n",
192: (val / 1000000), (long)(val % 1000000));
193:
194: /* check for connect time */
195: res = curl_easy_getinfo(curl_handle, CURLINFO_CONNECT_TIME_T, &val);
196: if((CURLE_OK == res) && (val>0))
197: printf("Connect time: %" CURL_FORMAT_CURL_OFF_T ".%06ld sec.\n",
198: (val / 1000000), (long)(val % 1000000));
199: }
200: }
201: else {
202: fprintf(stderr, "Error while fetching '%s' : %s\n",
203: url, curl_easy_strerror(res));
204: }
205:
206: /* cleanup curl stuff */
207: curl_easy_cleanup(curl_handle);
208:
209: /* we're done with libcurl, so clean it up */
210: curl_global_cleanup();
211:
212: return 0;
213: }
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