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authorDaniel Stenberg <daniel@haxx.se>2011-09-13 22:47:34 +0200
committerDaniel Stenberg <daniel@haxx.se>2011-09-13 22:48:55 +0200
commit6790a543d4b692e0f62971804606fdcbcf84a292 (patch)
tree19ec95eb63809c0641584fe8a6653b31a75f6341
parent2411adb40bad8717d1da542bdff5e22cf2ae1a2b (diff)
progressfunc: a simple CURLOPT_PROGRESSFUNCTION example
-rw-r--r--docs/examples/.gitignore1
-rw-r--r--docs/examples/Makefile.inc3
-rw-r--r--docs/examples/progressfunc.c58
3 files changed, 61 insertions, 1 deletions
diff --git a/docs/examples/.gitignore b/docs/examples/.gitignore
index 7443de010..2ee9df154 100644
--- a/docs/examples/.gitignore
+++ b/docs/examples/.gitignore
@@ -26,6 +26,7 @@ multi-single
persistant
post-callback
postit2
+progressfunc
resolve
rtsp
sendrecv
diff --git a/docs/examples/Makefile.inc b/docs/examples/Makefile.inc
index d1ae9ddbb..bf7337dd8 100644
--- a/docs/examples/Makefile.inc
+++ b/docs/examples/Makefile.inc
@@ -4,7 +4,8 @@ check_PROGRAMS = 10-at-a-time anyauthput cookie_interface debug fileupload \
https multi-app multi-debugcallback multi-double multi-post multi-single \
persistant post-callback postit2 sepheaders simple simplepost simplessl \
sendrecv httpcustomheader certinfo chkspeed ftpgetinfo ftp-wildcard \
- smtp-multi simplesmtp smtp-tls rtsp externalsocket resolve
+ smtp-multi simplesmtp smtp-tls rtsp externalsocket resolve \
+ progressfunc
# These examples require external dependencies that may not be commonly
# available on POSIX systems, so don't bother attempting to compile them here.
diff --git a/docs/examples/progressfunc.c b/docs/examples/progressfunc.c
new file mode 100644
index 000000000..42ed3287b
--- /dev/null
+++ b/docs/examples/progressfunc.c
@@ -0,0 +1,58 @@
+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include <stdio.h>
+#include <curl/curl.h>
+
+#define STOP_DOWNLOAD_AFTER_THIS_MANY_BYTES 6000
+
+static int progress(void *p,
+ double dltotal, double dlnow,
+ double ultotal, double ulnow)
+{
+ fprintf(stderr, "UP: %g of %g DOWN: %g of %g\r\n",
+ ulnow, ultotal, dlnow, dltotal);
+
+ if(dlnow > STOP_DOWNLOAD_AFTER_THIS_MANY_BYTES)
+ return 1;
+ return 0;
+}
+
+int main(void)
+{
+ CURL *curl;
+ CURLcode res=0;
+
+ curl = curl_easy_init();
+ if(curl) {
+ curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
+ curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress);
+ curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
+ res = curl_easy_perform(curl);
+
+ if(res)
+ fprintf(stderr, "%s\n", curl_easy_strerror(res));
+
+ /* always cleanup */
+ curl_easy_cleanup(curl);
+ }
+ return (int)res;
+}