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authorRob Ward <rob@rob-ward.co.uk>2011-12-05 23:07:38 +0100
committerDaniel Stenberg <daniel@haxx.se>2011-12-05 23:13:34 +0100
commit7e4daaf908307220e408754f84a5706efe230a38 (patch)
treebd3628c82d00ab47942a6f9ea437ab3b2942058b /docs/examples
parent3bbe219be2071a4fa97784da556d810500700002 (diff)
progress function example: include timed interval
Adds a timer based off of CURLINFO_TOTAL_TIME that is used to perform certain actions after a minimum amount of time has passed using the progress function. As a consequence the curl handle is now also passed into the progress function. Progress example now also includes an example of how to retreive the TOTAL_TIME and print it out.
Diffstat (limited to 'docs/examples')
-rw-r--r--docs/examples/progressfunc.c28
1 files changed, 27 insertions, 1 deletions
diff --git a/docs/examples/progressfunc.c b/docs/examples/progressfunc.c
index 42ed3287b..a49806028 100644
--- a/docs/examples/progressfunc.c
+++ b/docs/examples/progressfunc.c
@@ -22,12 +22,32 @@
#include <stdio.h>
#include <curl/curl.h>
-#define STOP_DOWNLOAD_AFTER_THIS_MANY_BYTES 6000
+#define STOP_DOWNLOAD_AFTER_THIS_MANY_BYTES 6000
+#define MINIMAL_PROGRESS_FUNCTIONALITY_INTERVAL 3
+
+struct myprogress {
+ double lastruntime;
+ CURL *curl;
+};
static int progress(void *p,
double dltotal, double dlnow,
double ultotal, double ulnow)
{
+ struct myprogress *myp = (struct myprogress *)p;
+ CURL *curl = myp->curl;
+ double curtime = 0;
+
+ curl_easy_getinfo(curl, CURLINFO_TOTAL_TIME, &curtime);
+
+ /* under certain circumstances it may be desirable for certain functionality
+ to only run every N seconds, in order to do this the transaction time can
+ be used */
+ if((curtime - myp->lastruntime) >= MINIMAL_PROGRESS_FUNCTIONALITY_INTERVAL) {
+ myp->lastruntime = curtime;
+ fprintf(stderr, "TOTAL TIME: %f \r\n", curtime);
+ }
+
fprintf(stderr, "UP: %g of %g DOWN: %g of %g\r\n",
ulnow, ultotal, dlnow, dltotal);
@@ -40,11 +60,17 @@ int main(void)
{
CURL *curl;
CURLcode res=0;
+ struct myprogress prog;
curl = curl_easy_init();
if(curl) {
+ prog.lastruntime = 0;
+ prog.curl = curl;
+
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress);
+ /* pass the struct pointer into the progress function */
+ curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, &prog);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
res = curl_easy_perform(curl);