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-rw-r--r--docs/examples/progressfunc.c39
1 files changed, 29 insertions, 10 deletions
diff --git a/docs/examples/progressfunc.c b/docs/examples/progressfunc.c
index 52a3c0834..51d75366c 100644
--- a/docs/examples/progressfunc.c
+++ b/docs/examples/progressfunc.c
@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, 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
@@ -27,11 +27,25 @@
#include <stdio.h>
#include <curl/curl.h>
-#define STOP_DOWNLOAD_AFTER_THIS_MANY_BYTES 6000
+#if LIBCURL_VERSION_NUM >= 0x073d00
+/* In libcurl 7.61.0, support was added for extracting the time in plain
+ microseconds. Older libcurl versions are stuck in using 'double' for this
+ information so we complicate this example a bit by supporting either
+ approach. */
+#define TIME_IN_US 1 /* microseconds */
+#define TIMETYPE curl_off_t
+#define TIMEOPT CURLINFO_TOTAL_TIME_T
#define MINIMAL_PROGRESS_FUNCTIONALITY_INTERVAL 3000000
+#else
+#define TIMETYPE double
+#define TIMEOPT CURLINFO_TOTAL_TIME
+#define MINIMAL_PROGRESS_FUNCTIONALITY_INTERVAL 3
+#endif
+
+#define STOP_DOWNLOAD_AFTER_THIS_MANY_BYTES 6000
struct myprogress {
- curl_off_t lastruntime;
+ TIMETYPE lastruntime; /* type depends on version, see above */
CURL *curl;
};
@@ -42,17 +56,21 @@ static int xferinfo(void *p,
{
struct myprogress *myp = (struct myprogress *)p;
CURL *curl = myp->curl;
- curl_off_t curtime = 0;
+ TIMETYPE curtime = 0;
- curl_easy_getinfo(curl, CURLINFO_TOTAL_TIME_T, &curtime);
+ curl_easy_getinfo(curl, TIMEOPT, &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;
+#ifdef TIME_IN_US
fprintf(stderr, "TOTAL TIME: %" CURL_FORMAT_CURL_OFF_T ".%06ld\r\n",
(curtime / 1000000), (long)(curtime % 1000000));
+#else
+ fprintf(stderr, "TOTAL TIME: %f \r\n", curtime);
+#endif
}
fprintf(stderr, "UP: %" CURL_FORMAT_CURL_OFF_T " of %" CURL_FORMAT_CURL_OFF_T
@@ -65,6 +83,7 @@ static int xferinfo(void *p,
return 0;
}
+#if LIBCURL_VERSION_NUM < 0x072000
/* for libcurl older than 7.32.0 (CURLOPT_PROGRESSFUNCTION) */
static int older_progress(void *p,
double dltotal, double dlnow,
@@ -76,7 +95,7 @@ static int older_progress(void *p,
(curl_off_t)ultotal,
(curl_off_t)ulnow);
}
-
+#endif
int main(void)
{
@@ -91,10 +110,6 @@ int main(void)
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
- curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, older_progress);
- /* pass the struct pointer into the progress function */
- curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, &prog);
-
#if LIBCURL_VERSION_NUM >= 0x072000
/* xferinfo was introduced in 7.32.0, no earlier libcurl versions will
compile as they won't have the symbols around.
@@ -110,6 +125,10 @@ int main(void)
/* pass the struct pointer into the xferinfo function, note that this is
an alias to CURLOPT_PROGRESSDATA */
curl_easy_setopt(curl, CURLOPT_XFERINFODATA, &prog);
+#else
+ curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, older_progress);
+ /* pass the struct pointer into the progress function */
+ curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, &prog);
#endif
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);