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progress callback: can be called more than once per sec

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Daniel Stenberg
2010-04-26 15:37:39 +02:00
parent 107146676e
commit 2c1b0624ac
1 changed files with 5 additions and 5 deletions
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10
docs/libcurl/curl_easy_setopt.3
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@@ -246,11 +246,11 @@ argument in the opensocket callback set with \fICURLOPT_OPENSOCKETFUNCTION\fP.
Function pointer that should match the \fIcurl_progress_callback\fP prototype Function pointer that should match the \fIcurl_progress_callback\fP prototype
found in \fI<curl/curl.h>\fP. This function gets called by libcurl instead of found in \fI<curl/curl.h>\fP. This function gets called by libcurl instead of
its internal equivalent with a frequent interval during operation (roughly its internal equivalent with a frequent interval during operation (roughly
once per second) no matter if data is being transfered or not. Unknown/unused once per second or sooner) no matter if data is being transfered or not.
argument values passed to the callback will be set to zero (like if you only Unknown/unused argument values passed to the callback will be set to zero
download data, the upload size will remain 0). Returning a non-zero value from (like if you only download data, the upload size will remain 0). Returning a
this callback will cause libcurl to abort the transfer and return non-zero value from this callback will cause libcurl to abort the transfer and
\fICURLE_ABORTED_BY_CALLBACK\fP. return \fICURLE_ABORTED_BY_CALLBACK\fP.
If you transfer data with the multi interface, this function will not be If you transfer data with the multi interface, this function will not be
called during periods of idleness unless you call the appropriate libcurl called during periods of idleness unless you call the appropriate libcurl