aboutsummaryrefslogtreecommitdiff
path: root/docs/libcurl/opts
diff options
context:
space:
mode:
authorDaniel Stenberg <daniel@haxx.se>2018-08-18 16:17:05 +0200
committerDaniel Stenberg <daniel@haxx.se>2018-09-06 10:53:39 +0200
commit2825f46d950ca9b0e269ed8dc6a97c5238a17c30 (patch)
tree1869f93855474b2fe4469351b0dd5ef890bb1fb1 /docs/libcurl/opts
parent87fefe5ebfa152386396b8e232c7b5b0609f6f35 (diff)
CURLOPT_UPLOAD_BUFFERSIZE: set upload buffer size
This is step 3 of #2888. Fixes #2888 Closes #2896
Diffstat (limited to 'docs/libcurl/opts')
-rw-r--r--docs/libcurl/opts/CURLOPT_UPLOAD_BUFFERSIZE.369
-rw-r--r--docs/libcurl/opts/Makefile.inc1
2 files changed, 70 insertions, 0 deletions
diff --git a/docs/libcurl/opts/CURLOPT_UPLOAD_BUFFERSIZE.3 b/docs/libcurl/opts/CURLOPT_UPLOAD_BUFFERSIZE.3
new file mode 100644
index 000000000..c35888cbf
--- /dev/null
+++ b/docs/libcurl/opts/CURLOPT_UPLOAD_BUFFERSIZE.3
@@ -0,0 +1,69 @@
+.\" **************************************************************************
+.\" * _ _ ____ _
+.\" * Project ___| | | | _ \| |
+.\" * / __| | | | |_) | |
+.\" * | (__| |_| | _ <| |___
+.\" * \___|\___/|_| \_\_____|
+.\" *
+.\" * 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
+.\" * are also available at https://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.
+.\" *
+.\" **************************************************************************
+.\"
+.TH CURLOPT_UPLOAD_BUFFERSIZE 3 "18 Aug 2018" "libcurl 7.62.0" "curl_easy_setopt options"
+.SH NAME
+CURLOPT_UPLOAD_BUFFERSIZE \- set preferred upload buffer size
+.SH SYNOPSIS
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_UPLOAD_BUFFERSIZE, long size);
+.SH DESCRIPTION
+Pass a long specifying your preferred \fIsize\fP (in bytes) for the upload
+buffer in libcurl. It makes libcurl uses a larger buffer that gets passed to
+the next layer in the stack to get sent off. In some setups and for some
+protocols, there's a huge performance benefit of having a larger upload
+buffer.
+
+This is just treated as a request, not an order. You cannot be guaranteed to
+actually get the given size.
+
+The upload buffer size is by default 64 kilobytes. The maximum buffer size
+allowed to be set is 2 megabytes. The minimum buffer size allowed to be set is
+16 kilobytes.
+
+Since curl 7.61.1 the upload buffer is allocated on-demand - so if the handle
+isn't used for upload, this buffer will not be allocated at all.
+.SH DEFAULT
+64 kB
+.SH PROTOCOLS
+All
+.SH EXAMPLE
+.nf
+CURL *curl = curl_easy_init();
+if(curl) {
+ curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com/foo.bin");
+
+ /* ask libcurl to allocate a larger upload buffer */
+ curl_easy_setopt(curl, CURLOPT_UPLOAD_BUFFERSIZE, 120000L);
+
+ ret = curl_easy_perform(curl);
+
+ curl_easy_cleanup(curl);
+}
+.fi
+.SH AVAILABILITY
+Added in 7.62.0.
+.SH RETURN VALUE
+Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
+.SH "SEE ALSO"
+.BR CURLOPT_BUFFERSIZE "(3), " CURLOPT_READFUNCTION "(3), "
diff --git a/docs/libcurl/opts/Makefile.inc b/docs/libcurl/opts/Makefile.inc
index d65a82073..b7f664a38 100644
--- a/docs/libcurl/opts/Makefile.inc
+++ b/docs/libcurl/opts/Makefile.inc
@@ -327,6 +327,7 @@ man_MANS = \
CURLOPT_UNIX_SOCKET_PATH.3 \
CURLOPT_UNRESTRICTED_AUTH.3 \
CURLOPT_UPLOAD.3 \
+ CURLOPT_UPLOAD_BUFFERSIZE.3 \
CURLOPT_URL.3 \
CURLOPT_USERAGENT.3 \
CURLOPT_USERNAME.3 \