diff options
Diffstat (limited to 'docs/libcurl/curl_easy_recv.3')
| -rw-r--r-- | docs/libcurl/curl_easy_recv.3 | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/docs/libcurl/curl_easy_recv.3 b/docs/libcurl/curl_easy_recv.3 index 1ede5894..9de63649 100644 --- a/docs/libcurl/curl_easy_recv.3 +++ b/docs/libcurl/curl_easy_recv.3 @@ -5,7 +5,7 @@ .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * -.\" * Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al. +.\" * Copyright (C) 1998 - 2015, 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 @@ -41,9 +41,10 @@ data. \fBbuflen\fP is the maximum amount of data you can get in that buffer. The variable \fBn\fP points to will receive the number of received bytes. -To establish the connection, set \fBCURLOPT_CONNECT_ONLY\fP option before -calling \fIcurl_easy_perform(3)\fP. Note that \fIcurl_easy_recv(3)\fP does not -work on connections that were created without this option. +To establish the connection, set \fBCURLOPT_CONNECT_ONLY(3)\fP option before +calling \fIcurl_easy_perform(3)\fP or \cIcurl_multi_perform(3)\fP. Note that +\fIcurl_easy_recv(3)\fP does not work on connections that were created without +this option. You must ensure that the socket has data to read before calling \fIcurl_easy_recv(3)\fP, otherwise the call will return \fBCURLE_AGAIN\fP - @@ -59,8 +60,13 @@ On success, returns \fBCURLE_OK\fP, stores the received data into On failure, returns the appropriate error code. -If there is no data to read, the function returns \fBCURLE_AGAIN\fP. Use -your operating system facilities to wait until the data is ready, and retry. +If there is no data to read, the function returns \fBCURLE_AGAIN\fP. Use your +operating system facilities to wait until the data is ready, and retry. + +Reading exactly 0 bytes would indicate a closed connection. + +If there's no socket available to use from the previous transfer, this function +returns CURLE_UNSUPPORTED_PROTOCOL. .SH EXAMPLE See \fBsendrecv.c\fP in \fBdocs/examples\fP directory for usage example. .SH "SEE ALSO" |