diff options
Diffstat (limited to 'lib/connect.c')
| -rw-r--r-- | lib/connect.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/connect.c b/lib/connect.c index c1206cee5..7727bf017 100644 --- a/lib/connect.c +++ b/lib/connect.c @@ -704,6 +704,27 @@ static void nosigpipe(struct connectdata *conn, #define nosigpipe(x,y) #endif +#ifdef WIN32 +/* When you run a program that uses the Windows Sockets API, you may + experience slow performance when you copy data to a TCP server. + + http://support.microsoft.com/kb/823764 + + Work-around: Make the Socket Send Buffer Size Larger Than the Program Send + Buffer Size + +*/ +static void sndbufset(struct connectdata *conn, + curl_socket_t sockfd) +{ + int val = CURL_MAX_WRITE_SIZE + 32; + setsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, (const char *)&val, sizeof(val)); +} +#else +#define sndbufset(x,y) +#endif + + /* singleipconnect() connects to the given IP only, and it may return without having connected if used from the multi interface. */ static curl_socket_t @@ -807,6 +828,8 @@ singleipconnect(struct connectdata *conn, nosigpipe(conn, sockfd); + sndbufset(conn, sockfd); + if(data->set.fsockopt) { /* activate callback for setting socket options */ error = data->set.fsockopt(data->set.sockopt_client, |