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connect: implement TCP Fast Open for Linux

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Closes #660
This commit is contained in:
Alessandro Ghedini 2016-04-03 13:08:28 +01:00 • committed by Daniel Stenberg
parent d49087f6bc
commit 03de4e4b21
4 changed files with 20 additions and 6 deletions
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15
lib/sendf.c
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@ -254,7 +254,17 @@ ssize_t Curl_send_plain(struct connectdata *conn, int num,
const void *mem, size_t len, CURLcode *code)
{
curl_socket_t sockfd = conn->sock[num];
ssize_t bytes_written = swrite(sockfd, mem, len);
ssize_t bytes_written;
#ifdef MSG_FASTOPEN /* Linux */
if(conn->bits.tcp_fastopen) {
bytes_written = sendto(sockfd, mem, len, MSG_FASTOPEN,
conn->ip_addr->ai_addr, conn->ip_addr->ai_addrlen);
conn->bits.tcp_fastopen = FALSE;
}
else
#endif
bytes_written = swrite(sockfd, mem, len);
*code = CURLE_OK;
if(-1 == bytes_written) {
@ -268,7 +278,8 @@ ssize_t Curl_send_plain(struct connectdata *conn, int num,
/* errno may be EWOULDBLOCK or on some systems EAGAIN when it returned
due to its inability to send off data without blocking. We therefor
treat both error codes the same here */
(EWOULDBLOCK == err) || (EAGAIN == err) || (EINTR == err)
(EWOULDBLOCK == err) || (EAGAIN == err) || (EINTR == err) ||
(EINPROGRESS == err)
#endif
) {
/* this is just a case of EWOULDBLOCK */