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Set keep alive on TCP level

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This commit is contained in:
valenok 2011-05-26 21:12:44 +01:00
parent be6162ff2e
commit abc230eb34
1 changed files with 11 additions and 3 deletions
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14
mongoose.c
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@ -3333,7 +3333,7 @@ static int parse_port_string(const struct vec *vec, struct socket *so) {
static int set_ports_option(struct mg_context *ctx) {
const char *list = ctx->config[LISTENING_PORTS];
int reuseaddr = 1, success = 1;
int on = 1, success = 1;
SOCKET sock;
struct vec vec;
struct socket so, *listener;
@ -3350,9 +3350,17 @@ static int set_ports_option(struct mg_context *ctx) {
#if !defined(_WIN32)
// On Windows, SO_REUSEADDR is recommended only for
// broadcast UDP sockets
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &reuseaddr,
sizeof(reuseaddr)) != 0 ||
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &on,
sizeof(on)) != 0 ||
#endif // !_WIN32
// Set TCP keep-alive. This needed because if HTTP-level
// keep-alive is enabled, and client resets the connection,
// server won't get TCP FIN or RST and will keep the connection
// open forever. With TCP keep-alive, next keep-alive
// handshake will figure out that the client is down and
// will close the server end.
setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, &on,
sizeof(on)) != 0 ||
bind(sock, &so.lsa.u.sa, so.lsa.len) != 0 ||
listen(sock, 20) != 0) {
closesocket(sock);