fixes #105 Want NNG_OPT_TCP_NODELAY option

fixes #106 TCP keepalive tuning

3 files changed, 40 insertions, 0 deletions

diff --git a/src/platform/posix/posix_aio.h b/src/platform/posix/posix_aio.h
index 2073f6d6..15dae06c 100644
--- a/src/platform/posix/posix_aio.h
+++ b/src/platform/posix/posix_aio.h
@@ -31,6 +31,8 @@ extern void nni_posix_pipedesc_send(nni_posix_pipedesc *, nni_aio *);
 extern void nni_posix_pipedesc_close(nni_posix_pipedesc *);
 extern int  nni_posix_pipedesc_peername(nni_posix_pipedesc *, nni_sockaddr *);
 extern int  nni_posix_pipedesc_sockname(nni_posix_pipedesc *, nni_sockaddr *);
+extern int  nni_posix_pipedesc_set_nodelay(nni_posix_pipedesc *, bool);
+extern int  nni_posix_pipedesc_set_keepalive(nni_posix_pipedesc *, bool);
 
 extern int  nni_posix_epdesc_init(nni_posix_epdesc **);
 extern void nni_posix_epdesc_set_local(nni_posix_epdesc *, void *, size_t);
diff --git a/src/platform/posix/posix_pipedesc.c b/src/platform/posix/posix_pipedesc.c
index 72251372..f9cbb94b 100644
--- a/src/platform/posix/posix_pipedesc.c
+++ b/src/platform/posix/posix_pipedesc.c
@@ -16,6 +16,8 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
 #include <poll.h>
 #include <stdbool.h>
 #include <stdlib.h>
@@ -335,6 +337,30 @@ nni_posix_pipedesc_sockname(nni_posix_pipedesc *pd, nni_sockaddr *sa)
 }
 
 int
+nni_posix_pipedesc_set_nodelay(nni_posix_pipedesc *pd, bool nodelay)
+{
+	int val = nodelay ? 1 : 0;
+
+	if (setsockopt(pd->node.fd, IPPROTO_TCP, TCP_NODELAY, &val,
+	        sizeof(val)) != 0) {
+		return (nni_plat_errno(errno));
+	}
+	return (0);
+}
+
+int
+nni_posix_pipedesc_set_keepalive(nni_posix_pipedesc *pd, bool keep)
+{
+	int val = keep ? 1 : 0;
+
+	if (setsockopt(pd->node.fd, SOL_SOCKET, SO_KEEPALIVE, &val,
+	        sizeof(val)) != 0) {
+		return (nni_plat_errno(errno));
+	}
+	return (0);
+}
+
+int
 nni_posix_pipedesc_init(nni_posix_pipedesc **pdp, int fd)
 {
 	nni_posix_pipedesc *pd;
diff --git a/src/platform/posix/posix_tcp.c b/src/platform/posix/posix_tcp.c
index 9caa157f..81ec330b 100644
--- a/src/platform/posix/posix_tcp.c
+++ b/src/platform/posix/posix_tcp.c
@@ -125,6 +125,18 @@ nni_plat_tcp_pipe_sockname(nni_plat_tcp_pipe *p, nni_sockaddr *sa)
 }
 
 int
+nni_plat_tcp_pipe_set_keepalive(nni_plat_tcp_pipe *p, bool v)
+{
+	return (nni_posix_pipedesc_set_keepalive((void *) p, v));
+}
+
+int
+nni_plat_tcp_pipe_set_nodelay(nni_plat_tcp_pipe *p, bool v)
+{
+	return (nni_posix_pipedesc_set_nodelay((void *) p, v));
+}
+
+int
 nni_plat_tcp_ntop(const nni_sockaddr *sa, char *ipstr, char *portstr)
 {
 	const void *ap;