X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fsessiond-comm%2Finet.c;h=b2bd65d9029672efb47a4469ef3632b30a649740;hb=27babd3a0a164f71d4dc02884ef20099ddfc6755;hp=f9ea17dbf975b246448e463b69ff64978745c9bc;hpb=88a5db7000bfa9a29be7e843e580aae64e9e7b95;p=lttng-tools.git

diff --git a/src/common/sessiond-comm/inet.c b/src/common/sessiond-comm/inet.c
index f9ea17dbf..b2bd65d90 100644
--- a/src/common/sessiond-comm/inet.c
+++ b/src/common/sessiond-comm/inet.c
@@ -26,8 +26,7 @@
 #include <unistd.h>
 #include <errno.h>
 
-#include <common/defaults.h>
-#include <common/error.h>
+#include <common/common.h>
 
 #include "inet.h"
 
@@ -47,7 +46,7 @@ static const struct lttcomm_proto_ops inet_ops = {
 /*
  * Creates an PF_INET socket.
  */
-__attribute__((visibility("hidden")))
+LTTNG_HIDDEN
 int lttcomm_create_inet_sock(struct lttcomm_sock *sock, int type, int proto)
 {
 	int val = 1, ret;
@@ -78,7 +77,7 @@ error:
 /*
  * Bind socket and return.
  */
-__attribute__((visibility("hidden")))
+LTTNG_HIDDEN
 int lttcomm_bind_inet_sock(struct lttcomm_sock *sock)
 {
 	int ret;
@@ -95,7 +94,7 @@ int lttcomm_bind_inet_sock(struct lttcomm_sock *sock)
 /*
  * Connect PF_INET socket.
  */
-__attribute__((visibility("hidden")))
+LTTNG_HIDDEN
 int lttcomm_connect_inet_sock(struct lttcomm_sock *sock)
 {
 	int ret, closeret;
@@ -103,10 +102,7 @@ int lttcomm_connect_inet_sock(struct lttcomm_sock *sock)
 	ret = connect(sock->fd, (struct sockaddr *) &sock->sockaddr.addr.sin,
 			sizeof(sock->sockaddr.addr.sin));
 	if (ret < 0) {
-		/*
-		 * Don't print message on connect error, because connect is used in
-		 * normal execution to detect if sessiond is alive.
-		 */
+		PERROR("connect");
 		goto error_connect;
 	}
 
@@ -125,7 +121,7 @@ error_connect:
  * Do an accept(2) on the sock and return the new lttcomm socket. The socket
  * MUST be bind(2) before.
  */
-__attribute__((visibility("hidden")))
+LTTNG_HIDDEN
 struct lttcomm_sock *lttcomm_accept_inet_sock(struct lttcomm_sock *sock)
 {
 	int new_fd;
@@ -169,7 +165,7 @@ error:
 /*
  * Make the socket listen using LTTNG_SESSIOND_COMM_MAX_LISTEN.
  */
-__attribute__((visibility("hidden")))
+LTTNG_HIDDEN
 int lttcomm_listen_inet_sock(struct lttcomm_sock *sock, int backlog)
 {
 	int ret;
@@ -200,13 +196,14 @@ end:
  *
  * Return the size of received data.
  */
-__attribute__((visibility("hidden")))
+LTTNG_HIDDEN
 ssize_t lttcomm_recvmsg_inet_sock(struct lttcomm_sock *sock, void *buf,
 		size_t len, int flags)
 {
 	struct msghdr msg;
 	struct iovec iov[1];
 	ssize_t ret = -1;
+	size_t len_last;
 
 	memset(&msg, 0, sizeof(msg));
 
@@ -218,16 +215,21 @@ ssize_t lttcomm_recvmsg_inet_sock(struct lttcomm_sock *sock, void *buf,
 	msg.msg_name = (struct sockaddr *) &sock->sockaddr.addr.sin;
 	msg.msg_namelen = sizeof(sock->sockaddr.addr.sin);
 
-	if (flags == 0) {
-		flags = MSG_WAITALL;
-	}
-
 	do {
+		len_last = iov[0].iov_len;
 		ret = recvmsg(sock->fd, &msg, flags);
-	} while (ret < 0 && errno == EINTR);
+		if (ret > 0) {
+			iov[0].iov_base += ret;
+			iov[0].iov_len -= ret;
+			assert(ret <= len_last);
+		}
+	} while ((ret > 0 && ret < len_last) || (ret < 0 && errno == EINTR));
 	if (ret < 0) {
 		PERROR("recvmsg inet");
+	} else if (ret > 0) {
+		ret = len;
 	}
+	/* Else ret = 0 meaning an orderly shutdown. */
 
 	return ret;
 }
@@ -237,7 +239,7 @@ ssize_t lttcomm_recvmsg_inet_sock(struct lttcomm_sock *sock, void *buf,
  *
  * Return the size of sent data.
  */
-__attribute__((visibility("hidden")))
+LTTNG_HIDDEN
 ssize_t lttcomm_sendmsg_inet_sock(struct lttcomm_sock *sock, void *buf,
 		size_t len, int flags)
 {
@@ -280,7 +282,7 @@ ssize_t lttcomm_sendmsg_inet_sock(struct lttcomm_sock *sock, void *buf,
 /*
  * Shutdown cleanly and close.
  */
-__attribute__((visibility("hidden")))
+LTTNG_HIDDEN
 int lttcomm_close_inet_sock(struct lttcomm_sock *sock)
 {
 	int ret;