Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 91 insertions, 0 deletions

diff --git a/src/spdk/lib/iscsi/acceptor.c b/src/spdk/lib/iscsi/acceptor.c
new file mode 100644
index 00000000..9b13de30
--- /dev/null
+++ b/src/spdk/lib/iscsi/acceptor.c
@@ -0,0 +1,91 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>.
+ *   Copyright (c) Intel Corporation.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "spdk/stdinc.h"
+
+#include "spdk/env.h"
+#include "spdk/thread.h"
+#include "spdk/log.h"
+#include "spdk/sock.h"
+#include "spdk/string.h"
+#include "iscsi/acceptor.h"
+#include "iscsi/conn.h"
+#include "iscsi/portal_grp.h"
+
+#define ACCEPT_TIMEOUT_US 1000 /* 1ms */
+
+static int
+spdk_iscsi_portal_accept(void *arg)
+{
+	struct spdk_iscsi_portal	*portal = arg;
+	struct spdk_sock		*sock;
+	int				rc;
+	int				count = 0;
+
+	if (portal->sock == NULL) {
+		return -1;
+	}
+
+	while (1) {
+		sock = spdk_sock_accept(portal->sock);
+		if (sock != NULL) {
+			rc = spdk_iscsi_conn_construct(portal, sock);
+			if (rc < 0) {
+				spdk_sock_close(&sock);
+				SPDK_ERRLOG("spdk_iscsi_connection_construct() failed\n");
+				break;
+			}
+			count++;
+		} else {
+			if (errno != EAGAIN && errno != EWOULDBLOCK) {
+				SPDK_ERRLOG("accept error(%d): %s\n", errno, spdk_strerror(errno));
+			}
+			break;
+		}
+	}
+
+	return count;
+}
+
+void
+spdk_iscsi_acceptor_start(struct spdk_iscsi_portal *p)
+{
+	p->acceptor_poller = spdk_poller_register(spdk_iscsi_portal_accept, p, ACCEPT_TIMEOUT_US);
+}
+
+void
+spdk_iscsi_acceptor_stop(struct spdk_iscsi_portal *p)
+{
+	spdk_poller_unregister(&p->acceptor_poller);
+}