Module Name: src
Committed By: christos
Date: Tue Aug 21 10:41:00 UTC 2018
Added Files:
src/tests/lib/libc/sys: t_sendrecv.c
Log Message:
Now add the file I really meant to add.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/tests/lib/libc/sys/t_sendrecv.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: src/tests/lib/libc/sys/t_sendrecv.c
diff -u /dev/null src/tests/lib/libc/sys/t_sendrecv.c:1.1
--- /dev/null Tue Aug 21 06:41:00 2018
+++ src/tests/lib/libc/sys/t_sendrecv.c Tue Aug 21 06:41:00 2018
@@ -0,0 +1,135 @@
+/* $NetBSD: t_sendrecv.c,v 1.1 2018/08/21 10:41:00 christos Exp $ */
+
+/*-
+ * Copyright (c) 2018 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/cdefs.h>
+__RCSID("$NetBSD: t_sendrecv.c,v 1.1 2018/08/21 10:41:00 christos Exp $");
+
+#include <atf-c.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <string.h>
+#include <stdint.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sched.h>
+
+ATF_TC(sendrecv_basic);
+ATF_TC_HEAD(sendrecv_basic, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "A basic test of sendrecv(2)");
+}
+
+#define COUNT 1000
+
+union packet {
+ uint8_t buf[1316];
+ uintmax_t seq;
+};
+
+static void
+sender(int fd)
+{
+ union packet p;
+ ssize_t n;
+ p.seq = 0;
+ for (size_t i = 0; i < COUNT; i++) {
+ for (; (n = send(fd, &p, sizeof(p), 0)) == sizeof(p);
+ p.seq++)
+ continue;
+// printf(">>%zd %d %ju\n", n, errno, p.seq);
+ ATF_REQUIRE_MSG(errno == ENOBUFS, "send %s", strerror(errno));
+ }
+}
+
+static void
+receiver(int fd)
+{
+ union packet p;
+ ssize_t n;
+ uintmax_t seq = 0;
+
+ for (size_t i = 0; i < COUNT; i++) {
+ while ((n = recv(fd, &p, sizeof(p), 0), sizeof(p))
+ == sizeof(p))
+ {
+// if (p.seq != seq)
+// printf("%ju != %ju\n", p.seq, seq);
+ seq = p.seq + 1;
+ }
+ printf("<<%zd %d %ju\n", n, errno, seq);
+ if (n == 0)
+ return;
+ ATF_REQUIRE_EQ(n, -1);
+ ATF_REQUIRE_MSG(errno == ENOBUFS, "recv %s", strerror(errno));
+ }
+}
+
+ATF_TC_BODY(sendrecv_basic, tc)
+{
+ int fd[2], error;
+
+ error = socketpair(AF_UNIX, SOCK_DGRAM, 0, fd);
+// error = pipe(fd);
+ ATF_REQUIRE_MSG(error != -1, "socketpair failed (%s)", strerror(errno));
+
+ switch (fork()) {
+ case -1:
+ ATF_REQUIRE_MSG(errno == 0,
+ "socketpair failed (%s)", strerror(errno));
+ /*NOTREACHED*/
+ case 0:
+ sched_yield();
+ sender(fd[0]);
+ close(fd[0]);
+ exit(EXIT_SUCCESS);
+ /*NOTREACHED*/
+ default:
+ receiver(fd[1]);
+ return;
+ }
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, sendrecv_basic);
+
+ return atf_no_error();
+}
