[src/trunk]: src/tests/lib/libc/sys tests for recvmmsg

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/0e9772be72e2
branches:  trunk
changeset: 779847:0e9772be72e2
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Jun 22 18:45:23 2012 +0000

description:
tests for recvmmsg

diffstat:

 tests/lib/libc/sys/Makefile     |    3 +-
 tests/lib/libc/sys/t_recvmmsg.c |  161 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 163 insertions(+), 1 deletions(-)

diffs (182 lines):

diff -r 3633267ca4a7 -r 0e9772be72e2 tests/lib/libc/sys/Makefile
--- a/tests/lib/libc/sys/Makefile       Fri Jun 22 18:30:22 2012 +0000
+++ b/tests/lib/libc/sys/Makefile       Fri Jun 22 18:45:23 2012 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.25 2012/06/07 09:59:51 martin Exp $
+# $NetBSD: Makefile,v 1.26 2012/06/22 18:45:23 christos Exp $
 
 MKMAN= no
 
@@ -47,6 +47,7 @@
 TESTS_C+=              t_pipe2
 TESTS_C+=              t_posix_fadvise
 TESTS_C+=              t_poll
+TESTS_C+=              t_recvmmsg
 TESTS_C+=              t_revoke
 TESTS_C+=              t_select
 TESTS_C+=              t_setrlimit
diff -r 3633267ca4a7 -r 0e9772be72e2 tests/lib/libc/sys/t_recvmmsg.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/lib/libc/sys/t_recvmmsg.c   Fri Jun 22 18:45:23 2012 +0000
@@ -0,0 +1,161 @@
+/*     $NetBSD: t_recvmmsg.c,v 1.1 2012/06/22 18:45:23 christos Exp $  */
+
+/*-
+ * Copyright (c) 2012 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jared McNeill and 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_recvmmsg.c,v 1.1 2012/06/22 18:45:23 christos Exp $");
+
+#include <atf-c.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+
+#include <string.h>
+#include <time.h>
+#include <stdint.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sched.h>
+
+#define BUFSIZE        65536
+#define NPKTS  50
+
+#define min(a, b) ((a) < (b) ? (a) : (b))
+static int debug;
+
+
+ATF_TC(recvmmsg_basic);
+ATF_TC_HEAD(recvmmsg_basic, tc)
+{
+       atf_tc_set_md_var(tc, "descr", "A basic test of recvmmsg(2)");
+}
+
+ATF_TC_BODY(recvmmsg_basic, tc)
+{
+       int fd[2], error, i, cnt;
+       uint8_t *buf;
+       struct mmsghdr *mmsghdr;
+       struct iovec *iov;
+       unsigned int mmsgcnt, n;
+       int status;
+       off_t off;
+       uint8_t DGRAM[1316] = { 0, 2, 3, 4, 5, 6, 7, 8, 9, };
+       
+       error = socketpair(AF_UNIX, SOCK_DGRAM, 0, fd);
+       ATF_REQUIRE_MSG(error != -1, "socketpair failed (%s)", strerror(errno));
+
+       buf = malloc(BUFSIZE);
+       ATF_REQUIRE_MSG(buf != NULL, "malloc failed (%s)", strerror(errno));
+
+       mmsgcnt = BUFSIZE / sizeof(DGRAM);
+       mmsghdr = malloc(sizeof(*mmsghdr) * mmsgcnt);
+       ATF_REQUIRE_MSG(mmsghdr != NULL, "malloc failed (%s)", strerror(errno));
+       iov = malloc(sizeof(*iov) * mmsgcnt);
+       ATF_REQUIRE_MSG(iov != NULL, "malloc failed (%s)", strerror(errno));
+
+       for (off = 0, n = 0; n < mmsgcnt; n++) {
+               iov[n].iov_base = buf + off;
+               iov[n].iov_len = sizeof(DGRAM);
+               off += iov[n].iov_len;
+               mmsghdr[n].msg_hdr.msg_iov = &iov[n];
+               mmsghdr[n].msg_hdr.msg_iovlen = 1;
+               mmsghdr[n].msg_hdr.msg_name = NULL;
+               mmsghdr[n].msg_hdr.msg_namelen = 0;
+       }
+
+       switch (fork()) {
+       case -1:
+               ATF_REQUIRE_MSG(0, "fork failed (%s)", strerror(errno));
+               break;
+
+       case 0:
+               n = NPKTS;
+               if (debug)
+                   printf("waiting for %u messages (max %u per syscall)\n", n,
+                       mmsgcnt);
+               while (n > 0) {
+                       struct timespec ts = { 1, 0 };
+                       cnt = recvmmsg(fd[1], mmsghdr, min(mmsgcnt, n),
+                           MSG_WAITALL, &ts);
+                       ATF_REQUIRE_MSG(cnt != -1, "recvmmsg failed (%s)",
+                           strerror(errno));
+                       ATF_REQUIRE_MSG(cnt != 0, "recvmmsg timeout");
+                       if (debug)
+                               printf("recvmmsg: got %u messages\n", cnt);
+                       for (i = 0; i < cnt; i++) {
+                               ATF_CHECK_EQ_MSG(mmsghdr[i].msg_len,
+                                   sizeof(DGRAM), "packet length");
+                               ATF_CHECK_EQ_MSG(
+                                   ((uint8_t *)iov[i].iov_base)[0],
+                                   NPKTS - n + i, "packet contents");
+                       }
+                       n -= cnt;
+               }
+               if (debug)
+                       printf("done!\n");
+               exit(0);
+               /*NOTREACHED*/
+       default:
+               sched_yield();
+
+               for (n = 0; n < NPKTS; n++) {
+                       if (debug)
+                               printf("sending packet %u/%u...\n", (n+1),
+                                   NPKTS);
+                       do {
+                               DGRAM[0] = n;
+                               error = send(fd[0], DGRAM, sizeof(DGRAM), 0);
+                       } while (error == -1 && errno == ENOBUFS);
+                       if (error == -1)
+                               ATF_REQUIRE_MSG(error != -1, "send failed (%s)",
+                                   strerror(errno));
+               }
+               error = wait(&status);
+               ATF_REQUIRE_MSG(error != -1, "wait failed (%s)",
+                   strerror(errno));
+               break;
+       }
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+       ATF_TP_ADD_TC(tp, recvmmsg_basic);
+
+       return atf_no_error();
+}