From: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
To: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk,
akpm@linux-foundation.org, soheil.kdev@gmail.com, arnd@arndb.de,
shuochen@google.com, linux-man@vger.kernel.org,
Willem de Bruijn <willemb@google.com>
Subject: [PATCH v3 2/2] selftests/filesystems: expand epoll with epoll_pwait2
Date: Wed, 18 Nov 2020 09:46:17 -0500 [thread overview]
Message-ID: <20201118144617.986860-4-willemdebruijn.kernel@gmail.com> (raw)
In-Reply-To: <20201118144617.986860-1-willemdebruijn.kernel@gmail.com>
From: Willem de Bruijn <willemb@google.com>
Code coverage for the epoll_pwait2 syscall.
epoll62: Repeat basic test epoll1, but exercising the new syscall.
epoll63: Pass a timespec and exercise the timeout wakeup path.
Signed-off-by: Willem de Bruijn <willemb@google.com>
---
.../filesystems/epoll/epoll_wakeup_test.c | 70 +++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c b/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c
index 8f82f99f7748..4d5656978746 100644
--- a/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c
+++ b/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
#define _GNU_SOURCE
+#include <asm/unistd.h>
#include <poll.h>
#include <unistd.h>
#include <assert.h>
@@ -21,6 +22,18 @@ struct epoll_mtcontext
pthread_t waiter;
};
+#ifndef __NR_epoll_pwait2
+#define __NR_epoll_pwait2 -1
+#endif
+
+static inline int sys_epoll_pwait2(int fd, struct epoll_event *events,
+ int maxevents,
+ const struct timespec *timeout,
+ const sigset_t *sigset)
+{
+ return syscall(__NR_epoll_pwait2, fd, events, maxevents, timeout, sigset);
+}
+
static void signal_handler(int signum)
{
}
@@ -3377,4 +3390,61 @@ TEST(epoll61)
close(ctx.evfd);
}
+/* Equivalent to basic test epoll1, but exercising epoll_pwait2. */
+TEST(epoll62)
+{
+ int efd;
+ int sfd[2];
+ struct epoll_event e;
+
+ ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+ efd = epoll_create(1);
+ ASSERT_GE(efd, 0);
+
+ e.events = EPOLLIN;
+ ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+ ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+ EXPECT_EQ(sys_epoll_pwait2(efd, &e, 1, NULL, NULL), 1);
+ EXPECT_EQ(sys_epoll_pwait2(efd, &e, 1, NULL, NULL), 1);
+
+ close(efd);
+ close(sfd[0]);
+ close(sfd[1]);
+}
+
+/* Epoll_pwait2 basic timeout test. */
+TEST(epoll63)
+{
+ const int cfg_delay_ms = 10;
+ unsigned long long tdiff;
+ struct timespec ts;
+ int efd;
+ int sfd[2];
+ struct epoll_event e;
+
+ ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+ efd = epoll_create(1);
+ ASSERT_GE(efd, 0);
+
+ e.events = EPOLLIN;
+ ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+ ts.tv_sec = 0;
+ ts.tv_nsec = cfg_delay_ms * 1000 * 1000;
+
+ tdiff = msecs();
+ EXPECT_EQ(sys_epoll_pwait2(efd, &e, 1, &ts, NULL), 0);
+ tdiff = msecs() - tdiff;
+
+ EXPECT_GE(tdiff, cfg_delay_ms);
+
+ close(efd);
+ close(sfd[0]);
+ close(sfd[1]);
+}
+
TEST_HARNESS_MAIN
--
2.29.2.454.gaff20da3a2-goog
prev parent reply other threads:[~2020-11-18 14:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-18 14:46 [PATCH v3 0/2] add epoll_pwait2 syscall Willem de Bruijn
2020-11-18 14:46 ` [PATCH v3 1/2] epoll: add nsec timeout support with epoll_pwait2 Willem de Bruijn
2020-11-18 15:00 ` Matthew Wilcox
2020-11-18 15:10 ` Willem de Bruijn
2020-11-18 15:37 ` Arnd Bergmann
2020-11-18 15:59 ` David Laight
2020-11-19 14:19 ` Willem de Bruijn
2020-11-19 14:31 ` Matthew Wilcox
2020-11-19 15:37 ` Willem de Bruijn
2020-11-19 15:45 ` Arnd Bergmann
2020-11-19 20:13 ` Willem de Bruijn
2020-11-20 8:13 ` Arnd Bergmann
2020-11-20 16:01 ` Willem de Bruijn
2020-11-20 19:23 ` Arnd Bergmann
2020-11-20 22:28 ` Willem de Bruijn
2020-11-21 9:27 ` Arnd Bergmann
2020-12-10 17:33 ` Willem de Bruijn
2020-12-10 20:34 ` Arnd Bergmann
2020-12-10 22:59 ` Willem de Bruijn
2021-01-11 20:06 ` Willem de Bruijn
2020-11-18 16:21 ` Willem de Bruijn
2020-11-18 16:50 ` Arnd Bergmann
2020-11-19 3:22 ` Willem de Bruijn
2020-11-18 14:46 ` [PATCH manpages RFC] epoll_wait.2: add epoll_pwait2 Willem de Bruijn
2020-11-18 14:46 ` Willem de Bruijn [this message]
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