Add tests for aio(4) completion notification via signals and threads

Reviewed by:	jhb
MFC after:	3 weeks
Sponsored by:	Spectra Logic Corp
Differential Revision:	https://reviews.freebsd.org/D11468
This commit is contained in:
Alan Somers 2017-07-13 22:53:13 +00:00
parent d600f474c6
commit 314b447f66

View File

@ -52,6 +52,7 @@
#include <fcntl.h>
#include <libutil.h>
#include <limits.h>
#include <semaphore.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
@ -88,6 +89,8 @@ struct aio_context {
int ac_seconds;
};
static sem_t completions;
/*
* Fill a buffer given a seed that can be fed into srandom() to initialize
@ -166,6 +169,70 @@ poll(struct aiocb *aio)
}
}
static void
sigusr1_handler(int sig __unused)
{
ATF_REQUIRE_EQ(0, sem_post(&completions));
}
static void
thr_handler(union sigval sv __unused)
{
ATF_REQUIRE_EQ(0, sem_post(&completions));
}
static ssize_t
poll_signaled(struct aiocb *aio)
{
int error;
ATF_REQUIRE_EQ(0, sem_wait(&completions));
error = aio_error(aio);
switch (error) {
case EINPROGRESS:
errno = EINTR;
return (-1);
case 0:
return (aio_return(aio));
default:
return (error);
}
}
/*
* Setup a signal handler for signal delivery tests
* This isn't thread safe, but it's ok since ATF runs each testcase in a
* separate process
*/
static struct sigevent*
setup_signal(void)
{
static struct sigevent sev;
ATF_REQUIRE_EQ(0, sem_init(&completions, false, 0));
sev.sigev_notify = SIGEV_SIGNAL;
sev.sigev_signo = SIGUSR1;
ATF_REQUIRE(SIG_ERR != signal(SIGUSR1, sigusr1_handler));
return (&sev);
}
/*
* Setup a thread for thread delivery tests
* This isn't thread safe, but it's ok since ATF runs each testcase in a
* separate process
*/
static struct sigevent*
setup_thread()
{
static struct sigevent sev;
ATF_REQUIRE_EQ(0, sem_init(&completions, false, 0));
sev.sigev_notify = SIGEV_THREAD;
sev.sigev_notify_function = thr_handler;
sev.sigev_notify_attributes = NULL;
return (&sev);
}
static ssize_t
suspend(struct aiocb *aio)
{
@ -195,7 +262,7 @@ waitcomplete(struct aiocb *aio)
* file descriptor.
*/
static void
aio_write_test(struct aio_context *ac, completion comp)
aio_write_test(struct aio_context *ac, completion comp, struct sigevent *sev)
{
struct aiocb aio;
ssize_t len;
@ -205,6 +272,8 @@ aio_write_test(struct aio_context *ac, completion comp)
aio.aio_nbytes = ac->ac_buflen;
aio.aio_fildes = ac->ac_write_fd;
aio.aio_offset = 0;
if (sev)
aio.aio_sigevent = *sev;
if (aio_write(&aio) < 0)
atf_tc_fail("aio_write failed: %s", strerror(errno));
@ -222,7 +291,7 @@ aio_write_test(struct aio_context *ac, completion comp)
* provided file descriptor.
*/
static void
aio_read_test(struct aio_context *ac, completion comp)
aio_read_test(struct aio_context *ac, completion comp, struct sigevent *sev)
{
struct aiocb aio;
ssize_t len;
@ -233,6 +302,8 @@ aio_read_test(struct aio_context *ac, completion comp)
aio.aio_nbytes = ac->ac_buflen;
aio.aio_fildes = ac->ac_read_fd;
aio.aio_offset = 0;
if (sev)
aio.aio_sigevent = *sev;
if (aio_read(&aio) < 0)
atf_tc_fail("aio_read failed: %s", strerror(errno));
@ -262,7 +333,7 @@ aio_read_test(struct aio_context *ac, completion comp)
#define FILE_PATHNAME "testfile"
static void
aio_file_test(completion comp)
aio_file_test(completion comp, struct sigevent *sev)
{
struct aio_context ac;
int fd;
@ -274,34 +345,46 @@ aio_file_test(completion comp)
ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno));
aio_context_init(&ac, fd, fd, FILE_LEN);
aio_write_test(&ac, comp);
aio_read_test(&ac, comp);
aio_write_test(&ac, comp, sev);
aio_read_test(&ac, comp, sev);
close(fd);
}
ATF_TC_WITHOUT_HEAD(file_poll);
ATF_TC_BODY(file_poll, tc)
{
aio_file_test(poll);
aio_file_test(poll, NULL);
}
ATF_TC_WITHOUT_HEAD(file_signal);
ATF_TC_BODY(file_signal, tc)
{
aio_file_test(poll_signaled, setup_signal());
}
ATF_TC_WITHOUT_HEAD(file_suspend);
ATF_TC_BODY(file_suspend, tc)
{
aio_file_test(suspend);
aio_file_test(suspend, NULL);
}
ATF_TC_WITHOUT_HEAD(file_thread);
ATF_TC_BODY(file_thread, tc)
{
aio_file_test(poll_signaled, setup_thread());
}
ATF_TC_WITHOUT_HEAD(file_waitcomplete);
ATF_TC_BODY(file_waitcomplete, tc)
{
aio_file_test(waitcomplete);
aio_file_test(waitcomplete, NULL);
}
#define FIFO_LEN 256
#define FIFO_PATHNAME "testfifo"
static void
aio_fifo_test(completion comp)
aio_fifo_test(completion comp, struct sigevent *sev)
{
int error, read_fd = -1, write_fd = -1;
struct aio_context ac;
@ -329,8 +412,8 @@ aio_fifo_test(completion comp)
}
aio_context_init(&ac, read_fd, write_fd, FIFO_LEN);
aio_write_test(&ac, comp);
aio_read_test(&ac, comp);
aio_write_test(&ac, comp, sev);
aio_read_test(&ac, comp, sev);
close(read_fd);
close(write_fd);
@ -339,24 +422,36 @@ aio_fifo_test(completion comp)
ATF_TC_WITHOUT_HEAD(fifo_poll);
ATF_TC_BODY(fifo_poll, tc)
{
aio_fifo_test(poll);
aio_fifo_test(poll, NULL);
}
ATF_TC_WITHOUT_HEAD(fifo_signal);
ATF_TC_BODY(fifo_signal, tc)
{
aio_fifo_test(poll_signaled, setup_signal());
}
ATF_TC_WITHOUT_HEAD(fifo_suspend);
ATF_TC_BODY(fifo_suspend, tc)
{
aio_fifo_test(suspend);
aio_fifo_test(suspend, NULL);
}
ATF_TC_WITHOUT_HEAD(fifo_thread);
ATF_TC_BODY(fifo_thread, tc)
{
aio_fifo_test(poll_signaled, setup_thread());
}
ATF_TC_WITHOUT_HEAD(fifo_waitcomplete);
ATF_TC_BODY(fifo_waitcomplete, tc)
{
aio_fifo_test(waitcomplete);
aio_fifo_test(waitcomplete, NULL);
}
#define UNIX_SOCKETPAIR_LEN 256
static void
aio_unix_socketpair_test(completion comp)
aio_unix_socketpair_test(completion comp, struct sigevent *sev)
{
struct aio_context ac;
struct rusage ru_before, ru_after;
@ -370,12 +465,12 @@ aio_unix_socketpair_test(completion comp)
aio_context_init(&ac, sockets[0], sockets[1], UNIX_SOCKETPAIR_LEN);
ATF_REQUIRE_MSG(getrusage(RUSAGE_SELF, &ru_before) != -1,
"getrusage failed: %s", strerror(errno));
aio_write_test(&ac, comp);
aio_write_test(&ac, comp, sev);
ATF_REQUIRE_MSG(getrusage(RUSAGE_SELF, &ru_after) != -1,
"getrusage failed: %s", strerror(errno));
ATF_REQUIRE(ru_after.ru_msgsnd == ru_before.ru_msgsnd + 1);
ru_before = ru_after;
aio_read_test(&ac, comp);
aio_read_test(&ac, comp, sev);
ATF_REQUIRE_MSG(getrusage(RUSAGE_SELF, &ru_after) != -1,
"getrusage failed: %s", strerror(errno));
ATF_REQUIRE(ru_after.ru_msgrcv == ru_before.ru_msgrcv + 1);
@ -387,19 +482,31 @@ aio_unix_socketpair_test(completion comp)
ATF_TC_WITHOUT_HEAD(socket_poll);
ATF_TC_BODY(socket_poll, tc)
{
aio_unix_socketpair_test(poll);
aio_unix_socketpair_test(poll, NULL);
}
ATF_TC_WITHOUT_HEAD(socket_signal);
ATF_TC_BODY(socket_signal, tc)
{
aio_unix_socketpair_test(poll_signaled, setup_signal());
}
ATF_TC_WITHOUT_HEAD(socket_suspend);
ATF_TC_BODY(socket_suspend, tc)
{
aio_unix_socketpair_test(suspend);
aio_unix_socketpair_test(suspend, NULL);
}
ATF_TC_WITHOUT_HEAD(socket_thread);
ATF_TC_BODY(socket_thread, tc)
{
aio_unix_socketpair_test(poll_signaled, setup_thread());
}
ATF_TC_WITHOUT_HEAD(socket_waitcomplete);
ATF_TC_BODY(socket_waitcomplete, tc)
{
aio_unix_socketpair_test(waitcomplete);
aio_unix_socketpair_test(waitcomplete, NULL);
}
struct aio_pty_arg {
@ -409,7 +516,7 @@ struct aio_pty_arg {
#define PTY_LEN 256
static void
aio_pty_test(completion comp)
aio_pty_test(completion comp, struct sigevent *sev)
{
struct aio_context ac;
int read_fd, write_fd;
@ -436,8 +543,8 @@ aio_pty_test(completion comp)
}
aio_context_init(&ac, read_fd, write_fd, PTY_LEN);
aio_write_test(&ac, comp);
aio_read_test(&ac, comp);
aio_write_test(&ac, comp, sev);
aio_read_test(&ac, comp, sev);
close(read_fd);
close(write_fd);
@ -446,24 +553,36 @@ aio_pty_test(completion comp)
ATF_TC_WITHOUT_HEAD(pty_poll);
ATF_TC_BODY(pty_poll, tc)
{
aio_pty_test(poll);
aio_pty_test(poll, NULL);
}
ATF_TC_WITHOUT_HEAD(pty_signal);
ATF_TC_BODY(pty_signal, tc)
{
aio_pty_test(poll_signaled, setup_signal());
}
ATF_TC_WITHOUT_HEAD(pty_suspend);
ATF_TC_BODY(pty_suspend, tc)
{
aio_pty_test(suspend);
aio_pty_test(suspend, NULL);
}
ATF_TC_WITHOUT_HEAD(pty_thread);
ATF_TC_BODY(pty_thread, tc)
{
aio_pty_test(poll_signaled, setup_thread());
}
ATF_TC_WITHOUT_HEAD(pty_waitcomplete);
ATF_TC_BODY(pty_waitcomplete, tc)
{
aio_pty_test(waitcomplete);
aio_pty_test(waitcomplete, NULL);
}
#define PIPE_LEN 256
static void
aio_pipe_test(completion comp)
aio_pipe_test(completion comp, struct sigevent *sev)
{
struct aio_context ac;
int pipes[2];
@ -475,8 +594,8 @@ aio_pipe_test(completion comp)
"pipe failed: %s", strerror(errno));
aio_context_init(&ac, pipes[0], pipes[1], PIPE_LEN);
aio_write_test(&ac, comp);
aio_read_test(&ac, comp);
aio_write_test(&ac, comp, sev);
aio_read_test(&ac, comp, sev);
close(pipes[0]);
close(pipes[1]);
@ -485,19 +604,31 @@ aio_pipe_test(completion comp)
ATF_TC_WITHOUT_HEAD(pipe_poll);
ATF_TC_BODY(pipe_poll, tc)
{
aio_pipe_test(poll);
aio_pipe_test(poll, NULL);
}
ATF_TC_WITHOUT_HEAD(pipe_signal);
ATF_TC_BODY(pipe_signal, tc)
{
aio_pipe_test(poll_signaled, setup_signal());
}
ATF_TC_WITHOUT_HEAD(pipe_suspend);
ATF_TC_BODY(pipe_suspend, tc)
{
aio_pipe_test(suspend);
aio_pipe_test(suspend, NULL);
}
ATF_TC_WITHOUT_HEAD(pipe_thread);
ATF_TC_BODY(pipe_thread, tc)
{
aio_pipe_test(poll_signaled, setup_thread());
}
ATF_TC_WITHOUT_HEAD(pipe_waitcomplete);
ATF_TC_BODY(pipe_waitcomplete, tc)
{
aio_pipe_test(waitcomplete);
aio_pipe_test(waitcomplete, NULL);
}
#define MD_LEN GLOBAL_MAX
@ -532,7 +663,7 @@ aio_md_cleanup(void)
}
static void
aio_md_test(completion comp)
aio_md_test(completion comp, struct sigevent *sev)
{
int error, fd, mdctl_fd, unit;
char pathname[PATH_MAX];
@ -571,8 +702,8 @@ aio_md_test(completion comp)
"opening %s failed: %s", pathname, strerror(errno));
aio_context_init(&ac, fd, fd, MD_LEN);
aio_write_test(&ac, comp);
aio_read_test(&ac, comp);
aio_write_test(&ac, comp, sev);
aio_read_test(&ac, comp, sev);
close(fd);
}
@ -585,13 +716,28 @@ ATF_TC_HEAD(md_poll, tc)
}
ATF_TC_BODY(md_poll, tc)
{
aio_md_test(poll);
aio_md_test(poll, NULL);
}
ATF_TC_CLEANUP(md_poll, tc)
{
aio_md_cleanup();
}
ATF_TC_WITH_CLEANUP(md_signal);
ATF_TC_HEAD(md_signal, tc)
{
atf_tc_set_md_var(tc, "require.user", "root");
}
ATF_TC_BODY(md_signal, tc)
{
aio_md_test(poll_signaled, setup_signal());
}
ATF_TC_CLEANUP(md_signal, tc)
{
aio_md_cleanup();
}
ATF_TC_WITH_CLEANUP(md_suspend);
ATF_TC_HEAD(md_suspend, tc)
{
@ -600,13 +746,28 @@ ATF_TC_HEAD(md_suspend, tc)
}
ATF_TC_BODY(md_suspend, tc)
{
aio_md_test(suspend);
aio_md_test(suspend, NULL);
}
ATF_TC_CLEANUP(md_suspend, tc)
{
aio_md_cleanup();
}
ATF_TC_WITH_CLEANUP(md_thread);
ATF_TC_HEAD(md_thread, tc)
{
atf_tc_set_md_var(tc, "require.user", "root");
}
ATF_TC_BODY(md_thread, tc)
{
aio_md_test(poll_signaled, setup_thread());
}
ATF_TC_CLEANUP(md_thread, tc)
{
aio_md_cleanup();
}
ATF_TC_WITH_CLEANUP(md_waitcomplete);
ATF_TC_HEAD(md_waitcomplete, tc)
{
@ -615,7 +776,7 @@ ATF_TC_HEAD(md_waitcomplete, tc)
}
ATF_TC_BODY(md_waitcomplete, tc)
{
aio_md_test(waitcomplete);
aio_md_test(waitcomplete, NULL);
}
ATF_TC_CLEANUP(md_waitcomplete, tc)
{
@ -968,28 +1129,40 @@ ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, file_poll);
ATF_TP_ADD_TC(tp, file_signal);
ATF_TP_ADD_TC(tp, file_suspend);
ATF_TP_ADD_TC(tp, file_thread);
ATF_TP_ADD_TC(tp, file_waitcomplete);
ATF_TP_ADD_TC(tp, fifo_poll);
ATF_TP_ADD_TC(tp, fifo_signal);
ATF_TP_ADD_TC(tp, fifo_suspend);
ATF_TP_ADD_TC(tp, fifo_thread);
ATF_TP_ADD_TC(tp, fifo_waitcomplete);
ATF_TP_ADD_TC(tp, socket_poll);
ATF_TP_ADD_TC(tp, socket_signal);
ATF_TP_ADD_TC(tp, socket_suspend);
ATF_TP_ADD_TC(tp, socket_thread);
ATF_TP_ADD_TC(tp, socket_waitcomplete);
ATF_TP_ADD_TC(tp, pty_poll);
ATF_TP_ADD_TC(tp, pty_signal);
ATF_TP_ADD_TC(tp, pty_suspend);
ATF_TP_ADD_TC(tp, pty_thread);
ATF_TP_ADD_TC(tp, pty_waitcomplete);
ATF_TP_ADD_TC(tp, pipe_poll);
ATF_TP_ADD_TC(tp, pipe_signal);
ATF_TP_ADD_TC(tp, pipe_suspend);
ATF_TP_ADD_TC(tp, pipe_thread);
ATF_TP_ADD_TC(tp, pipe_waitcomplete);
ATF_TP_ADD_TC(tp, md_poll);
ATF_TP_ADD_TC(tp, md_signal);
ATF_TP_ADD_TC(tp, md_suspend);
ATF_TP_ADD_TC(tp, md_thread);
ATF_TP_ADD_TC(tp, md_waitcomplete);
ATF_TP_ADD_TC(tp, aio_fsync_test);
ATF_TP_ADD_TC(tp, aio_large_read_test);
ATF_TP_ADD_TC(tp, aio_socket_two_reads);
ATF_TP_ADD_TC(tp, aio_socket_blocking_short_write);
ATF_TP_ADD_TC(tp, aio_socket_short_write_cancel);
ATF_TP_ADD_TC(tp, aio_fsync_test);
return (atf_no_error());
}