Page MenuHomeFreeBSD
Differential D25431 Diff 73590 tests/sys/kern/sendfile_helper.c

Changeset View

Standalone View

View Options

tests/sys/kern/sendfile_helper.c

  • This file was added.
PropertyOld ValueNew Value
svn:eol-stylenullnative
\ No newline at end of property
svn:keywordsnullFreeBSD=%H
\ No newline at end of property
svn:mime-typenulltext/plain
\ No newline at end of property
/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2020 Netflix, Inc.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#include <sys/types.h>
#include <err.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/uio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <pthread.h>
#include <sys/sysctl.h>
#include <stdbool.h>
#include <stdio.h>
markjUnsubmitted
Not Done
Inline Actions

These are not sorted properly. sys/types.h should come first, followed by the rest of sys/*, followed by user headers sorted alphabetically.

@cem is this a useful test case for D25428?

markj: These are not sorted properly. sys/types.h should come first, followed by the rest of sys/*…
cemUnsubmitted
Not Done
Inline Actions
$ clang-format -style=file testcase.c > testcase.c.new
$ diff -u testcase.c{,.new}
--- testcase.c  2020-06-24 11:45:15.287019000 -0700
+++ testcase.c.new      2020-06-24 11:45:32.647437000 -0700
@@ -1,14 +1,16 @@
 #include <sys/types.h>
-#include <err.h>
-#include <fcntl.h>
 #include <sys/socket.h>
-#include <netinet/in.h>
+#include <sys/sysctl.h>
 #include <sys/uio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
+
+#include <netinet/in.h>
+
+#include <err.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <pthread.h>
-#include <sys/sysctl.h>
 #include <stdbool.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
cem: ``` $ clang-format -style=file testcase.c > testcase.c.new $ diff -u testcase.c{,.new}…
int ls;
char buf[1024*1024];
bool accept_done = false;
bool read_done = false;
markjUnsubmitted
Not Done
Inline Actions

These can be declared static. The bools should probably be declared volatile as well, since they are accessed by multiple threads.

markj: These can be declared static. The bools should probably be declared volatile as well, since…
static void *
server(void *arg)
{
struct sockaddr_in sin;
ssize_t rv;
socklen_t slen;
int ss;
ssize_t readlen = (uintptr_t)arg;
ss = accept(ls, (void *)&sin, &slen);
if (ss < 0) {
err(1, "accept ls");
}
accept_done = true;
do {
rv = read(ss, buf, sizeof(buf));
if (rv == -1) {
err(2, "read receiver");
}
if (rv == 0) {
break;
}
readlen -= rv;
} while (readlen != 0);
read_done = true;
return NULL;
}
int
main(int argc, char **argv)
{
pthread_t pt;
struct sockaddr_in sin;
off_t start, len;
int fd, cs, on, flags, error;
if (argc != 5) {
errx(1, "usage: %s <file> <start> <len> <flags>",
getprogname());
}
start = strtoull(argv[2], NULL, 0);
len = strtoull(argv[3], NULL, 0);
flags = strtoul(argv[4], NULL, 0);
fd = open(argv[1], O_RDONLY);
if (fd < 0) {
err(1, "open");
}
ls = socket(PF_INET, SOCK_STREAM, 0);
if (ls < 0) {
err(1, "socket ls");
}
on = 1;
if (setsockopt(ls, SOL_SOCKET, SO_REUSEADDR, (void *)&on,
(socklen_t)sizeof(on)) < 0) {
err(1, "SO_REUSEADDR");
}
sin.sin_len = sizeof(sin);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(0x7f000001);
markjUnsubmitted
Not Done
Inline Actions

The constant can be replaced with INADDR_LOOPBACK.

markj: The constant can be replaced with INADDR_LOOPBACK.
sin.sin_port = htons(12345);
if (bind(ls, (void *)&sin, sizeof(sin)) < 0) {
markjUnsubmitted
Not Done
Inline Actions

It would be less fragile to allow the kernel to select an ephemeral port and then have the program get the bound port number using getsockname().

markj: It would be less fragile to allow the kernel to select an ephemeral port and then have the…
err(1, "bind ls");
}
if (listen(ls, 5) < 0) {
err(1, "listen ls");
}
error = pthread_create(&pt, NULL, server, (void *)(uintptr_t)len);
if (error) {
errno = error;
err(1, "pthread_create");
markjUnsubmitted
Not Done
Inline Actions

These two lines can be replaced by errc(1, error, "pthread_create");

markj: These two lines can be replaced by `errc(1, error, "pthread_create");`
}
cs = socket(PF_INET, SOCK_STREAM, 0);
if (cs < 0) {
err(1, "socket cs");
}
if (connect(cs, (void *)&sin, sizeof(sin)) < 0) {
err(1, "connect cs");
}
while (!accept_done) {
usleep(1000);
}
if (sendfile(fd, cs, start, len, NULL, NULL, flags) < 0) {
err(3, "sendfile");
}
while (!read_done) {
usleep(1000);
}
exit(0);
}