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cosmopolitan/test/libc/sock/connect_test.c

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Improve threading and i/o routines - On Windows connect() can now be interrupted by a signal; connect() w/ O_NONBLOCK will now raise EINPROGRESS; and connect() with SO_SNDTIMEO will raise ETIMEDOUT after the interval has elapsed. - We now get the AcceptEx(), ConnectEx(), and TransmitFile() functions from the WIN32 API the officially blessed way, using WSAIoctl(). - Do nothing on Windows when fsync() is called on a directory handle. This was raising EACCES earlier becaues GENERIC_WRITE is required on the handle. It's possible to FlushFileBuffers() a directory handle if it's opened with write access but MSDN doesn't document what it does. If you have any idea, please let us know! - Prefer manual reset event objects for read() and write() on Windows. - Do some code cleanup on our dlmalloc customizations. - Fix errno type error in Windows blocking routines. - Make the futex polyfill simpler and faster.
2023-10-13 01:53:17 +00:00
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
flip et / noet in modelines `et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
2023-12-08 03:11:56 +00:00
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
Improve threading and i/o routines - On Windows connect() can now be interrupted by a signal; connect() w/ O_NONBLOCK will now raise EINPROGRESS; and connect() with SO_SNDTIMEO will raise ETIMEDOUT after the interval has elapsed. - We now get the AcceptEx(), ConnectEx(), and TransmitFile() functions from the WIN32 API the officially blessed way, using WSAIoctl(). - Do nothing on Windows when fsync() is called on a directory handle. This was raising EACCES earlier becaues GENERIC_WRITE is required on the handle. It's possible to FlushFileBuffers() a directory handle if it's opened with write access but MSDN doesn't document what it does. If you have any idea, please let us know! - Prefer manual reset event objects for read() and write() on Windows. - Do some code cleanup on our dlmalloc customizations. - Fix errno type error in Windows blocking routines. - Make the futex polyfill simpler and faster.
2023-10-13 01:53:17 +00:00
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2023 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/atomic.h"
#include "libc/calls/calls.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/kprintf.h"
#include "libc/runtime/runtime.h"
#include "libc/sock/sock.h"
#include "libc/sock/struct/pollfd.h"
#include "libc/sock/struct/sockaddr.h"
#include "libc/sysv/consts/af.h"
#include "libc/sysv/consts/ipproto.h"
#include "libc/sysv/consts/limits.h"
#include "libc/sysv/consts/poll.h"
#include "libc/sysv/consts/sock.h"
#include "libc/testlib/subprocess.h"
#include "libc/testlib/testlib.h"
#include "libc/thread/thread.h"
TEST(connect, nonblocking) {
Apply clang-format update to repo (#1154) Commit bc6c183 introduced a bunch of discrepancies between what files look like in the repo and what clang-format says they should look like. However, there were already a few discrepancies prior to that. Most of these discrepancies seemed to be unintentional, but a few of them were load-bearing (e.g., a #include that violated header ordering needing something to have been #defined by a 'later' #include.) I opted to take what I hope is a relatively smooth-brained approach: I reverted the .clang-format change, ran clang-format on the whole repo, reapplied the .clang-format change, reran clang-format again, and then reverted the commit that contained the first run. Thus the full effect of this PR should only be to apply the changed formatting rules to the repo, and from skimming the results, this seems to be the case. My work can be checked by applying the short, manual commits, and then rerunning the command listed in the autogenerated commits (those whose messages I have prefixed auto:) and seeing if your results agree. It might be that the other diffs should be fixed at some point but I'm leaving that aside for now. fd '\.c(c|pp)?$' --print0| xargs -0 clang-format -i
2024-04-25 17:38:00 +00:00
if (IsFreebsd())
return; // TODO(jart): why did this start flaking?
if (IsOpenbsd())
return; // TODO(jart): why did this start freezing?
Improve threading and i/o routines - On Windows connect() can now be interrupted by a signal; connect() w/ O_NONBLOCK will now raise EINPROGRESS; and connect() with SO_SNDTIMEO will raise ETIMEDOUT after the interval has elapsed. - We now get the AcceptEx(), ConnectEx(), and TransmitFile() functions from the WIN32 API the officially blessed way, using WSAIoctl(). - Do nothing on Windows when fsync() is called on a directory handle. This was raising EACCES earlier becaues GENERIC_WRITE is required on the handle. It's possible to FlushFileBuffers() a directory handle if it's opened with write access but MSDN doesn't document what it does. If you have any idea, please let us know! - Prefer manual reset event objects for read() and write() on Windows. - Do some code cleanup on our dlmalloc customizations. - Fix errno type error in Windows blocking routines. - Make the futex polyfill simpler and faster.
2023-10-13 01:53:17 +00:00
char buf[16] = {0};
atomic_uint *sem = _mapshared(sizeof(unsigned));
uint32_t addrsize = sizeof(struct sockaddr_in);
struct sockaddr_in addr = {
.sin_family = AF_INET,
.sin_addr.s_addr = htonl(0x7f000001),
};
ASSERT_SYS(0, 3, socket(AF_INET, SOCK_STREAM, IPPROTO_TCP));
ASSERT_SYS(0, 0, bind(3, (struct sockaddr *)&addr, sizeof(addr)));
ASSERT_SYS(0, 0, getsockname(3, (struct sockaddr *)&addr, &addrsize));
ASSERT_SYS(0, 0, listen(3, SOMAXCONN));
SPAWN(fork);
Apply clang-format update to repo (#1154) Commit bc6c183 introduced a bunch of discrepancies between what files look like in the repo and what clang-format says they should look like. However, there were already a few discrepancies prior to that. Most of these discrepancies seemed to be unintentional, but a few of them were load-bearing (e.g., a #include that violated header ordering needing something to have been #defined by a 'later' #include.) I opted to take what I hope is a relatively smooth-brained approach: I reverted the .clang-format change, ran clang-format on the whole repo, reapplied the .clang-format change, reran clang-format again, and then reverted the commit that contained the first run. Thus the full effect of this PR should only be to apply the changed formatting rules to the repo, and from skimming the results, this seems to be the case. My work can be checked by applying the short, manual commits, and then rerunning the command listed in the autogenerated commits (those whose messages I have prefixed auto:) and seeing if your results agree. It might be that the other diffs should be fixed at some point but I'm leaving that aside for now. fd '\.c(c|pp)?$' --print0| xargs -0 clang-format -i
2024-04-25 17:38:00 +00:00
while (!*sem)
pthread_yield();
Improve threading and i/o routines - On Windows connect() can now be interrupted by a signal; connect() w/ O_NONBLOCK will now raise EINPROGRESS; and connect() with SO_SNDTIMEO will raise ETIMEDOUT after the interval has elapsed. - We now get the AcceptEx(), ConnectEx(), and TransmitFile() functions from the WIN32 API the officially blessed way, using WSAIoctl(). - Do nothing on Windows when fsync() is called on a directory handle. This was raising EACCES earlier becaues GENERIC_WRITE is required on the handle. It's possible to FlushFileBuffers() a directory handle if it's opened with write access but MSDN doesn't document what it does. If you have any idea, please let us know! - Prefer manual reset event objects for read() and write() on Windows. - Do some code cleanup on our dlmalloc customizations. - Fix errno type error in Windows blocking routines. - Make the futex polyfill simpler and faster.
2023-10-13 01:53:17 +00:00
ASSERT_SYS(0, 4, accept(3, (struct sockaddr *)&addr, &addrsize));
ASSERT_SYS(0, 2, read(4, buf, 16)); // hi
ASSERT_SYS(0, 5, write(4, "hello", 5));
ASSERT_SYS(0, 3, read(4, buf, 16)); // bye
PARENT();
ASSERT_SYS(0, 0, close(3));
ASSERT_SYS(0, 3, socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, IPPROTO_TCP));
ASSERT_SYS(EINPROGRESS, -1,
connect(3, (struct sockaddr *)&addr, sizeof(addr)));
if (!(IsLinux() || IsNetbsd())) {
// this doens't work on rhel7 and netbsd
ASSERT_SYS(EALREADY, -1,
connect(3, (struct sockaddr *)&addr, sizeof(addr)));
}
ASSERT_SYS(EAGAIN, -1, read(3, buf, 16));
*sem = 1;
{ // wait until connected
struct pollfd pfd = {3, POLLOUT};
ASSERT_SYS(0, 1, poll(&pfd, 1, -1));
ASSERT_TRUE(!!(POLLOUT & pfd.revents));
}
ASSERT_SYS(0, 2, write(3, "hi", 2));
{ // wait for other process to send us stuff
struct pollfd pfd = {3, POLLIN};
ASSERT_SYS(0, 1, poll(&pfd, 1, -1));
ASSERT_TRUE(!!(POLLIN & pfd.revents));
}
ASSERT_SYS(0, 5, read(3, buf, 16));
ASSERT_STREQ("hello", buf);
ASSERT_SYS(0, 3, write(3, "bye", 3));
ASSERT_SYS(0, 0, close(3));
WAIT(exit, 0);
munmap(sem, sizeof(unsigned));
}
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