tildefriends/deps/libuv/test/test-pipe-close-stdout-read-stdin.c

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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef _WIN32
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
#include <sys/types.h>
#ifdef __APPLE__
#include <TargetConditionals.h>
#endif
#include "uv.h"
#include "task.h"
void alloc_buffer(uv_handle_t *handle, size_t suggested_size, uv_buf_t* buf)
{
static char buffer[1024];
buf->base = buffer;
buf->len = sizeof(buffer);
}
void read_stdin(uv_stream_t *stream, ssize_t nread, const uv_buf_t* buf)
{
if (nread < 0) {
uv_close((uv_handle_t*)stream, NULL);
return;
}
}
/*
* This test is a reproduction of joyent/libuv#1419 .
*/
TEST_IMPL(pipe_close_stdout_read_stdin) {
int r = -1;
int pid;
int fd[2];
int status;
char buf;
uv_pipe_t stdin_pipe;
r = pipe(fd);
ASSERT_OK(r);
#if defined(__APPLE__) && (TARGET_OS_TV || TARGET_OS_WATCH)
pid = -1;
#else
pid = fork();
#endif
if (pid == 0) {
/*
* Make the read side of the pipe our stdin.
* The write side will be closed by the parent process.
*/
close(fd[1]);
/* block until write end of pipe is closed */
r = read(fd[0], &buf, 1);
ASSERT(-1 <= r && r <= 1);
close(0);
r = dup(fd[0]);
ASSERT_NE(r, -1);
/* Create a stream that reads from the pipe. */
r = uv_pipe_init(uv_default_loop(), (uv_pipe_t *)&stdin_pipe, 0);
ASSERT_OK(r);
r = uv_pipe_open((uv_pipe_t *)&stdin_pipe, 0);
ASSERT_OK(r);
r = uv_read_start((uv_stream_t *)&stdin_pipe, alloc_buffer, read_stdin);
ASSERT_OK(r);
/*
* Because the other end of the pipe was closed, there should
* be no event left to process after one run of the event loop.
* Otherwise, it means that events were not processed correctly.
*/
ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_NOWAIT));
} else {
/*
* Close both ends of the pipe so that the child
* get a POLLHUP event when it tries to read from
* the other end.
*/
close(fd[1]);
close(fd[0]);
waitpid(pid, &status, 0);
ASSERT(WIFEXITED(status) && WEXITSTATUS(status) == 0);
}
MAKE_VALGRIND_HAPPY(uv_default_loop());
return 0;
}
#else
typedef int file_has_no_tests; /* ISO C forbids an empty translation unit. */
#endif /* ifndef _WIN32 */