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/*
* Copyright (c) 2019 Apple Inc. All rights reserved.
*
* @APPLE_APACHE_LICENSE_HEADER_START@
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @APPLE_APACHE_LICENSE_HEADER_END@
*/
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <errno.h>
#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
#include <unistd.h>
#elif defined(_WIN32)
#include <Windows.h>
#endif
#include <bsdtests.h>
#include "dispatch_test.h"
#include <dispatch/dispatch.h>
int
main() {
dispatch_test_start(NULL);
#if defined(_WIN32)
dispatch_fd_t readFD, writeFD;
if (!CreatePipe((PHANDLE)&readFD, (PHANDLE)&writeFD, NULL, 0)) {
test_long("CreatePipe", GetLastError(), ERROR_SUCCESS);
test_stop();
_Exit(EXIT_FAILURE);
}
#else
int pipe_fds[2] = { -1, -1 };
int pipe_err = pipe(pipe_fds);
int readFD = pipe_fds[0];
int writeFD = pipe_fds[1];
if (pipe_err) {
test_errno("pipe", errno, 0);
test_stop();
_Exit(EXIT_FAILURE);
}
#endif
printf("readFD=%lld, writeFD=%lld\n", (long long)readFD, (long long)writeFD);
dispatch_queue_t q = dispatch_queue_create("q", NULL);
dispatch_io_t io = dispatch_io_create(DISPATCH_IO_STREAM, readFD, q, ^(int err) {
printf("cleanup, err=%d\n", err);
dispatch_test_fd_close(readFD);
printf("all done\n");
test_stop();
_Exit(EXIT_SUCCESS);
});
dispatch_io_set_low_water(io, 0);
dispatch_io_read(io, 0, UINT_MAX, q, ^(bool done, dispatch_data_t data, int err) {
printf("read: \%d, %zu, %d\n", done, data == NULL ? 0 : dispatch_data_get_size(data), err);
if (data != NULL && dispatch_data_get_size(data) > 0) {
// will only happen once
printf("closing writeFD\n");
dispatch_test_fd_close(writeFD);
dispatch_after(DISPATCH_TIME_NOW + 1, q, ^{
dispatch_io_close(io, 0);
});
}
});
dispatch_resume(io);
printf("writing\n");
dispatch_test_fd_write(writeFD, "x", 1);
printf("wrtten\n");
dispatch_main();
}
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