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/* Copyright (c) 2015, Ben Noordhuis <info@bnoordhuis.nl>
*
* 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 "uv.h"
#include "task.h"
#include <string.h> /* memset */
#ifndef _WIN32
#include <unistd.h> /* close */
#endif
struct thread_ctx {
uv_barrier_t barrier;
uv_file fd;
};
static void thread_main(void* arg) {
struct thread_ctx* ctx;
uv_fs_t req;
uv_buf_t bufs[1];
char buf[4096];
ssize_t n;
int uv_errno;
bufs[0] = uv_buf_init(buf, sizeof(buf));
ctx = arg;
uv_barrier_wait(&ctx->barrier);
uv_sleep(100); /* make sure we are forcing the writer to block a bit */
do {
uv_errno = uv_fs_read(NULL, &req, ctx->fd, bufs, 1, -1, NULL);
n = req.result;
uv_fs_req_cleanup(&req);
} while (n > 0 || (n == -1 && uv_errno == UV_EINTR));
ASSERT_OK(n);
}
#ifdef _WIN32
static void write_cb(uv_write_t* req, int status) {
ASSERT_OK(status);
req->handle = NULL; /* signal completion of write_cb */
}
#endif
#ifdef _WIN32
#define NWRITES (10 << 16)
#else
#define NWRITES (10 << 20)
#endif
TEST_IMPL(pipe_set_non_blocking) {
struct thread_ctx ctx;
uv_pipe_t pipe_handle;
uv_thread_t thread;
size_t nwritten;
char data[4096];
uv_buf_t buf;
uv_file fd[2];
int n;
#ifdef _WIN32
uv_write_t write_req;
#endif
ASSERT_OK(uv_pipe_init(uv_default_loop(), &pipe_handle, 0));
ASSERT_OK(uv_pipe(fd, 0, 0));
ASSERT_OK(uv_pipe_open(&pipe_handle, fd[1]));
ASSERT_OK(uv_stream_set_blocking((uv_stream_t*) &pipe_handle, 1));
fd[1] = -1; /* fd[1] is owned by pipe_handle now. */
ctx.fd = fd[0];
ASSERT_OK(uv_barrier_init(&ctx.barrier, 2));
ASSERT_OK(uv_thread_create(&thread, thread_main, &ctx));
uv_barrier_wait(&ctx.barrier);
buf.len = sizeof(data);
buf.base = data;
memset(data, '.', sizeof(data));
nwritten = 0;
while (nwritten < NWRITES) {
/* The stream is in blocking mode so uv_try_write() should always succeed
* with the exact number of bytes that we wanted written.
*/
n = uv_try_write((uv_stream_t*) &pipe_handle, &buf, 1);
#ifdef _WIN32
ASSERT_EQ(n, UV_EAGAIN); /* E_NOTIMPL */
ASSERT_OK(uv_write(&write_req,
(uv_stream_t*) &pipe_handle,
&buf,
1,
write_cb));
ASSERT_NOT_NULL(write_req.handle);
ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_ONCE));
ASSERT_NULL(write_req.handle); /* check for signaled completion of write_cb */
n = buf.len;
#endif
ASSERT_EQ(n, sizeof(data));
nwritten += n;
}
uv_close((uv_handle_t*) &pipe_handle, NULL);
ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
ASSERT_OK(uv_thread_join(&thread));
#ifdef _WIN32
ASSERT_OK(_close(fd[0])); /* fd[1] is closed by uv_close(). */
#else
ASSERT_OK(close(fd[0])); /* fd[1] is closed by uv_close(). */
#endif
fd[0] = -1;
uv_barrier_destroy(&ctx.barrier);
MAKE_VALGRIND_HAPPY(uv_default_loop());
return 0;
}
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