forked from cory/tildefriends
Cory McWilliams
f421606e21
git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4308 ed5197a5-7fde-0310-b194-c3ffbd925b24
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/* Copyright (c) 2015, Ben Noordhuis <info@bnoordhuis.nl>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "uv.h"
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#include "task.h"
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#include <string.h> /* memset */
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#ifndef _WIN32
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#include <unistd.h> /* close */
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#endif
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struct thread_ctx {
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uv_barrier_t barrier;
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uv_file fd;
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};
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static void thread_main(void* arg) {
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struct thread_ctx* ctx;
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uv_fs_t req;
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uv_buf_t bufs[1];
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char buf[4096];
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ssize_t n;
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int uv_errno;
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bufs[0] = uv_buf_init(buf, sizeof(buf));
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ctx = arg;
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uv_barrier_wait(&ctx->barrier);
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uv_sleep(100); /* make sure we are forcing the writer to block a bit */
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do {
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uv_errno = uv_fs_read(NULL, &req, ctx->fd, bufs, 1, -1, NULL);
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n = req.result;
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uv_fs_req_cleanup(&req);
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} while (n > 0 || (n == -1 && uv_errno == UV_EINTR));
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ASSERT(n == 0);
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}
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#ifdef _WIN32
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static void write_cb(uv_write_t* req, int status) {
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ASSERT(status == 0);
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req->handle = NULL; /* signal completion of write_cb */
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}
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#endif
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#ifdef _WIN32
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#define NWRITES (10 << 16)
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#else
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#define NWRITES (10 << 20)
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#endif
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TEST_IMPL(pipe_set_non_blocking) {
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struct thread_ctx ctx;
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uv_pipe_t pipe_handle;
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uv_thread_t thread;
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size_t nwritten;
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char data[4096];
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uv_buf_t buf;
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uv_file fd[2];
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int n;
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#ifdef _WIN32
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uv_write_t write_req;
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#endif
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ASSERT(0 == uv_pipe_init(uv_default_loop(), &pipe_handle, 0));
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ASSERT(0 == uv_pipe(fd, 0, 0));
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ASSERT(0 == uv_pipe_open(&pipe_handle, fd[1]));
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ASSERT(0 == uv_stream_set_blocking((uv_stream_t*) &pipe_handle, 1));
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fd[1] = -1; /* fd[1] is owned by pipe_handle now. */
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ctx.fd = fd[0];
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ASSERT(0 == uv_barrier_init(&ctx.barrier, 2));
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ASSERT(0 == uv_thread_create(&thread, thread_main, &ctx));
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uv_barrier_wait(&ctx.barrier);
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buf.len = sizeof(data);
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buf.base = data;
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memset(data, '.', sizeof(data));
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nwritten = 0;
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while (nwritten < NWRITES) {
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/* The stream is in blocking mode so uv_try_write() should always succeed
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* with the exact number of bytes that we wanted written.
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*/
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n = uv_try_write((uv_stream_t*) &pipe_handle, &buf, 1);
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#ifdef _WIN32
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ASSERT(n == UV_EAGAIN); /* E_NOTIMPL */
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ASSERT(0 == uv_write(&write_req, (uv_stream_t*) &pipe_handle, &buf, 1, write_cb));
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ASSERT_NOT_NULL(write_req.handle);
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ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_ONCE));
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ASSERT_NULL(write_req.handle); /* check for signaled completion of write_cb */
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n = buf.len;
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#endif
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ASSERT(n == sizeof(data));
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nwritten += n;
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}
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uv_close((uv_handle_t*) &pipe_handle, NULL);
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ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_DEFAULT));
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ASSERT(0 == uv_thread_join(&thread));
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#ifdef _WIN32
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ASSERT(0 == _close(fd[0])); /* fd[1] is closed by uv_close(). */
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#else
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ASSERT(0 == close(fd[0])); /* fd[1] is closed by uv_close(). */
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#endif
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fd[0] = -1;
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uv_barrier_destroy(&ctx.barrier);
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MAKE_VALGRIND_HAPPY(uv_default_loop());
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return 0;
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}
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