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429 lines
10 KiB
429 lines
10 KiB
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to |
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* deal in the Software without restriction, including without limitation the |
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
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* sell copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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* IN THE SOFTWARE. |
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*/ |
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#include "uv.h" |
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#include "task.h" |
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#include <stdio.h> |
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#include <string.h> |
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/* See test-ipc.c */ |
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void spawn_helper(uv_pipe_t* channel, |
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uv_process_t* process, |
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const char* helper); |
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void ipc_send_recv_helper_threadproc(void* arg); |
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union handles { |
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uv_handle_t handle; |
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uv_stream_t stream; |
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uv_pipe_t pipe; |
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uv_tcp_t tcp; |
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uv_tty_t tty; |
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}; |
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struct test_ctx { |
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uv_pipe_t channel; |
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uv_connect_t connect_req; |
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uv_write_t write_req; |
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uv_write_t write_req2; |
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uv_handle_type expected_type; |
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union handles send; |
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union handles send2; |
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union handles recv; |
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union handles recv2; |
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}; |
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struct echo_ctx { |
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uv_pipe_t listen; |
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uv_pipe_t channel; |
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uv_write_t write_req; |
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uv_write_t write_req2; |
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uv_handle_type expected_type; |
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union handles recv; |
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union handles recv2; |
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}; |
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static struct test_ctx ctx; |
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static struct echo_ctx ctx2; |
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/* Used in write2_cb to decide if we need to cleanup or not */ |
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static int is_child_process; |
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static int is_in_process; |
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static int read_cb_count; |
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static int recv_cb_count; |
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static int write2_cb_called; |
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static void alloc_cb(uv_handle_t* handle, |
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size_t suggested_size, |
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uv_buf_t* buf) { |
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/* we're not actually reading anything so a small buffer is okay */ |
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static char slab[8]; |
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buf->base = slab; |
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buf->len = sizeof(slab); |
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} |
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static void recv_cb(uv_stream_t* handle, |
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ssize_t nread, |
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const uv_buf_t* buf) { |
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uv_handle_type pending; |
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uv_pipe_t* pipe; |
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int r; |
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union handles* recv; |
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pipe = (uv_pipe_t*) handle; |
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ASSERT(pipe == &ctx.channel); |
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do { |
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if (++recv_cb_count == 1) { |
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recv = &ctx.recv; |
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} else { |
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recv = &ctx.recv2; |
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} |
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/* Depending on the OS, the final recv_cb can be called after |
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* the child process has terminated which can result in nread |
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* being UV_EOF instead of the number of bytes read. Since |
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* the other end of the pipe has closed this UV_EOF is an |
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* acceptable value. */ |
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if (nread == UV_EOF) { |
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/* UV_EOF is only acceptable for the final recv_cb call */ |
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ASSERT(recv_cb_count == 2); |
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} else { |
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ASSERT(nread >= 0); |
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ASSERT(uv_pipe_pending_count(pipe) > 0); |
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pending = uv_pipe_pending_type(pipe); |
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ASSERT(pending == ctx.expected_type); |
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if (pending == UV_NAMED_PIPE) |
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r = uv_pipe_init(ctx.channel.loop, &recv->pipe, 0); |
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else if (pending == UV_TCP) |
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r = uv_tcp_init(ctx.channel.loop, &recv->tcp); |
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else |
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abort(); |
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ASSERT(r == 0); |
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r = uv_accept(handle, &recv->stream); |
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ASSERT(r == 0); |
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} |
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} while (uv_pipe_pending_count(pipe) > 0); |
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/* Close after two writes received */ |
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if (recv_cb_count == 2) { |
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uv_close((uv_handle_t*)&ctx.channel, NULL); |
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} |
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} |
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static void connect_cb(uv_connect_t* req, int status) { |
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int r; |
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uv_buf_t buf; |
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ASSERT(req == &ctx.connect_req); |
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ASSERT(status == 0); |
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buf = uv_buf_init(".", 1); |
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r = uv_write2(&ctx.write_req, |
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(uv_stream_t*)&ctx.channel, |
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&buf, 1, |
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&ctx.send.stream, |
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NULL); |
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ASSERT(r == 0); |
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/* Perform two writes to the same pipe to make sure that on Windows we are |
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* not running into issue 505: |
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* https://github.com/libuv/libuv/issues/505 */ |
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buf = uv_buf_init(".", 1); |
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r = uv_write2(&ctx.write_req2, |
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(uv_stream_t*)&ctx.channel, |
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&buf, 1, |
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&ctx.send2.stream, |
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NULL); |
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ASSERT(r == 0); |
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r = uv_read_start((uv_stream_t*)&ctx.channel, alloc_cb, recv_cb); |
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ASSERT(r == 0); |
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} |
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static int run_test(int inprocess) { |
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uv_process_t process; |
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uv_thread_t tid; |
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int r; |
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if (inprocess) { |
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r = uv_thread_create(&tid, ipc_send_recv_helper_threadproc, (void *) 42); |
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ASSERT(r == 0); |
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uv_sleep(1000); |
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r = uv_pipe_init(uv_default_loop(), &ctx.channel, 1); |
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ASSERT(r == 0); |
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uv_pipe_connect(&ctx.connect_req, &ctx.channel, TEST_PIPENAME_3, connect_cb); |
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} else { |
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spawn_helper(&ctx.channel, &process, "ipc_send_recv_helper"); |
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connect_cb(&ctx.connect_req, 0); |
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} |
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r = uv_run(uv_default_loop(), UV_RUN_DEFAULT); |
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ASSERT(r == 0); |
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ASSERT(recv_cb_count == 2); |
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if (inprocess) { |
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r = uv_thread_join(&tid); |
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ASSERT(r == 0); |
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} |
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return 0; |
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} |
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static int run_ipc_send_recv_pipe(int inprocess) { |
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int r; |
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ctx.expected_type = UV_NAMED_PIPE; |
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r = uv_pipe_init(uv_default_loop(), &ctx.send.pipe, 1); |
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ASSERT(r == 0); |
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r = uv_pipe_bind(&ctx.send.pipe, TEST_PIPENAME); |
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ASSERT(r == 0); |
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r = uv_pipe_init(uv_default_loop(), &ctx.send2.pipe, 1); |
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ASSERT(r == 0); |
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r = uv_pipe_bind(&ctx.send2.pipe, TEST_PIPENAME_2); |
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ASSERT(r == 0); |
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r = run_test(inprocess); |
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ASSERT(r == 0); |
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MAKE_VALGRIND_HAPPY(); |
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return 0; |
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} |
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TEST_IMPL(ipc_send_recv_pipe) { |
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#if defined(NO_SEND_HANDLE_ON_PIPE) |
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RETURN_SKIP(NO_SEND_HANDLE_ON_PIPE); |
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#endif |
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return run_ipc_send_recv_pipe(0); |
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} |
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TEST_IMPL(ipc_send_recv_pipe_inprocess) { |
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#if defined(NO_SEND_HANDLE_ON_PIPE) |
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RETURN_SKIP(NO_SEND_HANDLE_ON_PIPE); |
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#endif |
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return run_ipc_send_recv_pipe(1); |
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} |
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static int run_ipc_send_recv_tcp(int inprocess) { |
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struct sockaddr_in addr; |
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int r; |
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ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr)); |
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ctx.expected_type = UV_TCP; |
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r = uv_tcp_init(uv_default_loop(), &ctx.send.tcp); |
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ASSERT(r == 0); |
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r = uv_tcp_init(uv_default_loop(), &ctx.send2.tcp); |
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ASSERT(r == 0); |
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r = uv_tcp_bind(&ctx.send.tcp, (const struct sockaddr*) &addr, 0); |
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ASSERT(r == 0); |
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r = uv_tcp_bind(&ctx.send2.tcp, (const struct sockaddr*) &addr, 0); |
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ASSERT(r == 0); |
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r = run_test(inprocess); |
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ASSERT(r == 0); |
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MAKE_VALGRIND_HAPPY(); |
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return 0; |
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} |
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TEST_IMPL(ipc_send_recv_tcp) { |
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#if defined(NO_SEND_HANDLE_ON_PIPE) |
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RETURN_SKIP(NO_SEND_HANDLE_ON_PIPE); |
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#endif |
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return run_ipc_send_recv_tcp(0); |
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} |
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TEST_IMPL(ipc_send_recv_tcp_inprocess) { |
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#if defined(NO_SEND_HANDLE_ON_PIPE) |
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RETURN_SKIP(NO_SEND_HANDLE_ON_PIPE); |
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#endif |
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return run_ipc_send_recv_tcp(1); |
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} |
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/* Everything here runs in a child process or second thread. */ |
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static void write2_cb(uv_write_t* req, int status) { |
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ASSERT(status == 0); |
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/* After two successful writes in the child process, allow the child |
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* process to be closed. */ |
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if (++write2_cb_called == 2 && (is_child_process || is_in_process)) { |
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uv_close(&ctx2.recv.handle, NULL); |
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uv_close(&ctx2.recv2.handle, NULL); |
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uv_close((uv_handle_t*)&ctx2.channel, NULL); |
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uv_close((uv_handle_t*)&ctx2.listen, NULL); |
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} |
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} |
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static void read_cb(uv_stream_t* handle, |
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ssize_t nread, |
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const uv_buf_t* rdbuf) { |
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uv_buf_t wrbuf; |
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uv_pipe_t* pipe; |
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uv_handle_type pending; |
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int r; |
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union handles* recv; |
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uv_write_t* write_req; |
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if (nread == UV_EOF || nread == UV_ECONNABORTED) { |
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return; |
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} |
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pipe = (uv_pipe_t*) handle; |
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do { |
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if (++read_cb_count == 2) { |
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recv = &ctx2.recv; |
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write_req = &ctx2.write_req; |
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} else { |
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recv = &ctx2.recv2; |
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write_req = &ctx2.write_req2; |
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} |
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ASSERT(pipe == &ctx2.channel); |
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ASSERT(nread >= 0); |
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ASSERT(uv_pipe_pending_count(pipe) > 0); |
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pending = uv_pipe_pending_type(pipe); |
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ASSERT(pending == UV_NAMED_PIPE || pending == UV_TCP); |
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if (pending == UV_NAMED_PIPE) |
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r = uv_pipe_init(ctx2.channel.loop, &recv->pipe, 0); |
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else if (pending == UV_TCP) |
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r = uv_tcp_init(ctx2.channel.loop, &recv->tcp); |
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else |
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abort(); |
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ASSERT(r == 0); |
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r = uv_accept(handle, &recv->stream); |
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ASSERT(r == 0); |
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wrbuf = uv_buf_init(".", 1); |
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r = uv_write2(write_req, |
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(uv_stream_t*)&ctx2.channel, |
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&wrbuf, |
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1, |
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&recv->stream, |
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write2_cb); |
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ASSERT(r == 0); |
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} while (uv_pipe_pending_count(pipe) > 0); |
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} |
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static void send_recv_start(void) { |
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int r; |
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ASSERT(1 == uv_is_readable((uv_stream_t*)&ctx2.channel)); |
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ASSERT(1 == uv_is_writable((uv_stream_t*)&ctx2.channel)); |
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ASSERT(0 == uv_is_closing((uv_handle_t*)&ctx2.channel)); |
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r = uv_read_start((uv_stream_t*)&ctx2.channel, alloc_cb, read_cb); |
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ASSERT(r == 0); |
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} |
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static void listen_cb(uv_stream_t* handle, int status) { |
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int r; |
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ASSERT(handle == (uv_stream_t*)&ctx2.listen); |
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ASSERT(status == 0); |
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r = uv_accept((uv_stream_t*)&ctx2.listen, (uv_stream_t*)&ctx2.channel); |
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ASSERT(r == 0); |
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send_recv_start(); |
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} |
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int run_ipc_send_recv_helper(uv_loop_t* loop, int inprocess) { |
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int r; |
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is_in_process = inprocess; |
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memset(&ctx2, 0, sizeof(ctx2)); |
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r = uv_pipe_init(loop, &ctx2.listen, 0); |
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ASSERT(r == 0); |
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r = uv_pipe_init(loop, &ctx2.channel, 1); |
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ASSERT(r == 0); |
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if (inprocess) { |
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r = uv_pipe_bind(&ctx2.listen, TEST_PIPENAME_3); |
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ASSERT(r == 0); |
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r = uv_listen((uv_stream_t*)&ctx2.listen, SOMAXCONN, listen_cb); |
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ASSERT(r == 0); |
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} else { |
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r = uv_pipe_open(&ctx2.channel, 0); |
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ASSERT(r == 0); |
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send_recv_start(); |
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} |
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notify_parent_process(); |
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r = uv_run(loop, UV_RUN_DEFAULT); |
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ASSERT(r == 0); |
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return 0; |
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} |
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/* stdin is a duplex channel over which a handle is sent. |
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* We receive it and send it back where it came from. |
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*/ |
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int ipc_send_recv_helper(void) { |
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int r; |
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r = run_ipc_send_recv_helper(uv_default_loop(), 0); |
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ASSERT(r == 0); |
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MAKE_VALGRIND_HAPPY(); |
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return 0; |
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} |
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void ipc_send_recv_helper_threadproc(void* arg) { |
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int r; |
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uv_loop_t loop; |
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r = uv_loop_init(&loop); |
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ASSERT(r == 0); |
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r = run_ipc_send_recv_helper(&loop, 1); |
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ASSERT(r == 0); |
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r = uv_loop_close(&loop); |
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ASSERT(r == 0); |
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}
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