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159 lines
4.1 KiB
159 lines
4.1 KiB
/* Copyright libuv project 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 "task.h" |
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#include "uv.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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#define NUM_WRITES 256 |
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#define BUFFERS_PER_WRITE 3 |
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#define BUFFER_SIZE 0x2000 /* 8 kb. */ |
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#define BUFFER_CONTENT 42 |
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#define XFER_SIZE (NUM_WRITES * BUFFERS_PER_WRITE * BUFFER_SIZE) |
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struct write_info { |
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uv_write_t write_req; |
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char buffers[BUFFER_SIZE][BUFFERS_PER_WRITE]; |
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}; |
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static uv_shutdown_t shutdown_req; |
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static size_t bytes_written; |
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static size_t bytes_read; |
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static void write_cb(uv_write_t* req, int status) { |
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struct write_info* write_info = |
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container_of(req, struct write_info, write_req); |
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ASSERT(status == 0); |
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bytes_written += BUFFERS_PER_WRITE * BUFFER_SIZE; |
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free(write_info); |
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} |
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static void shutdown_cb(uv_shutdown_t* req, int status) { |
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ASSERT(status == 0 || status == UV_ENOTCONN); |
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uv_close((uv_handle_t*) req->handle, NULL); |
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} |
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static void do_write(uv_stream_t* handle) { |
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struct write_info* write_info; |
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uv_buf_t bufs[BUFFERS_PER_WRITE]; |
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size_t i; |
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int r; |
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write_info = malloc(sizeof *write_info); |
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ASSERT(write_info != NULL); |
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for (i = 0; i < BUFFERS_PER_WRITE; i++) { |
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memset(&write_info->buffers[i], BUFFER_CONTENT, BUFFER_SIZE); |
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bufs[i] = uv_buf_init(write_info->buffers[i], BUFFER_SIZE); |
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} |
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r = uv_write( |
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&write_info->write_req, handle, bufs, BUFFERS_PER_WRITE, write_cb); |
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ASSERT(r == 0); |
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} |
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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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buf->base = malloc(suggested_size); |
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buf->len = (int) suggested_size; |
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} |
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#ifndef _WIN32 |
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#include <sys/types.h> |
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#include <unistd.h> |
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#endif |
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static void read_cb(uv_stream_t* handle, ssize_t nread, const uv_buf_t* buf) { |
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ssize_t i; |
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int r; |
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ASSERT(nread >= 0); |
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bytes_read += nread; |
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for (i = 0; i < nread; i++) |
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ASSERT(buf->base[i] == BUFFER_CONTENT); |
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free(buf->base); |
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if (bytes_read >= XFER_SIZE) { |
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r = uv_read_stop(handle); |
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ASSERT(r == 0); |
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r = uv_shutdown(&shutdown_req, handle, shutdown_cb); |
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ASSERT(r == 0); |
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} |
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} |
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static void do_writes_and_reads(uv_stream_t* handle) { |
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size_t i; |
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int r; |
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bytes_written = 0; |
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bytes_read = 0; |
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for (i = 0; i < NUM_WRITES; i++) { |
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do_write(handle); |
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} |
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r = uv_read_start(handle, alloc_cb, read_cb); |
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ASSERT(r == 0); |
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r = uv_run(handle->loop, UV_RUN_DEFAULT); |
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ASSERT(r == 0); |
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ASSERT(bytes_written == XFER_SIZE); |
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ASSERT(bytes_read == XFER_SIZE); |
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} |
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TEST_IMPL(ipc_heavy_traffic_deadlock_bug) { |
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uv_pipe_t pipe; |
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uv_process_t process; |
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spawn_helper(&pipe, &process, "ipc_helper_heavy_traffic_deadlock_bug"); |
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do_writes_and_reads((uv_stream_t*) &pipe); |
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MAKE_VALGRIND_HAPPY(); |
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return 0; |
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} |
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int ipc_helper_heavy_traffic_deadlock_bug(void) { |
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uv_pipe_t pipe; |
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int r; |
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r = uv_pipe_init(uv_default_loop(), &pipe, 1); |
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ASSERT(r == 0); |
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r = uv_pipe_open(&pipe, 0); |
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ASSERT(r == 0); |
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notify_parent_process(); |
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do_writes_and_reads((uv_stream_t*) &pipe); |
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uv_sleep(100); |
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MAKE_VALGRIND_HAPPY(); |
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return 0; |
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}
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