mirror of
https://github.com/urbit/shrub.git
synced 2024-12-17 15:23:58 +03:00
256 lines
6.5 KiB
C
256 lines
6.5 KiB
C
/* 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 <stdlib.h>
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#include <string.h>
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static char exepath[1024];
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static size_t exepath_size = 1024;
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static char* args[3];
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static uv_process_options_t options;
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static int close_cb_called;
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static int exit_cb_called;
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static int on_read_cb_called;
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static int after_write_cb_called;
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static uv_pipe_t in;
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static uv_pipe_t out;
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static uv_loop_t* loop;
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#define OUTPUT_SIZE 1024
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static char output[OUTPUT_SIZE];
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static int output_used;
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static void close_cb(uv_handle_t* handle) {
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close_cb_called++;
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}
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static void exit_cb(uv_process_t* process,
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int64_t exit_status,
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int term_signal) {
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printf("exit_cb\n");
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exit_cb_called++;
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ASSERT(exit_status == 0);
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ASSERT(term_signal == 0);
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uv_close((uv_handle_t*)process, close_cb);
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uv_close((uv_handle_t*)&in, close_cb);
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uv_close((uv_handle_t*)&out, close_cb);
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}
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static void init_process_options(char* test, uv_exit_cb exit_cb) {
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int r = uv_exepath(exepath, &exepath_size);
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ASSERT(r == 0);
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exepath[exepath_size] = '\0';
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args[0] = exepath;
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args[1] = test;
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args[2] = NULL;
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options.file = exepath;
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options.args = args;
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options.exit_cb = exit_cb;
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}
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static void on_alloc(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 = output + output_used;
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buf->len = OUTPUT_SIZE - output_used;
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}
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static void after_write(uv_write_t* req, int status) {
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if (status) {
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fprintf(stderr, "uv_write error: %s\n", uv_strerror(status));
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ASSERT(0);
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}
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/* Free the read/write buffer and the request */
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free(req);
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after_write_cb_called++;
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}
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static void on_read(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* rdbuf) {
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uv_write_t* req;
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uv_buf_t wrbuf;
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int r;
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ASSERT(nread > 0 || nread == UV_EOF);
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if (nread > 0) {
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output_used += nread;
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if (output_used == 12) {
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ASSERT(memcmp("hello world\n", output, 12) == 0);
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wrbuf = uv_buf_init(output, output_used);
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req = malloc(sizeof(*req));
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r = uv_write(req, (uv_stream_t*)&in, &wrbuf, 1, after_write);
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ASSERT(r == 0);
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}
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}
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on_read_cb_called++;
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}
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TEST_IMPL(stdio_over_pipes) {
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int r;
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uv_process_t process;
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uv_stdio_container_t stdio[2];
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loop = uv_default_loop();
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init_process_options("stdio_over_pipes_helper", exit_cb);
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uv_pipe_init(loop, &out, 0);
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uv_pipe_init(loop, &in, 0);
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options.stdio = stdio;
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options.stdio[0].flags = UV_CREATE_PIPE | UV_READABLE_PIPE;
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options.stdio[0].data.stream = (uv_stream_t*)∈
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options.stdio[1].flags = UV_CREATE_PIPE | UV_WRITABLE_PIPE;
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options.stdio[1].data.stream = (uv_stream_t*)&out;
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options.stdio_count = 2;
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r = uv_spawn(loop, &process, &options);
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ASSERT(r == 0);
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r = uv_read_start((uv_stream_t*) &out, on_alloc, on_read);
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ASSERT(r == 0);
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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(on_read_cb_called > 1);
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ASSERT(after_write_cb_called == 1);
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ASSERT(exit_cb_called == 1);
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ASSERT(close_cb_called == 3);
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ASSERT(memcmp("hello world\n", output, 12) == 0);
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ASSERT(output_used == 12);
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MAKE_VALGRIND_HAPPY();
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return 0;
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}
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/* Everything here runs in a child process. */
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static int on_pipe_read_called;
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static int after_write_called;
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static uv_pipe_t stdin_pipe;
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static uv_pipe_t stdout_pipe;
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static void on_pipe_read(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* buf) {
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ASSERT(nread > 0);
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ASSERT(memcmp("hello world\n", buf->base, nread) == 0);
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on_pipe_read_called++;
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free(buf->base);
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uv_close((uv_handle_t*)&stdin_pipe, close_cb);
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uv_close((uv_handle_t*)&stdout_pipe, close_cb);
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}
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static void after_pipe_write(uv_write_t* req, int status) {
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ASSERT(status == 0);
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after_write_called++;
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}
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static void on_read_alloc(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 = suggested_size;
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}
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int stdio_over_pipes_helper(void) {
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/* Write several buffers to test that the write order is preserved. */
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char* buffers[] = {
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"he",
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"ll",
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"o ",
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"wo",
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"rl",
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"d",
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"\n"
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};
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uv_write_t write_req[ARRAY_SIZE(buffers)];
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uv_buf_t buf[ARRAY_SIZE(buffers)];
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unsigned int i;
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int r;
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uv_loop_t* loop = uv_default_loop();
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ASSERT(UV_NAMED_PIPE == uv_guess_handle(0));
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ASSERT(UV_NAMED_PIPE == uv_guess_handle(1));
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r = uv_pipe_init(loop, &stdin_pipe, 0);
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ASSERT(r == 0);
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r = uv_pipe_init(loop, &stdout_pipe, 0);
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ASSERT(r == 0);
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uv_pipe_open(&stdin_pipe, 0);
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uv_pipe_open(&stdout_pipe, 1);
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/* Unref both stdio handles to make sure that all writes complete. */
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uv_unref((uv_handle_t*)&stdin_pipe);
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uv_unref((uv_handle_t*)&stdout_pipe);
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for (i = 0; i < ARRAY_SIZE(buffers); i++) {
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buf[i] = uv_buf_init((char*)buffers[i], strlen(buffers[i]));
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}
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for (i = 0; i < ARRAY_SIZE(buffers); i++) {
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r = uv_write(&write_req[i], (uv_stream_t*)&stdout_pipe, &buf[i], 1,
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after_pipe_write);
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ASSERT(r == 0);
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}
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(after_write_called == 7);
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ASSERT(on_pipe_read_called == 0);
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ASSERT(close_cb_called == 0);
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uv_ref((uv_handle_t*)&stdout_pipe);
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uv_ref((uv_handle_t*)&stdin_pipe);
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r = uv_read_start((uv_stream_t*)&stdin_pipe, on_read_alloc, on_pipe_read);
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ASSERT(r == 0);
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(after_write_called == 7);
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ASSERT(on_pipe_read_called == 1);
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ASSERT(close_cb_called == 2);
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MAKE_VALGRIND_HAPPY();
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return 0;
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}
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