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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "uv.h"
#include "task.h"
#include <stdlib.h>
#include <string.h>
static char exepath[1024];
static size_t exepath_size = 1024;
static char* args[3];
static uv_process_options_t options;
static int close_cb_called;
static int exit_cb_called;
static int on_read_cb_called;
static int after_write_cb_called;
uv_pipe_t out, in;
static uv_loop_t* loop;
#define OUTPUT_SIZE 1024
static char output[OUTPUT_SIZE];
static int output_used;
static void close_cb(uv_handle_t* handle) {
printf("close_cb\n");
close_cb_called++;
}
static void exit_cb(uv_process_t* process, int exit_status, int term_signal) {
printf("exit_cb\n");
exit_cb_called++;
ASSERT(exit_status == 0);
ASSERT(term_signal == 0);
uv_close((uv_handle_t*)process, close_cb);
uv_close((uv_handle_t*)&in, close_cb);
uv_close((uv_handle_t*)&out, close_cb);
}
static void init_process_options(char* test, uv_exit_cb exit_cb) {
int r = uv_exepath(exepath, &exepath_size);
ASSERT(r == 0);
exepath[exepath_size] = '\0';
args[0] = exepath;
args[1] = test;
args[2] = NULL;
options.file = exepath;
options.args = args;
options.exit_cb = exit_cb;
}
static uv_buf_t on_alloc(uv_handle_t* handle, size_t suggested_size) {
return uv_buf_init(output + output_used, OUTPUT_SIZE - output_used);
}
static void after_write(uv_write_t* req, int status) {
if (status) {
uv_err_t err = uv_last_error(loop);
fprintf(stderr, "uv_write error: %s\n", uv_strerror(err));
ASSERT(0);
}
/* Free the read/write buffer and the request */
free(req);
after_write_cb_called++;
}
static void on_read(uv_stream_t* tcp, ssize_t nread, uv_buf_t rdbuf) {
uv_write_t* req;
uv_buf_t wrbuf;
int r;
ASSERT(nread > 0 || uv_last_error(uv_default_loop()).code == UV_EOF);
if (nread > 0) {
output_used += nread;
if (output_used == 12) {
ASSERT(memcmp("hello world\n", output, 12) == 0);
wrbuf = uv_buf_init(output, output_used);
req = malloc(sizeof(*req));
r = uv_write(req, (uv_stream_t*)&in, &wrbuf, 1, after_write);
ASSERT(r == 0);
}
}
on_read_cb_called++;
}
TEST_IMPL(stdio_over_pipes) {
int r;
uv_process_t process;
uv_stdio_container_t stdio[2];
loop = uv_default_loop();
init_process_options("stdio_over_pipes_helper", exit_cb);
uv_pipe_init(loop, &out, 0);
uv_pipe_init(loop, &in, 0);
options.stdio = stdio;
options.stdio[0].flags = UV_CREATE_PIPE | UV_READABLE_PIPE;
options.stdio[0].data.stream = (uv_stream_t*)&in;
options.stdio[1].flags = UV_CREATE_PIPE | UV_WRITABLE_PIPE;
options.stdio[1].data.stream = (uv_stream_t*)&out;
options.stdio_count = 2;
r = uv_spawn(loop, &process, options);
ASSERT(r == 0);
r = uv_read_start((uv_stream_t*) &out, on_alloc, on_read);
ASSERT(r == 0);
r = uv_run(uv_default_loop());
ASSERT(r == 0);
ASSERT(on_read_cb_called > 1);
ASSERT(after_write_cb_called == 1);
ASSERT(exit_cb_called == 1);
ASSERT(close_cb_called == 3);
ASSERT(memcmp("hello world\n", output, 12) == 0);
ASSERT(output_used == 12);
return 0;
}
/* Everything here runs in a child process. */
static int on_pipe_read_called;
static int after_write_called;
static uv_pipe_t stdin_pipe;
static uv_pipe_t stdout_pipe;
static void on_pipe_read(uv_stream_t* tcp, ssize_t nread, uv_buf_t buf) {
ASSERT(nread > 0);
ASSERT(memcmp("hello world\n", buf.base, nread) == 0);
on_pipe_read_called++;
free(buf.base);
uv_close((uv_handle_t*)&stdin_pipe, close_cb);
uv_close((uv_handle_t*)&stdout_pipe, close_cb);
}
static void after_pipe_write(uv_write_t* req, int status) {
ASSERT(status == 0);
after_write_called++;
}
static uv_buf_t on_read_alloc(uv_handle_t* handle, size_t suggested_size) {
return uv_buf_init(malloc(suggested_size), suggested_size);
}
int stdio_over_pipes_helper() {
/* Write several buffers to test that the write order is preserved. */
char* buffers[] = {
"he",
"ll",
"o ",
"wo",
"rl",
"d",
"\n"
};
uv_write_t write_req[ARRAY_SIZE(buffers)];
uv_buf_t buf[ARRAY_SIZE(buffers)];
int r, i;
uv_loop_t* loop = uv_default_loop();
ASSERT(UV_NAMED_PIPE == uv_guess_handle(0));
ASSERT(UV_NAMED_PIPE == uv_guess_handle(1));
r = uv_pipe_init(loop, &stdin_pipe, 0);
ASSERT(r == 0);
r = uv_pipe_init(loop, &stdout_pipe, 0);
ASSERT(r == 0);
uv_pipe_open(&stdin_pipe, 0);
uv_pipe_open(&stdout_pipe, 1);
/* Unref both stdio handles to make sure that all writes complete. */
uv_unref((uv_handle_t*)&stdin_pipe);
uv_unref((uv_handle_t*)&stdout_pipe);
for (i = 0; i < ARRAY_SIZE(buffers); i++) {
buf[i] = uv_buf_init((char*)buffers[i], strlen(buffers[i]));
}
for (i = 0; i < ARRAY_SIZE(buffers); i++) {
r = uv_write(&write_req[i], (uv_stream_t*)&stdout_pipe, &buf[i], 1,
after_pipe_write);
ASSERT(r == 0);
}
uv_run(loop);
ASSERT(after_write_called == 7);
ASSERT(on_pipe_read_called == 0);
ASSERT(close_cb_called == 0);
uv_ref((uv_handle_t*)&stdout_pipe);
uv_ref((uv_handle_t*)&stdin_pipe);
r = uv_read_start((uv_stream_t*)&stdin_pipe, on_read_alloc,
on_pipe_read);
ASSERT(r == 0);
uv_run(loop);
ASSERT(after_write_called == 7);
ASSERT(on_pipe_read_called == 1);
ASSERT(close_cb_called == 2);
return 0;
}
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