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test: test cross-process handle send/recv
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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. | ||
*/ | ||
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#include "uv.h" | ||
#include "task.h" | ||
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#include <stdio.h> | ||
#include <string.h> | ||
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/* See test-ipc.ctx */ | ||
void spawn_helper(uv_pipe_t* channel, | ||
uv_process_t* process, | ||
const char* helper); | ||
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union handles { | ||
uv_handle_t handle; | ||
uv_stream_t stream; | ||
uv_pipe_t pipe; | ||
uv_tcp_t tcp; | ||
uv_tty_t tty; | ||
}; | ||
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struct echo_ctx { | ||
uv_pipe_t channel; | ||
uv_write_t write_req; | ||
uv_handle_type expected_type; | ||
union handles send; | ||
union handles recv; | ||
}; | ||
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static struct echo_ctx ctx; | ||
static int num_recv_handles; | ||
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static uv_buf_t alloc_cb(uv_handle_t* handle, size_t suggested_size) { | ||
/* we're not actually reading anything so a small buffer is okay */ | ||
static char buf[8]; | ||
return uv_buf_init(buf, sizeof(buf)); | ||
} | ||
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static void recv_cb(uv_pipe_t* handle, | ||
ssize_t nread, | ||
uv_buf_t buf, | ||
uv_handle_type pending) { | ||
int r; | ||
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ASSERT(pending == ctx.expected_type); | ||
ASSERT(handle == &ctx.channel); | ||
ASSERT(nread >= 0); | ||
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if (pending == UV_NAMED_PIPE) | ||
r = uv_pipe_init(ctx.channel.loop, &ctx.recv.pipe, 0); | ||
else if (pending == UV_TCP) | ||
r = uv_tcp_init(ctx.channel.loop, &ctx.recv.tcp); | ||
else | ||
abort(); | ||
ASSERT(r == 0); | ||
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r = uv_accept((uv_stream_t*)&ctx.channel, &ctx.recv.stream); | ||
ASSERT(r == 0); | ||
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uv_close((uv_handle_t*)&ctx.channel, NULL); | ||
uv_close(&ctx.send.handle, NULL); | ||
uv_close(&ctx.recv.handle, NULL); | ||
num_recv_handles++; | ||
} | ||
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static int run_test(void) { | ||
uv_process_t process; | ||
uv_buf_t buf; | ||
int r; | ||
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spawn_helper(&ctx.channel, &process, "ipc_send_recv_helper"); | ||
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buf = uv_buf_init(".", 1); | ||
r = uv_write2(&ctx.write_req, | ||
(uv_stream_t*)&ctx.channel, | ||
&buf, 1, | ||
&ctx.send.stream, | ||
NULL); | ||
ASSERT(r == 0); | ||
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r = uv_read2_start((uv_stream_t*)&ctx.channel, alloc_cb, recv_cb); | ||
ASSERT(r == 0); | ||
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r = uv_run(uv_default_loop()); | ||
ASSERT(r == 0); | ||
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ASSERT(num_recv_handles == 1); | ||
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return 0; | ||
} | ||
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TEST_IMPL(ipc_send_recv_pipe) { | ||
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); | ||
ASSERT(r == 0); | ||
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r = uv_pipe_bind(&ctx.send.pipe, TEST_PIPENAME); | ||
ASSERT(r == 0); | ||
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return run_test(); | ||
} | ||
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TEST_IMPL(ipc_send_recv_tcp) { | ||
int r; | ||
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ctx.expected_type = UV_TCP; | ||
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r = uv_tcp_init(uv_default_loop(), &ctx.send.tcp); | ||
ASSERT(r == 0); | ||
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r = uv_tcp_bind(&ctx.send.tcp, uv_ip4_addr("127.0.0.1", TEST_PORT)); | ||
ASSERT(r == 0); | ||
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return run_test(); | ||
} | ||
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/* Everything here runs in a child process. */ | ||
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static void write2_cb(uv_write_t* req, int status) { | ||
ASSERT(status == 0); | ||
uv_close(&ctx.recv.handle, NULL); | ||
uv_close((uv_handle_t*)&ctx.channel, NULL); | ||
} | ||
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static void read2_cb(uv_pipe_t* handle, | ||
ssize_t nread, | ||
uv_buf_t buf, | ||
uv_handle_type pending) { | ||
int r; | ||
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ASSERT(pending == UV_NAMED_PIPE || pending == UV_TCP); | ||
ASSERT(handle == &ctx.channel); | ||
ASSERT(nread >= 0); | ||
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buf = uv_buf_init(".", 1); | ||
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if (pending == UV_NAMED_PIPE) | ||
r = uv_pipe_init(ctx.channel.loop, &ctx.recv.pipe, 0); | ||
else if (pending == UV_TCP) | ||
r = uv_tcp_init(ctx.channel.loop, &ctx.recv.tcp); | ||
else | ||
abort(); | ||
ASSERT(r == 0); | ||
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r = uv_accept((uv_stream_t*)handle, &ctx.recv.stream); | ||
ASSERT(r == 0); | ||
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r = uv_write2(&ctx.write_req, | ||
(uv_stream_t*)&ctx.channel, | ||
&buf, 1, | ||
&ctx.recv.stream, | ||
write2_cb); | ||
ASSERT(r == 0); | ||
} | ||
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/* stdin is a duplex channel over which a handle is sent. | ||
* We receive it and send it back where it came from. | ||
*/ | ||
int ipc_send_recv_helper(void) { | ||
int r; | ||
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memset(&ctx, 0, sizeof(ctx)); | ||
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r = uv_pipe_init(uv_default_loop(), &ctx.channel, 1); | ||
ASSERT(r == 0); | ||
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uv_pipe_open(&ctx.channel, 0); | ||
ASSERT(uv_is_readable((uv_stream_t*)&ctx.channel)); | ||
ASSERT(uv_is_writable((uv_stream_t*)&ctx.channel)); | ||
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r = uv_read2_start((uv_stream_t*)&ctx.channel, alloc_cb, read2_cb); | ||
ASSERT(r == 0); | ||
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r = uv_run(uv_default_loop()); | ||
ASSERT(r == 0); | ||
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return 0; | ||
} |
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