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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 <assert.h>
#include "uv.h"
#include "internal.h"
#include "handle-inl.h"
#include "req-inl.h"
int uv_listen(uv_stream_t* stream, int backlog, uv_connection_cb cb) {
int err;
err = ERROR_INVALID_PARAMETER;
switch (stream->type) {
case UV_TCP:
err = uv_tcp_listen((uv_tcp_t*)stream, backlog, cb);
break;
case UV_NAMED_PIPE:
err = uv_pipe_listen((uv_pipe_t*)stream, backlog, cb);
break;
default:
assert(0);
}
return uv_translate_sys_error(err);
}
int uv_accept(uv_stream_t* server, uv_stream_t* client) {
int err;
err = ERROR_INVALID_PARAMETER;
switch (server->type) {
case UV_TCP:
err = uv_tcp_accept((uv_tcp_t*)server, (uv_tcp_t*)client);
break;
case UV_NAMED_PIPE:
err = uv_pipe_accept((uv_pipe_t*)server, client);
break;
default:
assert(0);
}
return uv_translate_sys_error(err);
}
int uv_read_start(uv_stream_t* handle, uv_alloc_cb alloc_cb,
uv_read_cb read_cb) {
int err;
if (handle->flags & UV_HANDLE_READING) {
return UV_EALREADY;
}
if (!(handle->flags & UV_HANDLE_READABLE)) {
return UV_ENOTCONN;
}
err = ERROR_INVALID_PARAMETER;
switch (handle->type) {
case UV_TCP:
err = uv_tcp_read_start((uv_tcp_t*)handle, alloc_cb, read_cb);
break;
case UV_NAMED_PIPE:
err = uv_pipe_read_start((uv_pipe_t*)handle, alloc_cb, read_cb);
break;
case UV_TTY:
err = uv_tty_read_start((uv_tty_t*) handle, alloc_cb, read_cb);
break;
default:
assert(0);
}
return uv_translate_sys_error(err);
}
int uv_read_stop(uv_stream_t* handle) {
int err;
if (!(handle->flags & UV_HANDLE_READING))
return 0;
err = 0;
if (handle->type == UV_TTY) {
err = uv_tty_read_stop((uv_tty_t*) handle);
} else if (handle->type == UV_NAMED_PIPE) {
uv__pipe_read_stop((uv_pipe_t*) handle);
} else {
handle->flags &= ~UV_HANDLE_READING;
DECREASE_ACTIVE_COUNT(handle->loop, handle);
}
return uv_translate_sys_error(err);
}
int uv_write(uv_write_t* req,
uv_stream_t* handle,
const uv_buf_t bufs[],
unsigned int nbufs,
uv_write_cb cb) {
uv_loop_t* loop = handle->loop;
int err;
if (!(handle->flags & UV_HANDLE_WRITABLE)) {
return UV_EPIPE;
}
err = ERROR_INVALID_PARAMETER;
switch (handle->type) {
case UV_TCP:
err = uv_tcp_write(loop, req, (uv_tcp_t*) handle, bufs, nbufs, cb);
break;
case UV_NAMED_PIPE:
err = uv__pipe_write(
loop, req, (uv_pipe_t*) handle, bufs, nbufs, NULL, cb);
break;
case UV_TTY:
err = uv_tty_write(loop, req, (uv_tty_t*) handle, bufs, nbufs, cb);
break;
default:
assert(0);
}
return uv_translate_sys_error(err);
}
int uv_write2(uv_write_t* req,
uv_stream_t* handle,
const uv_buf_t bufs[],
unsigned int nbufs,
uv_stream_t* send_handle,
uv_write_cb cb) {
uv_loop_t* loop = handle->loop;
int err;
if (send_handle == NULL) {
return uv_write(req, handle, bufs, nbufs, cb);
}
if (handle->type != UV_NAMED_PIPE || !((uv_pipe_t*) handle)->ipc) {
return UV_EINVAL;
} else if (!(handle->flags & UV_HANDLE_WRITABLE)) {
return UV_EPIPE;
}
err = uv__pipe_write(
loop, req, (uv_pipe_t*) handle, bufs, nbufs, send_handle, cb);
return uv_translate_sys_error(err);
}
int uv_try_write(uv_stream_t* stream,
const uv_buf_t bufs[],
unsigned int nbufs) {
if (stream->flags & UV_HANDLE_CLOSING)
return UV_EBADF;
if (!(stream->flags & UV_HANDLE_WRITABLE))
return UV_EPIPE;
switch (stream->type) {
case UV_TCP:
return uv__tcp_try_write((uv_tcp_t*) stream, bufs, nbufs);
case UV_TTY:
return uv__tty_try_write((uv_tty_t*) stream, bufs, nbufs);
case UV_NAMED_PIPE:
return UV_EAGAIN;
default:
assert(0);
return UV_ENOSYS;
}
}
int uv_shutdown(uv_shutdown_t* req, uv_stream_t* handle, uv_shutdown_cb cb) {
uv_loop_t* loop = handle->loop;
if (!(handle->flags & UV_HANDLE_WRITABLE) ||
handle->flags & UV_HANDLE_SHUTTING ||
uv__is_closing(handle)) {
return UV_ENOTCONN;
}
UV_REQ_INIT(req, UV_SHUTDOWN);
req->handle = handle;
req->cb = cb;
handle->flags &= ~UV_HANDLE_WRITABLE;
handle->flags |= UV_HANDLE_SHUTTING;
handle->stream.conn.shutdown_req = req;
handle->reqs_pending++;
REGISTER_HANDLE_REQ(loop, handle, req);
uv_want_endgame(loop, (uv_handle_t*)handle);
return 0;
}
int uv_is_readable(const uv_stream_t* handle) {
return !!(handle->flags & UV_HANDLE_READABLE);
}
int uv_is_writable(const uv_stream_t* handle) {
return !!(handle->flags & UV_HANDLE_WRITABLE);
}
int uv_stream_set_blocking(uv_stream_t* handle, int blocking) {
if (handle->type != UV_NAMED_PIPE)
return UV_EINVAL;
if (blocking != 0)
handle->flags |= UV_HANDLE_BLOCKING_WRITES;
else
handle->flags &= ~UV_HANDLE_BLOCKING_WRITES;
return 0;
}
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