1328 lines
37 KiB
C
1328 lines
37 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 <assert.h>
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#include "uv.h"
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#include "internal.h"
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#include "handle-inl.h"
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#include "req-inl.h"
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/*
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* Threshold of active tcp streams for which to preallocate tcp read buffers.
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* (Due to node slab allocator performing poorly under this pattern,
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* the optimization is temporarily disabled (threshold=0). This will be
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* revisited once node allocator is improved.)
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*/
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const unsigned int uv_active_tcp_streams_threshold = 0;
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/*
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* Number of simultaneous pending AcceptEx calls.
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*/
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const unsigned int uv_simultaneous_server_accepts = 32;
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/* A zero-size buffer for use by uv_tcp_read */
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static char uv_zero_[] = "";
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static int uv__tcp_nodelay(uv_tcp_t* handle, SOCKET socket, int enable) {
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if (setsockopt(socket,
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IPPROTO_TCP,
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TCP_NODELAY,
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(const char*)&enable,
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sizeof enable) == -1) {
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uv__set_sys_error(handle->loop, errno);
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return -1;
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}
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return 0;
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}
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static int uv__tcp_keepalive(uv_tcp_t* handle, SOCKET socket, int enable, unsigned int delay) {
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if (setsockopt(socket,
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SOL_SOCKET,
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SO_KEEPALIVE,
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(const char*)&enable,
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sizeof enable) == -1) {
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uv__set_sys_error(handle->loop, errno);
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return -1;
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}
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if (enable && setsockopt(socket,
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IPPROTO_TCP,
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TCP_KEEPALIVE,
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(const char*)&delay,
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sizeof delay) == -1) {
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uv__set_sys_error(handle->loop, errno);
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return -1;
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}
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return 0;
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}
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static int uv_tcp_set_socket(uv_loop_t* loop, uv_tcp_t* handle,
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SOCKET socket, int imported) {
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DWORD yes = 1;
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int non_ifs_lsp;
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assert(handle->socket == INVALID_SOCKET);
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/* Set the socket to nonblocking mode */
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if (ioctlsocket(socket, FIONBIO, &yes) == SOCKET_ERROR) {
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uv__set_sys_error(loop, WSAGetLastError());
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return -1;
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}
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/* Make the socket non-inheritable */
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if (!SetHandleInformation((HANDLE)socket, HANDLE_FLAG_INHERIT, 0)) {
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uv__set_sys_error(loop, GetLastError());
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return -1;
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}
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/* Associate it with the I/O completion port. */
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/* Use uv_handle_t pointer as completion key. */
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if (CreateIoCompletionPort((HANDLE)socket,
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loop->iocp,
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(ULONG_PTR)socket,
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0) == NULL) {
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if (imported) {
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handle->flags |= UV_HANDLE_EMULATE_IOCP;
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} else {
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uv__set_sys_error(loop, GetLastError());
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return -1;
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}
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}
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non_ifs_lsp = (handle->flags & UV_HANDLE_IPV6) ? uv_tcp_non_ifs_lsp_ipv6 :
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uv_tcp_non_ifs_lsp_ipv4;
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if (pSetFileCompletionNotificationModes && !non_ifs_lsp) {
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if (pSetFileCompletionNotificationModes((HANDLE) socket,
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FILE_SKIP_SET_EVENT_ON_HANDLE |
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FILE_SKIP_COMPLETION_PORT_ON_SUCCESS)) {
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handle->flags |= UV_HANDLE_SYNC_BYPASS_IOCP;
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} else if (GetLastError() != ERROR_INVALID_FUNCTION) {
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uv__set_sys_error(loop, GetLastError());
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return -1;
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}
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}
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if ((handle->flags & UV_HANDLE_TCP_NODELAY) &&
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uv__tcp_nodelay(handle, socket, 1)) {
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return -1;
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}
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/* TODO: Use stored delay. */
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if ((handle->flags & UV_HANDLE_TCP_KEEPALIVE) &&
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uv__tcp_keepalive(handle, socket, 1, 60)) {
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return -1;
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}
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handle->socket = socket;
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return 0;
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}
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int uv_tcp_init(uv_loop_t* loop, uv_tcp_t* handle) {
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uv_stream_init(loop, (uv_stream_t*) handle);
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handle->type = UV_TCP;
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handle->accept_reqs = NULL;
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handle->pending_accepts = NULL;
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handle->socket = INVALID_SOCKET;
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handle->reqs_pending = 0;
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handle->func_acceptex = NULL;
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handle->func_connectex = NULL;
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handle->processed_accepts = 0;
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loop->counters.tcp_init++;
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return 0;
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}
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void uv_tcp_endgame(uv_loop_t* loop, uv_tcp_t* handle) {
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int status;
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int sys_error;
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unsigned int i;
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uv_tcp_accept_t* req;
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if (handle->flags & UV_HANDLE_CONNECTION &&
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handle->shutdown_req != NULL &&
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handle->write_reqs_pending == 0) {
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UNREGISTER_HANDLE_REQ(loop, handle, handle->shutdown_req);
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if (handle->flags & UV_HANDLE_CLOSING) {
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status = -1;
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sys_error = WSAEINTR;
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} else if (shutdown(handle->socket, SD_SEND) != SOCKET_ERROR) {
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status = 0;
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handle->flags |= UV_HANDLE_SHUT;
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} else {
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status = -1;
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sys_error = WSAGetLastError();
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}
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if (handle->shutdown_req->cb) {
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if (status == -1) {
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uv__set_sys_error(loop, sys_error);
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}
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handle->shutdown_req->cb(handle->shutdown_req, status);
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}
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handle->shutdown_req = NULL;
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DECREASE_PENDING_REQ_COUNT(handle);
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return;
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}
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if (handle->flags & UV_HANDLE_CLOSING &&
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handle->reqs_pending == 0) {
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assert(!(handle->flags & UV_HANDLE_CLOSED));
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uv__handle_stop(handle);
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if (!(handle->flags & UV_HANDLE_TCP_SOCKET_CLOSED)) {
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closesocket(handle->socket);
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handle->flags |= UV_HANDLE_TCP_SOCKET_CLOSED;
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}
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if (!(handle->flags & UV_HANDLE_CONNECTION) && handle->accept_reqs) {
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if (handle->flags & UV_HANDLE_EMULATE_IOCP) {
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for (i = 0; i < uv_simultaneous_server_accepts; i++) {
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req = &handle->accept_reqs[i];
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if (req->wait_handle != INVALID_HANDLE_VALUE) {
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UnregisterWait(req->wait_handle);
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req->wait_handle = INVALID_HANDLE_VALUE;
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}
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if (req->event_handle) {
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CloseHandle(req->event_handle);
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req->event_handle = NULL;
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}
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}
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}
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free(handle->accept_reqs);
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handle->accept_reqs = NULL;
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}
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if (handle->flags & UV_HANDLE_CONNECTION &&
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handle->flags & UV_HANDLE_EMULATE_IOCP) {
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if (handle->read_req.wait_handle != INVALID_HANDLE_VALUE) {
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UnregisterWait(handle->read_req.wait_handle);
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handle->read_req.wait_handle = INVALID_HANDLE_VALUE;
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}
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if (handle->read_req.event_handle) {
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CloseHandle(handle->read_req.event_handle);
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handle->read_req.event_handle = NULL;
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}
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}
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uv__handle_close(handle);
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loop->active_tcp_streams--;
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}
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}
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static int uv__bind(uv_tcp_t* handle,
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int domain,
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struct sockaddr* addr,
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int addrsize) {
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DWORD err;
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int r;
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if (handle->socket == INVALID_SOCKET) {
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SOCKET sock = socket(domain, SOCK_STREAM, 0);
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if (sock == INVALID_SOCKET) {
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uv__set_sys_error(handle->loop, WSAGetLastError());
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return -1;
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}
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if (uv_tcp_set_socket(handle->loop, handle, sock, 0) == -1) {
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closesocket(sock);
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return -1;
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}
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}
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r = bind(handle->socket, addr, addrsize);
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if (r == SOCKET_ERROR) {
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err = WSAGetLastError();
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if (err == WSAEADDRINUSE) {
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/* Some errors are not to be reported until connect() or listen() */
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handle->bind_error = err;
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handle->flags |= UV_HANDLE_BIND_ERROR;
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} else {
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uv__set_sys_error(handle->loop, err);
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return -1;
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}
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}
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handle->flags |= UV_HANDLE_BOUND;
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return 0;
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}
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int uv__tcp_bind(uv_tcp_t* handle, struct sockaddr_in addr) {
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return uv__bind(handle,
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AF_INET,
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(struct sockaddr*)&addr,
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sizeof(struct sockaddr_in));
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}
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int uv__tcp_bind6(uv_tcp_t* handle, struct sockaddr_in6 addr) {
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if (uv_allow_ipv6) {
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handle->flags |= UV_HANDLE_IPV6;
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return uv__bind(handle,
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AF_INET6,
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(struct sockaddr*)&addr,
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sizeof(struct sockaddr_in6));
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} else {
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uv__set_sys_error(handle->loop, WSAEAFNOSUPPORT);
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return -1;
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}
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}
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static void CALLBACK post_completion(void* context, BOOLEAN timed_out) {
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uv_req_t* req;
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uv_tcp_t* handle;
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req = (uv_req_t*) context;
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assert(req != NULL);
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handle = (uv_tcp_t*)req->data;
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assert(handle != NULL);
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assert(!timed_out);
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if (!PostQueuedCompletionStatus(handle->loop->iocp,
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req->overlapped.InternalHigh,
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0,
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&req->overlapped)) {
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uv_fatal_error(GetLastError(), "PostQueuedCompletionStatus");
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}
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}
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static void CALLBACK post_write_completion(void* context, BOOLEAN timed_out) {
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uv_write_t* req;
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uv_tcp_t* handle;
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req = (uv_write_t*) context;
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assert(req != NULL);
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handle = (uv_tcp_t*)req->handle;
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assert(handle != NULL);
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assert(!timed_out);
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if (!PostQueuedCompletionStatus(handle->loop->iocp,
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req->overlapped.InternalHigh,
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0,
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&req->overlapped)) {
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uv_fatal_error(GetLastError(), "PostQueuedCompletionStatus");
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}
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}
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static void uv_tcp_queue_accept(uv_tcp_t* handle, uv_tcp_accept_t* req) {
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uv_loop_t* loop = handle->loop;
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BOOL success;
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DWORD bytes;
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SOCKET accept_socket;
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short family;
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assert(handle->flags & UV_HANDLE_LISTENING);
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assert(req->accept_socket == INVALID_SOCKET);
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/* choose family and extension function */
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if (handle->flags & UV_HANDLE_IPV6) {
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family = AF_INET6;
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} else {
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family = AF_INET;
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}
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/* Open a socket for the accepted connection. */
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accept_socket = socket(family, SOCK_STREAM, 0);
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if (accept_socket == INVALID_SOCKET) {
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SET_REQ_ERROR(req, WSAGetLastError());
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uv_insert_pending_req(loop, (uv_req_t*)req);
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handle->reqs_pending++;
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return;
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}
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/* Prepare the overlapped structure. */
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memset(&(req->overlapped), 0, sizeof(req->overlapped));
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if (handle->flags & UV_HANDLE_EMULATE_IOCP) {
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req->overlapped.hEvent = (HANDLE) ((ULONG_PTR) req->event_handle | 1);
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}
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success = handle->func_acceptex(handle->socket,
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accept_socket,
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(void*)req->accept_buffer,
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0,
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sizeof(struct sockaddr_storage),
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sizeof(struct sockaddr_storage),
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&bytes,
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&req->overlapped);
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if (UV_SUCCEEDED_WITHOUT_IOCP(success)) {
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/* Process the req without IOCP. */
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req->accept_socket = accept_socket;
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handle->reqs_pending++;
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uv_insert_pending_req(loop, (uv_req_t*)req);
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} else if (UV_SUCCEEDED_WITH_IOCP(success)) {
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/* The req will be processed with IOCP. */
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req->accept_socket = accept_socket;
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handle->reqs_pending++;
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if (handle->flags & UV_HANDLE_EMULATE_IOCP &&
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req->wait_handle == INVALID_HANDLE_VALUE &&
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!RegisterWaitForSingleObject(&req->wait_handle,
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req->event_handle, post_completion, (void*) req,
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INFINITE, WT_EXECUTEINWAITTHREAD)) {
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SET_REQ_ERROR(req, GetLastError());
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uv_insert_pending_req(loop, (uv_req_t*)req);
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handle->reqs_pending++;
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return;
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}
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} else {
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/* Make this req pending reporting an error. */
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SET_REQ_ERROR(req, WSAGetLastError());
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uv_insert_pending_req(loop, (uv_req_t*)req);
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handle->reqs_pending++;
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/* Destroy the preallocated client socket. */
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closesocket(accept_socket);
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/* Destroy the event handle */
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if (handle->flags & UV_HANDLE_EMULATE_IOCP) {
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CloseHandle(req->overlapped.hEvent);
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req->event_handle = NULL;
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}
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}
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}
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static void uv_tcp_queue_read(uv_loop_t* loop, uv_tcp_t* handle) {
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uv_read_t* req;
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uv_buf_t buf;
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int result;
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DWORD bytes, flags;
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assert(handle->flags & UV_HANDLE_READING);
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assert(!(handle->flags & UV_HANDLE_READ_PENDING));
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req = &handle->read_req;
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memset(&req->overlapped, 0, sizeof(req->overlapped));
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/*
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* Preallocate a read buffer if the number of active streams is below
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* the threshold.
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*/
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if (loop->active_tcp_streams < uv_active_tcp_streams_threshold) {
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handle->flags &= ~UV_HANDLE_ZERO_READ;
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handle->read_buffer = handle->alloc_cb((uv_handle_t*) handle, 65536);
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assert(handle->read_buffer.len > 0);
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buf = handle->read_buffer;
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} else {
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handle->flags |= UV_HANDLE_ZERO_READ;
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buf.base = (char*) &uv_zero_;
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buf.len = 0;
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}
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/* Prepare the overlapped structure. */
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memset(&(req->overlapped), 0, sizeof(req->overlapped));
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if (handle->flags & UV_HANDLE_EMULATE_IOCP) {
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assert(req->event_handle);
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req->overlapped.hEvent = (HANDLE) ((ULONG_PTR) req->event_handle | 1);
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}
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flags = 0;
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result = WSARecv(handle->socket,
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(WSABUF*)&buf,
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1,
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&bytes,
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&flags,
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&req->overlapped,
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NULL);
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if (UV_SUCCEEDED_WITHOUT_IOCP(result == 0)) {
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/* Process the req without IOCP. */
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handle->flags |= UV_HANDLE_READ_PENDING;
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req->overlapped.InternalHigh = bytes;
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handle->reqs_pending++;
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uv_insert_pending_req(loop, (uv_req_t*)req);
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} else if (UV_SUCCEEDED_WITH_IOCP(result == 0)) {
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/* The req will be processed with IOCP. */
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handle->flags |= UV_HANDLE_READ_PENDING;
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handle->reqs_pending++;
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if (handle->flags & UV_HANDLE_EMULATE_IOCP &&
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req->wait_handle == INVALID_HANDLE_VALUE &&
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!RegisterWaitForSingleObject(&req->wait_handle,
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req->event_handle, post_completion, (void*) req,
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INFINITE, WT_EXECUTEINWAITTHREAD)) {
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SET_REQ_ERROR(req, GetLastError());
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uv_insert_pending_req(loop, (uv_req_t*)req);
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}
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} else {
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/* Make this req pending reporting an error. */
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SET_REQ_ERROR(req, WSAGetLastError());
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uv_insert_pending_req(loop, (uv_req_t*)req);
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handle->reqs_pending++;
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}
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}
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int uv_tcp_listen(uv_tcp_t* handle, int backlog, uv_connection_cb cb) {
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uv_loop_t* loop = handle->loop;
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unsigned int i, simultaneous_accepts;
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uv_tcp_accept_t* req;
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assert(backlog > 0);
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if (handle->flags & UV_HANDLE_LISTENING) {
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handle->connection_cb = cb;
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}
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if (handle->flags & UV_HANDLE_READING) {
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uv__set_artificial_error(loop, UV_EISCONN);
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return -1;
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}
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|
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if (handle->flags & UV_HANDLE_BIND_ERROR) {
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uv__set_sys_error(loop, handle->bind_error);
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return -1;
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}
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|
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if (!(handle->flags & UV_HANDLE_BOUND) &&
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uv_tcp_bind(handle, uv_addr_ip4_any_) < 0)
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return -1;
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|
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if (!handle->func_acceptex) {
|
|
if(!uv_get_acceptex_function(handle->socket, &handle->func_acceptex)) {
|
|
uv__set_sys_error(loop, WSAEAFNOSUPPORT);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (!(handle->flags & UV_HANDLE_SHARED_TCP_SOCKET) &&
|
|
listen(handle->socket, backlog) == SOCKET_ERROR) {
|
|
uv__set_sys_error(loop, WSAGetLastError());
|
|
return -1;
|
|
}
|
|
|
|
handle->flags |= UV_HANDLE_LISTENING;
|
|
handle->connection_cb = cb;
|
|
INCREASE_ACTIVE_COUNT(loop, handle);
|
|
|
|
simultaneous_accepts = handle->flags & UV_HANDLE_TCP_SINGLE_ACCEPT ? 1
|
|
: uv_simultaneous_server_accepts;
|
|
|
|
if(!handle->accept_reqs) {
|
|
handle->accept_reqs = (uv_tcp_accept_t*)
|
|
malloc(simultaneous_accepts * sizeof(uv_tcp_accept_t));
|
|
if (!handle->accept_reqs) {
|
|
uv_fatal_error(ERROR_OUTOFMEMORY, "malloc");
|
|
}
|
|
|
|
for (i = 0; i < simultaneous_accepts; i++) {
|
|
req = &handle->accept_reqs[i];
|
|
uv_req_init(loop, (uv_req_t*)req);
|
|
req->type = UV_ACCEPT;
|
|
req->accept_socket = INVALID_SOCKET;
|
|
req->data = handle;
|
|
|
|
req->wait_handle = INVALID_HANDLE_VALUE;
|
|
if (handle->flags & UV_HANDLE_EMULATE_IOCP) {
|
|
req->event_handle = CreateEvent(NULL, 0, 0, NULL);
|
|
if (!req->event_handle) {
|
|
uv_fatal_error(GetLastError(), "CreateEvent");
|
|
}
|
|
} else {
|
|
req->event_handle = NULL;
|
|
}
|
|
|
|
uv_tcp_queue_accept(handle, req);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv_tcp_accept(uv_tcp_t* server, uv_tcp_t* client) {
|
|
uv_loop_t* loop = server->loop;
|
|
int rv = 0;
|
|
|
|
uv_tcp_accept_t* req = server->pending_accepts;
|
|
|
|
if (!req) {
|
|
/* No valid connections found, so we error out. */
|
|
uv__set_sys_error(loop, WSAEWOULDBLOCK);
|
|
return -1;
|
|
}
|
|
|
|
if (req->accept_socket == INVALID_SOCKET) {
|
|
uv__set_sys_error(loop, WSAENOTCONN);
|
|
return -1;
|
|
}
|
|
|
|
if (uv_tcp_set_socket(client->loop, client, req->accept_socket, 0) == -1) {
|
|
closesocket(req->accept_socket);
|
|
rv = -1;
|
|
} else {
|
|
uv_connection_init((uv_stream_t*) client);
|
|
/* AcceptEx() implicitly binds the accepted socket. */
|
|
client->flags |= UV_HANDLE_BOUND;
|
|
}
|
|
|
|
/* Prepare the req to pick up a new connection */
|
|
server->pending_accepts = req->next_pending;
|
|
req->next_pending = NULL;
|
|
req->accept_socket = INVALID_SOCKET;
|
|
|
|
if (!(server->flags & UV_HANDLE_CLOSING)) {
|
|
/* Check if we're in a middle of changing the number of pending accepts. */
|
|
if (!(server->flags & UV_HANDLE_TCP_ACCEPT_STATE_CHANGING)) {
|
|
uv_tcp_queue_accept(server, req);
|
|
} else {
|
|
/* We better be switching to a single pending accept. */
|
|
assert(server->flags & UV_HANDLE_TCP_SINGLE_ACCEPT);
|
|
|
|
server->processed_accepts++;
|
|
|
|
if (server->processed_accepts >= uv_simultaneous_server_accepts) {
|
|
server->processed_accepts = 0;
|
|
/*
|
|
* All previously queued accept requests are now processed.
|
|
* We now switch to queueing just a single accept.
|
|
*/
|
|
uv_tcp_queue_accept(server, &server->accept_reqs[0]);
|
|
server->flags &= ~UV_HANDLE_TCP_ACCEPT_STATE_CHANGING;
|
|
server->flags |= UV_HANDLE_TCP_SINGLE_ACCEPT;
|
|
}
|
|
}
|
|
}
|
|
|
|
loop->active_tcp_streams++;
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
int uv_tcp_read_start(uv_tcp_t* handle, uv_alloc_cb alloc_cb,
|
|
uv_read_cb read_cb) {
|
|
uv_loop_t* loop = handle->loop;
|
|
|
|
if (!(handle->flags & UV_HANDLE_CONNECTION)) {
|
|
uv__set_sys_error(loop, WSAEINVAL);
|
|
return -1;
|
|
}
|
|
|
|
if (handle->flags & UV_HANDLE_READING) {
|
|
uv__set_sys_error(loop, WSAEALREADY);
|
|
return -1;
|
|
}
|
|
|
|
if (handle->flags & UV_HANDLE_EOF) {
|
|
uv__set_sys_error(loop, WSAESHUTDOWN);
|
|
return -1;
|
|
}
|
|
|
|
handle->flags |= UV_HANDLE_READING;
|
|
handle->read_cb = read_cb;
|
|
handle->alloc_cb = alloc_cb;
|
|
INCREASE_ACTIVE_COUNT(loop, handle);
|
|
|
|
/* If reading was stopped and then started again, there could still be a */
|
|
/* read request pending. */
|
|
if (!(handle->flags & UV_HANDLE_READ_PENDING)) {
|
|
if (handle->flags & UV_HANDLE_EMULATE_IOCP &&
|
|
!handle->read_req.event_handle) {
|
|
handle->read_req.event_handle = CreateEvent(NULL, 0, 0, NULL);
|
|
if (!handle->read_req.event_handle) {
|
|
uv_fatal_error(GetLastError(), "CreateEvent");
|
|
}
|
|
}
|
|
uv_tcp_queue_read(loop, handle);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv__tcp_connect(uv_connect_t* req,
|
|
uv_tcp_t* handle,
|
|
struct sockaddr_in address,
|
|
uv_connect_cb cb) {
|
|
uv_loop_t* loop = handle->loop;
|
|
int addrsize = sizeof(struct sockaddr_in);
|
|
BOOL success;
|
|
DWORD bytes;
|
|
|
|
if (handle->flags & UV_HANDLE_BIND_ERROR) {
|
|
uv__set_sys_error(loop, handle->bind_error);
|
|
return -1;
|
|
}
|
|
|
|
if (!(handle->flags & UV_HANDLE_BOUND) &&
|
|
uv_tcp_bind(handle, uv_addr_ip4_any_) < 0)
|
|
return -1;
|
|
|
|
if (!handle->func_connectex) {
|
|
if(!uv_get_connectex_function(handle->socket, &handle->func_connectex)) {
|
|
uv__set_sys_error(loop, WSAEAFNOSUPPORT);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
uv_req_init(loop, (uv_req_t*) req);
|
|
req->type = UV_CONNECT;
|
|
req->handle = (uv_stream_t*) handle;
|
|
req->cb = cb;
|
|
memset(&req->overlapped, 0, sizeof(req->overlapped));
|
|
|
|
success = handle->func_connectex(handle->socket,
|
|
(struct sockaddr*) &address,
|
|
addrsize,
|
|
NULL,
|
|
0,
|
|
&bytes,
|
|
&req->overlapped);
|
|
|
|
if (UV_SUCCEEDED_WITHOUT_IOCP(success)) {
|
|
/* Process the req without IOCP. */
|
|
handle->reqs_pending++;
|
|
REGISTER_HANDLE_REQ(loop, handle, req);
|
|
uv_insert_pending_req(loop, (uv_req_t*)req);
|
|
} else if (UV_SUCCEEDED_WITH_IOCP(success)) {
|
|
/* The req will be processed with IOCP. */
|
|
handle->reqs_pending++;
|
|
REGISTER_HANDLE_REQ(loop, handle, req);
|
|
} else {
|
|
uv__set_sys_error(loop, WSAGetLastError());
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv__tcp_connect6(uv_connect_t* req,
|
|
uv_tcp_t* handle,
|
|
struct sockaddr_in6 address,
|
|
uv_connect_cb cb) {
|
|
uv_loop_t* loop = handle->loop;
|
|
int addrsize = sizeof(struct sockaddr_in6);
|
|
BOOL success;
|
|
DWORD bytes;
|
|
|
|
if (!uv_allow_ipv6) {
|
|
uv__set_sys_error(loop, WSAEAFNOSUPPORT);
|
|
return -1;
|
|
}
|
|
|
|
if (handle->flags & UV_HANDLE_BIND_ERROR) {
|
|
uv__set_sys_error(loop, handle->bind_error);
|
|
return -1;
|
|
}
|
|
|
|
if (!(handle->flags & UV_HANDLE_BOUND) &&
|
|
uv_tcp_bind6(handle, uv_addr_ip6_any_) < 0)
|
|
return -1;
|
|
|
|
if (!handle->func_connectex) {
|
|
if(!uv_get_connectex_function(handle->socket, &handle->func_connectex)) {
|
|
uv__set_sys_error(loop, WSAEAFNOSUPPORT);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
uv_req_init(loop, (uv_req_t*) req);
|
|
req->type = UV_CONNECT;
|
|
req->handle = (uv_stream_t*) handle;
|
|
req->cb = cb;
|
|
memset(&req->overlapped, 0, sizeof(req->overlapped));
|
|
|
|
success = handle->func_connectex(handle->socket,
|
|
(struct sockaddr*) &address,
|
|
addrsize,
|
|
NULL,
|
|
0,
|
|
&bytes,
|
|
&req->overlapped);
|
|
|
|
if (UV_SUCCEEDED_WITHOUT_IOCP(success)) {
|
|
handle->reqs_pending++;
|
|
REGISTER_HANDLE_REQ(loop, handle, req);
|
|
uv_insert_pending_req(loop, (uv_req_t*)req);
|
|
} else if (UV_SUCCEEDED_WITH_IOCP(success)) {
|
|
handle->reqs_pending++;
|
|
REGISTER_HANDLE_REQ(loop, handle, req);
|
|
} else {
|
|
uv__set_sys_error(loop, WSAGetLastError());
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv_tcp_getsockname(uv_tcp_t* handle, struct sockaddr* name,
|
|
int* namelen) {
|
|
uv_loop_t* loop = handle->loop;
|
|
int result;
|
|
|
|
if (!(handle->flags & UV_HANDLE_BOUND)) {
|
|
uv__set_sys_error(loop, WSAEINVAL);
|
|
return -1;
|
|
}
|
|
|
|
if (handle->flags & UV_HANDLE_BIND_ERROR) {
|
|
uv__set_sys_error(loop, handle->bind_error);
|
|
return -1;
|
|
}
|
|
|
|
result = getsockname(handle->socket, name, namelen);
|
|
if (result != 0) {
|
|
uv__set_sys_error(loop, WSAGetLastError());
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv_tcp_getpeername(uv_tcp_t* handle, struct sockaddr* name,
|
|
int* namelen) {
|
|
uv_loop_t* loop = handle->loop;
|
|
int result;
|
|
|
|
if (!(handle->flags & UV_HANDLE_BOUND)) {
|
|
uv__set_sys_error(loop, WSAEINVAL);
|
|
return -1;
|
|
}
|
|
|
|
if (handle->flags & UV_HANDLE_BIND_ERROR) {
|
|
uv__set_sys_error(loop, handle->bind_error);
|
|
return -1;
|
|
}
|
|
|
|
result = getpeername(handle->socket, name, namelen);
|
|
if (result != 0) {
|
|
uv__set_sys_error(loop, WSAGetLastError());
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv_tcp_write(uv_loop_t* loop, uv_write_t* req, uv_tcp_t* handle,
|
|
uv_buf_t bufs[], int bufcnt, uv_write_cb cb) {
|
|
int result;
|
|
DWORD bytes;
|
|
|
|
if (!(handle->flags & UV_HANDLE_CONNECTION)) {
|
|
uv__set_sys_error(loop, WSAEINVAL);
|
|
return -1;
|
|
}
|
|
|
|
if (handle->flags & UV_HANDLE_SHUTTING) {
|
|
uv__set_sys_error(loop, WSAESHUTDOWN);
|
|
return -1;
|
|
}
|
|
|
|
uv_req_init(loop, (uv_req_t*) req);
|
|
req->type = UV_WRITE;
|
|
req->handle = (uv_stream_t*) handle;
|
|
req->cb = cb;
|
|
memset(&req->overlapped, 0, sizeof(req->overlapped));
|
|
|
|
/* Prepare the overlapped structure. */
|
|
memset(&(req->overlapped), 0, sizeof(req->overlapped));
|
|
if (handle->flags & UV_HANDLE_EMULATE_IOCP) {
|
|
req->event_handle = CreateEvent(NULL, 0, 0, NULL);
|
|
if (!req->event_handle) {
|
|
uv_fatal_error(GetLastError(), "CreateEvent");
|
|
}
|
|
req->overlapped.hEvent = (HANDLE) ((ULONG_PTR) req->event_handle | 1);
|
|
req->wait_handle = INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
result = WSASend(handle->socket,
|
|
(WSABUF*)bufs,
|
|
bufcnt,
|
|
&bytes,
|
|
0,
|
|
&req->overlapped,
|
|
NULL);
|
|
|
|
if (UV_SUCCEEDED_WITHOUT_IOCP(result == 0)) {
|
|
/* Request completed immediately. */
|
|
req->queued_bytes = 0;
|
|
handle->reqs_pending++;
|
|
handle->write_reqs_pending++;
|
|
REGISTER_HANDLE_REQ(loop, handle, req);
|
|
uv_insert_pending_req(loop, (uv_req_t*) req);
|
|
} else if (UV_SUCCEEDED_WITH_IOCP(result == 0)) {
|
|
/* Request queued by the kernel. */
|
|
req->queued_bytes = uv_count_bufs(bufs, bufcnt);
|
|
handle->reqs_pending++;
|
|
handle->write_reqs_pending++;
|
|
REGISTER_HANDLE_REQ(loop, handle, req);
|
|
handle->write_queue_size += req->queued_bytes;
|
|
if (handle->flags & UV_HANDLE_EMULATE_IOCP &&
|
|
!RegisterWaitForSingleObject(&req->wait_handle,
|
|
req->event_handle, post_write_completion, (void*) req,
|
|
INFINITE, WT_EXECUTEINWAITTHREAD | WT_EXECUTEONLYONCE)) {
|
|
SET_REQ_ERROR(req, GetLastError());
|
|
uv_insert_pending_req(loop, (uv_req_t*)req);
|
|
}
|
|
} else {
|
|
/* Send failed due to an error. */
|
|
uv__set_sys_error(loop, WSAGetLastError());
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void uv_process_tcp_read_req(uv_loop_t* loop, uv_tcp_t* handle,
|
|
uv_req_t* req) {
|
|
DWORD bytes, flags, err;
|
|
uv_buf_t buf;
|
|
|
|
assert(handle->type == UV_TCP);
|
|
|
|
handle->flags &= ~UV_HANDLE_READ_PENDING;
|
|
|
|
if (!REQ_SUCCESS(req)) {
|
|
/* An error occurred doing the read. */
|
|
if ((handle->flags & UV_HANDLE_READING) ||
|
|
!(handle->flags & UV_HANDLE_ZERO_READ)) {
|
|
handle->flags &= ~UV_HANDLE_READING;
|
|
DECREASE_ACTIVE_COUNT(loop, handle);
|
|
buf = (handle->flags & UV_HANDLE_ZERO_READ) ?
|
|
uv_buf_init(NULL, 0) : handle->read_buffer;
|
|
|
|
err = GET_REQ_SOCK_ERROR(req);
|
|
|
|
if (err == WSAECONNABORTED) {
|
|
/*
|
|
* Turn WSAECONNABORTED into UV_ECONNRESET to be consistent with Unix.
|
|
*/
|
|
uv__set_error(loop, UV_ECONNRESET, err);
|
|
} else {
|
|
uv__set_sys_error(loop, err);
|
|
}
|
|
|
|
handle->read_cb((uv_stream_t*)handle, -1, buf);
|
|
}
|
|
} else {
|
|
if (!(handle->flags & UV_HANDLE_ZERO_READ)) {
|
|
/* The read was done with a non-zero buffer length. */
|
|
if (req->overlapped.InternalHigh > 0) {
|
|
/* Successful read */
|
|
handle->read_cb((uv_stream_t*)handle,
|
|
req->overlapped.InternalHigh,
|
|
handle->read_buffer);
|
|
/* Read again only if bytes == buf.len */
|
|
if (req->overlapped.InternalHigh < handle->read_buffer.len) {
|
|
goto done;
|
|
}
|
|
} else {
|
|
/* Connection closed */
|
|
if (handle->flags & UV_HANDLE_READING) {
|
|
handle->flags &= ~UV_HANDLE_READING;
|
|
DECREASE_ACTIVE_COUNT(loop, handle);
|
|
}
|
|
handle->flags |= UV_HANDLE_EOF;
|
|
|
|
uv__set_error(loop, UV_EOF, ERROR_SUCCESS);
|
|
buf.base = 0;
|
|
buf.len = 0;
|
|
handle->read_cb((uv_stream_t*)handle, -1, handle->read_buffer);
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* Do nonblocking reads until the buffer is empty */
|
|
while (handle->flags & UV_HANDLE_READING) {
|
|
buf = handle->alloc_cb((uv_handle_t*) handle, 65536);
|
|
assert(buf.len > 0);
|
|
flags = 0;
|
|
if (WSARecv(handle->socket,
|
|
(WSABUF*)&buf,
|
|
1,
|
|
&bytes,
|
|
&flags,
|
|
NULL,
|
|
NULL) != SOCKET_ERROR) {
|
|
if (bytes > 0) {
|
|
/* Successful read */
|
|
handle->read_cb((uv_stream_t*)handle, bytes, buf);
|
|
/* Read again only if bytes == buf.len */
|
|
if (bytes < buf.len) {
|
|
break;
|
|
}
|
|
} else {
|
|
/* Connection closed */
|
|
handle->flags &= ~UV_HANDLE_READING;
|
|
DECREASE_ACTIVE_COUNT(loop, handle);
|
|
handle->flags |= UV_HANDLE_EOF;
|
|
|
|
uv__set_error(loop, UV_EOF, ERROR_SUCCESS);
|
|
handle->read_cb((uv_stream_t*)handle, -1, buf);
|
|
break;
|
|
}
|
|
} else {
|
|
err = WSAGetLastError();
|
|
if (err == WSAEWOULDBLOCK) {
|
|
/* Read buffer was completely empty, report a 0-byte read. */
|
|
uv__set_sys_error(loop, WSAEWOULDBLOCK);
|
|
handle->read_cb((uv_stream_t*)handle, 0, buf);
|
|
} else {
|
|
/* Ouch! serious error. */
|
|
handle->flags &= ~UV_HANDLE_READING;
|
|
DECREASE_ACTIVE_COUNT(loop, handle);
|
|
|
|
if (err == WSAECONNABORTED) {
|
|
/* Turn WSAECONNABORTED into UV_ECONNRESET to be consistent with */
|
|
/* Unix. */
|
|
uv__set_error(loop, UV_ECONNRESET, err);
|
|
} else {
|
|
uv__set_sys_error(loop, err);
|
|
}
|
|
|
|
handle->read_cb((uv_stream_t*)handle, -1, buf);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
done:
|
|
/* Post another read if still reading and not closing. */
|
|
if ((handle->flags & UV_HANDLE_READING) &&
|
|
!(handle->flags & UV_HANDLE_READ_PENDING)) {
|
|
uv_tcp_queue_read(loop, handle);
|
|
}
|
|
}
|
|
|
|
DECREASE_PENDING_REQ_COUNT(handle);
|
|
}
|
|
|
|
|
|
void uv_process_tcp_write_req(uv_loop_t* loop, uv_tcp_t* handle,
|
|
uv_write_t* req) {
|
|
assert(handle->type == UV_TCP);
|
|
|
|
assert(handle->write_queue_size >= req->queued_bytes);
|
|
handle->write_queue_size -= req->queued_bytes;
|
|
|
|
UNREGISTER_HANDLE_REQ(loop, handle, req);
|
|
|
|
if (handle->flags & UV_HANDLE_EMULATE_IOCP) {
|
|
if (req->wait_handle != INVALID_HANDLE_VALUE) {
|
|
UnregisterWait(req->wait_handle);
|
|
}
|
|
if (req->event_handle) {
|
|
CloseHandle(req->event_handle);
|
|
}
|
|
}
|
|
|
|
if (req->cb) {
|
|
uv__set_sys_error(loop, GET_REQ_SOCK_ERROR(req));
|
|
((uv_write_cb)req->cb)(req, loop->last_err.code == UV_OK ? 0 : -1);
|
|
}
|
|
|
|
handle->write_reqs_pending--;
|
|
if (handle->flags & UV_HANDLE_SHUTTING &&
|
|
handle->write_reqs_pending == 0) {
|
|
uv_want_endgame(loop, (uv_handle_t*)handle);
|
|
}
|
|
|
|
DECREASE_PENDING_REQ_COUNT(handle);
|
|
}
|
|
|
|
|
|
void uv_process_tcp_accept_req(uv_loop_t* loop, uv_tcp_t* handle,
|
|
uv_req_t* raw_req) {
|
|
uv_tcp_accept_t* req = (uv_tcp_accept_t*) raw_req;
|
|
|
|
assert(handle->type == UV_TCP);
|
|
|
|
/* If handle->accepted_socket is not a valid socket, then */
|
|
/* uv_queue_accept must have failed. This is a serious error. We stop */
|
|
/* accepting connections and report this error to the connection */
|
|
/* callback. */
|
|
if (req->accept_socket == INVALID_SOCKET) {
|
|
if (handle->flags & UV_HANDLE_LISTENING) {
|
|
handle->flags &= ~UV_HANDLE_LISTENING;
|
|
DECREASE_ACTIVE_COUNT(loop, handle);
|
|
if (handle->connection_cb) {
|
|
uv__set_sys_error(loop, GET_REQ_SOCK_ERROR(req));
|
|
handle->connection_cb((uv_stream_t*)handle, -1);
|
|
}
|
|
}
|
|
} else if (REQ_SUCCESS(req) &&
|
|
setsockopt(req->accept_socket,
|
|
SOL_SOCKET,
|
|
SO_UPDATE_ACCEPT_CONTEXT,
|
|
(char*)&handle->socket,
|
|
sizeof(handle->socket)) == 0) {
|
|
req->next_pending = handle->pending_accepts;
|
|
handle->pending_accepts = req;
|
|
|
|
/* Accept and SO_UPDATE_ACCEPT_CONTEXT were successful. */
|
|
if (handle->connection_cb) {
|
|
handle->connection_cb((uv_stream_t*)handle, 0);
|
|
}
|
|
} else {
|
|
/* Error related to accepted socket is ignored because the server */
|
|
/* socket may still be healthy. If the server socket is broken
|
|
/* uv_queue_accept will detect it. */
|
|
closesocket(req->accept_socket);
|
|
req->accept_socket = INVALID_SOCKET;
|
|
if (handle->flags & UV_HANDLE_LISTENING) {
|
|
uv_tcp_queue_accept(handle, req);
|
|
}
|
|
}
|
|
|
|
DECREASE_PENDING_REQ_COUNT(handle);
|
|
}
|
|
|
|
|
|
void uv_process_tcp_connect_req(uv_loop_t* loop, uv_tcp_t* handle,
|
|
uv_connect_t* req) {
|
|
assert(handle->type == UV_TCP);
|
|
|
|
UNREGISTER_HANDLE_REQ(loop, handle, req);
|
|
|
|
if (REQ_SUCCESS(req)) {
|
|
if (setsockopt(handle->socket,
|
|
SOL_SOCKET,
|
|
SO_UPDATE_CONNECT_CONTEXT,
|
|
NULL,
|
|
0) == 0) {
|
|
uv_connection_init((uv_stream_t*)handle);
|
|
loop->active_tcp_streams++;
|
|
((uv_connect_cb)req->cb)(req, 0);
|
|
} else {
|
|
uv__set_sys_error(loop, WSAGetLastError());
|
|
((uv_connect_cb)req->cb)(req, -1);
|
|
}
|
|
} else {
|
|
uv__set_sys_error(loop, GET_REQ_SOCK_ERROR(req));
|
|
((uv_connect_cb)req->cb)(req, -1);
|
|
}
|
|
|
|
DECREASE_PENDING_REQ_COUNT(handle);
|
|
}
|
|
|
|
|
|
int uv_tcp_import(uv_tcp_t* tcp, WSAPROTOCOL_INFOW* socket_protocol_info,
|
|
int tcp_connection) {
|
|
SOCKET socket = WSASocketW(AF_INET,
|
|
SOCK_STREAM,
|
|
IPPROTO_IP,
|
|
socket_protocol_info,
|
|
0,
|
|
WSA_FLAG_OVERLAPPED);
|
|
|
|
if (socket == INVALID_SOCKET) {
|
|
uv__set_sys_error(tcp->loop, WSAGetLastError());
|
|
return -1;
|
|
}
|
|
|
|
tcp->flags |= UV_HANDLE_BOUND;
|
|
tcp->flags |= UV_HANDLE_SHARED_TCP_SOCKET;
|
|
|
|
if (tcp_connection) {
|
|
uv_connection_init((uv_stream_t*)tcp);
|
|
}
|
|
|
|
if (socket_protocol_info->iAddressFamily == AF_INET6) {
|
|
tcp->flags |= UV_HANDLE_IPV6;
|
|
}
|
|
|
|
if (uv_tcp_set_socket(tcp->loop, tcp, socket, 1) != 0) {
|
|
return -1;
|
|
}
|
|
|
|
tcp->loop->active_tcp_streams++;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv_tcp_nodelay(uv_tcp_t* handle, int enable) {
|
|
if (handle->socket != INVALID_SOCKET &&
|
|
uv__tcp_nodelay(handle, handle->socket, enable)) {
|
|
return -1;
|
|
}
|
|
|
|
if (enable) {
|
|
handle->flags |= UV_HANDLE_TCP_NODELAY;
|
|
} else {
|
|
handle->flags &= ~UV_HANDLE_TCP_NODELAY;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv_tcp_keepalive(uv_tcp_t* handle, int enable, unsigned int delay) {
|
|
if (handle->socket != INVALID_SOCKET &&
|
|
uv__tcp_keepalive(handle, handle->socket, enable, delay)) {
|
|
return -1;
|
|
}
|
|
|
|
if (enable) {
|
|
handle->flags |= UV_HANDLE_TCP_KEEPALIVE;
|
|
} else {
|
|
handle->flags &= ~UV_HANDLE_TCP_KEEPALIVE;
|
|
}
|
|
|
|
/* TODO: Store delay if handle->socket isn't created yet. */
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv_tcp_duplicate_socket(uv_tcp_t* handle, int pid,
|
|
LPWSAPROTOCOL_INFOW protocol_info) {
|
|
if (!(handle->flags & UV_HANDLE_CONNECTION)) {
|
|
/*
|
|
* We're about to share the socket with another process. Because
|
|
* this is a listening socket, we assume that the other process will
|
|
* be accepting connections on it. So, before sharing the socket
|
|
* with another process, we call listen here in the parent process.
|
|
*/
|
|
|
|
if (!(handle->flags & UV_HANDLE_LISTENING)) {
|
|
if (!(handle->flags & UV_HANDLE_BOUND)) {
|
|
uv__set_artificial_error(handle->loop, UV_EINVAL);
|
|
return -1;
|
|
}
|
|
if (listen(handle->socket, SOMAXCONN) == SOCKET_ERROR) {
|
|
uv__set_sys_error(handle->loop, WSAGetLastError());
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (WSADuplicateSocketW(handle->socket, pid, protocol_info)) {
|
|
uv__set_sys_error(handle->loop, WSAGetLastError());
|
|
return -1;
|
|
}
|
|
|
|
handle->flags |= UV_HANDLE_SHARED_TCP_SOCKET;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv_tcp_simultaneous_accepts(uv_tcp_t* handle, int enable) {
|
|
if (handle->flags & UV_HANDLE_CONNECTION) {
|
|
uv__set_artificial_error(handle->loop, UV_EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
/* Check if we're already in the desired mode. */
|
|
if ((enable && !(handle->flags & UV_HANDLE_TCP_SINGLE_ACCEPT)) ||
|
|
(!enable && handle->flags & UV_HANDLE_TCP_SINGLE_ACCEPT)) {
|
|
return 0;
|
|
}
|
|
|
|
/* Don't allow switching from single pending accept to many. */
|
|
if (enable) {
|
|
uv__set_artificial_error(handle->loop, UV_ENOTSUP);
|
|
return -1;
|
|
}
|
|
|
|
/* Check if we're in a middle of changing the number of pending accepts. */
|
|
if (handle->flags & UV_HANDLE_TCP_ACCEPT_STATE_CHANGING) {
|
|
return 0;
|
|
}
|
|
|
|
handle->flags |= UV_HANDLE_TCP_SINGLE_ACCEPT;
|
|
|
|
/* Flip the changing flag if we have already queued multiple accepts. */
|
|
if (handle->flags & UV_HANDLE_LISTENING) {
|
|
handle->flags |= UV_HANDLE_TCP_ACCEPT_STATE_CHANGING;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void uv_tcp_close(uv_loop_t* loop, uv_tcp_t* tcp) {
|
|
int non_ifs_lsp;
|
|
int close_socket = 1;
|
|
|
|
/*
|
|
* In order for winsock to do a graceful close there must not be
|
|
* any pending reads.
|
|
*/
|
|
if (tcp->flags & UV_HANDLE_READ_PENDING) {
|
|
/* Just do shutdown on non-shared sockets, which ensures graceful close. */
|
|
if (!(tcp->flags & UV_HANDLE_SHARED_TCP_SOCKET)) {
|
|
shutdown(tcp->socket, SD_SEND);
|
|
tcp->flags |= UV_HANDLE_SHUT;
|
|
} else {
|
|
/* Check if we have any non-IFS LSPs stacked on top of TCP */
|
|
non_ifs_lsp = (tcp->flags & UV_HANDLE_IPV6) ? uv_tcp_non_ifs_lsp_ipv6 :
|
|
uv_tcp_non_ifs_lsp_ipv4;
|
|
|
|
if (!non_ifs_lsp) {
|
|
/*
|
|
* Shared socket with no non-IFS LSPs, request to cancel pending I/O.
|
|
* The socket will be closed inside endgame.
|
|
*/
|
|
CancelIo((HANDLE)tcp->socket);
|
|
close_socket = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (tcp->flags & UV_HANDLE_READING) {
|
|
tcp->flags &= ~UV_HANDLE_READING;
|
|
DECREASE_ACTIVE_COUNT(loop, tcp);
|
|
}
|
|
|
|
if (tcp->flags & UV_HANDLE_LISTENING) {
|
|
tcp->flags &= ~UV_HANDLE_LISTENING;
|
|
DECREASE_ACTIVE_COUNT(loop, tcp);
|
|
}
|
|
|
|
if (close_socket) {
|
|
closesocket(tcp->socket);
|
|
tcp->flags |= UV_HANDLE_TCP_SOCKET_CLOSED;
|
|
}
|
|
|
|
uv__handle_start(tcp);
|
|
|
|
if (tcp->reqs_pending == 0) {
|
|
uv_want_endgame(tcp->loop, (uv_handle_t*)tcp);
|
|
}
|
|
}
|