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Copy pathlua_tcp_handle.cpp
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lua_tcp_handle.cpp
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#include "lua_tcp_handle.h"
#include "request.h"
#include "context_lua.h"
#include "network.h"
#include "lbuffer.h"
#include "node_lua.h"
#include "uv_tcp_handle.h"
#define TCP_LISTEN_SOCKET_METATABLE "class tcp_listen_handle_t"
#define TCP_SOCKET_METATABLE "class tcp_socket_handle_t"
/////////////////////////////////////////////////////////////////////////////////////////////////////////
static int32_t lua_tcp_close(lua_State* L)
{
if (luaL_testudata(L, 1, TCP_LISTEN_SOCKET_METATABLE)) {
return lua_tcp_listen_handle_t::close(L);
} else {
return lua_tcp_socket_handle_t::close(L);
}
}
static lua_handle_base_t* lua_check_tcp_handle(lua_State* L, int32_t idx)
{
lua_handle_base_t* handle;
handle = (lua_handle_base_t*)luaL_testudata(L, idx, TCP_LISTEN_SOCKET_METATABLE);
if (handle != NULL) {
return handle;
}
handle = (lua_handle_base_t*)luaL_testudata(L, idx, TCP_SOCKET_METATABLE);
if (handle != NULL) {
return handle;
}
return NULL;
}
static int32_t lua_tcp_is_closed(lua_State* L)
{
lua_handle_base_t* handle = lua_check_tcp_handle(L, 1);
if (handle != NULL) {
lua_pushboolean(L, handle->is_closed());
return 1;
}
lua_pushboolean(L, 0);
return 1;
}
static int32_t lua_tcp_get_fd(lua_State* L)
{
lua_handle_base_t* handle = lua_check_tcp_handle(L, 1);
if (handle != NULL) {
int64_t fd = SOCKET_MAKE_FD(handle->get_handle_ref(), context_lua_t::lua_get_context_handle(L));
lua_pushinteger(L, fd);
return 1;
}
return 0;
}
static int32_t lua_tcp_fd_src(lua_State* L)
{
int64_t fd = luaL_checkinteger(L, 1);
lua_pushinteger(L, SOCKET_FD_SOURCE(fd));
return 1;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////
lua_tcp_listen_handle_t* lua_tcp_listen_handle_t::create_tcp_listen_socket(uv_tcp_listen_handle_t* handle, lua_State* L)
{
lua_tcp_listen_handle_t* socket = new(lua_newuserdata(L, sizeof(lua_tcp_listen_handle_t)))lua_tcp_listen_handle_t(handle, L);
if (luaL_newmetatable(L, TCP_LISTEN_SOCKET_METATABLE)) { /* create new metatable */
lua_pushvalue(L, -1);
lua_setfield(L, -2, "__index");
lua_pushcfunction(L, lua_tcp_listen_handle_t::release);
lua_setfield(L, -2, "__gc");
lua_pushcfunction(L, lua_tcp_listen_handle_t::accept);
lua_setfield(L, -2, "accept");
lua_pushcfunction(L, lua_tcp_listen_handle_t::close);
lua_setfield(L, -2, "close");
lua_pushcfunction(L, lua_tcp_is_closed);
lua_setfield(L, -2, "is_closed");
lua_pushcfunction(L, lua_tcp_get_fd);
lua_setfield(L, -2, "fd");
}
lua_setmetatable(L, -2);
return socket;
}
int32_t lua_tcp_listen_handle_t::_listen(lua_State* L, bool ipv6)
{
size_t host_len;
const char* host = luaL_checklstring(L, 1, &host_len);
if (host_len + 1 > REQUEST_SPARE_SIZE(request_tcp_listen_t)) {
luaL_argerror(L, 1, "listen host invalid(too long)");
}
uint16_t port = luaL_checkunsigned(L, 2);
bool reuse = false;
int32_t top = lua_gettop(L);
int32_t callback = 0;
if (top >= 3) {
if (lua_isfunction(L, 3)) {
callback = 3;
} else {
reuse = lua_toboolean(L, 3);
if (top >= 4) {
luaL_checktype(L, 4, LUA_TFUNCTION);
callback = 4;
}
}
}
context_lua_t* lctx = context_lua_t::lua_get_context(L);
request_t& request = lctx->get_yielding_request();
request.m_type = REQUEST_TCP_LISTEN;
request.m_length = REQUEST_SIZE(request_tcp_listen_t, host_len + 1);
request.m_tcp_listen.m_source = lctx->get_handle();
request.m_tcp_listen.m_reuse = reuse;
request.m_tcp_listen.m_port = port;
request.m_tcp_listen.m_ipv6 = ipv6;
memcpy(REQUEST_SPARE_PTR(request.m_tcp_listen), host, host_len + 1);
if (callback > 0) { /* nonblocking callback */
lua_settop(L, callback);
request.m_tcp_listen.m_session = context_lua_t::lua_ref_callback(L, callback - 1, LUA_REFNIL, listen_callback_adjust);
singleton_ref(network_t).send_request(request);
return 0;
} else { /* blocking */
return lctx->lua_yield_send(L, 0, listen_yield_finalize, NULL, listen_yield_continue);
}
}
int32_t lua_tcp_listen_handle_t::listens(lua_State* L)
{
size_t sock_len;
const char* sock = luaL_checklstring(L, 1, &sock_len);
if (sock_len + 1 > REQUEST_SPARE_SIZE(request_tcp_listens_t)) {
luaL_argerror(L, 1, "listen sock name invalid(too long)");
}
int32_t top = lua_gettop(L);
int32_t callback = 0;
if (top >= 2) {
luaL_checktype(L, 2, LUA_TFUNCTION);
callback = 2;
}
context_lua_t* lctx = context_lua_t::lua_get_context(L);
request_t& request = lctx->get_yielding_request();
request.m_type = REQUEST_TCP_LISTENS;
request.m_length = REQUEST_SIZE(request_tcp_listens_t, sock_len + 1);
request.m_tcp_listens.m_source = lctx->get_handle();
memcpy(REQUEST_SPARE_PTR(request.m_tcp_listens), sock, sock_len + 1);
if (callback > 0) { /* nonblocking callback */
lua_settop(L, callback);
request.m_tcp_listens.m_session = context_lua_t::lua_ref_callback(L, callback - 1, LUA_REFNIL, listen_callback_adjust);
singleton_ref(network_t).send_request(request);
return 0;
} else { /* blocking */
return lctx->lua_yield_send(L, 0, listen_yield_finalize, NULL, listen_yield_continue);
}
}
int32_t lua_tcp_listen_handle_t::listen_yield_finalize(lua_State *root_coro, lua_State *main_coro, void *userdata, uint32_t destination)
{
if (root_coro != NULL) {
context_lua_t* lctx = context_lua_t::lua_get_context(root_coro);
request_t& request = lctx->get_yielding_request();
if (request.m_type == REQUEST_TCP_LISTEN) {
request.m_tcp_listen.m_session = context_lua_t::lua_ref_yield_coroutine(root_coro);
} else {
request.m_tcp_listens.m_session = context_lua_t::lua_ref_yield_coroutine(root_coro);
}
singleton_ref(network_t).send_request(request);
}
return UV_OK;
}
int32_t lua_tcp_listen_handle_t::listen_yield_continue(lua_State* L, int status, lua_KContext ctx)
{
uv_tcp_listen_handle_t* listen_handle = (uv_tcp_listen_handle_t*)lua_touserdata(L, -3);
if (listen_handle) {
lua_pop(L, 3);
create_tcp_listen_socket(listen_handle, L);
} else {
lua_pop(L, 2);
if (context_lua_t::lua_get_context(L)->get_yielding_status() != UV_OK) {
context_lua_t::lua_throw(L, -1);
}
}
return 2;
}
int32_t lua_tcp_listen_handle_t::listen_callback_adjust(lua_State* L)
{
uv_tcp_listen_handle_t* listen_handle = (uv_tcp_listen_handle_t*)lua_touserdata(L, -3);
if (listen_handle) {
lua_pop(L, 3);
create_tcp_listen_socket(listen_handle, L);
} else {
lua_pop(L, 2);
}
return 2;
}
int32_t lua_tcp_listen_handle_t::listen(lua_State* L)
{
return _listen(L, false);
}
int32_t lua_tcp_listen_handle_t::listen6(lua_State* L)
{
return _listen(L, true);
}
int32_t lua_tcp_listen_handle_t::accept(lua_State* L)
{
lua_tcp_listen_handle_t* listen_socket = (lua_tcp_listen_handle_t*)luaL_checkudata(L, 1, TCP_LISTEN_SOCKET_METATABLE);
if (listen_socket->is_closed()) {
return luaL_error(L, "attempt to perform accept on a invalid or closed listen socket");
}
uint64_t timeout = 0;
bool nonblocking = false;
if (lua_gettop(L) >= 2) {
if (lua_isfunction(L, 2)) {
nonblocking = true;
lua_settop(L, 2);
} else {
timeout = 1000 * luaL_checknumber(L, 2);
}
}
context_lua_t* lctx = context_lua_t::lua_get_context(L);
request_t& request = lctx->get_yielding_request();
request.m_type = REQUEST_TCP_ACCEPT;
request.m_length = REQUEST_SIZE(request_tcp_accept_t, 0);
request.m_tcp_accept.m_listen_handle = (uv_tcp_listen_handle_t*)listen_socket->m_uv_handle;
request.m_tcp_accept.m_blocking = !nonblocking;
if (nonblocking) { /* nonblocking callback */
listen_socket->m_accept_ref_sessions.make_nonblocking_callback(L, 1, accept_callback_adjust);
singleton_ref(network_t).send_request(request);
return 0;
} else { /* blocking */
return lctx->lua_yield_send(L, 0, accept_yield_finalize, listen_socket, accept_yield_continue, timeout);
}
}
int32_t lua_tcp_listen_handle_t::accept_yield_finalize(lua_State *root_coro, lua_State *main_coro, void *userdata, uint32_t destination)
{
if (root_coro != NULL) {
lua_tcp_listen_handle_t* listen_socket = (lua_tcp_listen_handle_t*)userdata;
context_lua_t* lctx = context_lua_t::lua_get_context(root_coro);
int32_t session = listen_socket->m_accept_ref_sessions.push_blocking(root_coro);
singleton_ref(network_t).send_request(lctx->get_yielding_request());
int64_t timeout = lctx->get_yielding_timeout();
if (timeout > 0) {
context_lua_t::lua_ref_timer(main_coro, session, timeout, 0, false, listen_socket, accept_timeout);
}
}
return UV_OK;
}
int32_t lua_tcp_listen_handle_t::accept_yield_continue(lua_State* L, int status, lua_KContext ctx)
{
uv_tcp_socket_handle_t* accept_handle = (uv_tcp_socket_handle_t*)lua_touserdata(L, -3);
if (accept_handle) {
lua_pop(L, 3);
lua_tcp_socket_handle_t::create_tcp_socket(accept_handle, L);
} else {
lua_pop(L, 2);
if (context_lua_t::lua_get_context(L)->get_yielding_status() != UV_OK) {
context_lua_t::lua_throw(L, -1);
}
}
return 2;
}
int32_t lua_tcp_listen_handle_t::accept_timeout(lua_State *L, int32_t session, void* userdata, bool is_repeat)
{
lua_tcp_listen_handle_t* listen_socket = (lua_tcp_listen_handle_t*)userdata;
context_lua_t* lctx = context_lua_t::lua_get_context(L);
message_t message(0, session, RESPONSE_TCP_ACCEPT, NL_ETIMEOUT);
return listen_socket->m_accept_ref_sessions.wakeup_one_fixed(lctx, message, false);
}
int32_t lua_tcp_listen_handle_t::accept_callback_adjust(lua_State* L)
{
uv_tcp_socket_handle_t* accept_handle = (uv_tcp_socket_handle_t*)lua_touserdata(L, -3);
if (accept_handle) {
lua_pop(L, 3);
lua_tcp_socket_handle_t::create_tcp_socket(accept_handle, L);
} else {
lua_pop(L, 2);
}
return 2;
}
int32_t lua_tcp_listen_handle_t::wakeup_listen(lua_State* L, message_t& message)
{
context_lua_t* lctx = context_lua_t::lua_get_context(L);
if (!lctx->wakeup_ref_session(message.m_session, message, true)) {
if (message_is_userdata(message)) {
close_uv_handle((uv_handle_base_t*)message_userdata(message));
}
return 0;
}
return 1;
}
int32_t lua_tcp_listen_handle_t::wakeup_accept(lua_State* L, message_t& message)
{
context_lua_t* lctx = context_lua_t::lua_get_context(L);
lua_tcp_listen_handle_t* socket = (lua_tcp_listen_handle_t*)get_lua_handle(L, message.m_session, SOCKET_SET);
if (socket) {
if (!socket->is_closed()) {
if (message_is_userdata(message)) {
if (socket->m_accept_ref_sessions.wakeup_once(lctx, message)) {
return 1;
}
close_uv_handle((uv_handle_base_t*)message_userdata(message));
return 0;
}
if (message_is_error(message)) {
socket->m_accept_ref_sessions.wakeup_all(lctx, message);
return 1;
}
return 0;
} else { /* listen socket is already closed */
if (message_is_userdata(message)) {
close_uv_handle((uv_handle_base_t*)message_userdata(message));
}
message_t error = message_t(message.m_source, message.m_session, RESPONSE_TCP_CLOSING, NL_ETCPLCLOSED);
socket->m_accept_ref_sessions.free_nonblocking_callback(L);
socket->m_accept_ref_sessions.wakeup_all_blocking(lctx, error);
return 1;
}
} else {
if (message_is_userdata(message)) {
close_uv_handle((uv_handle_base_t*)message_userdata(message));
return 0;
}
}
return 0;
}
int32_t lua_tcp_listen_handle_t::close(lua_State* L)
{
lua_tcp_listen_handle_t* socket = (lua_tcp_listen_handle_t*)luaL_checkudata(L, 1, TCP_LISTEN_SOCKET_METATABLE);
if (!socket->is_closed()) {
context_lua_t* lctx = context_lua_t::lua_get_context(L);
/* The message will wake up all blocking coroutine only*/
singleton_ref(node_lua_t).context_send(lctx, lctx->get_handle(), socket->m_lua_ref, RESPONSE_TCP_CLOSING, NL_ETCPLCLOSED);
socket->_close();
lua_pushboolean(L, 1);
} else {
lua_pushboolean(L, 0);
}
return 1;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////
lua_tcp_socket_handle_t::~lua_tcp_socket_handle_t()
{
release_read_overflow_buffers();
}
lua_tcp_socket_handle_t* lua_tcp_socket_handle_t::create_tcp_socket(uv_tcp_socket_handle_t* handle, lua_State* L)
{
lua_tcp_socket_handle_t* socket = new(lua_newuserdata(L, sizeof(lua_tcp_socket_handle_t)))lua_tcp_socket_handle_t(handle, L);
if (luaL_newmetatable(L, TCP_SOCKET_METATABLE)) { /* create new metatable */
lua_pushvalue(L, -1);
lua_setfield(L, -2, "__index");
lua_pushcfunction(L, lua_tcp_socket_handle_t::release);
lua_setfield(L, -2, "__gc");
lua_pushcfunction(L, lua_tcp_socket_handle_t::close);
lua_setfield(L, -2, "close");
lua_pushcfunction(L, lua_tcp_socket_handle_t::write);
lua_setfield(L, -2, "write");
lua_pushcfunction(L, lua_tcp_socket_handle_t::read);
lua_setfield(L, -2, "read");
lua_pushcfunction(L, lua_tcp_socket_handle_t::set_rwopt);
lua_setfield(L, -2, "set_rwopt");
lua_pushcfunction(L, lua_tcp_socket_handle_t::get_rwopt);
lua_setfield(L, -2, "get_rwopt");
lua_pushcfunction(L, lua_tcp_socket_handle_t::set_nodelay);
lua_setfield(L, -2, "set_nodelay");
lua_pushcfunction(L, lua_tcp_socket_handle_t::set_wshared);
lua_setfield(L, -2, "set_wshared");
lua_pushcfunction(L, lua_tcp_socket_handle_t::get_local_addr);
lua_setfield(L, -2, "local_addr");
lua_pushcfunction(L, lua_tcp_socket_handle_t::get_remote_addr);
lua_setfield(L, -2, "remote_addr");
lua_pushcfunction(L, lua_tcp_socket_handle_t::get_local_port);
lua_setfield(L, -2, "local_port");
lua_pushcfunction(L, lua_tcp_socket_handle_t::get_remote_port);
lua_setfield(L, -2, "remote_port");
lua_pushcfunction(L, lua_tcp_is_closed);
lua_setfield(L, -2, "is_closed");
lua_pushcfunction(L, lua_tcp_get_fd);
lua_setfield(L, -2, "fd");
}
lua_setmetatable(L, -2);
return socket;
}
int32_t lua_tcp_socket_handle_t::connect(lua_State* L)
{
return _connect(L, false);
}
int32_t lua_tcp_socket_handle_t::connect6(lua_State* L)
{
return _connect(L, true);
}
int32_t lua_tcp_socket_handle_t::_connect(lua_State* L, bool ipv6)
{
size_t host_len;
const char* host = luaL_checklstring(L, 1, &host_len);
if (host_len + 2 > REQUEST_SPARE_SIZE(request_tcp_connect_t)) {
luaL_argerror(L, 1, "connect host invalid(too long)");
}
uint16_t port = luaL_checkunsigned(L, 2);
int32_t top = lua_gettop(L);
uint64_t timeout = 0;
int32_t callback = 0;
if (top >= 3) {
if (lua_isfunction(L, 3)) {
callback = 3;
} else {
timeout = 1000 * luaL_checknumber(L, 3);
if (top >= 4) {
luaL_checktype(L, 4, LUA_TFUNCTION);
callback = 4;
}
}
}
context_lua_t* lctx = context_lua_t::lua_get_context(L);
request_t& request = lctx->get_yielding_request();
request.m_type = REQUEST_TCP_CONNECT;
request.m_length = REQUEST_SIZE(request_tcp_connect_t, host_len + 2);
request.m_tcp_connect.m_source = lctx->get_handle();
request.m_tcp_connect.m_remote_port = port;
request.m_tcp_connect.m_local_port = 0; /* we don't support it at this version */
request.m_tcp_connect.m_remote_ipv6 = ipv6;
request.m_tcp_connect.m_local_ipv6 = false; /* we don't support it at this version */
char* remote_host = REQUEST_SPARE_PTR(request.m_tcp_connect);
char* local_host = remote_host + host_len + 1;
memcpy(remote_host, host, host_len + 1);
*local_host = '\0'; /* we don't support it at this version */
if (callback > 0) { /* nonblocking callback */
lua_settop(L, callback);
request.m_tcp_connect.m_session = context_lua_t::lua_ref_callback(L, callback - 1, LUA_REFNIL, connect_callback_adjust);
singleton_ref(network_t).send_request(request);
if (timeout > 0) {
context_lua_t::lua_ref_timer(L, request.m_tcp_connect.m_session, timeout, 0, false);
}
return 0;
} else { /* blocking */
return lctx->lua_yield_send(L, 0, connect_yield_finalize, NULL, connect_yield_continue, timeout);
}
}
int32_t lua_tcp_socket_handle_t::connects(lua_State* L)
{
size_t sock_len;
const char* sock = luaL_checklstring(L, 1, &sock_len);
if (sock_len + 1 > REQUEST_SPARE_SIZE(request_tcp_connects_t)) {
luaL_argerror(L, 1, "connect sock name invalid(too long)");
}
int32_t top = lua_gettop(L);
uint64_t timeout = 0;
int32_t callback = 0;
if (top >= 2) {
if (lua_isfunction(L, 2)) {
callback = 2;
} else {
timeout = 1000 * luaL_checknumber(L, 2);
if (top >= 3) {
luaL_checktype(L, 3, LUA_TFUNCTION);
callback = 3;
}
}
}
context_lua_t* lctx = context_lua_t::lua_get_context(L);
request_t& request = lctx->get_yielding_request();
request.m_type = REQUEST_TCP_CONNECTS;
request.m_length = REQUEST_SIZE(request_tcp_connects_t, sock_len + 1);
request.m_tcp_connects.m_source = lctx->get_handle();
memcpy(REQUEST_SPARE_PTR(request.m_tcp_connects), sock, sock_len + 1);
if (callback > 0) { /* nonblocking callback */
lua_settop(L, callback);
request.m_tcp_connects.m_session = context_lua_t::lua_ref_callback(L, callback - 1, LUA_REFNIL, connect_callback_adjust);
singleton_ref(network_t).send_request(request);
if (timeout > 0) {
context_lua_t::lua_ref_timer(L, request.m_tcp_connects.m_session, timeout, 0, false);
}
return 0;
} else { /* blocking */
return lctx->lua_yield_send(L, 0, connect_yield_finalize, NULL, connect_yield_continue, timeout);
}
}
int32_t lua_tcp_socket_handle_t::connect_yield_finalize(lua_State *root_coro, lua_State *main_coro, void *userdata, uint32_t destination)
{
if (root_coro != NULL) {
context_lua_t* lctx = context_lua_t::lua_get_context(root_coro);
request_t& request = lctx->get_yielding_request();
uint32_t session = context_lua_t::lua_ref_yield_coroutine(root_coro);
if (request.m_type == REQUEST_TCP_CONNECT) {
request.m_tcp_connect.m_session = session;
} else {
request.m_tcp_connects.m_session = session;
}
singleton_ref(network_t).send_request(request);
int64_t timeout = lctx->get_yielding_timeout();
if (timeout > 0) {
context_lua_t::lua_ref_timer(main_coro, session, timeout, 0, false);
}
}
return UV_OK;
}
int32_t lua_tcp_socket_handle_t::connect_callback_adjust(lua_State* L)
{
uv_tcp_socket_handle_t* connect_handle = (uv_tcp_socket_handle_t*)lua_touserdata(L, -3);
if (connect_handle) {
lua_pop(L, 3);
lua_tcp_socket_handle_t::create_tcp_socket(connect_handle, L);
} else {
lua_pop(L, 2);
}
return 2;
}
int32_t lua_tcp_socket_handle_t::connect_yield_continue(lua_State* L, int status, lua_KContext ctx)
{
uv_tcp_socket_handle_t* connect_handle = (uv_tcp_socket_handle_t*)lua_touserdata(L, -3);
if (connect_handle) {
lua_pop(L, 3);
lua_tcp_socket_handle_t::create_tcp_socket(connect_handle, L);
} else {
lua_pop(L, 2);
if (context_lua_t::lua_get_context(L)->get_yielding_status() != UV_OK) {
context_lua_t::lua_throw(L, -1);
}
}
return 2;
}
int32_t lua_tcp_socket_handle_t::write(lua_State* L)
{
return !lua_isinteger(L, 1) ? write_handle(L) : write_fd(L);
}
int32_t lua_tcp_socket_handle_t::write_fd(lua_State* L)
{
int64_t fd = luaL_checkinteger(L, 1);
const char *s = NULL;
uint32_t length;
buffer_t* buffer = NULL;
if (fd <= 0) {
return luaL_error(L, "invalid shared socket fd");
}
if (((s = lua_tolstring(L, 2, (size_t*)&length)) == NULL) && ((buffer = (buffer_t*)luaL_testudata(L, 2, BUFFER_METATABLE)) == NULL)) {
luaL_argerror(L, 2, "string expected");
}
if (buffer) {
length = (uint32_t)buffer_data_length(*buffer);
}
bool safety = false;
bool nonblocking = false;
if (lua_gettop(L) >= 3) {
if (lua_isfunction(L, 3)) {
nonblocking = true;
lua_settop(L, 3);
} else {
safety = lua_toboolean(L, 3);
}
}
context_lua_t* lctx = context_lua_t::lua_get_context(L);
if (length == 0) { /* empty string or buffer */
if (nonblocking) {
int32_t session = context_lua_t::lua_ref_callback(L, 2, LUA_REFNIL, context_lua_t::common_callback_adjust);
singleton_ref(node_lua_t).context_send(lctx, lctx->get_handle(), session, RESPONSE_TCP_WRITE, UV_OK);
} else if (safety) { /* real blocking mode */
lua_pushboolean(L, true);
lua_pushinteger(L, UV_OK);
return 2;
}
return 0;
}
request_t& request = lctx->get_yielding_request();
request.m_type = REQUEST_TCP_WRITE;
request.m_length = REQUEST_SIZE(request_tcp_write_t, 0);
request.m_tcp_write.m_socket_fd = fd;
request.m_tcp_write.m_source = lctx->get_handle();
request.m_tcp_write.m_shared_write = true;
if (s) {
request.m_tcp_write.m_length = length; /* length > 0 */
request.m_tcp_write.m_string = (const char*)nl_memdup(s, length);
if (!request.m_tcp_write.m_string) {
return luaL_error(L, "attempt to send data(length %d) failed: memory not enough", length);
}
} else {
request.m_tcp_write.m_length = 0;
request.m_tcp_write.m_buffer = buffer_grab(*buffer);
}
if (nonblocking) { /*nonblocking callback mode*/
request.m_tcp_write.m_session = context_lua_t::lua_ref_callback(L, 2, LUA_REFNIL, context_lua_t::common_callback_adjust);
singleton_ref(network_t).send_request(request);
return 0;
} else { /* blocking mode */
if (!safety) { /* wait for nothing */
request.m_tcp_write.m_session = LUA_REFNIL;
singleton_ref(network_t).send_request(request);
return 0;
} else { /* real blocking mode */
return lctx->lua_yield_send(L, 0, write_yield_finalize, NULL, context_lua_t::common_yield_continue);
}
}
}
int32_t lua_tcp_socket_handle_t::write_handle(lua_State* L)
{
lua_tcp_socket_handle_t* socket = (lua_tcp_socket_handle_t*)luaL_checkudata(L, 1, TCP_SOCKET_METATABLE);
if (socket->is_closed()) {
return luaL_error(L, "attempt to send data on a invalid or closed socket");
}
const char *s = NULL;
uint32_t length;
buffer_t* buffer = NULL;
if (((s = lua_tolstring(L, 2, (size_t*)&length)) == NULL) && ((buffer = (buffer_t*)luaL_testudata(L, 2, BUFFER_METATABLE)) == NULL)) {
luaL_argerror(L, 2, "string expected");
}
if (buffer) {
length = (uint32_t)buffer_data_length(*buffer);
}
uv_tcp_socket_handle_t* handle = (uv_tcp_socket_handle_t*)socket->m_uv_handle;
if (!check_head_option_max(handle->m_write_head_option, length)) {
return luaL_error(L, "attempt to send data(length %d) too long(max %d)", length, handle->m_write_head_option.max);
}
bool safety = false;
bool nonblocking = false;
if (lua_gettop(L) >= 3) {
if (lua_isfunction(L, 3)) {
nonblocking = true;
lua_settop(L, 3);
} else {
safety = lua_toboolean(L, 3);
}
}
/* error already occurred in network thread, stop write immediately. */
uv_err_code err = UV_OK;
context_lua_t* lctx = context_lua_t::lua_get_context(L);
if (length == 0 || (err = handle->get_write_error()) != UV_OK) { /* empty string or buffer or error already occurred */
if (nonblocking) {
int32_t session = context_lua_t::lua_ref_callback(L, 2, LUA_REFNIL, context_lua_t::common_callback_adjust);
singleton_ref(node_lua_t).context_send(lctx, lctx->get_handle(), session, RESPONSE_TCP_WRITE, (length == 0 ? UV_OK : err));
} else if (safety) { /* real blocking mode */
lua_pushboolean(L, length == 0);
lua_pushinteger(L, err);
return 2;
}
return 0;
}
request_t& request = lctx->get_yielding_request();
request.m_type = REQUEST_TCP_WRITE;
request.m_length = REQUEST_SIZE(request_tcp_write_t, 0);
request.m_tcp_write.m_socket_handle = handle;
request.m_tcp_write.m_source = lctx->get_handle();
request.m_tcp_write.m_shared_write = false;
if (s) {
request.m_tcp_write.m_length = length; /* length > 0 */
request.m_tcp_write.m_string = (const char*)nl_memdup(s, length);
if (!request.m_tcp_write.m_string) {
return luaL_error(L, "attempt to send data(length %d) failed: memory not enough", length);
}
} else {
request.m_tcp_write.m_length = 0;
request.m_tcp_write.m_buffer = buffer_grab(*buffer);
}
if (nonblocking) { /*nonblocking callback mode*/
request.m_tcp_write.m_session = context_lua_t::lua_ref_callback(L, 2, LUA_REFNIL, context_lua_t::common_callback_adjust);
froze_head_option(handle->m_write_head_option);
singleton_ref(network_t).send_request(request);
return 0;
} else { /* blocking mode */
if (!safety) { /* wait for nothing */
request.m_tcp_write.m_session = LUA_REFNIL;
froze_head_option(handle->m_write_head_option);
singleton_ref(network_t).send_request(request);
return 0;
} else { /* real blocking mode */
return lctx->lua_yield_send(L, 0, write_yield_finalize, socket, context_lua_t::common_yield_continue);
}
}
}
int32_t lua_tcp_socket_handle_t::write_yield_finalize(lua_State *root_coro, lua_State *main_coro, void *userdata, uint32_t destination)
{
if (root_coro != NULL) { //yield succeeded
context_lua_t* lctx = context_lua_t::lua_get_context(root_coro);
request_t& request = lctx->get_yielding_request();
request.m_tcp_write.m_session = context_lua_t::lua_ref_yield_coroutine(root_coro);
if (userdata != NULL) {
uv_tcp_socket_handle_t* handle = (uv_tcp_socket_handle_t*)((lua_tcp_socket_handle_t*)userdata)->m_uv_handle;
froze_head_option(handle->m_write_head_option);
}
singleton_ref(network_t).send_request(request);
} else { //yield failed, clear your data in case of memory leak.
context_lua_t* lctx = context_lua_t::lua_get_context(root_coro);
request_t& request = lctx->get_yielding_request();
if (request.m_tcp_write.m_length > 0) {
nl_free((void*)request.m_tcp_write.m_string);
request.m_tcp_write.m_string = NULL;
request.m_tcp_write.m_length = 0;
} else {
buffer_release(request.m_tcp_write.m_buffer);
}
}
return UV_OK;
}
int32_t lua_tcp_socket_handle_t::read(lua_State* L)
{
lua_tcp_socket_handle_t* socket = (lua_tcp_socket_handle_t*)luaL_checkudata(L, 1, TCP_SOCKET_METATABLE);
if (socket->is_closed()) {
return luaL_error(L, "attempt to read data on a invalid or closed socket");
}
uv_tcp_socket_handle_t* handle = (uv_tcp_socket_handle_t*)socket->m_uv_handle;
uint64_t timeout = 0;
bool nonblocking = false;
if (lua_gettop(L) >= 2) {
if (lua_isfunction(L, 2)) {
nonblocking = true;
lua_settop(L, 2);
} else {
timeout = 1000 * luaL_checknumber(L, 2);
}
}
/* error already occurred in network thread, stop read immediately. */
context_lua_t* lctx = context_lua_t::lua_get_context(L);
request_t& request = lctx->get_yielding_request();
request.m_type = REQUEST_TCP_READ;
request.m_length = REQUEST_SIZE(request_tcp_read_t, 0);
request.m_tcp_read.m_socket_handle = handle;
request.m_tcp_read.m_blocking = !nonblocking;
if (nonblocking) { /* nonblocking callback */
if (socket->m_read_ref_sessions.make_nonblocking_callback(L, 1, context_lua_t::common_callback_adjust)) {
froze_head_option(handle->m_read_head_option);
if (handle->get_read_error() == UV_OK) {
singleton_ref(network_t).send_request(request);
}
if (!socket->m_read_overflow_buffers.empty()) { //do read over flow wake up(whether read error occurred or not)!!!
singleton_ref(node_lua_t).context_send(lctx, lctx->get_handle(), socket->m_lua_ref, RESPONSE_TCP_READ, NL_ETCPREADOVERFLOW);
}
}
return 0;
} else { /* blocking */
return lctx->lua_yield_send(L, 0, read_yield_finalize, socket, context_lua_t::common_yield_continue, timeout);
}
}
int32_t lua_tcp_socket_handle_t::read_yield_finalize(lua_State *root_coro, lua_State *main_coro, void *userdata, uint32_t destination)
{
if (root_coro != NULL) {
lua_tcp_socket_handle_t* socket = (lua_tcp_socket_handle_t*)userdata;
context_lua_t* lctx = context_lua_t::lua_get_context(root_coro);
int32_t session = socket->m_read_ref_sessions.push_blocking(root_coro);
uv_tcp_socket_handle_t* handle = (uv_tcp_socket_handle_t*)socket->m_uv_handle;
froze_head_option(handle->m_read_head_option);
if (handle->get_read_error() == UV_OK) {
if (socket->m_read_timeout_session_count == 0) {
singleton_ref(network_t).send_request(lctx->get_yielding_request());
} else {
--socket->m_read_timeout_session_count;
}
int64_t timeout = lctx->get_yielding_timeout();
if (timeout > 0) {
context_lua_t::lua_ref_timer(main_coro, session, timeout, 0, false, socket, read_timeout);
}
if (!socket->m_read_overflow_buffers.empty()) { //do read over flow wake up(whether read error occurred or not)!!!
singleton_ref(node_lua_t).context_send(lctx, lctx->get_handle(), socket->m_lua_ref, RESPONSE_TCP_READ, NL_ETCPREADOVERFLOW);
}
} else { //wake up the blocking read directly
singleton_ref(node_lua_t).context_send(lctx, lctx->get_handle(), socket->m_lua_ref, RESPONSE_TCP_READ, NL_ETCPREADOVERFLOW);
}
}
return UV_OK;
}
int32_t lua_tcp_socket_handle_t::read_timeout(lua_State *L, int32_t session, void* userdata, bool is_repeat)
{
lua_tcp_socket_handle_t* socket = (lua_tcp_socket_handle_t*)userdata;
context_lua_t* lctx = context_lua_t::lua_get_context(L);
message_t message(0, session, RESPONSE_TCP_READ, NL_ETIMEOUT);
if (socket->m_read_ref_sessions.wakeup_one_fixed(lctx, message, false)) {
++socket->m_read_timeout_session_count;
return 1;
}
return 0;
}
static void opt_check_endian(lua_State* L, int32_t idx, const char* field, char *value, bool frozen)
{
lua_getfield(L, idx, field);
if (!lua_isnil(L, -1)) {
size_t len = 0;
const char* head_endian = lua_tolstring(L, -1, &len);
if (len != 1 || (*head_endian != 'L' && *head_endian != 'B')) {
luaL_error(L, "option table error, field '%s' not correct", field);
}
if (frozen) {
luaL_error(L, "field '%s' set failed, option table already frozen", field);
}
*value = *head_endian;
}
lua_pop(L, 1);
}
static void opt_check_bytes(lua_State* L, int32_t idx, const char* field, uint8_t* value, bool frozen)
{
lua_getfield(L, idx, field);
if (!lua_isnil(L, -1)) {
int32_t isnum = 0;
uint32_t bytes = lua_tounsignedx(L, -1, &isnum);
if (!isnum || (bytes != 0 && bytes != 1 && bytes != 2 && bytes != 4)) { /* head byte width: 0, 1, 2, or 4. */
luaL_error(L, "option table error, field '%s' not correct", field);
}
if (frozen) {
luaL_error(L, "field '%s' set failed, option table already frozen", field);
}
*value = bytes;
}
lua_pop(L, 1);
}
static void opt_check_max(lua_State* L, int32_t idx, const char* field, uint32_t* value, bool frozen)
{
lua_getfield(L, idx, field);
if (!lua_isnil(L, -1)) {
int32_t isnum = 0;
uint32_t max = lua_tounsignedx(L, -1, &isnum);
if (!isnum) {
luaL_error(L, "option table error, field '%s' not correct", field);
}
if (frozen) {
luaL_error(L, "field '%s' set failed, option table already frozen", field);
}
*value = max;
}
lua_pop(L, 1);
}
static void opt_check_bytes_max(lua_State* L, const char* bytes_field, uint8_t* bytes, const char* max_field, uint32_t* max)
{
uint32_t bytes_max = ((uint64_t)1 << (*bytes << 3)) - 1;
if (bytes_max > MAX_BUFFER_CAPACITY) {
bytes_max = MAX_BUFFER_CAPACITY;
}
if (*max > bytes_max) {
luaL_error(L, "option table error, field '%s' and '%s' not match", bytes_field, max_field);
}
if (*bytes > 0 && *max == 0) {
*max = bytes_max;
}
}
int32_t lua_tcp_socket_handle_t::set_rwopt(lua_State* L)
{
lua_tcp_socket_handle_t* socket = (lua_tcp_socket_handle_t*)luaL_checkudata(L, 1, TCP_SOCKET_METATABLE);
if (socket->is_closed()) {
return luaL_error(L, "attempt to perform on a invalid or closed socket");
}
luaL_checktype(L, 2, LUA_TTABLE);
uv_tcp_socket_handle_t* handle = (uv_tcp_socket_handle_t*)socket->m_uv_handle;
head_option_t read_option = handle->m_read_head_option;
opt_check_endian(L, 2, "read_head_endian", &read_option.endian, read_option.frozen);
opt_check_bytes(L, 2, "read_head_bytes", &read_option.bytes, read_option.frozen);
opt_check_max(L, 2, "read_head_max", &read_option.max, read_option.frozen);
opt_check_bytes_max(L, "read_head_bytes", &read_option.bytes, "read_head_max", &read_option.max);
head_option_t write_option = handle->m_write_head_option;
opt_check_endian(L, 2, "write_head_endian", &write_option.endian, write_option.frozen);
opt_check_bytes(L, 2, "write_head_bytes", &write_option.bytes, write_option.frozen);
opt_check_max(L, 2, "write_head_max", &write_option.max, write_option.frozen);
opt_check_bytes_max(L, "write_head_bytes", &write_option.bytes, "write_head_max", &write_option.max);
if (!read_option.frozen) {
handle->m_read_head_option.endian = read_option.endian;
handle->m_read_head_option.bytes = read_option.bytes;
handle->m_read_head_option.max = read_option.max;
}
if (!write_option.frozen) {
handle->m_write_head_option.endian = write_option.endian;
handle->m_write_head_option.bytes = write_option.bytes;
handle->m_write_head_option.max = write_option.max;
}
return 0;
}
int32_t lua_tcp_socket_handle_t::get_rwopt(lua_State* L)
{
lua_tcp_socket_handle_t* socket = (lua_tcp_socket_handle_t*)luaL_checkudata(L, 1, TCP_SOCKET_METATABLE);
lua_createtable(L, 0, 8);
if (!socket->is_closed()) {
uv_tcp_socket_handle_t* handle = (uv_tcp_socket_handle_t*)socket->m_uv_handle;
lua_pushlstring(L, &handle->m_read_head_option.endian, 1);
lua_setfield(L, -2, "read_head_endian");
lua_pushinteger(L, handle->m_read_head_option.bytes);
lua_setfield(L, -2, "read_head_bytes");
lua_pushinteger(L, handle->m_read_head_option.max);
lua_setfield(L, -2, "read_head_max");
lua_pushlstring(L, &handle->m_write_head_option.endian, 1);
lua_setfield(L, -2, "write_head_endian");
lua_pushinteger(L, handle->m_write_head_option.bytes);
lua_setfield(L, -2, "write_head_bytes");
lua_pushinteger(L, handle->m_write_head_option.max);
lua_setfield(L, -2, "write_head_max");
}
return 1;
}
int32_t lua_tcp_socket_handle_t::set_nodelay(lua_State* L)
{
lua_tcp_socket_handle_t* socket = (lua_tcp_socket_handle_t*)luaL_checkudata(L, 1, TCP_SOCKET_METATABLE);
if (!socket->is_closed() && socket->get_uv_handle_type() == UV_TCP) {
socket->set_option(OPT_TCP_NODELAY, lua_toboolean(L, 2) ? "\x01\0" : "\x00\0", 2);
}
return 0;
}
int32_t lua_tcp_socket_handle_t::set_wshared(lua_State* L)
{
lua_tcp_socket_handle_t* socket = (lua_tcp_socket_handle_t*)luaL_checkudata(L, 1, TCP_SOCKET_METATABLE);
if (!socket->is_closed()) {
bool enable = lua_toboolean(L, 2);
socket->set_option(OPT_TCP_WSHARED, enable ? "\x01\0" : "\x00\0", 2);
if (enable) {
uv_tcp_socket_handle_t* handle = (uv_tcp_socket_handle_t*)socket->m_uv_handle;
froze_head_option(handle->m_write_head_option);
}
}
return 0;
}
static lua_tcp_socket_handle_t* check_socket_addr(lua_State* L, int32_t idx)
{
lua_tcp_socket_handle_t* socket = (lua_tcp_socket_handle_t*)luaL_checkudata(L, idx, TCP_SOCKET_METATABLE);
if (socket->is_closed()) {
luaL_error(L, "attempt to perform on a invalid or closed socket");
}
if (socket->get_uv_handle_type() == UV_NAMED_PIPE) {
#if defined CC_MSVC
luaL_error(L, "attempt to perform on a named pipe");
#else
luaL_error(L, "attempt to perform on a unix domain socket");
#endif
}
return socket;
}
int32_t lua_tcp_socket_handle_t::get_local_addr(lua_State* L)
{
lua_tcp_socket_handle_t* socket = check_socket_addr(L, 1);
uv_os_sock_t sock = ((uv_tcp_socket_handle_t*)socket->m_uv_handle)->m_tcp_sock;
char host[512] = { '\0' };
bool ipv6 = false;
if (socket_host(sock, true, host, sizeof(host), &ipv6, NULL)) {
lua_pushstring(L, host);
lua_pushboolean(L, ipv6);
} else {
lua_pushstring(L, "unknown address");
lua_pushboolean(L, ipv6);
}
return 2;
}
int32_t lua_tcp_socket_handle_t::get_remote_addr(lua_State* L)
{
lua_tcp_socket_handle_t* socket = check_socket_addr(L, 1);
uv_os_sock_t sock = ((uv_tcp_socket_handle_t*)socket->m_uv_handle)->m_tcp_sock;
char host[512] = { '\0' };
bool ipv6 = false;
if (socket_host(sock, false, host, sizeof(host), &ipv6, NULL)) {
lua_pushstring(L, host);
} else {
lua_pushstring(L, "unknown address");
}
return 1;
}
int32_t lua_tcp_socket_handle_t::get_local_port(lua_State* L)
{
lua_tcp_socket_handle_t* socket = check_socket_addr(L, 1);
uv_os_sock_t sock = ((uv_tcp_socket_handle_t*)socket->m_uv_handle)->m_tcp_sock;
uint16_t port;
if (socket_host(sock, true, NULL, 0, NULL, &port)) {
lua_pushinteger(L, port);
} else {
lua_pushinteger(L, -1);
}