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Copy pathuv_udp_handle.cpp
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Copy pathuv_udp_handle.cpp
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168 lines (157 loc) · 5.81 KB
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#include "message.h"
#include "network.h"
#include "node_lua.h"
#include "uv_udp_handle.h"
#if defined (CC_MSVC)
#define uv_udp_fd(handle) ((handle)->socket)
#else
#define uv_udp_fd(handle) ((handle)->io_watcher.fd)
#endif
uv_udp_handle_t::~uv_udp_handle_t()
{
clear_write_cached_requests();
singleton_ref(network_t).pop_shared_write_socket(SOCKET_MAKE_FD(m_lua_ref, m_source));
}
void uv_udp_handle_t::open(request_udp_open_t& request)
{
uv_udp_t* server = (uv_udp_t*)m_handle;
if ((!request.m_ipv6 ? uv_udp_bind(server, uv_ip4_addr(REQUEST_SPARE_PTR(request), request.m_port), 0) == 0 : uv_udp_bind6(server, uv_ip6_addr(REQUEST_SPARE_PTR(request), request.m_port), 0) == 0)) {
m_udp_sock = uv_udp_fd((uv_udp_t*)server);
if (!singleton_ref(node_lua_t).context_send(request.m_source, 0, request.m_session, RESPONSE_UDP_OPEN, (void*)this)) {
uv_close((uv_handle_t*)server, on_closed);
}
} else {
singleton_ref(node_lua_t).context_send(request.m_source, 0, request.m_session, RESPONSE_UDP_OPEN, singleton_ref(network_t).last_error());
uv_close((uv_handle_t*)server, on_closed);
}
}
uv_buf_t uv_udp_handle_t::on_read_alloc(uv_handle_t* handle, size_t suggested_size)
{
return singleton_ref(network_t).make_shared_read_buffer();
}
void uv_udp_handle_t::on_read(uv_udp_t* handle, ssize_t nread, uv_buf_t buf, struct sockaddr* addr, unsigned flags)
{
/* udp max datagram read pack size: SHARED_READ_BUFFER_SIZE(64 * 1024) */
if (nread == 0) {
return;
}
uv_udp_handle_t* udp_handle = (uv_udp_handle_t*)(handle->data);
if (nread == -1) {
singleton_ref(node_lua_t).context_send(udp_handle->m_source, 0, udp_handle->m_lua_ref, RESPONSE_UDP_READ, singleton_ref(network_t).last_error());
return;
}
buffer_t buffer = buffer_new(nread, buf.base, nread);
char* host = (char*)nl_malloc(64);
uint16_t port = 0;
bool ipv6 = false;
*host = '\0';
sockaddr_host(addr, host, 64, &ipv6, &port);
message_array_t* array = message_array_create(4);
array->m_array[0] = message_t(0, udp_handle->m_lua_ref, RESPONSE_UDP_READ, buffer);
array->m_array[1] = message_t(0, udp_handle->m_lua_ref, RESPONSE_UDP_READ, host);
array->m_array[2] = message_t(0, udp_handle->m_lua_ref, RESPONSE_UDP_READ, (int64_t)port);
array->m_array[3] = message_t(0, udp_handle->m_lua_ref, RESPONSE_UDP_READ, ipv6);
singleton_ref(node_lua_t).context_send_array_release(udp_handle->m_source, 0, udp_handle->m_lua_ref, RESPONSE_UDP_READ, array);
}
void uv_udp_handle_t::read(request_udp_read_t& request)
{
if (!m_read_started) {
if (uv_udp_recv_start((uv_udp_t*)m_handle, on_read_alloc, on_read) != 0) {
singleton_ref(node_lua_t).context_send(m_source, 0, m_lua_ref, RESPONSE_UDP_READ, singleton_ref(network_t).last_error());
return;
}
m_read_started = true;
}
}
void uv_udp_handle_t::on_write(uv_udp_send_t* req, int status)
{
write_uv_request_t *uv_request = (write_uv_request_t*)req->data;
uv_udp_handle_t *socket_handle = (uv_udp_handle_t*)(req->handle->data);
if (uv_request->m_length > 0) {
nl_free((void*)uv_request->m_string);
} else {
buffer_release(uv_request->m_buffer);
}
if (uv_request->m_session != LUA_REFNIL) {
singleton_ref(node_lua_t).context_send(uv_request->m_source, 0, uv_request->m_session, RESPONSE_UDP_WRITE, status == 0 ? UV_OK : singleton_ref(network_t).last_error());
}
socket_handle->put_write_cached_request(uv_request);
}
void uv_udp_handle_t::write(request_udp_write_t& request)
{
int32_t err = UV_UNKNOWN;
if (request.m_shared_write) {
uv_udp_handle_t* handle = (uv_udp_handle_t*)singleton_ref(network_t).get_shared_write_socket(request.m_socket_fd);
if (handle != NULL) {
uint32_t length = request.m_length > 0 ? request.m_length : (uint32_t)buffer_data_length(request.m_buffer);
if (uv_is_closing((uv_handle_t*)handle)) {
err = NL_EUDPSCLOSED;
} else {
err = handle->write_handle(request);
}
} else {
err = NL_EUDPNOWSHARED;
}
} else {
err = request.m_socket_handle->write_handle(request);
}
if (err != UV_OK) { /* write error had been occurred */
if (request.m_length > 0) {
nl_free((void*)request.m_string);
} else {
buffer_release(request.m_buffer);
}
if (request.m_session != LUA_REFNIL) {
singleton_ref(node_lua_t).context_send(request.m_source, 0, request.m_session, RESPONSE_UDP_WRITE, (nl_err_code)err);
}
}
}
int32_t uv_udp_handle_t::write_handle(request_udp_write_t& request)
{
int result;
uv_buf_t uv_buf;
write_uv_request_t* uv_request = get_write_cached_request();
uv_request->m_source = request.m_source;
uv_request->m_session = request.m_session;
uv_request->m_length = request.m_length;
if (request.m_length > 0) {
uv_request->m_string = request.m_string;
uv_buf.len = request.m_length;
uv_buf.base = (char*)request.m_string;
} else {
uv_request->m_buffer = request.m_buffer;
uv_buf.len = buffer_data_length(request.m_buffer);
uv_buf.base = buffer_data_ptr(request.m_buffer);
}
if (!request.m_ipv6) {
result = uv_udp_send(&uv_request->m_write_req, (uv_udp_t*)m_handle, &uv_buf, 1, uv_ip4_addr(REQUEST_SPARE_PTR(request), request.m_port), on_write);
} else {
result = uv_udp_send6(&uv_request->m_write_req, (uv_udp_t*)m_handle, &uv_buf, 1, uv_ip6_addr(REQUEST_SPARE_PTR(request), request.m_port), on_write);
}
if (result == 0) return UV_OK;
put_write_cached_request(uv_request);
return singleton_ref(network_t).last_error(); /* write error occurs */
}
void uv_udp_handle_t::set_option(uint8_t type, const char *option)
{
udp_option_type opt_type = (udp_option_type)type;
switch (opt_type)
{
case OPT_UDP_WSHARED:
set_udp_wshared(*option);
break;
default:
break;
}
}
void uv_udp_handle_t::set_udp_wshared(bool enable)
{
if (!uv_is_closing((uv_handle_t*)(m_handle))) {
int64_t fd = SOCKET_MAKE_FD(m_lua_ref, m_source);
if (enable) {
singleton_ref(network_t).put_shared_write_socket(fd, this);
} else {
singleton_ref(network_t).pop_shared_write_socket(fd);
}
}
}