TTServer/cpp/src/msg_server/HttpConn.cpp at master · codeindeep/TTServer · GitHub

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* HttpConn.cpp

* Created on: 2013-9-29

* Author: ziteng@mogujie.com

#include "HttpParserWrapper.h"

#include "HttpConn.h"

#include "HttpQuery.h"

static HttpConnMap_t g_http_conn_map;

// conn_handle 从0开始递增，可以防止因socket handle重用引起的一些冲突

static uint32_t g_conn_handle_generator = 0;

CHttpConn* FindHttpConnByHandle(uint32_t conn_handle)

{

CHttpConn* pConn = NULL;

HttpConnMap_t::iterator it = g_http_conn_map.find(conn_handle);

if (it != g_http_conn_map.end()) {

pConn = it->second;

}

return pConn;

}

void httpconn_callback(void* callback_data, uint8_t msg, uint32_t handle, uint32_t uParam, void* pParam)

{

NOTUSED_ARG(uParam);

NOTUSED_ARG(pParam);

// convert void* to uint32_t, oops

uint32_t conn_handle = *((uint32_t*)(&callback_data));

CHttpConn* pConn = FindHttpConnByHandle(conn_handle);

if (!pConn) {

return;

}

switch (msg)

{

case NETLIB_MSG_READ:

pConn->OnRead();

break;

case NETLIB_MSG_WRITE:

pConn->OnWrite();

break;

case NETLIB_MSG_CLOSE:

pConn->OnClose();

break;

default:

log("!!!httpconn_callback error msg: %d\n", msg);

break;

}

void http_conn_timer_callback(void* callback_data, uint8_t msg, uint32_t handle, void* pParam)

{

CHttpConn* pConn = NULL;

HttpConnMap_t::iterator it, it_old;

uint64_t cur_time = get_tick_count();

for (it = g_http_conn_map.begin(); it != g_http_conn_map.end(); ) {

it_old = it;

it++;

pConn = it_old->second;

pConn->OnTimer(cur_time);

}

void init_http_conn()

{

netlib_register_timer(http_conn_timer_callback, NULL, 1000);

}

//////////////////////////

CHttpConn::CHttpConn()

{

m_busy = false;

m_sock_handle = NETLIB_INVALID_HANDLE;

m_state = CONN_STATE_IDLE;

m_last_send_tick = m_last_recv_tick = get_tick_count();

m_conn_handle = ++g_conn_handle_generator;

if (m_conn_handle == 0) {

m_conn_handle = ++g_conn_handle_generator;

}

//log("CHttpConn, handle=%u\n", m_conn_handle);

}

CHttpConn::~CHttpConn()

{

//log("~CHttpConn, handle=%u\n", m_conn_handle);

}

int CHttpConn::Send(void* data, int len)

{

m_last_send_tick = get_tick_count();

if (m_busy)

{

m_out_buf.Write(data, len);

return len;

}

int ret = netlib_send(m_sock_handle, data, len);

if (ret < 0)

ret = 0;

if (ret < len)

{

m_out_buf.Write((char*)data + ret, len - ret);

m_busy = true;

//log("not send all, remain=%d\n", m_out_buf.GetWriteOffset());

}

return len;

}

void CHttpConn::Close()

{

m_state = CONN_STATE_CLOSED;

g_http_conn_map.erase(m_conn_handle);

netlib_close(m_sock_handle);

ReleaseRef();

}

void CHttpConn::OnConnect(net_handle_t handle)

{

//printf("OnConnect, handle=%d\n", handle);

m_sock_handle = handle;

m_state = CONN_STATE_CONNECTED;

g_http_conn_map.insert(make_pair(m_conn_handle, this));

netlib_option(handle, NETLIB_OPT_SET_CALLBACK, (void*)httpconn_callback);

netlib_option(handle, NETLIB_OPT_SET_CALLBACK_DATA, reinterpret_cast<void *>(m_conn_handle) );

netlib_option(handle, NETLIB_OPT_GET_REMOTE_IP, (void*)&m_peer_ip);

}

void CHttpConn::OnRead()

{

for (;;)

{

uint32_t free_buf_len = m_in_buf.GetAllocSize() - m_in_buf.GetWriteOffset();

if (free_buf_len < READ_BUF_SIZE + 1)

m_in_buf.Extend(READ_BUF_SIZE + 1);

int ret = netlib_recv(m_sock_handle, m_in_buf.GetBuffer() + m_in_buf.GetWriteOffset(), READ_BUF_SIZE);

if (ret <= 0)

break;

m_in_buf.IncWriteOffset(ret);

m_last_recv_tick = get_tick_count();

}

// 每次请求对应一个HTTP连接，所以读完数据后，不用在同一个连接里面准备读取下个请求

char* in_buf = (char*)m_in_buf.GetBuffer();

uint32_t buf_len = m_in_buf.GetWriteOffset();

in_buf[buf_len] = '\0';

//log("OnRead, buf_len=%u, conn_handle=%u\n", buf_len, m_conn_handle); // for debug

CHttpParserWrapper* pHttpParser = CHttpParserWrapper::GetInstance();

pHttpParser->ParseHttpContent(in_buf, buf_len);

if (pHttpParser->IsReadAll()) {

string url = pHttpParser->GetUrl();

if (strncmp(url.c_str(), "/query/", 7) == 0) {

string content = pHttpParser->GetBodyContent();

CHttpQuery* pQueryInstance = CHttpQuery::GetInstance();

pQueryInstance->DispatchQuery(url, content, this);

} else {

log("url unknown, url=%s\n", url.c_str());

Close();

}

void CHttpConn::OnWrite()

{

if (!m_busy)

return;

int ret = netlib_send(m_sock_handle, m_out_buf.GetBuffer(), m_out_buf.GetWriteOffset());

if (ret < 0)

ret = 0;

int out_buf_size = (int)m_out_buf.GetWriteOffset();

m_out_buf.Read(NULL, ret);

if (ret < out_buf_size)

{

m_busy = true;

log("not send all, remain=%d\n", m_out_buf.GetWriteOffset());

}

else

{

m_busy = false;

}

void CHttpConn::OnClose()

{

Close();

}

void CHttpConn::OnTimer(uint64_t curr_tick)

{

if (curr_tick > m_last_recv_tick + HTTP_CONN_TIMEOUT) {

log("HttpConn timeout, handle=%d\n", m_conn_handle);

Close();

}

TTServer/cpp/src/msg_server/HttpConn.cpp at master · codeindeep/TTServer · GitHub

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