From 80aaa6049be55bbe3e112e1f4c7554d1b17f6d41 Mon Sep 17 00:00:00 2001
From: chenshijun <csj_sky@126.com>
Date: 星期一, 15 四月 2019 17:16:32 +0800
Subject: [PATCH] 增加一些注释
---
syncDBTool/ErlangDbTool.cpp | 52 ++++++++++++++++++++++++++++------------------------
1 files changed, 28 insertions(+), 24 deletions(-)
diff --git a/syncDBTool/ErlangDbTool.cpp b/syncDBTool/ErlangDbTool.cpp
index b3cdeea..b42a94b 100755
--- a/syncDBTool/ErlangDbTool.cpp
+++ b/syncDBTool/ErlangDbTool.cpp
@@ -71,6 +71,7 @@
return true;
}
+// 妫�娴嬭繑鍥炵殑鏁版嵁鐨勬暟鎹被鍨�
static int ErlangTool::checkETERMType(ETERM *elemen) {
if (elemen == NULL) {
return -1;
@@ -187,9 +188,9 @@
g_syncDbFile.setDatabaseName(str_SyncDbFile.c_str());
g_syncDbFile.open();
+ // c erlang init
erl_init(NULL, 0);
struct in_addr addr;
- //#todo
addr.s_addr = inet_addr("127.0.0.1");
m_pName.append(std::to_string((int) getpid()));
@@ -198,6 +199,8 @@
t_cNodeName.append("@127.0.0.1");
m_cNodeName.swap(t_cNodeName);
//m_pName
+ //int erl_connect_init(number, cookie, creation)int erl_connect_xinit(host, alive, node, addr, cookie, creation)
+ // https://cloud.tencent.com/developer/section/1123179
if (erl_connect_xinit(const_cast<char *>(m_pName.c_str()), const_cast<char *>(m_pName.c_str()),
const_cast<char *>(m_cNodeName.c_str()), &addr,
const_cast<char *>(m_cookie.c_str()), 0) == -1) {
@@ -214,15 +217,18 @@
ERR("m_nodeName is null ");
return 3;
}
+ // 鍒ゆ柇鑺傜偣鏄惁鍚姩
m_ret = pingNode(m_nodeName, m_cookie);
if (!m_ret) {
if (dir_file_exists(m_path, true)) {
+ // 鍚姩erlang鑺傜偣鐨刡ash鍛戒护
std::string cmd = std::string("cd " + m_path + " && erl -name " + m_nodeName + " -setcookie "
+ m_cookie + " -mnesia dir '\"" + m_path +
"\"' -detached -noshell");// >>log
std::cout << cmd << std::endl;
system(cmd.c_str());
std::cout << m_ret << std::endl;
+ // 鍒ゆ柇鑺傜偣鏄惁鍚姩鎴愬姛
m_ret = waitNode();
resetConn();
return m_ret;
@@ -264,7 +270,7 @@
}
ErlMessage emsg; /* Incoming message */
- //hanshu canshu
+ // 鎷兼帴鍑芥暟鍙傛暟
ETERM *arrlist[5];
arrlist[0] = erl_mk_atom(m_nodeName.c_str());
arrlist[1] = erl_mk_atom(FatherNodeName.c_str());
@@ -282,6 +288,8 @@
//erl_close_connection(m_fd);
// m_mutex.unlock();
if (ret == ERL_MSG) {
+ // 娑堟伅瑙ｆ瀽
+ // 娑堟伅浣撲负閾捐〃缁撴瀯
std::map<std::string, std::string> t_results;
ETERM *key, *value;
ETERM *tuplep[6];
@@ -313,7 +321,7 @@
INFO("item is " << item.first << " " << item.second);
}
}
- }//ret == ERL_MSG end
+ } //ret == ERL_MSG end
else {
ERR(" ret is " << ret);
@@ -329,18 +337,14 @@
// m_mutex.lock();
m_ret = resetConn();
if (!m_ret) {
- //#todo error message
- std::cout << __FILE__ << __FUNCTION__ << __LINE__ << " error " << m_ret << " " << m_fd << std::endl;
+ ERR(" error " << m_ret << " " << m_fd);
return false;
}
int ret = -1;
ErlMessage emsg; /* Incoming message */
- //hanshu canshu
-// ETERM *arrlist[1];
-// arrlist[0] = erl_mk_atom(m_nodeName.c_str());
+
ETERM *list = erl_mk_empty_list();// (arrlist, 0);
-// std::cout << __FILE__ << __FUNCTION__ <<__LINE__ << " " << m_fd << std::endl;
ret = erl_rpc_to(m_fd, "syncDB", "removeNode", list);
if (ret == ERL_TICK) {
ret = erl_rpc_from(m_fd, TIMEOUT, &emsg);
@@ -364,7 +368,7 @@
break;
}
default:
- printf("error add case todo \n\r");
+ ERR("error add case todo \n\r");
}
auto it = t_results.find("atomic");
if (t_results.size() > 0 && t_results.end() != it && it->second == "ok") {
@@ -471,9 +475,7 @@
map_DevDataCache devDataCache;
int ret = -1;
ErlMessage emsg; /* Incoming message */
- //hanshu canshu
-// ETERM *arrlist[0];
-// arrlist[0] = erl_mk_atom(m_nodeName.c_str());
+
ETERM *list = erl_mk_empty_list();//erl_mk_list(arrlist, 0);
ret = erl_rpc_to(m_fd, "syncDB", "findAllNode", list);
@@ -534,7 +536,7 @@
erlangFreeEterm(3, key, value, tuplep[j]);
}
// printf("\none list end\n\n\n\n");
- // #todo this is have a bug
+ // #todo this is have a bug 鍐呭瓨娉勯湶?鎴栬�呭湴鍧�绌洪棿瓒婄晫?
// device_info.create_by = "";
devDataCache.insert(std::make_pair(device_info.uuid, device_info));
erlangFreeEterm(1, tail_tuple);
@@ -1619,6 +1621,7 @@
"Select a.uuid as id ,a.faceUrl as img,a.feature,b.idCard as idcard,b.enabled,b.monitorLevel from '" +
str_tableUuid +
"_fea' as a ,'" + str_tableUuid + "' as b where a.uuid = b.uuid and ( a.del_flag=0 AND b.del_flag=0);");
+ //Select a.uuid as id ,a.faceUrl as img,a.feature,b.idCard as idcard,b.enabled,b.monitorLevel from '0cd82a8b-5285-5737-ab19-8c07247c797e_fea' as a ,'0cd82a8b-5285-5737-ab19-8c07247c797e' as b where a.uuid = b.uuid and ( a.del_flag=0 AND b.del_flag=0);
QSqlQuery query(g_syncDbFile);
query.prepare(sql);
if (!query.exec()) {
@@ -1686,13 +1689,14 @@
bool ErlangTool::ErlangDbTool::resetConn() {
//#todo
if (m_pName.size() <= 0) {
+ // 鏍规嵁褰撳墠鏃堕棿璁剧疆绉嶅瓙,绉掔骇
srand(time(0));
+ // 鐢熸垚闅忔満鏁�
m_loop = rand() % 1000;
int ret = -1;
erl_init(NULL, 0);
-// m_loop %= 10;
-// m_loop++;
+ // 鏍规嵁闅忔満鏁扮敓鎴恈鑺傜偣
ret = erl_connect_init(m_loop, const_cast<char *>(m_cookie.c_str()), 0);
DBG("node name is " << m_loop);
if (-1 == ret) {
@@ -1700,26 +1704,22 @@
return false;
}
-// std::cout << __FILE__ << __FUNCTION__ <<__LINE__ << " " << m_fd << std::endl;
+ // 鍏抽棴涓婃閾炬帴鐨勬枃浠舵弿杩扮 #TODO 绗竴娆″垱寤鸿妭鐐规湁姒傜巼鍑虹幇鐭椂闂村唴鏃犳硶鏌ヨ鐨刡ug
erl_close_connection(m_fd);
-// std::cout << __FILE__ << __FUNCTION__ <<__LINE__ << " " << m_fd << std::endl;
m_fd = erl_connect(const_cast<char *>(m_nodeName.c_str()));
-// std::cout << __FILE__ << __FUNCTION__ <<__LINE__ << " " << m_fd << std::endl;
if (0 > m_fd) {
// erl_err_quit("erl_connect");
return false;
}
return true;
} else {
+ // 璁剧疆浜� mPName
erl_close_connection(m_fd);
m_fd = erl_connect(const_cast<char *>(m_nodeName.c_str()));
if (0 > m_fd) {
-// erl_err_quit("erl_connect");
-// std::cout << __FILE__ << __FUNCTION__ <<__LINE__ << " error " << fd << std::endl;
ERR("m_fd is " << m_fd << " m_nodeName is" << m_nodeName);
return false;
}
-// std::cout << __FILE__ << __FUNCTION__ <<__LINE__ << " " << fd << std::endl;
INFO("m_fd is " << m_fd << " m_nodeName is" << m_nodeName);
return true;
}
@@ -1738,15 +1738,17 @@
loop++;
}
}
- std::cout << "start waitNode" << std::endl;
+ INFO("start waitNode");
return m_ret;
}
void ErlangTool::ErlangDbTool::test(pthread_cond_t *t_pthcon, pthread_mutex_t *t_pthmut) {
bool ret = setCNodeName();
{
+ // 鐩戝惉socket鐨勭嚎绋�
std::thread th1([&] {
int res;
+ // 澶栭儴浼犲叆鐨勪俊鍙峰拰閿�
pthread_cond_t *t_pthCon = t_pthcon;
pthread_mutex_t *t_pthMut = t_pthmut;
@@ -1786,7 +1788,8 @@
} else if (got == ERL_ERROR) {
if ((fd = erl_accept(listen, &conn)) == ERL_ERROR)
erl_err_quit("erl_accept");
- INFO("Connected to " << conn.nodename);
+ else
+ INFO("Connected to " << conn.nodename);
} else {
if (emsg.type == ERL_REG_SEND) {
@@ -1803,6 +1806,7 @@
pthread_cond_signal(t_pthCon);
pthread_mutex_unlock(t_pthMut);
//call back func
+ //#TODO 娑堟伅瑙ｆ瀽
} else {
ERR("message not is update");
}
--
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