uint64_t S1mmeSession::UpdateUserDataSTMSIChange(S1APNode* p_node, uint64_t stmsi) { if(!stmsi) return 0; uint64_t old_stmsi = 0; //如果stmsi没有改变, 则直接返回 SPUserInfo& sp_local_user_info = p_node->GetUserInfo(); if (sp_local_user_info->HasSTMSI() && sp_local_user_info->GetSTMSI() == stmsi) { return old_stmsi; } //删除 old stmsi if (sp_local_user_info->HasSTMSI()) { old_stmsi = sp_local_user_info->GetSTMSI(); STMSI_Iter iter = ue_stmsi_map_.find(old_stmsi); if (iter != ue_stmsi_map_.end()) { ue_stmsi_map_.erase(iter); } DeleteFromStmsiTimeoutMap(old_stmsi); } //删除可能的 paging 干扰 StmsiWithMmegi_T old_stmsi_key(old_stmsi); S1APNode** pp_paging = p_stmsi_paging_map_->GetData(old_stmsi_key); if (pp_paging != NULL) { if (handle_session_version_ == S1MME_SESSION_VERSION_CHINA_TELECOM) { CtOutputNode(*pp_paging, false); } else { (*pp_paging)->DeletePagingKqi(); } p_stmsi_paging_map_->DeleteData(old_stmsi_key, p_s1ap_node_allocator_); } StmsiWithMmegi_T new_stmsi_key(stmsi); pp_paging = p_stmsi_paging_map_->GetData(new_stmsi_key); if (pp_paging != NULL) { if(handle_session_version_ == S1MME_SESSION_VERSION_CHINA_TELECOM) { CtOutputNode(*pp_paging, false); } else { (*pp_paging)->DeletePagingKqi(); } p_stmsi_paging_map_->DeleteData(new_stmsi_key, p_s1ap_node_allocator_); } //删除可能的 new_stmsi 干扰 STMSI_Iter iter = ue_stmsi_map_.find(stmsi); if (iter != ue_stmsi_map_.end()) { iter->second->flag_.stmsi = false; iter->second->index_.stmsi =0; ue_stmsi_map_.erase(iter); } UpdateFromStmsiTimeoutMap(stmsi, current_time_.tv_sec, true); //插入 new_stmsi(local user info) ue_stmsi_map_.insert(std::make_pair(stmsi, sp_local_user_info)); sp_local_user_info->SetSTMSI(stmsi); return old_stmsi; }什么意思
时间: 2024-04-01 19:32:48 浏览: 133
这段代码是一个 C++ 函数,用于在 S1mmeSession 中更新用户数据的 STMSI 字段。STMSI 是一个标识用户的短期移动子系统标识,如果 STMSI 发生改变,则需要更新用户的信息。函数接受两个参数,一个是 S1APNode 指针,一个是 uint64_t 类型的新 STMSI 值。函数首先检查新 STMSI 是否为 0,如果是则直接返回。然后检查新 STMSI 是否与原来的 STMSI 相同,如果相同则也直接返回。如果新 STMSI 不同于原来的 STMSI,则需要进行一系列删除和插入操作,以更新用户信息。其中包括删除旧的 STMSI 并从超时映射表中删除,删除可能的 paging 干扰,删除可能的新 STMSI 干扰,更新超时映射表并插入新的 STMSI。最后函数返回旧的 STMSI 值。
相关问题
void S1mmeSession::UpdateUserDataIMSI(S1APNode* p_node, uint64_t imsi) { SPUserInfo& sp_local_user_info = p_node->GetUserInfo(); if (0==imsi) { return; } #if 1 sp_local_user_info->SetIMSI(imsi); if (IsImsiAttach() && sp_local_user_info->HasSTMSI()) { ue_stmsi_map_.erase(StmsiWithMmegi_T(sp_local_user_info->GetSTMSI())); DeleteFromStmsiTimeoutMap(sp_local_user_info->GetSTMSI()); sp_local_user_info->flag_.stmsi = false; sp_local_user_info->index_.stmsi =0; }什么意思
这也是一段 C++ 代码,该函数用于更新用户的 IMSI 信息。具体实现是,首先从 S1AP 节点中获取本地用户信息(即当前用户信息),然后判断是否需要更新 IMSI 信息。如果 IMSI 为 0,则直接返回。如果 IMSI 不为 0,则更新本地用户信息中的 IMSI。接着,如果当前用户已经附着(即已经建立了连接),并且本地用户信息中存在 STMSI(临时标识),则需要将该 STMSI 从相应的映射表中删除,并且重置本地用户信息中相应的标志位和索引值。整个函数的作用就是更新用户的 IMSI 信息,并处理相关的逻辑。
void S1mmeSession::UpdateKqiInfo(S1APNode* p_node) { MsgCommonInfo& common = p_node->GetCommonInfo(); SPUserInfo& sp_user_info = p_node->GetUserInfo(); uint64_t imsi = sp_user_info->GetIMSI(); uint64_t imei = common.imei; uint32_t eci = common.eci == 0 ? sp_user_info->GetEci() : common.eci; uint16_t tac = common.tac; uint64_t last_time = current_time_.tv_sec; //IMSI_T imsi_key(imsi); //IMSI_Iter iter = ue_imsi_map_.find(imsi_key); //LogInfo("%d",common.imei); KqiValue& kqi_value = kqi_map_[imsi]; auto it = kqi_map_.find(imsi); if (it != kqi_map_.end()) { // 如果imsi已存在,则更新其value kqi_value.imsi = imsi; kqi_value.imei = imei; kqi_value.eci = eci; kqi_value.tac = tac; clock_gettime(CLOCK_REALTIME, &kqi_value.last_time); } LogInfo("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!!!!!!"); return; }添加代码,如果imsi不存在就正常添加
可以在`if (it != kqi_map_.end())`语句块之前添加如下代码:
```cpp
if (it == kqi_map_.end()) {
// 如果imsi不存在,则创建一个新的KqiValue对象并插入map中
KqiValue kqi_value_new;
kqi_value_new.imsi = imsi;
kqi_value_new.imei = imei;
kqi_value_new.eci = eci;
kqi_value_new.tac = tac;
clock_gettime(CLOCK_REALTIME, &kqi_value_new.last_time);
kqi_map_.insert({imsi, kqi_value_new});
return;
}
```
这样就可以在`imsi`不存在时创建一个新的`KqiValue`对象并将其插入到`kqi_map_`中。完整的函数代码如下:
```cpp
void S1mmeSession::UpdateKqiInfo(S1APNode* p_node) {
MsgCommonInfo& common = p_node->GetCommonInfo();
SPUserInfo& sp_user_info = p_node->GetUserInfo();
uint64_t imsi = sp_user_info->GetIMSI();
uint64_t imei = common.imei;
uint32_t eci = common.eci == 0 ? sp_user_info->GetEci() : common.eci;
uint16_t tac = common.tac;
uint64_t last_time = current_time_.tv_sec;
KqiValue& kqi_value = kqi_map_[imsi];
auto it = kqi_map_.find(imsi);
if (it == kqi_map_.end()) {
// 如果imsi不存在,则创建一个新的KqiValue对象并插入map中
KqiValue kqi_value_new;
kqi_value_new.imsi = imsi;
kqi_value_new.imei = imei;
kqi_value_new.eci = eci;
kqi_value_new.tac = tac;
clock_gettime(CLOCK_REALTIME, &kqi_value_new.last_time);
kqi_map_.insert({imsi, kqi_value_new});
return;
}
// 如果imsi已存在,则更新其value
kqi_value.imsi = imsi;
kqi_value.imei = imei;
kqi_value.eci = eci;
kqi_value.tac = tac;
clock_gettime(CLOCK_REALTIME, &kqi_value.last_time);
return;
}
```
阅读全文
相关推荐
















