From 1ff714838c03cba1a18884d5b48a20ee6c4275ac Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期五, 21 五月 2021 15:00:53 +0800
Subject: [PATCH] class MsgI, ShmMsgQueue, no bind to shm.
---
src/defs.cpp | 52 +++++++++++++++++++++++++++++++++++-----------------
1 files changed, 35 insertions(+), 17 deletions(-)
diff --git a/src/defs.cpp b/src/defs.cpp
index 2715911..a2f05cc 100644
--- a/src/defs.cpp
+++ b/src/defs.cpp
@@ -90,7 +90,7 @@
} // namespace
-CenterInfo *GetCenterInfo(bhome_shm::SharedMemory &shm)
+CenterInfo *GetCenterInfo(SharedMemory &shm)
{
auto pmeta = Ptr<CenterMetaInfo>(kCenterInfoFixedAddress + Addr(shm.get_address()));
if (pmeta->tag_ == kCenterInfoTag) {
@@ -98,11 +98,33 @@
}
return nullptr;
}
+ShmSocket &DefaultSender(SharedMemory &shm)
+{
+ typedef std::pair<void *, std::shared_ptr<ShmSocket>> Pair;
+ static std::vector<Pair> store;
+ static std::mutex s_mtx;
+ thread_local Pair local_cache;
+ if (local_cache.first == &shm) {
+ return *local_cache.second;
+ }
+
+ std::lock_guard<std::mutex> lk(s_mtx);
+ for (auto &kv : store) {
+ if (kv.first == &shm) {
+ local_cache = kv;
+ return *local_cache.second;
+ }
+ }
+ auto &mq = GetCenterInfo(shm)->mq_sender_;
+ store.emplace_back(&shm, new ShmSocket(mq.offset_, shm, mq.id_));
+ local_cache = store.back();
+ return *local_cache.second;
+}
// put center info at fixed memory position.
// as boost shm find object (find socket/mq by id, etc...) also locks inside,
// which node might crash inside and cause deadlock.
-bool CenterInit(bhome_shm::SharedMemory &shm)
+bool CenterInit(SharedMemory &shm)
{
Mutex *mutex = shm.FindOrCreate<Mutex>("shm_center_lock");
if (!mutex || !mutex->try_lock()) {
@@ -140,16 +162,15 @@
return false;
}
-const MQInfo &BHGlobalSenderAddress() { return GetCenterInfo(BHomeShm())->mq_sender_; }
-const MQInfo &BHTopicCenterAddress() { return GetCenterInfo(BHomeShm())->mq_center_; }
-const MQInfo &BHTopicBusAddress() { return GetCenterInfo(BHomeShm())->mq_bus_; }
-bool BHNodeInit(const int64_t request, int64_t &reply)
+const MQInfo &BHTopicCenterAddress(SharedMemory &shm) { return GetCenterInfo(shm)->mq_center_; }
+const MQInfo &BHTopicBusAddress(SharedMemory &shm) { return GetCenterInfo(shm)->mq_bus_; }
+bool BHNodeInit(SharedMemory &shm, const int64_t request, int64_t &reply)
{
- return GetCenterInfo(BHomeShm())->init_rr_.ClientRequest(request, reply);
+ return GetCenterInfo(shm)->init_rr_.ClientRequest(request, reply);
}
-void BHCenterHandleInit(std::function<int64_t(const int64_t)> const &onReq)
+void BHCenterHandleInit(SharedMemory &shm, std::function<int64_t(const int64_t)> const &onReq)
{
- GetCenterInfo(BHomeShm())->init_rr_.ServerProcess(onReq);
+ GetCenterInfo(shm)->init_rr_.ServerProcess(onReq);
}
int64_t CalcAllocIndex(int64_t size)
@@ -164,18 +185,15 @@
{
return "bhome_default_shm_v0";
}
-bhome_shm::SharedMemory &BHomeShm()
+SharedMemory &BHomeShm()
{
- static bhome_shm::SharedMemory shm(BHomeShmName(), 1024 * 1024 * 512);
+ static SharedMemory shm(BHomeShmName(), 1024 * 1024 * 512);
return shm;
}
-bool GlobalInit(bhome_shm::SharedMemory &shm)
-{
- MsgI::BindShm(shm);
- CenterInfo *pinfo = GetCenterInfo(shm);
- return pinfo && ShmMsgQueue::SetData(pinfo->mqid_);
-}
+bool GlobalInit(SharedMemory &shm) { return GetCenterInfo(shm); }
+
+MQId NewSession() { return 10 * (++GetCenterInfo(BHomeShm())->mqid_); }
void SetLastError(const int ec, const std::string &msg)
{
--
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