From ab898268c8bc493ca9862b2d64f2e1e7d20e5a4c Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期三, 02 六月 2021 13:39:00 +0800
Subject: [PATCH] refactor.
---
src/defs.cpp | 121 +++++++++++++++++++++++++++++++++++++---
1 files changed, 111 insertions(+), 10 deletions(-)
diff --git a/src/defs.cpp b/src/defs.cpp
index 450349e..57df1bc 100644
--- a/src/defs.cpp
+++ b/src/defs.cpp
@@ -18,6 +18,10 @@
#include "defs.h"
#include "msg.h"
#include "shm_msg_queue.h"
+#include "shm_socket.h"
+#include <boost/uuid/random_generator.hpp>
+#include <boost/uuid/string_generator.hpp>
+#include <boost/uuid/uuid.hpp>
namespace
{
@@ -70,7 +74,104 @@
const int kAllocIndexLen = sizeof(AllocSizeIndex) / sizeof(AllocSizeIndex[0]);
static_assert(kAllocIndexLen == 256, "Make sure alloc 8 bit is enough.");
static_assert(AllocSizeIndex[255] > uint32_t(-1), "Make sure alloc size correct.");
+
+const int64_t kCenterInfoFixedAddress = 1024 * 4;
+
+const boost::uuids::uuid kCenterInfoTag = boost::uuids::string_generator()("fc5007bd-0e62-4d91-95dc-948cf1f02e5a");
+struct CenterMetaInfo {
+ boost::uuids::uuid tag_;
+ CenterInfo info_;
+};
+
+int64_t Addr(void *ptr) { return reinterpret_cast<int64_t>(ptr); }
+// void *Ptr(const int64_t offset) { return reinterpret_cast<void *>(offset); }
+template <class T = void>
+T *Ptr(const int64_t offset) { return reinterpret_cast<T *>(offset); }
+
} // namespace
+
+CenterInfo *GetCenterInfo(SharedMemory &shm)
+{
+ auto pmeta = Ptr<CenterMetaInfo>(kCenterInfoFixedAddress + Addr(shm.get_address()));
+ if (pmeta->tag_ == kCenterInfoTag) {
+ return &pmeta->info_;
+ }
+ 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(SharedMemory &shm)
+{
+ Mutex *mutex = shm.FindOrCreate<Mutex>("shm_center_lock");
+ if (!mutex || !mutex->try_lock()) {
+ return false;
+ }
+ DEFER1(mutex->unlock());
+
+ auto pmeta = Ptr<CenterMetaInfo>(kCenterInfoFixedAddress + Addr(shm.get_address()));
+ if (pmeta->tag_ == kCenterInfoTag) {
+ return true;
+ } else {
+ auto base = Addr(shm.get_address());
+ auto offset = kCenterInfoFixedAddress;
+ void *p = shm.Alloc(offset * 2);
+ if (Addr(p) - base <= offset) {
+ pmeta = new (Ptr(offset + base)) CenterMetaInfo;
+ auto &info = pmeta->info_;
+
+ auto InitMQ = [&](auto &mq, auto &&id) {
+ mq.id_ = id;
+ ShmSocket tmp(shm, id, eOpenOrCreate);
+ mq.offset_ = tmp.AbsAddr();
+ };
+
+ int id = 100;
+ auto NextId = [&]() { return ++id; };
+ InitMQ(info.mq_sender_, NextId());
+ InitMQ(info.mq_center_, NextId());
+ InitMQ(info.mq_bus_, NextId());
+
+ pmeta->tag_ = kCenterInfoTag;
+ return true;
+ }
+ }
+ return false;
+}
+
+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(shm)->init_rr_.ClientRequest(request, reply);
+}
+void BHCenterHandleInit(SharedMemory &shm, std::function<int64_t(const int64_t)> const &onReq)
+{
+ GetCenterInfo(shm)->init_rr_.ServerProcess(onReq);
+}
int64_t CalcAllocIndex(int64_t size)
{
@@ -84,19 +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);
- typedef std::atomic<MQId> IdSrc;
- IdSrc *psrc = shm.FindOrCreate<IdSrc>("shmqIdSrc0", 100000);
- return psrc && ShmMsgQueue::SetData(*psrc);
-}
+bool GlobalInit(SharedMemory &shm) { return GetCenterInfo(shm); }
+
+MQId NewSession() { return 10 * (++GetCenterInfo(BHomeShm())->mqid_); }
void SetLastError(const int ec, const std::string &msg)
{
@@ -108,4 +205,8 @@
{
ec = LastErrorStore().ec_;
msg = LastErrorStore().msg_;
-}
\ No newline at end of file
+}
+
+int NodeTimeoutSec() { return 60; }
+
+std::string BHLogDir() { return "/opt/vasystem/valog/"; }
--
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