From a76a94009d78a6a41654335dcb9202fb31659de0 Mon Sep 17 00:00:00 2001 From: lichao <lichao@aiotlink.com> Date: 星期四, 25 三月 2021 13:23:16 +0800 Subject: [PATCH] bulid msg, refactor. --- src/msg.h | 19 +++++++++++++------ 1 files changed, 13 insertions(+), 6 deletions(-) diff --git a/src/msg.h b/src/msg.h index 214bb72..8a820bd 100644 --- a/src/msg.h +++ b/src/msg.h @@ -21,6 +21,7 @@ #include <stdint.h> #include "shm.h" #include <boost/interprocess/offset_ptr.hpp> +#include <boost/uuid/uuid_generators.hpp> namespace bhome_shm { @@ -32,6 +33,8 @@ kMsgTypeMaxValue }; +typedef boost::uuids::uuid MQId; + const uint32_t kMsgMetaTag = 0xf1e2d3c4; struct MsgMetaV1 { @@ -39,10 +42,10 @@ uint16_t type_ = kMsgTypeNormal; // msg type. uint32_t tag_ = kMsgMetaTag; uint32_t data_size_ = 0; - unsigned char src_id_[16] = {0}; + MQId src_id_; // more fields add at end, must not change - MsgMetaV1(){} + MsgMetaV1():src_id_(boost::uuids::nil_uuid()){} bool Parse(const void *p); void Pack(void *p); }; @@ -63,7 +66,6 @@ private: offset_ptr<void> ptr_; offset_ptr<RefCount> count_; - void swap(Msg &a) { std::swap(ptr_, a.ptr_); std::swap(count_, a.count_); } public: class CountGuard : private boost::noncopyable { Msg &msg_; @@ -73,6 +75,7 @@ }; Msg(void *p=0, RefCount *c=0):ptr_(p), count_(c) {} + void swap(Msg &a) { std::swap(ptr_, a.ptr_); std::swap(count_, a.count_); } // ~Msg() { RemoveRef(); } // Msg(const Msg &a):ptr_(a.ptr_), count_(a.count_) { AddRef(); } @@ -81,11 +84,15 @@ // Msg & operator = (Msg &&a) { Msg(std::move(a)).swap(*this); } template <class T = void> T *get() { return static_cast<T*>(ptr_.get()); } - int AddRef() { return count_ ? count_->Inc() : 0; } - int RemoveRef() { return count_ ? count_->Dec() : 0; } - int Count() { return count_ ? count_->Get() : 0; } + int AddRef() const { return count_ ? count_->Inc() : 0; } + int RemoveRef() const{ return count_ ? count_->Dec() : 0; } + int Count() const { return count_ ? count_->Get() : 0; } + bool Build(SharedMemory &shm, const MQId &src_id, const void *p, const size_t size, const bool refcount); + void FreeFrom(SharedMemory &shm); }; +Msg BuildMsg(const MQId &src, const void *p, const size_t size); + } // namespace bhome_shm -- Gitblit v1.8.0