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README.md
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[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/mutouyun/cpp-ipc/blob/master/LICENSE) [![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/mutouyun/cpp-ipc/blob/master/LICENSE)
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[![Build status](https://ci.appveyor.com/api/projects/status/github/mutouyun/cpp-ipc?branch=master&svg=true)](https://ci.appveyor.com/project/mutouyun/cpp-ipc) [![Build status](https://ci.appveyor.com/api/projects/status/github/mutouyun/cpp-ipc?branch=master&svg=true)](https://ci.appveyor.com/project/mutouyun/cpp-ipc)
[![Vcpkg package](https://img.shields.io/badge/Vcpkg-package-blueviolet)](https://github.com/microsoft/vcpkg/tree/master/ports/cpp-ipc)
A high-performance inter-process communication using shared memory on Linux/Windows. A high-performance inter-process communication using shared memory on Linux/Windows.
使用共享内存的跨平台（Linux/Windows，x86/x64/ARM）高性能IPC通讯库。 使用共享内存的跨平台（Linux/Windows，x86/x64/ARM）高性能IPC通讯库。
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* `ipc::route`支持单写多读，`ipc::channel`支持多写多读【**注意：目前同一条通道最多支持32个receiver，sender无限制**】 * `ipc::route`支持单写多读，`ipc::channel`支持多写多读【**注意：目前同一条通道最多支持32个receiver，sender无限制**】
* 默认采用广播模式收发数据，支持用户任意选择读写方案 * 默认采用广播模式收发数据，支持用户任意选择读写方案
* 不会长时间忙等（重试一定次数后会使用信号量进行等待），支持超时 * 不会长时间忙等（重试一定次数后会使用信号量进行等待），支持超时
* 支持[Vcpkg](https://github.com/microsoft/vcpkg/blob/master/README_zh_CN.md)方式安装，如`vcpkg install cpp-ipc`
## Usage ## Usage

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src/libipc/queue.h
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} }
std::size_t conn_count() const noexcept { std::size_t conn_count() const noexcept {
return (elems_ == nullptr) ? invalid_value : elems_->conn_count(); return (elems_ == nullptr) ? static_cast<std::size_t>(invalid_value) : elems_->conn_count();
} }
bool valid() const noexcept { bool valid() const noexcept {