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delphi-cross-socket's Introduction

Delphi 跨平台 Socket 通讯库

作者: WiNDDRiVER([email protected])

特性

  • 针对不同平台使用不同的IO模型:

    • IOCP

    Windows

    • KQUEUE

    FreeBSD(MacOSX, iOS...)

    • EPOLL

    Linux(Linux, Android...)

  • 支持极高的并发

    • Windows

    能跑10万以上的并发数, 需要修改注册表调整默认的最大端口数

    • Mac

    做了初步测试, 测试环境为虚拟机中的 OSX 10.9.5, 即便修改了系统的句柄数限制, 最多也只能打开32000多个并发连接, 或许 OSX Server 版能支持更高的并发吧

  • 同时支持IPv4、IPv6

  • 零内存拷贝

已通过测试

  • Windows
  • OSX
  • iOS
  • Android
  • Linux

建议开发环境

  • 要发挥跨平台的完整功能请使用Delphi 10.2 Tokyo及以上的版本
  • 最低要求支持泛型和匿名函数的Delphi版本, 具体是从哪个版本开始支持泛型和匿名函数的我也不是太清楚

已知问题

  • iOS做了初步测试, 连接数超过80以后还有些问题, 不过通常iOS下的应用谁会去开好几十 连接呢?

  • Android初步测试, 并发到450之后就无法增加了, 可能受限于系统的文件句柄数设置.

  • Ubuntu桌面版下似乎有内存泄漏 但是追查不到到底是哪部分代码造成的, 甚至无法确定是delphi内置的rtl库还是我所写的代码引起的. 通过 LeakCheck 库能粗略看出引起内存泄漏的是一个 AnsiString 变量, 并不能定位到具体的代码. 但是我自己的代码里根本没有任何地方定义或者使用过类似的变量, 其它Linux发行版本尚未测试.

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