Two-phase commit protocol

wikipedia Two-phase commit protocol

csdn 两阶段提交协议（two phase commit protocol，2PC）

Example

sqlite

由于要基于sqlite开发一个基于virtual table的extension，在阅读sqlite The Virtual Table Mechanism Of SQLite#2.16. The xSync Method时，其中有这样的描述:

This method signals the start of a two-phase commit on a virtual table.

显然，这是为了支持transaction的，这让我想起来之前在学习Redis的时候，其中也有描述two-phase commit protocol，所以有必要对Two-phase commit 进行总结。

sqlite implementation of Two-phase commit

如下重要方法:

xBegin

xSync

xCommit

xRollback

参见: sqlite The Virtual Table Mechanism Of SQLite#2.16. The xSync Method

C++

Generic: Change the Way You Write Exception-Safe Code — Forever

AddFriend now has two distinct parts: the activity phase, in which the operations occur, and the commitment phase, which doesn't throw — it only stops the undo from happening.