leveldb/port/README.md

This directory contains interfaces and implementations that isolate the
rest of the package from platform details.

Code in the rest of the package includes "port.h" from this directory.
"port.h" in turn includes a platform specific "port_<platform>.h" file
that provides the platform specific implementation.

See port_stdcxx.h for an example of what must be provided in a platform
specific header file.
Initial checkin. git-svn-id: https://leveldb.googlecode.com/svn/trunk@2 62dab493-f737-651d-591e-8d6aee1b9529 2011-03-19 06:37:00 +08:00			`This directory contains interfaces and implementations that isolate the`
			`rest of the package from platform details.`

			`Code in the rest of the package includes "port.h" from this directory.`
			`"port.h" in turn includes a platform specific "port_<platform>.h" file`
			`that provides the platform specific implementation.`

Replace port_posix with port_stdcxx. The porting layer implements threading primitives: atomic pointers, condition variables, mutexes, thread-safe initialization. These are all specified in C++11, so the reference open source port implementation can become platform-independent. The porting layer will remain in place to allow the use of other implementations with more features, such as the built-in deadlock detection in abseil's Mutex. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=193245934 2018-04-18 04:23:10 +08:00			`See port_stdcxx.h for an example of what must be provided in a platform`
Initial checkin. git-svn-id: https://leveldb.googlecode.com/svn/trunk@2 62dab493-f737-651d-591e-8d6aee1b9529 2011-03-19 06:37:00 +08:00			`specific header file.`