flockit

This library and tool exists solely because rsync doesn't have file locking.

It's not used like a normal library; you don't link against it, and you don't have to patch your source code to use it. It's inserted between your program and its libraries by use of LD_PRELOAD.

For example:

$ env LD_PRELOAD=$(nix-build -A pkgs.flockit)/lib/libflockit.so FLOCKIT_FILE_PREFIX=test rsync SRC DEST

Besides the library a handy executable is provided which can simplify the above to:

$ $(nix-build -A pkgs.flockit)/bin/flockit test rsync SRC DEST

Also see the following blog post: https://www.swiftstack.com/blog/2012/08/15/old-school-monkeypatching/

Name

flockit

Main Program

flockit

Programs

• flockit

Homepage

• https://github.com/smerritt/flockit

Version

2012-08-11

License

• Apache License 2.0

Maintainers

• Bas van Dijk

Platforms

• aarch64-linux
• armv5tel-linux
• armv6l-linux
• armv7a-linux
• armv7l-linux
• i686-linux
• loongarch64-linux
• m68k-linux
• microblaze-linux
• microblazeel-linux
• mips-linux
• mips64-linux
• mips64el-linux
• mipsel-linux
• powerpc-linux
• powerpc64-linux
• powerpc64le-linux
• riscv32-linux
• riscv64-linux
• s390-linux
• s390x-linux
• x86_64-linux

Defined

Source