Crate protex 

for multi threading applications we need a way to bring concurrency to the application . sometimes we want multiple applications be concurrent there are several ways to achieve this goal . this crate tries to be simple , fast and cross platform concurrency Mutex like way to bring concurrency not even for multi threaded apps but also multi process apps so its named Protex (Process Mutex) . this crate must work on Android , iOS , Windows and All Unix like platforms

this simple crate only exports two structs Protex and ProtexGuard .

Protex has new , unlock and remove methods on all the supported platforms . protex::Protex::new(std::ffi::CString , u32) , creates new instance of Protex type with assigned name . this name is used by other processes to find the same Protex instance so think of it as ID . (tested name formats are “/smth”) and u32 type which registers the max number of threads which can lock the Protex at same time . after creating Protex instance you can use unlock method which returns ProtexGuard and when it goes out of the scope unlock is released . but remove method is must be called from your main process to remove the Protex instance , if your app crashes for any reason protex instance will remain valid on the system on Unix like systems . so if you wont need it anymore on the starting point of your processes consider creating and removing the instance of Protex .

lock error codes meaning : error -2 = Protex instance is not intialized . error -1 = there was problem with instance of Protex .

Structs

Protex

ProTex (process mutex) is used to bring concurrency to multi processing well it can be used for multithreading too

ProtexGuard

it will release the ProTex when it goes out of the scope automatically