Crate instance_copy_on_write 

• 
  let val = 
      ICoW::new(TestStruct::new(1, 2));
  
  // read only 
  let read1 = val.read();
  //..
  drop(read1);
  
  // ...
  
  // copy on write NON-exclusively, read is possible
  let mut transaction = val.clone();
  
  transaction.start = 5;
  transaction.stop = 6;
  
  // update, after calling this function, all reades who 
  // read before will still see old version.
  // all reades after, new
  transaction.commit();
  //or
  drop(transaction); // to drop changes
  
  
  // exclusive lock, read is also not possible
  
  let res = val.clone_exclusivly();
  // ..
  // commit changes releasing lock
  commit(val); //or
  drop(val); // to drop changes and release lock
  

Re-exports

pub use cow_mutex::ICoW;

pub use cow_mutex::ICoWRead;

pub use cow_mutex::ICoWCopy;

pub use cow_mutex::ICoWLock;

Modules

cow_mutex

A RwLock based copy-on-write.

Enums

ICoWError

Errors which may be returned.

ICoWLockTypes

Type of the sync code.