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3 Commits

Author SHA1 Message Date
Alexander Boettcher
41380ff769 base: remove Cancelable_lock 
- base/cancelable_lock.h becomes base/lock.h
- all members become private within base/lock.h
- solely Mutex and Blockade are friends to use base/lock.h

Fixes #3819
 2020-07-30 08:49:23 +02:00
Norman Feske
ab8ef5750d doc: tweaks for updated Genode Foundations book 2020-05-27 11:56:46 +02:00
Alexander Boettcher
00f69bc70d base: add mutex as derivate of lock 
The mutex class is more restrictive in usage compared to
Genode::Lock.

- At initialiation time it is ever unlocked.
- No thread is permitted to lock twice. Warn about it
  in case it happens.
- Only the lock onwer is permitted to unlock the mutex.
  Warn about it and don't unlock the mutex in case it happens.

Issue #3612
 2020-02-20 12:11:22 +01:00