class LockedVar - thread-safe variable (same as Var), but using a ReentrantLock [1019343]

18
LINES

< > BotCompany Repo | #1019343 // class LockedVar - thread-safe variable (same as Var), but using a ReentrantLock

JavaX fragment (include)

static class LockedVar<A> implements IVar<A> {
  A v; // you can access this directly if you use one thread
  transient Lock lock = lock();
  
  *() {}
  *(A *v) {}
  
  public void set(A a) {
    lock lock;
    v = a;
  }
  
  public A get() { lock lock; ret v; }
  public bool has() { lock lock; ret v != null; }
  public void clear() { lock lock; v = null; }
  
  toString { ret str(get()); }
}

Author comment

Began life as a copy of #1003550

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Snippet ID:	#1019343
Snippet name:	class LockedVar - thread-safe variable (same as Var), but using a ReentrantLock
Eternal ID of this version:	#1019343/2
Text MD5:	c9a0a7063eaeeeb2855c791aaa01819f
Author:	stefan
Category:	javax
Type:	JavaX fragment (include)
Public (visible to everyone):	Yes
Archived (hidden from active list):	No
Created/modified:	2018-11-03 12:59:29
Source code size:	414 bytes / 18 lines
Pitched / IR pitched:	No / No
Views / Downloads:	305 / 842
Version history:	1 change(s)
Referenced in:	[show references]

1	static class LockedVar<A> implements IVar<A> {
2	A v; // you can access this directly if you use one thread
3	transient Lock lock = lock();
4
5	*() {}
6	(A v) {}
7
8	public void set(A a) {
9	lock lock;
10	v = a;
11	}
12
13	public A get() { lock lock; ret v; }
14	public bool has() { lock lock; ret v != null; }
15	public void clear() { lock lock; v = null; }
16
17	toString { ret str(get()); }
18	}