tempExternalMutexFor [1031845]

< > BotCompany Repo | #1031845 // tempExternalMutexFor

JavaX fragment (include) [tags: use-pretranspiled]

// TODO: either put ExternalMutex in JavaX
// or make externalMutexMap local
static IAutoCloseableF0 tempExternalMutexFor(O o) {
  var map = externalMutexMap();
  synchronized(map) {
    ExternalMutex mutex = map.get(o);
    if (mutex == null)
      map.put(o, mutex = new ExternalMutex);
    var _mutex = mutex;
    mutex.incRefCount();
    ret new IAutoCloseableF0 {
      public O get() { ret _mutex; }
      public void close {
        synchronized(map) {
          if (_mutex.decRefCount() == 0)
            map.remove(o);
        }
      }
    };
  }
}

Author comment

Began life as a copy of #1031844

Travelled to 3 computer(s): bhatertpkbcr, mqqgnosmbjvj, pyentgdyhuwx

Snippet ID:

#1031845

Snippet name:

tempExternalMutexFor

Eternal ID of this version:

#1031845/9

Text MD5:

28324940aa39091510c5b31dc6bf5c7e

Transpilation MD5:

106e4b5a388dc99f87e3bc457eeccfd9

Author:

stefan

Category:

javax

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2021-07-16 06:02:51

Source code size:

578 bytes / 21 lines

Pitched / IR pitched:

No / No

Views / Downloads:

109 / 167

Version history:

8 change(s)

Referenced in:

[show references]

1	// TODO: either put ExternalMutex in JavaX
2	// or make externalMutexMap local
3	static IAutoCloseableF0 tempExternalMutexFor(O o) {
4	var map = externalMutexMap();
5	synchronized(map) {
6	ExternalMutex mutex = map.get(o);
7	if (mutex == null)
8	map.put(o, mutex = new ExternalMutex);
9	var _mutex = mutex;
10	mutex.incRefCount();
11	ret new IAutoCloseableF0 {
12	public O get() { ret _mutex; }
13	public void close {
14	synchronized(map) {
15	if (_mutex.decRefCount() == 0)
16	map.remove(o);
17	}
18	}
19	};
20	}
21	}