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added thread safety for the manager Acache initialization. #33

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added thread safety for the manager Acache initialization. #33

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8 changes: 6 additions & 2 deletions AsimpleCacheDemo/ASimpleCache/org/afinal/simplecache/ACache.java
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Original file line number Diff line number Diff line change
Expand Up @@ -83,8 +83,12 @@ public static ACache get(Context ctx, long max_zise, int max_count) {
public static ACache get(File cacheDir, long max_zise, int max_count) {
ACache manager = mInstanceMap.get(cacheDir.getAbsoluteFile() + myPid());
if (manager == null) {
manager = new ACache(cacheDir, max_zise, max_count);
mInstanceMap.put(cacheDir.getAbsolutePath() + myPid(), manager);
synchronized(this){
if(manager == null){
manager = new ACache(cacheDir, max_zise, max_count);
mInstanceMap.put(cacheDir.getAbsolutePath() + myPid(), manager);
}
}
}
return manager;
}
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