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Java Forum / General / February 2007Monitoring native threads using JNI
Hi All, I have simple java application which monitors a directory (on windows). Monitoring part is in c++ and i want to call that from java using JNI. I search web, but couldn't get a reasonable response. Is there a way to listen or monitor a native thread. Coz c++ part of the code runs a thread which monitors and notifies the listen if there is change in directory. any pointers Nataraj > Hi All, > I have simple java application which monitors a directory (on [quoted text clipped - 4 lines] > change in directory. any pointers > Nataraj What is the problem here? Assuming your C++ is running quite fine and whenever there is a change in directory it is notifing the code in java. rite? >Monitoring part is in c++ and i want to call that from java > using JNI. You want the help in C++ part or Java part? I mean are you able to monitor the native thread in C++? > > Hi All, > > I have simple java application which monitors a directory (on [quoted text clipped - 11 lines] > You want the help in C++ part or Java part? I mean are you able to > monitor the native thread in C++? I am sorry my mistake... C++ notifies in C++ part of the code. Is there a way to get the notification from C++ code to java Code. Like making a Java thread an observer for C++ directory change notification > C++ notifies in C++ part of the code. Is there a way to get the > notification from C++ code to java Code. Like making a Java thread > an observer for C++ directory change notification You can invoke any Java methods from the C++ code. For example, pass a reference to your observer object when you make the initial native call to set up the directory watcher. When it's time to notify, call the appropriate method. /gordon  Signature[ don't email me support questions or followups ] g o r d o n + n e w s @ b a l d e r 1 3 . s e Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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