Question

java - c++ inter process communication

Asked by: geva

i have a codec , written in c++, which receives packets from a video server. the player i intend to use is a JMF -based player applet. the problem i'm facing is passing the uncompressed data from the c++ codec to the JMF applet.
what is the best way of doing it?

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Asked On
2001-02-04 at 10:20:29ID20070627
Tags

java

,

communication

Topic

Java Programming Language

Participating Experts
5
Points
75
Comments
5

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Answers

 

by: ItamarPosted on 2001-02-04 at 10:31:53ID: 5810967

Hi,
How about using JNI to read the date from the c++ codec.
I know its not much but did you explore this posibility?
Itamar

 

by: jpkPosted on 2001-02-06 at 09:30:13ID: 5818006

As Itamar suggested, the best alternative, if both Codec and Applet are on the same box, is to use JNI (the answer assumes you are using IPC in the clasical context i.e.: a pipe or shared memoy scheme which allows communication between to applications sharing a common execution context).

On the other hand, you mention a JMF applet, which implies a network connection.

If this is the case, then you are left with three options:

1) Again JNI to establish a bridge between the Codec and a Java based server using any port to transfer the data. (Simple to start with but gets complicated if you involve firewalls)

2) A JNI bridge from codec to a Java Server that uses RMI to tranfer the data. (Not as simple but solves the Firewall problem)

3) A C++ Corba server that sends the data to the applet dirrectly. More complex to set up on both ends, but will eventualy be more efficient since CORBA IIOP is the prefered mechanism for network based cross architecture communication.

 

by: ESIPosted on 2001-03-24 at 13:56:18ID: 5955678

And if both process are running on the same OS ?
I mean, how can we create a "concurrent" shared memory with Java ?

 

by: ExceterPosted on 2003-01-04 at 19:14:33ID: 7670662

No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:

- points to jpk

Please leave any comments here within the
next seven days.

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER !

Exceter
Cleanup Volunteer

 

by: BanathPosted on 2003-01-14 at 23:09:29ID: 7730487

Per recommendation, force-accepted.

Banath
EE Moderator

20120131-EE-VQP-002

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