Thomas Hallgren wrote:
>>Other than that fear, though, the JNI approach seems to have pretty
>>considerable advantages. You listed startup time as the main
>>disadvantage, but perhaps that could be worked around. Suppose the
>>postmaster started a JVM --- would that state inherit correctly into
>>subsequently forked backends?
>>
>>
>>
>That's an interesting thougth. The postmaster just forks. It never exec's
>right? Is this true for win32 as well? I've never tried it but it might be
>worth pursuing. Sun's new Java 1.5 jvm does this albeit a bit differently.
>An initializer process starts up and persists its state. Subsequent JVM's
>then reuse that state. I definitely plan for Pl/Java_JNI to take advantage
>of that.
>
>
>
Unfortunately, WIN32 has no fork(), and we have to exec the backend, in
effect. You would need to handle both scenarios (#ifdef EXEC_BACKEND).
For Unix this could be nice, though , and eliminate most of the
disadvantage of your approach.
cheers
andrew