|
|
Classification: |
Java |
Category: |
General |
Created: |
12/13/99 |
Modified: |
06/22/2001 |
Number: |
FAQ-0452 |
Platform: |
ER5 |
|
Question: My Java app runs fine on EPOC opening 20 files concurrently. But when I increase that number to 30, it crashes with an IOException
being thrown from the RandomAccessFile constructor. Is this a consequence of a limit in EPOC on the number of files which
can be held open concurrently by an app/process?
Answer: There is no restriction from the EPOC file server itself on the number of open files. However, STDLIB, which is used by Java
for all file i/o, allocates a fixed number of file descriptors per process (that number is 32). The first three are allocated
to stdin, stdout and stderr. Another is allocated to classes.zip, leaving a maximum of 28 for the application. Other jar or
zip files used by the app will reduce the available number even further. 17/3/00 Note added: this has been fixed for future releases of the EPOC Runtime for Java so that the number of files can be increased without
limit.
|
|
|