Q42929: Limit of 40 Files with LLIBCMT.LIB and LLIBCDLL.LIB

Article: Q42929
Product(s): See article
Version(s): 5.10
Operating System(s): OS/2
Keyword(s): ENDUSER | | mspl13_c
Last Modified: 25-JUL-1990

Start-up source code is provided for the real- and protected-mode
standard C run-time libraries. This code can be modified to allow more
file handles and stream pointers to be opened by a process.

This start-up code is not designed for LLIBCMT.LIB or CRTLIB.DLL.
These are the protected-mode libraries for multithreaded applications
and DLLs. The file and stream limits on both of these libraries are
hard coded at 40.

Handles 0, 1, and 2 are opened by C for stdin, stdout, and stderr,
while handles 3, 7, and 8 are opened by different OS/2 subsystems.
With these file handles taken, 34 files can be opened at once.

Note: This restrictin has been removed from the C 6.0 version of these
libraries. In fact, even with C 5.10, the open file count could be
bumped up using DosSetMaxFH().  The problem was with the streams. In C
6.0, the readme.doc file details how to increase the file stream count
also.

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