DosSetMaxFH (OS/2 1.x)

Description

This call defines the maximum number of file handles for the current process.

Syntax

 DosSetMaxFH

    (NumberHandles)

Parameters

NumberHandles (USHORT) - input

Total number of file handles to be provided.

Return Code

rc (USHORT) - return

Return code descriptions are:

• 0 NO_ERROR
• 8 ERROR_NOT_ENOUGH_MEMORY
• 87 ERROR_INVALID_PARAMETER

Remarks

OS/2 initially allots 20 file handles to a process, which is the recommended amount for an application. However, if the system limit has not been reached, this amount can be increased with DosSetMaxFH. When this call is made, all open file handles are preserved.

Example Code

C Binding

#define INCL_DOSFILEMGR

USHORT  rc = DosSetMaxFH(NumberHandles);

USHORT           NumberHandles; /* Number of file handles */

USHORT           rc;            /* return code */

MASM Binding

EXTRN  DosSetMaxFH:FAR
INCL_DOSFILEMGR     EQU 1

PUSH   WORD    NumberHandles ;Number of file handles
CALL   DosSetMaxFH

Returns WORD