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OS/2 Shareware BBS: 10 Tools
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10-Tools.zip
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kernex32.zip
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mwdd_src.zip
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32bits
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ext2-os2
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devhlp32
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DevHlp32_AllocGDTSelector.c
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C/C++ Source or Header
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1997-03-16
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2KB
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60 lines
//
// $Header: d:\\32bits\\ext2-os2\\devhlp32\\rcs\\DevHlp32_AllocGDTSelector.c,v 1.3 1997/03/15 16:38:23 Willm Exp $
//
// 32 bits OS/2 device driver and IFS support. Provides 32 bits kernel
// services (DevHelp) and utility functions to 32 bits OS/2 ring 0 code
// (device drivers and installable file system drivers).
// Copyright (C) 1995, 1996, 1997 Matthieu WILLM (willm@ibm.net)
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#define INCL_DOS
#define INCL_DOSERRORS
#define INCL_NOPMAPI
#include <os2.h>
#include <string.h>
#include <os2/types.h>
#include <os2/StackToFlat.h>
#include <os2/DevHlp32.h>
extern int DH32ENTRY DevHlp32_AllocOneGDTSelector(
unsigned short *psel /* eax !!! STACK BASED !!! */
);
int DH32ENTRY DevHlp32_AllocGDTSelector(unsigned short *psel, int count) {
int rc;
unsigned short sel;
int i;
i = 0;
rc = NO_ERROR;
while ((rc == NO_ERROR) && (i < count)) {
rc = DevHlp32_AllocOneGDTSelector(&sel);
if (rc == NO_ERROR) {
psel[i++] = sel;
}
}
/*
* In case of error we should free successfuly allocated GDT selectors
*/
if (rc != NO_ERROR) {
while (i) DevHlp32_FreeGDTSelector(psel[--i]);
}
return rc;
}