| 1 | /* $Id: OS2KPTDA.c,v 1.2 2000-09-02 21:08:12 bird Exp $
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| 2 | *
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| 3 | * PTDA access functions.
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| 4 | *
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| 5 | * Copyright (c) 2000 knut st. osmundsen (knut.stange.osmundsen@pmsc.no)
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| 6 | *
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| 7 | * Project Odin Software License can be found in LICENSE.TXT
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| 8 | *
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| 9 | */
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| 10 |
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| 11 | /*******************************************************************************
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| 12 | * Defined Constants And Macros *
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| 13 | *******************************************************************************/
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| 14 | #define INCL_OS2KRNL_SEM
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| 15 | #define INCL_OS2KRNL_PTDA
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| 16 |
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| 17 | /*******************************************************************************
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| 18 | * Header Files *
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| 19 | *******************************************************************************/
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| 20 | #include <os2.h>
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| 21 | #include <OS2Krnl.h>
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| 22 |
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| 23 |
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| 24 | /*******************************************************************************
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| 25 | * External Data *
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| 26 | *******************************************************************************/
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| 27 | /*
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| 28 | * Requires the following imports:
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| 29 | * pPTDACur
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| 30 | * ptda_start
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| 31 | * ptda_environ
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| 32 | */
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| 33 | extern ULONG pptda_start;
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| 34 | extern ULONG pptda_environ;
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| 35 | extern ULONG pptda_ptdasem;
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| 36 | extern ULONG pptda_module;
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| 37 |
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| 38 |
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| 39 | /**
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| 40 | * Gets the ptda_environ PTDA member. This member holds the memory object handle
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| 41 | * for the environment block of the processes.
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| 42 | * @returns Content of the pPTDA->ptda_environ member.
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| 43 | * @param pPTDA PTDA Pointer. (NULL is not allowed!)
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| 44 | */
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| 45 | USHORT ptdaGet_ptda_environ(PPTDA pPTDA)
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| 46 | {
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| 47 | return *(PUSHORT)(void*)(((char*)(void*)pPTDA) + (pptda_environ - pptda_start));
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| 48 | }
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| 49 |
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| 50 |
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| 51 | /**
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| 52 | * Gets the ptda_module PTDA member. This member holds the MTE handle of the process's
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| 53 | * executable image.
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| 54 | * @returns Content of the pPTDA->ptda_module member.
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| 55 | * @param pPTDA PTDA Pointer. (NULL is not allowed!)
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| 56 | */
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| 57 | USHORT ptdaGet_ptda_module(PPTDA pPTDA)
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| 58 | {
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| 59 | return *(PUSHORT)(void*)(((char*)(void*)pPTDA) + (pptda_module - pptda_start));
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| 60 | }
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| 61 |
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| 62 |
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| 63 | /**
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| 64 | * Gets the ptda_ptdasem PTDA member. This member holds the intra-process semaphore which
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| 65 | * for example is used to serialize _LDRQAppType.
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| 66 | * @returns Content of the pPTDA->ptda_ptdasem member.
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| 67 | * @param pPTDA PTDA Pointer. (NULL is not allowed!)
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| 68 | */
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| 69 | HKSEMMTX ptda_ptda_ptdasem(PPTDA pPTDA)
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| 70 | {
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| 71 | return (HKSEMMTX)(void*)(((char*)(void*)pPTDA) + (pptda_ptdasem - pptda_start));
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| 72 | }
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| 73 |
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| 74 |
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| 75 |
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