1 | /** @file
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2 | * PDM - Pluggable Device Manager, Critical Sections.
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3 | */
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4 |
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5 | /*
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6 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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7 | *
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8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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9 | * available from http://www.virtualbox.org. This file is free software;
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10 | * you can redistribute it and/or modify it under the terms of the GNU
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11 | * General Public License (GPL) as published by the Free Software
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12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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15 | *
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16 | * The contents of this file may alternatively be used under the terms
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17 | * of the Common Development and Distribution License Version 1.0
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18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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19 | * VirtualBox OSE distribution, in which case the provisions of the
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20 | * CDDL are applicable instead of those of the GPL.
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21 | *
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22 | * You may elect to license modified versions of this file under the
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23 | * terms and conditions of either the GPL or the CDDL or both.
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24 | *
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25 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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26 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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27 | * additional information or have any questions.
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28 | */
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29 |
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30 | #ifndef ___VBox_pdmcritsect_h
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31 | #define ___VBox_pdmcritsect_h
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32 |
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33 | #include <VBox/types.h>
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34 | #include <iprt/critsect.h>
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35 |
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36 | __BEGIN_DECLS
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37 |
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38 | /** @defgroup grp_pdm_critsect The PDM Critical Section API
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39 | * @ingroup grp_pdm
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40 | * @{
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41 | */
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42 |
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43 | /**
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44 | * A PDM critical section.
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45 | * Initialize using PDMDRVHLP::pfnCritSectInit().
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46 | */
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47 | typedef union PDMCRITSECT
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48 | {
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49 | /** Padding. */
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50 | uint8_t padding[HC_ARCH_BITS == 64 ? 0xb8 : 0xa8];
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51 | #ifdef PDMCRITSECTINT_DECLARED
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52 | /** The internal structure (not normally visible). */
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53 | struct PDMCRITSECTINT s;
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54 | #endif
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55 | } PDMCRITSECT;
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56 | /** Pointer to a PDM critical section. */
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57 | typedef PDMCRITSECT *PPDMCRITSECT;
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58 | /** Pointer to a const PDM critical section. */
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59 | typedef const PDMCRITSECT *PCPDMCRITSECT;
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60 |
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61 | VMMR3DECL(int) PDMR3CritSectInit(PVM pVM, PPDMCRITSECT pCritSect, const char *pszName);
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62 | VMMDECL(int) PDMCritSectEnter(PPDMCRITSECT pCritSect, int rcBusy);
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63 | VMMDECL(int) PDMCritSectTryEnter(PPDMCRITSECT pCritSect);
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64 | VMMR3DECL(int) PDMR3CritSectEnterEx(PPDMCRITSECT pCritSect, bool fCallHost);
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65 | VMMDECL(void) PDMCritSectLeave(PPDMCRITSECT pCritSect);
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66 | VMMDECL(bool) PDMCritSectIsOwner(PCPDMCRITSECT pCritSect);
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67 | VMMDECL(bool) PDMCritSectIsOwnerEx(PCPDMCRITSECT pCritSect, VMCPUID idCpu);
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68 | VMMDECL(bool) PDMCritSectIsOwned(PCPDMCRITSECT pCritSect);
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69 | VMMDECL(bool) PDMCritSectIsInitialized(PCPDMCRITSECT pCritSect);
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70 | VMMDECL(uint32_t) PDMCritSectGetRecursion(PCPDMCRITSECT pCritSect);
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71 | VMMR3DECL(int) PDMR3CritSectScheduleExitEvent(PPDMCRITSECT pCritSect, RTSEMEVENT EventToSignal);
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72 | VMMR3DECL(int) PDMR3CritSectDelete(PPDMCRITSECT pCritSect);
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73 | VMMDECL(int) PDMR3CritSectTerm(PVM pVM);
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74 | VMMDECL(void) PDMCritSectFF(PVMCPU pVCpu);
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75 | VMMR3DECL(uint32_t) PDMR3CritSectCountOwned(PVM pVM, char *pszNames, size_t cbNames);
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76 |
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77 | /** @} */
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78 |
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79 | __END_DECLS
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80 |
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81 | #endif
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82 |
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