Files
@ d0a14f973771
Branch filter:
Location: vmkdrivers/BLD/build/HEADERS/vmkapi-current-all-public/vmkernel64/release/core/vmkapi_context_incompat.h
d0a14f973771
3.8 KiB
text/x-chdr
ESXi-5.0-U1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | /* **********************************************************
* Copyright 2007 - 2009 VMware, Inc. All rights reserved.
* **********************************************************/
/*
* @VMKAPIMOD_LICENSE@
*/
/*
***********************************************************************
* Contexts */ /**
* \defgroup Contexts Execution Context Information
*
* There are several types of execution contexts available to run code
* in vmkernel.
*
* @{
***********************************************************************
*/
#ifndef _VMKAPI_CONTEXT_H_
#define _VMKAPI_CONTEXT_H_
/** \cond never */
#ifndef VMK_HEADER_INCLUDED_FROM_VMKAPI_H
#error This vmkapi file should never be included directly but only via vmkapi.h
#endif
/** \endcond never */
/**
* \brief Possible execution contexts
*/
typedef enum {
VMK_CONTEXT_TYPE_UNKNOWN=0,
VMK_CONTEXT_TYPE_NMI=1,
VMK_CONTEXT_TYPE_INTERRUPT=2,
VMK_CONTEXT_TYPE_BOTTOM_HALF=3,
VMK_CONTEXT_TYPE_WORLD=4,
} vmk_ContextType;
/*
***********************************************************************
* vmk_ContextGetCurrentType -- */ /**
*
* \ingroup Contexts
* \brief Get the current execution context type the caller is
* executing in.
*
* \note This function will not block.
*
* \return The current execution context.
*
***********************************************************************
*/
vmk_ContextType vmk_ContextGetCurrentType(
void);
/*
***********************************************************************
* vmk_ContextIsInterruptHandler -- */ /**
*
* \ingroup Contexts
* \brief Determine if the current context is an interrupt handler and
* return the interrupt vector being handled.
*
* \note This function will not block.
*
* \return VMK_TRUE if running an interrupt handler.
* \return VMK_FALSE if not running an interrupt handler.
*
***********************************************************************
*/
vmk_Bool vmk_ContextIsInterruptHandler(
vmk_uint32 *vector);
/*
***********************************************************************
* vmk_ContextTypeCanBlock -- */ /**
*
* \ingroup Contexts
* \brief Determine if a particular context type allows blocking calls.
*
* This API only indicates if the given context allows blocking in
* general. It does NOT indicate whether the context \em currently allows
* blocking. For instance, it is forbidden to block while holding
* a spinlock even from a blockable context. If this call were made
* while a spinlock were held, it would return the same value as if
* a spinlock were not held. So it may not be used to determine if
* a context is \em currently blockable.
*
* \note This function will not block.
*
* \param[in] type The context type to check.
*
* \retval VMK_TRUE The supplied context type allows blocking calls.
* \retval VMK_FALSE The supplied context type does not allow
* blocking calls.
*
***********************************************************************
*/
vmk_Bool vmk_ContextTypeCanBlock(
vmk_ContextType type);
/*
***********************************************************************
* vmk_ContextTypeToString -- */ /**
*
* \ingroup Contexts
* \brief Convert a context type to a human-readable string.
*
* \note This function will not block.
*
* \param[in] type The context type to convert to a string.
*
* \return The string corresponding to the context type.
*
***********************************************************************
*/
const char * vmk_ContextTypeToString(
vmk_ContextType type);
#endif /* _VMKAPI_CONTEXT_H_ */
/** @} */
|