Program Listing for File hook-helper.h

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/******************************************************************************
© Intel Corporation.

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and your use of them is governed by the express license under which they
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 This software and the related documents are provided as is, with no express
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******************************************************************************/
#pragma once

#include "igpa-config.h"
#include <stdint.h>

struct GPADispatchTable;

namespace gpa {

GPA_EXPORT GPADispatchTable const** ThreadDispatchTable();

GPA_EXPORT uint32_t* ThreadStackDepthCounter();

struct StackDepthHelper
{
    StackDepthHelper(uint32_t& pStackDepthCounter)
        : pSdc(pStackDepthCounter)
    {
        ++pSdc;
    }

    ~StackDepthHelper()
    {
        --pSdc;
    }

private:
    uint32_t& pSdc;
};

}  // namespace gpa

#define STACK_HELPER(counter) ::gpa::StackDepthHelper helper(counter)

#define UNLESS_TOP_OF_STACK_NO_RETURN(action)           \
    uint32_t& sdcRef = *gpa::ThreadStackDepthCounter(); \
    if (sdcRef) {                                       \
        action;                                         \
    }                                                   \
    ::gpa::StackDepthHelper helper(sdcRef);

#define UNLESS_TOP_OF_STACK(action)                     \
    uint32_t& sdcRef = *gpa::ThreadStackDepthCounter(); \
    if (sdcRef) {                                       \
        action;                                         \
        return;                                         \
    }                                                   \
    ::gpa::StackDepthHelper helper(sdcRef);

#define UNLESS_TOP_OF_STACK_RETURN(action)              \
    uint32_t& sdcRef = *gpa::ThreadStackDepthCounter(); \
    if (sdcRef) {                                       \
        return action;                                  \
    }                                                   \
    ::gpa::StackDepthHelper helper(sdcRef);