kernel/core/processor/x64/SyscallManager.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef KERNEL_PROCESSOR_X64_SYSCALLMANAGER_H
#define KERNEL_PROCESSOR_X64_SYSCALLMANAGER_H

#include "pedigree/kernel/Spinlock.h"
#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/processor/SyscallManager.h"
#include "pedigree/kernel/processor/Syscalls.h"
#include "pedigree/kernel/processor/state_forward.h"
#include "pedigree/kernel/processor/types.h"

class SyscallHandler;

class X64SyscallManager : public ::SyscallManager
{
    friend class Processor;

  public:
    inline static X64SyscallManager &instance()
    {
        return m_Instance;
    }

    virtual bool
    registerSyscallHandler(Service_t Service, SyscallHandler *pHandler);

    static void initialiseProcessor() INITIALISATION_ONLY;

    uintptr_t syscall(
        Service_t service, uintptr_t function, uintptr_t p1, uintptr_t p2,
        uintptr_t p3, uintptr_t p4, uintptr_t p5);

  private:
    static void syscall(SyscallState &syscallState) USED;

    X64SyscallManager() INITIALISATION_ONLY;
    X64SyscallManager(const X64SyscallManager &);
    X64SyscallManager &operator=(const X64SyscallManager &);
    virtual ~X64SyscallManager();

    Spinlock m_Lock;

    SyscallHandler *m_pHandler[serviceEnd];

    static X64SyscallManager m_Instance;
};

#endif