PosixSyscallManager.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 POSIX_SYSCALL_MANAGER_H
#define POSIX_SYSCALL_MANAGER_H
 
#include "pedigree/kernel/process/Mutex.h"
#include "pedigree/kernel/processor/SyscallHandler.h"
#include "pedigree/kernel/processor/SyscallManager.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/Tree.h"
 
class PosixSyscallManager : public SyscallHandler {
 public:
  bool initialise();
  bool closeAdmission();
  bool finishShutdown();
  bool shutdown();
 
  uintptr_t call(uintptr_t function, uintptr_t p1 = 0, uintptr_t p2 = 0, uintptr_t p3 = 0,
                 uintptr_t p4 = 0, uintptr_t p5 = 0);
 
  virtual uintptr_t syscall(SyscallState& state);
 
  PosixSyscallManager();
  virtual ~PosixSyscallManager();
 
 private:
  static uintptr_t syscallEntry(SyscallHandler* handler, SyscallState& state);
#if PEDIGREE_BENCHMARK_SYSCALL_TRACE
  static uintptr_t syscallDispatch(SyscallHandler* handler, SyscallState& state);
#endif
 
  PosixSyscallManager(const PosixSyscallManager&);
  PosixSyscallManager& operator=(const PosixSyscallManager&);
  Tree<uint64_t, bool> m_SeenUnsupportedSyscalls;
  Mutex m_UnsupportedSyscallsLock;
  SyscallManager::Registration m_LinuxRegistration;
  SyscallManager::Registration m_PosixRegistration;
};
 
#endif