C++ Protect函数代码示例

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本文整理汇总了C++中Protect函数的典型用法代码示例。如果您正苦于以下问题：C++ Protect函数的具体用法？C++ Protect怎么用？C++ Protect使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了Protect函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: ReadSegment

// static
already_AddRefed<Shmem::SharedMemory>
Shmem::OpenExisting(IHadBetterBeIPDLCodeCallingThis_OtherwiseIAmADoodyhead,
                    const IPC::Message& aDescriptor,
                    id_t* aId,
                    bool aProtect)
{
  size_t size;
  size_t pageSize = SharedMemory::SystemPageSize();
  // |2*pageSize| is for the front and back sentinels
  RefPtr<SharedMemory> segment = ReadSegment(aDescriptor, aId, &size, 2*pageSize);
  if (!segment) {
    return nullptr;
  }

  Header* header = GetHeader(segment);

  if (size != header->mSize) {
    // Deallocation should zero out the header, so check for that.
    if (header->mSize || header->mUnsafe || header->mMagic[0] ||
        memcmp(header->mMagic, &header->mMagic[1], sizeof(header->mMagic)-1)) {
      NS_ERROR("Wrong size for this Shmem!");
    } else {
      NS_WARNING("Shmem was deallocated");
    }
    return nullptr;
  }

  // The caller of this function may not know whether the segment is
  // unsafe or not
  if (!header->mUnsafe && aProtect)
    Protect(segment);

  return segment.forget();
}

开发者ID:luke-chang，项目名称:gecko-1，代码行数:35，代码来源:Shmem.cpp

示例2: Protect

/*----------------------------------------------*/
PLH::MemoryProtect::MemoryProtect(void* Address, size_t Size, DWORD ProtectionFlags)
{
	m_Address = Address;
	m_Size = Size;
	m_Flags = ProtectionFlags;
	Protect(m_Address, m_Size, m_Flags);
}

开发者ID:johndpope，项目名称:PolyHook，代码行数:8，代码来源:PolyHook.cpp

示例3: ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectUser

MonoBoolean
ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectUser (const gunichar2 *path, MonoError *error)
{
	gboolean ret = FALSE;
	
	/* read/write to user, no access to everyone else */
	ret = Protect (path, (S_IRUSR | S_IWUSR), S_IXUSR);
	return (MonoBoolean)ret;
}

开发者ID:LogosBible，项目名称:mono，代码行数:9，代码来源:mono-security.c

示例4: ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectMachine

MonoBoolean
ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectMachine (const gunichar2 *path, MonoError *error)
{
	gboolean ret = FALSE;

	/* read/write to owner, read to everyone else */
	ret = Protect (path, (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH), (S_IXUSR | S_IXGRP | S_IXOTH));
	return (MonoBoolean)ret;
}

开发者ID:LogosBible，项目名称:mono，代码行数:9，代码来源:mono-security.c

示例5: NS_RUNTIMEABORT

// static
Shmem::SharedMemory*
Shmem::OpenExisting(IHadBetterBeIPDLCodeCallingThis_OtherwiseIAmADoodyhead,
                    const IPC::Message& aDescriptor,
                    id_t* aId,
                    bool aProtect)
{
  if (SHMEM_CREATED_MESSAGE_TYPE != aDescriptor.type())
    NS_RUNTIMEABORT("expected 'shmem created' message");

  void* iter = 0;
  SharedMemory::SharedMemoryType type;
  size_t size;
  if (!ShmemCreated::ReadInfo(&aDescriptor, &iter, aId, &size, &type))
    return 0;

  SharedMemory* segment = 0;
  size_t pageSize = SharedMemory::SystemPageSize();
  // |2*pageSize| is for the front and back sentinels
  size_t segmentSize = SharedMemory::PageAlignedSize(size + 2*pageSize);

  if (SharedMemory::TYPE_BASIC == type) {
    SharedMemoryBasic::Handle handle;
    if (!ShmemCreated::ReadHandle(&aDescriptor, &iter, &handle))
      return 0;

    if (!SharedMemoryBasic::IsHandleValid(handle))
      NS_RUNTIMEABORT("trying to open invalid handle");
    segment = CreateSegment(segmentSize, handle);
  }
#ifdef MOZ_HAVE_SHAREDMEMORYSYSV
  else if (SharedMemory::TYPE_SYSV == type) {
    SharedMemorySysV::Handle handle;
    if (!ShmemCreated::ReadHandle(&aDescriptor, &iter, &handle))
      return 0;

    if (!SharedMemorySysV::IsHandleValid(handle))
      NS_RUNTIMEABORT("trying to open invalid handle");
    segment = CreateSegment(segmentSize, handle);
  }
#endif
  else {
    NS_RUNTIMEABORT("unknown shmem type");
  }

  if (!segment)
    return 0;

  // The caller of this function may not know whether the segment is
  // unsafe or not
  Header* header = GetHeader(segment);
  if (!header->mUnsafe && aProtect)
    Protect(segment);

  return segment;
}

开发者ID:LittleForker，项目名称:mozilla-central，代码行数:56，代码来源:Shmem.cpp

示例6: sqrt

quad_float sqrt(const quad_float& y) {
  if (y.hi < 0.0) 
    ArithmeticError("quad_float: square root of negative number");
  if (y.hi == 0.0) return quad_float(0.0,0.0);

  double c;
  c = sqrt(y.hi);
  ForceToMem(&c);  // This is fairly paranoid, but it doesn't cost too much.

START_FIX

  DOUBLE p,q,hx,tx,u,uu,cc;
  DOUBLE t1;

  p = Protect(NTL_QUAD_FLOAT_SPLIT*c); 
  hx = (c-p); 
  hx = hx+p; 
  tx = c-hx;
  p = Protect(hx*hx);
  q = Protect(hx*tx);
  q = q+q;

  u = p+q;
  uu = p-u;
  uu = uu+q;
  t1 = Protect(tx*tx);
  uu = uu+t1;


  cc = y.hi-u;
  cc = cc-uu;
  cc = cc+y.lo;
  t1 = c+c;
  cc = cc/t1;

  hx = c+cc;
  tx = c-hx;
  tx = tx+cc;
END_FIX
  return quad_float(hx, tx);
}

开发者ID:tell，项目名称:ntl-unix，代码行数:41，代码来源:quad_float.cpp

示例7: ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectMachine

MonoBoolean
ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectMachine (MonoString *path)
{
	gboolean ret = FALSE;

	/* read/write to owner, read to everyone else */
#ifdef HOST_WIN32
	ret = ProtectMachine (mono_string_chars (path));
#else
	ret = Protect (path, (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH), (S_IXUSR | S_IXGRP | S_IXOTH));
#endif
	return ret;
}

开发者ID:ItsVeryWindy，项目名称:mono，代码行数:13，代码来源:mono-security.c

示例8: ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectUser

MonoBoolean
ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectUser (MonoString *path)
{
	gboolean ret = FALSE;
	
	/* read/write to user, no access to everyone else */
#ifdef HOST_WIN32
	ret = ProtectUser (mono_string_chars (path));
#else
	ret = Protect (path, (S_IRUSR | S_IWUSR), S_IXUSR);
#endif
	return ret;
}

开发者ID:ItsVeryWindy，项目名称:mono，代码行数:13，代码来源:mono-security.c

示例9: NS_ASSERTION

// static
already_AddRefed<Shmem::SharedMemory>
Shmem::Alloc(IHadBetterBeIPDLCodeCallingThis_OtherwiseIAmADoodyhead,
             size_t aNBytes,
             SharedMemoryType aType,
             bool aUnsafe,
             bool aProtect)
{
  NS_ASSERTION(aNBytes <= UINT32_MAX, "Will truncate shmem segment size!");
  MOZ_ASSERT(!aProtect || !aUnsafe, "protect => !unsafe");

  size_t pageSize = SharedMemory::SystemPageSize();
  nsRefPtr<SharedMemory> segment;
  // |2*pageSize| is for the front and back sentinel
  size_t segmentSize = SharedMemory::PageAlignedSize(aNBytes + 2*pageSize);

  if (aType == SharedMemory::TYPE_BASIC)
    segment = CreateSegment(segmentSize, SharedMemoryBasic::NULLHandle());
#ifdef MOZ_HAVE_SHAREDMEMORYSYSV
  else if (aType == SharedMemory::TYPE_SYSV)
    segment = CreateSegment(segmentSize, SharedMemorySysV::NULLHandle());
#endif
  else {
    NS_ERROR("unknown shmem type");
    return nullptr;
  }

  if (!segment)
    return nullptr;

  Header* header;
  char *frontSentinel;
  char *data;
  char *backSentinel;
  GetSections(segment, &header, &frontSentinel, &data, &backSentinel);

  // initialize the segment with Shmem-internal information

  // NB: this can't be a static assert because technically pageSize
  // isn't known at compile time, event though in practice it's always
  // going to be 4KiB
  MOZ_ASSERT(sizeof(Header) <= pageSize,
             "Shmem::Header has gotten too big");
  memcpy(header->mMagic, sMagic, sizeof(sMagic));
  header->mSize = static_cast<uint32_t>(aNBytes);
  header->mUnsafe = aUnsafe;

  if (aProtect)
    Protect(segment);

  return segment.forget();
}

开发者ID:Acidburn0zzz，项目名称:tor-browser，代码行数:52，代码来源:Shmem.cpp

示例10: VALIDATE_NOT_NULL

ECode CVpnService::Protect(
    /* [in] */ IDatagramSocket* socket,
    /* [out] */ Boolean* reault)
{
    VALIDATE_NOT_NULL(reault);

    AutoPtr<IFileDescriptor> descriptor;
    socket->GetFileDescriptor((IFileDescriptor**)&descriptor);

    Int32 fd;
    descriptor->GetDescriptor(&fd);

    return Protect(fd, result);
}

开发者ID:TheTypoMaster，项目名称:ElastosRDK5_0，代码行数:14，代码来源:CVpnService.cpp

示例11: Protect

quad_float& operator /=(quad_float& x, const quad_float& y ) {
START_FIX
  DOUBLE hc, tc, hy, ty, C, c, U, u;
  DOUBLE t1;

  C = x.hi/y.hi;
  c = Protect(NTL_QUAD_FLOAT_SPLIT*C);
  hc = c-C;
  u = Protect(NTL_QUAD_FLOAT_SPLIT*y.hi);
  hc = c-hc;
  tc = C-hc;
  hy = u-y.hi;
  U = Protect(C * y.hi);
  hy = u-hy;
  ty = y.hi-hy;

  // u = (((hc*hy-U)+hc*ty)+tc*hy)+tc*ty;

  u = Protect(hc*hy);
  u = u-U;
  t1 = Protect(hc*ty);
  u = u+t1;
  t1 = Protect(tc*hy);
  u = u+t1;
  t1 = Protect(tc*ty);
  u = u+t1;

  // c = ((((x.hi-U)-u)+x.lo)-C*y.lo)/y.hi;

  c = x.hi-U;
  c = c-u;
  c = c+x.lo;
  t1 = Protect(C*y.lo);
  c = c - t1;
  c = c/y.hi;
  
  hy = C+c;
  ty = C-hy;
  ty = ty+c;

  x.hi = hy;
  x.lo = ty;
END_FIX
  return x;
}

开发者ID:tell，项目名称:ntl-unix，代码行数:45，代码来源:quad_float.cpp

示例12: vm_mini_vm

void vm_mini_vm(lua_State *L, LClosure *cl, int count, int pseudo_ops_offset) {
  const Instruction *pc;
  StkId base;
  TValue *k;

  k = cl->p->k;
  pc = cl->p->code + pseudo_ops_offset;
  base = L->base;
  /* process next 'count' ops */
  for (; count > 0; count--) {
    const Instruction i = *pc++;
    StkId ra = RA(i);
    lua_assert(base == L->base && L->base == L->ci->base);
    lua_assert(base <= L->top && L->top <= L->stack + L->stacksize);
    lua_assert(L->top == L->ci->top || luaG_checkopenop(i));
    switch (GET_OPCODE(i)) {
      case OP_MOVE: {
        setobjs2s(L, ra, RB(i));
        continue;
      }
      case OP_LOADK: {
        setobj2s(L, ra, KBx(i));
        continue;
      }
      case OP_GETUPVAL: {
        int b = GETARG_B(i);
        setobj2s(L, ra, cl->upvals[b]->v);
        continue;
      }
      case OP_SETUPVAL: {
        UpVal *uv = cl->upvals[GETARG_B(i)];
        setobj(L, uv->v, ra);
        luaC_barrier(L, uv, ra);
        continue;
      }
      case OP_SETTABLE: {
        Protect(luaV_settable(L, ra, RKB(i), RKC(i)));
        continue;
      }
      default: {
        luaG_runerror(L, "Bad opcode: opcode=%d", GET_OPCODE(i));
        continue;
      }
    }
  }
}

开发者ID:GranPC，项目名称:llvm-lua，代码行数:46，代码来源:lua_vm_ops_static.c

示例13: AssertInvariants

void
Shmem::RevokeRights(IHadBetterBeIPDLCodeCallingThis_OtherwiseIAmADoodyhead)
{
  AssertInvariants();

  size_t pageSize = SharedMemory::SystemPageSize();
  Header* header = GetHeader(mSegment);

  // Open this up for reading temporarily
  mSegment->Protect(reinterpret_cast<char*>(header), pageSize, RightsRead);

  if (!header->mUnsafe) {
    Protect(mSegment);
  } else {
    mSegment->Protect(reinterpret_cast<char*>(header), pageSize, RightsNone);
  }
}

开发者ID:LittleForker，项目名称:mozilla-central，代码行数:17，代码来源:Shmem.cpp

示例14: luaV_execute

void luaV_execute (lua_State *L) {
  CallInfo *ci = L->ci;
  LClosure *cl;
  TValue *k;
  StkId base;
 newframe:  /* reentry point when frame changes (call/return) */
  lua_assert(ci == L->ci);
  cl = clLvalue(ci->func);
  k = cl->p->k;
  base = ci->u.l.base;

  //printf( "s:%p\n", ci->u.l.savedpc );
  /* main loop of interpreter */
  for (;;) {

    Instruction i = *(ci->u.l.savedpc++);
    StkId ra;
    if ((L->hookmask & (LUA_MASKLINE | LUA_MASKCOUNT)) &&
        (--L->hookcount == 0 || L->hookmask & LUA_MASKLINE)) {
      Protect(traceexec(L));
    }
    /* warning!! several calls may realloc the stack and invalidate `ra' */
    ra = RA(i);
    lua_assert(base == ci->u.l.base);
    lua_assert(base <= L->top && L->top < L->stack + L->stacksize);


    // 命令出力
    //printInst( ci->u.l.savedpc - 1 );


    vmdispatch (GET_OPCODE(i)) {
      vmcase(OP_MOVE,
        setobjs2s(L, ra, RB(i));
      )
      vmcase(OP_LOADK,
        TValue *rb = k + GETARG_Bx(i);
        setobj2s(L, ra, rb);
      )
      vmcase(OP_LOADKX,
        TValue *rb;
        lua_assert(GET_OPCODE(*ci->u.l.savedpc) == OP_EXTRAARG);
        rb = k + GETARG_Ax(*ci->u.l.savedpc++);
        setobj2s(L, ra, rb);
      )

开发者ID:lriki，项目名称:Volkoff，代码行数:45，代码来源:lvm.c

示例15: vm_OP_TFORLOOP

int vm_OP_TFORLOOP(lua_State *L, int a, int c) {
  TValue *base = L->base;
  TValue *ra = base + a;
  StkId cb = ra + 3;  /* call base */
  setobjs2s(L, cb+2, ra+2);
  setobjs2s(L, cb+1, ra+1);
  setobjs2s(L, cb, ra);
  L->top = cb+3;  /* func. + 2 args (state and index) */
  Protect(luaD_call(L, cb, c));
  L->top = L->ci->top;
  cb = base + a + 3;  /* previous call may change the stack */
  if (!ttisnil(cb)) {  /* continue loop? */
    setobjs2s(L, cb-1, cb);  /* save control variable */
    dojump(GETARG_sBx(*L->savedpc));
    return 1;
  }
  return 0;
}

开发者ID:GranPC，项目名称:llvm-lua，代码行数:18，代码来源:lua_vm_ops_static.c

示例16: vm_OP_VARARG

void vm_OP_VARARG(lua_State *L, LClosure *cl, int a, int b) {
  TValue *base = L->base;
  TValue *ra = base + a;
  int j;
  CallInfo *ci = L->ci;
  int n = cast_int(ci->base - ci->func) - cl->p->numparams - 1;
  b -= 1;
  if (b == LUA_MULTRET) {
    Protect(luaD_checkstack(L, n));
    ra = base + a;  /* previous call may change the stack */
    b = n;
    L->top = ra + n;
  }
  for (j = 0; j < b; j++) {
    if (j < n) {
      setobjs2s(L, ra + j, ci->base - n + j);
    }
    else {
      setnilvalue(ra + j);
    }
  }
}

开发者ID:GranPC，项目名称:llvm-lua，代码行数:22，代码来源:lua_vm_ops_static.c

示例17: PageAlignedSize

// static
Shmem::SharedMemory*
Shmem::Alloc(IHadBetterBeIPDLCodeCallingThis_OtherwiseIAmADoodyhead,
             size_t aNBytes,
             SharedMemoryType aType,
             bool aProtect)
{
  size_t pageSize = SharedMemory::SystemPageSize();
  SharedMemory* segment = nsnull;
  // |2*pageSize| is for the front and back sentinel
  size_t segmentSize = PageAlignedSize(aNBytes + 2*pageSize);

  if (aType == SharedMemory::TYPE_BASIC)
    segment = CreateSegment(segmentSize, SharedMemoryBasic::NULLHandle());
#ifdef MOZ_HAVE_SHAREDMEMORYSYSV
  else if (aType == SharedMemory::TYPE_SYSV)
    segment = CreateSegment(segmentSize, SharedMemorySysV::NULLHandle());
#endif
  else
    NS_RUNTIMEABORT("unknown shmem type");

  if (!segment)
    return 0;

  char *frontSentinel;
  char *data;
  char *backSentinel;
  GetSections(segment, &frontSentinel, &data, &backSentinel);

  // initialize the segment with Shmem-internal information
  Header* header = reinterpret_cast<Header*>(frontSentinel);
  memcpy(header->mMagic, sMagic, sizeof(sMagic));
  header->mSize = aNBytes;

  if (aProtect)
    Protect(segment);

  return segment;
}

开发者ID:lofter2011，项目名称:Icefox，代码行数:39，代码来源:Shmem.cpp

示例18: AssertInvariants

void
Shmem::RevokeRights(IHadBetterBeIPDLCodeCallingThis_OtherwiseIAmADoodyhead)
{
  AssertInvariants();
  Protect(mSegment);
}

开发者ID:lofter2011，项目名称:Icefox，代码行数:6，代码来源:Shmem.cpp

示例19: AI_Control

void AI_Control( WorldStuff *world_stuff, int vehicle_number )
    {
     Player *player;
     team_type team, enemy_team;

     short frames_till_traitor_deactivate;
     short frames_till_unscramble;
     short scramble_life;
     short traitor_life;


     /* Alias pointer to this player */
     player = world_stuff->player_array;

     frames_till_traitor_deactivate = player[vehicle_number].tank.frames_till_traitor_deactivate;
     frames_till_unscramble         = player[vehicle_number].tank.frames_till_unscramble; 
     scramble_life                  = player[vehicle_number].tank.scramble_life;
     traitor_life                   = player[vehicle_number].tank.traitor_life;


     if( player[vehicle_number].tank.team == RED_TEAM )
         {
          team = RED_TEAM;
          enemy_team = BLUE_TEAM;
         }
     else
         {
          team = BLUE_TEAM;
          enemy_team = RED_TEAM;
         }



     if( player[vehicle_number].character.skill_level > 2 && player[vehicle_number].controller != USER_CONTROL )
         {
          if( player[vehicle_number].tank.traitor_active )
          if( frames_till_traitor_deactivate < (traitor_life - 40) )
              player[vehicle_number].tank.traitor_active = FALSE;

          /*
          if( player[vehicle_number].tank.controls_scrambled )
          if( frames_till_unscramble < (scramble_life - 40) )
              player[vehicle_number].tank.controls_scrambled = FALSE;
          */
         }


     if( player[vehicle_number].tank.traitor_active )
         {    
          player[vehicle_number].tank.team = enemy_team;
          player[vehicle_number].team = enemy_team;
         }

     
     /* Clear this players input table */
     Clear_Input_Table( player[vehicle_number].table );

     /* Fill up this players events data structure */
     Update_Player_Events( world_stuff, vehicle_number );

     /* Figure out what state we are in now */
     world_stuff->player_array[vehicle_number].character.state = Find_State( world_stuff, vehicle_number );


     if( player[vehicle_number].tank.traitor_active )
         {    
          world_stuff->player_array[vehicle_number].character.state = ATTACK;
         }

     /* Based on the state of the ai call appropriate control function */
     switch( world_stuff->player_array[vehicle_number].character.state )
         {
          case ATTACK:
              Attack( world_stuff, vehicle_number );
              break;
          case GET_ENERGY:
              Get_Energy( world_stuff, vehicle_number );
              break;
          case PANIC:
              Panic( world_stuff, vehicle_number );
              break;
          case BEZERK:
              Bezerk( world_stuff, vehicle_number );
              break;
          case HIDE:
              Hide( world_stuff, vehicle_number );
              break;
          case GROUPUP:
              Group( world_stuff, vehicle_number );
              break;
          case GET_PYLONS:
              Get_Pylons( world_stuff, vehicle_number );
              break;
          case PROTECT:
              Protect( world_stuff, vehicle_number );
              break;
          case KILL_RADAR_BASE:
              Kill_Radar_Base( world_stuff, vehicle_number );
              break;
          case PROTECT_RADAR_BASE:
//.........这里部分代码省略.........

开发者ID:hyperlogic，项目名称:cylindrix，代码行数:101，代码来源:ai.cpp

示例20: Arith

static void Arith (lua_State *L, StkId ra, const TValue *rb,
                   const TValue *rc, TMS op) {
  TValue tempb, tempc;
  const TValue *b, *c;
#if LUA_REFCOUNT
  luarc_newvalue(&tempb);
  luarc_newvalue(&tempc);
  if ((b = luaV_tonumber(L, rb, &tempb)) != NULL &&
      (c = luaV_tonumber(L, rc, &tempc)) != NULL) {
#else
  if ((b = luaV_tonumber(rb, &tempb)) != NULL &&
      (c = luaV_tonumber(rc, &tempc)) != NULL) {
#endif /* LUA_REFCOUNT */
    lua_Number nb = nvalue(b), nc = nvalue(c);
#if LUA_REFCOUNT
    luarc_cleanvalue(&tempb);
    luarc_cleanvalue(&tempc);
#endif /* LUA_REFCOUNT */
    switch (op) {
      case TM_ADD: setnvalue(ra, luai_numadd(nb, nc)); break;
      case TM_SUB: setnvalue(ra, luai_numsub(nb, nc)); break;
      case TM_MUL: setnvalue(ra, luai_nummul(nb, nc)); break;
      case TM_DIV: setnvalue(ra, luai_numdiv(nb, nc)); break;
      case TM_MOD: setnvalue(ra, luai_nummod(nb, nc)); break;
      case TM_POW: setnvalue(ra, luai_numpow(nb, nc)); break;
      case TM_UNM: setnvalue(ra, luai_numunm(nb)); break;
      default: lua_assert(0); break;
    }
  }
#if LUA_REFCOUNT
  else if (!call_binTM(L, rb, rc, ra, op)) {
    luarc_cleanvalue(&tempb);
    luarc_cleanvalue(&tempc);
    luaG_aritherror(L, rb, rc);
  }
#else
  else if (!call_binTM(L, rb, rc, ra, op))
    luaG_aritherror(L, rb, rc);
#endif /* LUA_REFCOUNT */
}



/*
** some macros for common tasks in `luaV_execute'
*/

#define runtime_check(L, c)	{ if (!(c)) break; }

#define RA(i)	(base+GETARG_A(i))
/* to be used after possible stack reallocation */
#define RB(i)	check_exp(getBMode(GET_OPCODE(i)) == OpArgR, base+GETARG_B(i))
#define RC(i)	check_exp(getCMode(GET_OPCODE(i)) == OpArgR, base+GETARG_C(i))
#define RKB(i)	check_exp(getBMode(GET_OPCODE(i)) == OpArgK, \
	ISK(GETARG_B(i)) ? k+INDEXK(GETARG_B(i)) : base+GETARG_B(i))
#define RKC(i)	check_exp(getCMode(GET_OPCODE(i)) == OpArgK, \
	ISK(GETARG_C(i)) ? k+INDEXK(GETARG_C(i)) : base+GETARG_C(i))
#define KBx(i)	check_exp(getBMode(GET_OPCODE(i)) == OpArgK, k+GETARG_Bx(i))


#define dojump(L,pc,i)	{(pc) += (i); luai_threadyield(L);}


#define Protect(x)	{ L->savedpc = pc; {x;}; base = L->base; }


#define arith_op(op,tm) { \
        TValue *rb = RKB(i); \
        TValue *rc = RKC(i); \
        if (ttisnumber(rb) && ttisnumber(rc)) { \
          lua_Number nb = nvalue(rb), nc = nvalue(rc); \
          setnvalue(ra, op(nb, nc)); \
        } \
        else \
          Protect(Arith(L, ra, rb, rc, tm)); \
      }

#if LUA_BITFIELD_OPS

#define bit_op(op) { \
        TValue *rb = RKB(i); \
        TValue *rc = RKC(i); \
        if (ttisnumber(rb) && ttisnumber(rc)) { \
          unsigned int nb = (unsigned int)nvalue(rb), nc = (unsigned int)nvalue(rc); \
          setnvalue(ra, nb op nc); \
        } \
        else \
          luaG_aritherror(L, rb, rc); \
      }

#endif /* LUA_BITFIELD_OPS */



void luaV_execute (lua_State *L, int nexeccalls) {
  LClosure *cl;
  StkId base;
  TValue *k;
  const Instruction *pc;
 reentry:  /* entry point */
//.........这里部分代码省略.........

开发者ID:zapline，项目名称:zlib，代码行数:101，代码来源:lvm.c

注：本文中的Protect函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ Protect函数代码示例

示例1: ReadSegment

示例2: Protect

示例3: ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectUser

示例4: ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectMachine

示例5: NS_RUNTIMEABORT

示例6: sqrt

示例7: ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectMachine

示例8: ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectUser

示例9: NS_ASSERTION

示例10: VALIDATE_NOT_NULL

示例11: Protect

示例12: vm_mini_vm

示例13: AssertInvariants

示例14: luaV_execute

示例15: vm_OP_TFORLOOP

示例16: vm_OP_VARARG

示例17: PageAlignedSize

示例18: AssertInvariants

示例19: AI_Control

示例20: Arith

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