src/share/vm/runtime/commandLineFlagConstraintList.hpp
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src/share/vm/runtime/commandLineFlagConstraintList.hpp

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  32  * Here we have a mechanism for extracting constraints (as custom functions) for flags,
  33  * which otherwise can not be expressed via simple range check, specified in flag macro tables.
  34  *
  35  * An example of a constraint is "flag1 < flag2" where both flag1 and flag2 can change.
  36  *
  37  * See runtime "runtime/commandLineFlagConstraintsCompiler.hpp",
  38  * "runtime/commandLineFlagConstraintsGC.hpp" and 
  39  * "runtime/commandLineFlagConstraintsRuntime.hpp" for the functions themselves.
  40  */
  41 
  42 typedef Flag::Error (*CommandLineFlagConstraintFunc_bool)(bool verbose, bool* value);
  43 typedef Flag::Error (*CommandLineFlagConstraintFunc_int)(bool verbose, int* value);
  44 typedef Flag::Error (*CommandLineFlagConstraintFunc_intx)(bool verbose, intx* value);
  45 typedef Flag::Error (*CommandLineFlagConstraintFunc_uint)(bool verbose, uint* value);
  46 typedef Flag::Error (*CommandLineFlagConstraintFunc_uintx)(bool verbose, uintx* value);
  47 typedef Flag::Error (*CommandLineFlagConstraintFunc_uint64_t)(bool verbose, uint64_t* value);
  48 typedef Flag::Error (*CommandLineFlagConstraintFunc_size_t)(bool verbose, size_t* value);
  49 typedef Flag::Error (*CommandLineFlagConstraintFunc_double)(bool verbose, double* value);
  50 
  51 class CommandLineFlagConstraint : public CHeapObj<mtInternal> {
  52 public:
  53   const char* _name;


  54   CommandLineFlagConstraint(const char* name) { _name=name; };
  55   ~CommandLineFlagConstraint() {};
  56   const char* name() { return _name; }
  57   virtual Flag::Error apply_bool(bool* value, bool verbose = true) { return Flag::SUCCESS; };
  58   virtual Flag::Error apply_int(int* value, bool verbose = true) { return Flag::SUCCESS; };
  59   virtual Flag::Error apply_intx(intx* value, bool verbose = true) { return Flag::SUCCESS; };
  60   virtual Flag::Error apply_uint(uint* value, bool verbose = true) { return Flag::SUCCESS; };
  61   virtual Flag::Error apply_uintx(uintx* value, bool verbose = true) { return Flag::SUCCESS; };
  62   virtual Flag::Error apply_uint64_t(uint64_t* value, bool verbose = true) { return Flag::SUCCESS; };
  63   virtual Flag::Error apply_size_t(size_t* value, bool verbose = true) { return Flag::SUCCESS; };
  64   virtual Flag::Error apply_double(double* value, bool verbose = true) { return Flag::SUCCESS; };
  65 };
  66 
  67 class CommandLineFlagConstraintList : public CHeapObj<mtInternal> {

  68   static GrowableArray<CommandLineFlagConstraint*>* _constraints;
  69 public:
  70   static void init();
  71   static int length() { return (_constraints != NULL) ? _constraints->length() : 0; }
  72   static CommandLineFlagConstraint* at(int i) { return (_constraints != NULL) ? _constraints->at(i) : NULL; }
  73   static CommandLineFlagConstraint* find(const char* name);
  74   static void add(CommandLineFlagConstraint* constraint) { _constraints->append(constraint); }
  75 };
  76 
  77 #endif /* SHARE_VM_RUNTIME_COMMANDLINEFLAGCONSTRAINTLIST_HPP */


  32  * Here we have a mechanism for extracting constraints (as custom functions) for flags,
  33  * which otherwise can not be expressed via simple range check, specified in flag macro tables.
  34  *
  35  * An example of a constraint is "flag1 < flag2" where both flag1 and flag2 can change.
  36  *
  37  * See runtime "runtime/commandLineFlagConstraintsCompiler.hpp",
  38  * "runtime/commandLineFlagConstraintsGC.hpp" and 
  39  * "runtime/commandLineFlagConstraintsRuntime.hpp" for the functions themselves.
  40  */
  41 
  42 typedef Flag::Error (*CommandLineFlagConstraintFunc_bool)(bool verbose, bool* value);
  43 typedef Flag::Error (*CommandLineFlagConstraintFunc_int)(bool verbose, int* value);
  44 typedef Flag::Error (*CommandLineFlagConstraintFunc_intx)(bool verbose, intx* value);
  45 typedef Flag::Error (*CommandLineFlagConstraintFunc_uint)(bool verbose, uint* value);
  46 typedef Flag::Error (*CommandLineFlagConstraintFunc_uintx)(bool verbose, uintx* value);
  47 typedef Flag::Error (*CommandLineFlagConstraintFunc_uint64_t)(bool verbose, uint64_t* value);
  48 typedef Flag::Error (*CommandLineFlagConstraintFunc_size_t)(bool verbose, size_t* value);
  49 typedef Flag::Error (*CommandLineFlagConstraintFunc_double)(bool verbose, double* value);
  50 
  51 class CommandLineFlagConstraint : public CHeapObj<mtInternal> {
  52 private:
  53   const char* _name;
  54 public:
  55   // the "name" argument must be a string literal
  56   CommandLineFlagConstraint(const char* name) { _name=name; };
  57   ~CommandLineFlagConstraint() {};
  58   const char* name() { return _name; }
  59   virtual Flag::Error apply_bool(bool* value, bool verbose = true) { ShouldNotReachHere(); return Flag::ERR_OTHER; };
  60   virtual Flag::Error apply_int(int* value, bool verbose = true) { ShouldNotReachHere(); return Flag::ERR_OTHER; };
  61   virtual Flag::Error apply_intx(intx* value, bool verbose = true) { ShouldNotReachHere(); return Flag::ERR_OTHER; };
  62   virtual Flag::Error apply_uint(uint* value, bool verbose = true) { ShouldNotReachHere(); return Flag::ERR_OTHER; };
  63   virtual Flag::Error apply_uintx(uintx* value, bool verbose = true) { ShouldNotReachHere(); return Flag::ERR_OTHER; };
  64   virtual Flag::Error apply_uint64_t(uint64_t* value, bool verbose = true) { ShouldNotReachHere(); return Flag::ERR_OTHER; };
  65   virtual Flag::Error apply_size_t(size_t* value, bool verbose = true) { ShouldNotReachHere(); return Flag::ERR_OTHER; };
  66   virtual Flag::Error apply_double(double* value, bool verbose = true) { ShouldNotReachHere(); return Flag::ERR_OTHER; };
  67 };
  68 
  69 class CommandLineFlagConstraintList : public AllStatic {
  70 private:
  71   static GrowableArray<CommandLineFlagConstraint*>* _constraints;
  72 public:
  73   static void init();
  74   static int length() { return (_constraints != NULL) ? _constraints->length() : 0; }
  75   static CommandLineFlagConstraint* at(int i) { return (_constraints != NULL) ? _constraints->at(i) : NULL; }
  76   static CommandLineFlagConstraint* find(const char* name);
  77   static void add(CommandLineFlagConstraint* constraint) { _constraints->append(constraint); }
  78 };
  79 
  80 #endif /* SHARE_VM_RUNTIME_COMMANDLINEFLAGCONSTRAINTLIST_HPP */
src/share/vm/runtime/commandLineFlagConstraintList.hpp
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