js/ipc/CPOWTypes.h

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  40
  41 #ifndef mozilla_jsipc_ContextWrapperTypes_h__
  42 #define mozilla_jsipc_ContextWrapperTypes_h__
  43
  44 #include "jsapi.h"
  45 #include "jspubtd.h"
  46
  47 using mozilla::void_t;
  48
  49 namespace mozilla {
  50 namespace jsipc {
  51
  52 using namespace IPC;
  53
  54 template <typename P>
  55 struct CPOWSingleton
  56 {
  57     static void Write(Message*, const P&) {}
  58     static bool Read(const Message*, void**, P*) { return true; }
  59 };
  60
  61 template <typename Type, typename As>
  62 struct CPOWConvertible
  63 {
  64     static void Write(Message* m, const Type& t) {
  65         WriteParam(m, As(t));
  66     }
  67     static bool Read(const Message* m, void** iter, Type* tp) {
  68         As a;
  69         return (ReadParam(m, iter, &a) &&
  70                 (*tp = Type(a), true));
  71     }
  72 };
  73
  74 } // namespace jsipc
  75 } // namespace mozilla
  76
  77 namespace IPC {
  78
  79 using namespace mozilla::jsipc;
  80
  81 template <> struct ParamTraits<JSType> : public CPOWConvertible<JSType, int> {};
  82
  83 }
  84
  85 // TODO Use a more standard logging mechanism.
  86 #ifdef LOGGING
  87 #define CPOW_LOG(PRINTF_ARGS) \
  88     JS_BEGIN_MACRO            \
  89     printf("CPOW | ");        \
  90     printf PRINTF_ARGS ;      \
  91     printf("\n");             \
  92     JS_END_MACRO
  93 #define JSVAL_TO_CSTR(CX, V) \
  94     NS_ConvertUTF16toUTF8(nsString(JS_GetStringChars(JS_ValueToString(CX, V)))).get()
  95 #else
  96 #define CPOW_LOG(_) JS_BEGIN_MACRO JS_END_MACRO
  97 #define JSVAL_TO_CSTR(CX, V) ((char*)0)
  98 #endif
  99
 100 #endif