diff options
Diffstat (limited to 'ext/fiddle/conversions.h')
-rw-r--r-- | ext/fiddle/conversions.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/ext/fiddle/conversions.h b/ext/fiddle/conversions.h new file mode 100644 index 0000000000..166c5d9af4 --- /dev/null +++ b/ext/fiddle/conversions.h @@ -0,0 +1,41 @@ +#ifndef FIDDLE_CONVERSIONS_H +#define FIDDLE_CONVERSIONS_H + +#include <fiddle.h> + +typedef union +{ + unsigned char uchar; /* ffi_type_uchar */ + signed char schar; /* ffi_type_schar */ + unsigned short ushort; /* ffi_type_sshort */ + signed short sshort; /* ffi_type_ushort */ + unsigned int uint; /* ffi_type_uint */ + signed int sint; /* ffi_type_sint */ + unsigned long ulong; /* ffi_type_ulong */ + signed long slong; /* ffi_type_slong */ + float ffloat; /* ffi_type_float */ + double ddouble; /* ffi_type_double */ +#if HAVE_LONG_LONG + unsigned LONG_LONG long_long; /* ffi_type_uint64 */ +#endif + void * pointer; /* ffi_type_pointer */ +} fiddle_generic; + +ffi_type * int_to_ffi_type(int type); +void value_to_generic(int type, VALUE src, fiddle_generic * dst); +VALUE generic_to_value(VALUE rettype, fiddle_generic retval); + +#define VALUE2GENERIC(_type, _src, _dst) value_to_generic(_type, _src, _dst) +#define INT2FFI_TYPE(_type) int_to_ffi_type(_type) +#define GENERIC2VALUE(_type, _retval) generic_to_value(_type, _retval) + +#if SIZEOF_VOIDP == SIZEOF_LONG +# define PTR2NUM(x) (ULONG2NUM((unsigned long)(x))) +# define NUM2PTR(x) ((void*)(NUM2ULONG(x))) +#else +/* # error --->> Ruby/DL2 requires sizeof(void*) == sizeof(long) to be compiled. <<--- */ +# define PTR2NUM(x) (ULL2NUM((unsigned long long)(x))) +# define NUM2PTR(x) ((void*)(NUM2ULL(x))) +#endif + +#endif |