зеркало из https://github.com/github/ruby.git
384 строки
9.9 KiB
C
384 строки
9.9 KiB
C
#include <stdbool.h>
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#include <fiddle.h>
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VALUE
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rb_fiddle_type_ensure(VALUE type)
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{
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VALUE original_type = type;
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if (!RB_SYMBOL_P(type)) {
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VALUE type_string = rb_check_string_type(type);
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if (!NIL_P(type_string)) {
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type = rb_to_symbol(type_string);
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}
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}
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if (RB_SYMBOL_P(type)) {
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ID type_id = rb_sym2id(type);
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ID void_id;
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ID voidp_id;
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ID char_id;
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ID short_id;
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ID int_id;
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ID long_id;
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#ifdef TYPE_LONG_LONG
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ID long_long_id;
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#endif
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#ifdef TYPE_INT8_T
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ID int8_t_id;
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#endif
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#ifdef TYPE_INT16_T
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ID int16_t_id;
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#endif
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#ifdef TYPE_INT32_T
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ID int32_t_id;
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#endif
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#ifdef TYPE_INT64_T
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ID int64_t_id;
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#endif
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ID float_id;
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ID double_id;
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ID variadic_id;
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ID const_string_id;
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ID size_t_id;
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ID ssize_t_id;
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ID ptrdiff_t_id;
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ID intptr_t_id;
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ID uintptr_t_id;
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ID bool_id;
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RUBY_CONST_ID(void_id, "void");
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RUBY_CONST_ID(voidp_id, "voidp");
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RUBY_CONST_ID(char_id, "char");
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RUBY_CONST_ID(short_id, "short");
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RUBY_CONST_ID(int_id, "int");
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RUBY_CONST_ID(long_id, "long");
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#ifdef TYPE_LONG_LONG
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RUBY_CONST_ID(long_long_id, "long_long");
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#endif
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#ifdef TYPE_INT8_T
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RUBY_CONST_ID(int8_t_id, "int8_t");
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#endif
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#ifdef TYPE_INT16_T
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RUBY_CONST_ID(int16_t_id, "int16_t");
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#endif
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#ifdef TYPE_INT32_T
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RUBY_CONST_ID(int32_t_id, "int32_t");
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#endif
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#ifdef TYPE_INT64_T
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RUBY_CONST_ID(int64_t_id, "int64_t");
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#endif
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RUBY_CONST_ID(float_id, "float");
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RUBY_CONST_ID(double_id, "double");
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RUBY_CONST_ID(variadic_id, "variadic");
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RUBY_CONST_ID(const_string_id, "const_string");
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RUBY_CONST_ID(size_t_id, "size_t");
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RUBY_CONST_ID(ssize_t_id, "ssize_t");
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RUBY_CONST_ID(ptrdiff_t_id, "ptrdiff_t");
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RUBY_CONST_ID(intptr_t_id, "intptr_t");
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RUBY_CONST_ID(uintptr_t_id, "uintptr_t");
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RUBY_CONST_ID(bool_id, "bool");
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if (type_id == void_id) {
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return INT2NUM(TYPE_VOID);
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}
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else if (type_id == voidp_id) {
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return INT2NUM(TYPE_VOIDP);
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}
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else if (type_id == char_id) {
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return INT2NUM(TYPE_CHAR);
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}
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else if (type_id == short_id) {
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return INT2NUM(TYPE_SHORT);
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}
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else if (type_id == int_id) {
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return INT2NUM(TYPE_INT);
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}
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else if (type_id == long_id) {
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return INT2NUM(TYPE_LONG);
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}
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#ifdef TYPE_LONG_LONG
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else if (type_id == long_long_id) {
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return INT2NUM(TYPE_LONG_LONG);
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}
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#endif
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#ifdef TYPE_INT8_T
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else if (type_id == int8_t_id) {
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return INT2NUM(TYPE_INT8_T);
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}
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#endif
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#ifdef TYPE_INT16_T
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else if (type_id == int16_t_id) {
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return INT2NUM(TYPE_INT16_T);
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}
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#endif
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#ifdef TYPE_INT32_T
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else if (type_id == int32_t_id) {
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return INT2NUM(TYPE_INT32_T);
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}
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#endif
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#ifdef TYPE_INT64_T
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else if (type_id == int64_t_id) {
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return INT2NUM(TYPE_INT64_T);
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}
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#endif
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else if (type_id == float_id) {
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return INT2NUM(TYPE_FLOAT);
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}
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else if (type_id == double_id) {
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return INT2NUM(TYPE_DOUBLE);
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}
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else if (type_id == variadic_id) {
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return INT2NUM(TYPE_VARIADIC);
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}
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else if (type_id == const_string_id) {
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return INT2NUM(TYPE_CONST_STRING);
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}
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else if (type_id == size_t_id) {
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return INT2NUM(TYPE_SIZE_T);
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}
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else if (type_id == ssize_t_id) {
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return INT2NUM(TYPE_SSIZE_T);
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}
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else if (type_id == ptrdiff_t_id) {
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return INT2NUM(TYPE_PTRDIFF_T);
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}
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else if (type_id == intptr_t_id) {
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return INT2NUM(TYPE_INTPTR_T);
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}
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else if (type_id == uintptr_t_id) {
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return INT2NUM(TYPE_UINTPTR_T);
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}
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else if (type_id == bool_id) {
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return INT2NUM(TYPE_BOOL);
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}
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else {
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type = original_type;
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}
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}
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return rb_to_int(type);
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}
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ffi_type *
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rb_fiddle_int_to_ffi_type(int type)
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{
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int signed_p = 1;
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if (type < 0) {
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type = -1 * type;
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signed_p = 0;
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}
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#define rb_ffi_type_of(t) (signed_p ? &ffi_type_s##t : &ffi_type_u##t)
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switch (type) {
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case TYPE_VOID:
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return &ffi_type_void;
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case TYPE_VOIDP:
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return &ffi_type_pointer;
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case TYPE_CHAR:
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return rb_ffi_type_of(char);
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case TYPE_SHORT:
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return rb_ffi_type_of(short);
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case TYPE_INT:
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return rb_ffi_type_of(int);
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case TYPE_LONG:
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return rb_ffi_type_of(long);
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#if HAVE_LONG_LONG
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case TYPE_LONG_LONG:
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return rb_ffi_type_of(long_long);
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#endif
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case TYPE_FLOAT:
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return &ffi_type_float;
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case TYPE_DOUBLE:
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return &ffi_type_double;
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case TYPE_CONST_STRING:
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return &ffi_type_pointer;
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case TYPE_BOOL:
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signed_p = 0;
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if (sizeof(bool) == sizeof(char)) {
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return rb_ffi_type_of(char);
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} else if (sizeof(bool) == sizeof(short)) {
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return rb_ffi_type_of(short);
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} else if (sizeof(bool) == sizeof(int)) {
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return rb_ffi_type_of(int);
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} else if (sizeof(bool) == sizeof(long)) {
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return rb_ffi_type_of(long);
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} else {
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rb_raise(rb_eNotImpError, "bool isn't supported: %u",
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(unsigned int)sizeof(bool));
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}
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default:
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rb_raise(rb_eRuntimeError, "unknown type %d", type);
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}
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return &ffi_type_pointer;
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}
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ffi_type *
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int_to_ffi_type(int type)
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{
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return rb_fiddle_int_to_ffi_type(type);
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}
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void
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rb_fiddle_value_to_generic(int type, VALUE *src, fiddle_generic *dst)
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{
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switch (type) {
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case TYPE_VOID:
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break;
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case TYPE_VOIDP:
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dst->pointer = NUM2PTR(rb_Integer(*src));
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break;
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case TYPE_CHAR:
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if (RB_TYPE_P(*src, RUBY_T_STRING) && RSTRING_LEN(*src) == 1) {
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dst->schar = RSTRING_PTR(*src)[0];
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} else {
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dst->schar = (signed char)NUM2INT(*src);
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}
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break;
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case TYPE_UCHAR:
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dst->uchar = (unsigned char)NUM2UINT(*src);
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break;
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case TYPE_SHORT:
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dst->sshort = (unsigned short)NUM2INT(*src);
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break;
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case TYPE_USHORT:
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dst->sshort = (signed short)NUM2UINT(*src);
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break;
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case TYPE_INT:
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dst->sint = NUM2INT(*src);
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break;
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case TYPE_UINT:
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dst->uint = NUM2UINT(*src);
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break;
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case TYPE_LONG:
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dst->slong = NUM2LONG(*src);
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break;
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case TYPE_ULONG:
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dst->ulong = NUM2ULONG(*src);
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break;
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#if HAVE_LONG_LONG
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case TYPE_LONG_LONG:
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dst->slong_long = NUM2LL(*src);
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break;
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case TYPE_ULONG_LONG:
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dst->ulong_long = NUM2ULL(*src);
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break;
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#endif
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case TYPE_FLOAT:
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dst->ffloat = (float)NUM2DBL(*src);
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break;
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case TYPE_DOUBLE:
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dst->ddouble = NUM2DBL(*src);
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break;
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case TYPE_CONST_STRING:
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if (NIL_P(*src)) {
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dst->pointer = NULL;
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}
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else {
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dst->pointer = rb_string_value_cstr(src);
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}
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break;
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case TYPE_BOOL:
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if (sizeof(bool) == sizeof(char)) {
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dst->uchar = RB_TEST(*src);
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} else if (sizeof(bool) == sizeof(short)) {
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dst->ushort = RB_TEST(*src);
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} else if (sizeof(bool) == sizeof(int)) {
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dst->uint = RB_TEST(*src);
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} else if (sizeof(bool) == sizeof(long)) {
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dst->ulong = RB_TEST(*src);
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} else {
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rb_raise(rb_eNotImpError, "bool isn't supported: %u",
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(unsigned int)sizeof(bool));
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}
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break;
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default:
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rb_raise(rb_eRuntimeError, "unknown type %d", type);
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break;
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}
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}
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void
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value_to_generic(int type, VALUE src, fiddle_generic *dst)
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{
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/* src isn't safe from GC when type is TYPE_CONST_STRING and src
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* isn't String. */
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rb_fiddle_value_to_generic(type, &src, dst);
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}
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VALUE
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rb_fiddle_generic_to_value(VALUE rettype, fiddle_generic retval)
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{
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int type = NUM2INT(rettype);
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VALUE cPointer;
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cPointer = rb_const_get(mFiddle, rb_intern("Pointer"));
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switch (type) {
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case TYPE_VOID:
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return Qnil;
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case TYPE_VOIDP:
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return rb_funcall(cPointer, rb_intern("[]"), 1,
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PTR2NUM((void *)retval.pointer));
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case TYPE_CHAR:
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return INT2NUM((signed char)retval.fffi_sarg);
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case TYPE_UCHAR:
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return INT2NUM((unsigned char)retval.fffi_arg);
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case TYPE_SHORT:
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return INT2NUM((signed short)retval.fffi_sarg);
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case TYPE_USHORT:
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return INT2NUM((unsigned short)retval.fffi_arg);
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case TYPE_INT:
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return INT2NUM((signed int)retval.fffi_sarg);
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case TYPE_UINT:
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return UINT2NUM((unsigned int)retval.fffi_arg);
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case TYPE_LONG:
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return LONG2NUM(retval.slong);
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case TYPE_ULONG:
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return ULONG2NUM(retval.ulong);
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#if HAVE_LONG_LONG
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case TYPE_LONG_LONG:
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return LL2NUM(retval.slong_long);
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case TYPE_ULONG_LONG:
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return ULL2NUM(retval.ulong_long);
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#endif
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case TYPE_FLOAT:
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return rb_float_new(retval.ffloat);
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case TYPE_DOUBLE:
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return rb_float_new(retval.ddouble);
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case TYPE_CONST_STRING:
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if (retval.pointer) {
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return rb_str_new_cstr(retval.pointer);
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}
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else {
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return Qnil;
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}
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case TYPE_BOOL:
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if (sizeof(bool) == sizeof(char)) {
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return CBOOL2RBBOOL((unsigned char)retval.fffi_arg);
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} else if (sizeof(bool) == sizeof(short)) {
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return CBOOL2RBBOOL((unsigned short)retval.fffi_arg);
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} else if (sizeof(bool) == sizeof(int)) {
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return CBOOL2RBBOOL((unsigned int)retval.fffi_arg);
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} else if (sizeof(bool) == sizeof(long)) {
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return CBOOL2RBBOOL(retval.ulong);
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} else {
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rb_raise(rb_eNotImpError, "bool isn't supported: %u",
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(unsigned int)sizeof(bool));
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}
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default:
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rb_raise(rb_eRuntimeError, "unknown type %d", type);
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}
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UNREACHABLE;
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}
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VALUE
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generic_to_value(VALUE rettype, fiddle_generic retval)
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{
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return rb_fiddle_generic_to_value(rettype, retval);
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}
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/* vim: set noet sw=4 sts=4 */
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