diff options
Diffstat (limited to 'ext/fiddle/fiddle.c')
| -rw-r--r-- | ext/fiddle/fiddle.c | 77 |
1 files changed, 63 insertions, 14 deletions
diff --git a/ext/fiddle/fiddle.c b/ext/fiddle/fiddle.c index acc1cd0837..f420d9fa3b 100644 --- a/ext/fiddle/fiddle.c +++ b/ext/fiddle/fiddle.c @@ -1,3 +1,5 @@ +#include <stdbool.h> + #include <fiddle.h> VALUE mFiddle; @@ -58,18 +60,16 @@ rb_fiddle_free(VALUE self, VALUE addr) /* * call-seq: Fiddle.dlunwrap(addr) * - * Returns the hexadecimal representation of a memory pointer address +addr+ + * Returns the Ruby object stored at the memory address +addr+ * * Example: * - * lib = Fiddle.dlopen('/lib64/libc-2.15.so') - * => #<Fiddle::Handle:0x00000001342460> - * - * lib['strcpy'].to_s(16) - * => "7f59de6dd240" - * - * Fiddle.dlunwrap(Fiddle.dlwrap(lib['strcpy'].to_s(16))) - * => "7f59de6dd240" + * x = Object.new + * # => #<Object:0x0000000107c7d870> + * Fiddle.dlwrap(x) + * # => 4425504880 + * Fiddle.dlunwrap(_) + * # => #<Object:0x0000000107c7d870> */ VALUE rb_fiddle_ptr2value(VALUE self, VALUE addr) @@ -80,15 +80,22 @@ rb_fiddle_ptr2value(VALUE self, VALUE addr) /* * call-seq: Fiddle.dlwrap(val) * - * Returns a memory pointer of a function's hexadecimal address location +val+ + * Returns the memory address of the Ruby object stored at +val+ * * Example: * - * lib = Fiddle.dlopen('/lib64/libc-2.15.so') - * => #<Fiddle::Handle:0x00000001342460> + * x = Object.new + * # => #<Object:0x0000000107c7d870> + * Fiddle.dlwrap(x) + * # => 4425504880 + * + * In the case +val+ is not a heap allocated object, this method will return + * the tagged pointer value. * - * Fiddle.dlwrap(lib['strcpy'].to_s(16)) - * => 25522520 + * Example: + * + * Fiddle.dlwrap(123) + * # => 247 */ static VALUE rb_fiddle_value2ptr(VALUE self, VALUE val) @@ -352,6 +359,12 @@ Init_fiddle(void) */ rb_define_const(mFiddleTypes, "UINTPTR_T", INT2NUM(TYPE_UINTPTR_T)); + /* Document-const: Fiddle::Types::BOOL + * + * C type - bool + */ + rb_define_const(mFiddleTypes, "BOOL" , INT2NUM(TYPE_BOOL)); + /* Document-const: ALIGN_VOIDP * * The alignment size of a void* @@ -456,6 +469,12 @@ Init_fiddle(void) */ rb_define_const(mFiddle, "ALIGN_UINTPTR_T", INT2NUM(ALIGN_OF(uintptr_t))); + /* Document-const: ALIGN_BOOL + * + * The alignment size of a bool + */ + rb_define_const(mFiddle, "ALIGN_BOOL", INT2NUM(ALIGN_OF(bool))); + /* Document-const: WINDOWS * * Returns a boolean regarding whether the host is WIN32 @@ -630,6 +649,12 @@ Init_fiddle(void) */ rb_define_const(mFiddle, "SIZEOF_CONST_STRING", INT2NUM(sizeof(const char*))); + /* Document-const: SIZEOF_BOOL + * + * size of a bool + */ + rb_define_const(mFiddle, "SIZEOF_BOOL", INT2NUM(sizeof(bool))); + /* Document-const: RUBY_FREE * * Address of the ruby_xfree() function @@ -650,6 +675,30 @@ Init_fiddle(void) rb_define_module_function(mFiddle, "realloc", rb_fiddle_realloc, 2); rb_define_module_function(mFiddle, "free", rb_fiddle_free, 1); + /* Document-const: Qtrue + * + * The value of Qtrue + */ + rb_define_const(mFiddle, "Qtrue", INT2NUM(Qtrue)); + + /* Document-const: Qfalse + * + * The value of Qfalse + */ + rb_define_const(mFiddle, "Qfalse", INT2NUM(Qfalse)); + + /* Document-const: Qnil + * + * The value of Qnil + */ + rb_define_const(mFiddle, "Qnil", INT2NUM(Qnil)); + + /* Document-const: Qundef + * + * The value of Qundef + */ + rb_define_const(mFiddle, "Qundef", INT2NUM(Qundef)); + Init_fiddle_function(); Init_fiddle_closure(); Init_fiddle_handle(); |