diff options
Diffstat (limited to 'ext/fiddle')
| -rw-r--r-- | ext/fiddle/fiddle.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/ext/fiddle/fiddle.c b/ext/fiddle/fiddle.c index c06cd5634a..aee3a4b42b 100644 --- a/ext/fiddle/fiddle.c +++ b/ext/fiddle/fiddle.c @@ -58,18 +58,16 @@ 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 +78,22 @@ 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. + * + * Example: * - * Fiddle.dlwrap(lib['strcpy'].to_s(16)) - * => 25522520 + * >> Fiddle.dlwrap(123) + * => 247 */ static VALUE rb_fiddle_value2ptr(VALUE self, VALUE val) |