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Rearranged the code a bit to store a global reference to the Ruby hash table delete method, thereby making it possible to look it up once instead of each time SWIG_RubyRemoveTracking is called.

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git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@8339 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
Charlie Savage 2006-01-10 00:30:43 +00:00
commit 0e2a4d4156
1 changed files with 13 additions and 6 deletions
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19
SWIG/Lib/ruby/rubytracking.swg
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@ -17,6 +17,10 @@ extern "C" {
structs to Ruby Objects. */ structs to Ruby Objects. */
static VALUE swig_ruby_trackings; static VALUE swig_ruby_trackings;
/* Global variable that stores a reference to the ruby
hash table delete function. */
static ID swig_ruby_hash_delete = 0;
/* Setup a Ruby hash table to store Trackings */ /* Setup a Ruby hash table to store Trackings */
SWIGRUNTIME void SWIG_RubyInitializeTrackings() { SWIGRUNTIME void SWIG_RubyInitializeTrackings() {
/* Create a ruby hash table to store Trackings from C++ /* Create a ruby hash table to store Trackings from C++
@ -24,6 +28,10 @@ SWIGRUNTIME void SWIG_RubyInitializeTrackings() {
the garabage collector about the hash table. */ the garabage collector about the hash table. */
swig_ruby_trackings = rb_hash_new(); swig_ruby_trackings = rb_hash_new();
rb_gc_register_address(&swig_ruby_trackings); rb_gc_register_address(&swig_ruby_trackings);
/* Now store a reference to the hash table delete function
so that we only have to look it up once.*/
swig_ruby_hash_delete = rb_intern("delete");
} }
/* Get a Ruby number to reference a pointer */ /* Get a Ruby number to reference a pointer */
@ -95,18 +103,17 @@ SWIGRUNTIME VALUE SWIG_RubyInstanceFor(void* ptr) {
} }
} }
/* Remove a Tracking from a C/C++ struct to a Ruby object */ /* Remove a Tracking from a C/C++ struct to a Ruby object. It
is very important to remove objects once they are destroyed
since the same memory address may be reused later to create
a new object. */
SWIGRUNTIME void SWIG_RubyRemoveTracking(void* ptr) { SWIGRUNTIME void SWIG_RubyRemoveTracking(void* ptr) {
/* Get a reference to the pointer as a Ruby number */ /* Get a reference to the pointer as a Ruby number */
VALUE key = SWIG_RubyPtrToReference(ptr); VALUE key = SWIG_RubyPtrToReference(ptr);
/* Define delete method - in C++ this could be marked as
static but unfortunately not in C. */
VALUE delete_function = rb_intern("delete");
/* Delete the object from the hash table by calling Ruby's /* Delete the object from the hash table by calling Ruby's
do this we need to call the Hash.delete method.*/ do this we need to call the Hash.delete method.*/
rb_funcall(swig_ruby_trackings, delete_function, 1, key); rb_funcall(swig_ruby_trackings, swig_ruby_hash_delete, 1, key);
} }
/* This is a helper method that unlinks a Ruby object from its /* This is a helper method that unlinks a Ruby object from its