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Diffstat (limited to 'ruby_1_9_3/ext/fiddle/closure.c')
-rw-r--r--ruby_1_9_3/ext/fiddle/closure.c307
1 files changed, 0 insertions, 307 deletions
diff --git a/ruby_1_9_3/ext/fiddle/closure.c b/ruby_1_9_3/ext/fiddle/closure.c
deleted file mode 100644
index 21796660c4..0000000000
--- a/ruby_1_9_3/ext/fiddle/closure.c
+++ /dev/null
@@ -1,307 +0,0 @@
-#include <fiddle.h>
-
-VALUE cFiddleClosure;
-
-typedef struct {
- void * code;
- ffi_closure *pcl;
- ffi_cif cif;
- int argc;
- ffi_type **argv;
-} fiddle_closure;
-
-#if defined(MACOSX) || defined(__linux) || defined(__OpenBSD__)
-#define DONT_USE_FFI_CLOSURE_ALLOC
-#endif
-
-static void
-dealloc(void * ptr)
-{
- fiddle_closure * cls = (fiddle_closure *)ptr;
-#ifndef DONT_USE_FFI_CLOSURE_ALLOC
- ffi_closure_free(cls->pcl);
-#else
- munmap(cls->pcl, sizeof(cls->pcl));
-#endif
- if (cls->argv) xfree(cls->argv);
- xfree(cls);
-}
-
-static size_t
-closure_memsize(const void * ptr)
-{
- fiddle_closure * cls = (fiddle_closure *)ptr;
- size_t size = 0;
-
- if (ptr) {
- size += sizeof(*cls);
-#if !defined(FFI_NO_RAW_API) || !FFI_NO_RAW_API
- size += ffi_raw_size(&cls->cif);
-#endif
- size += sizeof(*cls->argv);
- size += sizeof(ffi_closure);
- }
- return size;
-}
-
-const rb_data_type_t closure_data_type = {
- "fiddle/closure",
- {0, dealloc, closure_memsize,},
-};
-
-void
-callback(ffi_cif *cif, void *resp, void **args, void *ctx)
-{
- VALUE self = (VALUE)ctx;
- VALUE rbargs = rb_iv_get(self, "@args");
- VALUE ctype = rb_iv_get(self, "@ctype");
- int argc = RARRAY_LENINT(rbargs);
- VALUE params = rb_ary_tmp_new(argc);
- VALUE ret;
- VALUE cPointer;
- int i, type;
-
- cPointer = rb_const_get(mFiddle, rb_intern("Pointer"));
-
- for (i = 0; i < argc; i++) {
- type = NUM2INT(RARRAY_PTR(rbargs)[i]);
- switch (type) {
- case TYPE_VOID:
- argc = 0;
- break;
- case TYPE_INT:
- rb_ary_push(params, INT2NUM(*(int *)args[i]));
- break;
- case -TYPE_INT:
- rb_ary_push(params, UINT2NUM(*(unsigned int *)args[i]));
- break;
- case TYPE_VOIDP:
- rb_ary_push(params,
- rb_funcall(cPointer, rb_intern("[]"), 1,
- PTR2NUM(*(void **)args[i])));
- break;
- case TYPE_LONG:
- rb_ary_push(params, LONG2NUM(*(long *)args[i]));
- break;
- case -TYPE_LONG:
- rb_ary_push(params, ULONG2NUM(*(unsigned long *)args[i]));
- break;
- case TYPE_CHAR:
- rb_ary_push(params, INT2NUM(*(signed char *)args[i]));
- break;
- case -TYPE_CHAR:
- rb_ary_push(params, UINT2NUM(*(unsigned char *)args[i]));
- break;
- case TYPE_SHORT:
- rb_ary_push(params, INT2NUM(*(signed short *)args[i]));
- break;
- case -TYPE_SHORT:
- rb_ary_push(params, UINT2NUM(*(unsigned short *)args[i]));
- break;
- case TYPE_DOUBLE:
- rb_ary_push(params, rb_float_new(*(double *)args[i]));
- break;
- case TYPE_FLOAT:
- rb_ary_push(params, rb_float_new(*(float *)args[i]));
- break;
-#if HAVE_LONG_LONG
- case TYPE_LONG_LONG:
- rb_ary_push(params, LL2NUM(*(LONG_LONG *)args[i]));
- break;
- case -TYPE_LONG_LONG:
- rb_ary_push(params, ULL2NUM(*(unsigned LONG_LONG *)args[i]));
- break;
-#endif
- default:
- rb_raise(rb_eRuntimeError, "closure args: %d", type);
- }
- }
-
- ret = rb_funcall2(self, rb_intern("call"), argc, RARRAY_PTR(params));
- RB_GC_GUARD(params);
-
- type = NUM2INT(ctype);
- switch (type) {
- case TYPE_VOID:
- break;
- case TYPE_LONG:
- *(long *)resp = NUM2LONG(ret);
- break;
- case -TYPE_LONG:
- *(unsigned long *)resp = NUM2ULONG(ret);
- break;
- case TYPE_CHAR:
- case TYPE_SHORT:
- case TYPE_INT:
- *(ffi_sarg *)resp = NUM2INT(ret);
- break;
- case -TYPE_CHAR:
- case -TYPE_SHORT:
- case -TYPE_INT:
- *(ffi_arg *)resp = NUM2UINT(ret);
- break;
- case TYPE_VOIDP:
- *(void **)resp = NUM2PTR(ret);
- break;
- case TYPE_DOUBLE:
- *(double *)resp = NUM2DBL(ret);
- break;
- case TYPE_FLOAT:
- *(float *)resp = (float)NUM2DBL(ret);
- break;
-#if HAVE_LONG_LONG
- case TYPE_LONG_LONG:
- *(LONG_LONG *)resp = NUM2LL(ret);
- break;
- case -TYPE_LONG_LONG:
- *(unsigned LONG_LONG *)resp = NUM2ULL(ret);
- break;
-#endif
- default:
- rb_raise(rb_eRuntimeError, "closure retval: %d", type);
- }
-}
-
-static VALUE
-allocate(VALUE klass)
-{
- fiddle_closure * closure;
-
- VALUE i = TypedData_Make_Struct(klass, fiddle_closure,
- &closure_data_type, closure);
-
-#ifndef DONT_USE_FFI_CLOSURE_ALLOC
- closure->pcl = ffi_closure_alloc(sizeof(ffi_closure), &closure->code);
-#else
- closure->pcl = mmap(NULL, sizeof(ffi_closure), PROT_READ | PROT_WRITE,
- MAP_ANON | MAP_PRIVATE, -1, 0);
-#endif
-
- return i;
-}
-
-static VALUE
-initialize(int rbargc, VALUE argv[], VALUE self)
-{
- VALUE ret;
- VALUE args;
- VALUE abi;
- fiddle_closure * cl;
- ffi_cif * cif;
- ffi_closure *pcl;
- ffi_status result;
- int i, argc;
-
- if (2 == rb_scan_args(rbargc, argv, "21", &ret, &args, &abi))
- abi = INT2NUM(FFI_DEFAULT_ABI);
-
- Check_Type(args, T_ARRAY);
-
- argc = RARRAY_LENINT(args);
-
- TypedData_Get_Struct(self, fiddle_closure, &closure_data_type, cl);
-
- cl->argv = (ffi_type **)xcalloc(argc + 1, sizeof(ffi_type *));
-
- for (i = 0; i < argc; i++) {
- int type = NUM2INT(RARRAY_PTR(args)[i]);
- cl->argv[i] = INT2FFI_TYPE(type);
- }
- cl->argv[argc] = NULL;
-
- rb_iv_set(self, "@ctype", ret);
- rb_iv_set(self, "@args", args);
-
- cif = &cl->cif;
- pcl = cl->pcl;
-
- result = ffi_prep_cif(cif, NUM2INT(abi), argc,
- INT2FFI_TYPE(NUM2INT(ret)),
- cl->argv);
-
- if (FFI_OK != result)
- rb_raise(rb_eRuntimeError, "error prepping CIF %d", result);
-
-#ifndef DONT_USE_FFI_CLOSURE_ALLOC
- result = ffi_prep_closure_loc(pcl, cif, callback,
- (void *)self, cl->code);
-#else
- result = ffi_prep_closure(pcl, cif, callback, (void *)self);
- cl->code = (void *)pcl;
- mprotect(pcl, sizeof(pcl), PROT_READ | PROT_EXEC);
-#endif
-
- if (FFI_OK != result)
- rb_raise(rb_eRuntimeError, "error prepping closure %d", result);
-
- return self;
-}
-
-static VALUE
-to_i(VALUE self)
-{
- fiddle_closure * cl;
- void *code;
-
- TypedData_Get_Struct(self, fiddle_closure, &closure_data_type, cl);
-
- code = cl->code;
-
- return PTR2NUM(code);
-}
-
-void
-Init_fiddle_closure()
-{
-#if 0
- mFiddle = rb_define_module("Fiddle"); /* let rdoc know about mFiddle */
-#endif
-
- /*
- * Document-class: Fiddle::Closure
- *
- * == Description
- *
- * An FFI closure wrapper, for handling callbacks.
- *
- * == Example
- *
- * closure = Class.new(Fiddle::Closure) {
- * def call
- * 10
- * end
- * }.new(Fiddle::TYPE_INT, [])
- * => #<#<Class:0x0000000150d308>:0x0000000150d240>
- * func = Fiddle::Function.new(closure, [], Fiddle::TYPE_INT)
- * => #<Fiddle::Function:0x00000001516e58>
- * func.call
- * => 10
- */
- cFiddleClosure = rb_define_class_under(mFiddle, "Closure", rb_cObject);
-
- rb_define_alloc_func(cFiddleClosure, allocate);
-
- /*
- * Document-method: new
- *
- * call-seq: new(ret, args, abi = Fiddle::DEFAULT)
- *
- * Construct a new Closure object.
- *
- * * +ret+ is the C type to be returned
- * * +args+ are passed the callback
- * * +abi+ is the abi of the closure
- *
- * If there is an error in preparing the ffi_cif or ffi_prep_closure,
- * then a RuntimeError will be raised.
- */
- rb_define_method(cFiddleClosure, "initialize", initialize, -1);
-
- /*
- * Document-method: to_i
- *
- * Returns the memory address for this closure
- */
- rb_define_method(cFiddleClosure, "to_i", to_i, 0);
-}
-/* vim: set noet sw=4 sts=4 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-18 20:39:35 +0000