split internal.h into files

One day, I could not resist the way it was written.  I finally started
to make the code clean.  This changeset is the beginning of a series of
housekeeping commits.  It is a simple refactoring; split internal.h into
files, so that we can divide and concur in the upcoming commits.  No
lines of codes are either added or removed, except the obvious file
headers/footers.  The generated binary is identical to the one before.

1 files changed, 79 insertions, 0 deletions

diff --git a/internal/gc.h b/internal/gc.h
new file mode 100644
index 0000000000..cf59eaed0b
--- /dev/null
+++ b/internal/gc.h
@@ -0,0 +1,79 @@
+#ifndef INTERNAL_GC_H /* -*- C -*- */
+#define INTERNAL_GC_H
+/**
+ * @file
+ * @brief      Internal header for GC.
+ * @author     \@shyouhei
+ * @copyright  This  file  is   a  part  of  the   programming  language  Ruby.
+ *             Permission  is hereby  granted,  to  either redistribute  and/or
+ *             modify this file, provided that  the conditions mentioned in the
+ *             file COPYING are met.  Consult the file for details.
+ */
+
+/* gc.c */
+extern VALUE *ruby_initial_gc_stress_ptr;
+extern int ruby_disable_gc;
+void *ruby_mimmalloc(size_t size) RUBY_ATTR_MALLOC;
+void ruby_mimfree(void *ptr);
+void rb_objspace_set_event_hook(const rb_event_flag_t event);
+#if USE_RGENGC
+void rb_gc_writebarrier_remember(VALUE obj);
+#else
+#define rb_gc_writebarrier_remember(obj) 0
+#endif
+void ruby_gc_set_params(void);
+void rb_copy_wb_protected_attribute(VALUE dest, VALUE obj);
+
+#if defined(HAVE_MALLOC_USABLE_SIZE) || defined(HAVE_MALLOC_SIZE) || defined(_WIN32)
+#define ruby_sized_xrealloc(ptr, new_size, old_size) ruby_xrealloc(ptr, new_size)
+#define ruby_sized_xrealloc2(ptr, new_count, element_size, old_count) ruby_xrealloc2(ptr, new_count, element_size)
+#define ruby_sized_xfree(ptr, size) ruby_xfree(ptr)
+#define SIZED_REALLOC_N(var,type,n,old_n) REALLOC_N(var, type, n)
+#else
+RUBY_SYMBOL_EXPORT_BEGIN
+void *ruby_sized_xrealloc(void *ptr, size_t new_size, size_t old_size) RUBY_ATTR_RETURNS_NONNULL RUBY_ATTR_ALLOC_SIZE((2));
+void *ruby_sized_xrealloc2(void *ptr, size_t new_count, size_t element_size, size_t old_count) RUBY_ATTR_RETURNS_NONNULL RUBY_ATTR_ALLOC_SIZE((2, 3));
+void ruby_sized_xfree(void *x, size_t size);
+RUBY_SYMBOL_EXPORT_END
+#define SIZED_REALLOC_N(var,type,n,old_n) ((var)=(type*)ruby_sized_xrealloc2((void*)(var), (n), sizeof(type), (old_n)))
+#endif
+
+/* optimized version of NEWOBJ() */
+#undef NEWOBJF_OF
+#undef RB_NEWOBJ_OF
+#define RB_NEWOBJ_OF(obj,type,klass,flags) \
+  type *(obj) = (type*)(((flags) & FL_WB_PROTECTED) ? \
+                        rb_wb_protected_newobj_of(klass, (flags) & ~FL_WB_PROTECTED) : \
+                        rb_wb_unprotected_newobj_of(klass, flags))
+#define NEWOBJ_OF(obj,type,klass,flags) RB_NEWOBJ_OF(obj,type,klass,flags)
+
+#ifdef __has_attribute
+#if __has_attribute(alloc_align)
+__attribute__((__alloc_align__(1)))
+#endif
+#endif
+void *rb_aligned_malloc(size_t, size_t) RUBY_ATTR_MALLOC RUBY_ATTR_ALLOC_SIZE((2));
+
+size_t rb_size_mul_or_raise(size_t, size_t, VALUE); /* used in compile.c */
+size_t rb_size_mul_add_or_raise(size_t, size_t, size_t, VALUE); /* used in iseq.h */
+void *rb_xmalloc_mul_add(size_t, size_t, size_t) RUBY_ATTR_MALLOC;
+void *rb_xrealloc_mul_add(const void *, size_t, size_t, size_t);
+void *rb_xmalloc_mul_add_mul(size_t, size_t, size_t, size_t) RUBY_ATTR_MALLOC;
+void *rb_xcalloc_mul_add_mul(size_t, size_t, size_t, size_t) RUBY_ATTR_MALLOC;
+
+RUBY_SYMBOL_EXPORT_BEGIN
+const char *rb_objspace_data_type_name(VALUE obj);
+
+/* gc.c (export) */
+VALUE rb_wb_protected_newobj_of(VALUE, VALUE);
+VALUE rb_wb_unprotected_newobj_of(VALUE, VALUE);
+
+size_t rb_obj_memsize_of(VALUE);
+void rb_gc_verify_internal_consistency(void);
+
+#define RB_OBJ_GC_FLAGS_MAX 6
+size_t rb_obj_gc_flags(VALUE, ID[], size_t);
+void rb_gc_mark_values(long n, const VALUE *values);
+void rb_gc_mark_vm_stack_values(long n, const VALUE *values);
+RUBY_SYMBOL_EXPORT_END
+#endif /* INTERNAL_GC_H */