From: Ivan Maidanski <ivmai@mail.ru>
Date: Wed, 1 Feb 2012 17:12:07 +0000 (+0400)
Subject: Add assertion to GC_incremental_protection_needs, refine documentation
X-Git-Tag: gc7_3alpha2~148
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d3b2bf9d373863eb85b6b2c4b48243ddfde7e8d9;p=gc

Add assertion to GC_incremental_protection_needs, refine documentation

* include/gc.h (GC_incremental_protection_needs): Improve comment.
* os_dep.c (GC_incremental_protection_needs): Add assertion on GC is
initialized.
---

diff --git a/include/gc.h b/include/gc.h
index c76e1ba4..212d175c 100644
--- a/include/gc.h
+++ b/include/gc.h
@@ -613,6 +613,7 @@ GC_API void GC_CALL GC_enable_incremental(void);
 #define GC_PROTECTS_STACK         8 /* Probably impractical.            */
 
 #define GC_PROTECTS_NONE 0
+/* The collector is assumed to be initialized before this call.         */
 GC_API int GC_CALL GC_incremental_protection_needs(void);
 
 /* Perform some garbage collection work, if appropriate.        */
diff --git a/os_dep.c b/os_dep.c
index 7cdd3bb5..c4058416 100644
--- a/os_dep.c
+++ b/os_dep.c
@@ -3364,6 +3364,8 @@ GC_INNER void GC_remove_protection(struct hblk *h, word nblocks,
 
 GC_API int GC_CALL GC_incremental_protection_needs(void)
 {
+    GC_ASSERT(GC_is_initialized);
+
     if (GC_page_size == HBLKSIZE) {
         return GC_PROTECTS_POINTER_HEAP;
     } else {