From: Zoltan Varga <vargaz@gmail.com>
Date: Thu, 3 Mar 2005 21:09:34 +0000 (+0000)
Subject: 2005-03-03  Zoltan Varga  <vargaz@freemail.hu>
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9b40e5dd6f5d78b8b5ba7b6563141032a6ebc2e2;p=gc

2005-03-03  Zoltan Varga  <vargaz@freemail.hu>

	* include/gc.h pthread_support.c win32_threads.: Add
	GC_thread_is_registered API function.

svn path=/trunk/mono/; revision=41410
---

diff --git a/ChangeLog b/ChangeLog
index 4b6d7ef4..9f0c7bdc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2005-03-03  Zoltan Varga  <vargaz@freemail.hu>
+
+	* include/gc.h pthread_support.c win32_threads.: Add 
+	GC_thread_is_registered API function.
+
 2005-02-17  Raja R Harinath  <rharinath@novell.com>
 
 	* acinclude.m4: Don't include distributed libtool.m4.
diff --git a/include/gc.h b/include/gc.h
index a60a6560..970c5b5b 100644
--- a/include/gc.h
+++ b/include/gc.h
@@ -827,6 +827,9 @@ GC_API GC_PTR GC_is_visible GC_PROTO((GC_PTR p));
 /* Always returns its argument.						*/
 GC_API GC_PTR GC_is_valid_displacement GC_PROTO((GC_PTR	p));
 
+/* Returns 1 if the calling thread is registered with the GC, 0 otherwise */
+GC_API int GC_thread_is_registered GC_PROTO((void));
+
 /* Safer, but slow, pointer addition.  Probably useful mainly with 	*/
 /* a preprocessor.  Useful only for heap pointers.			*/
 #ifdef GC_DEBUG
diff --git a/pthread_support.c b/pthread_support.c
index 5bb157f8..a1130ab2 100644
--- a/pthread_support.c
+++ b/pthread_support.c
@@ -400,6 +400,17 @@ GC_PTR GC_local_gcj_malloc(size_t bytes,
 
 # endif /* !THREAD_LOCAL_ALLOC */
 
+int GC_thread_is_registered (void)
+{
+	void *ptr;
+
+	LOCK();
+	ptr = (void *)GC_lookup_thread(pthread_self());
+	UNLOCK();
+
+	return ptr ? 1 : 0;
+}
+
 #if 0
 /*
 To make sure that we're using LinuxThreads and not some other thread
diff --git a/win32_threads.c b/win32_threads.c
index d2e97dee..681e1c2b 100644
--- a/win32_threads.c
+++ b/win32_threads.c
@@ -72,6 +72,11 @@ volatile LONG GC_max_thread_index = 0; /* Largest index in thread_table	*/
 
 extern LONG WINAPI GC_write_fault_handler(struct _EXCEPTION_POINTERS *exc_info);
 
+int GC_thread_is_registered (void)
+{
+	return 1;
+}
+
 /*
  * This may be called from DllMain, and hence operates under unusual
  * constraints.