Mon Mar 25 13:04:56 CET 2002 Paolo Molaro <lupus@ximian.com>

[mono.git] / mono / metadata / rawbuffer.c

diff --git a/mono/metadata/rawbuffer.c b/mono/metadata/rawbuffer.c
index 833721accbe2db94e9ed7d1d5dff3d6b59afb85a..b8d75b97a57d931c029e20b26398245a9d2aabb3 100644 (file)
--- a/mono/metadata/rawbuffer.c
+++ b/mono/metadata/rawbuffer.c
@@ -124,8 +124,10 @@ mono_raw_buffer_load_mmap (int fd, int is_writable, guint32 base, size_t size)
 
        if (is_writable){
                prot |= PROT_WRITE;
+               flags = MAP_SHARED;
+       } else {
+               flags = MAP_PRIVATE;
        }
-       flags = MAP_PRIVATE;
 
        ptr = mmap (0, end - start, prot, flags, fd, start);
 
@@ -156,6 +158,16 @@ mono_raw_buffer_free_mmap (void *base)
 #endif
 }
 
+static void
+mono_raw_buffer_update_mmap (void *base, size_t size)
+{
+#ifdef USE_WIN32_API
+       FlushViewOfFile (base, size);
+#else
+       msync (base, size, MS_SYNC);
+#endif
+}
+
 void *
 mono_raw_buffer_load (int fd, int is_writable, guint32 base, size_t size)
 {
@@ -168,6 +180,17 @@ mono_raw_buffer_load (int fd, int is_writable, guint32 base, size_t size)
        return ptr;
 }
 
+void
+mono_raw_buffer_update (void *buffer, size_t size)
+{
+       char *mmap_base;
+
+       mmap_base = GINT_TO_POINTER (ROUND_DOWN (GPOINTER_TO_INT (buffer), alignment));
+       
+       if (mmap_map && g_hash_table_lookup (mmap_map, mmap_base))
+               mono_raw_buffer_update_mmap (mmap_base, size);
+}
+
 void
 mono_raw_buffer_free (void *buffer)
 {