commit fd504b62899bb8d5d01a2f064ccd368fe7aa6297
author Alexandre Julliard <julliard@winehq.org> Mon Nov 23 17:09:08 2009 +0100
committer Alexandre Julliard <julliard@winehq.org> Mon Nov 23 17:10:28 2009 +0100
tree 50f1d12c1f61cf87a92e40108ec71d402ce973db
parent 028bca4cc5f8f1f4130a448c795e9e4e0d15eb16

server: Implement the special file sharing rules for memory mappings.

server/mapping.c

diff --git a/server/mapping.c b/server/mapping.c
index 1f60e88..d8bc527 100644
--- a/server/mapping.c
+++ b/server/mapping.c
@@ -457,6 +457,8 @@
 
     if (handle)
     {
+        unsigned int mapping_access = 0;
+
         if (!(protect & VPROT_COMMITTED))
         {
             set_error( STATUS_INVALID_PARAMETER );
@@ -464,7 +466,13 @@
         }
         if (!(file = get_file_obj( current->process, handle, access ))) goto error;
         fd = get_obj_fd( (struct object *)file );
-        mapping->fd = dup_fd_object( fd );
+
+        /* file sharing rules for mappings are different so we use magic the access rights */
+        if (protect & VPROT_IMAGE) mapping_access |= FILE_MAPPING_IMAGE;
+        else if (protect & VPROT_WRITE) mapping_access |= FILE_MAPPING_WRITE;
+        mapping->fd = dup_fd_object( fd, mapping_access,
+                                     FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+                                     FILE_SYNCHRONOUS_IO_NONALERT );
         release_object( file );
         release_object( fd );
         if (!mapping->fd) goto error;