Handle the 0 count communications through the self module.

This commit was SVN r3017.

src/mca/ptl/self/ptl_self.c

@@ -141,6 +141,8 @@ void mca_ptl_self_matched( mca_ptl_base_module_t* ptl,
         frag->frag_base.frag_header.hdr_frag.hdr_src_ptr.pval;
     mca_pml_base_recv_request_t* recvreq = frag->frag_request;
 
+    if( (recvreq->req_base.req_count != 0) &&
+        (sendreq->req_send.req_base.req_count != 0) ) {
         /* Did you have the same datatype or not ? If yes we can use an optimized version
          * for the copy function, if not we have to use a temporary buffer to pack/unpack
          * 
@@ -150,8 +152,7 @@ void mca_ptl_self_matched( mca_ptl_base_module_t* ptl,
          */
         if( sendreq->req_send.req_base.req_datatype == recvreq->req_base.req_datatype &&
             sendreq->req_send.req_send_mode != MCA_PML_BASE_SEND_BUFFERED) {
-        ompi_ddt_copy_content_same_ddt( 
-            recvreq->req_base.req_datatype, 
+            ompi_ddt_copy_content_same_ddt( recvreq->req_base.req_datatype, 
                                             recvreq->req_base.req_count,
                                             recvreq->req_base.req_addr, 
                                             sendreq->req_send.req_base.req_addr );
@@ -166,8 +167,7 @@ void mca_ptl_self_matched( mca_ptl_base_module_t* ptl,
             length = 64 * 1024;
             buf = malloc( length * sizeof(char) );
             
-        ompi_convertor_init_for_recv( 
-            &frag->frag_base.frag_convertor, 
+            ompi_convertor_init_for_recv( &frag->frag_base.frag_convertor, 
                                           0, 
                                           recvreq->req_base.req_datatype, 
                                           recvreq->req_base.req_count, 
@@ -190,7 +190,9 @@ void mca_ptl_self_matched( mca_ptl_base_module_t* ptl,
             }
             free( buf );
         }
-    ptl->ptl_send_progress( ptl, &sendreq->req_send, sendreq->req_send.req_bytes_packed );
+    }
+    ptl->ptl_send_progress( ptl, &sendreq->req_send,
+                            sendreq->req_send.req_bytes_packed );
     ptl->ptl_recv_progress( ptl, 
 			    recvreq, 
 			    frag->frag_base.frag_header.hdr_frag.hdr_frag_length,