Changeset 666 for trunk/kernel/libk/remote_buf.c

Timestamp:

Oct 10, 2020, 5:27:12 PM (4 years ago)

Author:

alain

Message:

Cosmetic.

File:

• trunk/kernel/libk/remote_buf.c (modified) (6 diffs)

trunk/kernel/libk/remote_buf.c

@@ -31 +31 @@
 #include <remote_buf.h>
 
-///////////////////////////////////////////
-error_t remote_buf_create( xptr_t   buf_xp,
-                           uint32_t size )
+/////////////////////////////////////////
+error_t remote_buf_init( xptr_t   buf_xp,
+                         uint32_t size )
 {
     kmem_req_t     req;
@@ -42 +42 @@
 
     // allocate the data buffer
-    if( size >= CONFIG_PPM_PAGE_SIZE )
+    if( size == 0 )
+    {
+        data = NULL;
+    }
+    else if( size >= CONFIG_PPM_PAGE_SIZE )
     {
         req.type  = KMEM_PPM;
@@ -48 +52 @@
         req.flags = AF_NONE;
         data = kmem_remote_alloc( buf_cxy , &req );
+
+        if( data == NULL )  return -1;
     }
     else
@@ -55 +61 @@
         req.flags = AF_NONE;
         data = kmem_remote_alloc( buf_cxy , &req );
-    }
-
-    if( data == NULL )  return -1;
+
+        if( data == NULL )  return -1;
+    }
 
     // initialize buffer descriptor
@@ -68 +74 @@
     return 0;
 
-}  // end remote_buf_create()
+}  // end remote_buf_init()
 
 /////////////////////////////////////////
@@ -78 +84 @@
     cxy_t          buf_cxy = GET_CXY( buf_xp );
 
-    // release memory allocated to data buffer
-    if( buf_ptr->size >= CONFIG_PPM_PAGE_SIZE )
+    uint32_t size = hal_remote_l32( XPTR( buf_cxy , &buf_ptr->size ));
+
+    // release memory allocated to data buffer if required
+    if( size == 0 )
+    {
+        return;
+    }
+    else if( size >= CONFIG_PPM_PAGE_SIZE )
     {
         req.type  = KMEM_PPM;