Changeset 683 for trunk/kernel/devices/dev_fbf.c

Timestamp:

Jan 13, 2021, 12:36:17 AM (3 years ago)

Author:

alain

Message:

All modifications required to support the <tcp_chat> application
including error recovery in case of packet loss.A

File:

• trunk/kernel/devices/dev_fbf.c (modified) (6 diffs)

trunk/kernel/devices/dev_fbf.c

@@ -159 +159 @@
                                 intptr_t * user_buffer )
 {
-    kmem_req_t     req;
     fbf_window_t * window;      // window descriptor (created in local cluster)
     vseg_t       * vseg;        // vseg descriptor (created in reference cluster)
@@ -202 +201 @@
  
     // allocate memory for the window descriptor in local cluster
-    req.type   = KMEM_KCM;
-    req.order  = bits_log2( sizeof(fbf_window_t) );
-    req.flags  = AF_ZERO | AF_KERNEL;
-    window     = kmem_alloc( &req );
+    window  = kmem_alloc( bits_log2(sizeof(fbf_window_t)) , AF_ZERO );
 
     if( window == NULL )
@@ -256 +252 @@
         printk("\n[ERROR] in %s / thread[%x,%x] cannot create vseg in reference cluster\n",
         __FUNCTION__, process->pid, this->trdid );
-        req.ptr = (void *)window;
-        kmem_free( &req );
+        kmem_free( window , bits_log2(sizeof(fbf_window_t)) );
         return -1;
     }
@@ -281 +276 @@
         printk("\n[ERROR] in %s / thread[%x,%x] cannot allocate buffer for window\n",
         __FUNCTION__, process->pid, this->trdid );
-        req.ptr = (void *)window;
-        kmem_free( &req );
+        kmem_free( window , bits_log2(sizeof(fbf_window_t)) );
         vmm_remove_vseg( process , vseg );
         return -1;
@@ -521 +515 @@
 error_t dev_fbf_delete_window( uint32_t  wid )
 {
-    kmem_req_t     req;
-
     thread_t  * this    = CURRENT_THREAD;
     process_t * process = this->process;
@@ -581 +573 @@
  
     // 8. release memory allocated for window descriptor
-    req.type = KMEM_KCM;
-    req.ptr  = window_ptr;
-    kmem_remote_free( window_cxy , &req );
+    kmem_remote_free( window_cxy , window_ptr , bits_log2(sizeof(fbf_window_t)) );
 
     // 9. release the associated vseg