Changeset 683 for trunk/kernel/libk/remote_fifo.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/libk/remote_fifo.c (modified) (6 diffs)

trunk/kernel/libk/remote_fifo.c

@@ -42 +42 @@
         fifo->wr_id     = 0;
         fifo->rd_id     = 0;
-    for( slot = 0 ; slot < CONFIG_REMOTE_FIFO_SLOTS ; slot++ )
+    for( slot = 0 ; slot < CONFIG_RPC_FIFO_SLOTS ; slot++ )
     {
         fifo->valid[slot] = 0;
@@ -69 +69 @@
 
     // wait until allocated slot is empty in remote FIFO
-    // max retry = CONFIG_REMOTE_FIFO_MAX_ITERATIONS  
+    // max retry = CONFIG_RPC_FIFO_MAX_ITERATIONS  
     // return error if watchdog is reached
     while( 1 )
     {
         // return error if contention detected by watchdog
-        if( watchdog > CONFIG_REMOTE_FIFO_MAX_ITERATIONS )  return EBUSY;
+        if( watchdog > CONFIG_RPC_FIFO_MAX_ITERATIONS )  return EBUSY;
 
         // read remote rd_id value
@@ -84 +84 @@
 
         // exit waiting loop as soon as fifo not full
-        if ( nslots < CONFIG_REMOTE_FIFO_SLOTS )  break;
+        if ( nslots < CONFIG_RPC_FIFO_SLOTS )  break;
         
         // retry later if fifo full:
@@ -97 +97 @@
 
     // compute actual write slot pointer
-    ptw = wr_id % CONFIG_REMOTE_FIFO_SLOTS;
+    ptw = wr_id % CONFIG_RPC_FIFO_SLOTS;
 
     // copy item to fifo
@@ -123 +123 @@
         
     // compute actual read slot pointer 
-        uint32_t ptr = rd_id % CONFIG_REMOTE_FIFO_SLOTS;
+        uint32_t ptr = rd_id % CONFIG_RPC_FIFO_SLOTS;
         
         // wait slot filled by the writer
@@ -158 +158 @@
     else                 nslots = (0xFFFFFFFF - rd_id) + wr_id;
 
-    return ( nslots >= CONFIG_REMOTE_FIFO_SLOTS );
+    return ( nslots >= CONFIG_RPC_FIFO_SLOTS );
 }