libmemif: clean up typos

[vpp.git] / extras / libmemif / examples / icmp_responder / main.c

diff --git a/extras/libmemif/examples/icmp_responder/main.c b/extras/libmemif/examples/icmp_responder/main.c
index fa7bcb9..5175123 100644 (file)
--- a/extras/libmemif/examples/icmp_responder/main.c
+++ b/extras/libmemif/examples/icmp_responder/main.c
@@ -193,7 +193,7 @@ int
 icmpr_memif_delete ()
 {
   int err;
-  /* disconenct then delete memif connection */
+  /* disconnect then delete memif connection */
   err = memif_delete (&(&memif_connection)->conn);
   if (err != MEMIF_ERR_SUCCESS)
     INFO ("memif_delete: %s", memif_strerror (err));
@@ -224,7 +224,7 @@ icmpr_buffer_alloc (long n, uint16_t qid)
   memif_connection_t *c = &memif_connection;
   int err;
   uint16_t r;
-  /* set data pointer to shared memory and set buffer_len to shared mmeory buffer len */
+  /* set data pointer to shared memory and set buffer_len to shared memory buffer len */
   err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, n, &r, 0);
   if (err != MEMIF_ERR_SUCCESS)
     {
@@ -311,13 +311,16 @@ on_interrupt (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
                      &(c->tx_bufs + i)->len, c->ip_addr);
     }
 
-  uint16_t fb;
   /* mark memif buffers and shared memory buffers as free */
   err = memif_refill_queue (c->conn, qid, rx, 0);
-  c->rx_buf_num -= fb;
+  /*
+   * In this example we can assert that c->conn points to valid connection
+   * and 'rx <= c->rx_buf_num'.
+   */
+  c->rx_buf_num -= rx;
 
   DBG ("freed %d buffers. %u/%u alloc/free buffers",
-       fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
+       rx, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
 
   icmpr_tx_burst (c->tx_qid);
 
@@ -327,9 +330,9 @@ error:
   err = memif_refill_queue (c->conn, qid, rx, 0);
   if (err != MEMIF_ERR_SUCCESS)
     INFO ("memif_buffer_free: %s", memif_strerror (err));
-  c->rx_buf_num -= fb;
+  c->rx_buf_num -= rx;
   DBG ("freed %d buffers. %u/%u alloc/free buffers",
-       fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
+       rx, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
   return 0;
 }
 
@@ -338,7 +341,6 @@ icmpr_memif_create (int is_master)
 {
   /* setting memif connection arguments */
   memif_conn_args_t args;
-  int fd = -1;
   memset (&args, 0, sizeof (args));
   args.is_master = is_master;
   args.log2_ring_size = 10;