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libmemif: icmp-responder example buffer management fix

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Type: fix

Change-Id: Ieeb763f282ee929a121585747119f458c00056ae
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
This commit is contained in:
Jakub Grajciar
2019-06-24 10:22:12 +02:00
committed by Damjan Marion
parent 160c923f99
commit 389c82286d
1 changed files with 8 additions and 5 deletions
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13
extras/libmemif/examples/icmp_responder/main.c
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@ -290,7 +290,6 @@ on_interrupt (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
memif_connection_t *c = &memif_connection;
int err;
uint16_t rx;
uint16_t fb = 0;
/* receive data from shared memory buffers */
err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
c->rx_buf_num += rx;
@ -314,10 +313,14 @@ on_interrupt (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
/* 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;
}