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net/usrsock: add support for CONFIG_NET_ALLOC_CONNS

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Signed-off-by: chao.an <anchao@xiaomi.com>
This commit is contained in:
chao.an 2022-01-04 16:33:03 +08:00 committed by Xiang Xiao
parent cbe9352f41
commit 4603d108be
1 changed files with 30 additions and 17 deletions
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39
net/usrsock/usrsock_conn.c
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@ -33,6 +33,7 @@
#include <arch/irq.h>
#include <nuttx/kmalloc.h>
#include <nuttx/semaphore.h>
#include <nuttx/net/netconfig.h>
#include <nuttx/net/net.h>
@ -45,7 +46,9 @@
/* The array containing all usrsock connections. */
#ifndef CONFIG_NET_ALLOC_CONNS
static struct usrsock_conn_s g_usrsock_connections[CONFIG_NET_USRSOCK_CONNS];
#endif
/* A list of all free usrsock connections */
@ -94,23 +97,36 @@ static void _usrsock_semgive(FAR sem_t *sem)
FAR struct usrsock_conn_s *usrsock_alloc(void)
{
FAR struct usrsock_conn_s *conn;
#ifdef CONFIG_NET_ALLOC_CONNS
int i;
#endif
/* The free list is protected by a semaphore (that behaves like a mutex). */
_usrsock_semtake(&g_free_sem);
#ifdef CONFIG_NET_ALLOC_CONNS
if (dq_peek(&g_free_usrsock_connections) == NULL)
{
conn = kmm_zalloc(sizeof(*conn) * CONFIG_NET_USRSOCK_CONNS);
if (conn != NULL)
{
for (i = 0; i < CONFIG_NET_USRSOCK_CONNS; i++)
{
dq_addlast(&conn[i].node, &g_free_usrsock_connections);
}
}
}
#endif
conn = (FAR struct usrsock_conn_s *)
dq_remfirst(&g_free_usrsock_connections);
if (conn)
{
/* Make sure that the connection is marked as uninitialized */
memset(conn, 0, sizeof(*conn));
nxsem_init(&conn->resp.sem, 0, 1);
conn->dev = NULL;
conn->usockid = -1;
conn->state = USRSOCK_CONN_STATE_UNINITIALIZED;
conn->list = NULL;
conn->connected = false;
/* Enqueue the connection into the active list */
@ -146,10 +162,6 @@ void usrsock_free(FAR struct usrsock_conn_s *conn)
nxsem_destroy(&conn->resp.sem);
memset(conn, 0, sizeof(*conn));
conn->dev = NULL;
conn->usockid = -1;
conn->state = USRSOCK_CONN_STATE_UNINITIALIZED;
conn->list = NULL;
/* Free the connection */
@ -316,7 +328,10 @@ void usrsock_setup_datain(FAR struct usrsock_conn_s *conn,
void usrsock_initialize(void)
{
#ifndef CONFIG_NET_ALLOC_CONNS
FAR struct usrsock_conn_s *conn;
int i;
#endif
/* Initialize the queues */
@ -324,20 +339,18 @@ void usrsock_initialize(void)
dq_init(&g_active_usrsock_connections);
nxsem_init(&g_free_sem, 0, 1);
#ifndef CONFIG_NET_ALLOC_CONNS
for (i = 0; i < CONFIG_NET_USRSOCK_CONNS; i++)
{
FAR struct usrsock_conn_s *conn = &g_usrsock_connections[i];
conn = &g_usrsock_connections[i];
/* Mark the connection closed and move it to the free list */
memset(conn, 0, sizeof(*conn));
conn->dev = NULL;
conn->usockid = -1;
conn->state = USRSOCK_CONN_STATE_UNINITIALIZED;
conn->list = NULL;
conn->flags = 0;
dq_addlast(&conn->node, &g_free_usrsock_connections);
}
#endif
/* Register /dev/usrsock character device. */