int nx_kbdin(NXHANDLE handle, uint8_t nch, FAR const uint8_t *ch)
{
FAR struct nxfe_conn_s *conn = (FAR struct nxfe_conn_s *)handle;
FAR struct nxsvrmsg_kbdin_s *outmsg;
int size;
int ret;
int i;
/* Allocate a bigger message to account for the variable amount of character
* data.
*/
size = sizeof(struct nxsvrmsg_kbdin_s) + nch - 1;
outmsg = (FAR struct nxsvrmsg_kbdin_s *)kmalloc(size);
if (!outmsg)
{
errno = ENOMEM;
return ERROR;
}
/* Inform the server of the new keypad data */
outmsg->msgid = NX_SVRMSG_KBDIN;
outmsg->nch = nch;
for (i = 0; i < nch; i++)
{
outmsg->ch[i] = ch[i];
}
ret = nxmu_sendserver(conn, outmsg, size);
kfree(outmsg);
return ret;
}
int nxmu_sendwindow(FAR struct nxbe_window_s *wnd, FAR const void *msg,
size_t msglen)
{
int ret = OK;
/* Sanity checking */
#ifdef CONFIG_DEBUG
if (!wnd || !wnd->conn)
{
set_errno(EINVAL);
return ERROR;
}
#endif
/* Ignore messages destined to a blocked window (no errors reported) */
if (!NXBE_ISBLOCKED(wnd))
{
/* Send the message to the server */
ret = nxmu_sendserver(wnd->conn, msg, msglen);
}
return ret;
}
int nx_closewindow(NXWINDOW hwnd)
{
FAR struct nxbe_window_s *wnd = (FAR struct nxbe_window_s *)hwnd;
struct nxsvrmsg_closewindow_s outmsg;
/* Request destruction of the window by the server */
outmsg.msgid = NX_SVRMSG_CLOSEWINDOW;
outmsg.wnd = wnd;
return nxmu_sendserver(wnd->conn, &outmsg, sizeof(struct nxsvrmsg_closewindow_s));
}
int nx_mousein(NXHANDLE handle, nxgl_coord_t x, nxgl_coord_t y, uint8_t buttons)
{
FAR struct nxfe_conn_s *conn = (FAR struct nxfe_conn_s *)handle;
struct nxsvrmsg_mousein_s outmsg;
/* Inform the server that this client no longer exists */
outmsg.msgid = NX_SVRMSG_MOUSEIN;
outmsg.pt.x = x;
outmsg.pt.y = y;
outmsg.buttons = buttons;
return nxmu_sendserver(conn, &outmsg, sizeof(struct nxsvrmsg_mousein_s));
}
void nx_disconnect(NXHANDLE handle)
{
FAR struct nxfe_conn_s *conn = (FAR struct nxfe_conn_s *)handle;
struct nxsvrmsg_s outmsg;
int ret;
/* Inform the server that this client no longer exists */
outmsg.msgid = NX_SVRMSG_DISCONNECT;
outmsg.conn = conn;
/* We will finish the teardown upon receipt of the DISCONNECTED message */
ret = nxmu_sendserver(conn, &outmsg, sizeof(struct nxsvrmsg_s));
if (ret < 0)
{
gdbg("ERROR: nxmu_sendserver() returned %d\n", ret);
}
}
int nx_block(NXWINDOW hwnd, FAR void *arg)
{
FAR struct nxbe_window_s *wnd = (FAR struct nxbe_window_s *)hwnd;
struct nxsvrmsg_blocked_s outmsg;
int ret = OK;
#ifdef CONFIG_DEBUG
if (!hwnd)
{
set_errno(EINVAL);
return ERROR;
}
#endif
/* Ignore additional attempts to block messages (no errors reported) */
if (!NXBE_ISBLOCKED(wnd))
{
/* Mark the window as blocked. This will stop all messages to the window
* (EXCEPT the NX_SVRMSG_BLOCKED). Blocking the messages before sending the
* blocked message is awkward but assures that no other messages sneak into
* the message queue before we can set the blocked state.
*/
NXBE_SETBLOCKED(wnd);
/* Send the message inicating that the window is blocked (and because of
* queue also that there are no additional queue messages for the window)
*/
outmsg.msgid = NX_SVRMSG_BLOCKED;
outmsg.wnd = wnd;
outmsg.arg = arg;
/* Send the window message via nxmu_sendserver (vs. nxmu_sendwindow) so
* that it will not be blocked.
*/
ret = nxmu_sendserver(wnd->conn, &outmsg, sizeof(struct nxsvrmsg_blocked_s));
}
return ret;
}
int nx_setbgcolor(NXHANDLE handle,
nxgl_mxpixel_t color[CONFIG_NX_NPLANES])
{
FAR struct nxfe_conn_s *conn = (FAR struct nxfe_conn_s *)handle;
struct nxsvrmsg_setbgcolor_s outmsg;
#ifdef CONFIG_DEBUG
if (!conn)
{
errno = EINVAL;
return ERROR;
}
#endif
/* Format the fill command */
outmsg.msgid = NX_SVRMSG_SETBGCOLOR;
nxgl_colorcopy(outmsg.color, color);
/* Forward the fill command to the server */
return nxmu_sendserver(conn, &outmsg, sizeof(struct nxsvrmsg_setbgcolor_s));
}
NXHANDLE nx_connectinstance(FAR const char *svrmqname)
{
FAR struct nxfe_conn_s *conn;
struct nxsvrmsg_s outmsg;
char climqname[NX_CLIENT_MXNAMELEN];
struct mq_attr attr;
int ret;
/* Sanity checking */
#ifdef CONFIG_DEBUG_FEATURES
if (!svrmqname)
{
set_errno(EINVAL);
return NULL;
}
#endif
/* Allocate the NX client structure */
conn = (FAR struct nxfe_conn_s *)lib_uzalloc(sizeof(struct nxfe_conn_s));
if (!conn)
{
set_errno(ENOMEM);
goto errout;
}
/* Create the client MQ name */
nxmu_semtake(&g_nxlibsem);
conn->cid = g_nxcid++;
nxmu_semgive(&g_nxlibsem);
sprintf(climqname, NX_CLIENT_MQNAMEFMT, conn->cid);
/* Open the client MQ for reading */
attr.mq_maxmsg = CONFIG_NX_MXCLIENTMSGS;
attr.mq_msgsize = NX_MXCLIMSGLEN;
attr.mq_flags = 0;
#ifdef CONFIG_NX_BLOCKING
conn->crdmq = mq_open(climqname, O_RDONLY|O_CREAT, 0666, &attr);
#else
conn->crdmq = mq_open(climqname, O_RDONLY|O_CREAT|O_NONBLOCK, 0666, &attr);
#endif
if (conn->crdmq == (mqd_t)-1)
{
gerr("ERROR: mq_open(%s) failed: %d\n", climqname, errno);
goto errout_with_conn;
}
/* Open the server MQ for writing */
attr.mq_maxmsg = CONFIG_NX_MXSERVERMSGS;
attr.mq_msgsize = NX_MXSVRMSGLEN;
attr.mq_flags = 0;
conn->cwrmq = mq_open(svrmqname, O_WRONLY|O_CREAT, 0666, &attr);
if (conn->cwrmq == (mqd_t)-1)
{
gerr("ERROR: mq_open(%s) failed: %d\n", svrmqname, errno);
goto errout_with_rmq;
}
/* Inform the server that this client exists */
outmsg.msgid = NX_SVRMSG_CONNECT;
outmsg.conn = conn;
ret = nxmu_sendserver(conn, &outmsg, sizeof(struct nxsvrmsg_s));
if (ret < 0)
{
gerr("ERROR: nxmu_sendserver failed: %d\n", errno);
goto errout_with_wmq;
}
#if 0
/* Now read until we get a response to this message. The server will
* respond with either (1) NX_CLIMSG_CONNECTED, in which case the state
* will change to NX_CLISTATE_CONNECTED, or (2) NX_CLIMSG_DISCONNECTED
* in which case, nx_message will fail with errno = EHOSTDOWN.
*/
do
{
ret = nx_eventhandler((NXHANDLE)conn);
if (ret < 0)
{
gerr("ERROR: nx_message failed: %d\n", errno);
goto errout_with_wmq;
}
usleep(300000);
}
while (conn->state != NX_CLISTATE_CONNECTED);
#endif
return (NXHANDLE)conn;
errout_with_wmq:
mq_close(conn->cwrmq);
errout_with_rmq:
mq_close(conn->crdmq);
errout_with_conn:
lib_ufree(conn);
errout:
return NULL;
}
