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graphics/, libnx/: Disable priority inheritance on all semaphores used for signaling

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This commit is contained in:
Gregory Nutt 2016-11-03 17:12:49 -06:00
parent d28181da10
commit 77a0b6c26a
3 changed files with 23 additions and 53 deletions
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20
graphics/nxterm/nxterm_register.c
View file

@ -1,7 +1,7 @@
/****************************************************************************
* nuttx/graphics/nxterm/nxterm_register.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Copyright (C) 2012, 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -48,22 +48,11 @@
#include <debug.h>
#include <nuttx/kmalloc.h>
#include <nuttx/semaphore.h>
#include <nuttx/fs/fs.h>
#include "nxterm.h"
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
@ -104,7 +93,12 @@ FAR struct nxterm_state_s *
#endif
#ifdef CONFIG_NXTERM_NXKBDIN
/* The waitsem semaphore is used for signaling and, hence, should not have
* priority inheritance enabled.
*/
sem_init(&priv->waitsem, 0, 0);
sem_setprotocol(&priv->waitsem, SEM_PRIO_NONE);
#endif
/* Select the font */

28
libnx/nxmu/nx_bitmap.c
View file

@ -1,7 +1,7 @@
/****************************************************************************
* libnx/nxmu/nx_bitmap.c
*
* Copyright (C) 2008-2009, 2011-2013 Gregory Nutt. All rights reserved.
* Copyright (C) 2008-2009, 2011-2013, 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -46,25 +46,7 @@
#include <nuttx/nx/nxbe.h>
#include <nuttx/nx/nxmu.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
#include <nuttx/semaphore.h>
/****************************************************************************
* Public Functions
@ -137,6 +119,12 @@ int nx_bitmap(NXWINDOW hwnd, FAR const struct nxgl_rect_s *dest,
return ret;
}
/* The sem_done semaphore is used for signaling and, hence, should not have
* priority inheritance enabled.
*/
(void)sem_setprotocol(&sem_done, SEM_PRIO_NONE);
/* Forward the fill command to the server */
ret = nxmu_sendwindow(wnd, &outmsg, sizeof(struct nxsvrmsg_bitmap_s));

28
libnx/nxmu/nx_getrectangle.c
View file

@ -1,7 +1,7 @@
/****************************************************************************
* libnx/nxmu/nx_getrectangle.c
*
* Copyright (C) 2011-2013 Gregory Nutt. All rights reserved.
* Copyright (C) 2011-2013, 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -47,25 +47,7 @@
#include <nuttx/nx/nxbe.h>
#include <nuttx/nx/nxmu.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
#include <nuttx/semaphore.h>
/****************************************************************************
* Public Functions
@ -131,6 +113,12 @@ int nx_getrectangle(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
return ret;
}
/* The sem_done semaphore is used for signaling and, hence, should not have
* priority inheritance enabled.
*/
(void)sem_setprotocol(&sem_done, SEM_PRIO_NONE);
/* Forward the fill command to the server */
ret = nxmu_sendwindow(wnd, &outmsg, sizeof(struct nxsvrmsg_getrectangle_s));