138 lines
5.3 KiB
C
138 lines
5.3 KiB
C
/****************************************************************************
|
|
* include/nuttx/syslog/syslog.h
|
|
* The NuttX SYSLOGing interface
|
|
*
|
|
* Copyright (C) 2012, 2014-2015 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __INCLUDE_NUTTX_SYSLOG_SYSLOG_H
|
|
#define __INCLUDE_NUTTX_SYSLOG_SYSLOG_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
/* Configuration ************************************************************/
|
|
/* CONFIG_SYSLOG - Enables generic system logging features.
|
|
* CONFIG_SYSLOG_DEVPATH - The full path to the system logging device
|
|
*
|
|
* In addition, some SYSLOG device must also be enabled that will provide
|
|
* the syslog_putc() function. As of this writing, there are two SYSLOG
|
|
* devices avaiable:
|
|
*
|
|
* 1. A RAM SYSLOGing device that will log data into a circular buffer
|
|
* that can be dumped using the NSH dmesg command. This device is
|
|
* described in the include/nuttx/syslog/ramlog.h header file.
|
|
*
|
|
* 2. And a generic character device that may be used as the SYSLOG. The
|
|
* generic device interfaces are described in this file. A disadvantage
|
|
* of using the generic character device for the SYSLOG is that it
|
|
* cannot handle debug output generated from interrupt level handlers.
|
|
*
|
|
* CONFIG_SYSLOG_CHAR - Enable the generic character device for the SYSLOG.
|
|
* The full path to the SYSLOG device is provided by CONFIG_SYSLOG_DEVPATH.
|
|
* A valid character device must exist at this path. It will by opened
|
|
* by syslog_initialize.
|
|
*
|
|
* NOTE: No more than one SYSLOG device should be configured.
|
|
*/
|
|
|
|
#ifndef CONFIG_SYSLOG
|
|
# undef CONFIG_SYSLOG_CHAR
|
|
#endif
|
|
|
|
#if defined(CONFIG_SYSLOG_CHAR) && !defined(CONFIG_SYSLOG_DEVPATH)
|
|
# define CONFIG_SYSLOG_DEVPATH "/dev/ttyS1"
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
/****************************************************************************
|
|
* Name: syslog_initialize
|
|
*
|
|
* Description:
|
|
* Initialize to use the character device (or file) at
|
|
* CONFIG_SYSLOG_DEVPATH as the SYSLOG sink.
|
|
*
|
|
* NOTE that this implementation excludes using a network connection as
|
|
* SYSLOG device. That would be a good extension.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_SYSLOG_CHAR
|
|
int syslog_initialize(void);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: syslog_putc
|
|
*
|
|
* Description:
|
|
* This is the low-level system logging interface. The debugging/syslogging
|
|
* interfaces are syslog() and lowsyslog(). The difference is that
|
|
* the syslog() internface writes to fd=1 (stdout) whereas lowsyslog() uses
|
|
* a lower level interface that works from interrupt handlers. This
|
|
* function is the low-level interface used to implement lowsyslog().
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_SYSLOG
|
|
int syslog_putc(int ch);
|
|
#endif
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __INCLUDE_NUTTX_SYSLOG_SYSLOG_H */
|