mirror of
https://git.rtems.org/rtems-libbsd/
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124 lines
3.1 KiB
C
124 lines
3.1 KiB
C
/**
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* @file
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*
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* @ingroup rtems_bsd_rtems
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*
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* @brief TODO.
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*/
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/*
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* Copyright (c) 2014, 2016 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Dornierstr. 4
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <machine/rtems-bsd-kernel-space.h>
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#include <sys/types.h>
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#include <sys/lock.h>
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#include <sys/systm.h>
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#include <sys/syslog.h>
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#include <stdio.h>
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#include <rtems/bsd/bsd.h>
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#undef printf
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#define VPRINTF_LOCK() _Mutex_Acquire(&vprintf_mtx)
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#define VPRINTF_UNLOCK() _Mutex_Release(&vprintf_mtx)
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static const char * const log_priorities[] = {
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[LOG_EMERG] = "emerg",
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[LOG_ALERT] = "alert",
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[LOG_CRIT] = "crit",
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[LOG_ERR] = "err",
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[LOG_WARNING] = "warning",
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[LOG_NOTICE] = "notice",
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[LOG_INFO] = "info",
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[LOG_DEBUG] = "debug"
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};
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/* Use a <sys/lock.h> mutex due to the static initialization capability */
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static struct _Mutex_Control vprintf_mtx = _MUTEX_INITIALIZER;
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static void
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vprintf_putchar(int c, void *arg)
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{
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int *last;
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last = arg;
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*last = c;
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putchar(c);
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}
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static int
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default_vprintf_handler(int level, const char *fmt, va_list ap)
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{
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int n;
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int last;
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VPRINTF_LOCK();
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if (level != LOG_PRINTF) {
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printf("%s: ", log_priorities[LOG_PRI(level)]);
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}
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last = -1;
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n = kvprintf(fmt, vprintf_putchar, &last, 10, ap);
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if (level != LOG_PRINTF && last != '\n') {
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putchar('\n');
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}
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VPRINTF_UNLOCK();
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return (n);
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}
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static int (*vprintf_handler)(int, const char *, va_list) =
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default_vprintf_handler;
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rtems_bsd_vprintf_handler
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rtems_bsd_set_vprintf_handler(rtems_bsd_vprintf_handler new_handler)
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{
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rtems_bsd_vprintf_handler old_handler;
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VPRINTF_LOCK();
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old_handler = vprintf_handler;
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vprintf_handler = new_handler;
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VPRINTF_UNLOCK();
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return (old_handler);
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}
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int
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rtems_bsd_vprintf(int level, const char *fmt, va_list ap)
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{
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return ((*vprintf_handler)(level, fmt, ap));
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}
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