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Modify rtems_bsd_set_vprintf_handler()

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Return previous vprintf()-handler in rtems_bsd_set_vprintf_handler().
This commit is contained in:
Sebastian Huber
2016-06-28 08:35:06 +02:00
parent 6ff1baa08d
commit 520ab224ca
3 changed files with 21 additions and 8 deletions
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13
rtemsbsd/include/rtems/bsd/bsd.h
View File

@@ -206,15 +206,22 @@ int rtems_bsd_bus_root_resume(void);
*/
int rtems_bsd_bus_root_detach(void);
/**
* @brief The output back-end for logging functions.
*/
typedef int (*rtems_bsd_vprintf_handler)(int, const char *, va_list);
/**
* @brief Sets the output back-end for logging functions.
*
* @param new_vprintf_handler The new output back-end for logging functions.
* @param new_handler The new output back-end for logging functions.
*
* @return The previous handler.
*
* @see rtems_bsd_vprintf().
*/
void rtems_bsd_set_vprintf_handler(int (*new_vprintf_handler)
(int, const char *, va_list));
rtems_bsd_vprintf_handler rtems_bsd_set_vprintf_handler(
rtems_bsd_vprintf_handler new_handler);
/**
* @brief Output back-end for logging functions.

12
rtemsbsd/rtems/rtems-kernel-vprintf.c
View File

@@ -103,12 +103,16 @@ default_vprintf_handler(int level, const char *fmt, va_list ap)
static int (*vprintf_handler)(int, const char *, va_list) =
default_vprintf_handler;
void
rtems_bsd_set_vprintf_handler(int (*new_vprintf_handler)
(int, const char *, va_list))
rtems_bsd_vprintf_handler
rtems_bsd_set_vprintf_handler(rtems_bsd_vprintf_handler new_handler)
{
rtems_bsd_vprintf_handler old_handler;
vprintf_handler = new_vprintf_handler;
VPRINTF_LOCK();
old_handler = vprintf_handler;
vprintf_handler = new_handler;
VPRINTF_UNLOCK();
return (old_handler);
}
int