/**
* @file
*
* @ingroup rtems_bsd_rtems
*
* @brief TODO.
*/
/*
* Copyright (c) 2013, 2016 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#include <machine/rtems-bsd-kernel-space.h>
#include <machine/rtems-bsd-thread.h>
#include <sys/types.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#undef printf
#define RTEMS_BSD_PROGRAM_NO_STRDUP_WRAP
#define RTEMS_BSD_PROGRAM_NO_STRNDUP_WRAP
#include <machine/rtems-bsd-program.h>
struct rtems_bsd_program_control *
rtems_bsd_program_get_control_or_null(void)
{
struct thread *td;
td = rtems_bsd_get_curthread_or_null();
if (td != NULL) {
return (td->td_prog_ctrl);
} else {
return (NULL);
}
}
int
rtems_bsd_program_set_control(struct rtems_bsd_program_control *prog_ctrl)
{
struct thread *td;
int error;
td = rtems_bsd_get_curthread_or_null();
if (td != NULL) {
if (td->td_prog_ctrl == NULL) {
error = 0;
} else {
error = EBUSY;
}
td->td_prog_ctrl = prog_ctrl;
} else {
error = ENOMEM;
}
return (error);
}
static struct mtx program_mtx;
MTX_SYSINIT(rtems_bsd_program, &program_mtx, "BSD program", MTX_DEF);
void
rtems_bsd_program_lock(void)
{
mtx_lock(&program_mtx);
}
void
rtems_bsd_program_unlock(void)
{
mtx_unlock(&program_mtx);
}
