mirror of
https://git.rtems.org/rtems-libbsd/
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105 lines
2.6 KiB
C
105 lines
2.6 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) 2013, 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 <machine/rtems-bsd-thread.h>
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#include <sys/types.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#undef printf
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#define RTEMS_BSD_PROGRAM_NO_STRDUP_WRAP
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#define RTEMS_BSD_PROGRAM_NO_STRNDUP_WRAP
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#include <machine/rtems-bsd-program.h>
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struct rtems_bsd_program_control *
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rtems_bsd_program_get_control_or_null(void)
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{
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struct thread *td;
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td = rtems_bsd_get_curthread_or_null();
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if (td != NULL) {
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return (td->td_prog_ctrl);
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} else {
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return (NULL);
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}
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}
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int
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rtems_bsd_program_set_control(struct rtems_bsd_program_control *prog_ctrl)
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{
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struct thread *td;
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int error;
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td = rtems_bsd_get_curthread_or_null();
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if (td != NULL) {
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if (td->td_prog_ctrl == NULL) {
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error = 0;
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} else {
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error = EBUSY;
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}
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td->td_prog_ctrl = prog_ctrl;
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} else {
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error = ENOMEM;
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}
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return (error);
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}
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static struct mtx program_mtx;
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MTX_SYSINIT(rtems_bsd_program, &program_mtx, "BSD program", MTX_DEF);
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void
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rtems_bsd_program_lock(void)
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{
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mtx_lock(&program_mtx);
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}
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void
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rtems_bsd_program_unlock(void)
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{
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mtx_unlock(&program_mtx);
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}
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