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Diffstat (limited to 'nuttx/sched/sig_procmask.c')
| -rw-r--r-- | nuttx/sched/sig_procmask.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/nuttx/sched/sig_procmask.c b/nuttx/sched/sig_procmask.c deleted file mode 100644 index c67159589..000000000 --- a/nuttx/sched/sig_procmask.c +++ /dev/null @@ -1,180 +0,0 @@ -/**************************************************************************** - * sched/sig_procmask.c - * - * Copyright (C) 2007-2009 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. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <unistd.h> -#include <signal.h> -#include <time.h> -#include <wdog.h> -#include <assert.h> -#include <debug.h> -#include <sched.h> -#include <nuttx/kmalloc.h> -#include <nuttx/arch.h> - -#include "os_internal.h" -#include "sig_internal.h" - -/**************************************************************************** - * Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Type Declarations - ****************************************************************************/ - -/**************************************************************************** - * Global Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: sigprocmask - * - * Description: - * This function allows the calling process to examine and/or change its - * signal mask. If the 'set' is not NULL, then it points to a set of - * signals to be used to change the currently blocked set. The value of - * 'how' indicates the manner in which the set is changed. - * - * If there any pending unblocked signals after the call to sigprocmask(), - * those signals will be delivered before sigprocmask() returns. - * - * If sigprocmask() fails, the signal mask of the process is not changed - * by this function call. - * - * Parameters: - * how - How the signal mast will be changed: - * SIG_BLOCK - The resulting set is the union of the current set - * and the signal set pointed to by 'set'. - * SIG_UNBLOCK - The resulting set is the intersection of the current - * set and the complement of the signal set pointed to - * by 'set'. - * SIG_SETMASK - The resulting set is the signal set pointed to by - * 'set'. - * set - Location of the new signal mask - * oset - Location to store the old signal mask - * - * Return Value: - * 0 (OK), or -1 (ERROR) if how is invalid. - * - * Assumptions: - * - ****************************************************************************/ - -int sigprocmask(int how, FAR const sigset_t *set, FAR sigset_t *oset) -{ - FAR _TCB *rtcb = (FAR _TCB*)g_readytorun.head; - sigset_t oldsigprocmask; - irqstate_t saved_state; - int ret = OK; - - sched_lock(); - - /* Return the old signal mask if requested */ - - oldsigprocmask = rtcb->sigprocmask; - if (oset) - { - *oset = oldsigprocmask; - } - - /* Modify the current signal mask if so requested */ - - if (set) - { - /* Some of these operations are non-atomic. We need to protect - * ourselves from attempts to process signals from interrupts - */ - - saved_state = irqsave(); - - /* Okay, determine what we are supposed to do */ - - switch (how) - { - /* The resulting set is the union of the current set and the - * signal set pointed to by set. - */ - - case SIG_BLOCK: - rtcb->sigprocmask |= *set; - break; - - /* The resulting set is the intersection of the current set and - * the complement of the signal set pointed to by _set. - */ - - case SIG_UNBLOCK: - rtcb->sigprocmask &= ~(*set); - break; - - /* The resulting set is the signal set pointed to by set. */ - - case SIG_SETMASK: - rtcb->sigprocmask = *set; - break; - - default: - ret = ERROR; - break; - } - - irqrestore(saved_state); - - /* Now, process any pending signals that were just unmasked */ - - sig_unmaskpendingsignal(); - } - - sched_unlock(); - return ret; -} |