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#ifndef CYGONCE_ISO_SCHED_H
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#define CYGONCE_ISO_SCHED_H
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/*========================================================================
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//
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// sched.h
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//
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// POSIX scheduler functions
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//
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//========================================================================
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// ####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later
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// version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with eCos; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// As a special exception, if other files instantiate templates or use
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// macros or inline functions from this file, or you compile this file
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// and link it with other works to produce a work based on this file,
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// this file does not by itself cause the resulting work to be covered by
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// the GNU General Public License. However the source code for this file
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// must still be made available in accordance with section (3) of the GNU
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// General Public License v2.
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//
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// This exception does not invalidate any other reasons why a work based
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// on this file might be covered by the GNU General Public License.
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// -------------------------------------------
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// ####ECOSGPLCOPYRIGHTEND####
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//========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): jlarmour
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// Contributors:
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// Date: 2000-04-14
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// Purpose: This file provides the scheduler macros, types and functions
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// required by POSIX 1003.1.
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// Description: The real contents of this file get set from the
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// configuration (set by the implementation)
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// Usage: #include <sched.h>
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//
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//####DESCRIPTIONEND####
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//
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//======================================================================
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*/
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/* CONFIGURATION */
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#include <pkgconf/isoinfra.h> /* Configuration header */
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/* INCLUDES */
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#include <time.h>
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#if CYGINT_ISO_SCHED_IMPL
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# ifdef CYGBLD_ISO_SCHED_IMPL_HEADER
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# include CYGBLD_ISO_SCHED_IMPL_HEADER
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# else
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//-----------------------------------------------------------------------------
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// Scheduling Policys
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#define SCHED_OTHER 1
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#define SCHED_FIFO 2
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#define SCHED_RR 3
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//-----------------------------------------------------------------------------
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//Process scheduling functions.
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Set scheduling parameters for given process.
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extern int sched_setparam (pid_t pid, const struct sched_param *param);
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// Get scheduling parameters for given process.
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extern int sched_getparam (pid_t pid, struct sched_param *param);
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// Set scheduling policy and/or parameters for given process.
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extern int sched_setscheduler (pid_t pid,
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int policy,
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const struct sched_param *param);
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// Get scheduling policy for given process.
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extern int sched_getscheduler (pid_t pid);
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// Force current thread to relinquish the processor.
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extern int sched_yield (void);
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//-----------------------------------------------------------------------------
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// Scheduler parameter limits.
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// Get maximum priority value for a policy.
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extern int sched_get_priority_max (int policy);
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// Get minimum priority value for a policy.
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extern int sched_get_priority_min (int policy);
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// Get the SCHED_RR interval for the given process.
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extern int sched_rr_get_interval (pid_t pid, struct timespec *t);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif
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#endif /* if CYGINT_ISO_SCHED_IMPL */
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#endif /* CYGONCE_ISO_SCHED_H multiple inclusion protection */
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/* EOF sched.h */
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