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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [osf-share/] [cma_attr.h] - Blame information for rev 106

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1 106 markom 
/*
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 * (c) Copyright 1990-1996 OPEN SOFTWARE FOUNDATION, INC.
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 * (c) Copyright 1990-1996 HEWLETT-PACKARD COMPANY
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 * (c) Copyright 1990-1996 DIGITAL EQUIPMENT CORPORATION
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 * (c) Copyright 1991, 1992 Siemens-Nixdorf Information Systems
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 * To anyone who acknowledges that this file is provided "AS IS" without
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 * any express or implied warranty: permission to use, copy, modify, and
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 * distribute this file for any purpose is hereby granted without fee,
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 * provided that the above copyright notices and this notice appears in
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 * all source code copies, and that none of the names listed above be used
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 * in advertising or publicity pertaining to distribution of the software
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 * without specific, written prior permission.  None of these organizations
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 * makes any representations about the suitability of this software for
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 * any purpose.
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 */
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/*
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 *      Header file for attributes object
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 */
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#ifndef CMA_ATTR
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#define CMA_ATTR
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/*
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 *  INCLUDE FILES
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 */
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#include <cma_defs.h>
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#include <cma_queue.h>
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#ifdef __hpux
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# include <sys/param.h>
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#endif
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#if _CMA_UNIX_TYPE == _CMA__SVR4
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#include <sys/unistd.h>
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#endif
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/*
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 * CONSTANTS AND MACROS
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 */
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/*
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 *  FUNCTIONAL DESCRIPTION:
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 *
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 *      cma__int_attr_get_priority -  Performs the work of cma_attr_get_priority
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 *
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 *  FORMAL PARAMETERS:
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 *
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 *      cma_t_attr          *_att_      - Attribute object to get from
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 *      cma_t_priority      *_setting_  - Current setting
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 *
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 *  IMPLICIT INPUTS:
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 *
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 *      none
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 *
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 *  IMPLICIT OUTPUTS:
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 *
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 *      priority
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 *
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 *  FUNCTION VALUE:
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 *
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 *      none
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 *
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 *  SIDE EFFECTS:
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 *
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 *      none
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 */
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#define cma__int_attr_get_priority(_att_,_setting_) { \
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    cma__t_int_attr     *_int_att_; \
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    (_int_att_) = cma__validate_default_attr (_att_); \
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    cma__int_lock ((_int_att_)->mutex); \
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    (*(_setting_)) = (_int_att_)->priority; \
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    cma__int_unlock ((_int_att_)->mutex); \
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    }
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/*
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 *  FUNCTIONAL DESCRIPTION:
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 *
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 *      cma__int_attr_get_sched - Performs work of cma_attr_get_sched
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 *
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 *  FORMAL PARAMETERS:
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 *
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 *      cma_t_attr          *_att_      _ Attributes object used
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 *      cma_t_sched_policy  *_setting_  - Current setting
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 *
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 *  IMPLICIT INPUTS:
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 *
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 *      none
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 *
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 *  IMPLICIT OUTPUTS:
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 *
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 *      scheduling policy
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 *
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 *  FUNCTION VALUE:
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 *
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 *      none
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 *
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 *  SIDE EFFECTS:
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 *
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 *      none
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 */
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#define cma__int_attr_get_sched(_att_,_setting_) { \
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    cma__t_int_attr     *_int_att_; \
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    (_int_att_) = cma__validate_default_attr (_att_); \
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    cma__int_lock ((_int_att_)->mutex); \
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    (*(_setting_)) = (_int_att_)->policy; \
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    cma__int_unlock ((_int_att_)->mutex); \
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    }
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/*
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 *  FUNCTIONAL DESCRIPTION:
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 *
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 *      cma__int_attr_get_inherit_sched - Performs work of
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 *      cma_attr_get_inherit_sched
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 *
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 *  FORMAL PARAMETERS:
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 *
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 *      cma_t_attr          *_att_      - Attributes object to use
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 *      cma_t_sched_inherit *_setting_  - Current setting
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 *
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 *  IMPLICIT INPUTS:
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 *
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 *      none
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 *
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 *  IMPLICIT OUTPUTS:
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 *
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 *      Inheritable scheduling policy
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 *
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 *  FUNCTION VALUE:
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 *
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 *      none
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 *
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 *  SIDE EFFECTS:
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 *
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 *      none
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 */
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#define cma__int_attr_get_inherit_sched(_att_,_setting_) { \
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    cma__t_int_attr     *_int_att_; \
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    (_int_att_) = cma__validate_default_attr (_att_); \
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    cma__int_lock ((_int_att_)->mutex); \
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    (*(_setting_)) \
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        = ((_int_att_)->inherit_sched ? cma_c_sched_inherit : cma_c_sched_use_default); \
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    cma__int_unlock ((_int_att_)->mutex); \
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    }
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/*
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 *  FUNCTIONAL DESCRIPTION:
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 *
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 *      cma__int_attr_set_stacksize - Performs work for cma_attr_set_stacksize
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 *
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 *  FORMAL PARAMETERS:
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 *
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 *      cma_t_attr          *_att_      - Attributes object to use
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 *      cma_t_natural       _setting_   - Setting
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 *
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 *  IMPLICIT INPUTS:
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 *
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 *      none
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 *
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 *  IMPLICIT OUTPUTS:
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 *
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 *      none
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 *
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 *  FUNCTION VALUE:
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 *
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 *      none
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 *
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 *  SIDE EFFECTS:
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 *
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 *      Change attribute objects stack size setting
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 */
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#define cma__int_attr_set_stacksize(_att_,_setting_) { \
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    cma__t_int_attr     *_int_att_; \
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    if ((_setting_) <= 0) \
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        cma__error (cma_s_badparam); \
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    _int_att_ = cma__validate_attr (_att_); \
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    cma__int_lock ((_int_att_)->mutex); \
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    _int_att_->stack_size = cma__roundup_chunksize(_setting_); \
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    cma__free_cache (_int_att_, cma__c_obj_tcb); \
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    _int_att_->cache[cma__c_obj_tcb].revision++; \
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    _int_att_->cache[cma__c_obj_stack].revision++; \
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    cma__int_unlock (_int_att_->mutex); \
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    }
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/*
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 *  FUNCTIONAL DESCRIPTION:
187 
 *
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 *      cma__int_attr_get_stacksize - Performs work of cma_attr_get_stacksize
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 *
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 *  FORMAL PARAMETERS:
191 
 *
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 *      cma_t_attr          *_att_      - Attributes object to use
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 *      cma_t_natural       *_setting_  - Current setting
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 *
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 *  IMPLICIT INPUTS:
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 *
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 *      none
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 *
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 *  IMPLICIT OUTPUTS:
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 *
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 *      Attribute objects stack size setting
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 *
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 *  FUNCTION VALUE:
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 *
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 *      none
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 *
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 *  SIDE EFFECTS:
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 *
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 *      none
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 */
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#define cma__int_attr_get_stacksize(_att_,_setting_) { \
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    cma__t_int_attr     *_int_att_; \
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    (_int_att_) = cma__validate_default_attr (_att_); \
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    cma__int_lock ((_int_att_)->mutex); \
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    (*(_setting_)) = (_int_att_)->stack_size; \
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    cma__int_unlock ((_int_att_)->mutex); \
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    }
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/*
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 *  FUNCTIONAL DESCRIPTION:
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 *
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 *      cma__int_attr_set_guardsize - Performs work for cma_attr_set_guardsize
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 *
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 *  FORMAL PARAMETERS:
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 *
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 *      cma_t_attr          *_att_      - Attributes object to use
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 *      cma_t_natural       _setting_   - Setting
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 *
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 *  IMPLICIT INPUTS:
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 *
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 *      none
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 *
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 *  IMPLICIT OUTPUTS:
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 *
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 *      none
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 *
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 *  FUNCTION VALUE:
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 *
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 *      none
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 *
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 *  SIDE EFFECTS:
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 *
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 *      Change attribute objects guard size setting
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 */
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#define cma__int_attr_set_guardsize(_att_,_setting_) { \
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    cma__t_int_attr     *_int_att_; \
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    _int_att_ = cma__validate_attr (_att_); \
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    cma__int_lock ((_int_att_)->mutex); \
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    _int_att_->guard_size = cma__roundup_chunksize(_setting_); \
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    cma__free_cache (_int_att_, cma__c_obj_tcb); \
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    _int_att_->cache[cma__c_obj_tcb].revision++; \
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    _int_att_->cache[cma__c_obj_stack].revision++; \
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    cma__int_unlock (_int_att_->mutex); \
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    }
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/*
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 *  FUNCTIONAL DESCRIPTION:
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 *
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 *      cma__int_attr_get_guardsize - Performs work of cma_attr_get_guardsize
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 *
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 *  FORMAL PARAMETERS:
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 *
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 *      cma_t_attr          *_att_      - Attributes object to use
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 *      cma_t_natural       *_setting_  - Current setting
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 *
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 *  IMPLICIT INPUTS:
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 *
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 *      none
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 *
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 *  IMPLICIT OUTPUTS:
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 *
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 *      Attribute objects guard size setting
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 *
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 *  FUNCTION VALUE:
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 *
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 *      none
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 *
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 *  SIDE EFFECTS:
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 *
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 *      none
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 */
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#define cma__int_attr_get_guardsize(_att_,_setting_) { \
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    cma__t_int_attr     *_int_att_; \
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    (_int_att_) = cma__validate_default_attr (_att_); \
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    cma__int_lock ((_int_att_)->mutex); \
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    (*(_setting_)) = (_int_att_)->guard_size; \
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    cma__int_unlock ((_int_att_)->mutex); \
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    }
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291 
/*
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 * TYPEDEFS
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 */
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#ifndef __STDC__
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struct CMA__T_INT_MUTEX;                /* Avoid circular dependency */
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#endif
297 
 
298 
typedef struct CMA__T_CACHE {
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    cma_t_natural               revision;       /* Revisions */
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    cma_t_natural               count;
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    cma__t_queue                queue;  /* Cache headers */
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    } cma__t_cache;
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typedef struct CMA__T_INT_ATTR {
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    cma__t_object               header;         /* Common header */
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    struct CMA__T_INT_ATTR      *attributes;    /* Point to controlling attr */
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    struct CMA__T_INT_MUTEX     *mutex;         /* Serialize access to object */
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    cma_t_priority              priority;       /* Priority of new thread */
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    cma_t_sched_policy          policy;         /* Sched policy of thread */
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    cma_t_boolean               inherit_sched;  /* Is scheduling inherited? */
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    cma_t_natural               stack_size;     /* Size of stack (bytes) */
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    cma_t_natural               guard_size;     /* Size of guard (bytes) */
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    cma_t_mutex_kind            mutex_kind;     /* Mutex kind */
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    cma__t_cache                cache[cma__c_obj_num];  /* Cache information */
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    cma_t_boolean               delete_pending; /* attr. obj. is deleted */
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    cma_t_natural               refcnt; /* Number of objects using attr. obj */
317 
    } cma__t_int_attr;
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319 
/*
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 *  GLOBAL DATA
321 
 */
322 
 
323 
extern cma__t_int_attr  cma__g_def_attr;
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325 
/*
326 
 * INTERNAL INTERFACES
327 
 */
328 
 
329 
extern void cma__destroy_attributes  (cma__t_int_attr *);
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331 
extern void cma__free_attributes  (cma__t_int_attr      *);
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333 
extern void cma__free_cache  (cma__t_int_attr *,cma_t_natural );
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335 
extern cma__t_int_attr *cma__get_attributes  (cma__t_int_attr   *);
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337 
extern void cma__init_attr  (void);
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extern void cma__reinit_attr  (cma_t_integer);
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#endif

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