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