/* * (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