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/* SubMtxList.h */
#include "../SubMtx.h"
#include "../Lock.h"
/*--------------------------------------------------------------------*/
/*
--------------------------------------------------------------------
this object handles a list of lists of SubMtx objects
nlist -- # of lists
heads -- heads[ilist] contains a pointer
to the first SubMtx object in list ilist
counts -- when not-NULL, counts[ilist] contains the remaining number
of objects to be added to list ilist before it is complete
lock -- mutex object, can be NULL
flags -- when not NULL, a vector to specify when a list needs
to be locked before adding an object to it.
flags[ilist] = 'N' --> no need to lock
flags[ilist] = 'Y' --> must lock
nlocks -- number of times the list was locked
--------------------------------------------------------------------
*/
typedef struct _SubMtxList SubMtxList ;
struct _SubMtxList {
int nlist ;
SubMtx **heads ;
int *counts ;
Lock *lock ;
char *flags ;
int nlocks ;
} ;
/*--------------------------------------------------------------------*/
/*
------------------------------------------------------------------------
----- methods found in basics.c ----------------------------------------
------------------------------------------------------------------------
*/
/*
-----------------------
simplest constructor
created -- 98may02, cca
-----------------------
*/
SubMtxList *
SubMtxList_new (
void
) ;
/*
-----------------------
set the default fields
created -- 98may02, cca
-----------------------
*/
void
SubMtxList_setDefaultFields (
SubMtxList *list
) ;
/*
--------------------------------------------------
clear the data fields, releasing allocated storage
created -- 98may02, cca
--------------------------------------------------
*/
void
SubMtxList_clearData (
SubMtxList *list
) ;
/*
------------------------------------------
destructor, free's the object and its data
created -- 98may02, cca
------------------------------------------
*/
void
SubMtxList_free (
SubMtxList *list
) ;
/*--------------------------------------------------------------------*/
/*
------------------------------------------------------------------------
----- methods found in init.c ------------------------------------------
------------------------------------------------------------------------
*/
/*
------------------------------------------------------------------
purpose -- basic initializer
nlist -- number of lists to be held by this object
counts -- vector that contains number of items expected
for each list.
counts == NULL --> unknown number of items expected
counts != NULL --> known number of items expected
lockflag -- flag to specify lock status
lockflag = 0 --> mutex lock is not allocated or initialized
lockflag = 1 --> mutex lock is allocated and it can synchronize
only threads in this process.
lockflag = 2 --> mutex lock is allocated and it can synchronize
threads in this and other processes.
flags -- vector to specify whether to lock individual lists
flags == NULL --> none or all lists must be locked,
use lockflag to determine
flags[ilist] = 'N' --> no need to lock list ilist
flags[ilist] = 'Y' --> must lock list ilist
created -- 98may02, cca
------------------------------------------------------------------
*/
void
SubMtxList_init (
SubMtxList *list,
int nlist,
int counts[],
int lockflag,
char flags[]
) ;
/*--------------------------------------------------------------------*/
/*
------------------------------------------------------------------------
----- methods found in IO.c --------------------------------------------
------------------------------------------------------------------------
*/
/*
----------------------------------------
purpose -- to write the object to a file
in human readable form
created -- 98may02, cca
----------------------------------------
*/
void
SubMtxList_writeForHumanEye (
SubMtxList *list,
FILE *fp
) ;
/*--------------------------------------------------------------------*/
/*
------------------------------------------------------------------------
----- methods found in util.c ------------------------------------------
------------------------------------------------------------------------
*/
/*
-----------------------------------
return 1 if list ilist is not empty
return 0 if list ilist is empty
created -- 98may02, cca
-----------------------------------
*/
int
SubMtxList_isListNonempty (
SubMtxList *list,
int ilist
) ;
/*
---------------------------------------------------------
return 1 if the count for list ilist is zero
return 0 if the count for list ilist is greater than zero
created -- 98may02, cca
---------------------------------------------------------
*/
int
SubMtxList_isCountZero (
SubMtxList *list,
int ilist
) ;
/*
----------------------------
add and object to list ilist
created -- 98may02, cca
----------------------------
*/
void
SubMtxList_addObjectToList (
SubMtxList *list,
SubMtx *obj,
int ilist
) ;
/*
------------------------------------
return pointer to head of list ilist
and set head to NULL
created -- 98may02, cca
------------------------------------
*/
SubMtx *
SubMtxList_getList (
SubMtxList *list,
int ilist
) ;
/*--------------------------------------------------------------------*/
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