91 lines
2.1 KiB
C
91 lines
2.1 KiB
C
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/*
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*
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* arraystruct.h - array of structures
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* same thing as array but with structure instead of pointer
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*
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* include LICENSE
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*/
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#include <stdio.h>
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#include <string.h>
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#include <arraystruct.h>
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/*
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*** \brief Allocates memory for a new ArrayStruct object.
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*/
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ArrayStruct *array_struct_new( int elSize, int count, ElmDestroyFP_func func )
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{
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ArrayStruct *aryst;
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aryst = app_new0(ArrayStruct, 1);
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array_struct_construct( aryst, elSize, count, func );
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app_class_overload_destroy( (AppClass *) aryst, array_struct_destroy );
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return aryst;
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}
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/** \brief Constructor for the ArrayStruct object. */
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void array_struct_construct( ArrayStruct *aryst, int elSize, int count,
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ElmDestroyFP_func func )
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{
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array_construct( (Array *) aryst, elSize, count );
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array_set_elem_destroyFunc( (Array *) aryst, NULL);
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aryst->func = func;
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}
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/** \brief Destructor for the ArrayStruct object. */
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void array_struct_destroy(void *aryst)
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{
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ArrayStruct *this = (ArrayStruct *) aryst;
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if (aryst == NULL) {
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return;
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}
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array_struct_delete_all(this);
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array_destroy(aryst);
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}
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void array_struct_delete_all(ArrayStruct *aryst)
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{
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int i;
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void **pptr = (void **) ((Array *) aryst)->ptr;
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ElmDestroyFP_func func = aryst->func;
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if ( func ) {
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for ( i = 0 ; i < ((Array *) aryst)->nelem ; i++ ){
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pptr = ((Array *) aryst)->ptr + (i * ((Array *) aryst)->elSize);
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func ( pptr );
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}
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}
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((Array *) aryst)->nelem = 0;
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}
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/*
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* get a pointer to the structure at index
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*/
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void *array_struct_get( ArrayStruct *aryst, int index)
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{
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Array *ary = (Array *) aryst;
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if ( index >= ary->nelem) {
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msg_error ( "Index %d > Nb elem %d", index, ary->nelem);
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return NULL;
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}
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return (void *) ary->ptr + (ary->elSize * index);
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}
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/*
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* add a new element in array
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* return a pointer to the next elem
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* to let the user fill it
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*/
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void *array_struct_next(ArrayStruct *aryst )
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{
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Array *ary = (Array *) aryst;
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array_tbl_expand( ary, ary->nelem + 1);
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return (void *) ary->ptr + ( ary->elSize * ary->nelem++);
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}
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