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57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
//
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// Created by Antoine Bartuccio on 06/06/2018.
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//
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#include "SharedData.h"
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SETTER(SharedData, Building *, main_building)
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void wait_threads_SharedData(THIS(SharedData)){
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int i;
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for (i=0; i<this->threads_nb; i++)
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pthread_join(this->threads[i], NULL);
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}
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int call_elevator_SharedData(THIS(SharedData), int starting_floor, int destination_floor){
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/* Make the thread wait for an elevator available and return the id of the elevator available */
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if (this->main_building == NULL)
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CRASH("No building attached to shared data, you cannot call an elevator\n");
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if (starting_floor < 0)
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CRASH("You cannot start from a floor lower than 0\n");
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if (destination_floor > FLOORS)
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CRASH("You are trying to reach a floor higher than the highest floor\n");
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return 0;
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}
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void _free__SharedData(THIS(SharedData)){
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int i;
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if (this->threads != NULL){
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for (i=0; i<this->threads_nb; i++)
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pthread_cancel(this->threads[i]);
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free(this->threads);
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}
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if (this->main_building != NULL)
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DELETE(this->main_building);
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free(this);
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}
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SharedData *_get_instance_SharedData(){
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static SharedData * new_shared_data = NULL;
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if (new_shared_data == NULL){
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new_shared_data = malloc_or_die(sizeof(SharedData));
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new_shared_data->threads = NULL;
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new_shared_data->main_building = NULL; /* Should be set to NULL if freed */
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new_shared_data->threads_nb = 0;
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LINK_ALL(SharedData, new_shared_data,
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wait_threads,
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set_main_building,
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call_elevator
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);
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}
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return new_shared_data;
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}
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