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task-scheduler's Introduction

Sistemas Operacionais "A" Trabalho Final: Agendamento de execução de tarefas no Linux

Alunos: Gustavo Karkow e Rodrigo Dias de Moura

Especificação da implementação:

Estruturas:

  • Estrutura Task: Contém todas as propriedades da tarefa (hh, mm, n, arq_tarefa, incr).

  • Estrutura SHM: referencia o segmento de memória compartilhado, contendo Vetor de tarefas; Contador que gera o id das tarefas; Contador de tarefas agendadas;

IPC:

  • Memória compartilhada para comunicação entre processos;
  • Semáforos para controle de acesso;
  • Set com 3 semáforos: Semáforo 0: controle sobre a memória compartilhada (livre/em uso; 0/1) Semáforo 1: status do daemon roda_tarefa (acordar/dormir; 0/1) Semáforo 2: controle sobre o loop do roda_tarefa (interromper/ativar; 0/1)

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