| 91 | } |
| 92 | |
| 93 | void ProgramManager::schedule() |
| 94 | { |
| 95 | bool status = interruptManager.getInterruptStatus(); |
| 96 | interruptManager.disableInterrupt(); |
| 97 | |
| 98 | if (readyPrograms.size() == 0) |
| 99 | { |
| 100 | interruptManager.setInterruptStatus(status); |
| 101 | return; |
| 102 | } |
| 103 | else |
| 104 | { |
| 105 | //printf("amount of ready programs: %d\n", readyPrograms.size()); |
| 106 | } |
| 107 | |
| 108 | if (running->status == ProgramStatus::RUNNING) |
| 109 | { |
| 110 | running->status = ProgramStatus::READY; |
| 111 | running->ticks = running->priority * 10; |
| 112 | readyPrograms.push_back(&(running->tagInGeneralList)); |
| 113 | } |
| 114 | else if (running->status == ProgramStatus::DEAD) |
| 115 | { |
| 116 | releasePCB(running); |
| 117 | } |
| 118 | |
| 119 | ListItem *item = readyPrograms.front(); |
| 120 | PCB *next = ListItem2PCB(item, tagInGeneralList); |
| 121 | PCB *cur = running; |
| 122 | next->status = ProgramStatus::RUNNING; |
| 123 | running = next; |
| 124 | readyPrograms.pop_front(); |
| 125 | |
| 126 | //printf("schedule: %x %x\n", cur, next); |
| 127 | |
| 128 | activateProgramPage(next); |
| 129 | |
| 130 | asm_switch_thread(cur, next); |
| 131 | |
| 132 | interruptManager.setInterruptStatus(status); |
| 133 | } |
| 134 | |
| 135 | void program_exit() |
| 136 | { |
no test coverage detected