helos1/smp/kthread.c

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2021-11-08 00:07:58 +08:00
#include "kthread.h"
#include "kthread_switch.h"
#include "internal.h"
#include "../util/tree.h"
#include "../interrupt/interrupt.h"
#include "../driver/irq/pic/rtc/rtc.h"
smp_thread_ID smp_thread_Init() {
INTERRUPT_DISABLE;
__smp_Threads = tree_Create(sizeof(__smp_Thread));
__smp_ThreadsWaiting = tree_Create(sizeof(void *));
__smp_Now = 1;
smp_thread_ID id = 1;
tree_Node * node = tree_Insert(__smp_Threads, 1, NULL);
__smp_Thread *t = (__smp_Thread *)node->data;
t->nice = SMP_NICENESS_DEFAULT;
t->id = id;
t->lastTick = 1;
__smp_Current[0] = t;
if (!pic_rtc_Enabled)
pic_rtc_Init();
pic_rtc_SetHandler(__smp_IntSwitch);
INTERRUPT_RESTORE;
return id;
}
int smp_thread_Nice(smp_thread_ID id, int newnice) {
INTERRUPT_DISABLE;
__smp_Thread *t = tree_Find(__smp_Threads, id);
if (!t) {
INTERRUPT_RESTORE;
return -1;
} else if (newnice < 0) {
INTERRUPT_RESTORE;
return t->nice;
}
int oldnice = t->nice;
t->nice = newnice;
INTERRUPT_RESTORE;
return oldnice;
}
void smp_thread_Yield() {
__smp_PauseTicker = true;
}