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wip: better way of handling thread switch (iret in the switch)

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0x35c
2025-11-11 11:13:35 +01:00
parent bf993baa59
commit 9059901f70
7 changed files with 64 additions and 66 deletions
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31
src/multitasking/process.c
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@ -6,31 +6,6 @@
#include "string.h"
// int8_t create_kernel_process(void)
// {
// struct pcb *new_pcb = vmalloc(sizeof(struct pcb));
// if (!new_pcb)
// return -1;
// new_pcb->pid = 0;
// new_pcb->uid = 0;
// new_pcb->heap = kernel_pd;
// new_pcb->cr3 = (uint32_t *)((uint32_t)kernel_pd - HEAP_END);
// new_pcb->next = new_pcb;
// new_pcb->prev = new_pcb;
// struct tcb *kern_thread = vmalloc(sizeof(struct tcb));
// if (!kern_thread) {
// vfree(new_pcb);
// return -1;
// }
// kern_thread->esp = ;
// kern_thread->next = NULL;
// kern_thread->process = new_pcb;
// kern_thread->state = RUNNING;
// kern_thread->tid = 1;
// return 0;
// }
struct pcb *create_process(uint8_t uid)
{
static uint32_t pid = 1;
@ -47,14 +22,16 @@ struct pcb *create_process(uint8_t uid)
}
memcpy(new_pcb->heap, current_pcb->heap, 4096);
new_pcb->next = new_pcb;
new_pcb->prev = new_pcb;
if (current_pcb) {
new_pcb->next = current_pcb->next;
new_pcb->prev = current_pcb;
current_pcb->next = new_pcb;
if (current_pcb->prev == current_pcb)
current_pcb->prev = new_pcb;
}
else {
} else {
current_pcb = new_pcb;
}
new_pcb->signals.pending = SIG_IGN;