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This commit is contained in:
Jonathan Turner 2023-11-29 21:51:46 -05:00
parent 19419cc649
commit abbf714841
1 changed files with 29 additions and 7 deletions
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36
Part3/09_memory/kernel/kernel.c
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@ -46,10 +46,6 @@
if (sstrlen(args1, 15) > nDigits + 1) { if (sstrlen(args1, 15) > nDigits + 1) {
char *args2 = args1 + nDigits + 1; char *args2 = args1 + nDigits + 1;
limit = digit_conver(args2); limit = digit_conver(args2);
if (limit < 100) {
kprint("That memory address is to below the min of 0x100.\n");
valid = false;
}
} }
if (base < 10000) { if (base < 10000) {
kprint("That memory address is reserved by the Kernel, addresses must be 10000+\n"); kprint("That memory address is reserved by the Kernel, addresses must be 10000+\n");
@ -193,7 +189,7 @@ void print_memory(node *umem_head, node *hole_head) {
total_allocated = (total_allocated+1)/(0x400); total_allocated = (total_allocated+1)/(0x400);
char c[16]; char c[16];
int_to_ascii( total_allocated-64, c, 16); int_to_ascii( total_allocated, c, 16);
kprint("Total Allocated: "); kprint("Total Allocated: ");
kprint(c); kprint(c);
kprint("kb\n"); kprint("kb\n");
@ -215,8 +211,8 @@ void print_memory(node *umem_head, node *hole_head) {
node* get_holes(node* umem_head) { node* get_holes(node* umem_head) {
if (umem_head == NULL) { if (umem_head == NULL) {
kprint("Holes list is Empty\n"); node *hole = add_node(hole, 0x10000, 0x3FFFF, true, 0);
return NULL; return hole;
} }
u32 hole_ids = 0; u32 hole_ids = 0;
node *hole = NULL; node *hole = NULL;
@ -234,4 +230,30 @@ node* get_holes(node* umem_head) {
umem_head = umem_head->next; umem_head = umem_head->next;
} }
return hole; return hole;
}
void begin_output_example() {
static u32 delete_id = 0; // static persistent variable for incrementing during test
static node* umem_head = NULL; // static persistent head variable for contiguous block allocations
static node* hole_head = get_holes(umem_head);
kprint("Jonathan Turner - S02\n");
kprint("Current Allocation: \n");
print_memory(umem_head, holes_head);
umem_head = add_node( umem_head, 0x10000, 0x3FF, true, global_id++);
umem_head = add_node( umem_head, 0x11000, 0x1FF, true, global_id++);
umem_head = add_node( umem_head, 0x12000, 0x3FF, true, global_id++);
umem_head = add_node( umem_head, 0x15000, 0x7FF, true, global_id++);
umem_head = add_node( umem_head, 0x22000, 0x1FFF, true, global_id++);
print_memory(umem_head, holes_head);
node* temp = umem_head->next;
free_node(umem_head);
umem_head = temp;
umem_head->previous = NULL;
print_memory(umem_head, holes_head);
temp = get_tail(umem_head);
temp->previous = NULL;
free_node(temp);
print_memory(umem_head, holes_head);
} }