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//! Kagami Structure
const state = @import("../state.zig");
pub const Kagami = struct {
pml4_physical: u64,
reference_count: u32,
resident_pages: u64,
wired_pages: u64,
table_pages: u64,
lock: bool,
pub fn is_kernel(self: *const Kagami) bool {
const kernel_kagami = state.get_kernel_kagami();
return self.pml4_physical == kernel_kagami.pml4_physical;
}
pub fn increment_reference(self: *Kagami) void {
self.reference_count += 1;
}
pub fn decrement_reference(self: *Kagami) u32 {
if (self.reference_count > 0) {
self.reference_count -= 1;
}
return self.reference_count;
}
pub fn add_resident(self: *Kagami) void {
self.resident_pages += 1;
}
pub fn remove_resident(self: *Kagami) void {
if (self.resident_pages > 0) {
self.resident_pages -= 1;
}
}
pub fn add_wired(self: *Kagami) void {
self.wired_pages += 1;
}
pub fn remove_wired(self: *Kagami) void {
if (self.wired_pages > 0) {
self.wired_pages -= 1;
}
}
pub fn add_table(self: *Kagami) void {
self.table_pages += 1;
}
pub fn remove_table(self: *Kagami) void {
if (self.table_pages > 0) {
self.table_pages -= 1;
}
}
};
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