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authorChristian Cunningham <cc@localhost>2022-08-26 19:49:13 -0700
committerChristian Cunningham <cc@localhost>2022-08-26 19:49:13 -0700
commit2b61ad947c64d76875311e6af08c87a5592055b3 (patch)
tree81b8ce619cb78986ec8bec13177c05b477ccb6e6 /src/mem
parenta04cf2dbb8d2e890405fbf0a1022aaad3015b1e8 (diff)
SpinLocks
Diffstat (limited to 'src/mem')
-rw-r--r--src/mem/alloc.rs289
-rw-r--r--src/mem/types.rs54
2 files changed, 0 insertions, 343 deletions
diff --git a/src/mem/alloc.rs b/src/mem/alloc.rs
deleted file mode 100644
index 514f34f..0000000
--- a/src/mem/alloc.rs
+++ /dev/null
@@ -1,289 +0,0 @@
-//! # Allocate crate
-//!
-//! Provides the Global allocator and methods
-//! to create special purpose allocators.
-use super::types::*;
-use crate::sync::interface::Mutex;
-use crate::sync::NullLock;
-use crate::serial_vprintln;
-use alloc::alloc::{GlobalAlloc, Layout};
-use os_pic::init_lifo_queue;
-use os_pic::util::lifo_queue::LifoQueue;
-use os_pic::util::node::Node;
-use os_pic::util::queue::Queue;
-
-/// # Grand Allocator
-///
-/// The structure that uses different sized pools and allocates memory chunks
-pub struct GrandAllocator {}
-
-/// # The number of elements of each size
-const GRAND_ALLOC_SIZE: usize = 64;
-
-init_lifo_queue!(U8_GRAND_ALLOC, GRAND_ALLOC_SIZE, 0, u8);
-init_lifo_queue!(U16_GRAND_ALLOC, GRAND_ALLOC_SIZE, 0, u16);
-init_lifo_queue!(U32_GRAND_ALLOC, GRAND_ALLOC_SIZE, 0, u32);
-init_lifo_queue!(U64_GRAND_ALLOC, GRAND_ALLOC_SIZE, 0, u64);
-init_lifo_queue!(U128_GRAND_ALLOC, GRAND_ALLOC_SIZE, 0, u128);
-init_lifo_queue!(U256_GRAND_ALLOC, GRAND_ALLOC_SIZE, { U256::new() }, U256);
-init_lifo_queue!(U512_GRAND_ALLOC, GRAND_ALLOC_SIZE, { U512::new() }, U512);
-init_lifo_queue!(U1024_GRAND_ALLOC, GRAND_ALLOC_SIZE, { U1024::new() }, U1024);
-init_lifo_queue!(U2048_GRAND_ALLOC, GRAND_ALLOC_SIZE, { U2048::new() }, U2048);
-init_lifo_queue!(U4096_GRAND_ALLOC, GRAND_ALLOC_SIZE, { U4096::new() }, U4096);
-
-impl GrandAllocator {
- pub fn init(&self) -> Result<(), &'static str> {
- serial_vprintln!("GA: \x1b[93mInit U8 Pool\x1b[0m");
- U8_GRAND_ALLOC.init();
- serial_vprintln!("GA: \x1b[93mInit U16 Pool\x1b[0m");
- U16_GRAND_ALLOC.init();
- serial_vprintln!("GA: \x1b[93mInit U32 Pool\x1b[0m");
- U32_GRAND_ALLOC.init();
- serial_vprintln!("GA: \x1b[93mInit U64 Pool\x1b[0m");
- U64_GRAND_ALLOC.init();
- serial_vprintln!("GA: \x1b[93mInit U128 Pool\x1b[0m");
- U128_GRAND_ALLOC.init();
- serial_vprintln!("GA: \x1b[93mInit U256 Pool\x1b[0m");
- U256_GRAND_ALLOC.init();
- serial_vprintln!("GA: \x1b[93mInit U512 Pool\x1b[0m");
- U512_GRAND_ALLOC.init();
- serial_vprintln!("GA: \x1b[93mInit U1024 Pool\x1b[0m");
- U1024_GRAND_ALLOC.init();
- serial_vprintln!("GA: \x1b[93mInit U2048 Pool\x1b[0m");
- U2048_GRAND_ALLOC.init();
- serial_vprintln!("GA: \x1b[93mInit U4096 Pool\x1b[0m");
- U4096_GRAND_ALLOC.init();
- serial_vprintln!("GA: \x1b[94mPools Initialized!\x1b[0m");
- Ok(())
- }
-}
-
-unsafe impl GlobalAlloc for GrandAllocator {
- /// # Allocator
- ///
- /// Allocate the fixed size chunks
- unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
- serial_vprintln!("GA: Allocating chunk of size {}!", layout.size());
- match layout.size() {
- 1 => match U8_GRAND_ALLOC.pop() {
- None => {
- panic!("No cells to allocate!");
- }
- Some(elem) => {
- return (*elem).ptr();
- }
- },
- 2 => match U16_GRAND_ALLOC.pop() {
- None => {
- panic!("No cells to allocate!");
- }
- Some(elem) => {
- return (*elem).ptr();
- }
- },
- 3..=4 => match U32_GRAND_ALLOC.pop() {
- None => {
- panic!("No cells to allocate!");
- }
- Some(elem) => {
- return (*elem).ptr();
- }
- },
- 5..=8 => match U64_GRAND_ALLOC.pop() {
- None => {
- panic!("No cells to allocate!");
- }
- Some(elem) => {
- return (*elem).ptr();
- }
- },
- 9..=16 => match U128_GRAND_ALLOC.pop() {
- None => {
- panic!("No cells to allocate!");
- }
- Some(elem) => {
- return (*elem).ptr();
- }
- },
- 17..=32 => match U256_GRAND_ALLOC.pop() {
- None => {
- panic!("No cells to allocate!");
- }
- Some(elem) => {
- return (*elem).ptr();
- }
- },
- 33..=64 => match U512_GRAND_ALLOC.pop() {
- None => {
- panic!("No cells to allocate!");
- }
- Some(elem) => {
- return (*elem).ptr();
- }
- },
- 65..=128 => match U1024_GRAND_ALLOC.pop() {
- None => {
- panic!("No cells to allocate!");
- }
- Some(elem) => {
- return (*elem).ptr();
- }
- },
- 129..=256 => match U2048_GRAND_ALLOC.pop() {
- None => {
- panic!("No cells to allocate!");
- }
- Some(elem) => {
- return (*elem).ptr();
- }
- },
- 257..=512 => match U4096_GRAND_ALLOC.pop() {
- None => {
- panic!("No cells to allocate!");
- }
- Some(elem) => {
- return (*elem).ptr();
- }
- },
- _ => {
- panic!("No allocators for size {}!", layout.size());
- }
- }
- }
-
- /// # Deallocate
- ///
- /// Deallocate the fixed size chunks by searching for them
- unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
- serial_vprintln!("GA: Deallocating chunk of size {}!", layout.size());
- match layout.size() {
- 1 => {
- U8_GRAND_ALLOC.inner.lock(|pool| {
- let spacing: usize = (pool[2].ptr() as usize) - (pool[1].ptr() as usize);
- let diff: usize = (ptr as usize) - (pool[1].ptr() as usize);
- let index: usize = diff/spacing;
- assert!(index < GRAND_ALLOC_SIZE, "{} is out of the allocation bounds ({})", index, GRAND_ALLOC_SIZE);
- assert_eq!(diff % spacing, 0, "{} is not aligned with the spacings and so it must not have been allocated by the Grand Allocator", diff % spacing);
- U8_GRAND_ALLOC.push(&mut pool[index+1]);
- serial_vprintln!("GA: Freeing ({}, {}, {})", index, diff, spacing);
- });
- }
- 2 => {
- U16_GRAND_ALLOC.inner.lock(|pool| {
- let spacing: usize = (pool[2].ptr() as usize) - (pool[1].ptr() as usize);
- let diff: usize = (ptr as usize) - (pool[1].ptr() as usize);
- let index: usize = diff/spacing;
- assert!(index < GRAND_ALLOC_SIZE, "{} is out of the allocation bounds ({})", index, GRAND_ALLOC_SIZE);
- assert_eq!(diff % spacing, 0, "{} is not aligned with the spacings and so it must not have been allocated by the Grand Allocator", diff % spacing);
- U16_GRAND_ALLOC.push(&mut pool[index+1]);
- serial_vprintln!("GA: Freeing ({}, {}, {})", index, diff, spacing);
- });
- }
- 3..=4 => {
- U32_GRAND_ALLOC.inner.lock(|pool| {
- let spacing: usize = (pool[2].ptr() as usize) - (pool[1].ptr() as usize);
- let diff: usize = (ptr as usize) - (pool[1].ptr() as usize);
- let index: usize = diff/spacing;
- assert!(index < GRAND_ALLOC_SIZE, "{} is out of the allocation bounds ({})", index, GRAND_ALLOC_SIZE);
- assert_eq!(diff % spacing, 0, "{} is not aligned with the spacings and so it must not have been allocated by the Grand Allocator", diff % spacing);
- U32_GRAND_ALLOC.push(&mut pool[index+1]);
- serial_vprintln!("GA: Freeing ({}, {}, {})", index, diff, spacing);
- });
- }
- 5..=8 => {
- U64_GRAND_ALLOC.inner.lock(|pool| {
- let spacing: usize = (pool[2].ptr() as usize) - (pool[1].ptr() as usize);
- let diff: usize = (ptr as usize) - (pool[1].ptr() as usize);
- let index: usize = diff/spacing;
- assert!(index < GRAND_ALLOC_SIZE, "{} is out of the allocation bounds ({})", index, GRAND_ALLOC_SIZE);
- assert_eq!(diff % spacing, 0, "{} is not aligned with the spacings and so it must not have been allocated by the Grand Allocator", diff % spacing);
- U64_GRAND_ALLOC.push(&mut pool[index+1]);
- serial_vprintln!("GA: Freeing ({}, {}, {})", index, diff, spacing);
- });
- }
- 9..=16 => {
- U128_GRAND_ALLOC.inner.lock(|pool| {
- let spacing: usize = (pool[2].ptr() as usize) - (pool[1].ptr() as usize);
- let diff: usize = (ptr as usize) - (pool[1].ptr() as usize);
- let index: usize = diff/spacing;
- assert!(index < GRAND_ALLOC_SIZE, "{} is out of the allocation bounds ({})", index, GRAND_ALLOC_SIZE);
- assert_eq!(diff % spacing, 0, "{} is not aligned with the spacings and so it must not have been allocated by the Grand Allocator", diff % spacing);
- U128_GRAND_ALLOC.push(&mut pool[index+1]);
- serial_vprintln!("GA: Freeing ({}, {}, {})", index, diff, spacing);
- });
- }
- 17..=32 => {
- U256_GRAND_ALLOC.inner.lock(|pool| {
- let spacing: usize = (pool[2].ptr() as usize) - (pool[1].ptr() as usize);
- let diff: usize = (ptr as usize) - (pool[1].ptr() as usize);
- let index: usize = diff/spacing;
- assert!(index < GRAND_ALLOC_SIZE, "{} is out of the allocation bounds ({})", index, GRAND_ALLOC_SIZE);
- assert_eq!(diff % spacing, 0, "{} is not aligned with the spacings and so it must not have been allocated by the Grand Allocator", diff % spacing);
- U256_GRAND_ALLOC.push(&mut pool[index+1]);
- serial_vprintln!("GA: Freeing ({}, {}, {})", index, diff, spacing);
- });
- }
- 33..=64 => {
- U512_GRAND_ALLOC.inner.lock(|pool| {
- let spacing: usize = (pool[2].ptr() as usize) - (pool[1].ptr() as usize);
- let diff: usize = (ptr as usize) - (pool[1].ptr() as usize);
- let index: usize = diff/spacing;
- assert!(index < GRAND_ALLOC_SIZE, "{} is out of the allocation bounds ({})", index, GRAND_ALLOC_SIZE);
- assert_eq!(diff % spacing, 0, "{} is not aligned with the spacings and so it must not have been allocated by the Grand Allocator", diff % spacing);
- U512_GRAND_ALLOC.push(&mut pool[index+1]);
- serial_vprintln!("GA: Freeing ({}, {}, {})", index, diff, spacing);
- });
- }
- 65..=128 => {
- U1024_GRAND_ALLOC.inner.lock(|pool| {
- let spacing: usize = (pool[2].ptr() as usize) - (pool[1].ptr() as usize);
- let diff: usize = (ptr as usize) - (pool[1].ptr() as usize);
- let index: usize = diff/spacing;
- assert!(index < GRAND_ALLOC_SIZE, "{} is out of the allocation bounds ({})", index, GRAND_ALLOC_SIZE);
- assert_eq!(diff % spacing, 0, "{} is not aligned with the spacings and so it must not have been allocated by the Grand Allocator", diff % spacing);
- U1024_GRAND_ALLOC.push(&mut pool[index+1]);
- serial_vprintln!("GA: Freeing ({}, {}, {})", index, diff, spacing);
- });
- }
- 129..=256 => {
- U2048_GRAND_ALLOC.inner.lock(|pool| {
- let spacing: usize = (pool[2].ptr() as usize) - (pool[1].ptr() as usize);
- let diff: usize = (ptr as usize) - (pool[1].ptr() as usize);
- let index: usize = diff/spacing;
- assert!(index < GRAND_ALLOC_SIZE, "{} is out of the allocation bounds ({})", index, GRAND_ALLOC_SIZE);
- assert_eq!(diff % spacing, 0, "{} is not aligned with the spacings and so it must not have been allocated by the Grand Allocator", diff % spacing);
- U2048_GRAND_ALLOC.push(&mut pool[index+1]);
- serial_vprintln!("GA: Freeing ({}, {}, {})", index, diff, spacing);
- });
- }
- 257..=512 => {
- U4096_GRAND_ALLOC.inner.lock(|pool| {
- let spacing: usize = (pool[2].ptr() as usize) - (pool[1].ptr() as usize);
- let diff: usize = (ptr as usize) - (pool[1].ptr() as usize);
- let index: usize = diff/spacing;
- assert!(index < GRAND_ALLOC_SIZE, "{} is out of the allocation bounds ({})", index, GRAND_ALLOC_SIZE);
- assert_eq!(diff % spacing, 0, "{} is not aligned with the spacings and so it must not have been allocated by the Grand Allocator", diff % spacing);
- U4096_GRAND_ALLOC.push(&mut pool[index+1]);
- serial_vprintln!("GA: Freeing ({}, {}, {})", index, diff, spacing);
- });
- }
- _ => {
- panic!("No deallocators for size {}!", layout.size());
- }
- }
- }
-}
-
-/// # Grand Allocator
-///
-/// The allocator of allocators. It hands out fixed sized memory chunks.
-#[global_allocator]
-pub static ALLOCATOR: GrandAllocator = GrandAllocator {};
-
-/// # Global Allocator
-///
-/// Returns a borrow for the Global Allocator
-pub fn allocator() -> &'static crate::mem::alloc::GrandAllocator {
- serial_vprintln!("AL: Getting global allocator!");
- &crate::mem::alloc::ALLOCATOR
-}
diff --git a/src/mem/types.rs b/src/mem/types.rs
deleted file mode 100644
index ed22132..0000000
--- a/src/mem/types.rs
+++ /dev/null
@@ -1,54 +0,0 @@
-/// # u256 struct
-///
-/// 256 bit size field
-#[derive(Copy, Clone)]
-pub struct U256(u128, u128);
-impl U256 {
- pub const fn new() -> Self {
- U256(0, 0)
- }
-}
-
-/// # u512 struct
-///
-/// 512 bit size field
-#[derive(Copy, Clone)]
-pub struct U512(U256, U256);
-impl U512 {
- pub const fn new() -> Self {
- U512(U256::new(), U256::new())
- }
-}
-
-/// # u1024 struct
-///
-/// 1024 bit size field
-#[derive(Copy, Clone)]
-pub struct U1024(U512, U512);
-impl U1024 {
- pub const fn new() -> Self {
- U1024(U512::new(), U512::new())
- }
-}
-
-/// # u2048 struct
-///
-/// 2048 bit size field
-#[derive(Copy, Clone)]
-pub struct U2048(U1024, U1024);
-impl U2048 {
- pub const fn new() -> Self {
- U2048(U1024::new(), U1024::new())
- }
-}
-
-/// # u4096 struct
-///
-/// 4096 bit size field
-#[derive(Copy, Clone)]
-pub struct U4096(U2048, U2048);
-impl U4096 {
- pub const fn new() -> Self {
- U4096(U2048::new(), U2048::new())
- }
-}