Refactor SDSSv1 primitives
Sayan Nandan
8 months ago
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f769175083
commit
843adbaf7e
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/*
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* Created on Thu Jan 18 2024
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*
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* This file is a part of Skytable
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* Skytable (formerly known as TerrabaseDB or Skybase) is a free and open-source
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* NoSQL database written by Sayan Nandan ("the Author") with the
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* vision to provide flexibility in data modelling without compromising
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* on performance, queryability or scalability.
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*
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* Copyright (c) 2024, Sayan Nandan <nandansayan@outlook.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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use std::alloc::{self, Layout};
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pub unsafe fn alloc_layout<T>(layout: Layout) -> *mut T {
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let ptr = alloc::alloc(layout);
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assert!(!ptr.is_null(), "malloc failed");
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ptr as _
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}
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pub unsafe fn alloc_array<T>(l: usize) -> *mut T {
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self::alloc_layout(Layout::array::<T>(l).unwrap_unchecked())
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}
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pub unsafe fn dealloc_layout(ptr: *mut u8, layout: Layout) {
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alloc::dealloc(ptr, layout)
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}
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pub unsafe fn dealloc_array<T>(ptr: *mut T, l: usize) {
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if l != 0 {
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self::dealloc_layout(ptr as *mut u8, Layout::array::<T>(l).unwrap_unchecked())
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}
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}
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pub unsafe fn memcpy<const N: usize>(src: &[u8]) -> [u8; N] {
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let mut dst = [0u8; N];
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src.as_ptr().copy_to_nonoverlapping(dst.as_mut_ptr(), N);
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dst
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}
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@ -0,0 +1,39 @@
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/*
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* Created on Wed Jan 10 2024
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*
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* This file is a part of Skytable
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* Skytable (formerly known as TerrabaseDB or Skybase) is a free and open-source
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* NoSQL database written by Sayan Nandan ("the Author") with the
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* vision to provide flexibility in data modelling without compromising
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* on performance, queryability or scalability.
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*
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* Copyright (c) 2024, Sayan Nandan <nandansayan@outlook.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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/*!
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# SDSS spec
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This module provides traits and types to deal with the SDSS spec, especially headers.
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The static SDSS header block has a special segment that defines the header version which is static and will
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never change across any versions. While the same isn't warranted for the rest of the header, it's exceedingly
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unlikely that we'll ever change the static block.
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The only header that we currently use is [`v1::HeaderV1`].
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*/
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pub mod v1;
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