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https://github.com/servo/servo.git
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7964a4f582
This dependency was forked in ##20641 in order to fix the Android build. Years have gone by and it's quite likely that many things have changed in the Android toolchain and these dependencies. We can sort out this issue when getting the Android build working -- or if all else fails, disable jemalloc for Android. In the meantime, unfork the dependency and upgrade it. Fixes #20645.
48 lines
1.3 KiB
Rust
48 lines
1.3 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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//! Selecting the default global allocator for Servo
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#[global_allocator]
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static ALLOC: Allocator = Allocator;
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pub use crate::platform::*;
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#[cfg(not(windows))]
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mod platform {
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use std::os::raw::c_void;
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use jemallocator;
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pub use self::jemallocator::Jemalloc as Allocator;
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/// Get the size of a heap block.
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pub unsafe extern "C" fn usable_size(ptr: *const c_void) -> usize {
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jemallocator::usable_size(ptr)
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}
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/// Memory allocation APIs compatible with libc
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pub mod libc_compat {
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pub use jemalloc_sys::{free, malloc, realloc};
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}
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}
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#[cfg(windows)]
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mod platform {
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pub use std::alloc::System as Allocator;
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use std::os::raw::c_void;
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use winapi::um::heapapi::{GetProcessHeap, HeapSize, HeapValidate};
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/// Get the size of a heap block.
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pub unsafe extern "C" fn usable_size(mut ptr: *const c_void) -> usize {
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let heap = GetProcessHeap();
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if HeapValidate(heap, 0, ptr) == 0 {
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ptr = *(ptr as *const *const c_void).offset(-1);
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}
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HeapSize(heap, 0, ptr) as usize
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}
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}
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