#arc #ffi #sync #data-structure

triomphe

A fork of std::sync::Arc with some extra functionality and without weak references (originally servo_arc)

4 releases

Uses old Rust 2015

new 0.1.3 Jun 10, 2021
0.1.2 Jan 10, 2021
0.1.1 May 20, 2019
0.1.0 Dec 5, 2018

#26 in Concurrency

Download history 341/week @ 2021-02-24 446/week @ 2021-03-03 376/week @ 2021-03-10 370/week @ 2021-03-17 366/week @ 2021-03-24 498/week @ 2021-03-31 875/week @ 2021-04-07 643/week @ 2021-04-14 687/week @ 2021-04-21 514/week @ 2021-04-28 674/week @ 2021-05-05 899/week @ 2021-05-12 601/week @ 2021-05-19 615/week @ 2021-05-26 532/week @ 2021-06-02 1085/week @ 2021-06-09

2,541 downloads per month
Used in 34 crates (2 directly)

MIT/Apache

55KB
1K SLoC

Triomphe

Fork of Arc. This has the following advantages over std::sync::Arc:

  • triomphe::Arc doesn't support weak references: we save space by excluding the weak reference count, and we don't do extra read-modify-update operations to handle the possibility of weak references.
  • triomphe::UniqueArc allows one to construct a temporarily-mutable Arc which can be converted to a regular triomphe::Arc later
  • triomphe::OffsetArc can be used transparently from C++ code and is compatible with (and can be converted to/from) triomphe::Arc
  • triomphe::ArcBorrow is functionally similar to &triomphe::Arc<T>, however in memory it's simply &T. This makes it more flexible for FFI; the source of the borrow need not be an Arc pinned on the stack (and can instead be a pointer from C++, or an OffsetArc). Additionally, this helps avoid pointer-chasing.
  • triomphe::Arc has can be constructed for dynamically-sized types via from_header_and_iter
  • triomphe::ThinArc provides thin-pointer Arcs to dynamically sized types
  • triomphe::ArcUnion is union of two triomphe:Arcs which fits inside one word of memory

This crate is a version of servo_arc meant for general community use.

Dependencies

~185–310KB