11 unstable releases (4 breaking)
0.4.1 | Sep 28, 2024 |
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0.4.0 | Sep 28, 2024 |
0.3.0 | Apr 18, 2024 |
0.2.2 | Jan 17, 2024 |
0.0.5 | Dec 14, 2023 |
#15 in #publish-subscribe
477 downloads per month
Used in 10 crates
(7 directly)
215KB
3.5K
SLoC
iceoryx2 Building Blocks (BB) Container
This is a support library for iceoryx2 which comes with containers that are compatible with shared memory and can be used to construct custom payload types for inter-process communication.
Most containers come in 3 variations:
FixedSize*Container*
, compile-time fixed size version. The capacity must be known at compile time. Those fixed-size constructs are always self-contained, meaning that the required memory is part of the constructs and usually stored in some kind of array.Relocatable*Container*
, run-time fixed size version that is shared memory compatible. The capacity must be known when the object is created. This object is not movable!*Container*
, run-time fixed size version that is not shared memory compatible but can be moved. The memory is by default stored on the heap.
Example
1. Compile-Time FixedSize Containers
We create a struct consisting of compile-time fixed size containers that can be used for zero copy inter-process communication.
use iceoryx2_bb_container::byte_string::*;
use iceoryx2_bb_container::vec::*;
const TEXT_CAPACITY: usize = 123;
const DATA_CAPACITY: usize = 456;
#[repr(C)]
struct MyMessageType {
some_text: FixedSizeByteString<TEXT_CAPACITY>,
some_data: FixedSizeVec<u64, DATA_CAPACITY>,
}
let my_message = MyMessageType {
some_text: FixedSizeByteString::from_bytes(b"Hello World")?,
some_data: FixedSizeVec::new(),
};
2. Shared Memory Compatible Run-Time FixedSize Containers
Despite that the containers are already implemented, iceoryx2 itself does not yet support run-time fixed size types. It is planned and will be part of an upcoming release.
3. Run-Time FixedSize Containers
We create a struct consisting of run-time fixed size containers. This can be interesting when it shall be used in a safety-critical environment where everything must be pre-allocated to ensure that required memory is always available.
use iceoryx2_bb_container::queue::*;
const QUEUE_CAPACITY: usize = 123;
#[repr(C)]
struct MyType {
some_queue: Queue<u64>,
}
let my_thing = MyType {
some_queue: Queue::new(QUEUE_CAPACITY),
};
Dependencies
~0.4–1.1MB
~23K SLoC