详细描述

Transport configuration for the qnx:// QNX native channel transport.

QnxConf binds the qnx:// URL scheme to the QNX Neutrino native IPC primitives (channels and connections). Messaging is performed directly through ChannelCreate / ConnectAttach / MsgSend / MsgReceive without any intermediate broker; this yields deterministic, low-jitter latency suitable for hard real-time workloads. The transport is available only when the binary is compiled for a QNX target.

Supported Node Types

Publisher	Subscriber	Server	Client	Getter	Setter
yes	yes	yes	yes	yes	yes

URL Format: qnx://<address>[?event=<name>]

Component	Description
`address`	QNX channel/topic name (URL host concatenated with path); not empty
`event`	Optional secondary event filter (?event=)

Channel / Connection Topology: Publisher / Server Subscriber / Client

------------------ ------------------------

ChannelCreate(<address>) <---- MsgSend ---- ConnectAttach(<address>)

| |

v v

MsgReceive() loop MsgSend() / pulse

Example: auto pub = vlink::Publisher<MyMsg>::create_unique("qnx://control/cmd");

auto sub = vlink::Subscriber<MyMsg>::create_unique("qnx://control/cmd");

vlink::Publisher::create_unique
static UniquePtr create_unique(const std::string &url_str, InitType type=InitType::kWithInit)
Heap-allocates a Publisher and wraps it in a std::unique_ptr.
Definition: publisher-inl.h:39

vlink::Subscriber::create_unique
static UniquePtr create_unique(const std::string &url_str, InitType type=InitType::kWithInit)
Heap-allocates a Subscriber and wraps it in a std::unique_ptr.
Definition: subscriber-inl.h:39

注解: Compiled only when VLINK_SUPPORT_QNX is defined.; QNX-only transport; not usable on Linux, Windows, or macOS hosts.; is_valid() returns false when address is empty.