Module config

Compile-time configuration.

trouble has some configuration settings that are set at compile time.

They can be set in two ways:

• Via Cargo features: enable a feature like <name>-<value>. name must be in lowercase and use dashes instead of underscores. For example. l2cap-rx-queue-size-4. Only a selection of values is available, check Cargo.toml for the list.
• Via environment variables at build time: set the variable named TROUBLE_HOST_<value>. For example TROUBLE_HOST_L2CAP_RX_QUEUE_SIZE=1 cargo build. You can also set them in the [env] section of .cargo/config.toml. Any value can be set, unlike with Cargo features.

Environment variables take precedence over Cargo features. If two Cargo features are enabled for the same setting with different values, compilation fails.

Constants

CONNECTION_EVENT_QUEUE_SIZE

Connection event queue size

GATT_CLIENT_NOTIFICATION_MAX_SUBSCRIBERS

Default: 1.

GATT_CLIENT_NOTIFICATION_QUEUE_SIZE

GATT notification queue size.

L2CAP_RX_PACKET_POOL_SIZE

L2CAP RX packet pool size

L2CAP_RX_QUEUE_SIZE

L2CAP RX queue size

L2CAP_TX_PACKET_POOL_SIZE

L2CAP TX packet pool size

L2CAP_TX_QUEUE_SIZE

L2CAP TX queue size