Struct JobContext 

pub struct JobContext {
    pub id: JobId,
    pub printer_name: String,
    pub cancel_flag: Arc<AtomicBool>,
    pub document_format: String,
    pub print_quality: Option<u8>,
}

Context passed to a print-job worker so it can observe cancellation and report progress without re-querying the registry.

Fields

id: JobId

printer_name: String

cancel_flag: Arc<AtomicBool>

document_format: String

The document-format the client sent (RFC 8011), e.g. image/pwg-raster or image/jpeg. Defaults to application/octet-stream when the client omits it. The print callback branches on this to pick a decoder.

print_quality: Option<u8>

print-quality (RFC 8011: 3 draft, 4 normal, 5 high), when the client sent it. CUPS derives it from the cupsPrintQuality PPD choice, so on a driverless queue this is the one per-job quality knob that reaches a driver — the generated PPD maps quality only to HWResolution, which collapses to a single value on a fixed-resolution printer, leaving the raster identical for all three.

Implementations

impl JobContext

pub fn is_canceled(&self) -> bool

True once the client has canceled this job. A print callback that loops (e.g. waiting on hardware) should poll this and bail promptly.

Trait Implementations

impl Clone for JobContext

fn clone(&self) -> JobContext

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.