Struct fidl_fuchsia_pkg_ext::cache::Client

pub struct Client { /* private fields */ }

An open connection to a provider of the fuchsia.pkg.PackageCache.

Implementations

impl Client

pub fn from_proxy(proxy: PackageCacheProxy) -> Self

Constructs a client from the given proxy.

pub fn proxy(&self) -> &PackageCacheProxy

Returns a reference to the underlying PackageCacheProxy connection.

pub fn get( &self, meta_far_blob: BlobInfo, gc_protection: GcProtection, ) -> Result<Get, Error>

Opens the package specified by meta_far_blob with the intent to fetch any missing blobs using the returned Get type if needed.

pub async fn get_already_cached( &self, meta_far_blob: BlobId, ) -> Result<PackageDirectory, GetAlreadyCachedError>

Uses PackageCache.Get to obtain the package directory of a package that is already cached (all blobs are already in blobfs). Errors if the package is not already cached. Always uses open package tracking GC protection, because OTA (the only client of Retained GC protection), should never need to get an already cached package.

Compared to get_cached:

• Activates meta_far_blob in the dynamic index
• Must not be called concurrently with the same meta_far_blob

pub async fn get_subpackage( &self, superpackage: BlobId, subpackage: &RelativePackageUrl, ) -> Result<PackageDirectory, GetSubpackageError>

Uses PackageCache.GetSubpackage to obtain the package directory of a subpackage. Errors if there is not an open connection to the superpackage.

Trait Implementations

impl Clone for Client

fn clone(&self) -> Client

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Client

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.