Struct xpcom::interfaces::nsIFileMetadata

#[repr(C)]
pub struct nsIFileMetadata { /* fields omitted */ }

interface nsIFileMetadata : nsISupports

/**
 * An interface that allows you to get some metadata like file size and
 * file last modified time. These methods and attributes can throw
 * NS_BASE_STREAM_WOULD_BLOCK in case the informations are not available yet.
 * If this happens, consider the use of nsIAsyncFileMetadata.
 *
 * If using nsIAsyncFileMetadata, you should retrieve any data via this
 * interface before taking any action that might consume the underlying stream.
 * For example, once Available(), Read(), or nsIAsyncInputStream::AsyncWait()
 * are invoked, these methods may return NS_BASE_STREAM_CLOSED.  This will
 * happen when using IPCBlobInputStream with an underlying file stream, for
 * example.
 */

Methods

impl nsIFileMetadata

pub fn coerce<T: nsIFileMetadataCoerce>(&self) -> &T

Cast this nsIFileMetadata to one of its base interfaces.

impl nsIFileMetadata

pub unsafe fn GetSize(&self, aSize: *mut int64_t) -> nsresult

/**
     * File size in bytes.
     */

readonly attribute long long size;

pub unsafe fn GetLastModified(&self, aLastModified: *mut int64_t) -> nsresult

/**
     * File last modified time in milliseconds from midnight (00:00:00),
     * January 1, 1970 Greenwich Mean Time (GMT).
     */

readonly attribute long long lastModified;

Methods from Deref<Target = nsISupports>

pub fn coerce<T: nsISupportsCoerce>(&self) -> &T

Cast this nsISupports to one of its base interfaces.

pub unsafe fn QueryInterface(
    &self,
    uuid: &nsIID,
    result: *mut *mut c_void
) -> nsresult

void QueryInterface (in nsIIDRef uuid, [iid_is (uuid), retval] out nsQIResult result);

pub unsafe fn AddRef(&self) -> nsrefcnt

[noscript,notxpcom] nsrefcnt AddRef ();

pub unsafe fn Release(&self) -> nsrefcnt

[noscript,notxpcom] nsrefcnt Release ();

Trait Implementations

impl XpCom for nsIFileMetadata

const IID: nsIID

IID: nsIID = nsID(133593572, 38401, 19409, [181, 16, 205, 56, 82, 237, 184, 129])

fn query_interface<T: XpCom>(&self) -> Option<RefPtr<T>>

Perform a QueryInterface call on this object, attempting to dynamically cast it to the requested interface type. Returns Some(RefPtr) if the cast succeeded, and None otherwise.

impl RefCounted for nsIFileMetadata

unsafe fn addref(&self)

Increment the reference count.

unsafe fn release(&self)

Decrement the reference count, potentially freeing backing memory.

impl Deref for nsIFileMetadata

type Target = nsISupports

The resulting type after dereferencing.

fn deref(&self) -> &nsISupports

Dereferences the value.