pub struct SpooledTempFile { /* private fields */ }
Expand description
An object that behaves like a regular temporary file, but keeps data in memory until it reaches a configured size, at which point the data is written to a temporary file on disk, and further operations use the file on disk.
Implementations§
Source§impl SpooledTempFile
impl SpooledTempFile
pub fn new(max_size: usize) -> SpooledTempFile ⓘ
Sourcepub fn roll(&mut self) -> Result<()>
pub fn roll(&mut self) -> Result<()>
Rolls over to a file on disk, regardless of current size. Does nothing if already rolled over.
pub fn set_len(&mut self, size: u64) -> Result<(), Error>
Sourcepub fn into_inner(self) -> SpooledData
pub fn into_inner(self) -> SpooledData
Consumes and returns the inner SpooledData
type.
Trait Implementations§
Source§impl Debug for SpooledTempFile
impl Debug for SpooledTempFile
Source§impl Read for SpooledTempFile
impl Read for SpooledTempFile
Source§fn read(&mut self, buf: &mut [u8]) -> Result<usize>
fn read(&mut self, buf: &mut [u8]) -> Result<usize>
Pull some bytes from this source into the specified buffer, returning
how many bytes were read. Read more
Source§fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize>
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize>
Like
read
, except that it reads into a slice of buffers. Read moreSource§fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>
Reads all bytes until EOF in this source, placing them into
buf
. Read moreSource§fn read_to_string(&mut self, buf: &mut String) -> Result<usize>
fn read_to_string(&mut self, buf: &mut String) -> Result<usize>
Reads all bytes until EOF in this source, appending them to
buf
. Read moreSource§fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>
fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>
Reads the exact number of bytes required to fill
buf
. Read moreSource§fn is_read_vectored(&self) -> bool
fn is_read_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
)Source§fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
read_buf
)Pull some bytes from this source into the specified buffer. Read more
Source§fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
read_buf
)Reads the exact number of bytes required to fill
cursor
. Read more1.0.0 · Source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
Creates a “by reference” adaptor for this instance of
Read
. Read moreSource§impl Seek for SpooledTempFile
impl Seek for SpooledTempFile
Source§fn seek(&mut self, pos: SeekFrom) -> Result<u64>
fn seek(&mut self, pos: SeekFrom) -> Result<u64>
Seek to an offset, in bytes, in a stream. Read more
1.55.0 · Source§fn rewind(&mut self) -> Result<(), Error>
fn rewind(&mut self) -> Result<(), Error>
Rewind to the beginning of a stream. Read more
Source§fn stream_len(&mut self) -> Result<u64, Error>
fn stream_len(&mut self) -> Result<u64, Error>
🔬This is a nightly-only experimental API. (
seek_stream_len
)Returns the length of this stream (in bytes). Read more
Source§impl Write for SpooledTempFile
impl Write for SpooledTempFile
Source§fn write(&mut self, buf: &[u8]) -> Result<usize>
fn write(&mut self, buf: &[u8]) -> Result<usize>
Writes a buffer into this writer, returning how many bytes were written. Read more
Source§fn flush(&mut self) -> Result<()>
fn flush(&mut self) -> Result<()>
Flushes this output stream, ensuring that all intermediately buffered
contents reach their destination. Read more
Source§fn is_write_vectored(&self) -> bool
fn is_write_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
)1.0.0 · Source§fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
Attempts to write an entire buffer into this writer. Read more
Source§fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>
fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
write_all_vectored
)Attempts to write multiple buffers into this writer. Read more
Auto Trait Implementations§
impl Freeze for SpooledTempFile
impl RefUnwindSafe for SpooledTempFile
impl Send for SpooledTempFile
impl Sync for SpooledTempFile
impl Unpin for SpooledTempFile
impl UnwindSafe for SpooledTempFile
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more