[−][src]Struct sdl2::rwops::RWops
A structure that provides an abstract interface to stream I/O.
Methods
impl<'a> RWops<'a>
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pub unsafe fn raw(&self) -> *mut SDL_RWops
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ⓘImportant traits for RWops<'a>pub unsafe fn from_ll<'b>(raw: *mut SDL_RWops) -> RWops<'b>
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pub fn from_file<P: AsRef<Path>>(
path: P,
mode: &str
) -> Result<RWops<'static>, String>
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path: P,
mode: &str
) -> Result<RWops<'static>, String>
Creates an SDL file stream.
pub fn from_bytes(buf: &'a [u8]) -> Result<RWops<'a>, String>
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Prepares a read-only memory buffer for use with RWops
.
This method can only fail if the buffer size is zero.
pub fn from_read<T>(
r: &mut T,
buffer: &'a mut Vec<u8>
) -> Result<RWops<'a>, String> where
T: Read + Sized,
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r: &mut T,
buffer: &'a mut Vec<u8>
) -> Result<RWops<'a>, String> where
T: Read + Sized,
Reads a Read
object into a buffer and then passes it to RWops.from_bytes
.
The buffer must be provided to this function and must live as long as the
RWops
, but the RWops
does not take ownership of it.
pub fn from_bytes_mut(buf: &'a mut [u8]) -> Result<RWops<'a>, String>
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Prepares a read-write memory buffer for use with RWops
.
This method can only fail if the buffer size is zero.
pub fn len(&self) -> Option<usize>
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Gets the stream's total size in bytes.
Returns None
if the stream size can't be determined
(either because it doesn't make sense for the stream type, or there was an error).
pub fn is_empty(&self) -> bool
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Trait Implementations
impl<'a> Drop for RWops<'a>
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impl<'a> Read for RWops<'a>
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fn read(&mut self, buf: &mut [u8]) -> Result<usize>
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default fn read_vectored(
&mut self,
bufs: &mut [IoVecMut]
) -> Result<usize, Error>
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&mut self,
bufs: &mut [IoVecMut]
) -> Result<usize, Error>
iovec
)Like read
, except that it reads into a slice of buffers. Read more
unsafe default fn initializer(&self) -> Initializer
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read_initializer
)Determines if this Read
er can work with buffers of uninitialized memory. Read more
default fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>
1.0.0[src]
Read all bytes until EOF in this source, placing them into buf
. Read more
default fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
1.0.0[src]
Read all bytes until EOF in this source, appending them to buf
. Read more
default fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
1.6.0[src]
Read the exact number of bytes required to fill buf
. Read more
default fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Creates a "by reference" adaptor for this instance of Read
. Read more
default fn bytes(self) -> Bytes<Self>
1.0.0[src]
Transforms this Read
instance to an [Iterator
] over its bytes. Read more
default fn chain<R>(self, next: R) -> Chain<Self, R> where
R: Read,
1.0.0[src]
R: Read,
Creates an adaptor which will chain this stream with another. Read more
default fn take(self, limit: u64) -> Take<Self>
1.0.0[src]
Creates an adaptor which will read at most limit
bytes from it. Read more
impl<'a> Write for RWops<'a>
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fn write(&mut self, buf: &[u8]) -> Result<usize>
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fn flush(&mut self) -> Result<()>
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default fn write_vectored(&mut self, bufs: &[IoVec]) -> Result<usize, Error>
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iovec
)Like write
, except that it writes from a slice of buffers. Read more
default fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
1.0.0[src]
Attempts to write an entire buffer into this writer. Read more
default fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>
1.0.0[src]
Writes a formatted string into this writer, returning any error encountered. Read more
default fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Creates a "by reference" adaptor for this instance of Write
. Read more
impl<'a> Seek for RWops<'a>
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fn seek(&mut self, pos: SeekFrom) -> Result<u64>
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default fn stream_len(&mut self) -> Result<u64, Error>
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seek_convenience
)Returns the length of this stream (in bytes). Read more
default fn stream_position(&mut self) -> Result<u64, Error>
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seek_convenience
)Returns the current seek position from the start of the stream. Read more
Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,