Struct IWFS_FILE

#[repr(C)]
pub struct IWFS_FILE {
    pub impl_: *mut c_void,
    pub write: Option<unsafe extern "C" fn(f: *mut IWFS_FILE, off: off_t, buf: *const c_void, siz: size_t, sp: *mut size_t) -> iwrc>,
    pub read: Option<unsafe extern "C" fn(f: *mut IWFS_FILE, off: off_t, buf: *mut c_void, siz: size_t, sp: *mut size_t) -> iwrc>,
    pub close: Option<unsafe extern "C" fn(f: *mut IWFS_FILE) -> iwrc>,
    pub sync: Option<unsafe extern "C" fn(f: *mut IWFS_FILE, flags: iwfs_sync_flags) -> iwrc>,
    pub state: Option<unsafe extern "C" fn(f: *mut IWFS_FILE, state: *mut IWFS_FILE_STATE) -> iwrc>,
    pub copy: Option<unsafe extern "C" fn(f: *mut IWFS_FILE, off: off_t, siz: size_t, noff: off_t) -> iwrc>,
}

@struct IWFS_FILE @brief Simple file implementation.

Fields

impl_: *mut c_void

< Implementation specific data

write: Option<unsafe extern "C" fn(f: *mut IWFS_FILE, off: off_t, buf: *const c_void, siz: size_t, sp: *mut size_t) -> iwrc>

@brief Write @a buf bytes into the file

@param f struct IWFS_FILE pointer @param off Offset from start of the file where bytes will write. @param buf Buffer to write. @param siz Number of bytes to write. @param [out] sp Number of bytes actually written @return 0 on success or error code.

read: Option<unsafe extern "C" fn(f: *mut IWFS_FILE, off: off_t, buf: *mut c_void, siz: size_t, sp: *mut size_t) -> iwrc>

@brief Read @a siz bytes into @a buf at the specified offset @a off

@param f struct IWFS_FILE pointer. @param off Offset from start of the file. @param buf Buffer to read into. @param siz Number of bytes to read. @param [out] sp Number of bytes actually read. @return 0 on success or error code.

close: Option<unsafe extern "C" fn(f: *mut IWFS_FILE) -> iwrc>

@brief Closes this file. @return 0 on success or error code.

sync: Option<unsafe extern "C" fn(f: *mut IWFS_FILE, flags: iwfs_sync_flags) -> iwrc>

@brief Sync file data with fs. @param f struct IWFS_FILE pointer. @param opts File sync options.

state: Option<unsafe extern "C" fn(f: *mut IWFS_FILE, state: *mut IWFS_FILE_STATE) -> iwrc>

@brief Return current file state. @param f struct IWFS_FILE pointer. @param [out] state File state placeholder. @return 0 on success or error code.

@see struct IWFS_FILE_STATE

copy: Option<unsafe extern "C" fn(f: *mut IWFS_FILE, off: off_t, siz: size_t, noff: off_t) -> iwrc>

@brief Copy data within a file @param f struct IWFS_FILE pointer. @param off Data offset @param siz Data size @param noff New data offset

Trait Implementations

impl Clone for IWFS_FILE

fn clone(&self) -> IWFS_FILE

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for IWFS_FILE

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

Formats the value using the given formatter.

impl Copy for IWFS_FILE