cookie_io_functions_t

fopencookie_sys

Type Alias cookie_io_functions_t 

Source 
pub type cookie_io_functions_t = _IO_cookie_io_functions_t;
Expand description

The structure with the cookie function pointers. The tag name of this struct is _IO_cookie_io_functions_t to preserve historic C++ mangled names for functions taking cookie_io_functions_t arguments. That name should not be used in new code.

Aliased Type§

#[repr(C)]
pub struct cookie_io_functions_t {
    pub read: Option<unsafe extern "C" fn(*mut c_void, *mut u8, usize) -> i32>,
    pub write: Option<unsafe extern "C" fn(*mut c_void, *const u8, usize) -> i32>,
    pub seek: Option<unsafe extern "C" fn(*mut c_void, *mut i64, i32) -> i32>,
    pub close: Option<unsafe extern "C" fn(*mut c_void) -> i32>,
}

Fields§

§read: Option<unsafe extern "C" fn(*mut c_void, *mut u8, usize) -> i32>

Read bytes.

§write: Option<unsafe extern "C" fn(*mut c_void, *const u8, usize) -> i32>

Write bytes.

§seek: Option<unsafe extern "C" fn(*mut c_void, *mut i64, i32) -> i32>

Seek/tell file position.

§close: Option<unsafe extern "C" fn(*mut c_void) -> i32>

Close file.