Function transmission_sys::tr_sys_file_map_for_reading

pub unsafe extern "C" fn tr_sys_file_map_for_reading(
    handle: tr_sys_file_t,
    offset: u64,
    size: u64,
    error: *mut *mut tr_error
) -> *mut c_void

@brief Portability wrapper for mmap () for files.

@param[in] handle Valid file descriptor. @param[in] offset Offset in file to map from. @param[in] size Number of bytes to map. @param[out] error Pointer to error object. Optional, pass NULL if you are not interested in error details.

@return Pointer to mapped file data on success, NULL otherwise (with error set accordingly).