pomp_buffer_set_len

libpdraw_sys

Function pomp_buffer_set_len 

Source 
pub unsafe extern "C" fn pomp_buffer_set_len(
    buf: *mut pomp_buffer,
    len: usize,
) -> c_int
Expand description

Set the used length of the buffer. @param buf : buffer. @param len : used length of data (shall be lesser than allocated size). @return 0 in case of success, negative errno value in case of error. -EPERM is returned if the buffer is shared (ref count is greater than 1) or readonly.