unsigned long
libssh2_channel_window_write_ex(LIBSSH2_CHANNEL *channel,
unsigned long *window_size_initial)
DESCRIPTION
Check the status of the write window Returns the number of bytes which may be
safely writen on the channel without blocking. 'window_size_initial' (if
passed) will be populated with the size of the initial window as defined by
the channel_open request
RETURN VALUE
Number of bytes which may be safely writen on the channel without blocking.