Check the status of the read window
#include <libssh2.h>
unsigned long libssh2_channel_window_read_ex(LIBSSH2_CHANNEL *channel,
unsigned long *read_avail, unsigned long *window_size_initial)
Check the status of the read window. Returns the number of bytes which the remote end may send without overflowing the window limit read_avail (if passed) will be populated with the number of bytes actually available to be read window_size_initial (if passed) will be populated with the window_size_initial as defined by the channel_open request
The number of bytes which the remote end may send without overflowing the window limit