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Top Forums Programming TCP trashing data on application close Post 302455813 by Corona688 on Wednesday 22nd of September 2010 12:45:15 PM
Old 09-22-2010
You are enabling non-blocking IO on the socket with ioctl(), meaning, the program won't necessarily wait for it to finish(i.e. block). If you want it to wait for it, don't do that.
 

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libssh2_session_block_directions(3)				  libssh2 manual			       libssh2_session_block_directions(3)

NAME
libssh2_session_block_directions - get directions to wait for SYNOPSIS
#include <libssh2.h> int libssh2_session_block_directions(LIBSSH2_SESSION *session); DESCRIPTION
session - Session instance as returned by libssh2_session_init_ex(3) When any of libssh2 functions return LIBSSH2_ERROR_EAGAIN an application should wait for the socket to have data available for reading or writing. Depending on the return value of libssh2_session_block_directions(3) an application should wait for read, write or both. RETURN VALUE
Returns the set of directions as a binary mask. Can be a combination of: LIBSSH2_SESSION_BLOCK_INBOUND: Inbound direction blocked. LIBSSH2_SESSION_BLOCK_OUTBOUND: Outbound direction blocked. Application should wait for data to be available for socket prior to calling a libssh2 function again. If LIBSSH2_SESSION_BLOCK_INBOUND is set select should contain the session socket in readfds set. Correspondingly in case of LIBSSH2_SESSION_BLOCK_OUTBOUND writefds set should contain the socket. AVAILABILITY
Added in 1.0 libssh2 1.0 1 Oct 2008 libssh2_session_block_directions(3)
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