AT+i Programmer's Manual - SE Spezial-Electronic AG

13.11 +iSFSH[%] — Flush Socket’s Outbound Data
Syntax: AT+iSFSH[%]:
Parameters:
Command Options:
Result Code:
Direct Socket Interface
Flushes (immediately sends) accumulated data in a socket‘s
outbound buffer.
A TCP/UDP socket handle of an open socket
Must have been obtained by a previous execution of an
AT+iSTCP or AT+iSUDP command during the current
Internet mode session. Or a socket accepted by a listening
socket.
% When the flush-and-acknowledge (%) flag is specified and
is a TCP socket handle, iChip flushes and waits for the
peer receipt acknowledgment of all outstanding outbound data.
Common errors associated with this flag are 215 (carrier lost)
and 203 (socket closed by peer in an orderly manner or did not
receive ACK after repeated attempts to retransmit
unacknowledged data).
I/OK If is a handle to an open socket and, when is a TCP
socket handle, all outbound data has been received (and when
(%) flag specified also acknowledged) by peer.
I/ERROR Otherwise
The Socket Command Abort may be used to abort prematurely.
AT+i Programmer‘s Manual Version 8.21 13-13