Collaboration diagram for Socket option definitions:

Defines
#define	APR_SO_LINGER 1
#define	APR_SO_KEEPALIVE 2
#define	APR_SO_DEBUG 4
#define	APR_SO_NONBLOCK 8
#define	APR_SO_REUSEADDR 16
#define	APR_SO_SNDBUF 64
#define	APR_SO_RCVBUF 128
#define	APR_SO_DISCONNECTED 256
#define	APR_TCP_NODELAY 512
#define	APR_TCP_NOPUSH 1024
#define	APR_RESET_NODELAY 2048
#define	APR_INCOMPLETE_READ 4096
#define	APR_INCOMPLETE_WRITE 8192
#define	APR_IPV6_V6ONLY 16384
#define	APR_TCP_DEFER_ACCEPT 32768

Define Documentation

#define APR_INCOMPLETE_READ 4096

Set on non-blocking sockets (timeout != 0) on which the previous read() did not fill a buffer completely. the next apr_socket_recv() will first call select()/poll() rather than going straight into read(). (Can also be set by an application to force a select()/poll() call before the next read, in cases where the app expects that an immediate read would fail.)

Definition at line 81 of file apr_network_io.h.

#define APR_INCOMPLETE_WRITE 8192

like APR_INCOMPLETE_READ, but for write

See also:: APR_INCOMPLETE_READ

Definition at line 92 of file apr_network_io.h.

#define APR_IPV6_V6ONLY 16384

Don't accept IPv4 connections on an IPv6 listening socket.

Definition at line 95 of file apr_network_io.h.

#define APR_RESET_NODELAY 2048

This flag is ONLY set internally when we set APR_TCP_NOPUSH with APR_TCP_NODELAY set to tell us that APR_TCP_NODELAY should be turned on again when NOPUSH is turned off

Definition at line 75 of file apr_network_io.h.

#define APR_SO_DEBUG 4

Debug

Definition at line 65 of file apr_network_io.h.

#define APR_SO_DISCONNECTED 256

Disconnected

Definition at line 70 of file apr_network_io.h.

#define APR_SO_KEEPALIVE 2

Keepalive

Definition at line 64 of file apr_network_io.h.

#define APR_SO_LINGER 1

Linger