Apache Portable Runtime
Defines
Socket option definitions
Network Routines

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 APR_SO_BROADCAST   65536

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.)

#define APR_INCOMPLETE_WRITE   8192

like APR_INCOMPLETE_READ, but for write

See also:
APR_INCOMPLETE_READ
#define APR_IPV6_V6ONLY   16384

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

#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

#define APR_SO_BROADCAST   65536

Allow broadcast

#define APR_SO_DEBUG   4

Debug

#define APR_SO_DISCONNECTED   256

Disconnected

#define APR_SO_KEEPALIVE   2

Keepalive

#define APR_SO_LINGER   1

Linger

#define APR_SO_NONBLOCK   8

Non-blocking IO

#define APR_SO_RCVBUF   128

Receive buffer

#define APR_SO_REUSEADDR   16

Reuse addresses

#define APR_SO_SNDBUF   64

Send buffer

#define APR_TCP_DEFER_ACCEPT   32768

Delay accepting of new connections until data is available.

See also:
apr_socket_accept_filter
#define APR_TCP_NODELAY   512

For SCTP sockets, this is mapped to STCP_NODELAY internally.

#define APR_TCP_NOPUSH   1024

No push

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