[Overview][Constants][Types][Procedures and functions][Index] Reference for unit 'Sockets' (#rtl)

fpsend

Send data through socket

Declaration

Source position: socketsh.inc line 164

function fpsend(

  s: cint;

  msg: pointer;

  len: size_t;

  flags: cint

):ssize_t;

Description

fpSend sends Len bytes starting from address Msg to socket S. S must be in a connected state. Options can be passed in Flags.

The function returns the number of bytes sent, or -1 if a detectable error occurred.

Flags can be one of the following:

1
Process out-of band data.
4
Bypass routing, use a direct interface.

Errors

Errors are reported in SocketError, and include the following:

SYS_EBADF
The socket descriptor is invalid.
SYS_ENOTSOCK
The descriptor is not a socket.
SYS_EFAULT
The address is outside your address space.
SYS_EMSGSIZE
The message cannot be sent atomically.
SYS_EWOULDBLOCK
The requested operation would block the process.
SYS_ENOBUFS
The system doesn't have enough free buffers available.

See also

fpRecv

  

Receive data on socket
The latest version of this document can be found at lazarus-ccr.sourceforge.net.