Recv

   

Declaration:

Function Recv (Sock:Longint;Var Addr;AddrLen,Flags:Longint) : Longint;

Description:

Recv reads at most Addrlen bytes from socket Sock into address Addr. The socket must be in a connected state.

Flags can be one of the following:

1

: Process out-of band data.

4

: Bypass routing, use a direct interface.

??

: Wait for full request or report an error.

The functions returns the number of bytes actually read from the socket, or -1 if a detectable error occurred.

Errors:

Errors are reported in SocketError, and include the following:

SYS_EBADF

The socket descriptor is invalid.

SYS_ENOTCONN

The socket isn't connected.

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:

Send