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HTTP_DONE(3)		   libdill Library Functions		  HTTP_DONE(3)

NAME
       http_done - half-closes a HTTP connection

SYNOPSIS
	      #include <libdill.h>

	      int http_done(
		  int s,
		  int64_t deadline);

DESCRIPTION
       WARNING:	 This  is experimental functionality and the API may change in
       the future.

       HTTP is an application-level protocol described in RFC 7230.  This  im-
       plementation  handles  only  the	 request/response  exchange.  Whatever
       comes after that	must be	handled	by a different protocol.

       This function closes the	outbound half of an HTTP connection.   Techni-
       cally,  it  sends  a blank line to the peer.  This will,	in turn, cause
       the peer	to get EPIPE error after it has	received all the data.

       Note that HTTP servers rely on getting a	blank line before they send  a
       response	 to  a	request.   Therefore,  client,	after  sending all the
       fields, must use	http_done to inform the	server that it should act upon
       the request.

       s: The HTTP connection handle.

       deadline:  A  point in time when	the operation should time out, in mil-
       liseconds.  Use the now function	to get your current point in time.   0
       means immediate timeout,	i.e., perform the operation if possible	or re-
       turn without blocking if	not.  -1 means no  deadline,  i.e.,  the  call
       will block forever if the operation cannot be performed.

       This  function  is  not	available  if  libdill is compiled with	--dis-
       able-sockets option.

RETURN VALUE
       In case of success the function returns 0.  In case of error it returns
       -1 and sets errno to one	of the values below.

ERRORS
       o EBADF:	Invalid	handle.

       o ECANCELED: Current coroutine was canceled.

       o ENOTSUP: The handle does not support this operation.

       o EPIPE:	The connection was already half-closed.

       o ETIMEDOUT: Deadline was reached.

EXAMPLE
	      int s = tcp_connect(&addr, -1);
	      s	= http_attach(s);
	      http_sendrequest(s, "GET", "/", -1);
	      http_sendfield(s,	"Host",	"www.example.org", -1);
	      http_done(s, -1);
	      char reason[256];
	      http_recvstatus(s, reason, sizeof(reason), -1);
	      while(1) {
		  char name[256];
		  char value[256];
		  int rc = http_recvfield(s, name, sizeof(name), value,	sizeof(value), -1);
		  if(rc	== -1 && errno == EPIPE) break;
	      }
	      s	= http_detach(s, -1);
	      tcp_close(s);

SEE ALSO
       http_attach(3)	http_attach_mem(3)   http_detach(3)  http_recvfield(3)
       http_recvrequest(3)	  http_recvstatus(3)	     http_sendfield(3)
       http_sendrequest(3) http_sendstatus(3) now(3)

libdill								  HTTP_DONE(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLE | SEE ALSO

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