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KJSON_OPEN(3)		     Library Functions Manual		   KJSON_OPEN(3)

NAME
     kjson_open -- open kcgijson context

LIBRARY
     libkcgijson

SYNOPSIS
     #include <sys/types.h>
     #include <stdarg.h>
     #include <stdint.h>
     #include <kcgi.h>
     #include <kcgijson.h>

     enum kcgi_err
     kjson_open(struct kjsonreq *req, struct kreq *r);

DESCRIPTION
     Zeroes  and  initialises a new context req with the underlying kcgi(3) con-
     text r as allocated with khttp_parse(3) or khttp_fcgi_parse(3).  It  should
     only be called after khttp_body(3).

     The scope open after initialisation is the "root" scope, which accepts sim-
     ilar  content  as	arrays	such as kjson_putstring(3) instead of kjson_put-
     stringp(3).

     If kcgi_writer_disable(3) has been called, the process will be killed  with
     an uncatchable signal.

RETURN VALUES
     Returns an enum kcgi_err indicating the error state.

     KCGI_OK
	  Success (not an error).

     KCGI_ENOMEM
	  Internal memory allocation failure.

     KCGI_HUP
	  The  output  connection has been terminated.	For FastCGI connections,
	  the current connection should be released with khttp_free(3) and parse
	  loop reentered.

     KCGI_FORM
	  The connection is still expecting headers with  khttp_head(3).   Indi-
	  cates  that  khttp_body(3)  did not return with success or was not in-
	  voked.  For FastCGI connections, the current connection should be  re-
	  leased with khttp_free(3) and parse loop reentered.

     KCGI_SYSTEM
	  Internal system error writing to the output stream.

EXAMPLES
     The  following  outputs  a simple JSON page.  It assumes r is a struct kreq
     pointer.  For brevity, it does not do any error checking.

	   khttp_head(r, kresps[KRESP_STATUS],
	     "%s", khttps[KHTTP_200]);
	   khttp_head(r, kresps[KRESP_CONTENT_TYPE],
	     "%s", kmimetypes[KMIME_APP_JSON]);
	   khttp_body(r);
	   kjson_open(&req, r);
	   kjson_obj_open(&req);
	   kjson_putstringp(&req, "foo", "bar");
	   kjson_close(&req);

SEE ALSO
     kcgijson(3)

AUTHORS
     Written by Kristaps Dzonsons <kristaps@bsd.lv>.

FreeBSD ports 15.quarterly	   $Mdocdate$			   KJSON_OPEN(3)

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