NAME

       globus_gram_protocol_framing - Message Framing

        - Message Framing.

SYNOPSIS

   Functions
       int globus_gram_protocol_frame_request (const char *url, const globus_byte_t *msg,
           globus_size_t msgsize, globus_byte_t **framedmsg, globus_size_t *framedsize)
           Create a HTTP-framed copy of a GRAM request.
       int globus_gram_protocol_frame_reply (int code, const globus_byte_t *msg, globus_size_t
           msgsize, globus_byte_t **framedmsg, globus_size_t *framedsize)
           Create a HTTP-framed copy of a GRAM reply.

Detailed Description

       Message Framing.

       The functions in this section frame a GRAM request, query, or reply message with HTTP
       headers compatible with the GRAM2 protocol parsers in GT2 GT3, and GT4.

       These functions should be used when an application wants to control the way that the GRAM
       Protocol messages are sent, while still using the standard message formatting and framing
       routines. An alternative set of functions in the Message I/O section of the manual combine
       message framing with callback-driven I/O.

Function Documentation

   int globus_gram_protocol_frame_reply (int code, const globus_byte_t * msg, globus_size_t
       msgsize, globus_byte_t ** framedmsg, globus_size_t * framedsize)
       Create a HTTP-framed copy of a GRAM reply. The globus_gram_protocol_frame_reply() function
       adds HTTP 1.1 framing around the input message. The framed message includes HTTP headers
       relating the the status of the operation being replied to and the length of the message
       content. The framed message is returned by modifying framedmsg to point to a newly
       allocated string. The integer pointed to by the framedsize parameter is set to the length
       of this message.

       Parameters
           code The HTTP response code to send along with this reply.
           msg A string containing the reply message content to be framed.
           msgsize The length of the string pointed to by msg.
           framedmsg An output parameter which will be set to a copy of the msg string with an
           HTTP reply frame around it.
           framedsize An output parameter which will be set to the length of the framed reply
           string pointed to by framedmsg.

       Returns
           Upon success, globus_gram_protocol_frame_reply() will return GLOBUS_SUCCESS and the
           framedmsg and framedsize parameters will be modified to point to the new framed
           message string and its length respectively. When this occurs, the caller is
           responsible for freeing the string pointed to by framedmsg. If an error occurs, its
           value will returned and the framedmsg and framedsize parameters will be uninitialized.

       Return values
           GLOBUS_SUCCESS Success

   int globus_gram_protocol_frame_request (const char * url, const globus_byte_t * msg,
       globus_size_t msgsize, globus_byte_t ** framedmsg, globus_size_t * framedsize)
       Create a HTTP-framed copy of a GRAM request. The globus_gram_protocol_frame_request()
       function adds HTTP 1.1 framing around the input message. The framed message includes HTTP
       headers relating the the destination URL and the length of the message content. The framed
       message is returned by modifying framedmsg to point to a newly allocated string. The
       integer pointed to by the framedsize parameter is set to the length of this message.

       Parameters
           url The URL of the GRAM resource to contact. This is parsed and used to generate the
           HTTP POST operation destination and the Host HTTP header.
           msg A string containing the message content to be framed.
           msgsize The length of the string pointed to by msg
           framedmsg An output parameter which will be set to a copy of the msg string with an
           HTTP frame around it.
           framedsize An output parameter which will be set to the length of the framed message.

       Returns
           Upon success, globus_gram_protocol_frame_request() will return GLOBUS_SUCCESS and the
           framedmsg and framedsize parameters will be modified to point to the new framed
           message string and its length respectively. When this occurs, the caller is
           responsible for freeing the string pointed to by framedmsg. If an error occurs, its
           value will returned and the framedmsg and framedsize parameters will be uninitialized.

       Return values
           GLOBUS_SUCCESS Success
           GLOBUS_GRAM_PROTOCOL_ERROR_INVALID_JOB_CONTACT Invalid job contact

Author

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