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<h1>Module <a href="type_Rpc_packer.html">Rpc_packer</a></h1>
<pre><span id="MODULERpc_packer"><span class="keyword">module</span> Rpc_packer</span>: <code class="code">sig</code> <a href="Rpc_packer.html">..</a> <code class="code">end</code></pre><div class="info module top">
<div class="info-desc">
<p>Packing and Unpacking of messages; can be used by both client and
server programs.
RPC messages consists of a frame and of application data. The packing
(and unpacking) of the latter into the frame is done by this module.
The frame is an XDR value with some slots that can be filled with
application data, normally again an XDR value. The slots are represented
using the <code class="code">X_param</code> mechanism provided by the XDR module. As nested X_param
usage is not permitted, this feature is not available for application
data.</p>
</div>
</div>
<hr width="100%">
<pre><span id="TYPEpacked_value"><span class="keyword">type</span> <code class="type"></code>packed_value</span> </pre>
<pre><span id="VALpack_call"><span class="keyword">val</span> pack_call</span> : <code class="type">?encoder:<a href="Netxdr.html#TYPEencoder">Netxdr.encoder</a> -><br> <a href="Rpc_program.html#TYPEt">Rpc_program.t</a> -><br> <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> -><br> string -><br> string -><br> string -> string -> string -> <a href="Netxdr.html#TYPExdr_value">Netxdr.xdr_value</a> -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre><p>Packs the call and returns a <code class="code">packed_value</code> that wraps the message
string</p>
<pre><span id="VALpack_call_pseudo"><span class="keyword">val</span> pack_call_pseudo</span> : <code class="type"><a href="Rpc_program.html#TYPEt">Rpc_program.t</a> -><br> <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> -><br> string -><br> string -><br> string -> string -> string -> <a href="Netxdr.html#TYPExdr_value">Netxdr.xdr_value</a> -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre><p>Packs the call and returns a <code class="code">packed_value</code> that contains the arguments
as they are (i.e. not encoded as string).</p>
<pre><span id="VALpack_call_gssapi_header"><span class="keyword">val</span> pack_call_gssapi_header</span> : <code class="type"><a href="Rpc_program.html#TYPEt">Rpc_program.t</a> -><br> <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> -> string -> string -> string -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre><div class="info ">
<div class="info-desc">
<p>for GSS-API - packs the call header up to the credentials</p>
</div>
</div>
<pre><span id="VALunpack_call"><span class="keyword">val</span> unpack_call</span> : <code class="type">?mstring_factories:<a href="Netxdr_mstring.html#TYPEnamed_mstring_factories">Netxdr_mstring.named_mstring_factories</a> -><br> ?decoder:<a href="Netxdr.html#TYPEdecoder">Netxdr.decoder</a> -><br> <a href="Rpc_program.html#TYPEt">Rpc_program.t</a> -><br> string -><br> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -><br> <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> * <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> * <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> * <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> *<br> string * string * string * string * <a href="Netxdr.html#TYPExdr_value">Netxdr.xdr_value</a></code></pre><p>Unpacks the call completely</p>
<pre><span id="VALunpack_call_frame"><span class="keyword">val</span> unpack_call_frame</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -><br> <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> * <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> * <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> * <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> *<br> string * string * string * string</code></pre><p>Unpacks only the frame of the call.</p>
<pre><span id="VALunpack_call_frame_l"><span class="keyword">val</span> unpack_call_frame_l</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -><br> <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> * <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> * <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> * <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> *<br> string * string * string * string * int</code></pre><p>Unpacks only the frame of the call, returns also the length of the
frame</p>
<pre><span id="VALextract_call_gssapi_header"><span class="keyword">val</span> extract_call_gssapi_header</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> int</code></pre><div class="info ">
<div class="info-desc">
<p>returns the length of the prefix of the message so that the prefix
includes the header until (and including) the credentials.</p>
<p>This function is unavailable for values packed with any of the
<code class="code">pack_*_pseudo</code> functions.</p>
</div>
</div>
<pre><span id="VALunpack_call_body"><span class="keyword">val</span> unpack_call_body</span> : <code class="type">?mstring_factories:<a href="Netxdr_mstring.html#TYPEnamed_mstring_factories">Netxdr_mstring.named_mstring_factories</a> -><br> ?decoder:<a href="Netxdr.html#TYPEdecoder">Netxdr.decoder</a> -><br> <a href="Rpc_program.html#TYPEt">Rpc_program.t</a> -> string -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> int -> <a href="Netxdr.html#TYPExdr_value">Netxdr.xdr_value</a></code></pre><p>Unpacks only the body (the parameters of the procedure call) of
the <code class="code">packed_value</code>. You can pass the length of the call frame as the
position of the body.</p>
<p>This works also for values packed with <code class="code">pack_*_pseudo</code>, and the
position is ignored in this case.</p>
<pre><span id="VALunpack_call_body_raw"><span class="keyword">val</span> unpack_call_body_raw</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> int -> string</code></pre>
<pre><span id="VALunpack_call_body_raw_bytes"><span class="keyword">val</span> unpack_call_body_raw_bytes</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> int -> Stdlib.Bytes.t</code></pre><p>A successful reply means that the procedure call returned a value. An
accepting reply means that authentication was successful but
the procedure could not be evaluated. The third catagory of replies
are rejecting replies.</p>
<pre><span id="VALpack_successful_reply"><span class="keyword">val</span> pack_successful_reply</span> : <code class="type">?encoder:<a href="Netxdr.html#TYPEencoder">Netxdr.encoder</a> -><br> <a href="Rpc_program.html#TYPEt">Rpc_program.t</a> -><br> string -><br> <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> -><br> string -> string -> <a href="Netxdr.html#TYPExdr_value">Netxdr.xdr_value</a> -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre><p>Packs a successful reply</p>
<pre><span id="VALpack_successful_reply_pseudo"><span class="keyword">val</span> pack_successful_reply_pseudo</span> : <code class="type"><a href="Rpc_program.html#TYPEt">Rpc_program.t</a> -><br> string -><br> <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> -><br> string -> string -> <a href="Netxdr.html#TYPExdr_value">Netxdr.xdr_value</a> -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre><p>Packs a successful reply as pseudo message</p>
<pre><span id="VALpack_successful_reply_raw"><span class="keyword">val</span> pack_successful_reply_raw</span> : <code class="type"><a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> -><br> string -> string -> <a href="Netxdr_mstring.mstring-c.html">Netxdr_mstring.mstring</a> list -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre>
<pre><span id="VALpack_accepting_reply"><span class="keyword">val</span> pack_accepting_reply</span> : <code class="type"><a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> -><br> string -> string -> <a href="Rpc.html#TYPEserver_error">Rpc.server_error</a> -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre><p>Packs a server error that counts as accepting call</p>
<pre><span id="VALpack_accepting_reply_pseudo"><span class="keyword">val</span> pack_accepting_reply_pseudo</span> : <code class="type"><a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> -><br> string -> string -> <a href="Rpc.html#TYPEserver_error">Rpc.server_error</a> -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre><p>Same, but returns a pseudo message</p>
<pre><span id="VALpack_rejecting_reply"><span class="keyword">val</span> pack_rejecting_reply</span> : <code class="type"><a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> -> <a href="Rpc.html#TYPEserver_error">Rpc.server_error</a> -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre><p>Packs a server error that counts as rejecting call</p>
<pre><span id="VALpack_rejecting_reply_pseudo"><span class="keyword">val</span> pack_rejecting_reply_pseudo</span> : <code class="type"><a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> -> <a href="Rpc.html#TYPEserver_error">Rpc.server_error</a> -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre><p>Same, but returns a pseudo message</p>
<pre><span id="VALunpack_reply"><span class="keyword">val</span> unpack_reply</span> : <code class="type">?mstring_factories:<a href="Netxdr_mstring.html#TYPEnamed_mstring_factories">Netxdr_mstring.named_mstring_factories</a> -><br> ?decoder:<a href="Netxdr.html#TYPEdecoder">Netxdr.decoder</a> -><br> <a href="Rpc_program.html#TYPEt">Rpc_program.t</a> -><br> string -><br> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -><br> <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a> * string * string * <a href="Netxdr.html#TYPExdr_value">Netxdr.xdr_value</a></code></pre><p><code class="code">unpack_reply</code> may raise:</p>
<ul>
<li><code class="code">Rpc_server</code>: If one of the server error conditions is true. Note that the
call may be "accepted" even if this exception occurs. In this case
use <code class="code">unpack_reply_verfifier</code> to get the verifier.</li>
</ul>
<pre><span id="VALunpack_reply_verifier"><span class="keyword">val</span> unpack_reply_verifier</span> : <code class="type"><a href="Rpc_program.html#TYPEt">Rpc_program.t</a> -> string -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> string * string</code></pre>
<pre><span id="VALpeek_xid"><span class="keyword">val</span> peek_xid</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> <a href="Netnumber.html#TYPEuint4">Netnumber.uint4</a></code></pre><div class="info ">
<div class="info-desc">
<p>Extracts the session ID without analyzing the rest of the message.</p>
</div>
</div>
<pre><span id="VALpeek_auth_error"><span class="keyword">val</span> peek_auth_error</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> <a href="Rpc.html#TYPEserver_error">Rpc.server_error</a> option</code></pre><div class="info ">
<div class="info-desc">
<p>If an authentication error occurs, this function extracts it from the
packed message.</p>
</div>
</div>
<pre><span id="VALlength_of_packed_value"><span class="keyword">val</span> length_of_packed_value</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> int</code></pre>
<pre><span id="VALstring_of_packed_value"><span class="keyword">val</span> string_of_packed_value</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> string</code></pre>
<pre><span id="VALbytes_of_packed_value"><span class="keyword">val</span> bytes_of_packed_value</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> Stdlib.Bytes.t</code></pre>
<pre><span id="VALmstrings_of_packed_value"><span class="keyword">val</span> mstrings_of_packed_value</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> <a href="Netxdr_mstring.mstring-c.html">Netxdr_mstring.mstring</a> list</code></pre><div class="info ">
<div class="info-desc">
<p>Get the packed string. These functions cannot be used for values
returned from any of the <code class="code">pack_*_pseudo</code> functions.</p>
</div>
</div>
<pre><span id="VALpacked_value_of_string"><span class="keyword">val</span> packed_value_of_string</span> : <code class="type">string -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre>
<pre><span id="VALpacked_value_of_bytes"><span class="keyword">val</span> packed_value_of_bytes</span> : <code class="type">Stdlib.Bytes.t -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre>
<pre><span id="VALpacked_value_of_mstrings"><span class="keyword">val</span> packed_value_of_mstrings</span> : <code class="type"><a href="Netxdr_mstring.mstring-c.html">Netxdr_mstring.mstring</a> list -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre>
<pre><span id="VALprefix_of_packed_value"><span class="keyword">val</span> prefix_of_packed_value</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> int -> string</code></pre><div class="info ">
<div class="info-desc">
<p>The first n bytes of the packed value</p>
</div>
</div>
<pre><span id="VALxdr_of_pseudo_value"><span class="keyword">val</span> xdr_of_pseudo_value</span> : <code class="type"><a href="Rpc_packer.html#TYPEpacked_value">packed_value</a> -> <a href="Netxdr.html#TYPExdr_value">Netxdr.xdr_value</a></code></pre>
<pre><span id="VALpseudo_value_of_xdr"><span class="keyword">val</span> pseudo_value_of_xdr</span> : <code class="type"><a href="Netxdr.html#TYPExdr_value">Netxdr.xdr_value</a> -> <a href="Rpc_packer.html#TYPEpacked_value">packed_value</a></code></pre></body></html>
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