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254 lines
8.6 KiB
254 lines
8.6 KiB
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<title>pbutil - The Go Programming Language</title>
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<link type="text/css" rel="stylesheet" href="../../../../../lib/godoc/style.css">
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<link rel="stylesheet" href="../../../../../lib/godoc/jquery.treeview.css">
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<div id='lowframe' style="position: fixed; bottom: 0; left: 0; height: 0; width: 100%; border-top: thin solid grey; background-color: white; overflow: auto;">
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...
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</div><!-- #lowframe -->
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<div id="topbar" class="wide"><div class="container">
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<div class="top-heading" id="heading-wide"><a href="http://localhost:6060/">The Go Programming Language</a></div>
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<div class="top-heading" id="heading-narrow"><a href="http://localhost:6060/">Go</a></div>
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<a href="index.html#" id="menu-button"><span id="menu-button-arrow">▽</span></a>
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<form method="GET" action="http://localhost:6060/search">
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<a href="http://localhost:6060/doc/">Documents</a>
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<a href="http://localhost:6060/pkg/">Packages</a>
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<a href="http://localhost:6060/project/">The Project</a>
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<div id="page" class="wide">
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<div class="container">
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<h1>Package pbutil</h1>
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<div id="nav"></div>
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<!--
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Copyright 2009 The Go Authors. All rights reserved.
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file.
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-->
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<!--
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Note: Static (i.e., not template-generated) href and id
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attributes start with "pkg-" to make it impossible for
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them to conflict with generated attributes (some of which
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correspond to Go identifiers).
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-->
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<script type='text/javascript'>
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document.ANALYSIS_DATA = null;
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document.CALLGRAPH = null;
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</script>
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<div id="short-nav">
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<dl>
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<dd><code>import "github.com/matttproud/golang_protobuf_extensions/pbutil"</code></dd>
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</dl>
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<dl>
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<dd><a href="index.html#pkg-overview" class="overviewLink">Overview</a></dd>
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<dd><a href="index.html#pkg-index" class="indexLink">Index</a></dd>
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</dl>
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</div>
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<!-- The package's Name is printed as title by the top-level template -->
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<div id="pkg-overview" class="toggleVisible">
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<div class="collapsed">
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<h2 class="toggleButton" title="Click to show Overview section">Overview ▹</h2>
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</div>
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<div class="expanded">
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<h2 class="toggleButton" title="Click to hide Overview section">Overview ▾</h2>
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<p>
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Package pbutil provides record length-delimited Protocol Buffer streaming.
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</p>
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</div>
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</div>
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<div id="pkg-index" class="toggleVisible">
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<div class="collapsed">
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<h2 class="toggleButton" title="Click to show Index section">Index ▹</h2>
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</div>
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<div class="expanded">
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<h2 class="toggleButton" title="Click to hide Index section">Index ▾</h2>
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<!-- Table of contents for API; must be named manual-nav to turn off auto nav. -->
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<div id="manual-nav">
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<dl>
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<dd><a href="index.html#ReadDelimited">func ReadDelimited(r io.Reader, m proto.Message) (n int, err error)</a></dd>
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<dd><a href="index.html#WriteDelimited">func WriteDelimited(w io.Writer, m proto.Message) (n int, err error)</a></dd>
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</dl>
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</div><!-- #manual-nav -->
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<h4>Package files</h4>
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<p>
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<span style="font-size:90%">
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<a href="http://localhost:6060/src/github.com/matttproud/golang_protobuf_extensions/pbutil/decode.go">decode.go</a>
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<a href="http://localhost:6060/src/github.com/matttproud/golang_protobuf_extensions/pbutil/doc.go">doc.go</a>
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<a href="http://localhost:6060/src/github.com/matttproud/golang_protobuf_extensions/pbutil/encode.go">encode.go</a>
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</span>
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</p>
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</div><!-- .expanded -->
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</div><!-- #pkg-index -->
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<div id="pkg-callgraph" class="toggle" style="display: none">
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<div class="collapsed">
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<h2 class="toggleButton" title="Click to show Internal Call Graph section">Internal call graph ▹</h2>
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</div> <!-- .expanded -->
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<div class="expanded">
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<h2 class="toggleButton" title="Click to hide Internal Call Graph section">Internal call graph ▾</h2>
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<p>
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In the call graph viewer below, each node
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is a function belonging to this package
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and its children are the functions it
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calls—perhaps dynamically.
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</p>
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<p>
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The root nodes are the entry points of the
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package: functions that may be called from
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outside the package.
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There may be non-exported or anonymous
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functions among them if they are called
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dynamically from another package.
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</p>
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<p>
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Click a node to visit that function's source code.
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From there you can visit its callers by
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clicking its declaring <code>func</code>
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token.
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</p>
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<p>
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Functions may be omitted if they were
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determined to be unreachable in the
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particular programs or tests that were
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analyzed.
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</p>
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<!-- Zero means show all package entry points. -->
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<ul style="margin-left: 0.5in" id="callgraph-0" class="treeview"></ul>
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</div>
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</div> <!-- #pkg-callgraph -->
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<h2 id="ReadDelimited">func <a href="http://localhost:6060/src/github.com/matttproud/golang_protobuf_extensions/pbutil/decode.go?s=1540:1607#L28">ReadDelimited</a></h2>
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<pre>func ReadDelimited(r <a href="../../../../io/index.html">io</a>.<a href="../../../../io/index.html#Reader">Reader</a>, m <a href="../../../golang/protobuf/proto/index.html">proto</a>.<a href="../../../golang/protobuf/proto/index.html#Message">Message</a>) (n <a href="../../../../builtin/index.html#int">int</a>, err <a href="../../../../builtin/index.html#error">error</a>)</pre>
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<p>
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ReadDelimited decodes a message from the provided length-delimited stream,
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where the length is encoded as 32-bit varint prefix to the message body.
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It returns the total number of bytes read and any applicable error. This is
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roughly equivalent to the companion Java API's
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MessageLite#parseDelimitedFrom. As per the reader contract, this function
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calls r.Read repeatedly as required until exactly one message including its
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prefix is read and decoded (or an error has occurred). The function never
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reads more bytes from the stream than required. The function never returns
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an error if a message has been read and decoded correctly, even if the end
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of the stream has been reached in doing so. In that case, any subsequent
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calls return (0, io.EOF).
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</p>
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<h2 id="WriteDelimited">func <a href="http://localhost:6060/src/github.com/matttproud/golang_protobuf_extensions/pbutil/encode.go?s=1133:1201#L20">WriteDelimited</a></h2>
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<pre>func WriteDelimited(w <a href="../../../../io/index.html">io</a>.<a href="../../../../io/index.html#Writer">Writer</a>, m <a href="../../../golang/protobuf/proto/index.html">proto</a>.<a href="../../../golang/protobuf/proto/index.html#Message">Message</a>) (n <a href="../../../../builtin/index.html#int">int</a>, err <a href="../../../../builtin/index.html#error">error</a>)</pre>
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<p>
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WriteDelimited encodes and dumps a message to the provided writer prefixed
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with a 32-bit varint indicating the length of the encoded message, producing
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a length-delimited record stream, which can be used to chain together
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encoded messages of the same type together in a file. It returns the total
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number of bytes written and any applicable error. This is roughly
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equivalent to the companion Java API's MessageLite#writeDelimitedTo.
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</p>
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<div id="footer">
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Build version go1.6.<br>
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Except as <a href="https://developers.google.com/site-policies#restrictions">noted</a>,
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the content of this page is licensed under the
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Creative Commons Attribution 3.0 License,
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and code is licensed under a <a href="http://localhost:6060/LICENSE">BSD license</a>.<br>
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