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<h1>Package util</h1>
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<div id="short-nav"> <dl> <dd><code>import "github.com/syndtr/goleveldb/leveldb/util"</code></dd> </dl> <dl> <dd><a href="index.html#pkg-overview" class="overviewLink">Overview</a></dd> <dd><a href="index.html#pkg-index" class="indexLink">Index</a></dd> </dl> </div> <!-- The package's Name is printed as title by the top-level template --> <div id="pkg-overview" class="toggleVisible"> <div class="collapsed"> <h2 class="toggleButton" title="Click to show Overview section">Overview ▹</h2> </div> <div class="expanded"> <h2 class="toggleButton" title="Click to hide Overview section">Overview ▾</h2> <p>Package util provides utilities used throughout leveldb.</p>
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<!-- Table of contents for API; must be named manual-nav to turn off auto nav. --> <div id="manual-nav"> <dl> <dd><a href="index.html#pkg-constants">Constants</a></dd> <dd><a href="index.html#pkg-variables">Variables</a></dd> <dd><a href="index.html#Hash">func Hash(data []byte, seed uint32) uint32</a></dd> <dd><a href="index.html#BasicReleaser">type BasicReleaser</a></dd> <dd> <a href="index.html#BasicReleaser.Release">func (r *BasicReleaser) Release()</a></dd> <dd> <a href="index.html#BasicReleaser.Released">func (r *BasicReleaser) Released() bool</a></dd> <dd> <a href="index.html#BasicReleaser.SetReleaser">func (r *BasicReleaser) SetReleaser(releaser Releaser)</a></dd> <dd><a href="index.html#Buffer">type Buffer</a></dd> <dd> <a href="index.html#NewBuffer">func NewBuffer(buf []byte) *Buffer</a></dd> <dd> <a href="index.html#Buffer.Alloc">func (b *Buffer) Alloc(n int) []byte</a></dd> <dd> <a href="index.html#Buffer.Bytes">func (b *Buffer) Bytes() []byte</a></dd> <dd> <a href="index.html#Buffer.Grow">func (b *Buffer) Grow(n int)</a></dd> <dd> <a href="index.html#Buffer.Len">func (b *Buffer) Len() int</a></dd> <dd> <a href="index.html#Buffer.Next">func (b *Buffer) Next(n int) []byte</a></dd> <dd> <a href="index.html#Buffer.Read">func (b *Buffer) Read(p []byte) (n int, err error)</a></dd> <dd> <a href="index.html#Buffer.ReadByte">func (b *Buffer) ReadByte() (c byte, err error)</a></dd> <dd> <a href="index.html#Buffer.ReadBytes">func (b *Buffer) ReadBytes(delim byte) (line []byte, err error)</a></dd> <dd> <a href="index.html#Buffer.ReadFrom">func (b *Buffer) ReadFrom(r io.Reader) (n int64, err error)</a></dd> <dd> <a href="index.html#Buffer.Reset">func (b *Buffer) Reset()</a></dd> <dd> <a href="index.html#Buffer.String">func (b *Buffer) String() string</a></dd> <dd> <a href="index.html#Buffer.Truncate">func (b *Buffer) Truncate(n int)</a></dd> <dd> <a href="index.html#Buffer.Write">func (b *Buffer) Write(p []byte) (n int, err error)</a></dd> <dd> <a href="index.html#Buffer.WriteByte">func (b *Buffer) WriteByte(c byte) error</a></dd> <dd> <a href="index.html#Buffer.WriteTo">func (b *Buffer) WriteTo(w io.Writer) (n int64, err error)</a></dd> <dd><a href="index.html#BufferPool">type BufferPool</a></dd> <dd> <a href="index.html#NewBufferPool">func NewBufferPool(baseline int) *BufferPool</a></dd> <dd> <a href="index.html#BufferPool.Close">func (p *BufferPool) Close()</a></dd> <dd> <a href="index.html#BufferPool.Get">func (p *BufferPool) Get(n int) []byte</a></dd> <dd> <a href="index.html#BufferPool.Put">func (p *BufferPool) Put(b []byte)</a></dd> <dd> <a href="index.html#BufferPool.String">func (p *BufferPool) String() string</a></dd> <dd><a href="index.html#CRC">type CRC</a></dd> <dd> <a href="index.html#NewCRC">func NewCRC(b []byte) CRC</a></dd> <dd> <a href="index.html#CRC.Update">func (c CRC) Update(b []byte) CRC</a></dd> <dd> <a href="index.html#CRC.Value">func (c CRC) Value() uint32</a></dd> <dd><a href="index.html#NoopReleaser">type NoopReleaser</a></dd> <dd> <a href="index.html#NoopReleaser.Release">func (NoopReleaser) Release()</a></dd> <dd><a href="index.html#Range">type Range</a></dd> <dd> <a href="index.html#BytesPrefix">func BytesPrefix(prefix []byte) *Range</a></dd> <dd><a href="index.html#ReleaseSetter">type ReleaseSetter</a></dd> <dd><a href="index.html#Releaser">type Releaser</a></dd> </dl> </div><!-- #manual-nav -->
<h4>Package files</h4> <p> <span style="font-size:90%"> <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go">buffer.go</a> <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go">buffer_pool.go</a> <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/crc32.go">crc32.go</a> <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/hash.go">hash.go</a> <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/range.go">range.go</a> <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/util.go">util.go</a> </span> </p> </div><!-- .expanded --> </div><!-- #pkg-index -->
<div id="pkg-callgraph" class="toggle" style="display: none"> <div class="collapsed"> <h2 class="toggleButton" title="Click to show Internal Call Graph section">Internal call graph ▹</h2> </div> <!-- .expanded --> <div class="expanded"> <h2 class="toggleButton" title="Click to hide Internal Call Graph section">Internal call graph ▾</h2> <p> In the call graph viewer below, each node is a function belonging to this package and its children are the functions it calls—perhaps dynamically. </p> <p> The root nodes are the entry points of the package: functions that may be called from outside the package. There may be non-exported or anonymous functions among them if they are called dynamically from another package. </p> <p> Click a node to visit that function's source code. From there you can visit its callers by clicking its declaring <code>func</code> token. </p> <p> Functions may be omitted if they were determined to be unreachable in the particular programs or tests that were analyzed. </p> <!-- Zero means show all package entry points. --> <ul style="margin-left: 0.5in" id="callgraph-0" class="treeview"></ul> </div> </div> <!-- #pkg-callgraph -->
<h2 id="pkg-constants">Constants</h2> <pre>const <span id="MinRead">MinRead</span> = 512</pre> <p>MinRead is the minimum slice size passed to a Read call byBuffer.ReadFrom. As long as the Buffer has at least MinRead bytes beyondwhat is required to hold the contents of r, ReadFrom will not grow theunderlying buffer.</p>
<h2 id="pkg-variables">Variables</h2> <pre>var ( <span id="ErrReleased">ErrReleased</span> = <a href="../../../../../errors/index.html">errors</a>.<a href="../../../../../errors/index.html#New">New</a>("leveldb: resource already relesed") <span id="ErrHasReleaser">ErrHasReleaser</span> = <a href="../../../../../errors/index.html">errors</a>.<a href="../../../../../errors/index.html#New">New</a>("leveldb: releaser already defined"))</pre> <h2 id="Hash">func <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/hash.go?s=279:321#L4">Hash</a></h2> <pre>func Hash(data []<a href="../../../../../builtin/index.html#byte">byte</a>, seed <a href="../../../../../builtin/index.html#uint32">uint32</a>) <a href="../../../../../builtin/index.html#uint32">uint32</a></pre> <p>Hash return hash of the given data.</p>
<h2 id="BasicReleaser">type <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/util.go?s=1249:1312#L29">BasicReleaser</a></h2> <pre>type BasicReleaser struct { <span class="comment">// contains filtered or unexported fields</span>}</pre> <p>BasicReleaser provides basic implementation of Releaser and ReleaseSetter.</p>
<h3 id="BasicReleaser.Release">func (*BasicReleaser) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/util.go?s=1477:1510#L40">Release</a></h3> <pre>func (r *<a href="index.html#BasicReleaser">BasicReleaser</a>) Release()</pre> <p>Release implements Releaser.Release.</p>
<h3 id="BasicReleaser.Released">func (*BasicReleaser) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/util.go?s=1373:1412#L35">Released</a></h3> <pre>func (r *<a href="index.html#BasicReleaser">BasicReleaser</a>) Released() <a href="../../../../../builtin/index.html#bool">bool</a></pre> <p>Released returns whether Release method already called.</p>
<h3 id="BasicReleaser.SetReleaser">func (*BasicReleaser) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/util.go?s=1683:1737#L51">SetReleaser</a></h3> <pre>func (r *<a href="index.html#BasicReleaser">BasicReleaser</a>) SetReleaser(releaser <a href="index.html#Releaser">Releaser</a>)</pre> <p>SetReleaser implements ReleaseSetter.SetReleaser.</p>
<h2 id="Buffer">type <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=433:685#L7">Buffer</a></h2> <pre>type Buffer struct { <span class="comment">// contains filtered or unexported fields</span>}</pre> <p>A Buffer is a variable-sized buffer of bytes with Read and Write methods.The zero value for Buffer is an empty buffer ready to use.</p>
<h3 id="NewBuffer">func <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=9217:9251#L283">NewBuffer</a></h3> <pre>func NewBuffer(buf []<a href="../../../../../builtin/index.html#byte">byte</a>) *<a href="index.html#Buffer">Buffer</a></pre> <p>NewBuffer creates and initializes a new Buffer using buf as its initialcontents. It is intended to prepare a Buffer to read existing data. Itcan also be used to size the internal buffer for writing. To do that,buf should have the desired capacity but a length of zero.</p><p>In most cases, new(Buffer) (or just declaring a Buffer variable) issufficient to initialize a Buffer.</p>
<h3 id="Buffer.Alloc">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=3071:3107#L85">Alloc</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) Alloc(n <a href="../../../../../builtin/index.html#int">int</a>) []<a href="../../../../../builtin/index.html#byte">byte</a></pre> <p>Alloc allocs n bytes of slice from the buffer, growing the buffer asneeded. If n is negative, Alloc will panic.If the buffer can't grow it will panic with bytes.ErrTooLarge.</p>
<h3 id="Buffer.Bytes">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=961:992#L17">Bytes</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) Bytes() []<a href="../../../../../builtin/index.html#byte">byte</a></pre> <p>Bytes returns a slice of the contents of the unread portion of the buffer;len(b.Bytes()) == b.Len(). If the caller changes the contents of thereturned slice, the contents of the buffer will change provided thereare no intervening method calls on the Buffer.</p>
<h3 id="Buffer.Grow">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=3505:3533#L98">Grow</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) Grow(n <a href="../../../../../builtin/index.html#int">int</a>)</pre> <p>Grow grows the buffer's capacity, if necessary, to guarantee space foranother n bytes. After Grow(n), at least n bytes can be written to thebuffer without another allocation.If n is negative, Grow will panic.If the buffer can't grow it will panic with bytes.ErrTooLarge.</p>
<h3 id="Buffer.Len">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=1400:1426#L31">Len</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) Len() <a href="../../../../../builtin/index.html#int">int</a></pre> <p>Len returns the number of bytes of the unread portion of the buffer;b.Len() == len(b.Bytes()).</p>
<h3 id="Buffer.Next">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=7427:7462#L226">Next</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) Next(n <a href="../../../../../builtin/index.html#int">int</a>) []<a href="../../../../../builtin/index.html#byte">byte</a></pre> <p>Next returns a slice containing the next n bytes from the buffer,advancing the buffer as if the bytes had been returned by Read.If there are fewer than n bytes in the buffer, Next returns the entire buffer.The slice is only valid until the next call to a read or write method.</p>
<h3 id="Buffer.Read">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=6888:6938#L208">Read</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) Read(p []<a href="../../../../../builtin/index.html#byte">byte</a>) (n <a href="../../../../../builtin/index.html#int">int</a>, err <a href="../../../../../builtin/index.html#error">error</a>)</pre> <p>Read reads the next len(p) bytes from the buffer or until the bufferis drained. The return value n is the number of bytes read. If thebuffer has no data to return, err is io.EOF (unless len(p) is zero);otherwise it is nil.</p>
<h3 id="Buffer.ReadByte">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=7676:7723#L238">ReadByte</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) ReadByte() (c <a href="../../../../../builtin/index.html#byte">byte</a>, err <a href="../../../../../builtin/index.html#error">error</a>)</pre> <p>ReadByte reads and returns the next byte from the buffer.If no byte is available, it returns error io.EOF.</p>
<h3 id="Buffer.ReadBytes">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=8263:8326#L255">ReadBytes</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) ReadBytes(delim <a href="../../../../../builtin/index.html#byte">byte</a>) (line []<a href="../../../../../builtin/index.html#byte">byte</a>, err <a href="../../../../../builtin/index.html#error">error</a>)</pre> <p>ReadBytes reads until the first occurrence of delim in the input,returning a slice containing the data up to and including the delimiter.If ReadBytes encounters an error before finding a delimiter,it returns the data read before the error and the error itself (often io.EOF).ReadBytes returns err != nil if and only if the returned data does not end indelim.</p>
<h3 id="Buffer.ReadFrom">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=4530:4589#L124">ReadFrom</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) ReadFrom(r <a href="../../../../../io/index.html">io</a>.<a href="../../../../../io/index.html#Reader">Reader</a>) (n <a href="../../../../../builtin/index.html#int64">int64</a>, err <a href="../../../../../builtin/index.html#error">error</a>)</pre> <p>ReadFrom reads data from r until EOF and appends it to the buffer, growingthe buffer as needed. The return value n is the number of bytes read. Anyerror except io.EOF encountered during the read is also returned. If thebuffer becomes too large, ReadFrom will panic with bytes.ErrTooLarge.</p>
<h3 id="Buffer.Reset">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=1907:1931#L48">Reset</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) Reset()</pre> <p>Reset resets the buffer so it has no content.b.Reset() is the same as b.Truncate(0).</p>
<h3 id="Buffer.String">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=1155:1187#L21">String</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) String() <a href="../../../../../builtin/index.html#string">string</a></pre> <p>String returns the contents of the unread portion of the bufferas a string. If the Buffer is a nil pointer, it returns "<nil>".</p>
<h3 id="Buffer.Truncate">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=1601:1633#L35">Truncate</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) Truncate(n <a href="../../../../../builtin/index.html#int">int</a>)</pre> <p>Truncate discards all but the first n unread bytes from the buffer.It panics if n is negative or greater than the length of the buffer.</p>
<h3 id="Buffer.Write">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=3860:3911#L109">Write</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) Write(p []<a href="../../../../../builtin/index.html#byte">byte</a>) (n <a href="../../../../../builtin/index.html#int">int</a>, err <a href="../../../../../builtin/index.html#error">error</a>)</pre> <p>Write appends the contents of p to the buffer, growing the buffer asneeded. The return value n is the length of p; err is always nil. If thebuffer becomes too large, Write will panic with bytes.ErrTooLarge.</p>
<h3 id="Buffer.WriteByte">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=6560:6600#L198">WriteByte</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) WriteByte(c <a href="../../../../../builtin/index.html#byte">byte</a>) <a href="../../../../../builtin/index.html#error">error</a></pre> <p>WriteByte appends the byte c to the buffer, growing the buffer as needed.The returned error is always nil, but is included to match bufio.Writer'sWriteByte. If the buffer becomes too large, WriteByte will panic withbytes.ErrTooLarge.</p>
<h3 id="Buffer.WriteTo">func (*Buffer) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer.go?s=5823:5881#L171">WriteTo</a></h3> <pre>func (b *<a href="index.html#Buffer">Buffer</a>) WriteTo(w <a href="../../../../../io/index.html">io</a>.<a href="../../../../../io/index.html#Writer">Writer</a>) (n <a href="../../../../../builtin/index.html#int64">int64</a>, err <a href="../../../../../builtin/index.html#error">error</a>)</pre> <p>WriteTo writes data to w until the buffer is drained or an error occurs.The return value n is the number of bytes written; it always fits into anint, but it is int64 to match the io.WriterTo interface. Any errorencountered during the write is also returned.</p>
<h2 id="BufferPool">type <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go?s=340:658#L12">BufferPool</a></h2> <pre>type BufferPool struct { <span class="comment">// contains filtered or unexported fields</span>}</pre> <p>BufferPool is a 'buffer pool'.</p>
<h3 id="NewBufferPool">func <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go?s=3989:4033#L215">NewBufferPool</a></h3> <pre>func NewBufferPool(baseline <a href="../../../../../builtin/index.html#int">int</a>) *<a href="index.html#BufferPool">BufferPool</a></pre> <p>NewBufferPool creates a new initialized 'buffer pool'.</p>
<h3 id="BufferPool.Close">func (*BufferPool) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go?s=3170:3198#L170">Close</a></h3> <pre>func (p *<a href="index.html#BufferPool">BufferPool</a>) Close()</pre> <h3 id="BufferPool.Get">func (*BufferPool) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go?s=900:938#L46">Get</a></h3> <pre>func (p *<a href="index.html#BufferPool">BufferPool</a>) Get(n <a href="../../../../../builtin/index.html#int">int</a>) []<a href="../../../../../builtin/index.html#byte">byte</a></pre> <p>Get returns buffer with length of n.</p>
<h3 id="BufferPool.Put">func (*BufferPool) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go?s=2931:2965#L148">Put</a></h3> <pre>func (p *<a href="index.html#BufferPool">BufferPool</a>) Put(b []<a href="../../../../../builtin/index.html#byte">byte</a>)</pre> <p>Put adds given buffer to the pool.</p>
<h3 id="BufferPool.String">func (*BufferPool) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go?s=3322:3358#L183">String</a></h3> <pre>func (p *<a href="index.html#BufferPool">BufferPool</a>) String() <a href="../../../../../builtin/index.html#string">string</a></pre> <h2 id="CRC">type <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/crc32.go?s=326:341#L5">CRC</a></h2> <pre>type CRC <a href="../../../../../builtin/index.html#uint32">uint32</a></pre> <p>CRC is a CRC-32 checksum computed using Castagnoli's polynomial.</p>
<h3 id="NewCRC">func <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/crc32.go?s=397:422#L8">NewCRC</a></h3> <pre>func NewCRC(b []<a href="../../../../../builtin/index.html#byte">byte</a>) <a href="index.html#CRC">CRC</a></pre> <p>NewCRC creates a new crc based on the given bytes.</p>
<h3 id="CRC.Update">func (CRC) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/crc32.go?s=501:534#L13">Update</a></h3> <pre>func (c <a href="index.html#CRC">CRC</a>) Update(b []<a href="../../../../../builtin/index.html#byte">byte</a>) <a href="index.html#CRC">CRC</a></pre> <p>Update updates the crc with the given bytes.</p>
<h3 id="CRC.Value">func (CRC) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/crc32.go?s=618:645#L18">Value</a></h3> <pre>func (c <a href="index.html#CRC">CRC</a>) Value() <a href="../../../../../builtin/index.html#uint32">uint32</a></pre> <p>Value returns a masked crc.</p>
<h2 id="NoopReleaser">type <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/util.go?s=1877:1903#L61">NoopReleaser</a></h2> <pre>type NoopReleaser struct{}</pre>
<h3 id="NoopReleaser.Release">func (NoopReleaser) <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/util.go?s=1905:1934#L63">Release</a></h3> <pre>func (<a href="index.html#NoopReleaser">NoopReleaser</a>) Release()</pre> <h2 id="Range">type <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/range.go?s=234:388#L1">Range</a></h2> <pre>type Range struct { <span class="comment">// Start of the key range, include in the range.</span> Start []<a href="../../../../../builtin/index.html#byte">byte</a>
<span class="comment">// Limit of the key range, not include in the range.</span> Limit []<a href="../../../../../builtin/index.html#byte">byte</a>}</pre> <p>Range is a key range.</p>
<h3 id="BytesPrefix">func <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/range.go?s=513:551#L10">BytesPrefix</a></h3> <pre>func BytesPrefix(prefix []<a href="../../../../../builtin/index.html#byte">byte</a>) *<a href="index.html#Range">Range</a></pre> <p>BytesPrefix returns key range that satisfy the given prefix.This only applicable for the standard 'bytes comparer'.</p>
<h2 id="ReleaseSetter">type <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/util.go?s=745:1169#L17">ReleaseSetter</a></h2> <pre>type ReleaseSetter interface { <span class="comment">// SetReleaser associates the given releaser to the resources. The</span> <span class="comment">// releaser will be called once coresponding resources released.</span> <span class="comment">// Calling SetReleaser with nil will clear the releaser.</span> <span class="comment">//</span> <span class="comment">// This will panic if a releaser already present or coresponding</span> <span class="comment">// resource is already released. Releaser should be cleared first</span> <span class="comment">// before assigned a new one.</span> SetReleaser(releaser <a href="index.html#Releaser">Releaser</a>)}</pre> <p>ReleaseSetter is the interface that wraps the basic SetReleaser method.</p>
<h2 id="Releaser">type <a href="http://localhost:6060/src/github.com/syndtr/goleveldb/leveldb/util/util.go?s=498:668#L10">Releaser</a></h2> <pre>type Releaser interface { <span class="comment">// Release releases associated resources. Release should always success</span> <span class="comment">// and can be called multipe times without causing error.</span> Release()}</pre> <p>Releaser is the interface that wraps the basic Release method.</p>
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