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<pre><a name="line-1"></a><span class='hs-comment'>{- arch-tag: Growl log handlers
<a name="line-2"></a>Copyright (C) 2007 John Goerzen <jgoerzen@complete.org>
<a name="line-3"></a>
<a name="line-4"></a>This program is free software; you can redistribute it and/or modify
<a name="line-5"></a>it under the terms of the GNU Lesser General Public License as published by
<a name="line-6"></a>the Free Software Foundation; either version 2.1 of the License, or
<a name="line-7"></a>(at your option) any later version.
<a name="line-8"></a>
<a name="line-9"></a>This program is distributed in the hope that it will be useful,
<a name="line-10"></a>but WITHOUT ANY WARRANTY; without even the implied warranty of
<a name="line-11"></a>MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
<a name="line-12"></a>GNU Lesser General Public License for more details.
<a name="line-13"></a>
<a name="line-14"></a>You should have received a copy of the GNU Lesser General Public License
<a name="line-15"></a>along with this program; if not, write to the Free Software
<a name="line-16"></a>Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
<a name="line-17"></a>-}</span>
<a name="line-18"></a>
<a name="line-19"></a><span class='hs-comment'>{- |
<a name="line-20"></a> Module : System.Log.Handler.Growl
<a name="line-21"></a> Copyright : Copyright (C) 2007 John Goerzen <jgoerzen@complete.org>
<a name="line-22"></a> License : GNU LGPL, version 2.1 or above
<a name="line-23"></a>
<a name="line-24"></a> Maintainer : Richard M. Neswold, Jr. <rich.neswold@gmail.com>
<a name="line-25"></a> Stability : provisional
<a name="line-26"></a> Portability: portable
<a name="line-27"></a>
<a name="line-28"></a>Simple log handlers
<a name="line-29"></a>
<a name="line-30"></a>Written by Richard M. Neswold, Jr. rich.neswold\@gmail.com
<a name="line-31"></a>-}</span>
<a name="line-32"></a>
<a name="line-33"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Log</span><span class='hs-varop'>.</span><span class='hs-conid'>Handler</span><span class='hs-varop'>.</span><span class='hs-conid'>Growl</span><span class='hs-layout'>(</span><span class='hs-varid'>addTarget</span><span class='hs-layout'>,</span> <span class='hs-varid'>growlHandler</span><span class='hs-layout'>)</span>
<a name="line-34"></a> <span class='hs-keyword'>where</span>
<a name="line-35"></a>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>Socket</span>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>BSD</span>
<a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Log</span>
<a name="line-41"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Log</span><span class='hs-varop'>.</span><span class='hs-conid'>Handler</span>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Log</span><span class='hs-varop'>.</span><span class='hs-conid'>Formatter</span>
<a name="line-43"></a>
<a name="line-44"></a><a name="GrowlHandler"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>GrowlHandler</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GrowlHandler</span> <span class='hs-layout'>{</span> <span class='hs-varid'>priority</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Priority</span><span class='hs-layout'>,</span>
<a name="line-45"></a> <span class='hs-varid'>formatter</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>LogFormatter</span> <span class='hs-conid'>GrowlHandler</span><span class='hs-layout'>,</span>
<a name="line-46"></a> <span class='hs-varid'>appName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span><span class='hs-layout'>,</span>
<a name="line-47"></a> <span class='hs-varid'>skt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Socket</span><span class='hs-layout'>,</span>
<a name="line-48"></a> <span class='hs-varid'>targets</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>HostAddress</span><span class='hs-keyglyph'>]</span> <span class='hs-layout'>}</span>
<a name="line-49"></a>
<a name="line-50"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>LogHandler</span> <span class='hs-conid'>GrowlHandler</span> <span class='hs-keyword'>where</span>
<a name="line-51"></a>
<a name="line-52"></a> <span class='hs-varid'>setLevel</span> <span class='hs-varid'>gh</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gh</span> <span class='hs-layout'>{</span> <span class='hs-varid'>priority</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span> <span class='hs-layout'>}</span>
<a name="line-53"></a>
<a name="line-54"></a> <span class='hs-varid'>getLevel</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>priority</span>
<a name="line-55"></a>
<a name="line-56"></a> <span class='hs-varid'>setFormatter</span> <span class='hs-varid'>gh</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gh</span> <span class='hs-layout'>{</span> <span class='hs-varid'>formatter</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-layout'>}</span>
<a name="line-57"></a> <span class='hs-varid'>getFormatter</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>formatter</span>
<a name="line-58"></a>
<a name="line-59"></a> <span class='hs-varid'>emit</span> <span class='hs-varid'>gh</span> <span class='hs-varid'>lr</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>pkt</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>buildNotification</span> <span class='hs-varid'>gh</span> <span class='hs-varid'>nmGeneralMsg</span> <span class='hs-varid'>lr</span>
<a name="line-60"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>mapM_</span> <span class='hs-layout'>(</span><span class='hs-varid'>sendNote</span> <span class='hs-layout'>(</span><span class='hs-varid'>skt</span> <span class='hs-varid'>gh</span><span class='hs-layout'>)</span> <span class='hs-varid'>pkt</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>targets</span> <span class='hs-varid'>gh</span><span class='hs-layout'>)</span>
<a name="line-61"></a>
<a name="line-62"></a> <span class='hs-varid'>close</span> <span class='hs-varid'>gh</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>pkt</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>buildNotification</span> <span class='hs-varid'>gh</span> <span class='hs-varid'>nmClosingMsg</span>
<a name="line-63"></a> <span class='hs-layout'>(</span><span class='hs-conid'>WARNING</span><span class='hs-layout'>,</span> <span class='hs-str'>"Connection closing."</span><span class='hs-layout'>)</span>
<a name="line-64"></a> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>skt</span> <span class='hs-varid'>gh</span>
<a name="line-65"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>mapM_</span> <span class='hs-layout'>(</span><span class='hs-varid'>sendNote</span> <span class='hs-varid'>s</span> <span class='hs-varid'>pkt</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>targets</span> <span class='hs-varid'>gh</span><span class='hs-layout'>)</span> <span class='hs-varop'>>></span> <span class='hs-varid'>sClose</span> <span class='hs-varid'>s</span>
<a name="line-66"></a>
<a name="line-67"></a><a name="sendNote"></a><span class='hs-definition'>sendNote</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Socket</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>HostAddress</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-68"></a><span class='hs-definition'>sendNote</span> <span class='hs-varid'>s</span> <span class='hs-varid'>pkt</span> <span class='hs-varid'>ha</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sendTo</span> <span class='hs-varid'>s</span> <span class='hs-varid'>pkt</span> <span class='hs-layout'>(</span><span class='hs-conid'>SockAddrInet</span> <span class='hs-num'>9887</span> <span class='hs-varid'>ha</span><span class='hs-layout'>)</span>
<a name="line-69"></a>
<a name="line-70"></a><span class='hs-comment'>-- Right now there are two "notification names": "message" and</span>
<a name="line-71"></a><span class='hs-comment'>-- "disconnecting". All log messages are sent using the "message"</span>
<a name="line-72"></a><span class='hs-comment'>-- name. When the handler gets closed properly, the "disconnecting"</span>
<a name="line-73"></a><span class='hs-comment'>-- notification gets sent.</span>
<a name="line-74"></a>
<a name="line-75"></a><a name="nmGeneralMsg"></a><span class='hs-definition'>nmGeneralMsg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-76"></a><span class='hs-definition'>nmGeneralMsg</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"message"</span>
<a name="line-77"></a>
<a name="line-78"></a><a name="nmClosingMsg"></a><span class='hs-definition'>nmClosingMsg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-79"></a><span class='hs-definition'>nmClosingMsg</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"disconnecting"</span>
<a name="line-80"></a>
<a name="line-81"></a><span class='hs-comment'>{- | Creates a Growl handler. Once a Growl handler has been created,
<a name="line-82"></a> machines that are to receive the message have to be specified. -}</span>
<a name="line-83"></a>
<a name="line-84"></a><a name="growlHandler"></a><span class='hs-definition'>growlHandler</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-comment'>-- ^ The name of the service</span>
<a name="line-85"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Priority</span> <span class='hs-comment'>-- ^ Priority of handler</span>
<a name="line-86"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>GrowlHandler</span>
<a name="line-87"></a><span class='hs-definition'>growlHandler</span> <span class='hs-varid'>nm</span> <span class='hs-varid'>pri</span> <span class='hs-keyglyph'>=</span>
<a name="line-88"></a> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>socket</span> <span class='hs-conid'>AF_INET</span> <span class='hs-conid'>Datagram</span> <span class='hs-num'>0</span>
<a name="line-89"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>GrowlHandler</span> <span class='hs-layout'>{</span> <span class='hs-varid'>priority</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pri</span><span class='hs-layout'>,</span> <span class='hs-varid'>appName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nm</span><span class='hs-layout'>,</span> <span class='hs-varid'>formatter</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>nullFormatter</span><span class='hs-layout'>,</span>
<a name="line-90"></a> <span class='hs-varid'>skt</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span><span class='hs-layout'>,</span> <span class='hs-varid'>targets</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>}</span>
<a name="line-91"></a> <span class='hs-layout'>}</span>
<a name="line-92"></a>
<a name="line-93"></a><span class='hs-comment'>-- Converts a Word16 into a string of two characters. The value is</span>
<a name="line-94"></a><span class='hs-comment'>-- emitted in network byte order.</span>
<a name="line-95"></a>
<a name="line-96"></a><a name="emit16"></a><span class='hs-definition'>emit16</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word16</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-97"></a><span class='hs-definition'>emit16</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>h</span><span class='hs-layout'>,</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromEnum</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-varop'>`divMod`</span> <span class='hs-num'>256</span> <span class='hs-keyword'>in</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>chr</span> <span class='hs-varid'>h</span><span class='hs-layout'>,</span> <span class='hs-varid'>chr</span> <span class='hs-varid'>l</span><span class='hs-keyglyph'>]</span>
<a name="line-98"></a>
<a name="line-99"></a><a name="emitLen16"></a><span class='hs-definition'>emitLen16</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-100"></a><span class='hs-definition'>emitLen16</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>emit16</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-varid'>length</span>
<a name="line-101"></a>
<a name="line-102"></a><span class='hs-comment'>-- Takes a Service record and generates a network packet</span>
<a name="line-103"></a><span class='hs-comment'>-- representing the service.</span>
<a name="line-104"></a>
<a name="line-105"></a><a name="buildRegistration"></a><span class='hs-definition'>buildRegistration</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GrowlHandler</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-106"></a><span class='hs-definition'>buildRegistration</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span> <span class='hs-varid'>fields</span>
<a name="line-107"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>fields</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-keyglyph'>[</span><span class='hs-chr'>'\x1'</span><span class='hs-layout'>,</span> <span class='hs-chr'>'\x4'</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-108"></a> <span class='hs-varid'>emitLen16</span> <span class='hs-layout'>(</span><span class='hs-varid'>appName</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-109"></a> <span class='hs-varid'>emitLen8</span> <span class='hs-varid'>appNotes</span><span class='hs-layout'>,</span>
<a name="line-110"></a> <span class='hs-varid'>emitLen8</span> <span class='hs-varid'>appNotes</span><span class='hs-layout'>,</span>
<a name="line-111"></a> <span class='hs-varid'>appName</span> <span class='hs-varid'>s</span><span class='hs-layout'>,</span>
<a name="line-112"></a> <span class='hs-varid'>foldl</span> <span class='hs-varid'>packIt</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>appNotes</span><span class='hs-layout'>,</span>
<a name="line-113"></a> <span class='hs-keyglyph'>[</span><span class='hs-chr'>'\x0'</span> <span class='hs-keyglyph'>..</span> <span class='hs-layout'>(</span><span class='hs-varid'>chr</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>appNotes</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>]</span>
<a name="line-114"></a> <span class='hs-varid'>packIt</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span> <span class='hs-varop'>++</span> <span class='hs-layout'>(</span><span class='hs-varid'>emitLen16</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-varid'>b</span>
<a name="line-115"></a> <span class='hs-varid'>appNotes</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>nmGeneralMsg</span><span class='hs-layout'>,</span> <span class='hs-varid'>nmClosingMsg</span> <span class='hs-keyglyph'>]</span>
<a name="line-116"></a> <span class='hs-varid'>emitLen8</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>chr</span> <span class='hs-varop'>$</span> <span class='hs-varid'>length</span> <span class='hs-varid'>v</span><span class='hs-keyglyph'>]</span>
<a name="line-117"></a>
<a name="line-118"></a><span class='hs-comment'>{- | Adds a remote machine's address to the list of targets that will
<a name="line-119"></a> receive log messages. Calling this function sends a registration
<a name="line-120"></a> packet to the machine. This function will throw an exception if
<a name="line-121"></a> the host name cannot be found. -}</span>
<a name="line-122"></a>
<a name="line-123"></a><a name="addTarget"></a><span class='hs-definition'>addTarget</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HostName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GrowlHandler</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>GrowlHandler</span>
<a name="line-124"></a><span class='hs-definition'>addTarget</span> <span class='hs-varid'>hn</span> <span class='hs-varid'>gh</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span> <span class='hs-varid'>he</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getHostByName</span> <span class='hs-varid'>hn</span>
<a name="line-125"></a> <span class='hs-layout'>;</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>ha</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hostAddress</span> <span class='hs-varid'>he</span>
<a name="line-126"></a> <span class='hs-varid'>sa</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>SockAddrInet</span> <span class='hs-num'>9887</span> <span class='hs-varid'>ha</span>
<a name="line-127"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span> <span class='hs-varid'>sendTo</span> <span class='hs-layout'>(</span><span class='hs-varid'>skt</span> <span class='hs-varid'>gh</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>buildRegistration</span> <span class='hs-varid'>gh</span><span class='hs-layout'>)</span> <span class='hs-varid'>sa</span>
<a name="line-128"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>return</span> <span class='hs-varid'>gh</span> <span class='hs-layout'>{</span> <span class='hs-varid'>targets</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ha</span><span class='hs-conop'>:</span><span class='hs-layout'>(</span><span class='hs-varid'>targets</span> <span class='hs-varid'>gh</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span> <span class='hs-layout'>}</span> <span class='hs-layout'>}</span>
<a name="line-129"></a>
<a name="line-130"></a><span class='hs-comment'>-- Converts a Priority type into the subset of integers needed in the</span>
<a name="line-131"></a><span class='hs-comment'>-- network packet's flag field.</span>
<a name="line-132"></a>
<a name="line-133"></a><a name="toFlags"></a><span class='hs-definition'>toFlags</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Priority</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word16</span>
<a name="line-134"></a><span class='hs-definition'>toFlags</span> <span class='hs-conid'>DEBUG</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>12</span>
<a name="line-135"></a><span class='hs-definition'>toFlags</span> <span class='hs-conid'>INFO</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>10</span>
<a name="line-136"></a><span class='hs-definition'>toFlags</span> <span class='hs-conid'>NOTICE</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-137"></a><span class='hs-definition'>toFlags</span> <span class='hs-conid'>WARNING</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>2</span>
<a name="line-138"></a><span class='hs-definition'>toFlags</span> <span class='hs-conid'>ERROR</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>3</span> <span class='hs-comment'>-- Same as WARNING, but "sticky" bit set</span>
<a name="line-139"></a><span class='hs-definition'>toFlags</span> <span class='hs-conid'>CRITICAL</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>3</span> <span class='hs-comment'>-- Same as WARNING, but "sticky" bit set</span>
<a name="line-140"></a><span class='hs-definition'>toFlags</span> <span class='hs-conid'>ALERT</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>4</span>
<a name="line-141"></a><span class='hs-definition'>toFlags</span> <span class='hs-conid'>EMERGENCY</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>5</span> <span class='hs-comment'>-- Same as ALERT, but "sticky" bit set</span>
<a name="line-142"></a>
<a name="line-143"></a><span class='hs-comment'>-- Creates a network packet containing a notification record.</span>
<a name="line-144"></a>
<a name="line-145"></a><a name="buildNotification"></a><span class='hs-definition'>buildNotification</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GrowlHandler</span>
<a name="line-146"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-147"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>LogRecord</span>
<a name="line-148"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-149"></a><span class='hs-definition'>buildNotification</span> <span class='hs-varid'>gh</span> <span class='hs-varid'>nm</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-varid'>msg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span> <span class='hs-varid'>fields</span>
<a name="line-150"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>fields</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-keyglyph'>[</span><span class='hs-chr'>'\x1'</span><span class='hs-layout'>,</span> <span class='hs-chr'>'\x5'</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-151"></a> <span class='hs-varid'>emit16</span> <span class='hs-layout'>(</span><span class='hs-varid'>toFlags</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-152"></a> <span class='hs-varid'>emitLen16</span> <span class='hs-varid'>nm</span><span class='hs-layout'>,</span>
<a name="line-153"></a> <span class='hs-varid'>emit16</span> <span class='hs-num'>0</span><span class='hs-layout'>,</span>
<a name="line-154"></a> <span class='hs-varid'>emitLen16</span> <span class='hs-varid'>msg</span><span class='hs-layout'>,</span>
<a name="line-155"></a> <span class='hs-varid'>emitLen16</span> <span class='hs-layout'>(</span><span class='hs-varid'>appName</span> <span class='hs-varid'>gh</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-156"></a> <span class='hs-varid'>nm</span><span class='hs-layout'>,</span>
<a name="line-157"></a> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span>
<a name="line-158"></a> <span class='hs-varid'>msg</span><span class='hs-layout'>,</span>
<a name="line-159"></a> <span class='hs-varid'>appName</span> <span class='hs-varid'>gh</span> <span class='hs-keyglyph'>]</span>
</pre></body>
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