src/eric7/Documentation/Source/eric7.Utilities.BackgroundClient.html

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1 <!DOCTYPE html>
2 <html><head>
3 <title>eric7.Utilities.BackgroundClient</title>
4 <meta charset="UTF-8">
5 <link rel="stylesheet" href="styles.css">
6 </head>
7 <body>
8 <a NAME="top" ID="top"></a>
9 <h1>eric7.Utilities.BackgroundClient</h1>
10
11 <p>
12 Module implementing a Qt free version of a background client for the various
13 checkers and other python interpreter dependent functions.
14 </p>
15 <h3>Global Attributes</h3>
16
17 <table>
18 <tr><td>None</td></tr>
19 </table>
20 <h3>Classes</h3>
21
22 <table>
23
24 <tr>
25 <td><a href="#BackgroundClient">BackgroundClient</a></td>
26 <td>Class implementing the main part of the background client.</td>
27 </tr>
28 </table>
29 <h3>Functions</h3>
30
31 <table>
32 <tr><td>None</td></tr>
33 </table>
34 <hr />
35 <hr />
36 <a NAME="BackgroundClient" ID="BackgroundClient"></a>
37 <h2>BackgroundClient</h2>
38
39 <p>
40 Class implementing the main part of the background client.
41 </p>
42 <h3>Derived from</h3>
43 None
44 <h3>Class Attributes</h3>
45
46 <table>
47 <tr><td>None</td></tr>
48 </table>
49 <h3>Class Methods</h3>
50
51 <table>
52 <tr><td>None</td></tr>
53 </table>
54 <h3>Methods</h3>
55
56 <table>
57
58 <tr>
59 <td><a href="#BackgroundClient.__init__">BackgroundClient</a></td>
60 <td>Constructor</td>
61 </tr>
62 <tr>
63 <td><a href="#BackgroundClient.__cancelled">__cancelled</a></td>
64 <td>Private method to check for a job cancellation.</td>
65 </tr>
66 <tr>
67 <td><a href="#BackgroundClient.__initClientService">__initClientService</a></td>
68 <td>Private method to import the given module and register it as service.</td>
69 </tr>
70 <tr>
71 <td><a href="#BackgroundClient.__peek">__peek</a></td>
72 <td>Private method to peek the given length of bytes.</td>
73 </tr>
74 <tr>
75 <td><a href="#BackgroundClient.__receive">__receive</a></td>
76 <td>Private method to receive the given length of bytes.</td>
77 </tr>
78 <tr>
79 <td><a href="#BackgroundClient.__send">__send</a></td>
80 <td>Private method to send a job response back to the BackgroundService server.</td>
81 </tr>
82 <tr>
83 <td><a href="#BackgroundClient.run">run</a></td>
84 <td>Public method implementing the main loop of the client.</td>
85 </tr>
86 </table>
87 <h3>Static Methods</h3>
88
89 <table>
90 <tr><td>None</td></tr>
91 </table>
92
93 <a NAME="BackgroundClient.__init__" ID="BackgroundClient.__init__"></a>
94 <h4>BackgroundClient (Constructor)</h4>
95 <b>BackgroundClient</b>(<i>host, port, maxProcs</i>)
96
97 <p>
98 Constructor
99 </p>
100 <dl>
101
102 <dt><i>host</i> (str)</dt>
103 <dd>
104 ip address the background service is listening
105 </dd>
106 <dt><i>port</i> (int)</dt>
107 <dd>
108 port of the background service
109 </dd>
110 <dt><i>maxProcs</i> (int)</dt>
111 <dd>
112 maximum number of CPUs (processes) to use
113 (0 = determined automatically)
114 </dd>
115 </dl>
116 <a NAME="BackgroundClient.__cancelled" ID="BackgroundClient.__cancelled"></a>
117 <h4>BackgroundClient.__cancelled</h4>
118 <b>__cancelled</b>(<i></i>)
119
120 <p>
121 Private method to check for a job cancellation.
122 </p>
123 <dl>
124 <dt>Return:</dt>
125 <dd>
126 flag indicating a cancellation
127 </dd>
128 </dl>
129 <dl>
130 <dt>Return Type:</dt>
131 <dd>
132 bool
133 </dd>
134 </dl>
135 <a NAME="BackgroundClient.__initClientService" ID="BackgroundClient.__initClientService"></a>
136 <h4>BackgroundClient.__initClientService</h4>
137 <b>__initClientService</b>(<i>fn, path, module</i>)
138
139 <p>
140 Private method to import the given module and register it as service.
141 </p>
142 <dl>
143
144 <dt><i>fn</i> (str)</dt>
145 <dd>
146 service name to register
147 </dd>
148 <dt><i>path</i> (str)</dt>
149 <dd>
150 contains the path to the module
151 </dd>
152 <dt><i>module</i> (str)</dt>
153 <dd>
154 name to import
155 </dd>
156 </dl>
157 <dl>
158 <dt>Return:</dt>
159 <dd>
160 text result of the import action
161 </dd>
162 </dl>
163 <dl>
164 <dt>Return Type:</dt>
165 <dd>
166 str
167 </dd>
168 </dl>
169 <a NAME="BackgroundClient.__peek" ID="BackgroundClient.__peek"></a>
170 <h4>BackgroundClient.__peek</h4>
171 <b>__peek</b>(<i>length</i>)
172
173 <p>
174 Private method to peek the given length of bytes.
175 </p>
176 <dl>
177
178 <dt><i>length</i> (int)</dt>
179 <dd>
180 bytes to receive
181 </dd>
182 </dl>
183 <dl>
184 <dt>Return:</dt>
185 <dd>
186 received bytes
187 </dd>
188 </dl>
189 <dl>
190 <dt>Return Type:</dt>
191 <dd>
192 bytes
193 </dd>
194 </dl>
195 <a NAME="BackgroundClient.__receive" ID="BackgroundClient.__receive"></a>
196 <h4>BackgroundClient.__receive</h4>
197 <b>__receive</b>(<i>length</i>)
198
199 <p>
200 Private method to receive the given length of bytes.
201 </p>
202 <dl>
203
204 <dt><i>length</i> (int)</dt>
205 <dd>
206 bytes to receive
207 </dd>
208 </dl>
209 <dl>
210 <dt>Return:</dt>
211 <dd>
212 received bytes or None if connection closed
213 </dd>
214 </dl>
215 <dl>
216 <dt>Return Type:</dt>
217 <dd>
218 bytes
219 </dd>
220 </dl>
221 <a NAME="BackgroundClient.__send" ID="BackgroundClient.__send"></a>
222 <h4>BackgroundClient.__send</h4>
223 <b>__send</b>(<i>fx, fn, data</i>)
224
225 <p>
226 Private method to send a job response back to the BackgroundService
227 server.
228 </p>
229 <dl>
230
231 <dt><i>fx</i> (str)</dt>
232 <dd>
233 remote function name to execute
234 </dd>
235 <dt><i>fn</i> (str)</dt>
236 <dd>
237 filename for identification
238 </dd>
239 <dt><i>data</i> (any basic datatype)</dt>
240 <dd>
241 return value(s)
242 </dd>
243 </dl>
244 <a NAME="BackgroundClient.run" ID="BackgroundClient.run"></a>
245 <h4>BackgroundClient.run</h4>
246 <b>run</b>(<i></i>)
247
248 <p>
249 Public method implementing the main loop of the client.
250 </p>
251 <dl>
252
253 <dt>Raises <b>RuntimeError</b>:</dt>
254 <dd>
255 raised if hashes don't match
256 </dd>
257 </dl>
258 <div align="right"><a href="#top">Up</a></div>
259 <hr />
260 </body></html>

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