1 | #Region "Microsoft.VisualBasic::ecc48fd610cb63e9c7f3889cc31b8ab7, Microsoft.VisualBasic.Core\ApplicationServices\Utils.vb" |
2 | |
3 | ' Author: |
4 | ' |
5 | ' asuka (amethyst.asuka@gcmodeller.org) |
6 | ' xie (genetics@smrucc.org) |
7 | ' xieguigang (xie.guigang@live.com) |
8 | ' |
9 | ' Copyright (c) 2018 GPL3 Licensed |
10 | ' |
11 | ' |
12 | ' GNU GENERAL PUBLIC LICENSE (GPL3) |
13 | ' |
14 | ' |
15 | ' This program is free software: you can redistribute it and/or modify |
16 | ' it under the terms of the GNU General Public License as published by |
17 | ' the Free Software Foundation, either version 3 of the License, or |
18 | ' (at your option) any later version. |
19 | ' |
20 | ' This program is distributed in the hope that it will be useful, |
21 | ' but WITHOUT ANY WARRANTY; without even the implied warranty of |
22 | ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
23 | ' GNU General Public License for more details. |
24 | ' |
25 | ' You should have received a copy of the GNU General Public License |
26 | ' along with this program. If not, see <http://www.gnu.org/licenses/>. |
27 | |
28 | |
29 | |
30 | ' /********************************************************************************/ |
31 | |
32 | ' Summaries: |
33 | |
34 | ' Module Utils |
35 | ' |
36 | ' Function: FormatTicks, TaskRun, (+2 Overloads) Time |
37 | ' |
38 | ' Sub: TryRun |
39 | ' Delegate Function |
40 | ' |
41 | ' Function: CLIPath, CLIToken, FileMimeType, GetMIMEDescrib |
42 | ' |
43 | ' Sub: (+2 Overloads) Wait |
44 | ' |
45 | ' |
46 | ' |
47 | ' /********************************************************************************/ |
48 | |
49 | #End Region |
50 | |
51 | Imports System.Runtime.CompilerServices |
52 | Imports System.Threading |
53 | Imports Microsoft.VisualBasic.CommandLine.Reflection |
54 | Imports Microsoft.VisualBasic.Net.Protocols.ContentTypes |
55 | Imports Microsoft.VisualBasic.Parallel.Tasks |
56 | |
57 | Namespace ApplicationServices |
58 | |
59 | ''' <summary> |
60 | ''' App utils |
61 | ''' </summary> |
62 | Public Module Utils |
63 | |
64 | ''' <summary> |
65 | ''' Call target <see cref="Action"/> delegate, if exception occurs in the action, |
66 | ''' then this function will logs the exception and exit without thorw an exception. |
67 | ''' </summary> |
68 | ''' <param name="task"></param> |
69 | ''' <param name="stack$"></param> |
70 | <Extension> |
71 | Public Sub TryRun(task As Action, <CallerMemberName> Optional stack$ = Nothing) |
72 | Try |
73 | Call task() |
74 | Catch ex As Exception |
75 | Call $"[{stack}] {task.Method.ToString} failure!".Warning |
76 | Call App.LogException(ex) |
77 | End Try |
78 | End Sub |
79 | |
80 | ''' <summary> |
81 | ''' Run background task, if the <see cref="AsyncHandle(Of Exception).GetValue()"/> returns nothing, |
82 | ''' then means the task run no errors. |
83 | ''' </summary> |
84 | ''' <param name="task"></param> |
85 | ''' <param name="stack">进行调用堆栈的上一层的栈名称</param> |
86 | ''' <returns></returns> |
87 | <Extension> Public Function TaskRun(task As Action, <CallerMemberName> Optional stack$ = Nothing) As AsyncHandle(Of Exception) |
88 | Dim handle = Function() As Exception |
89 | Try |
90 | Call task() |
91 | Catch ex As Exception |
92 | Return New Exception(stack, ex) |
93 | End Try |
94 | |
95 | Return Nothing |
96 | End Function |
97 | Return New AsyncHandle(Of Exception)(handle).Run |
98 | End Function |
99 | |
100 | ''' <summary> |
101 | ''' Returns the total executation time of the target <paramref name="work"/>. |
102 | ''' (性能测试工具,函数之中会自动输出整个任务所经历的处理时长) |
103 | ''' </summary> |
104 | ''' <param name="work"> |
105 | ''' Function pointer of the task work that needs to be tested.(需要测试性能的工作对象) |
106 | ''' </param> |
107 | ''' <returns>Returns the total executation time of the target <paramref name="work"/>. ms</returns> |
108 | Public Function Time(work As Action) As Long |
109 | Dim startTick As Long = App.NanoTime |
110 | |
111 | ' -------- start worker --------- |
112 | Call work() |
113 | ' --------- end worker --------- |
114 | |
115 | Dim endTick As Long = App.NanoTime |
116 | Dim t& = (endTick - startTick) / TimeSpan.TicksPerMillisecond |
117 | Return t |
118 | End Function |
119 | |
120 | Public Function Time(Of T)(work As Func(Of T), Optional ByRef ms& = 0, Optional tick As Boolean = True, Optional trace$ = Nothing) As T |
121 | Dim tickTask As AsyncHandle(Of Exception) |
122 | |
123 | If tick Then |
124 | tickTask = Utils.TaskRun( |
125 | Sub() |
126 | Do While tick |
127 | Call Console.Write(".") |
128 | Call Thread.Sleep(1000) |
129 | Loop |
130 | End Sub) |
131 | End If |
132 | |
133 | Dim value As T |
134 | Dim task As Action = Sub() value = work() |
135 | |
136 | task.BENCHMARK(trace) |
137 | tick = False ' 需要使用这个变量的变化来控制 tickTask 里面的过程 |
138 | |
139 | Return value |
140 | End Function |
141 | |
142 | ''' <summary> |
143 | ''' Format ``ms`` for content print. |
144 | ''' </summary> |
145 | ''' <param name="ms"></param> |
146 | ''' <returns></returns> |
147 | <Extension> Public Function FormatTicks(ms&) As String |
148 | If ms > 1000 Then |
149 | Dim s = ms / 1000 |
150 | |
151 | If s < 1000 Then |
152 | Return s & "s" |
153 | Else |
154 | Dim min = s \ 60 |
155 | Return $"{min}min{s Mod 60}s" |
156 | End If |
157 | Else |
158 | Return ms & "ms" |
159 | End If |
160 | End Function |
161 | |
162 | Public Delegate Function WaitHandle() As Boolean |
163 | |
164 | ''' <summary> |
165 | ''' 假若条件判断<paramref name="handle"/>不为真的话,函数会一直阻塞线程,直到条件判断<paramref name="handle"/>为真 |
166 | ''' </summary> |
167 | ''' <param name="handle"></param> |
168 | <Extension> Public Sub Wait(handle As Func(Of Boolean)) |
169 | If handle Is Nothing Then |
170 | Return |
171 | End If |
172 | |
173 | Do While handle() = False |
174 | Call Thread.Sleep(10) |
175 | Call Application.DoEvents() |
176 | Loop |
177 | End Sub |
178 | |
179 | ''' <summary> |
180 | ''' 假若条件判断<paramref name="handle"/>不为真的话,函数会一直阻塞线程,直到条件判断<paramref name="handle"/>为真 |
181 | ''' </summary> |
182 | ''' <param name="handle"></param> |
183 | <Extension> Public Sub Wait(handle As WaitHandle) |
184 | If handle Is Nothing Then |
185 | Return |
186 | End If |
187 | |
188 | Do While handle() = False |
189 | Call Thread.Sleep(10) |
190 | Call Application.DoEvents() |
191 | Loop |
192 | End Sub |
193 | |
194 | ''' <summary> |
195 | ''' If the path string value is already wrappered by quot, then this function will returns the original string (DO_NOTHING). |
196 | ''' (假若命令行之中的文件名参数之中含有空格的话,则可能会造成错误,需要添加一个双引号来消除歧义) |
197 | ''' </summary> |
198 | ''' <param name="path"></param> |
199 | ''' <returns></returns> |
200 | ''' |
201 | <ExportAPI("CLI_PATH")> |
202 | <Extension> Public Function CLIPath(path As String) As String |
203 | If String.IsNullOrEmpty(path) Then |
204 | Return "" |
205 | Else |
206 | path = path.Replace("\", "/") '这个是R、Java、Perl等程序对路径的要求所导致的 |
207 | Return path.CLIToken |
208 | End If |
209 | End Function |
210 | |
211 | ''' <summary> |
212 | ''' <see cref="CLIPath(String)"/>函数为了保持对Linux系统的兼容性会自动替换\为/符号,这个函数则不会执行这个替换 |
213 | ''' </summary> |
214 | ''' <param name="token"></param> |
215 | ''' <returns></returns> |
216 | <Extension> Public Function CLIToken(token As String) As String |
217 | If String.IsNullOrEmpty(token) OrElse Not Len(token) > 2 Then |
218 | Return token |
219 | End If |
220 | |
221 | If token.First = """"c AndAlso token.Last = """"c Then |
222 | Return token |
223 | End If |
224 | If token.Contains(" "c) Then |
225 | token = $"""{token}""" |
226 | End If |
227 | |
228 | Return token |
229 | End Function |
230 | |
231 | ''' <summary> |
232 | ''' ``*.txt -> text``,这个函数是作用于文件的拓展名之上的 |
233 | ''' </summary> |
234 | ''' <param name="ext$"></param> |
235 | ''' <returns></returns> |
236 | <Extension> Public Function GetMIMEDescrib(ext$) As ContentType |
237 | Dim key$ = LCase(ext).Trim("*"c) |
238 | |
239 | If MIME.SuffixTable.ContainsKey(key) Then |
240 | Return MIME.SuffixTable(key) |
241 | Else |
242 | Return MIME.UnknownType |
243 | End If |
244 | End Function |
245 | |
246 | ''' <summary> |
247 | ''' 与<see cref="GetMIMEDescrib(String)"/>所不同的是,这个函数是直接作用于文件路径之上的。 |
248 | ''' </summary> |
249 | ''' <param name="path"></param> |
250 | ''' <returns></returns> |
251 | <MethodImpl(MethodImplOptions.AggressiveInlining)> |
252 | <Extension> |
253 | Public Function FileMimeType(path As String) As ContentType |
254 | Return ("*." & path.ExtensionSuffix).GetMIMEDescrib |
255 | End Function |
256 | End Module |
257 | End Namespace |