add mod_distributor
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@15421 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale
parent
9750c60d3a
commit
b92ca24e10
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@ -0,0 +1,10 @@
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<configuration name="distributor.conf" description="Distributor Configuration">
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<lists>
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<!-- every 10 calls to test you will get foo1 once and foo2 9 times...yes NINE TIMES! -->
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<!-- this is not the same as 100 with 10 and 90 that would do foo1 10 times in a row then foo2 90 times in a row -->
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<list name="test" target-weight="10">
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<node name="foo1" weight="1"/>
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<node name="foo2" weight="9"/>
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</list>
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</lists>
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</configuration>
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@ -0,0 +1,287 @@
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<?xml version="1.0" encoding="Windows-1252"?>
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<VisualStudioProject
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ProjectType="Visual C++"
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Version="9.00"
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Name="mod_distributor"
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ProjectGUID="{11C9BC3D-45E9-46E3-BE84-B8CEE4685E39}"
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RootNamespace="mod_distributor"
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Keyword="Win32Proj"
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TargetFrameworkVersion="131072"
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>
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<Platforms>
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<Platform
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Name="Win32"
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/>
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<Platform
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Name="x64"
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/>
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</Platforms>
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<ToolFiles>
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</ToolFiles>
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<Configurations>
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<Configuration
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Name="Debug|Win32"
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ConfigurationType="2"
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InheritedPropertySheets="..\..\..\..\w32\module_debug.vsprops"
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CharacterSet="2"
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>
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<Tool
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Name="VCPreBuildEventTool"
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||||
/>
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||||
<Tool
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||||
Name="VCCustomBuildTool"
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||||
/>
|
||||
<Tool
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||||
Name="VCXMLDataGeneratorTool"
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||||
/>
|
||||
<Tool
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||||
Name="VCWebServiceProxyGeneratorTool"
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||||
/>
|
||||
<Tool
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||||
Name="VCMIDLTool"
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||||
/>
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||||
<Tool
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||||
Name="VCCLCompilerTool"
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||||
UsePrecompiledHeader="0"
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/>
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<Tool
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Name="VCManagedResourceCompilerTool"
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||||
/>
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<Tool
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Name="VCResourceCompilerTool"
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/>
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<Tool
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||||
Name="VCPreLinkEventTool"
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/>
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<Tool
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Name="VCLinkerTool"
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RandomizedBaseAddress="1"
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DataExecutionPrevention="0"
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/>
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<Tool
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Name="VCALinkTool"
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/>
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<Tool
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Name="VCManifestTool"
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/>
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<Tool
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Name="VCXDCMakeTool"
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/>
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<Tool
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Name="VCBscMakeTool"
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||||
/>
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||||
<Tool
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||||
Name="VCFxCopTool"
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||||
/>
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||||
<Tool
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Name="VCAppVerifierTool"
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/>
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<Tool
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Name="VCPostBuildEventTool"
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/>
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</Configuration>
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<Configuration
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Name="Debug|x64"
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OutputDirectory="$(PlatformName)\$(ConfigurationName)"
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IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
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ConfigurationType="2"
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InheritedPropertySheets="..\..\..\..\w32\module_debug.vsprops"
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CharacterSet="2"
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>
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<Tool
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Name="VCPreBuildEventTool"
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||||
/>
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||||
<Tool
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||||
Name="VCCustomBuildTool"
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||||
/>
|
||||
<Tool
|
||||
Name="VCXMLDataGeneratorTool"
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||||
/>
|
||||
<Tool
|
||||
Name="VCWebServiceProxyGeneratorTool"
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||||
/>
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||||
<Tool
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Name="VCMIDLTool"
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TargetEnvironment="3"
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/>
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<Tool
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Name="VCCLCompilerTool"
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UsePrecompiledHeader="0"
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/>
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<Tool
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Name="VCManagedResourceCompilerTool"
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/>
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<Tool
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Name="VCResourceCompilerTool"
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/>
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<Tool
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Name="VCPreLinkEventTool"
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/>
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<Tool
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Name="VCLinkerTool"
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OutputFile="$(SolutionDir)$(PlatformName)\$(ConfigurationName)/mod/$(ProjectName).dll"
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RandomizedBaseAddress="1"
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DataExecutionPrevention="0"
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TargetMachine="17"
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/>
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<Tool
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Name="VCALinkTool"
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/>
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||||
<Tool
|
||||
Name="VCManifestTool"
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||||
/>
|
||||
<Tool
|
||||
Name="VCXDCMakeTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCBscMakeTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCFxCopTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCAppVerifierTool"
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||||
/>
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||||
<Tool
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Name="VCPostBuildEventTool"
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||||
/>
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</Configuration>
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<Configuration
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Name="Release|Win32"
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ConfigurationType="2"
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InheritedPropertySheets="..\..\..\..\w32\module_release.vsprops"
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CharacterSet="2"
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>
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<Tool
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Name="VCPreBuildEventTool"
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||||
/>
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||||
<Tool
|
||||
Name="VCCustomBuildTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCXMLDataGeneratorTool"
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||||
/>
|
||||
<Tool
|
||||
Name="VCWebServiceProxyGeneratorTool"
|
||||
/>
|
||||
<Tool
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||||
Name="VCMIDLTool"
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||||
/>
|
||||
<Tool
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||||
Name="VCCLCompilerTool"
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||||
UsePrecompiledHeader="0"
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||||
/>
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||||
<Tool
|
||||
Name="VCManagedResourceCompilerTool"
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||||
/>
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||||
<Tool
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||||
Name="VCResourceCompilerTool"
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||||
/>
|
||||
<Tool
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||||
Name="VCPreLinkEventTool"
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||||
/>
|
||||
<Tool
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||||
Name="VCLinkerTool"
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||||
RandomizedBaseAddress="1"
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DataExecutionPrevention="0"
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/>
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<Tool
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Name="VCALinkTool"
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||||
/>
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||||
<Tool
|
||||
Name="VCManifestTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCXDCMakeTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCBscMakeTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCFxCopTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCAppVerifierTool"
|
||||
/>
|
||||
<Tool
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||||
Name="VCPostBuildEventTool"
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||||
/>
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</Configuration>
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<Configuration
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Name="Release|x64"
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OutputDirectory="$(PlatformName)\$(ConfigurationName)"
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IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
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ConfigurationType="2"
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InheritedPropertySheets="..\..\..\..\w32\module_release.vsprops"
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CharacterSet="2"
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>
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<Tool
|
||||
Name="VCPreBuildEventTool"
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||||
/>
|
||||
<Tool
|
||||
Name="VCCustomBuildTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCXMLDataGeneratorTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCWebServiceProxyGeneratorTool"
|
||||
/>
|
||||
<Tool
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||||
Name="VCMIDLTool"
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||||
TargetEnvironment="3"
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||||
/>
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||||
<Tool
|
||||
Name="VCCLCompilerTool"
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||||
UsePrecompiledHeader="0"
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||||
/>
|
||||
<Tool
|
||||
Name="VCManagedResourceCompilerTool"
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||||
/>
|
||||
<Tool
|
||||
Name="VCResourceCompilerTool"
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||||
/>
|
||||
<Tool
|
||||
Name="VCPreLinkEventTool"
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||||
/>
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||||
<Tool
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||||
Name="VCLinkerTool"
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||||
OutputFile="$(SolutionDir)$(PlatformName)\$(ConfigurationName)/mod/$(ProjectName).dll"
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RandomizedBaseAddress="1"
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DataExecutionPrevention="0"
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TargetMachine="17"
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/>
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||||
<Tool
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||||
Name="VCALinkTool"
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||||
/>
|
||||
<Tool
|
||||
Name="VCManifestTool"
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||||
/>
|
||||
<Tool
|
||||
Name="VCXDCMakeTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCBscMakeTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCFxCopTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCAppVerifierTool"
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||||
/>
|
||||
<Tool
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||||
Name="VCPostBuildEventTool"
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||||
/>
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||||
</Configuration>
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</Configurations>
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<References>
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</References>
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<Files>
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<File
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RelativePath=".\mod_distributor.c"
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>
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</File>
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</Files>
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<Globals>
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</Globals>
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</VisualStudioProject>
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@ -0,0 +1,404 @@
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/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005-2009, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Anthony Minessale II <anthm@freeswitch.org>
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* Neal Horman <neal at wanlink dot com>
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*
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*
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* mod_distributor.c -- Framework Demo Module
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*
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*/
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#include <switch.h>
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/* Prototypes */
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SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_distributor_shutdown);
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SWITCH_MODULE_RUNTIME_FUNCTION(mod_distributor_runtime);
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SWITCH_MODULE_LOAD_FUNCTION(mod_distributor_load);
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/* SWITCH_MODULE_DEFINITION(name, load, shutdown, runtime)
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* Defines a switch_loadable_module_function_table_t and a static const char[] modname
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*/
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SWITCH_MODULE_DEFINITION(mod_distributor, mod_distributor_load, mod_distributor_shutdown, NULL);
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struct dist_node {
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char *name;
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int weight;
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int cur_weight;
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struct dist_node *next;
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};
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struct dist_list {
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char *name;
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int target_weight;
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int last;
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int node_count;
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struct dist_node *lastnode;
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struct dist_node *nodes;
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struct dist_list *next;
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};
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static void destroy_node(struct dist_node *node)
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{
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struct dist_node *old;
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while(node) {
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old = node;
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node = node->next;
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if (old->name) {
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free(old->name);
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}
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free(old);
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}
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}
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static void destroy_list(struct dist_list *list)
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{
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struct dist_list *old;
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while(list) {
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old = list;
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list = list->next;
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destroy_node(old->nodes);
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if (old->name) {
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free(old->name);
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}
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free(old);
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}
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}
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static struct {
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switch_mutex_t *mod_lock;
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switch_memory_pool_t *pool;
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struct dist_list *list;
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} globals;
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static int load_config(int reloading)
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{
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struct dist_list *main_list=NULL, *new_list, *old_list=NULL, *lp=NULL;
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switch_status_t status = SWITCH_STATUS_FALSE;
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char *cf = "distributor.conf";
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switch_xml_t cfg, xml, lists, list, param;
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if (!(xml = switch_xml_open_cfg(cf, &cfg, NULL))) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Open of %s failed\n", cf);
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return SWITCH_STATUS_TERM;
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}
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if (!(lists = switch_xml_child(cfg, "lists"))) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't find any lists!\n");
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return status;
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}
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switch_mutex_lock(globals.mod_lock);
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for (list = switch_xml_child(lists, "list"); list; list = list->next) {
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const char *name = switch_xml_attr(list, "name");
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const char *tweight = switch_xml_attr(list, "total-weight");
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struct dist_node *node, *np=NULL;
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int target_weight = 10;
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int accum = 0;
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if (zstr(name)) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Missing NAME!\n");
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continue;
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}
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if (!zstr(tweight)) {
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target_weight = atoi(tweight);
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}
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switch_zmalloc(new_list, sizeof(*new_list));
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new_list->name = strdup(name);
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new_list->last = -1;
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new_list->target_weight = target_weight;
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if (lp) {
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lp->next = new_list;
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} else {
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main_list = new_list;
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}
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lp = new_list;
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for (param = switch_xml_child(list, "node"); param; param = param->next) {
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char *name = (char *) switch_xml_attr_soft(param, "name");
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char *weight_val = (char *) switch_xml_attr_soft(param, "weight");
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int weight = 0, tmp;
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if ((tmp = atoi(weight_val)) < 1) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Weight %d value incorrect, must be > 0\n", tmp);
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continue;
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}
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if (tmp >= lp->target_weight) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Weight %d value incorrect, must be less than %d\n", tmp, lp->target_weight);
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continue;
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}
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if (accum + tmp > lp->target_weight) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Target Weight %d already met, ignoring subsequent entries.\n", lp->target_weight);
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continue;
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}
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accum += tmp;
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weight = lp->target_weight - tmp;
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if (weight < 0 || weight > lp->target_weight) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Weight %d value incorrect, must be between 1 and %d\n", weight, lp->target_weight);
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continue;
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}
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switch_zmalloc(node, sizeof(*node));
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node->name = strdup(name);
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node->weight = node->cur_weight = weight;
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||||
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if (np) {
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||||
np->next = node;
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||||
} else {
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||||
lp->nodes = node;
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}
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||||
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||||
np = node;
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||||
lp->node_count++;
|
||||
}
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||||
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||||
if (accum < lp->target_weight) {
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||||
struct dist_node *np1;
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||||
int remain = lp->target_weight - accum;
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||||
int ea = remain / lp->node_count ? lp->node_count : 1;
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||||
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||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Total weight does not add up to total weight %d\n", lp->target_weight);
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||||
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for(np1 = lp->nodes; np1; np1 = np1->next) {
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np1->weight += lp->target_weight - ea;
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}
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||||
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}
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||||
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||||
}
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if (main_list) {
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old_list = globals.list;
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globals.list = main_list;
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status = SWITCH_STATUS_SUCCESS;
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}
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switch_mutex_unlock(globals.mod_lock);
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if (old_list) {
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||||
destroy_list(old_list);
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||||
}
|
||||
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||||
|
||||
if (xml) {
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||||
switch_xml_free(xml);
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}
|
||||
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||||
return status;
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||||
}
|
||||
|
||||
static int reset_list(struct dist_list *list)
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{
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struct dist_node *np;
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||||
|
||||
for(np = list->nodes; np; np = np->next) {
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||||
np->cur_weight = np->weight;
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||||
}
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list->last = -1;
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list->lastnode = NULL;
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return 0;
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}
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||||
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||||
static struct dist_node *find_next(struct dist_list *list)
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||||
{
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struct dist_node *np, *match = NULL;
|
||||
int x = 0, mx = 0;
|
||||
int matches = 0, loops = 0;
|
||||
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||||
for(;;) {
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||||
|
||||
if (++loops > 1000) {
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||||
break;
|
||||
}
|
||||
|
||||
x = 0;
|
||||
if (list->last >= list->node_count) {
|
||||
list->last = -1;
|
||||
}
|
||||
match = NULL;
|
||||
for(np = list->nodes; np; np = np->next) {
|
||||
if (np->cur_weight < list->target_weight) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s %d/%d\n", np->name, np->cur_weight, list->target_weight);
|
||||
matches++;
|
||||
if (!match && x > list->last) {
|
||||
match = np;
|
||||
mx = x;
|
||||
}
|
||||
}
|
||||
x++;
|
||||
}
|
||||
|
||||
if (match) {
|
||||
match->cur_weight++;
|
||||
list->lastnode = match;
|
||||
list->last = mx;
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Choose %s\n", match->name);
|
||||
return match;
|
||||
}
|
||||
|
||||
if (matches) {
|
||||
list->last = -1;
|
||||
} else {
|
||||
reset_list(list);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
static char *dist_engine(const char *name)
|
||||
{
|
||||
struct dist_node *np = NULL;
|
||||
struct dist_list *lp;
|
||||
char *str = NULL;
|
||||
|
||||
switch_mutex_lock(globals.mod_lock);
|
||||
for(lp = globals.list; lp; lp = lp->next) {
|
||||
if (!strcasecmp(name, lp->name)) {
|
||||
np = find_next(lp);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (np) {
|
||||
str = strdup(np->name);
|
||||
}
|
||||
switch_mutex_unlock(globals.mod_lock);
|
||||
|
||||
return str;
|
||||
|
||||
}
|
||||
|
||||
SWITCH_STANDARD_APP(distributor_exec)
|
||||
{
|
||||
switch_channel_t *channel = switch_core_session_get_channel(session);
|
||||
char *ret = NULL;
|
||||
|
||||
if (zstr(data)) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "distributor requires an argument\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if ((ret = dist_engine(data))) {
|
||||
switch_channel_set_variable(channel, "DISTRIBUTOR", ret);
|
||||
free(ret);
|
||||
}
|
||||
}
|
||||
|
||||
SWITCH_STANDARD_API(distributor_function)
|
||||
{
|
||||
char *ret = NULL;
|
||||
|
||||
if (!zstr(cmd) && (ret = dist_engine(cmd))) {
|
||||
stream->write_function(stream, "%s", ret);
|
||||
free(ret);
|
||||
} else {
|
||||
stream->write_function(stream, "-err");
|
||||
}
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
|
||||
}
|
||||
|
||||
|
||||
SWITCH_STANDARD_API(distributor_ctl_function)
|
||||
{
|
||||
|
||||
if (!zstr(cmd) && !strcasecmp(cmd, "reload")) {
|
||||
if (load_config(SWITCH_TRUE) == SWITCH_STATUS_SUCCESS) {
|
||||
stream->write_function(stream, "+ok reloaded.\n");
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
stream->write_function(stream, "-error!\n");
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
/* Macro expands to: switch_status_t mod_distributor_load(switch_loadable_module_interface_t **module_interface, switch_memory_pool_t *pool) */
|
||||
SWITCH_MODULE_LOAD_FUNCTION(mod_distributor_load)
|
||||
{
|
||||
switch_api_interface_t *api_interface;
|
||||
switch_application_interface_t *app_interface;
|
||||
|
||||
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
|
||||
|
||||
memset(&globals, 0, sizeof(globals));
|
||||
switch_mutex_init(&globals.mod_lock, SWITCH_MUTEX_NESTED, pool);
|
||||
globals.pool = pool;
|
||||
|
||||
load_config(SWITCH_FALSE);
|
||||
|
||||
|
||||
SWITCH_ADD_API(api_interface, "distributor", "Distributor API", distributor_function, "<list name>");
|
||||
SWITCH_ADD_API(api_interface, "distributor_ctl", "Distributor API", distributor_ctl_function, "[reload]");
|
||||
SWITCH_ADD_APP(app_interface, "distributor", "Distributor APP", "Distributor APP", distributor_exec, "<list name>", SAF_SUPPORT_NOMEDIA|SAF_ROUTING_EXEC);
|
||||
|
||||
|
||||
/* indicate that the module should continue to be loaded */
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
/*
|
||||
Called when the system shuts down
|
||||
Macro expands to: switch_status_t mod_distributor_shutdown() */
|
||||
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_distributor_shutdown)
|
||||
{
|
||||
switch_mutex_lock(globals.mod_lock);
|
||||
destroy_list(globals.list);
|
||||
switch_mutex_unlock(globals.mod_lock);
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
/* For Emacs:
|
||||
* Local Variables:
|
||||
* mode:c
|
||||
* indent-tabs-mode:t
|
||||
* tab-width:4
|
||||
* c-basic-offset:4
|
||||
* End:
|
||||
* For VIM:
|
||||
* vim:set softtabstop=4 shiftwidth=4 tabstop=4
|
||||
*/
|
||||
Loading…
Reference in New Issue