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3fbff6e620
* Replace custom types with C++11 <cstdint> types * Fix sqlite integer intos and uses * Fix String implicit integer constructors * Escape the enclosing namespace in sqdb * Replace contract checks with assert * Make many header files compile independently * Remove the dependence on beast_core.h in many places * Remove unused or obsolete classes and functions * Remove unused or obsolete macros * Remove unused network functions and files * Remove unused or obsolete classes: - ChildProcess - HighResolutionTimer - InterProcessLock - Throw - TrackedMutex - UntrackedMutex - XmlDocument - XmlElement
83 lines
3.0 KiB
C++
83 lines
3.0 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Portions of this file are from JUCE.
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Copyright (c) 2013 - Raw Material Software Ltd.
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Please visit http://www.juce.com
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_DYNAMICLIBRARY_H_INCLUDED
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#define BEAST_DYNAMICLIBRARY_H_INCLUDED
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namespace beast
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{
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/**
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Handles the opening and closing of DLLs.
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This class can be used to open a DLL and get some function pointers from it.
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Since the DLL is freed when this object is deleted, it's handy for managing
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library lifetimes using RAII.
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*/
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class DynamicLibrary : LeakChecked <DynamicLibrary>, public Uncopyable
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{
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public:
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/** Creates an unopened DynamicLibrary object.
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Call open() to actually open one.
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*/
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DynamicLibrary() noexcept : handle (nullptr) {}
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/**
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*/
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DynamicLibrary (const String& name) : handle (nullptr) { open (name); }
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/** Destructor.
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If a library is currently open, it will be closed when this object is destroyed.
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*/
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~DynamicLibrary() { close(); }
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/** Opens a DLL.
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The name and the method by which it gets found is of course platform-specific, and
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may or may not include a path, depending on the OS.
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If a library is already open when this method is called, it will first close the library
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before attempting to load the new one.
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@returns true if the library was successfully found and opened.
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*/
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bool open (const String& name);
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/** Releases the currently-open DLL, or has no effect if none was open. */
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void close();
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/** Tries to find a named function in the currently-open DLL, and returns a pointer to it.
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If no library is open, or if the function isn't found, this will return a null pointer.
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*/
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void* getFunction (const String& functionName) noexcept;
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/** Returns the platform-specific native library handle.
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You'll need to cast this to whatever is appropriate for the OS that's in use.
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*/
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void* getNativeHandle() const noexcept { return handle; }
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private:
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void* handle;
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};
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} // beast
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#endif // BEAST_DYNAMICLIBRARY_H_INCLUDED
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