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<font color="#0000ff">// Copyright (c) 2004 David Muse</font>
<font color="#0000ff">// See the COPYING file for more information.</font>
<font color="#a020f0">#ifndef RUDIMENTS_DYNAMICLIB_H</font>
<font color="#a020f0">#define RUDIMENTS_DYNAMICLIB_H</font>
<font color="#a020f0">#include </font><font color="#ff00ff"><rudiments/private/dynamiclibincludes.h></font>
<font color="#0000ff">// The dynamiclib class provides methods for loading, unloading and calling</font>
<font color="#0000ff">// functions from dynamically linked libraries.</font>
<font color="#a020f0">#ifdef RUDIMENTS_NAMESPACE</font>
<font color="#2e8b57"><b>namespace</b></font> rudiments {
<font color="#a020f0">#endif</font>
<font color="#2e8b57"><b>class</b></font> dynamiclibprivate;
<font color="#2e8b57"><b>class</b></font> dynamiclib {
<font color="#a52a2a"><b>public</b></font>:
dynamiclib();
~dynamiclib();
<font color="#2e8b57"><b>bool</b></font> open(<font color="#2e8b57"><b>const</b></font> <font color="#2e8b57"><b>char</b></font> *library,
<font color="#2e8b57"><b>bool</b></font> loaddependencies,
<font color="#2e8b57"><b>bool</b></font> global);
<font color="#0000ff">// Opens library "library". If "loaddependencies"</font>
<font color="#0000ff">// is true, then all libraries required by this library</font>
<font color="#0000ff">// are also loaded, if it is false, they are loaded</font>
<font color="#0000ff">// later, as needed. If "global" is true, then the</font>
<font color="#0000ff">// symbols defined in the library are made available</font>
<font color="#0000ff">// to libraries which are loaded later.</font>
<font color="#0000ff">//</font>
<font color="#0000ff">// Returns true on success and false on failure.</font>
<font color="#2e8b57"><b>bool</b></font> close();
<font color="#0000ff">// Closes and unloads the previously opened library.</font>
<font color="#2e8b57"><b>void</b></font> *getSymbol(<font color="#2e8b57"><b>const</b></font> <font color="#2e8b57"><b>char</b></font> *symbol) <font color="#2e8b57"><b>const</b></font>;
<font color="#0000ff">// Returns a handle to "symbol" (exported function or</font>
<font color="#0000ff">// variable) in the currently open library or NULL if</font>
<font color="#0000ff">// an error occurs or if no library is currently open.</font>
<font color="#2e8b57"><b>char</b></font> *getError() <font color="#2e8b57"><b>const</b></font>;
<font color="#0000ff">// Returns a human-readable description of the previous</font>
<font color="#0000ff">// error that occurred, or NULL if no error has</font>
<font color="#0000ff">// occurred.</font>
<font color="#0000ff">//</font>
<font color="#0000ff">// This method allocates a buffer internally and</font>
<font color="#0000ff">// returns it. The calling program must deallocate</font>
<font color="#0000ff">// the buffer.</font>
<font color="#0000ff">// getError() is not reentrant and thus not thread safe. If</font>
<font color="#0000ff">// your application is multi-threaded and you use getError(),</font>
<font color="#0000ff">// you must use this method to supply a mutex and ensure thread</font>
<font color="#0000ff">// safety.</font>
<font color="#0000ff">//</font>
<font color="#0000ff">// If you don't supply a mutex, getError() will still work, but</font>
<font color="#0000ff">// will not be thread-safe.</font>
<font color="#2e8b57"><b>static</b></font> <font color="#2e8b57"><b>void</b></font> setErrorMutex(mutex *mtx);
<font color="#0000ff">// Allows you to supply a mutex to regulate</font>
<font color="#0000ff">// access to getError().</font>
<font color="#a020f0"> #include </font><font color="#ff00ff"><rudiments/private/dynamiclib.h></font>
};
<font color="#a020f0">#ifdef RUDIMENTS_NAMESPACE</font>
}
<font color="#a020f0">#endif</font>
<font color="#a020f0">#endif</font>
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