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/**
* Copyright 2013-2023 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package com.jogamp.common.os;
/** Low level secure dynamic linker access. */
public interface DynamicLinker {
public static final boolean DEBUG = NativeLibrary.DEBUG;
public static final boolean DEBUG_LOOKUP = NativeLibrary.DEBUG_LOOKUP;
/**
* @throws SecurityException if user is not granted global access
*/
public void claimAllLinkPermission() throws SecurityException;
/**
* @throws SecurityException if user is not granted global access
*/
public void releaseAllLinkPermission() throws SecurityException;
/**
* If a {@link SecurityManager} is installed, user needs link permissions
* for the named library.
* <p>
* Opens the named library, allowing system wide access for other <i>users</i>.
* </p>
*
* @param pathname the full pathname for the library to open
* @param debug set to true to enable debugging
* @return the library handle, maybe 0 if not found.
* @throws SecurityException if user is not granted access for the named library.
*/
public long openLibraryGlobal(String pathname, boolean debug) throws SecurityException;
/**
* If a {@link SecurityManager} is installed, user needs link permissions
* for the named library.
* <p>
* Opens the named library, restricting access to this process.
* </p>
*
* @param pathname the full pathname for the library to open
* @param debug set to true to enable debugging
* @return the library handle, maybe 0 if not found.
* @throws SecurityException if user is not granted access for the named library.
*/
public long openLibraryLocal(String pathname, boolean debug) throws SecurityException;
/**
* Security checks are implicit by previous call of
* {@link #openLibraryLocal(String, boolean)} or {@link #openLibraryGlobal(String, boolean)}
* retrieving the <code>librarHandle</code>.
*
* @param libraryHandle a library handle previously retrieved via {@link #openLibraryLocal(String, boolean)} or {@link #openLibraryGlobal(String, boolean)}.
* @param symbolName optional symbol name for an OS which requires the symbol's address to retrieve the path of the containing library
* @return the library pathname if found and supported by OS or {@code null}.
* @throws IllegalArgumentException in case case <code>libraryHandle</code> is unknown.
* @throws SecurityException if user is not granted access for the given library handle
*/
public String lookupLibraryPathname(long libraryHandle, String symbolName) throws SecurityException;
/**
* If a {@link SecurityManager} is installed, user needs link permissions
* for <b>all</b> libraries, i.e. for <code>new RuntimePermission("loadLibrary.*");</code>!
*
* @param symbolName global symbol name to lookup up system wide.
* @return the library handle, maybe 0 if not found.
* @throws SecurityException if user is not granted access for all libraries.
*/
public long lookupSymbolGlobal(String symbolName) throws SecurityException;
/**
* Security checks are implicit by previous call of
* {@link #openLibraryLocal(String, boolean)} or {@link #openLibraryGlobal(String, boolean)}
* retrieving the <code>librarHandle</code>.
*
* @param libraryHandle a library handle previously retrieved via {@link #openLibraryLocal(String, boolean)} or {@link #openLibraryGlobal(String, boolean)}.
* @param symbolName global symbol name to lookup up system wide.
* @return the library handle, maybe 0 if not found.
* @throws IllegalArgumentException in case case <code>libraryHandle</code> is unknown.
* @throws SecurityException if user is not granted access for the given library handle
*/
public long lookupSymbol(long libraryHandle, String symbolName) throws SecurityException, IllegalArgumentException;
/**
* Security checks are implicit by previous call of
* {@link #openLibraryLocal(String, boolean)} or {@link #openLibraryGlobal(String, boolean)}
* retrieving the <code>librarHandle</code>.
*
* @param libraryHandle a library handle previously retrieved via {@link #openLibraryLocal(String, boolean)} or {@link #openLibraryGlobal(String, boolean)}.
* @param debug set to true to enable debugging
* @throws IllegalArgumentException in case case <code>libraryHandle</code> is unknown.
* @throws SecurityException if user is not granted access for the given library handle
*/
public void closeLibrary(long libraryHandle, boolean debug) throws SecurityException, IllegalArgumentException;
/**
* Returns a string containing the last error.
* Maybe called for debuging purposed if any method fails.
* @return error string, maybe null. A null or non-null value has no semantics.
*/
public String getLastError();
}
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