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* FileIterator is now a mostly abstract interface * FolderIterator is the currently only implementation (there could be MessageIterator for an even better separation, which would read the top level search folders from the BMessage with the selected poses, but it would mostly use the same code for traversing the subfolders anyways so I left that for the time being.) * The Grepper and FolderIterator now copy the current settings from the Model at instantiation. Since they run in a separate thread and the Model may actually be changed from the Window thread, I think this is just a cleaner and more safe solution. * Cleanup here and there. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26786 a95241bf-73f2-0310-859d-f6bbb57e9c96
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/*
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* Copyright (c) 1998-2007 Matthijs Hollemans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef GREPPER_H
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#define GREPPER_H
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#include <Messenger.h>
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class FileIterator;
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class Model;
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// Executes "grep" in a background thread.
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class Grepper {
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public:
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Grepper(const char* pattern, const Model* model,
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const BHandler* target,
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FileIterator* iterator);
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virtual ~Grepper();
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bool IsValid() const;
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void Start();
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void Cancel();
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private:
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// Spawns the real grepper thread.
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static int32 _SpawnThread(void* cookie);
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// The thread function that does the actual grepping.
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int32 _GrepperThread();
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// Remembers, and possibly escapes, the search pattern.
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void _SetPattern(const char* source);
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// Prepends all quotes, dollars and backslashes with at backslash
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// to prevent the shell from misinterpreting them.
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bool _EscapeSpecialChars(char* buffer,
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ssize_t bufferSize);
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private:
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// The (escaped) search pattern.
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char* fPattern;
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// The settings from the model.
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BMessenger fTarget;
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bool fEscapeText : 1;
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bool fCaseSensitive : 1;
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uint32 fEncoding;
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// The supplier of files to grep
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FileIterator* fIterator;
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// Our thread's ID.
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thread_id fThreadId;
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// Whether our thread must quit.
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volatile bool fMustQuit;
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};
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#endif // GREPPER_H
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