| 1 | #! /usr/bin/env python |
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| 2 | |
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| 3 | ''' |
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| 4 | /**************************************************************************** |
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| 5 | |
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| 6 | Copyright 2007 Virginia Polytechnic Institute and State University |
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| 7 | |
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| 8 | This file is part of the OSSIE USRP_Commander_GUI. |
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| 9 | |
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| 10 | OSSIE USRP_Commander_GUI is free software; you can redistribute it and/or modify |
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| 11 | it under the terms of the GNU General Public License as published by |
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| 12 | the Free Software Foundation; either version 2 of the License, or |
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| 13 | (at your option) any later version. |
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| 14 | |
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| 15 | OSSIE USRP_Commander_GUI is distributed in the hope that it will be useful, |
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| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 18 | GNU General Public License for more details. |
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| 19 | |
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| 20 | You should have received a copy of the GNU General Public License |
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| 21 | along with OSSIE USRP_Commander_GUI; if not, write to the Free Software |
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| 22 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 23 | |
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| 24 | ****************************************************************************/ |
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| 25 | |
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| 26 | ''' |
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| 27 | |
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| 28 | #!/usr/bin/env python |
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| 29 | import threading |
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| 30 | |
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| 31 | class WorkClass: |
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| 32 | """This class provides a place for the main processing of the |
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| 33 | component to reside.""" |
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| 34 | |
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| 35 | def __init__(self, rc2007_gui_ref): |
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| 36 | '''Initialization. Sets a reference to parent. |
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| 37 | Initializes the buffer. Starts the Process data |
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| 38 | thread, which waits for data to be added to the buffer''' |
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| 39 | |
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| 40 | self.rc2007_gui_ref = rc2007_gui_ref |
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| 41 | |
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| 42 | self.voice_data_queue = [] |
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| 43 | self.voice_data_queue_lock = threading.Lock() |
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| 44 | self.voice_data_signal = threading.Event() |
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| 45 | |
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| 46 | self.is_running = True |
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| 47 | |
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| 48 | self.process_thread = threading.Thread(target=self.Process) |
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| 49 | self.process_thread.start() |
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| 50 | |
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| 51 | def __del__(self): |
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| 52 | '''Destructor''' |
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| 53 | pass |
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| 54 | |
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| 55 | def AddVoiceData(self, data): |
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| 56 | '''Generally called by parent. Adds data to a buffer. |
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| 57 | The Process() method will wait for this buffer to be set. |
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| 58 | ''' |
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| 59 | self.voice_data_queue_lock.acquire() |
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| 60 | self.voice_data_queue.insert(0, data) |
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| 61 | self.voice_data_queue_lock.release() |
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| 62 | self.voice_data_signal.set() |
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| 63 | |
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| 64 | def SendTextData(self,data) |
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| 65 | # TODO: pack/depack |
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| 66 | # add meta data |
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| 67 | self.rc2007_gui_ref_outPort0_servant.send_data(data) |
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| 68 | |
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| 69 | def Release(self): |
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| 70 | self.is_running = False |
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| 71 | self.data_signal.set() |
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| 72 | |
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| 73 | def Process(self): |
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| 74 | while self.is_running: |
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| 75 | self.data_signal.wait() # wait for data to be aded to the |
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| 76 | # buffer in self.AddVoiceData() |
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| 77 | while len(self.data_queue) > 0: |
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| 78 | # get the data from the buffer: |
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| 79 | self.data_queue_lock.acquire() |
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| 80 | new_data = self.data_queue.pop() |
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| 81 | self.data_queue_lock.release() |
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| 82 | |
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| 83 | # forwarding voice data: |
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| 84 | if self.rc2007_gui_ref.talk_flag: |
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| 85 | if self.rc2007_gui_ref.outPort0_active: |
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| 86 | # TODO: send voice metadata |
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| 87 | self.rc2007_gui_ref.outPort0_servant.send_data(data) |
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| 88 | |
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| 89 | self.data_signal.clear() # done reading the buffer |
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| 90 | |
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| 91 | |
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