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/* |
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* Copyright (C) 2005-2008 by Pieter Palmers |
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* |
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* This file is part of FFADO |
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* FFADO = Free Firewire (pro-)audio drivers for linux |
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* |
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* FFADO is based upon FreeBoB. |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 2 of the License, or |
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* (at your option) version 3 of the License. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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#include "config.h" |
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#include "IsoHandlerManager.h" |
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#include "ieee1394service.h" |
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#include "IsoHandler.h" |
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#include "libstreaming/generic/StreamProcessor.h" |
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#include "libutil/Atomic.h" |
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#include "libutil/PosixThread.h" |
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#include "libutil/SystemTimeSource.h" |
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#include <assert.h> |
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IMPL_DEBUG_MODULE( IsoHandlerManager, IsoHandlerManager, DEBUG_LEVEL_NORMAL ); |
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IMPL_DEBUG_MODULE( IsoTask, IsoTask, DEBUG_LEVEL_NORMAL ); |
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using namespace Streaming; |
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|
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// --- ISO Thread --- // |
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|
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IsoTask::IsoTask(IsoHandlerManager& manager, enum IsoTask::eTaskType t) |
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: m_manager( manager ) |
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, m_type( t ) |
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{ |
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} |
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|
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bool |
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IsoTask::Init() |
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{ |
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request_update = 0; |
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|
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int i; |
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for (i=0; i < ISOHANDLERMANAGER_MAX_ISO_HANDLERS_PER_PORT; i++) { |
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m_IsoHandler_map_shadow[i] = NULL; |
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m_poll_fds_shadow[i].events = 0; |
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} |
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m_poll_nfds_shadow = 0; |
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return true; |
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} |
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|
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bool |
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IsoTask::requestShadowMapUpdate() |
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{ |
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debugOutput(DEBUG_LEVEL_VERBOSE, "enter\n"); |
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INC_ATOMIC(&request_update); |
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return true; |
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} |
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|
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// updates the internal stream map |
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// note that this should be executed with the guarantee that |
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// nobody will modify |
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void |
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IsoTask::updateShadowMapHelper() |
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{ |
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debugOutput( DEBUG_LEVEL_VERBOSE, "updating shadow vars...\n"); |
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unsigned int i, cnt, max; |
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max = m_manager.m_IsoHandlers.size(); |
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for (i = 0, cnt = 0; i < max; i++) { |
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IsoHandler *h = m_manager.m_IsoHandlers.at(i); |
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assert(h); |
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|
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// skip handlers of the wrong type |
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if (h->getType() == IsoHandler::eHT_Receive && m_type == eTT_Transmit) continue; |
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if (h->getType() == IsoHandler::eHT_Transmit && m_type == eTT_Receive) continue; |
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|
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if (h->isEnabled()) { |
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m_IsoHandler_map_shadow[cnt] = h; |
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m_poll_fds_shadow[cnt].fd = h->getFileDescriptor(); |
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m_poll_fds_shadow[cnt].revents = 0; |
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m_poll_fds_shadow[cnt].events = POLLIN; |
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cnt++; |
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debugOutput( DEBUG_LEVEL_VERBOSE, "%s handler %p added\n", h->getTypeString(), h); |
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} else { |
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debugOutput( DEBUG_LEVEL_VERBOSE, "%s handler %p skipped (disabled)\n", h->getTypeString(), h); |
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} |
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if(cnt > ISOHANDLERMANAGER_MAX_ISO_HANDLERS_PER_PORT) { |
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debugWarning("Too much ISO Handlers in thread...\n"); |
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break; |
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} |
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} |
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m_poll_nfds_shadow = cnt; |
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debugOutput( DEBUG_LEVEL_VERBOSE, " updated shadow vars...\n"); |
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} |
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bool |
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IsoTask::Execute() |
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{ |
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debugOutput(DEBUG_LEVEL_VERY_VERBOSE, "Execute\n"); |
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int err; |
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unsigned int i; |
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unsigned int m_poll_timeout = 10; |
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// if some other thread requested a shadow map update, do it |
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if(request_update) { |
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updateShadowMapHelper(); |
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DEC_ATOMIC(&request_update); // ack the update |
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} |
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// bypass if no handlers are registered |
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if (m_poll_nfds_shadow == 0) { |
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debugOutput(DEBUG_LEVEL_VERY_VERBOSE, "bypass iterate since no handlers to poll\n"); |
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usleep(m_poll_timeout * 1000); |
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return true; |
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} |
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|
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// setup the poll here |
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if (m_type==eTT_Transmit) { |
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// if we are a transmit thread, we should only poll on |
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// those handlers that have a client that is ready to send |
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// something. poll'ing the others will only cause busy-wait |
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// looping. |
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for (i = 0; i < m_poll_nfds_shadow; i++) { |
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short events = 0; |
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if (m_IsoHandler_map_shadow[i]->tryWaitForClient()) { |
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events = POLLIN | POLLPRI; |
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} |
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m_poll_fds_shadow[i].events = events; |
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} |
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} else { |
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// for receive handlers, we can do the same. we might not have to though |
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// FIXME: check whether this is necessary |
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for (i = 0; i < m_poll_nfds_shadow; i++) { |
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short events = 0; |
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// if (m_IsoHandler_map_shadow[i]->tryWaitForClient()) { |
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// events = POLLIN | POLLERR | POLLHUP; |
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// } |
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events = POLLIN | POLLPRI; |
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m_poll_fds_shadow[i].events = events; |
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} |
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} |
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// Use a shadow map of the fd's such that the poll call is not in a critical section |
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err = poll (m_poll_fds_shadow, m_poll_nfds_shadow, m_poll_timeout); |
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if (err < 0) { |
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if (errno == EINTR) { |
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return true; |
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} |
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debugFatal("poll error: %s\n", strerror (errno)); |
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return false; |
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} |
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for (i = 0; i < m_poll_nfds_shadow; i++) { |
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#ifdef DEBUG |
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if(m_poll_fds_shadow[i].revents) { |
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debugOutput(DEBUG_LEVEL_VERY_VERBOSE, |
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"received events: %08X for (%d/%d, %p, %s)\n", |
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m_poll_fds_shadow[i].revents, |
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i, m_poll_nfds_shadow, |
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m_IsoHandler_map_shadow[i], |
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m_IsoHandler_map_shadow[i]->getTypeString()); |
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} |
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#endif |
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// if we get here, it means two things: |
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// 1) the kernel can accept or provide packets (poll returned POLLIN) |
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// 2) the client can provide or accept packets (we enabled polling) |
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if(m_poll_fds_shadow[i].revents & (POLLIN)) { |
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m_IsoHandler_map_shadow[i]->iterate(); |
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} else { |
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// there might be some error condition |
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if (m_poll_fds_shadow[i].revents & POLLERR) { |
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debugWarning("error on fd for %d\n",i); |
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} |
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if (m_poll_fds_shadow[i].revents & POLLHUP) { |
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debugWarning("hangup on fd for %d\n",i); |
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} |
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} |
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// #ifdef DEBUG |
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// // check if the handler is still alive |
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// if(m_IsoHandler_map_shadow[i]->isDead()) { |
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// debugError("Iso handler (%p, %s) is dead!\n", |
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// m_IsoHandler_map_shadow[i], |
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// m_IsoHandler_map_shadow[i]->getTypeString()); |
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// return false; // shutdown the system |
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// } |
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// #endif |
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} |
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return true; |
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} |
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void IsoTask::setVerboseLevel(int i) { |
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setDebugLevel(i); |
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} |
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// -- the ISO handler manager -- // |
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IsoHandlerManager::IsoHandlerManager(Ieee1394Service& service) |
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: m_State(E_Created) |
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, m_service( service ) |
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, m_realtime(false), m_priority(0) |
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, m_ReceiveThread ( NULL ) |
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, m_TransmitThread ( NULL ) |
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, m_ReceiveTask ( NULL ) |
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, m_TransmitTask ( NULL ) |
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{} |
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|
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IsoHandlerManager::IsoHandlerManager(Ieee1394Service& service, bool run_rt, int rt_prio) |
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: m_State(E_Created) |
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, m_service( service ) |
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, m_realtime(run_rt), m_priority(rt_prio) |
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, m_ReceiveThread ( NULL ) |
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, m_TransmitThread ( NULL ) |
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, m_ReceiveTask ( NULL ) |
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, m_TransmitTask ( NULL ) |
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{} |
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IsoHandlerManager::~IsoHandlerManager() |
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{ |
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stopHandlers(); |
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pruneHandlers(); |
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if(m_IsoHandlers.size() > 0) { |
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debugError("Still some handlers in use\n"); |
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} |
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if (m_ReceiveThread) { |
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m_ReceiveThread->Stop(); |
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delete m_ReceiveThread; |
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} |
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if (m_ReceiveTask) { |
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delete m_ReceiveTask; |
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} |
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if (m_TransmitThread) { |
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m_TransmitThread->Stop(); |
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delete m_TransmitThread; |
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} |
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if (m_TransmitTask) { |
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delete m_TransmitTask; |
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} |
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} |
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bool |
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IsoHandlerManager::setThreadParameters(bool rt, int priority) { |
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debugOutput( DEBUG_LEVEL_VERBOSE, "(%p) switch to: (rt=%d, prio=%d)...\n", this, rt, priority); |
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if (priority > THREAD_MAX_RTPRIO) priority = THREAD_MAX_RTPRIO; // cap the priority |
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m_realtime = rt; |
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m_priority = priority; |
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bool result = true; |
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if (m_ReceiveThread) { |
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if (m_realtime) { |
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m_ReceiveThread->AcquireRealTime(m_priority); |
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} else { |
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m_ReceiveThread->DropRealTime(); |
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} |
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} |
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if (m_TransmitThread) { |
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if (m_realtime) { |
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m_TransmitThread->AcquireRealTime(m_priority); |
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} else { |
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m_TransmitThread->DropRealTime(); |
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} |
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} |
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return result; |
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} |
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bool IsoHandlerManager::init() |
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{ |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Initializing ISO manager %p...\n", this); |
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// check state |
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if(m_State != E_Created) { |
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debugError("Manager already initialized...\n"); |
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return false; |
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} |
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|
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// create a thread to iterate our receive handlers |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Create receive thread for %p...\n", this); |
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m_ReceiveTask = new IsoTask( *this, IsoTask::eTT_Receive ); |
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if(!m_ReceiveTask) { |
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debugFatal("No task\n"); |
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return false; |
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} |
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m_ReceiveThread = new Util::PosixThread(m_ReceiveTask, m_realtime, |
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m_priority + ISOHANDLERMANAGER_RECEIVE_PRIO_INCREASE, |
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PTHREAD_CANCEL_DEFERRED); |
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|
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if(!m_ReceiveThread) { |
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debugFatal("No thread\n"); |
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return false; |
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} |
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if (m_ReceiveThread->Start() != 0) { |
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debugFatal("Could not start receive thread\n"); |
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return false; |
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} |
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|
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// create a thread to iterate our transmit handlers |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Create transmit thread for %p...\n", this); |
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m_TransmitTask = new IsoTask( *this, IsoTask::eTT_Transmit ); |
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if(!m_TransmitTask) { |
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debugFatal("No task\n"); |
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return false; |
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} |
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m_TransmitThread = new Util::PosixThread(m_TransmitTask, m_realtime, |
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m_priority + ISOHANDLERMANAGER_TRANSMIT_PRIO_INCREASE, |
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PTHREAD_CANCEL_DEFERRED); |
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if(!m_TransmitThread) { |
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debugFatal("No thread\n"); |
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return false; |
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} |
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if (m_TransmitThread->Start() != 0) { |
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debugFatal("Could not start transmit thread\n"); |
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return false; |
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} |
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|
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m_State=E_Running; |
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return true; |
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} |
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|
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|
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bool |
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IsoHandlerManager::updateShadowMapFor(IsoHandler *h) |
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{ |
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// update the shadow map |
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if(h->getType() == IsoHandler::eHT_Receive) { |
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if(!m_ReceiveTask->requestShadowMapUpdate()) { |
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debugError("failed to update shadow map\n"); |
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return false; |
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} |
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} else { |
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if(!m_TransmitTask->requestShadowMapUpdate()) { |
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debugError("failed to update shadow map\n"); |
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return false; |
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} |
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} |
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return true; |
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} |
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|
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bool |
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IsoHandlerManager::disable(IsoHandler *h) { |
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bool result; |
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int i=0; |
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debugOutput(DEBUG_LEVEL_VERBOSE, "Disable on IsoHandler %p\n", h); |
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for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
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it != m_IsoHandlers.end(); |
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++it ) |
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{ |
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if ((*it) == h) { |
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result = h->disable(); |
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result &= updateShadowMapFor(h); |
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debugOutput(DEBUG_LEVEL_VERY_VERBOSE, " disabled\n"); |
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return result; |
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} |
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i++; |
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} |
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debugError("Handler not found\n"); |
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return false; |
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} |
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|
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bool |
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IsoHandlerManager::enable(IsoHandler *h) { |
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bool result; |
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int i=0; |
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debugOutput(DEBUG_LEVEL_VERBOSE, "Enable on IsoHandler %p\n", h); |
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for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
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it != m_IsoHandlers.end(); |
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++it ) |
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{ |
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if ((*it) == h) { |
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result = h->enable(); |
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result &= updateShadowMapFor(h); |
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debugOutput(DEBUG_LEVEL_VERY_VERBOSE, " enabled\n"); |
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return result; |
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} |
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i++; |
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} |
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debugError("Handler not found\n"); |
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return false; |
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} |
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|
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bool IsoHandlerManager::registerHandler(IsoHandler *handler) |
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{ |
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debugOutput( DEBUG_LEVEL_VERBOSE, "enter...\n"); |
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assert(handler); |
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handler->setVerboseLevel(getDebugLevel()); |
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m_IsoHandlers.push_back(handler); |
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return updateShadowMapFor(handler); |
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} |
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|
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bool IsoHandlerManager::unregisterHandler(IsoHandler *handler) |
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{ |
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debugOutput( DEBUG_LEVEL_VERBOSE, "enter...\n"); |
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assert(handler); |
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|
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for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
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it != m_IsoHandlers.end(); |
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++it ) |
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{ |
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if ( *it == handler ) { |
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m_IsoHandlers.erase(it); |
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return updateShadowMapFor(handler); |
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} |
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} |
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debugFatal("Could not find handler (%p)\n", handler); |
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return false; //not found |
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} |
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|
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/** |
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* Registers an StreamProcessor with the IsoHandlerManager. |
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* |
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* If nescessary, an IsoHandler is created to handle this stream. |
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* Once an StreamProcessor is registered to the handler, it will be included |
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* in the ISO streaming cycle (i.e. receive/transmit of it will occur). |
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* |
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* @param stream the stream to register |
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* @return true if registration succeeds |
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* |
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* \todo : currently there is a one-to-one mapping |
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* between streams and handlers, this is not ok for |
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* multichannel receive |
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*/ |
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439 |
bool IsoHandlerManager::registerStream(StreamProcessor *stream) |
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{ |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Registering stream %p\n",stream); |
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assert(stream); |
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|
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IsoHandler* h = NULL; |
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|
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// make sure the stream isn't already attached to a handler |
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for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
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it != m_IsoHandlers.end(); |
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++it ) |
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{ |
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451 |
if((*it)->isStreamRegistered(stream)) { |
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debugError( "stream already registered!\n"); |
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return false; |
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} |
---|
455 |
} |
---|
456 |
|
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457 |
// clean up all handlers that aren't used |
---|
458 |
pruneHandlers(); |
---|
459 |
|
---|
460 |
// allocate a handler for this stream |
---|
461 |
if (stream->getType()==StreamProcessor::ePT_Receive) { |
---|
462 |
// setup the optimal parameters for the raw1394 ISO buffering |
---|
463 |
unsigned int packets_per_period = stream->getPacketsPerPeriod(); |
---|
464 |
unsigned int max_packet_size = stream->getMaxPacketSize(); |
---|
465 |
unsigned int page_size = getpagesize() - 2; // for one reason or another this is necessary |
---|
466 |
|
---|
467 |
// Ensure we don't request a packet size bigger than the |
---|
468 |
// kernel-enforced maximum which is currently 1 page. |
---|
469 |
if (max_packet_size > page_size) { |
---|
470 |
debugError("max packet size (%u) > page size (%u)\n", max_packet_size, page_size); |
---|
471 |
return false; |
---|
472 |
} |
---|
473 |
|
---|
474 |
unsigned int irq_interval = packets_per_period / MINIMUM_INTERRUPTS_PER_PERIOD; |
---|
475 |
if(irq_interval <= 0) irq_interval=1; |
---|
476 |
|
---|
477 |
// the receive buffer size doesn't matter for the latency, |
---|
478 |
// but it has a minimal value in order for libraw to operate correctly (300) |
---|
479 |
int buffers=400; |
---|
480 |
|
---|
481 |
// create the actual handler |
---|
482 |
h = new IsoHandler(*this, IsoHandler::eHT_Receive, |
---|
483 |
buffers, max_packet_size, irq_interval); |
---|
484 |
|
---|
485 |
debugOutput( DEBUG_LEVEL_VERBOSE, " creating IsoRecvHandler\n"); |
---|
486 |
|
---|
487 |
if(!h) { |
---|
488 |
debugFatal("Could not create IsoRecvHandler\n"); |
---|
489 |
return false; |
---|
490 |
} |
---|
491 |
|
---|
492 |
} else if (stream->getType()==StreamProcessor::ePT_Transmit) { |
---|
493 |
// setup the optimal parameters for the raw1394 ISO buffering |
---|
494 |
unsigned int packets_per_period = stream->getPacketsPerPeriod(); |
---|
495 |
unsigned int max_packet_size = stream->getMaxPacketSize(); |
---|
496 |
// unsigned int page_size = getpagesize(); |
---|
497 |
|
---|
498 |
// Ensure we don't request a packet size bigger than the |
---|
499 |
// kernel-enforced maximum which is currently 1 page. |
---|
500 |
// if (max_packet_size > page_size) { |
---|
501 |
// debugError("max packet size (%u) > page size (%u)\n", max_packet_size, page_size); |
---|
502 |
// return false; |
---|
503 |
// } |
---|
504 |
if (max_packet_size > MAX_XMIT_PACKET_SIZE) { |
---|
505 |
debugError("max packet size (%u) > MAX_XMIT_PACKET_SIZE (%u)\n", |
---|
506 |
max_packet_size, MAX_XMIT_PACKET_SIZE); |
---|
507 |
return false; |
---|
508 |
} |
---|
509 |
|
---|
510 |
// the SP specifies how many packets to ISO-buffer |
---|
511 |
int buffers = stream->getNbPacketsIsoXmitBuffer(); |
---|
512 |
if (buffers > MAX_XMIT_NB_BUFFERS) { |
---|
513 |
debugOutput(DEBUG_LEVEL_VERBOSE, |
---|
514 |
"nb buffers (%u) > MAX_XMIT_NB_BUFFERS (%u)\n", |
---|
515 |
buffers, MAX_XMIT_NB_BUFFERS); |
---|
516 |
buffers = MAX_XMIT_NB_BUFFERS; |
---|
517 |
} |
---|
518 |
unsigned int irq_interval = buffers / MINIMUM_INTERRUPTS_PER_PERIOD; |
---|
519 |
if(irq_interval <= 0) irq_interval=1; |
---|
520 |
|
---|
521 |
debugOutput( DEBUG_LEVEL_VERBOSE, " creating IsoXmitHandler\n"); |
---|
522 |
|
---|
523 |
// create the actual handler |
---|
524 |
h = new IsoHandler(*this, IsoHandler::eHT_Transmit, |
---|
525 |
buffers, max_packet_size, irq_interval); |
---|
526 |
|
---|
527 |
if(!h) { |
---|
528 |
debugFatal("Could not create IsoXmitHandler\n"); |
---|
529 |
return false; |
---|
530 |
} |
---|
531 |
|
---|
532 |
} else { |
---|
533 |
debugFatal("Bad stream type\n"); |
---|
534 |
return false; |
---|
535 |
} |
---|
536 |
|
---|
537 |
h->setVerboseLevel(getDebugLevel()); |
---|
538 |
|
---|
539 |
// init the handler |
---|
540 |
if(!h->init()) { |
---|
541 |
debugFatal("Could not initialize receive handler\n"); |
---|
542 |
return false; |
---|
543 |
} |
---|
544 |
|
---|
545 |
// set the handler's thread parameters |
---|
546 |
// receive handlers have lower priority than the client thread |
---|
547 |
// since they have ISO side buffering |
---|
548 |
// xmit handlers have higher priority since we want client side |
---|
549 |
// frames to be put into the ISO buffers ASAP |
---|
550 |
int thread_prio; |
---|
551 |
if (stream->getType()==StreamProcessor::ePT_Receive) { |
---|
552 |
thread_prio = m_priority - 1; |
---|
553 |
if (thread_prio < THREAD_MIN_RTPRIO) thread_prio = THREAD_MIN_RTPRIO; |
---|
554 |
} else { |
---|
555 |
thread_prio = m_priority + 1; |
---|
556 |
if (thread_prio > THREAD_MAX_RTPRIO) thread_prio = THREAD_MAX_RTPRIO; |
---|
557 |
} |
---|
558 |
|
---|
559 |
// register the stream with the handler |
---|
560 |
if(!h->registerStream(stream)) { |
---|
561 |
debugFatal("Could not register receive stream with handler\n"); |
---|
562 |
return false; |
---|
563 |
} |
---|
564 |
|
---|
565 |
// register the handler with the manager |
---|
566 |
if(!registerHandler(h)) { |
---|
567 |
debugFatal("Could not register receive handler with manager\n"); |
---|
568 |
return false; |
---|
569 |
} |
---|
570 |
debugOutput( DEBUG_LEVEL_VERBOSE, " registered stream (%p) with handler (%p)\n", stream, h); |
---|
571 |
|
---|
572 |
m_StreamProcessors.push_back(stream); |
---|
573 |
debugOutput( DEBUG_LEVEL_VERBOSE, " %d streams, %d handlers registered\n", |
---|
574 |
m_StreamProcessors.size(), m_IsoHandlers.size()); |
---|
575 |
return true; |
---|
576 |
} |
---|
577 |
|
---|
578 |
bool IsoHandlerManager::unregisterStream(StreamProcessor *stream) |
---|
579 |
{ |
---|
580 |
debugOutput( DEBUG_LEVEL_VERBOSE, "Unregistering stream %p\n",stream); |
---|
581 |
assert(stream); |
---|
582 |
|
---|
583 |
// make sure the stream isn't attached to a handler anymore |
---|
584 |
for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
---|
585 |
it != m_IsoHandlers.end(); |
---|
586 |
++it ) |
---|
587 |
{ |
---|
588 |
if((*it)->isStreamRegistered(stream)) { |
---|
589 |
if(!(*it)->unregisterStream(stream)) { |
---|
590 |
debugOutput( DEBUG_LEVEL_VERBOSE, " could not unregister stream (%p) from handler (%p)...\n",stream,*it); |
---|
591 |
return false; |
---|
592 |
} |
---|
593 |
debugOutput( DEBUG_LEVEL_VERBOSE, " unregistered stream (%p) from handler (%p)...\n",stream,*it); |
---|
594 |
} |
---|
595 |
} |
---|
596 |
|
---|
597 |
// clean up all handlers that aren't used |
---|
598 |
pruneHandlers(); |
---|
599 |
|
---|
600 |
// remove the stream from the registered streams list |
---|
601 |
for ( StreamProcessorVectorIterator it = m_StreamProcessors.begin(); |
---|
602 |
it != m_StreamProcessors.end(); |
---|
603 |
++it ) |
---|
604 |
{ |
---|
605 |
if ( *it == stream ) { |
---|
606 |
m_StreamProcessors.erase(it); |
---|
607 |
debugOutput( DEBUG_LEVEL_VERBOSE, " deleted stream (%p) from list...\n", *it); |
---|
608 |
return true; |
---|
609 |
} |
---|
610 |
} |
---|
611 |
return false; //not found |
---|
612 |
} |
---|
613 |
|
---|
614 |
/** |
---|
615 |
* @brief unregister a handler from the manager |
---|
616 |
* @note called without the lock held. |
---|
617 |
*/ |
---|
618 |
void IsoHandlerManager::pruneHandlers() { |
---|
619 |
debugOutput( DEBUG_LEVEL_VERBOSE, "enter...\n"); |
---|
620 |
IsoHandlerVector toUnregister; |
---|
621 |
|
---|
622 |
// find all handlers that are not in use |
---|
623 |
for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
---|
624 |
it != m_IsoHandlers.end(); |
---|
625 |
++it ) |
---|
626 |
{ |
---|
627 |
if(!((*it)->inUse())) { |
---|
628 |
debugOutput( DEBUG_LEVEL_VERBOSE, " handler (%p) not in use\n",*it); |
---|
629 |
toUnregister.push_back(*it); |
---|
630 |
} |
---|
631 |
} |
---|
632 |
// delete them |
---|
633 |
for ( IsoHandlerVectorIterator it = toUnregister.begin(); |
---|
634 |
it != toUnregister.end(); |
---|
635 |
++it ) |
---|
636 |
{ |
---|
637 |
unregisterHandler(*it); |
---|
638 |
|
---|
639 |
debugOutput( DEBUG_LEVEL_VERBOSE, " deleting handler (%p)\n",*it); |
---|
640 |
|
---|
641 |
// Now the handler's been unregistered it won't be reused |
---|
642 |
// again. Therefore it really needs to be formally deleted |
---|
643 |
// to free up the raw1394 handle. Otherwise things fall |
---|
644 |
// apart after several xrun recoveries as the system runs |
---|
645 |
// out of resources to support all the disused but still |
---|
646 |
// allocated raw1394 handles. At least this is the current |
---|
647 |
// theory as to why we end up with "memory allocation" |
---|
648 |
// failures after several Xrun recoveries. |
---|
649 |
delete *it; |
---|
650 |
} |
---|
651 |
} |
---|
652 |
|
---|
653 |
bool |
---|
654 |
IsoHandlerManager::stopHandlerForStream(Streaming::StreamProcessor *stream) { |
---|
655 |
// check state |
---|
656 |
if(m_State != E_Running) { |
---|
657 |
debugError("Incorrect state, expected E_Running, got %s\n", eHSToString(m_State)); |
---|
658 |
return false; |
---|
659 |
} |
---|
660 |
for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
---|
661 |
it != m_IsoHandlers.end(); |
---|
662 |
++it ) |
---|
663 |
{ |
---|
664 |
if((*it)->isStreamRegistered(stream)) { |
---|
665 |
debugOutput( DEBUG_LEVEL_VERBOSE, " stopping handler %p for stream %p\n", *it, stream); |
---|
666 |
if(!(*it)->disable()) { |
---|
667 |
debugOutput( DEBUG_LEVEL_VERBOSE, " could not disable handler (%p)\n",*it); |
---|
668 |
return false; |
---|
669 |
} |
---|
670 |
if(!updateShadowMapFor(*it)) { |
---|
671 |
debugOutput( DEBUG_LEVEL_VERBOSE, " could not update shadow map for handler (%p)\n",*it); |
---|
672 |
return false; |
---|
673 |
} |
---|
674 |
return true; |
---|
675 |
} |
---|
676 |
} |
---|
677 |
debugError("Stream %p has no attached handler\n", stream); |
---|
678 |
return false; |
---|
679 |
} |
---|
680 |
|
---|
681 |
int |
---|
682 |
IsoHandlerManager::getPacketLatencyForStream(Streaming::StreamProcessor *stream) { |
---|
683 |
for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
---|
684 |
it != m_IsoHandlers.end(); |
---|
685 |
++it ) |
---|
686 |
{ |
---|
687 |
if((*it)->isStreamRegistered(stream)) { |
---|
688 |
return (*it)->getPacketLatency(); |
---|
689 |
} |
---|
690 |
} |
---|
691 |
debugError("Stream %p has no attached handler\n", stream); |
---|
692 |
return 0; |
---|
693 |
} |
---|
694 |
|
---|
695 |
void |
---|
696 |
IsoHandlerManager::flushHandlerForStream(Streaming::StreamProcessor *stream) { |
---|
697 |
for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
---|
698 |
it != m_IsoHandlers.end(); |
---|
699 |
++it ) |
---|
700 |
{ |
---|
701 |
if((*it)->isStreamRegistered(stream)) { |
---|
702 |
return (*it)->flush(); |
---|
703 |
} |
---|
704 |
} |
---|
705 |
debugError("Stream %p has no attached handler\n", stream); |
---|
706 |
return; |
---|
707 |
} |
---|
708 |
|
---|
709 |
bool |
---|
710 |
IsoHandlerManager::startHandlerForStream(Streaming::StreamProcessor *stream) { |
---|
711 |
return startHandlerForStream(stream, -1); |
---|
712 |
} |
---|
713 |
|
---|
714 |
bool |
---|
715 |
IsoHandlerManager::startHandlerForStream(Streaming::StreamProcessor *stream, int cycle) { |
---|
716 |
// check state |
---|
717 |
if(m_State != E_Running) { |
---|
718 |
debugError("Incorrect state, expected E_Running, got %s\n", eHSToString(m_State)); |
---|
719 |
return false; |
---|
720 |
} |
---|
721 |
for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
---|
722 |
it != m_IsoHandlers.end(); |
---|
723 |
++it ) |
---|
724 |
{ |
---|
725 |
if((*it)->isStreamRegistered(stream)) { |
---|
726 |
debugOutput( DEBUG_LEVEL_VERBOSE, " starting handler %p for stream %p\n", *it, stream); |
---|
727 |
if(!(*it)->enable(cycle)) { |
---|
728 |
debugOutput( DEBUG_LEVEL_VERBOSE, " could not enable handler (%p)\n",*it); |
---|
729 |
return false; |
---|
730 |
} |
---|
731 |
if(!updateShadowMapFor(*it)) { |
---|
732 |
debugOutput( DEBUG_LEVEL_VERBOSE, " could not update shadow map for handler (%p)\n",*it); |
---|
733 |
return false; |
---|
734 |
} |
---|
735 |
return true; |
---|
736 |
} |
---|
737 |
} |
---|
738 |
debugError("Stream %p has no attached handler\n", stream); |
---|
739 |
return false; |
---|
740 |
} |
---|
741 |
|
---|
742 |
bool IsoHandlerManager::stopHandlers() { |
---|
743 |
debugOutput( DEBUG_LEVEL_VERBOSE, "enter...\n"); |
---|
744 |
|
---|
745 |
// check state |
---|
746 |
if(m_State != E_Running) { |
---|
747 |
debugError("Incorrect state, expected E_Running, got %s\n", eHSToString(m_State)); |
---|
748 |
return false; |
---|
749 |
} |
---|
750 |
|
---|
751 |
bool retval=true; |
---|
752 |
|
---|
753 |
for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
---|
754 |
it != m_IsoHandlers.end(); |
---|
755 |
++it ) |
---|
756 |
{ |
---|
757 |
debugOutput( DEBUG_LEVEL_VERBOSE, "Stopping handler (%p)\n",*it); |
---|
758 |
if(!(*it)->disable()){ |
---|
759 |
debugOutput( DEBUG_LEVEL_VERBOSE, " could not stop handler (%p)\n",*it); |
---|
760 |
retval=false; |
---|
761 |
} |
---|
762 |
if(!updateShadowMapFor(*it)) { |
---|
763 |
debugOutput( DEBUG_LEVEL_VERBOSE, " could not update shadow map for handler (%p)\n",*it); |
---|
764 |
retval=false; |
---|
765 |
} |
---|
766 |
} |
---|
767 |
|
---|
768 |
if (retval) { |
---|
769 |
m_State=E_Prepared; |
---|
770 |
} else { |
---|
771 |
m_State=E_Error; |
---|
772 |
} |
---|
773 |
return retval; |
---|
774 |
} |
---|
775 |
|
---|
776 |
bool IsoHandlerManager::reset() { |
---|
777 |
debugOutput( DEBUG_LEVEL_VERBOSE, "enter...\n"); |
---|
778 |
// check state |
---|
779 |
if(m_State == E_Error) { |
---|
780 |
debugFatal("Resetting from error condition not yet supported...\n"); |
---|
781 |
return false; |
---|
782 |
} |
---|
783 |
// if not in an error condition, reset means stop the handlers |
---|
784 |
return stopHandlers(); |
---|
785 |
} |
---|
786 |
|
---|
787 |
void IsoHandlerManager::setVerboseLevel(int i) { |
---|
788 |
setDebugLevel(i); |
---|
789 |
// propagate the debug level |
---|
790 |
for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
---|
791 |
it != m_IsoHandlers.end(); |
---|
792 |
++it ) |
---|
793 |
{ |
---|
794 |
(*it)->setVerboseLevel(i); |
---|
795 |
} |
---|
796 |
if(m_ReceiveThread) m_ReceiveThread->setVerboseLevel(i); |
---|
797 |
if(m_ReceiveTask) m_ReceiveTask->setVerboseLevel(i); |
---|
798 |
if(m_TransmitThread) m_TransmitThread->setVerboseLevel(i); |
---|
799 |
if(m_TransmitTask) m_TransmitTask->setVerboseLevel(i); |
---|
800 |
} |
---|
801 |
|
---|
802 |
void IsoHandlerManager::dumpInfo() { |
---|
803 |
int i=0; |
---|
804 |
debugOutputShort( DEBUG_LEVEL_NORMAL, "Dumping IsoHandlerManager Stream handler information...\n"); |
---|
805 |
debugOutputShort( DEBUG_LEVEL_NORMAL, " State: %d\n",(int)m_State); |
---|
806 |
|
---|
807 |
for ( IsoHandlerVectorIterator it = m_IsoHandlers.begin(); |
---|
808 |
it != m_IsoHandlers.end(); |
---|
809 |
++it ) |
---|
810 |
{ |
---|
811 |
debugOutputShort( DEBUG_LEVEL_NORMAL, " IsoHandler %d (%p)\n",i++,*it); |
---|
812 |
(*it)->dumpInfo(); |
---|
813 |
} |
---|
814 |
} |
---|
815 |
|
---|
816 |
const char * |
---|
817 |
IsoHandlerManager::eHSToString(enum eHandlerStates s) { |
---|
818 |
switch (s) { |
---|
819 |
default: return "Invalid"; |
---|
820 |
case E_Created: return "Created"; |
---|
821 |
case E_Prepared: return "Prepared"; |
---|
822 |
case E_Running: return "Running"; |
---|
823 |
case E_Error: return "Error"; |
---|
824 |
} |
---|
825 |
} |
---|