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      1 /** @addtogroup MCD_MCDIMPL_DAEMON_DEV
      2  * @{
      3  * @file
      4  *
      5  * <!-- Copyright Giesecke & Devrient GmbH 2009 - 2012 -->
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote
     16  *    products derived from this software without specific prior
     17  *    written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     20  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
     23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
     25  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include "TrustletSession.h"
     33 #include <cstdlib>
     34 
     35 #include "log.h"
     36 
     37 using namespace std;
     38 
     39 //------------------------------------------------------------------------------
     40 TrustletSession::TrustletSession(Connection *deviceConnection, uint32_t sessionId)
     41 {
     42     this->deviceConnection = deviceConnection;
     43     this->notificationConnection = NULL;
     44     this->sessionId = sessionId;
     45     sessionMagic = rand();
     46 }
     47 
     48 
     49 //------------------------------------------------------------------------------
     50 TrustletSession::~TrustletSession(void)
     51 {
     52     map<uint32_t, CWsm_ptr>::iterator it;
     53     delete notificationConnection;
     54 
     55     if (!buffers.empty()) {
     56         LOG_W("%s: Mapped buffers still available %u", __func__, buffers.size());
     57     }
     58     for ( it = buffers.begin() ; it != buffers.end(); it++ )
     59         delete (*it).second;
     60 
     61     buffers.clear();
     62 }
     63 
     64 //------------------------------------------------------------------------------
     65 void TrustletSession::queueNotification(notification_t *notification)
     66 {
     67     notifications.push(*notification);
     68 }
     69 
     70 //------------------------------------------------------------------------------
     71 void TrustletSession::processQueuedNotifications(void)
     72 {
     73     // Nothing to do here!
     74     if (notificationConnection == NULL)
     75         return;
     76 
     77     while (!notifications.empty()) {
     78         // Forward session ID and additional payload of
     79         // notification to the just established connection
     80         notificationConnection->writeData((void *)&notifications.front(),
     81                                           sizeof(notification_t));
     82         notifications.pop();
     83     }
     84 }
     85 
     86 //------------------------------------------------------------------------------
     87 bool TrustletSession::addBulkBuff(CWsm_ptr pWsm)
     88 {
     89     if (!pWsm)
     90         return false;
     91     if (buffers.find(pWsm->handle) != buffers.end()) {
     92         delete pWsm;
     93         return false;
     94     }
     95     buffers[pWsm->handle] = pWsm;
     96     return true;
     97 }
     98 
     99 //------------------------------------------------------------------------------
    100 bool TrustletSession::removeBulkBuff(uint32_t handle)
    101 {
    102     if (buffers.find(handle) == buffers.end()) {
    103         return false;
    104     }
    105     CWsm_ptr pWsm = buffers[handle];
    106     delete pWsm;
    107     buffers.erase(handle);
    108     return true;
    109 }
    110 
    111 
    112 CWsm_ptr TrustletSession::popBulkBuff()
    113 {
    114     if (buffers.empty()) {
    115         return NULL;
    116     }
    117 
    118     CWsm_ptr pWsm = buffers.begin()->second;
    119     // Remove it from the map
    120     buffers.erase(pWsm->handle);
    121     return pWsm;
    122 }
    123 
    124 /** @} */
    125