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      1 /*
      2 * Copyright (c) 2011-2015, Intel Corporation
      3 * All rights reserved.
      4 *
      5 * Redistribution and use in source and binary forms, with or without modification,
      6 * are permitted provided that the following conditions are met:
      7 *
      8 * 1. Redistributions of source code must retain the above copyright notice, this
      9 * list of conditions and the following disclaimer.
     10 *
     11 * 2. Redistributions in binary form must reproduce the above copyright notice,
     12 * this list of conditions and the following disclaimer in the documentation and/or
     13 * other materials provided with the distribution.
     14 *
     15 * 3. Neither the name of the copyright holder nor the names of its contributors
     16 * may be used to endorse or promote products derived from this software without
     17 * specific prior written permission.
     18 *
     19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
     20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
     23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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     27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29 */
     30 #include <fstream>
     31 #include <assert.h>
     32 #include "TESTSubsystem.h"
     33 #include "TESTSubsystemBinary.h"
     34 #include "TESTSubsystemString.h"
     35 #include "TESTMappingKeys.h"
     36 #include "SubsystemObjectFactory.h"
     37 #include <stdlib.h>
     38 #include <stdio.h>
     39 
     40 #define base CSubsystem
     41 
     42 // Directory for isAlive and NeedResync files
     43 const char *gacFwNamePropName = getenv("PFW_RESULT");
     44 
     45 // Implementation
     46 CTESTSubsystem::CTESTSubsystem(const std::string &strName, core::log::Logger &logger)
     47     : base(strName, logger)
     48 {
     49     // Provide mapping keys to upper layer
     50     addContextMappingKey("Directory");
     51     addContextMappingKey("Log");
     52 
     53     // Provide creators to upper layer
     54     addSubsystemObjectFactory(
     55         new TSubsystemObjectFactory<CTESTSubsystemBinary>("Binary", 1 << ETESTDirectory));
     56     addSubsystemObjectFactory(
     57         new TSubsystemObjectFactory<CTESTSubsystemString>("String", 1 << ETESTDirectory));
     58 }
     59 
     60 // Susbsystem sanity health
     61 bool CTESTSubsystem::isAlive() const
     62 {
     63     assert(gacFwNamePropName != nullptr);
     64     return read(std::string(gacFwNamePropName) + "/isAlive") == "true";
     65 }
     66 
     67 // Resynchronization after subsystem restart needed
     68 bool CTESTSubsystem::needResync(bool bClear)
     69 {
     70     assert(gacFwNamePropName != nullptr);
     71     std::string strNeedResyncFile = std::string(gacFwNamePropName) + "/needResync";
     72     bool bNeedResync;
     73 
     74     bNeedResync = read(strNeedResyncFile) == "true";
     75 
     76     if (!bNeedResync) {
     77 
     78         // subsystem does not need resync
     79         return false;
     80     } else {
     81         // subsystem needs resync
     82         // If indicated, clear need resync state
     83         if (bClear) {
     84 
     85             write(strNeedResyncFile, "false");
     86         }
     87 
     88         return true;
     89     }
     90 }
     91 
     92 // Read boolean from file
     93 std::string CTESTSubsystem::read(const std::string &strFileName)
     94 {
     95     std::ifstream file;
     96     std::string strContent;
     97 
     98     file.open(strFileName.c_str());
     99 
    100     file >> strContent;
    101 
    102     return strContent;
    103 }
    104 
    105 // Write boolean to file
    106 void CTESTSubsystem::write(const std::string &strFileName, const std::string &strContent)
    107 {
    108     std::ofstream file;
    109 
    110     file.open(strFileName.c_str());
    111 
    112     assert(file.is_open());
    113 
    114     file << strContent;
    115 }
    116