| File: | daq/slc/readout/src/RunInfoBuffer.cc |
| Warning: | line 28, column 26 The parameter must not be null |
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| 1 | /************************************************************************** |
| 2 | * basf2 (Belle II Analysis Software Framework) * |
| 3 | * Author: The Belle II Collaboration * |
| 4 | * * |
| 5 | * See git log for contributors and copyright holders. * |
| 6 | * This file is licensed under LGPL-3.0, see LICENSE.md. * |
| 7 | **************************************************************************/ |
| 8 | #include "daq/slc/readout/RunInfoBuffer.h" |
| 9 | |
| 10 | #include <daq/slc/system/LogFile.h> |
| 11 | #include <daq/slc/system/LockGuard.h> |
| 12 | |
| 13 | #include <cstring> |
| 14 | #include <cstdlib> |
| 15 | |
| 16 | using namespace Belle2; |
| 17 | |
| 18 | size_t RunInfoBuffer::size() |
| 19 | { |
| 20 | return m_mutex.size() + m_cond.size() + |
| 21 | sizeof(ronode_info); |
| 22 | } |
| 23 | |
| 24 | bool RunInfoBuffer::open(const std::string& nodename, |
| 25 | int nodeid, bool recreate) |
| 26 | { |
| 27 | m_nodename = nodename; |
| 28 | std::string username = getenv("USER"); |
The parameter must not be null | |
| 29 | m_path = "/run_info_" + username + "_" + nodename; |
| 30 | if (!m_memory.open(m_path, size())) { |
| 31 | perror("shm_open"); |
| 32 | LogFile::fatal("Failed to open %s", m_path.c_str()); |
| 33 | return false; |
| 34 | } |
| 35 | char* buf = (char*)m_memory.map(0, size()); |
| 36 | if (buf == NULL__null) { |
| 37 | return false; |
| 38 | } |
| 39 | m_mutex = MMutex(buf); |
| 40 | buf += m_mutex.size(); |
| 41 | m_cond = MCond(buf); |
| 42 | buf += m_cond.size(); |
| 43 | m_info = (ronode_info*)buf; |
| 44 | if (recreate) init(); |
| 45 | if (nodeid > 0) setNodeId(nodeid); |
| 46 | return true; |
| 47 | } |
| 48 | |
| 49 | bool RunInfoBuffer::init() |
| 50 | { |
| 51 | if (m_info == NULL__null) return false; |
| 52 | m_mutex.init(); |
| 53 | m_cond.init(); |
| 54 | memset(m_info, 0, sizeof(ronode_info)); |
| 55 | LogFile::debug("Initialized %s", m_path.c_str()); |
| 56 | return true; |
| 57 | } |
| 58 | |
| 59 | void RunInfoBuffer::clear() |
| 60 | { |
| 61 | if (m_info == NULL__null) return; |
| 62 | MLockGuard lockGuard(m_mutex); |
| 63 | memset(m_info, 0, sizeof(ronode_info)); |
| 64 | } |
| 65 | |
| 66 | bool RunInfoBuffer::close() |
| 67 | { |
| 68 | m_memory.close(); |
| 69 | return true; |
| 70 | } |
| 71 | |
| 72 | bool RunInfoBuffer::unlink() |
| 73 | { |
| 74 | m_memory.unlink(); |
| 75 | m_memory.close(); |
| 76 | return true; |
| 77 | } |
| 78 | |
| 79 | bool RunInfoBuffer::lock() |
| 80 | { |
| 81 | if (m_info == NULL__null) return false; |
| 82 | return m_mutex.lock(); |
| 83 | } |
| 84 | |
| 85 | bool RunInfoBuffer::unlock() |
| 86 | { |
| 87 | if (m_info == NULL__null) return false; |
| 88 | return m_mutex.unlock(); |
| 89 | } |
| 90 | |
| 91 | bool RunInfoBuffer::wait() |
| 92 | { |
| 93 | if (m_info == NULL__null) return false; |
| 94 | return m_cond.wait(m_mutex); |
| 95 | } |
| 96 | |
| 97 | bool RunInfoBuffer::wait(int time) |
| 98 | { |
| 99 | if (m_info == NULL__null) return false; |
| 100 | return m_cond.wait(m_mutex, time, 0); |
| 101 | } |
| 102 | |
| 103 | bool RunInfoBuffer::notify() |
| 104 | { |
| 105 | if (m_info == NULL__null) return false; |
| 106 | return m_cond.broadcast(); |
| 107 | } |
| 108 | |
| 109 | bool RunInfoBuffer::waitRunning(int timeout) |
| 110 | { |
| 111 | if (m_info == NULL__null) return false; |
| 112 | MLockGuard lockGuard(m_mutex); |
| 113 | if (getState() != RunInfoBuffer::RUNNING) { |
| 114 | if (!wait(timeout)) { |
| 115 | return false; |
| 116 | } |
| 117 | } |
| 118 | return true; |
| 119 | } |
| 120 | |
| 121 | bool RunInfoBuffer::waitReady(int timeout) |
| 122 | { |
| 123 | if (m_info == NULL__null) return false; |
| 124 | MLockGuard lockGuard(m_mutex); |
| 125 | if (getState() != RunInfoBuffer::READY && |
| 126 | getState() != RunInfoBuffer::RUNNING) { |
| 127 | if (!wait(timeout)) { |
| 128 | if (getState() != RunInfoBuffer::READY && |
| 129 | getState() != RunInfoBuffer::RUNNING) { |
| 130 | return false; |
| 131 | } |
| 132 | } |
| 133 | } |
| 134 | return true; |
| 135 | } |
| 136 | |
| 137 | bool RunInfoBuffer::reportRunning() |
| 138 | { |
| 139 | if (m_info == NULL__null) return false; |
| 140 | MLockGuard lockGuard(m_mutex); |
| 141 | setState(RunInfoBuffer::RUNNING); |
| 142 | notify(); |
| 143 | return true; |
| 144 | } |
| 145 | |
| 146 | bool RunInfoBuffer::reportError(EFlag eflag) |
| 147 | { |
| 148 | if (m_info == NULL__null) return false; |
| 149 | MLockGuard lockGuard(m_mutex); |
| 150 | setErrorFlag(eflag); |
| 151 | notify(); |
| 152 | return true; |
| 153 | } |
| 154 | |
| 155 | bool RunInfoBuffer::reportReady() |
| 156 | { |
| 157 | if (m_info == NULL__null) return false; |
| 158 | MLockGuard lockGuard(m_mutex); |
| 159 | setState(RunInfoBuffer::READY); |
| 160 | notify(); |
| 161 | return true; |
| 162 | } |
| 163 | |
| 164 | bool RunInfoBuffer::reportNotReady() |
| 165 | { |
| 166 | if (m_info == NULL__null) return false; |
| 167 | MLockGuard lockGuard(m_mutex); |
| 168 | setState(RunInfoBuffer::NOTREADY); |
| 169 | notify(); |
| 170 | return true; |
| 171 | } |
| 172 | |
| 173 | void RunInfoBuffer::copyEventHeader(int* buf) |
| 174 | { |
| 175 | if (m_info == NULL__null) return; |
| 176 | memcpy(&(m_info->header), buf, sizeof(event_header)); |
| 177 | } |