C++ BreakPointInfoPtr::getFuncName方法代码示例

// Hold the entire set of breakpoints, and sift breakpoints by function and
// class name into separate containers for later.
void DebuggerProxy::setBreakPoints(BreakPointInfoPtrVec &breakpoints) {
  TRACE(2, "DebuggerProxy::setBreakPoints\n");
  // Hold the break mutex while we update the proxy's state. There's no need
  // to hold it over the longer operation to set breakpoints in each file later.
  {
    WriteLock lock(m_breakMutex);
    m_breakpoints = breakpoints;
    m_hasBreakPoints = !m_breakpoints.empty();
    m_breaksEnterFunc.clear();
    m_breaksEnterClsMethod.clear();
    for (unsigned int i = 0; i < m_breakpoints.size(); i++) {
      BreakPointInfoPtr bp = m_breakpoints[i];
      std::string funcFullName = bp->getFuncName();
      if (funcFullName.empty()) {
        continue;
      }
      {
        StringDataMap::accessor acc;
        const StringData* sd = StringData::GetStaticString(funcFullName);
        m_breaksEnterFunc.insert(acc, sd);
      }
      std::string clsName = bp->getClass();
      if (!clsName.empty()) {
        StringDataMap::accessor acc;
        const StringData* sd = StringData::GetStaticString(clsName);
        m_breaksEnterClsMethod.insert(acc, sd);
      }
    }
  }
  VM::phpSetBreakPointsInAllFiles(this); // Apply breakpoints to the code.
}

void HphpdHook::onDefFunc(const Func* f) {
  // Make sure we have a proxy
  DebuggerProxyPtr proxy = Debugger::GetProxy();
  if (proxy == nullptr) return;

  // If the proxy has an enabled breakpoint that matches entry into the given
  // function, arrange for the VM to stop execution and notify the debugger
  // whenever execution enters the given function.
  std::vector<BreakPointInfoPtr> bps;
  proxy->getBreakPoints(bps);
  for (unsigned int i = 0; i < bps.size(); i++) {
    BreakPointInfoPtr bp = bps[i];
    if (bp->m_state == BreakPointInfo::Disabled) continue;
    if (!matchFunctionName(bp->getFuncName(), f)) continue;
    bp->m_bindState = BreakPointInfo::KnownToBeValid;
    phpAddBreakPointFuncEntry(f);
    return;
  }
}

void proxySetBreakPoints(DebuggerProxy* proxy) {
  std::vector<BreakPointInfoPtr> bps;
  proxy->getBreakPoints(bps);
  for (unsigned int i = 0; i < bps.size(); i++) {
    BreakPointInfoPtr bp = bps[i];
    bp->m_bindState = BreakPointInfo::Unknown;
    auto className = bp->getClass();
    if (!className.empty()) {
      auto clsName = makeStaticString(className);
      auto cls = Unit::lookupClass(clsName);
      if (cls == nullptr) continue;
      bp->m_bindState = BreakPointInfo::KnownToBeInvalid;
      size_t numFuncs = cls->numMethods();
      if (numFuncs == 0) continue;
      auto methodName = bp->getFunction();
      for (size_t i = 0; i < numFuncs; ++i) {
        auto f = cls->getMethod(i);
        if (!matchFunctionName(methodName, f)) continue;
        bp->m_bindState = BreakPointInfo::KnownToBeValid;
        phpAddBreakPointFuncEntry(f);
        break;
      }
      // TODO(#2527229): what about superclass methods accessed via the derived
      // class?
      continue;
    }
    auto funcName = bp->getFuncName();
    if (!funcName.empty()) {
      auto fName = makeStaticString(funcName);
      Func* f = Unit::lookupFunc(fName);
      if (f == nullptr) continue;
      bp->m_bindState = BreakPointInfo::KnownToBeValid;
      phpAddBreakPointFuncEntry(f);
      continue;
    }
    auto fileName = bp->m_file;
    if (!fileName.empty()) {
      for (auto& kv : g_context->m_evaledFiles) {
        auto const unit = kv.second;
        if (!BreakPointInfo::MatchFile(fileName,
                            unit->filepath()->toCppString())) {
          continue;
        }
        addBreakPointInUnit(bp, unit);
        break;
      }
      continue;
    }
    auto exceptionClassName = bp->getExceptionClass();
    if (exceptionClassName == "@") {
      bp->m_bindState = BreakPointInfo::KnownToBeValid;
      continue;
    } else if (!exceptionClassName.empty()) {
      auto expClsName = makeStaticString(exceptionClassName);
      auto cls = Unit::lookupClass(expClsName);
      if (cls != nullptr) {
        auto baseClsName = makeStaticString("Exception");
        auto baseCls = Unit::lookupClass(baseClsName);
        if (baseCls != nullptr) {
          if (cls->classof(baseCls)) {
            bp->m_bindState = BreakPointInfo::KnownToBeValid;
          } else {
            bp->m_bindState = BreakPointInfo::KnownToBeInvalid;
          }
        }
      }
      continue;
    } else {
      continue;
    }
    // If we get here, the break point is of a type that does
    // not need to be explicitly enabled in the VM. For example
    // a break point that get's triggered when the server starts
    // to process a page request.
    bp->m_bindState = BreakPointInfo::KnownToBeValid;
  }
}