コード例 #1
0
ファイル: log.cpp プロジェクト: 2016Sun/RemoteWriteMonitor
// Logs the entry according to Attribute and the thread condition.
EXTERN_C static NTSTATUS LogpPut(_In_ char *Message,
                                 _In_ ULONG Attribute) {
  auto status = STATUS_SUCCESS;

  // Log the entry to a file or buffer.
  auto &info = g_LogpLogBufferInfo;
  if (LogpIsLogFileEnabled(info)) {
    // Can it log it to a file now?
    if (((Attribute & LOGP_LEVEL_OPT_SAFE) == 0) &&
        KeGetCurrentIrql() == PASSIVE_LEVEL && !KeAreAllApcsDisabled()) {
      // Yes, it can. Do it.
      LogpWriteLogBufferToFile(&info);
      status = LogpWriteMessageToFile(Message, info);
    } else {
      // No, it cannot. Buffer it.
      status = LogpBufferMessage(Message, &info);
    }
  }

  // Can it safely be printed?
  if (KeGetCurrentIrql() >= CLOCK_LEVEL) {
    return STATUS_UNSUCCESSFUL;
  }

  const auto cr = strlen(Message) - 2;
  Message[cr] = '\n';
  Message[cr + 1] = '\0';
  DbgPrintEx(DPFLTR_DEFAULT_ID, DPFLTR_ERROR_LEVEL, "%s", Message);
  return status;
}
コード例 #2
0
ファイル: log.cpp プロジェクト: 2016Sun/RemoteWriteMonitor
EXTERN_C static VOID LogpBufferFlushThreadRoutine(_In_ void *StartContext) {
  PAGED_CODE();
  auto status = STATUS_SUCCESS;
  auto info = reinterpret_cast<LogBufferInfo *>(StartContext);
  LOG_DEBUG("Log thread started.");
  NT_ASSERT(LogpIsLogFileEnabled(*info));

  while (info->BufferFlushThreadShouldBeAlive) {
    LogpSleep(LOGP_AUTO_FLUSH_INTERVAL_MSEC);
    if (info->LogBufferHead[0]) {
      NT_ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
      NT_ASSERT(!KeAreAllApcsDisabled());
      status = LogpWriteLogBufferToFile(info);
      // Do not flush the file for overall performance. Even a case of
      // bug check, we should be able to recover logs by looking at both
      // log buffers.
    }
  }
  LOG_DEBUG("Log thread is ending.");
  PsTerminateSystemThread(status);
}
コード例 #3
0
ファイル: log.cpp プロジェクト: JulianVolodia/HyperPlatform
// Logs the entry according to attribute and the thread condition.
_Use_decl_annotations_ static NTSTATUS LogpPut(char *message, ULONG attribute) {
  auto status = STATUS_SUCCESS;

  auto do_DbgPrint = ((attribute & kLogpLevelOptSafe) == 0 &&
                      KeGetCurrentIrql() < CLOCK_LEVEL);

  // Log the entry to a file or buffer.
  auto &info = g_logp_log_buffer_info;
  if (LogpIsLogFileEnabled(info)) {
    // Can it log it to a file now?
    if (((attribute & kLogpLevelOptSafe) == 0) &&
        KeGetCurrentIrql() == PASSIVE_LEVEL && LogpIsLogFileActivated(info)) {
#pragma warning(push)
#pragma warning(disable : 28123)
      if (!KeAreAllApcsDisabled()) {
        // Yes, it can. Do it.
        LogpFlushLogBuffer(&info);
        status = LogpWriteMessageToFile(message, info);
      }
#pragma warning(pop)
    } else {
      // No, it cannot. Set the prited bit if needed, and then buffer it.
      if (do_DbgPrint) {
        LogpSetPrintedBit(message, true);
      }
      status = LogpBufferMessage(message, &info);
      LogpSetPrintedBit(message, false);
    }
  }

  // Can it safely be printed?
  if (do_DbgPrint) {
    LogpDoDbgPrint(message);
  }
  return status;
}