C++ (Cpp) restartable_read示例

示例#1

文件： mysqlerl.c 项目： bjc/mysqlerl

ETERM *
read_msg()
{
  ETERM *msg;
  unsigned char *buf;
  msglen_t len;

  if (restartable_read((unsigned char *)&len, sizeof(len)) == -1) {
    if (errno == 0) {
      logmsg("INFO: got end of file from Erlang process, shutting down.");
      exit(0);
    }

    logmsg("ERROR: couldn't read %d byte message prefix: %s.",
           sizeof(len), strerror(errno));

    exit(2);
  }

  len = ntohl(len);
  buf = (unsigned char *)safe_malloc(len);
  if (restartable_read(buf, len) == -1) {
    logmsg("ERROR: couldn't read %d byte message: %s.",
           len, strerror(errno));

    free(buf);
    exit(2);
  }

  msg = erl_decode(buf);
  free(buf);

  return msg;
}

示例#2

文件： msg.c 项目： system/mysqlerl

ETERM *
read_msg()
{
  ETERM *msg;
  unsigned char *buf;
  msglen_t len;

  logmsg("DEBUG: reading message length.");
  if (restartable_read((unsigned char *)&len, sizeof(len)) == -1) {
    logmsg("ERROR: couldn't read %d byte message prefix: %s.",
           sizeof(len), strerror(errno));

    exit(2);
  }

  len = ntohl(len);
  buf = (unsigned char *)malloc(len);
  if (buf == NULL) {
    logmsg("ERROR: Couldn't malloc %d bytes: %s.", len,
           strerror(errno));

    exit(2);
  }

  logmsg("DEBUG: reading message body (len: %d).", len);
  if (restartable_read(buf, len) == -1) {
    logmsg("ERROR: couldn't read %d byte message: %s.",
           len, strerror(errno));

    free(buf);
    exit(2);
  }

  msg = erl_decode(buf);
  free(buf);

  return msg;
}