本文整理汇总了C++中DEVICE::set_unload方法的典型用法代码示例。如果您正苦于以下问题：C++ DEVICE::set_unload方法的具体用法？C++ DEVICE::set_unload怎么用？C++ DEVICE::set_unload使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DEVICE的用法示例。
在下文中一共展示了DEVICE::set_unload方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: acquire_device_for_read
//.........这里部分代码省略.........
Jmsg3(jcr, M_WARNING, 0, _("Read open device %s Volume \"%s\" failed: ERR=%s\n"),
dev->print_name(), dcr->VolumeName, dev->bstrerror());
}
goto default_path;
}
Dmsg1(rdbglvl, "opened dev %s OK\n", dev->print_name());
/* Read Volume Label */
Dmsg0(rdbglvl, "calling read-vol-label\n");
vol_label_status = read_dev_volume_label(dcr);
switch (vol_label_status) {
case VOL_OK:
Dmsg0(rdbglvl, "Got correct volume.\n");
ok = true;
dev->VolCatInfo = dcr->VolCatInfo; /* structure assignment */
break; /* got it */
case VOL_IO_ERROR:
Dmsg0(rdbglvl, "IO Error\n");
/*
* Send error message generated by read_dev_volume_label()
* only we really had a tape mounted. This supresses superfluous
* error messages when nothing is mounted.
*/
if (tape_previously_mounted) {
Jmsg(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
}
goto default_path;
case VOL_NAME_ERROR:
Dmsg3(rdbglvl, "Vol name=%s want=%s drv=%s.\n", dev->VolHdr.VolumeName,
dcr->VolumeName, dev->print_name());
if (dev->is_volume_to_unload()) {
goto default_path;
}
dev->set_unload(); /* force unload of unwanted tape */
if (!unload_autochanger(dcr, -1)) {
/* at least free the device so we can re-open with correct volume */
dev->close(dcr);
free_volume(dev);
}
dev->set_load();
/* Fall through */
default:
Jmsg1(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
default_path:
Dmsg0(rdbglvl, "default path\n");
tape_previously_mounted = true;
/*
* If the device requires mount, close it, so the device can be ejected.
*/
if (dev->requires_mount()) {
dev->close(dcr);
free_volume(dev);
}
/* Call autochanger only once unless ask_sysop called */
if (try_autochanger) {
int status;
Dmsg2(rdbglvl, "calling autoload Vol=%s Slot=%d\n",
dcr->VolumeName, dcr->VolCatInfo.Slot);
status = autoload_device(dcr, 0, NULL);
if (status > 0) {
try_autochanger = false;
continue; /* try reading volume mounted */
}
}