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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "directory.h"
#include "devicemanager.h"
#include <vespa/vespalib/util/exceptions.h>
#include <vespa/log/log.h>
LOG_SETUP(".persistence.device.directory");
namespace storage {
namespace memfile {
const IOEvent*
Directory::getLastEvent() const
{
if (!_events.empty()) return &_events.back();
return _partition->getLastEvent();
}
Device::State
Directory::getState() const
{
const IOEvent* event = getLastEvent();
return (event ? event->getState() : Device::OK);
}
void
Directory::print(std::ostream& out, bool verbose,
const std::string& indent) const
{
out << _path << " ";
Device::print(out, verbose, indent);
}
Directory::Directory(DeviceManager& manager, uint16_t index,
const std::string& path)
: Device(manager),
_index(index),
_path(path),
_partition(manager.getPartition(path))
{
assert(_partition.get());
}
namespace {
struct Entry {
std::string path;
Device::State status;
std::string description;
Entry();
~Entry();
};
Entry::Entry() {}
Entry::~Entry() {}
Entry parseDirectoryString(const std::string& serialized) {
while (1) {
Entry e;
std::string::size_type pos1 = serialized.find(' ');
if (pos1 == std::string::npos) break;
e.path = serialized.substr(0, pos1);
std::string::size_type pos2 = serialized.find(' ', pos1 + 1);
std::string num = serialized.substr(pos1 + 1, pos2 - pos1 - 1);
char* c;
e.status = static_cast<Device::State>(
strtoul(num.c_str(), &c, 10));
if (*c != '\0') break;
if (pos2 != std::string::npos) {
e.description = serialized.substr(pos2 + 1);
}
return e;
}
std::string msg = "Illegal line in disk status file: '" + serialized
+ "'. Ignoring it.";
LOG(warning, "%s", msg.c_str());
throw vespalib::IllegalArgumentException(msg, VESPA_STRLOC);
}
}
Directory::Directory(const std::string& serialized,
DeviceManager& manager)
: Device(manager),
_index(0),
_path(parseDirectoryString(serialized).path),
_partition(manager.getPartition(_path))
{
assert(_partition.get());
Entry e = parseDirectoryString(serialized);
if (e.status != Device::OK) {
addEvent(IOEvent(manager.getClock().getTimeInSeconds().getTime(),
e.status, e.description, VESPA_STRLOC));
}
}
void Directory::addEvent(const IOEvent& e)
{
switch (e.getState()) {
case Device::IO_FAILURE:
_partition->addEvent(e);
break;
case Device::PATH_FAILURE:
case Device::NO_PERMISSION:
case Device::INTERNAL_FAILURE:
case Device::DISABLED_BY_ADMIN:
default:
if (!e.isGlobal()) {
_events.push_back(e);
}
_manager.notifyDirectoryEvent(*this, e);
}
}
void
Directory::addEvent(Device::State s,
const std::string& description,
const std::string& location)
{
addEvent(IOEvent(
_manager.getClock().getTimeInSeconds().getTime(),
s,
description,
location));
}
void Directory::addEvents(const Directory& d)
{
std::list<IOEvent> events;
events.insert(events.end(), d.getEvents().begin(), d.getEvents().end());
events.insert(events.end(), d.getPartition().getEvents().begin(),
d.getPartition().getEvents().end());
events.insert(events.end(), d.getPartition().getDisk().getEvents().begin(),
d.getPartition().getDisk().getEvents().end());
for (std::list<IOEvent>::const_iterator it = events.begin();
it != events.end(); ++it)
{
addEvent(*it);
}
}
} // memfile
} // storage
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