freebsd-dev/lib/libdevdctl/event_factory.cc

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zfsd(8), the ZFS fault management daemon Add zfsd, which deals with hard drive faults in ZFS pools. It manages hotspares and replements in drive slots that publish physical paths. cddl/usr.sbin/zfsd Add zfsd(8) and its unit tests cddl/usr.sbin/Makefile Add zfsd to the build lib/libdevdctl A C++ library that helps devd clients process events lib/Makefile share/mk/bsd.libnames.mk share/mk/src.libnames.mk Add libdevdctl to the build. It's a private library, unusable by out-of-tree software. etc/defaults/rc.conf By default, set zfsd_enable to NO etc/mtree/BSD.include.dist Add a directory for libdevdctl's include files etc/mtree/BSD.tests.dist Add a directory for zfsd's unit tests etc/mtree/BSD.var.dist Add /var/db/zfsd/cases, where zfsd stores case files while it's shut down. etc/rc.d/Makefile etc/rc.d/zfsd Add zfsd's rc script sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c Fix the resource.fs.zfs.statechange message. It had a number of problems: It was only being emitted on a transition to the HEALTHY state. That made it impossible for zfsd to take actions based on drives getting sicker. It compared the new state to vdev_prevstate, which is the state that the vdev had the last time it was opened. That doesn't make sense, because a vdev can change state multiple times without being reopened. vdev_set_state contains logic that will change the device's new state based on various conditions. However, the statechange event was being posted _before_ that logic took effect. Now it's being posted after. Submitted by: gibbs, asomers, mav, allanjude Reviewed by: mav, delphij Relnotes: yes Sponsored by: Spectra Logic Corp, iX Systems Differential Revision: https://reviews.freebsd.org/D6564
2016-05-28 17:43:40 +00:00
/*-
* Copyright (c) 2013 Spectra Logic Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* Authors: Justin T. Gibbs (Spectra Logic Corporation)
*/
/**
* \file event_factory.cc
*/
#include <sys/cdefs.h>
#include <sys/time.h>
#include <list>
#include <map>
#include <string>
#include "guid.h"
#include "event.h"
#include "event_factory.h"
__FBSDID("$FreeBSD$");
/*================================== Macros ==================================*/
#define NUM_ELEMENTS(x) (sizeof(x) / sizeof(*x))
/*============================ Namespace Control =============================*/
namespace DevdCtl
{
/*=========================== Class Implementations ==========================*/
/*------------------------------- EventFactory -------------------------------*/
//- Event Public Methods -------------------------------------------------------
EventFactory::EventFactory(Event::BuildMethod *defaultBuildMethod)
: m_defaultBuildMethod(defaultBuildMethod)
{
}
void
EventFactory::UpdateRegistry(Record regEntries[], size_t numEntries)
{
EventFactory::Record *rec(regEntries);
EventFactory::Record *lastRec(rec + numEntries - 1);
for (; rec <= lastRec; rec++) {
Key key(rec->m_type, rec->m_subsystem);
if (rec->m_buildMethod == NULL)
m_registry.erase(key);
else
m_registry[key] = rec->m_buildMethod;
}
}
Event *
EventFactory::Build(Event::Type type, NVPairMap &nvpairs,
const std::string eventString) const
{
Key key(type, nvpairs["system"]);
Event::BuildMethod *buildMethod(m_defaultBuildMethod);
Registry::const_iterator foundMethod(m_registry.find(key));
if (foundMethod != m_registry.end())
buildMethod = foundMethod->second;
if (buildMethod == NULL) {
delete &nvpairs;
return (NULL);
}
return (buildMethod(type, nvpairs, eventString));
}
} // namespace DevdCtl