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7a03785d88
This will allow us to start or stop nbdkit for just a single disk source or for every source in the backing chain. This will be used in following patches. Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/*
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* qemu_nbdkit.h: helpers for using nbdkit
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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#include "internal.h"
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#include "storage_source_conf.h"
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#include "vircgroup.h"
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#include "virenum.h"
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#include "virfilecache.h"
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typedef struct _qemuNbdkitCaps qemuNbdkitCaps;
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typedef struct _qemuNbdkitProcess qemuNbdkitProcess;
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typedef enum {
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/* 0 */
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QEMU_NBDKIT_CAPS_PLUGIN_CURL,
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QEMU_NBDKIT_CAPS_PLUGIN_SSH,
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QEMU_NBDKIT_CAPS_FILTER_READAHEAD,
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QEMU_NBDKIT_CAPS_LAST,
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} qemuNbdkitCapsFlags;
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VIR_ENUM_DECL(qemuNbdkitCaps);
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typedef struct _virQEMUDriver virQEMUDriver;
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qemuNbdkitCaps *
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qemuNbdkitCapsNew(const char *path);
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virFileCache *
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qemuNbdkitCapsCacheNew(const char *cachedir);
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bool
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qemuNbdkitInitStorageSource(qemuNbdkitCaps *nbdkitCaps,
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virStorageSource *source,
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char *statedir,
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const char *alias,
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uid_t user,
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gid_t group);
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void
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qemuNbdkitReconnectStorageSource(virStorageSource *source,
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const char *pidfile,
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const char *socketfile);
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int
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qemuNbdkitStartStorageSource(virQEMUDriver *driver,
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virDomainObj *vm,
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virStorageSource *src,
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bool chain);
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void
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qemuNbdkitStopStorageSource(virStorageSource *src,
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virDomainObj *vm,
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bool chain);
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int
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qemuNbdkitStorageSourceManageProcess(virStorageSource *src,
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virDomainObj *vm);
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bool
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qemuNbdkitCapsGet(qemuNbdkitCaps *nbdkitCaps,
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qemuNbdkitCapsFlags flag);
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void
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qemuNbdkitCapsSet(qemuNbdkitCaps *nbdkitCaps,
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qemuNbdkitCapsFlags flag);
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#define QEMU_TYPE_NBDKIT_CAPS qemu_nbdkit_caps_get_type()
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G_DECLARE_FINAL_TYPE(qemuNbdkitCaps, qemu_nbdkit_caps, QEMU, NBDKIT_CAPS, GObject);
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struct _qemuNbdkitProcess {
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qemuNbdkitCaps *caps;
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virStorageSource *source;
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char *pidfile;
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char *socketfile;
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uid_t user;
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gid_t group;
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pid_t pid;
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int eventwatch;
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};
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int
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qemuNbdkitProcessStart(qemuNbdkitProcess *proc,
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virDomainObj *vm,
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virQEMUDriver *driver);
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int
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qemuNbdkitProcessRestart(qemuNbdkitProcess *proc,
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virDomainObj *vm);
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int
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qemuNbdkitProcessStop(qemuNbdkitProcess *proc,
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virDomainObj *vm);
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void
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qemuNbdkitProcessFree(qemuNbdkitProcess *proc);
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int
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qemuNbdkitProcessSetupCgroup(qemuNbdkitProcess *proc,
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virCgroup *cgroup);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(qemuNbdkitProcess, qemuNbdkitProcessFree);
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