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8a0c327f11
We can't use virFileInData() with block devices, but we can emulate being in data section all the time (vol-upload case). Alternatively, we can't just lseek() beyond EOF with block devices to create a hole, we will have to write zeroes (vol-download case). But to decide we need to know if the FD we are reading data from / writing data to is a block device. Store this information in _virshStreamCallbackData. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/*
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* virsh-util.h: helpers for virsh
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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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#pragma once
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#include "virsh.h"
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#include <libxml/parser.h>
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#include <libxml/xpath.h>
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virDomainPtr
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virshLookupDomainBy(vshControl *ctl,
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const char *name,
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unsigned int flags);
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virDomainPtr
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virshCommandOptDomainBy(vshControl *ctl,
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const vshCmd *cmd,
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const char **name,
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unsigned int flags);
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virDomainPtr
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virshCommandOptDomain(vshControl *ctl,
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const vshCmd *cmd,
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const char **name);
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typedef virDomain virshDomain;
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void
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virshDomainFree(virDomainPtr dom);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(virshDomain, virshDomainFree);
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typedef virSecret virshSecret;
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void
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virshSecretFree(virSecretPtr secret);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(virshSecret, virshSecretFree);
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void
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virshDomainCheckpointFree(virDomainCheckpointPtr chk);
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void
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virshDomainSnapshotFree(virDomainSnapshotPtr snap);
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int
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virshDomainState(vshControl *ctl,
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virDomainPtr dom,
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int *reason);
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int
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virshStreamSink(virStreamPtr st,
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const char *bytes,
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size_t nbytes,
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void *opaque);
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typedef struct _virshStreamCallbackData virshStreamCallbackData;
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typedef virshStreamCallbackData *virshStreamCallbackDataPtr;
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struct _virshStreamCallbackData {
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vshControl *ctl;
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int fd;
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bool isBlock;
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};
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int
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virshStreamSource(virStreamPtr st,
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char *bytes,
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size_t nbytes,
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void *opaque);
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int
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virshStreamSourceSkip(virStreamPtr st,
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long long offset,
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void *opaque);
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int
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virshStreamSkip(virStreamPtr st,
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long long offset,
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void *opaque);
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int
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virshStreamInData(virStreamPtr st,
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int *inData,
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long long *offset,
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void *opaque);
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int
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virshDomainGetXMLFromDom(vshControl *ctl,
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virDomainPtr dom,
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unsigned int flags,
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xmlDocPtr *xml,
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xmlXPathContextPtr *ctxt)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(4)
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ATTRIBUTE_NONNULL(5) G_GNUC_WARN_UNUSED_RESULT;
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int
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virshDomainGetXML(vshControl *ctl,
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const vshCmd *cmd,
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unsigned int flags,
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xmlDocPtr *xml,
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xmlXPathContextPtr *ctxt)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(4)
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ATTRIBUTE_NONNULL(5) G_GNUC_WARN_UNUSED_RESULT;
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