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5e6143fbcc
For logging one-shot entries to the VM log file it's quite a waste to hold open the file descriptor for logging that is provided by the current API. This new API will be ideal for logging one-shot entries to the file e.g. at the point when we shut the VM down rather than having to add the whole file-descriptor infrastructure. Additionally this will allow to add the messages even after restart of libvirtd since virtlogd doesn't allow to obtain a regular context with filedescriptors while the VM is still active.
79 lines
3.2 KiB
C
79 lines
3.2 KiB
C
/*
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* log_handler.h: log management daemon handler
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*
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* Copyright (C) 2015 Red Hat, Inc.
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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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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#ifndef __VIR_LOG_HANDLER_H__
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# define __VIR_LOG_HANDLER_H__
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# include "internal.h"
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# include "virjson.h"
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typedef struct _virLogHandler virLogHandler;
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typedef virLogHandler *virLogHandlerPtr;
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typedef void (*virLogHandlerShutdownInhibitor)(bool inhibit,
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void *opaque);
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virLogHandlerPtr virLogHandlerNew(bool privileged,
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virLogHandlerShutdownInhibitor inhibitor,
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void *opaque);
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virLogHandlerPtr virLogHandlerNewPostExecRestart(virJSONValuePtr child,
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bool privileged,
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virLogHandlerShutdownInhibitor inhibitor,
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void *opaque);
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void virLogHandlerFree(virLogHandlerPtr handler);
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int virLogHandlerDomainOpenLogFile(virLogHandlerPtr handler,
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const char *driver,
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const unsigned char *domuuid,
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const char *domname,
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const char *path,
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bool trunc,
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ino_t *inode,
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off_t *offset);
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int virLogHandlerDomainGetLogFilePosition(virLogHandlerPtr handler,
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const char *path,
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unsigned int flags,
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ino_t *inode,
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off_t *offset);
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char *virLogHandlerDomainReadLogFile(virLogHandlerPtr handler,
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const char *path,
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ino_t inode,
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off_t offset,
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size_t maxlen,
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unsigned int flags);
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int virLogHandlerDomainAppendLogFile(virLogHandlerPtr handler,
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const char *driver,
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const unsigned char *domuuid,
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const char *domname,
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const char *path,
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const char *message,
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unsigned int flags);
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virJSONValuePtr virLogHandlerPreExecRestart(virLogHandlerPtr handler);
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#endif /** __VIR_LOG_HANDLER_H__ */
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