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0c4bfdda42
This patch adds another callback to a FDstream object. The original
callback is used by the daemon stream driver to handle events.
This callback is called if and only if the stream is about to be closed.
This might be used to handle cleanup steps after a fdstream exits. This
will be used later on in ensuring mutually exclusive access to consoles.
* src/fdstream.c:
- emit the callback, when stream is being closed
- add data structures needed to handle the callback
- add function to register callback
* src/fdstream.h:
- define function prototypes for the callback
60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/*
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* fdstream.h: generic streams impl for file descriptors
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*
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* Copyright (C) 2009-2012 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef __VIR_FDSTREAM_H_
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# define __VIR_FDSTREAM_H_
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# include "internal.h"
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# include "command.h"
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/* internal callback, the generic one is used up by daemon stream driver */
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/* the close callback is called with fdstream private data locked */
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typedef void (*virFDStreamInternalCloseCb)(virStreamPtr st, void *opaque);
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typedef void (*virFDStreamInternalCloseCbFreeOpaque)(void *opaque);
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int virFDStreamOpen(virStreamPtr st,
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int fd);
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int virFDStreamConnectUNIX(virStreamPtr st,
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const char *path,
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bool abstract);
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int virFDStreamOpenFile(virStreamPtr st,
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const char *path,
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unsigned long long offset,
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unsigned long long length,
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int oflags);
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int virFDStreamCreateFile(virStreamPtr st,
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const char *path,
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unsigned long long offset,
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unsigned long long length,
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int oflags,
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mode_t mode);
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int virFDStreamSetInternalCloseCb(virStreamPtr st,
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virFDStreamInternalCloseCb cb,
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void *opaque,
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virFDStreamInternalCloseCbFreeOpaque fcb);
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#endif /* __VIR_FDSTREAM_H_ */
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