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f27125f98f
This patch covers a number of areas: 1) sysfs.h is fixed up to use the common dbg() macro. This fixes the case where DEBUG is defined but USE_LOG isn't. 2) udevstart.c is modified to include the proper headers, rather than getting them indirectly which can break depending on Makefile flags 3) udevd.c gets some major changes: a) I added a pipe from the signal handler. This fixes the race conditions that I mentioned earlier. Basically, the point of the pipe is to force the select() call to return immediately if a signal handler fired before we actually started the select() call. This then lets us run the appropriate code based on flags set in the signal handler proper. b) I added a number of flags to coalesce calls to common routines. This should make things slightly more efficient. c) since most calls will tend to come in with a sequence number larger than what has been received, I switched msg_queue_insert() to scan the msg_list backwards to improve performance. filename="udevd.diff"
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/*
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* sysfs.h
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*
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* Internal Header Definitions for libsysfs
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*
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* Copyright (C) IBM Corp. 2003
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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 _SYSFS_H_
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#define _SYSFS_H_
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include "dlist.h"
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/* Debugging */
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#ifdef DEBUG
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#include "../logging.h"
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#define dprintf(format, arg...) \
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dbg(format, ##arg)
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#else
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#define dprintf(format, arg...) do { } while (0)
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#endif
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#endif /* _SYSFS_H_ */
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