scrub/common.h

   1 /*
   2  * Copyright (C) 2018 Oracle.  All Rights Reserved.
   3  *
   4  * Author: Darrick J. Wong <darrick.wong@oracle.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it would be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write the Free Software Foundation,
  18  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
  19  */
  20 #ifndef XFS_SCRUB_COMMON_H_
  21 #define XFS_SCRUB_COMMON_H_
  22
  23 /*
  24  * When reporting a defective metadata object to the console, this
  25  * is the size of the buffer to use to store the description of that
  26  * item.
  27  */
  28 #define DESCR_BUFSZ     256
  29
  30 bool xfs_scrub_excessive_errors(struct scrub_ctx *ctx);
  31
  32 enum error_level {
  33         S_ERROR = 0,
  34         S_WARN,
  35         S_INFO,
  36 };
  37
  38 void __str_out(struct scrub_ctx *ctx, const char *descr, enum error_level level,
  39                int error, const char *file, int line, const char *format, ...);
  40
  41 #define str_errno(ctx, str) \
  42         __str_out(ctx, str, S_ERROR,    errno,  __FILE__, __LINE__, NULL)
  43 #define str_error(ctx, str, ...) \
  44         __str_out(ctx, str, S_ERROR,    0,      __FILE__, __LINE__, __VA_ARGS__)
  45 #define str_warn(ctx, str, ...) \
  46         __str_out(ctx, str, S_WARN,     0,      __FILE__, __LINE__, __VA_ARGS__)
  47 #define str_info(ctx, str, ...) \
  48         __str_out(ctx, str, S_INFO,     0,      __FILE__, __LINE__, __VA_ARGS__)
  49
  50 #define dbg_printf(fmt, ...) \
  51         do {if (debug > 1) {printf(fmt, __VA_ARGS__);}} while (0)
  52
  53 /* Is this debug tweak enabled? */
  54 static inline bool
  55 debug_tweak_on(
  56         const char              *name)
  57 {
  58         return debug && getenv(name) != NULL;
  59 }
  60
  61 double timeval_subtract(struct timeval *tv1, struct timeval *tv2);
  62 double auto_space_units(unsigned long long kilobytes, char **units);
  63 double auto_units(unsigned long long number, char **units);
  64 unsigned int scrub_nproc(struct scrub_ctx *ctx);
  65 unsigned int scrub_nproc_workqueue(struct scrub_ctx *ctx);
  66
  67 #endif /* XFS_SCRUB_COMMON_H_ */