| /* |
| * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. |
| * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. |
| * |
| * This file is part of LVM2. |
| * |
| * This copyrighted material is made available to anyone wishing to use, |
| * modify, copy, or redistribute it subject to the terms and conditions |
| * of the GNU Lesser General Public License v.2.1. |
| * |
| * You should have received a copy of the GNU Lesser General Public License |
| * along with this program; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef _LVM_LOG_H |
| #define _LVM_LOG_H |
| |
| /* |
| * printf()-style macros to use for messages: |
| * |
| * log_error - always print to stderr. |
| * log_print - always print to stdout. Use this instead of printf. |
| * log_verbose - print to stdout if verbose is set (-v) |
| * log_very_verbose - print to stdout if verbose is set twice (-vv) |
| * log_debug - print to stdout if verbose is set three times (-vvv) |
| * |
| * In addition, messages will be logged to file or syslog if they |
| * are more serious than the log level specified with the log/debug_level |
| * parameter in the configuration file. These messages get the file |
| * and line number prepended. 'stack' (without arguments) can be used |
| * to log this information at debug level. |
| * |
| * log_sys_error and log_sys_very_verbose are for errors from system calls |
| * e.g. log_sys_error("stat", filename); |
| * /dev/fd/7: stat failed: No such file or directory |
| * |
| */ |
| |
| #include <errno.h> |
| |
| #define EUNCLASSIFIED -1 /* Generic error code */ |
| |
| #define _LOG_FATAL 0x0002 |
| #define _LOG_ERR 0x0003 |
| #define _LOG_WARN 0x0004 |
| #define _LOG_NOTICE 0x0005 |
| #define _LOG_INFO 0x0006 |
| #define _LOG_DEBUG 0x0007 |
| #define _LOG_STDERR 0x0080 /* force things to go to stderr, even if loglevel would make them go to stdout */ |
| #define _LOG_ONCE 0x0100 /* downgrade to NOTICE if this has been already logged */ |
| #define _LOG_BYPASS_REPORT 0x0200 /* do not log through report even if report available */ |
| |
| #define INTERNAL_ERROR "Internal error: " |
| |
| /* |
| * Classes available for debug log messages. |
| * These are also listed in doc/example.conf |
| * and lib/commands/toolcontext.c:_parse_debug_classes() |
| */ |
| #define LOG_CLASS_MEM 0x0001 /* "memory" */ |
| #define LOG_CLASS_DEVS 0x0002 /* "devices" */ |
| #define LOG_CLASS_ACTIVATION 0x0004 /* "activation" */ |
| #define LOG_CLASS_ALLOC 0x0008 /* "allocation" */ |
| #define LOG_CLASS_LVMETAD 0x0010 /* "lvmetad" */ |
| #define LOG_CLASS_METADATA 0x0020 /* "metadata" */ |
| #define LOG_CLASS_CACHE 0x0040 /* "cache" */ |
| #define LOG_CLASS_LOCKING 0x0080 /* "locking" */ |
| #define LOG_CLASS_LVMPOLLD 0x0100 /* "lvmpolld" */ |
| #define LOG_CLASS_DBUS 0x0200 /* "dbus" */ |
| |
| #define log_debug(x...) LOG_LINE(_LOG_DEBUG, x) |
| #define log_debug_mem(x...) LOG_LINE_WITH_CLASS(_LOG_DEBUG, LOG_CLASS_MEM, x) |
| #define log_debug_devs(x...) LOG_LINE_WITH_CLASS(_LOG_DEBUG, LOG_CLASS_DEVS, x) |
| #define log_debug_activation(x...) LOG_LINE_WITH_CLASS(_LOG_DEBUG, LOG_CLASS_ACTIVATION, x) |
| #define log_debug_alloc(x...) LOG_LINE_WITH_CLASS(_LOG_DEBUG, LOG_CLASS_ALLOC, x) |
| #define log_debug_lvmetad(x...) LOG_LINE_WITH_CLASS(_LOG_DEBUG, LOG_CLASS_LVMETAD, x) |
| #define log_debug_metadata(x...) LOG_LINE_WITH_CLASS(_LOG_DEBUG, LOG_CLASS_METADATA, x) |
| #define log_debug_cache(x...) LOG_LINE_WITH_CLASS(_LOG_DEBUG, LOG_CLASS_CACHE, x) |
| #define log_debug_locking(x...) LOG_LINE_WITH_CLASS(_LOG_DEBUG, LOG_CLASS_LOCKING, x) |
| #define log_debug_lvmpolld(x...) LOG_LINE_WITH_CLASS(_LOG_DEBUG, LOG_CLASS_LVMPOLLD, x) |
| #define log_debug_dbus(x...) LOG_LINE_WITH_CLASS(_LOG_DEBUG, LOG_CLASS_DBUS, x) |
| |
| #define log_info(x...) LOG_LINE(_LOG_INFO, x) |
| #define log_notice(x...) LOG_LINE(_LOG_NOTICE, x) |
| #define log_warn(x...) LOG_LINE(_LOG_WARN | _LOG_STDERR, x) |
| #define log_warn_suppress(s, x...) LOG_LINE(s ? _LOG_NOTICE : _LOG_WARN | _LOG_STDERR, x) |
| #define log_err(x...) LOG_LINE_WITH_ERRNO(_LOG_ERR, EUNCLASSIFIED, x) |
| #define log_err_suppress(s, x...) LOG_LINE_WITH_ERRNO(s ? _LOG_NOTICE : _LOG_ERR, EUNCLASSIFIED, x) |
| #define log_err_once(x...) LOG_LINE_WITH_ERRNO(_LOG_ERR | _LOG_ONCE, EUNCLASSIFIED, x) |
| #define log_fatal(x...) LOG_LINE_WITH_ERRNO(_LOG_FATAL, EUNCLASSIFIED, x) |
| |
| #define stack log_debug("<backtrace>") /* Backtrace on error */ |
| #define log_very_verbose(args...) log_info(args) |
| #define log_verbose(args...) log_notice(args) |
| #define log_print(args...) LOG_LINE(_LOG_WARN, args) |
| #define log_print_unless_silent(args...) LOG_LINE(silent_mode() ? _LOG_NOTICE : _LOG_WARN, args) |
| #define log_error(args...) log_err(args) |
| #define log_error_suppress(s, args...) log_err_suppress(s, args) |
| #define log_error_once(args...) log_err_once(args) |
| #define log_errno(args...) LOG_LINE_WITH_ERRNO(_LOG_ERR, args) |
| |
| /* System call equivalents */ |
| #define log_sys_error(x, y) \ |
| log_err("%s%s%s failed: %s", y, *y ? ": " : "", x, strerror(errno)) |
| #define log_sys_error_suppress(s, x, y) \ |
| log_err_suppress(s, "%s%s%s failed: %s", y, *y ? ": " : "", x, strerror(errno)) |
| #define log_sys_very_verbose(x, y) \ |
| log_info("%s: %s failed: %s", y, x, strerror(errno)) |
| #define log_sys_debug(x, y) \ |
| log_debug("%s: %s failed: %s", y, x, strerror(errno)) |
| |
| #define return_0 do { stack; return 0; } while (0) |
| #define return_NULL do { stack; return NULL; } while (0) |
| #define return_EINVALID_CMD_LINE \ |
| do { stack; return EINVALID_CMD_LINE; } while (0) |
| #define return_ECMD_FAILED do { stack; return ECMD_FAILED; } while (0) |
| #define goto_out do { stack; goto out; } while (0) |
| #define goto_bad do { stack; goto bad; } while (0) |
| |
| #endif |