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751163a743
This fixes commitf50d4011cdwhich introduced a problem when using older lvm2 code with newer libdm. In this case, the old LVM didn't recognize new _LOG_BYPASS_REPORT flag that libdm-report code used. This ended up with no output at all from libdm where log_print_bypass_report was called because the _LOG_BYPASS_REPORT was not masked properly in lvm2's print_log fn which was called as callback function for logging. With this patch, the lvm2 registers separate print_log_libdm logging function for libdm instead. The print_log_libdm is exactly the same as print_log (used throughout lvm2 code) but it checks whether we're printing common line on output where "common" means not going to stderr, not a warning and not an error and if we are, it adds the _LOG_BYPASS_REPORT flag so the log_print goes directly to output, not to any log report. So this achieves the same goal as inf50d4011cd, just doing it in a way that newer libdm is still compatible with older lvm2 code (libdm-report is the only code using log_print). Looking at the opposite mixture - older libdm with newer lvm2 code, that won't be compilable because the new log report functionality that is in lvm2 also requires new dm_report_group_* libdm functions so we don't need to care here.
112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _LVM_LOGGING_H
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#define _LVM_LOGGING_H
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__attribute__ ((format(printf, 5, 6)))
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void print_log(int level, const char *file, int line, int dm_errno_or_class,
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const char *format, ...);
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__attribute__ ((format(printf, 5, 6)))
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void print_log_libdm(int level, const char *file, int line, int dm_errno_or_class,
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const char *format, ...);
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#define LOG_LINE(l, x...) \
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print_log(l, __FILE__, __LINE__ , 0, ## x)
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#define LOG_LINE_WITH_ERRNO(l, e, x...) \
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print_log(l, __FILE__, __LINE__ , e, ## x)
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#define LOG_LINE_WITH_CLASS(l, c, x...) \
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print_log(l, __FILE__, __LINE__ , c, ## x)
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#include "log.h"
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typedef void (*lvm2_log_fn_t) (int level, const char *file, int line,
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int dm_errno_or_class, const char *message);
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void init_log_fn(lvm2_log_fn_t log_fn);
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void init_indent(int indent);
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void init_msg_prefix(const char *prefix);
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void init_log_file(const char *log_file, int append);
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void unlink_log_file(int ret);
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void init_log_direct(const char *log_file, int append);
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void init_log_while_suspended(int log_while_suspended);
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void init_abort_on_internal_errors(int fatal);
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void fin_log(void);
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void release_log_memory(void);
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void reset_log_duplicated(void);
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void init_syslog(int facility);
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void fin_syslog(void);
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int error_message_produced(void);
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void reset_lvm_errno(int store_errmsg);
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int stored_errno(void);
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const char *stored_errmsg(void);
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const char *stored_errmsg_with_clear(void);
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/* Suppress messages to stdout/stderr (1) or everywhere (2) */
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/* Returns previous setting */
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int log_suppress(int suppress);
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/* Suppress messages to syslog */
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void syslog_suppress(int suppress);
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/* Hooks to handle logging through report. */
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typedef enum {
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LOG_REPORT_CONTEXT_NULL,
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LOG_REPORT_CONTEXT_PROCESSING,
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LOG_REPORT_CONTEXT_COUNT
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} log_report_context_t;
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typedef enum {
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LOG_REPORT_OBJECT_TYPE_NULL,
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LOG_REPORT_OBJECT_TYPE_ORPHAN,
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LOG_REPORT_OBJECT_TYPE_PV,
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LOG_REPORT_OBJECT_TYPE_LABEL,
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LOG_REPORT_OBJECT_TYPE_VG,
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LOG_REPORT_OBJECT_TYPE_LV,
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LOG_REPORT_OBJECT_TYPE_COUNT
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} log_report_object_type_t;
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typedef struct log_report {
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struct dm_report *report;
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log_report_context_t context;
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log_report_object_type_t object_type;
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const char *object_name;
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const char *object_id;
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const char *object_group;
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const char *object_group_id;
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} log_report_t;
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log_report_t log_get_report_state(void);
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void log_restore_report_state(log_report_t log_report);
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void log_set_report(struct dm_report *report);
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void log_set_report_context(log_report_context_t context);
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void log_set_report_object_type(log_report_object_type_t object_type);
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void log_set_report_object_group_and_group_id(const char *group, const char *group_id);
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void log_set_report_object_name_and_id(const char *name, const char *id);
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const char *log_get_report_context_name(log_report_context_t context);
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const char *log_get_report_object_type_name(log_report_object_type_t object_type);
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#endif
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