mirror of https://github.com/tstack/lnav
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
189 lines
5.9 KiB
C++
189 lines
5.9 KiB
C++
/**
|
|
* Copyright (c) 2014, Timothy Stack
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* * Neither the name of Timothy Stack nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* @file lnav_log.hh
|
|
*/
|
|
|
|
#ifndef lnav_log_hh
|
|
#define lnav_log_hh
|
|
|
|
#include <cstdint>
|
|
#include <string>
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
|
|
#ifndef lnav_dead2
|
|
# define lnav_dead2 __attribute__((noreturn))
|
|
#endif
|
|
|
|
#include "optional.hpp"
|
|
|
|
struct termios;
|
|
|
|
enum class lnav_log_level_t : uint32_t {
|
|
TRACE,
|
|
DEBUG,
|
|
INFO,
|
|
WARNING,
|
|
ERROR,
|
|
};
|
|
|
|
void log_argv(int argc, char* argv[]);
|
|
void log_host_info();
|
|
void log_rusage_raw(enum lnav_log_level_t level,
|
|
const char* src_file,
|
|
int line_number,
|
|
const struct rusage& ru);
|
|
void log_msg(enum lnav_log_level_t level,
|
|
const char* src_file,
|
|
int line_number,
|
|
const char* fmt,
|
|
...);
|
|
void log_msg_extra(const char* fmt, ...);
|
|
void log_msg_extra_complete();
|
|
void log_install_handlers();
|
|
void log_abort() lnav_dead2;
|
|
void log_pipe_err(int fd);
|
|
void log_set_thread_prefix(std::string prefix);
|
|
void log_backtrace(lnav_log_level_t level);
|
|
|
|
struct log_state_dumper {
|
|
public:
|
|
log_state_dumper();
|
|
|
|
virtual ~log_state_dumper();
|
|
|
|
virtual void log_state(){
|
|
|
|
};
|
|
|
|
log_state_dumper(const log_state_dumper&) = delete;
|
|
log_state_dumper& operator=(const log_state_dumper&) = delete;
|
|
};
|
|
|
|
struct log_crash_recoverer {
|
|
public:
|
|
log_crash_recoverer();
|
|
|
|
virtual ~log_crash_recoverer();
|
|
|
|
virtual void log_crash_recover() = 0;
|
|
};
|
|
|
|
extern nonstd::optional<FILE*> lnav_log_file;
|
|
extern const char* lnav_log_crash_dir;
|
|
extern nonstd::optional<const struct termios*> lnav_log_orig_termios;
|
|
extern enum lnav_log_level_t lnav_log_level;
|
|
|
|
#define log_msg_wrapper(level, fmt...) \
|
|
do { \
|
|
if (lnav_log_level <= level) { \
|
|
log_msg(level, __FILE__, __LINE__, fmt); \
|
|
} \
|
|
} while (false)
|
|
|
|
#define log_rusage(level, ru) log_rusage_raw(level, __FILE__, __LINE__, ru);
|
|
|
|
#define log_error(fmt...) log_msg_wrapper(lnav_log_level_t::ERROR, fmt);
|
|
|
|
#define log_warning(fmt...) log_msg_wrapper(lnav_log_level_t::WARNING, fmt);
|
|
|
|
#define log_info(fmt...) log_msg_wrapper(lnav_log_level_t::INFO, fmt);
|
|
|
|
#define log_debug(fmt...) log_msg_wrapper(lnav_log_level_t::DEBUG, fmt);
|
|
|
|
#define log_trace(fmt...) log_msg_wrapper(lnav_log_level_t::TRACE, fmt);
|
|
|
|
#define require(e) ((void) ((e) ? 0 : lnav_require(#e, __FILE__, __LINE__)))
|
|
#define lnav_require(e, file, line) \
|
|
(log_msg( \
|
|
lnav_log_level_t::ERROR, file, line, "failed precondition `%s'", e), \
|
|
log_abort(), \
|
|
1)
|
|
|
|
#define require_true(lhs) \
|
|
((void) ((lhs) ? 0 : lnav_require_unary(#lhs, lhs, __FILE__, __LINE__)))
|
|
#define require_false(lhs) \
|
|
((void) ((!lhs) ? 0 : lnav_require_unary(#lhs, lhs, __FILE__, __LINE__)))
|
|
#define lnav_require_unary(e, lhs, file, line) \
|
|
(log_msg(lnav_log_level_t::ERROR, \
|
|
file, \
|
|
line, \
|
|
"failed precondition `%s' (lhs=%s)", \
|
|
e, \
|
|
std::to_string(lhs).c_str()), \
|
|
log_abort(), \
|
|
1)
|
|
|
|
#define require_ge(lhs, rhs) \
|
|
((void) ((lhs >= rhs) \
|
|
? 0 \
|
|
: lnav_require_binary( \
|
|
#lhs " >= " #rhs, lhs, rhs, __FILE__, __LINE__)))
|
|
#define require_gt(lhs, rhs) \
|
|
((void) ((lhs > rhs) ? 0 \
|
|
: lnav_require_binary( \
|
|
#lhs " > " #rhs, lhs, rhs, __FILE__, __LINE__)))
|
|
#define require_lt(lhs, rhs) \
|
|
((void) ((lhs < rhs) ? 0 \
|
|
: lnav_require_binary( \
|
|
#lhs " < " #rhs, lhs, rhs, __FILE__, __LINE__)))
|
|
|
|
#define lnav_require_binary(e, lhs, rhs, file, line) \
|
|
(log_msg(lnav_log_level_t::ERROR, \
|
|
file, \
|
|
line, \
|
|
"failed precondition `%s' (lhs=%s; rhs=%s)", \
|
|
e, \
|
|
std::to_string(lhs).c_str(), \
|
|
std::to_string(rhs).c_str()), \
|
|
log_abort(), \
|
|
1)
|
|
|
|
#define ensure(e) ((void) ((e) ? 0 : lnav_ensure(#e, __FILE__, __LINE__)))
|
|
#define lnav_ensure(e, file, line) \
|
|
(log_msg( \
|
|
lnav_log_level_t::ERROR, file, line, "failed postcondition `%s'", e), \
|
|
log_abort(), \
|
|
1)
|
|
|
|
#define log_perror(e) \
|
|
((void) ((e != -1) ? 0 : lnav_log_perror(#e, __FILE__, __LINE__)))
|
|
#define lnav_log_perror(e, file, line) \
|
|
(log_msg(lnav_log_level_t::ERROR, \
|
|
file, \
|
|
line, \
|
|
"syscall failed `%s' -- %s", \
|
|
e, \
|
|
strerror(errno)), \
|
|
1)
|
|
|
|
#endif
|