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#ifndef LIGHTNING_LIGHTNINGD_LOG_H
#define LIGHTNING_LIGHTNINGD_LOG_H
#include "config.h"
#include <ccan/tal/tal.h>
#include <ccan/time/time.h>
#include <ccan/typesafe_cb/typesafe_cb.h>
#include <common/status.h>
#include <common/type_to_string.h>
#include <jsmn.h>
#include <stdarg.h>
struct command;
struct json_stream;
struct lightningd;
struct timerel;
/* We can have a single log book, with multiple logs in it: it's freed by
* the last struct log itself. */
struct log_book *new_log_book(size_t max_mem,
enum log_level printlevel);
/* With different entry points */
struct log *new_log(const tal_t *ctx, struct log_book *record, const char *fmt, ...) PRINTF_FMT(3,4);
#define log_debug(log, ...) log_((log), LOG_DBG, __VA_ARGS__)
#define log_info(log, ...) log_((log), LOG_INFORM, __VA_ARGS__)
#define log_unusual(log, ...) log_((log), LOG_UNUSUAL, __VA_ARGS__)
#define log_broken(log, ...) log_((log), LOG_BROKEN, __VA_ARGS__)
void log_io(struct log *log, enum log_level dir, const char *comment,
const void *data, size_t len);
void log_(struct log *log, enum log_level level, const char *fmt, ...)
PRINTF_FMT(3,4);
void log_add(struct log *log, const char *fmt, ...) PRINTF_FMT(2,3);
void logv(struct log *log, enum log_level level, const char *fmt, va_list ap);
void logv_add(struct log *log, const char *fmt, va_list ap);
enum log_level get_log_level(struct log_book *lr);
void set_log_level(struct log_book *lr, enum log_level level);
void set_log_prefix(struct log *log, const char *prefix);
const char *log_prefix(const struct log *log);
struct log_book *get_log_book(const struct log *log);
#define set_log_outfn(lr, print, arg) \
set_log_outfn_((lr), \
typesafe_cb_preargs(void, void *, (print), (arg),\
const char *, \
enum log_level, \
bool, \
const struct timeabs *, \
const char *, \
const u8 *), (arg))
/* If level == LOG_IO_IN/LOG_IO_OUT, then io contains data */
void set_log_outfn_(struct log_book *lr,
void (*print)(const char *prefix,
enum log_level level,
bool continued,
const struct timeabs *time,
const char *str,
const u8 *io,
void *arg),
void *arg);
size_t log_max_mem(const struct log_book *lr);
size_t log_used(const struct log_book *lr);
const struct timeabs *log_init_time(const struct log_book *lr);
#define log_each_line(lr, func, arg) \
log_each_line_((lr), \
typesafe_cb_preargs(void, void *, (func), (arg), \
unsigned int, \
struct timerel, \
enum log_level, \
const char *, \
const char *, \
const u8 *), (arg))
void log_each_line_(const struct log_book *lr,
void (*func)(unsigned int skipped,
struct timerel time,
enum log_level level,
const char *prefix,
const char *log,
const u8 *io,
void *arg),
void *arg);
void opt_register_logging(struct lightningd *ld);
char *arg_log_to_file(const char *arg, struct lightningd *ld);
/* Once this is set, we dump fatal with a backtrace to this log */
extern struct log *crashlog;
void NORETURN PRINTF_FMT(1,2) fatal(const char *fmt, ...);
void log_backtrace_print(const char *fmt, ...);
void log_backtrace_exit(void);
/* Adds an array showing log entries */
void json_add_log(struct json_stream *result,
const struct log_book *lr, enum log_level minlevel);
struct command_result *param_loglevel(struct command *cmd,
const char *name,
const char *buffer,
const jsmntok_t *tok,
enum log_level **level);
#endif /* LIGHTNING_LIGHTNINGD_LOG_H */