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#ifndef LIGHTNING_DAEMON_LOG_H
#define LIGHTNING_DAEMON_LOG_H
#include "config.h"
#include <ccan/tal/tal.h>
#include <ccan/typesafe_cb/typesafe_cb.h>
#include <stdarg.h>
struct timerel;
enum log_level {
/* Logging all IO. */
LOG_IO,
/* Gory details which are mainly good for debugging. */
LOG_DBG,
/* Information about what's going in. */
LOG_INFORM,
/* That's strange... */
LOG_UNUSUAL,
/* That's really bad, we're broken. */
LOG_BROKEN
};
/* We have a single record. */
struct log_record *new_log_record(const tal_t *ctx,
size_t max_mem,
enum log_level printlevel);
/* With different entry points */
struct log *PRINTF_FMT(3,4)
new_log(const tal_t *ctx, struct log_record *record, const char *fmt, ...);
#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, bool in, 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);
/* Makes sure ptr is a 'structtype', makes sure it's in loggable_structs. */
#define log_struct_check_(log, loglevel, fmt, structtype, ptr) \
log_struct_((log), (loglevel), stringify(structtype), (fmt), \
((void)sizeof((ptr) == (structtype *)NULL), \
((union loggable_structs)(ptr)).charp_))
/* These must have %s where the struct is to go. */
#define log_add_struct(log, fmt, structtype, ptr) \
log_struct_check_((log), -1, (fmt), structtype, (ptr))
#define log_debug_struct(log, fmt, structtype, ptr) \
log_struct_check_((log), LOG_DBG, (fmt), structtype, (ptr))
#define log_info_struct(log, fmt, structtype, ptr) \
log_struct_check_((log), LOG_INFORM, (fmt), structtype, (ptr))
#define log_unusual_struct(log, fmt, structtype, ptr) \
log_struct_check_((log), LOG_UNUSUAL, (fmt), structtype, (ptr))
#define log_broken_struct(log, fmt, structtype, ptr) \
log_struct_check_((log), LOG_BROKEN, (fmt), structtype, (ptr))
/* This must match the log_add_struct_ definitions. */
union loggable_structs {
/* Yech, need both const and non-const versions. */
const struct pubkey *const_pubkey;
struct pubkey *pubkey;
const struct sha256_double *const_sha256_double;
struct sha256_double *sha256_double;
const struct sha256 *const_sha256;
struct sha256 *sha256;
const struct rel_locktime *const_rel_locktime;
struct rel_locktime *rel_locktime;
const struct abs_locktime *const_abs_locktime;
struct abs_locktime *abs_locktime;
const struct bitcoin_tx *const_bitcoin_tx;
struct bitcoin_tx *bitcoin_tx;
const char *charp_;
};
void PRINTF_FMT(4,5) log_struct_(struct log *log, int level,
const char *structname,
const char *fmt, ...);
void set_log_level(struct log_record *lr, enum log_level level);
void set_log_prefix(struct log *log, const char *prefix);
const char *log_prefix(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 char *), (arg))
void set_log_outfn_(struct log_record *lr,
void (*print)(const char *prefix,
enum log_level level,
bool continued,
const char *str, void *arg),
void *arg);
size_t log_max_mem(const struct log_record *lr);
size_t log_used(const struct log_record *lr);
const struct timeabs *log_init_time(const struct log_record *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 *), (arg))
void log_each_line_(const struct log_record *lr,
void (*func)(unsigned int skipped,
struct timerel time,
enum log_level level,
const char *prefix,
const char *log,
void *arg),
void *arg);
void log_dump_to_file(int fd, const struct log_record *lr);
void opt_register_logging(struct log *log);
void crashlog_activate(struct log *log);
/* Before the crashlog is activated, just prints to stderr. */
void NORETURN PRINTF_FMT(1,2) fatal(const char *fmt, ...);
#endif /* LIGHTNING_DAEMON_LOG_H */