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135 lines
4.7 KiB
135 lines
4.7 KiB
#ifndef LIGHTNING_DAEMON_LOG_H
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#define LIGHTNING_DAEMON_LOG_H
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#include "config.h"
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#include "type_to_string.h"
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#include <ccan/tal/tal.h>
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#include <ccan/typesafe_cb/typesafe_cb.h>
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#include <stdarg.h>
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struct timerel;
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struct lightningd_state;
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enum log_level {
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/* Logging all IO. */
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LOG_IO,
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/* Gory details which are mainly good for debugging. */
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LOG_DBG,
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/* Information about what's going in. */
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LOG_INFORM,
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/* That's strange... */
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LOG_UNUSUAL,
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/* That's really bad, we're broken. */
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LOG_BROKEN
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};
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/* We can have a single log book, with multiple logs in it. */
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struct log_book *new_log_book(const tal_t *ctx,
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size_t max_mem,
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enum log_level printlevel);
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/* With different entry points */
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struct log *PRINTF_FMT(3,4)
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new_log(const tal_t *ctx, struct log_book *record, const char *fmt, ...);
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#define log_debug(log, ...) log_((log), LOG_DBG, __VA_ARGS__)
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#define log_info(log, ...) log_((log), LOG_INFORM, __VA_ARGS__)
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#define log_unusual(log, ...) log_((log), LOG_UNUSUAL, __VA_ARGS__)
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#define log_broken(log, ...) log_((log), LOG_BROKEN, __VA_ARGS__)
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void log_io(struct log *log, bool in, const void *data, size_t len);
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void log_(struct log *log, enum log_level level, const char *fmt, ...)
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PRINTF_FMT(3,4);
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void log_add(struct log *log, const char *fmt, ...) PRINTF_FMT(2,3);
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void logv(struct log *log, enum log_level level, const char *fmt, va_list ap);
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void logv_add(struct log *log, const char *fmt, va_list ap);
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void log_blob_(struct log *log, int level, const char *fmt,
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size_t len, ...)
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PRINTF_FMT(3,5);
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/* These must have %s where the blob is to go. */
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#define log_add_blob(log, fmt, blob, len) \
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log_blob_((log), -1, (fmt), (len), (char *)(blob))
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#define log_debug_blob(log, fmt, blob, len) \
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log_blob_((log), LOG_DBG, (fmt), (len), (char *)(blob))
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#define log_info_blob(log, fmt, blob, len) \
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log_blob_((log), LOG_INFORM, (fmt), (len), (char *)(blob))
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#define log_unusual_blob(log, fmt, blob, len) \
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log_blob_((log), LOG_UNUSUAL, (fmt), (len), (char *)(blob))
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#define log_broken_blob(log, fmt, blob, len) \
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log_blob_((log), LOG_BROKEN, (fmt), (len), (char *)(blob))
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/* Makes sure ptr is a 'structtype', makes sure it's in printable_types. */
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#define log_struct_check_(log, loglevel, fmt, structtype, ptr) \
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log_struct_((log), (loglevel), stringify(structtype), (fmt), \
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((void)sizeof((ptr) == (structtype *)NULL), \
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((union printable_types)((const structtype *)ptr)).charp_))
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/* These must have %s where the struct is to go. */
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#define log_add_struct(log, fmt, structtype, ptr) \
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log_struct_check_((log), -1, (fmt), structtype, (ptr))
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#define log_debug_struct(log, fmt, structtype, ptr) \
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log_struct_check_((log), LOG_DBG, (fmt), structtype, (ptr))
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#define log_info_struct(log, fmt, structtype, ptr) \
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log_struct_check_((log), LOG_INFORM, (fmt), structtype, (ptr))
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#define log_unusual_struct(log, fmt, structtype, ptr) \
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log_struct_check_((log), LOG_UNUSUAL, (fmt), structtype, (ptr))
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#define log_broken_struct(log, fmt, structtype, ptr) \
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log_struct_check_((log), LOG_BROKEN, (fmt), structtype, (ptr))
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void PRINTF_FMT(4,5) log_struct_(struct log *log, int level,
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const char *structname,
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const char *fmt, ...);
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enum log_level get_log_level(struct log_book *lr);
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void set_log_level(struct log_book *lr, enum log_level level);
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void set_log_prefix(struct log *log, const char *prefix);
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const char *log_prefix(const struct log *log);
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#define set_log_outfn(lr, print, arg) \
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set_log_outfn_((lr), \
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typesafe_cb_preargs(void, void *, (print), (arg),\
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const char *, \
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enum log_level, \
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bool, \
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const char *), (arg))
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void set_log_outfn_(struct log_book *lr,
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void (*print)(const char *prefix,
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enum log_level level,
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bool continued,
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const char *str, void *arg),
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void *arg);
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size_t log_max_mem(const struct log_book *lr);
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size_t log_used(const struct log_book *lr);
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const struct timeabs *log_init_time(const struct log_book *lr);
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#define log_each_line(lr, func, arg) \
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log_each_line_((lr), \
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typesafe_cb_preargs(void, void *, (func), (arg), \
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unsigned int, \
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struct timerel, \
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enum log_level, \
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const char *, \
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const char *), (arg))
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void log_each_line_(const struct log_book *lr,
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void (*func)(unsigned int skipped,
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struct timerel time,
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enum log_level level,
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const char *prefix,
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const char *log,
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void *arg),
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void *arg);
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void log_dump_to_file(int fd, const struct log_book *lr);
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void opt_register_logging(struct log *log);
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void crashlog_activate(struct log *log);
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/* Before the crashlog is activated, just prints to stderr. */
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void NORETURN PRINTF_FMT(1,2) fatal(const char *fmt, ...);
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#endif /* LIGHTNING_DAEMON_LOG_H */
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