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log: separate levels for IO directions, allow msg + io data. 

We currently don't handle LOG_IO properly, and we turn it into a string
before handing it to the ->print function, which makes it ugly for
the case where we're using copy_to_parent_log, and also means in
that case we lose *what peer* the IO is coming from.

Now, we handle the io as a separate arg, which is much neater.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
ppa-0.6.1
Rusty Russell 7 years ago
parent
4856ca5db0
commit
b7acd93578
8 changed files with 87 additions and 73 deletions
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  1. 6
      common/status.c
  2. 2
      common/status.h
  3. 3
      common/status_levels.h
  4. 5
      lightningd/jsonrpc.c
  5. 118
      lightningd/log.c
  6. 15
      lightningd/log.h
  7. 6
      lightningd/log_status.c
  8. 5
      lightningd/peer_control.c

6
common/status.c
View File

@ -75,13 +75,13 @@ static void status_send_with_hdr(u16 type, const void *p, size_t len)
}
}
void status_io(enum side sender, const u8 *p)
void status_io(enum log_level iodir, const u8 *p)
{
u16 type = STATUS_LOG_MIN + LOG_IO;
u16 type = STATUS_LOG_MIN + iodir;
u8 *msg = tal_arr(NULL, u8, 0);
assert(iodir == LOG_IO_IN || iodir == LOG_IO_OUT);
towire_u16(&msg, type);
towire_bool(&msg, sender == REMOTE);
towire(&msg, p, tal_len(p));
if (too_large(tal_len(msg), type))
tal_resize(&msg, 65535);

2
common/status.h
View File

@ -27,7 +27,7 @@ void status_fmt(enum log_level level, const char *fmt, ...)
/* vprintf-style */
void status_vfmt(enum log_level level, const char *fmt, va_list ap);
void status_io(enum side sender, const u8 *msg);
void status_io(enum log_level iodir, const u8 *p);
/* Helpers */
#define status_debug(...) \

3
common/status_levels.h
View File

@ -4,7 +4,8 @@
enum log_level {
/* Logging all IO. */
LOG_IO,
LOG_IO_OUT,
LOG_IO_IN,
/* Gory details which are mainly good for debugging. */
LOG_DBG,
/* Information about what's going in. */

5
lightningd/jsonrpc.c
View File

@ -634,7 +634,7 @@ static struct io_plan *write_json(struct io_conn *conn,
jcon->outbuf = tal_steal(jcon, out->json);
tal_free(out);
log_io(jcon->log, false, jcon->outbuf, strlen(jcon->outbuf));
log_io(jcon->log, LOG_IO_OUT, "", jcon->outbuf, strlen(jcon->outbuf));
return io_write(conn,
jcon->outbuf, strlen(jcon->outbuf), write_json, jcon);
}
@ -645,7 +645,8 @@ static struct io_plan *read_json(struct io_conn *conn,
jsmntok_t *toks;
bool valid;
log_io(jcon->log, true, jcon->buffer + jcon->used, jcon->len_read);
log_io(jcon->log, LOG_IO_IN, "",
jcon->buffer + jcon->used, jcon->len_read);
/* Resize larger if we're full. */
jcon->used += jcon->len_read;

118
lightningd/log.c
View File

@ -29,6 +29,8 @@ struct log_entry {
unsigned int skipped;
const char *prefix;
char *log;
/* Iff LOG_IO */
const u8 *io;
};
struct log_book {
@ -38,7 +40,7 @@ struct log_book {
enum log_level level,
bool continued,
const struct timeabs *time,
const char *str, void *arg);
const char *str, const u8 *io, void *arg);
void *print_arg;
enum log_level print_level;
struct timeabs init_time;
@ -56,13 +58,21 @@ static void log_to_file(const char *prefix,
bool continued,
const struct timeabs *time,
const char *str,
const u8 *io,
FILE *logf)
{
char iso8601_msec_fmt[sizeof("YYYY-mm-ddTHH:MM:SS.%03dZ")];
strftime(iso8601_msec_fmt, sizeof(iso8601_msec_fmt), "%FT%T.%%03dZ", gmtime(&time->ts.tv_sec));
char iso8601_s[sizeof("YYYY-mm-ddTHH:MM:SS.nnnZ")];
snprintf(iso8601_s, sizeof(iso8601_s), iso8601_msec_fmt, (int) time->ts.tv_nsec / 1000000);
if (!continued) {
if (level == LOG_IO_IN || level == LOG_IO_OUT) {
const char *dir = level == LOG_IO_IN ? "[IN]" : "[OUT]";
char *hex = tal_hex(NULL, io);
fprintf(logf, "%s %s%s%s %s\n",
iso8601_s, prefix, str, dir, hex);
tal_free(hex);
} else if (!continued) {
fprintf(logf, "%s %s %s\n", iso8601_s, prefix, str);
} else {
fprintf(logf, "%s %s \t%s\n", iso8601_s, prefix, str);
@ -74,17 +84,15 @@ static void log_to_stdout(const char *prefix,
enum log_level level,
bool continued,
const struct timeabs *time,
const char *str, void *unused UNUSED)
const char *str,
const u8 *io, void *unused UNUSED)
{
log_to_file(prefix, level, continued, time, str, stdout);
log_to_file(prefix, level, continued, time, str, io, stdout);
}
static size_t log_bufsize(const struct log_entry *e)
static size_t mem_used(const struct log_entry *e)
{
if (e->level == LOG_IO)
return tal_count(e->log);
else
return strlen(e->log) + 1;
return sizeof(*e) + strlen(e->log) + 1 + tal_len(e->io);
}
static size_t prune_log(struct log_book *log)
@ -96,7 +104,7 @@ static size_t prune_log(struct log_book *log)
tail = list_tail(&log->log, struct log_entry, list);
list_for_each_safe(&log->log, i, next, list) {
/* 50% chance of deleting debug, 25% inform, 12.5% unusual. */
/* 50% chance of deleting IO_IN, 25% IO_OUT, 12.5% DEBUG... */
if (i == tail || !pseudorand(2 << i->level)) {
i->skipped += skipped;
skipped = 0;
@ -104,7 +112,7 @@ static size_t prune_log(struct log_book *log)
}
list_del_from(&log->log, &i->list);
log->mem_used -= sizeof(*i) + log_bufsize(i);
log->mem_used -= mem_used(i);
tal_free(i);
skipped++;
deleted++;
@ -174,7 +182,7 @@ void set_log_outfn_(struct log_book *lr,
enum log_level level,
bool continued,
const struct timeabs *time,
const char *str, void *arg),
const char *str, const u8 *io, void *arg),
void *arg)
{
lr->print = print;
@ -203,7 +211,7 @@ const struct timeabs *log_init_time(const struct log_book *lr)
static void add_entry(struct log *log, struct log_entry *l)
{
log->lr->mem_used += sizeof(*l) + log_bufsize(l);
log->lr->mem_used += mem_used(l);
list_add_tail(&log->lr->log, &l->list);
if (log->lr->mem_used > log->lr->max_mem) {
@ -228,44 +236,45 @@ static struct log_entry *new_log_entry(struct log *log, enum log_level level)
l->level = level;
l->skipped = 0;
l->prefix = log->prefix;
l->io = NULL;
return l;
}
static void maybe_print(const struct log *log, const struct log_entry *l,
size_t offset)
{
if (l->level >= log->lr->print_level)
log->lr->print(log->prefix, l->level, offset != 0,
&l->time, l->log + offset,
l->io, log->lr->print_arg);
}
void logv(struct log *log, enum log_level level, const char *fmt, va_list ap)
{
int save_errno = errno;
struct log_entry *l = new_log_entry(log, level);
l->log = tal_vfmt(l, fmt, ap);
if (level >= log->lr->print_level)
log->lr->print(log->prefix, level, false, &l->time, l->log,
log->lr->print_arg);
maybe_print(log, l, 0);
add_entry(log, l);
errno = save_errno;
}
void log_io(struct log *log, bool in, const void *data, size_t len)
void log_io(struct log *log, enum log_level dir,
const char *str TAKES,
const void *data TAKES, size_t len)
{
int save_errno = errno;
struct log_entry *l = new_log_entry(log, LOG_IO);
l->log = tal_arr(l, char, 1 + len);
l->log[0] = in;
memcpy(l->log + 1, data, len);
if (LOG_IO >= log->lr->print_level) {
const char *dir = in ? "[IN]" : "[OUT]";
char *hex = tal_arr(l, char, strlen(dir) + hex_str_size(len));
strcpy(hex, dir);
hex_encode(data, len, hex + strlen(dir), hex_str_size(len));
log->lr->print(log->prefix, LOG_IO, false, &l->time, l->log,
log->lr->print_arg);
tal_free(hex);
}
struct log_entry *l = new_log_entry(log, dir);
assert(dir == LOG_IO_IN || dir == LOG_IO_OUT);
l->log = tal_strdup(l, str);
l->io = tal_dup_arr(l, u8, data, len, 0);
maybe_print(log, l, 0);
add_entry(log, l);
errno = save_errno;
}
@ -276,15 +285,13 @@ void logv_add(struct log *log, const char *fmt, va_list ap)
size_t oldlen = strlen(l->log);
/* Remove from list, so it doesn't get pruned. */
log->lr->mem_used -= sizeof(*l) + oldlen + 1;
log->lr->mem_used -= mem_used(l);
list_del_from(&log->lr->log, &l->list);
tal_append_vfmt(&l->log, fmt, ap);
add_entry(log, l);
if (l->level >= log->lr->print_level)
log->lr->print(log->prefix, l->level, true, &l->time, l->log + oldlen,
log->lr->print_arg);
maybe_print(log, l, oldlen);
}
void log_(struct log *log, enum log_level level, const char *fmt, ...)
@ -311,6 +318,7 @@ void log_each_line_(const struct log_book *lr,
enum log_level level,
const char *prefix,
const char *log,
const u8 *io,
void *arg),
void *arg)
{
@ -318,7 +326,7 @@ void log_each_line_(const struct log_book *lr,
list_for_each(&lr->log, i, list) {
func(i->skipped, time_between(i->time, lr->init_time),
i->level, i->prefix, i->log, arg);
i->level, i->prefix, i->log, i->io, arg);
}
}
@ -332,6 +340,7 @@ static void log_one_line(unsigned int skipped,
enum log_level level,
const char *prefix,
const char *log,
const u8 *io,
struct log_data *data)
{
char buf[101];
@ -347,7 +356,8 @@ static void log_one_line(unsigned int skipped,
(unsigned long)diff.ts.tv_sec,
(unsigned)diff.ts.tv_nsec,
prefix,
level == LOG_IO ? (log[0] ? "IO-IN" : "IO-OUT")
level == LOG_IO_IN ? "IO_IN"
: level == LOG_IO_OUT ? "IO_OUT"
: level == LOG_DBG ? "DEBUG"
: level == LOG_INFORM ? "INFO"
: level == LOG_UNUSUAL ? "UNUSUAL"
@ -355,19 +365,18 @@ static void log_one_line(unsigned int skipped,
: "**INVALID**");
write_all(data->fd, buf, strlen(buf));
if (level == LOG_IO) {
size_t off, used, len = tal_count(log)-1;
write_all(data->fd, log, strlen(log));
if (level == LOG_IO_IN || level == LOG_IO_OUT) {
size_t off, used, len = tal_count(io);
/* No allocations, may be in signal handler. */
for (off = 0; off < len; off += used) {
used = len - off;
if (hex_str_size(used) > sizeof(buf))
used = hex_data_size(sizeof(buf));
hex_encode(log + 1 + off, used, buf, hex_str_size(used));
hex_encode(io + off, used, buf, hex_str_size(used));
write_all(data->fd, buf, strlen(buf));
}
} else {
write_all(data->fd, log, strlen(log));
}
data->prefix = "\n";
@ -377,7 +386,7 @@ static struct {
const char *name;
enum log_level level;
} log_levels[] = {
{ "IO", LOG_IO },
{ "IO", LOG_IO_OUT },
{ "DEBUG", LOG_DBG },
{ "INFO", LOG_INFORM },
{ "UNUSUAL", LOG_UNUSUAL },
@ -599,6 +608,7 @@ static void log_to_json(unsigned int skipped,
enum log_level level,
const char *prefix,
const char *log,
const u8 *io,
struct log_info *info)
{
info->num_skipped += skipped;
@ -616,20 +626,14 @@ static void log_to_json(unsigned int skipped,
: level == LOG_UNUSUAL ? "UNUSUAL"
: level == LOG_INFORM ? "INFO"
: level == LOG_DBG ? "DEBUG"
: level == LOG_IO ? "IO"
: level == LOG_IO_IN ? "IO_IN"
: level == LOG_IO_OUT ? "IO_OUT"
: "UNKNOWN");
json_add_time(info->response, "time", diff.ts);
json_add_string(info->response, "source", prefix);
if (level == LOG_IO) {
assert(tal_count(log) > 0);
if (log[0])
json_add_string(info->response, "direction", "IN");
else
json_add_string(info->response, "direction", "OUT");
json_add_hex(info->response, "data", log+1, tal_count(log)-1);
} else
json_add_string(info->response, "log", log);
json_add_string(info->response, "log", log);
if (io)
json_add_hex(info->response, "data", io, tal_count(io));
json_object_end(info->response);
}
@ -664,7 +668,7 @@ static void json_getlog(struct command *cmd,
if (!level)
minlevel = LOG_INFORM;
else if (json_tok_streq(buffer, level, "io"))
minlevel = LOG_IO;
minlevel = LOG_IO_OUT;
else if (json_tok_streq(buffer, level, "debug"))
minlevel = LOG_DBG;
else if (json_tok_streq(buffer, level, "info"))

15
lightningd/log.h
View File

@ -25,7 +25,8 @@ struct log *new_log(const tal_t *ctx, struct log_book *record, const char *fmt,
#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_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);
@ -44,14 +45,18 @@ const char *log_prefix(const struct log *log);
enum log_level, \
bool, \
const struct timeabs *, \
const char *), (arg))
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, void *arg),
const char *str,
const u8 *io,
void *arg),
void *arg);
size_t log_max_mem(const struct log_book *lr);
@ -65,7 +70,8 @@ const struct timeabs *log_init_time(const struct log_book *lr);
struct timerel, \
enum log_level, \
const char *, \
const char *), (arg))
const char *, \
const u8 *), (arg))
void log_each_line_(const struct log_book *lr,
void (*func)(unsigned int skipped,
@ -73,6 +79,7 @@ void log_each_line_(const struct log_book *lr,
enum log_level level,
const char *prefix,
const char *log,
const u8 *io,
void *arg),
void *arg);

6
lightningd/log_status.c
View File

@ -11,10 +11,8 @@ bool log_status_msg(struct log *log, const u8 *msg)
return false;
level = type - STATUS_LOG_MIN;
if (level == LOG_IO) {
/* First byte is direction */
bool dir = fromwire_bool(&msg, &max);
log_io(log, dir, msg, max);
if (level == LOG_IO_IN || level == LOG_IO_OUT) {
log_io(log, level, "", msg, max);
} else {
int i;
/* Truncate if unprintable */

5
lightningd/peer_control.c
View File

@ -699,9 +699,12 @@ static void copy_to_parent_log(const char *prefix,
bool continued,
const struct timeabs *time,
const char *str,
const u8 *io,
struct peer *peer)
{
if (continued)
if (level == LOG_IO_IN || level == LOG_IO_OUT)
log_io(peer->ld->log, level, prefix, io, tal_len(io));
else if (continued)
log_add(peer->ld->log, "%s ... %s", prefix, str);
else
log_(peer->ld->log, level, "%s %s", prefix, str);

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