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Simplify logging tags

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This was roop's initial idea, and it turns out to be the better one, now
that we can pass cstrings more easily.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld
2018-12-14 22:53:42 +01:00
parent c4263da231
commit e0bc5e12b3
6 changed files with 31 additions and 22 deletions
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WireGuard/Shared/Logging/ringlogger.c
+6 -3
View File
@@ -19,7 +19,7 @@
enum {
MAX_LOG_LINE_LENGTH = 512,
MAX_LINES = 1024,
MAGIC = 0xdeadbeefU
MAGIC = 0xbeefbabeU
};
struct log_line {
@@ -59,7 +59,7 @@ static bool first_before_second(const struct log_line *line1, const struct log_l
return false;
}
int write_logs_to_file(const char *file_name, const struct log *log1, const struct log *log2)
int write_logs_to_file(const char *file_name, const struct log *log1, const char *tag1, const struct log *log2, const char *tag2)
{
uint32_t i1, i2, len1 = log1->header.len, len2 = log2->header.len;
char buf[MAX_LOG_LINE_LENGTH];
@@ -78,19 +78,22 @@ int write_logs_to_file(const char *file_name, const struct log *log1, const stru
const struct log_line *line1 = &log1->lines[(log1->header.first + i1) % MAX_LINES];
const struct log_line *line2 = &log2->lines[(log2->header.first + i2) % MAX_LINES];
const struct log_line *line;
const char *tag;
if (i1 < len1 && (i2 >= len2 || first_before_second(line1, line2))) {
line = line1;
tag = tag1;
++i1;
} else if (i2 < len2 && (i1 >= len1 || first_before_second(line2, line1))) {
line = line2;
tag = tag2;
++i2;
} else {
break;
}
memcpy(buf, line->line, MAX_LOG_LINE_LENGTH);
buf[MAX_LOG_LINE_LENGTH - 1] = '\0';
if (fprintf(file, "%lu.%06d: %s\n", line->tv.tv_sec, line->tv.tv_usec, buf) < 0) {
if (fprintf(file, "%lu.%06d: [%s] %s\n", line->tv.tv_sec, line->tv.tv_usec, tag, buf) < 0) {
int ret = -errno;
fclose(file);
return ret;