forked from lei.chen/myxce
Rongsong Shen
ee30765d31
Add ctrlstatus_fmt.h (ctrlstatus_format_time_ms): renders responder_time_ms as local YYYY-MM-DD HH:MM:SS,mmm, byte-equivalent to the controller log prefix (tlog/my_tlog_format) so a captured ctrlstatus lines up against ctrl-N.log. cmd_ctrlstatus prints a responderTime line; TZ-pinned exact-string unit test. Req 11.2, 11.3. ctrlstatus group passes. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
#ifndef _CTRLSTATUS_FMT_H_
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#define _CTRLSTATUS_FMT_H_
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/* ctrlstatus_fmt.h — render a responder snapshot timestamp (epoch-millis) in
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* the EXACT wall-clock string the controller logger emits, so the test client's
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* `ctrlstatus` output is byte-comparable against ctrl-N.log (controller-status
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* task 6.3, Req 11.2/11.3).
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*
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* The tlog prefix (vendored tinylog, _tlog_root_default_format) is built inline
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* as:
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*
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* snprintf(... "[%.4d-%.2d-%.2d %.2d:%.2d:%.2d,%.3d]...",
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* tm->year, tm->mon, tm->mday, tm->hour, tm->min, tm->sec,
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* tm->usec / 1000, ...);
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*
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* where the broken-down time comes from gettimeofday() + localtime_r() — i.e.
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* LOCAL time, with sub-second precision rendered as zero-padded MILLISECONDS
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* (usec / 1000). tlog exposes no reusable formatter for callers, so this helper
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* REPLICATES that construction: localtime_r + strftime("%Y-%m-%d %H:%M:%S")
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* (byte-identical to "%.4d-%.2d-%.2d %.2d:%.2d:%.2d") then ",%03u" for the
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* millisecond fraction. Both the logger and this helper use local time, so the
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* rendered value matches the log line under the same TZ. */
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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/* Render `ms` (epoch milliseconds, e.g. xce_ctrlstatus_t.responder_time_ms)
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* into `buf` as local-time "YYYY-MM-DD HH:MM:SS,mmm". Needs at least 24 bytes.
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* Returns `buf` on success, NULL if buf is NULL / too small / time conversion
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* fails. */
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static inline char* ctrlstatus_format_time_ms(uint64_t ms, char* buf, size_t n)
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{
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/* "YYYY-MM-DD HH:MM:SS,mmm" + NUL == 24 bytes. */
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if (buf == NULL || n < 24) {
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return NULL;
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}
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time_t secs = (time_t)(ms / 1000u);
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unsigned msec = (unsigned)(ms % 1000u);
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struct tm tm;
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if (localtime_r(&secs, &tm) == NULL) {
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return NULL;
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}
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char datetime[20]; /* "YYYY-MM-DD HH:MM:SS" + NUL */
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if (strftime(datetime, sizeof(datetime), "%Y-%m-%d %H:%M:%S", &tm) == 0) {
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return NULL;
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}
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/* Match tlog's ",%.3d" millisecond fraction (zero-padded to 3 digits). */
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if (snprintf(buf, n, "%s,%03u", datetime, msec) < 0) {
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return NULL;
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}
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return buf;
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}
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#endif /* _CTRLSTATUS_FMT_H_ */
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