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Merge pull request #33386 from yuwata/journal-timestamp
journal: fix _SOURCE_MONOTONIC_TIMESTAMP field
This commit is contained in:
commit
07748c53df
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@ -253,9 +253,17 @@ void dev_kmsg_record(Server *s, char *p, size_t l) {
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}
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}
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char source_time[STRLEN("_SOURCE_MONOTONIC_TIMESTAMP=") + DECIMAL_STR_MAX(unsigned long long)];
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xsprintf(source_time, "_SOURCE_MONOTONIC_TIMESTAMP=%llu", usec);
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iovec[n++] = IOVEC_MAKE_STRING(source_time);
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char source_boot_time[STRLEN("_SOURCE_BOOTTIME_TIMESTAMP=") + DECIMAL_STR_MAX(unsigned long long)];
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xsprintf(source_boot_time, "_SOURCE_BOOTTIME_TIMESTAMP=%llu", usec);
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iovec[n++] = IOVEC_MAKE_STRING(source_boot_time);
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/* Historically, we stored the timestamp 'usec' as _SOURCE_MONOTONIC_TIMESTAMP, so we cannot remove
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* the field as it is already used in other projects. So, let's store the correct timestamp here by
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* mapping the boottime to monotonic. Then, the existence of _SOURCE_BOOTTIME_TIMESTAMP indicates
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* the reliability of _SOURCE_MONOTONIC_TIMESTAMP field. */
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char source_monotonic_time[STRLEN("_SOURCE_MONOTONIC_TIMESTAMP=") + DECIMAL_STR_MAX(unsigned long long)];
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xsprintf(source_monotonic_time, "_SOURCE_MONOTONIC_TIMESTAMP="USEC_FMT, map_clock_usec(usec, CLOCK_BOOTTIME, CLOCK_MONOTONIC));
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iovec[n++] = IOVEC_MAKE_STRING(source_monotonic_time);
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iovec[n++] = IOVEC_MAKE_STRING("_TRANSPORT=kernel");
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@ -44,9 +44,9 @@ typedef enum ObjectType {
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/* Object flags (note that src/basic/compress.h uses the same values for the compression types) */
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enum {
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OBJECT_COMPRESSED_XZ = 1 << 0,
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OBJECT_COMPRESSED_LZ4 = 1 << 1,
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OBJECT_COMPRESSED_ZSTD = 1 << 2,
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OBJECT_COMPRESSED_XZ = 1 << 0,
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OBJECT_COMPRESSED_LZ4 = 1 << 1,
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OBJECT_COMPRESSED_ZSTD = 1 << 2,
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_OBJECT_COMPRESSED_MASK = OBJECT_COMPRESSED_XZ | OBJECT_COMPRESSED_LZ4 | OBJECT_COMPRESSED_ZSTD,
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};
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@ -443,6 +443,7 @@ static void parse_display_realtime(
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sd_journal *j,
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const char *source_realtime,
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const char *source_monotonic,
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const char *source_boottime,
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usec_t *ret) {
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usec_t t, s, u;
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@ -450,6 +451,11 @@ static void parse_display_realtime(
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assert(j);
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assert(ret);
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if (!source_boottime)
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/* _SOURCE_MONOTONIC_TIMESTAMP field is usable only when _SOURCE_BOOTTIME_TIMESTAMP exists,
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* as previously the timestamp was in CLOCK_BOOTTIME. */
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source_monotonic = NULL;
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/* First, try _SOURCE_REALTIME_TIMESTAMP. */
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if (source_realtime && safe_atou64(source_realtime, &t) >= 0 && VALID_REALTIME(t)) {
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*ret = t;
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@ -477,6 +483,7 @@ static void parse_display_timestamp(
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sd_journal *j,
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const char *source_realtime,
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const char *source_monotonic,
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const char *source_boottime,
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dual_timestamp *ret_display_ts,
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sd_id128_t *ret_boot_id) {
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@ -488,6 +495,11 @@ static void parse_display_timestamp(
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assert(ret_display_ts);
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assert(ret_boot_id);
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if (!source_boottime)
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/* _SOURCE_MONOTONIC_TIMESTAMP field is usable only when _SOURCE_BOOTTIME_TIMESTAMP exists,
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* as previously the timestamp was in CLOCK_BOOTTIME. */
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source_monotonic = NULL;
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if (source_realtime && safe_atou64(source_realtime, &t) >= 0 && VALID_REALTIME(t))
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source_ts.realtime = t;
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@ -527,7 +539,7 @@ static int output_short(
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_cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL,
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*message = NULL, *priority = NULL, *transport = NULL,
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*config_file = NULL, *unit = NULL, *user_unit = NULL, *documentation_url = NULL,
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*realtime = NULL, *monotonic = NULL;
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*realtime = NULL, *monotonic = NULL, *boottime = NULL;
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size_t hostname_len = 0, identifier_len = 0, comm_len = 0, pid_len = 0, fake_pid_len = 0, message_len = 0,
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priority_len = 0, transport_len = 0, config_file_len = 0,
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unit_len = 0, user_unit_len = 0, documentation_url_len = 0;
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@ -550,6 +562,7 @@ static int output_short(
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PARSE_FIELD_VEC_ENTRY("DOCUMENTATION=", &documentation_url, &documentation_url_len),
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PARSE_FIELD_VEC_ENTRY("_SOURCE_REALTIME_TIMESTAMP=", &realtime, NULL ),
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PARSE_FIELD_VEC_ENTRY("_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, NULL ),
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PARSE_FIELD_VEC_ENTRY("_SOURCE_BOOTTIME_TIMESTAMP=", &boottime, NULL ),
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};
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size_t highlight_shifted[] = {highlight ? highlight[0] : 0, highlight ? highlight[1] : 0};
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@ -596,11 +609,11 @@ static int output_short(
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audit = streq_ptr(transport, "audit");
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if (IN_SET(mode, OUTPUT_SHORT_MONOTONIC, OUTPUT_SHORT_DELTA)) {
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parse_display_timestamp(j, realtime, monotonic, &display_ts, &boot_id);
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parse_display_timestamp(j, realtime, monotonic, boottime, &display_ts, &boot_id);
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r = output_timestamp_monotonic(f, mode, &display_ts, &boot_id, previous_display_ts, previous_boot_id);
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} else {
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usec_t usec;
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parse_display_realtime(j, realtime, monotonic, &usec);
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parse_display_realtime(j, realtime, monotonic, boottime, &usec);
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r = output_timestamp_realtime(f, j, mode, flags, usec);
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}
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if (r < 0)
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@ -733,11 +746,12 @@ static int output_short(
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static int get_display_realtime(sd_journal *j, usec_t *ret) {
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const void *data;
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_cleanup_free_ char *realtime = NULL, *monotonic = NULL;
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_cleanup_free_ char *realtime = NULL, *monotonic = NULL, *boottime = NULL;
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size_t length;
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const ParseFieldVec message_fields[] = {
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PARSE_FIELD_VEC_ENTRY("_SOURCE_REALTIME_TIMESTAMP=", &realtime, NULL),
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PARSE_FIELD_VEC_ENTRY("_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, NULL),
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PARSE_FIELD_VEC_ENTRY("_SOURCE_BOOTTIME_TIMESTAMP=", &boottime, NULL),
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};
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int r;
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@ -749,13 +763,13 @@ static int get_display_realtime(sd_journal *j, usec_t *ret) {
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if (r < 0)
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return r;
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if (realtime && monotonic)
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if (realtime && monotonic && boottime)
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break;
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}
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if (r < 0)
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return r;
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(void) parse_display_realtime(j, realtime, monotonic, ret);
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(void) parse_display_realtime(j, realtime, monotonic, boottime, ret);
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/* Restart all data before */
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sd_journal_restart_data(j);
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