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r15749@catbus: nickm | 2007-10-13 20:06:06 -0400
Remove support for long-obsolete bw_accounting file. svn:r11917
This commit is contained in:
Nick Mathewson
parent
39902e93f7
commit
1b45314775
@ -6,6 +6,13 @@ Changes in version 0.2.0.9-alpha - 2007-10-??
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it. Extra descriptors without any real changes are dropped by the
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authorities, and can screw up our "publish every 18 hours" schedule.
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o Code simplifications and refactoring:
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- Remove support for the old bw_accounting file: we've been storing
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bandwidth accounting information in the state file since 0.1.2.5-alpha.
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This may result in bandwidth accounting errors if you try to upgrade
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from 0.1.1.x or earlier, or if you try to downgrade to 0.1.1.x or
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earlier.
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Changes in version 0.2.0.8-alpha - 2007-10-12
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o Major features (router descriptor cache):
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@ -553,49 +553,7 @@ accounting_set_wakeup_time(void)
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int
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accounting_record_bandwidth_usage(time_t now, or_state_t *state)
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{
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char buf[128];
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char fname[512];
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char time1[ISO_TIME_LEN+1];
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char time2[ISO_TIME_LEN+1];
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char *cp = buf;
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time_t tmp;
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int r = 0;
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uint64_t expected;
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static time_t last_recorded = 0;
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/* First, update bw_accounting. Until 0.1.2.5-alpha, this was the only place
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* we stored this information. The format is:
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* Version\nTime\nTime\nRead\nWrite\nSeconds\nExpected-Rate\n */
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format_iso_time(time1, interval_start_time);
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format_iso_time(time2, now);
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/* now check to see if they're valid times -- if they're not,
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* and we write them, then tor will refuse to start next time. */
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if (parse_iso_time(time1, &tmp) || parse_iso_time(time2, &tmp)) {
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log_warn(LD_ACCT, "Created a time that we refused to parse.");
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return -1;
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}
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expected = expected_bandwidth_usage;
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/* Cap this value, since older versions won't parse a uint64_t here. */
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if (expected > UINT32_MAX)
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expected = UINT32_MAX;
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tor_snprintf(cp, sizeof(buf),
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"%d\n%s\n%s\n"U64_FORMAT"\n"U64_FORMAT"\n%lu\n%lu\n",
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BW_ACCOUNTING_VERSION,
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time1,
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time2,
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U64_PRINTF_ARG(ROUND_UP(n_bytes_read_in_interval)),
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U64_PRINTF_ARG(ROUND_UP(n_bytes_written_in_interval)),
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(unsigned long)n_seconds_active_in_interval,
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(unsigned long)expected);
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tor_snprintf(fname, sizeof(fname), "%s"PATH_SEPARATOR"bw_accounting",
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get_options()->DataDirectory);
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if (!get_options()->AvoidDiskWrites || (last_recorded + 3600 < now)) {
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r = write_str_to_file(fname, buf, 0);
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last_recorded = now;
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}
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/* Now update the state */
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/* Just update the state */
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state->AccountingIntervalStart = interval_start_time;
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state->AccountingBytesReadInInterval = ROUND_UP(n_bytes_read_in_interval);
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state->AccountingBytesWrittenInInterval =
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@ -606,7 +564,7 @@ accounting_record_bandwidth_usage(time_t now, or_state_t *state)
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or_state_mark_dirty(state,
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now+(get_options()->AvoidDiskWrites ? 7200 : 60));
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return r;
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return 0;
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}
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#undef ROUND_UP
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@ -615,44 +573,18 @@ accounting_record_bandwidth_usage(time_t now, or_state_t *state)
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static int
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read_bandwidth_usage(void)
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{
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char *s = NULL;
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char fname[512];
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time_t t1, t2;
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uint64_t n_read, n_written;
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uint32_t expected_bw, n_seconds;
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smartlist_t *elts = NULL;
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int ok, use_state=0, r=-1;
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or_state_t *state = get_or_state();
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{
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char fname[512];
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tor_snprintf(fname, sizeof(fname), "%s/bw_accounting",
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get_options()->DataDirectory);
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elts = smartlist_create();
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if ((s = read_file_to_str(fname, 0, NULL)) == NULL) {
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/* We have an old-format bw_accounting file. */
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use_state = 1;
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unlink(fname);
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}
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if (!use_state) {
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smartlist_split_string(elts, s, "\n",
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SPLIT_SKIP_SPACE|SPLIT_IGNORE_BLANK,0);
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tor_free(s);
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if (smartlist_len(elts)<1 ||
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atoi(smartlist_get(elts,0)) != BW_ACCOUNTING_VERSION) {
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log_warn(LD_ACCT, "Unrecognized bw_accounting file version: %s",
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(const char*)smartlist_get(elts,0));
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use_state = 1;
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}
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}
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if (!use_state && smartlist_len(elts) < 7) {
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log_warn(LD_ACCT, "Corrupted bw_accounting file: %d lines",
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smartlist_len(elts));
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use_state = 1;
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}
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if (!use_state && parse_iso_time(smartlist_get(elts,2), &t2)) {
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log_warn(LD_ACCT, "Error parsing bandwidth usage last-written time");
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use_state = 1;
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}
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if (use_state || t2 <= state->LastWritten) {
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if (!state)
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return 0;
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/* Okay; it looks like the state file is more up-to-date than the
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* bw_accounting file, or the bw_accounting file is nonexistant,
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* or the bw_accounting file is corrupt.
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@ -663,68 +595,27 @@ read_bandwidth_usage(void)
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n_seconds_active_in_interval = state->AccountingSecondsActive;
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interval_start_time = state->AccountingIntervalStart;
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expected_bandwidth_usage = state->AccountingExpectedUsage;
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r = 0;
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goto done;
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}
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if (parse_iso_time(smartlist_get(elts,1), &t1)) {
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log_warn(LD_ACCT, "Error parsing bandwidth usage start time.");
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goto done;
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}
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n_read = tor_parse_uint64(smartlist_get(elts,3), 10, 0, UINT64_MAX,
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&ok, NULL);
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if (!ok) {
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log_warn(LD_ACCT, "Error parsing number of bytes read");
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goto done;
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}
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n_written = tor_parse_uint64(smartlist_get(elts,4), 10, 0, UINT64_MAX,
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&ok, NULL);
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if (!ok) {
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log_warn(LD_ACCT, "Error parsing number of bytes written");
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goto done;
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}
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n_seconds = (uint32_t)tor_parse_ulong(smartlist_get(elts,5), 10,0,ULONG_MAX,
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&ok, NULL);
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if (!ok) {
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log_warn(LD_ACCT, "Error parsing number of seconds live");
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goto done;
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}
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expected_bw =(uint32_t)tor_parse_ulong(smartlist_get(elts,6), 10,0,ULONG_MAX,
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&ok, NULL);
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if (!ok) {
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log_warn(LD_ACCT, "Error parsing expected bandwidth");
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goto done;
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}
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/* XXXX020 do something if the interval "starts" far in the future?
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* or do we alrady handle that. */
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n_bytes_read_in_interval = n_read;
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n_bytes_written_in_interval = n_written;
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n_seconds_active_in_interval = n_seconds;
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interval_start_time = t1;
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expected_bandwidth_usage = expected_bw;
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{
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char tbuf1[ISO_TIME_LEN+1];
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char tbuf2[ISO_TIME_LEN+1];
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format_iso_time(tbuf1, state->LastWritten);
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format_iso_time(tbuf2, state->AccountingIntervalStart);
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log_info(LD_ACCT,
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"Successfully read bandwidth accounting file written at %s "
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"Successfully read bandwidth accounting info from state written at %s "
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"for interval starting at %s. We have been active for %lu seconds in "
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"this interval. At the start of the interval, we expected to use "
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"about %lu KB per second. ("U64_FORMAT" bytes read so far, "
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U64_FORMAT" bytes written so far)",
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(char*)smartlist_get(elts,2),
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(char*)smartlist_get(elts,1),
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tbuf1, tbuf2,
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(unsigned long)n_seconds_active_in_interval,
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(unsigned long)(expected_bandwidth_usage*1024/60),
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U64_PRINTF_ARG(n_bytes_read_in_interval),
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U64_PRINTF_ARG(n_bytes_written_in_interval));
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r = 0;
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done:
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if (elts) {
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SMARTLIST_FOREACH(elts, char *, cp, tor_free(cp));
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smartlist_free(elts);
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}
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return r;
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return 0;
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}
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/** Return true iff we have sent/received all the bytes we are willing
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