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b86f44cbd0
GCC 7.1 produces an error: ‘snprintf’ output between 47 and 66 bytes into a destination of size 40 BUG: https://bugzilla.samba.org/show_bug.cgi?id=12930 Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org> Autobuild-User(master): Ralph Böhme <slow@samba.org> Autobuild-Date(master): Wed Aug 9 13:37:47 CEST 2017 on sn-devel-144
364 lines
9.4 KiB
C
364 lines
9.4 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* status reporting
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* Copyright (C) Andrew Tridgell 1994-1998
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* Copyright (C) James Peach 2005-2006
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "smbprofile.h"
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#include "status_profile.h"
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static void profile_separator(const char * title)
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{
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char line[79 + 1];
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char * end;
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snprintf(line, sizeof(line), "**** %s ", title);
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for (end = line + strlen(line); end < &line[sizeof(line) -1]; ++end) {
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*end = '*';
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}
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line[sizeof(line) - 1] = '\0';
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d_printf("%s\n", line);
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}
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/*******************************************************************
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dump the elements of the profile structure
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******************************************************************/
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bool status_profile_dump(bool verbose)
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{
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struct profile_stats stats = {};
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if (!profile_setup(NULL, True)) {
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fprintf(stderr,"Failed to initialise profile memory\n");
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return False;
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}
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smbprofile_collect(&stats);
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#define __PRINT_FIELD_LINE(name, _stats, field) do { \
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d_printf("%-59s%20ju\n", \
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name "_" #field ":", \
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(uintmax_t)stats.values._stats.field); \
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} while(0);
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#define SMBPROFILE_STATS_START
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#define SMBPROFILE_STATS_SECTION_START(name, display) profile_separator(#display);
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#define SMBPROFILE_STATS_COUNT(name) do { \
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__PRINT_FIELD_LINE(#name, name##_stats, count); \
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} while(0);
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#define SMBPROFILE_STATS_TIME(name) do { \
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__PRINT_FIELD_LINE(#name, name##_stats, time); \
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} while(0);
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#define SMBPROFILE_STATS_BASIC(name) do { \
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__PRINT_FIELD_LINE(#name, name##_stats, count); \
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__PRINT_FIELD_LINE(#name, name##_stats, time); \
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} while(0);
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#define SMBPROFILE_STATS_BYTES(name) do { \
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__PRINT_FIELD_LINE(#name, name##_stats, count); \
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__PRINT_FIELD_LINE(#name, name##_stats, time); \
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__PRINT_FIELD_LINE(#name, name##_stats, idle); \
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__PRINT_FIELD_LINE(#name, name##_stats, bytes); \
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} while(0);
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#define SMBPROFILE_STATS_IOBYTES(name) do { \
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__PRINT_FIELD_LINE(#name, name##_stats, count); \
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__PRINT_FIELD_LINE(#name, name##_stats, time); \
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__PRINT_FIELD_LINE(#name, name##_stats, idle); \
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__PRINT_FIELD_LINE(#name, name##_stats, inbytes); \
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__PRINT_FIELD_LINE(#name, name##_stats, outbytes); \
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} while(0);
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#define SMBPROFILE_STATS_SECTION_END
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#define SMBPROFILE_STATS_END
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SMBPROFILE_STATS_ALL_SECTIONS
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#undef __PRINT_FIELD_LINE
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#undef SMBPROFILE_STATS_START
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#undef SMBPROFILE_STATS_SECTION_START
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#undef SMBPROFILE_STATS_COUNT
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#undef SMBPROFILE_STATS_TIME
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#undef SMBPROFILE_STATS_BASIC
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#undef SMBPROFILE_STATS_BYTES
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#undef SMBPROFILE_STATS_IOBYTES
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#undef SMBPROFILE_STATS_SECTION_END
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#undef SMBPROFILE_STATS_END
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return True;
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}
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/* Convert microseconds to milliseconds. */
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#define usec_to_msec(s) ((s) / 1000)
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/* Convert microseconds to seconds. */
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#define usec_to_sec(s) ((s) / 1000000)
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/* One second in microseconds. */
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#define one_second_usec (1000000)
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#define sample_interval_usec one_second_usec
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#define percent_time(used, period) ((double)(used) / (double)(period) * 100.0 )
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static uint64_t print_count_count_samples(
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char *buf, const size_t buflen,
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const char *name,
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const struct smbprofile_stats_count * const current,
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const struct smbprofile_stats_count * const last,
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uint64_t delta_usec)
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{
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uint64_t step = current->count - last->count;
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uint64_t count = 0;
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if (step != 0) {
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uint64_t delta_sec = usec_to_sec(delta_usec);
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count++;
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if (buf[0] == '\0') {
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snprintf(buf, buflen,
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"%-40s %ju/sec",
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name, (uintmax_t)(step / delta_sec));
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} else {
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printf("%-40s %s %ju/sec\n",
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buf, name, (uintmax_t)(step / delta_sec));
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buf[0] = '\0';
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}
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}
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return count;
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}
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static uint64_t print_basic_count_samples(
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char *buf, const size_t buflen,
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const char *name,
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const struct smbprofile_stats_basic * const current,
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const struct smbprofile_stats_basic * const last,
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uint64_t delta_usec)
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{
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uint64_t step = current->count - last->count;
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uint64_t spent = current->time - last->time;
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uint64_t count = 0;
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if (step != 0) {
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uint64_t delta_sec = usec_to_sec(delta_usec);
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count++;
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if (buf[0] == '\0') {
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snprintf(buf, buflen,
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"%s %ju/sec (%.2f%%)",
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name, (uintmax_t)(step / delta_sec),
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percent_time(spent, delta_usec));
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} else {
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printf("%-40s %s %ju/sec (%.2f%%)\n",
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buf, name, (uintmax_t)(step / delta_sec),
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percent_time(spent, delta_usec));
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buf[0] = '\0';
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}
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}
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return count;
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}
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static uint64_t print_bytes_count_samples(
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char *buf, const size_t buflen,
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const char *name,
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const struct smbprofile_stats_bytes * const current,
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const struct smbprofile_stats_bytes * const last,
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uint64_t delta_usec)
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{
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uint64_t step = current->count - last->count;
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uint64_t spent = current->time - last->time;
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uint64_t count = 0;
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if (step != 0) {
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uint64_t delta_sec = usec_to_sec(delta_usec);
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count++;
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if (buf[0] == '\0') {
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snprintf(buf, buflen,
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"%s %ju/sec (%.2f%%)",
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name, (uintmax_t)(step / delta_sec),
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percent_time(spent, delta_usec));
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} else {
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printf("%-40s %s %ju/sec (%.2f%%)\n",
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buf, name, (uintmax_t)(step / delta_sec),
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percent_time(spent, delta_usec));
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buf[0] = '\0';
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}
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}
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return count;
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}
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static uint64_t print_iobytes_count_samples(
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char *buf, const size_t buflen,
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const char *name,
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const struct smbprofile_stats_iobytes * const current,
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const struct smbprofile_stats_iobytes * const last,
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uint64_t delta_usec)
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{
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uint64_t step = current->count - last->count;
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uint64_t spent = current->time - last->time;
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uint64_t count = 0;
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if (step != 0) {
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uint64_t delta_sec = usec_to_sec(delta_usec);
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count++;
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if (buf[0] == '\0') {
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snprintf(buf, buflen,
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"%s %ju/sec (%.2f%%)",
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name, (uintmax_t)(step / delta_sec),
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percent_time(spent, delta_usec));
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} else {
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printf("%-40s %s %ju/sec (%.2f%%)\n",
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buf, name, (uintmax_t)(step / delta_sec),
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percent_time(spent, delta_usec));
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buf[0] = '\0';
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}
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}
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return count;
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}
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static uint64_t print_count_samples(
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const struct profile_stats * const current,
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const struct profile_stats * const last,
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uint64_t delta_usec)
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{
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uint64_t count = 0;
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char buf[60] = { '\0', };
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if (delta_usec == 0) {
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return 0;
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}
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#define SMBPROFILE_STATS_START
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#define SMBPROFILE_STATS_SECTION_START(name, display)
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#define SMBPROFILE_STATS_COUNT(name) do { \
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count += print_count_count_samples(buf, sizeof(buf), \
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#name, \
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¤t->values.name##_stats, \
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&last->values.name##_stats, \
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delta_usec); \
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} while(0);
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#define SMBPROFILE_STATS_TIME(name) do { \
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} while(0);
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#define SMBPROFILE_STATS_BASIC(name) do { \
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count += print_basic_count_samples(buf, sizeof(buf), \
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#name, \
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¤t->values.name##_stats, \
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&last->values.name##_stats, \
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delta_usec); \
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} while(0);
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#define SMBPROFILE_STATS_BYTES(name) do { \
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count += print_bytes_count_samples(buf, sizeof(buf), \
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#name, \
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¤t->values.name##_stats, \
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&last->values.name##_stats, \
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delta_usec); \
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} while(0);
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#define SMBPROFILE_STATS_IOBYTES(name) do { \
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count += print_iobytes_count_samples(buf, sizeof(buf), \
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#name, \
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¤t->values.name##_stats, \
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&last->values.name##_stats, \
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delta_usec); \
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} while(0);
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#define SMBPROFILE_STATS_SECTION_END
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#define SMBPROFILE_STATS_END
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SMBPROFILE_STATS_ALL_SECTIONS
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#undef SMBPROFILE_STATS_START
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#undef SMBPROFILE_STATS_SECTION_START
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#undef SMBPROFILE_STATS_COUNT
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#undef SMBPROFILE_STATS_TIME
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#undef SMBPROFILE_STATS_BASIC
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#undef SMBPROFILE_STATS_BYTES
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#undef SMBPROFILE_STATS_IOBYTES
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#undef SMBPROFILE_STATS_SECTION_END
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#undef SMBPROFILE_STATS_END
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if (buf[0] != '\0') {
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printf("%-40s\n", buf);
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buf[0] = '\0';
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}
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return count;
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}
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static struct profile_stats sample_data[2];
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static uint64_t sample_time[2];
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bool status_profile_rates(bool verbose)
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{
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uint64_t remain_usec;
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uint64_t next_usec;
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uint64_t delta_usec;
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int last = 0;
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int current = 1;
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int tmp;
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if (verbose) {
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fprintf(stderr, "Sampling stats at %d sec intervals\n",
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usec_to_sec(sample_interval_usec));
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}
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if (!profile_setup(NULL, True)) {
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fprintf(stderr,"Failed to initialise profile memory\n");
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return False;
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}
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smbprofile_collect(&sample_data[last]);
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for (;;) {
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sample_time[current] = profile_timestamp();
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next_usec = sample_time[current] + sample_interval_usec;
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/* Take a sample. */
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smbprofile_collect(&sample_data[current]);
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/* Rate convert some values and print results. */
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delta_usec = sample_time[current] - sample_time[last];
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if (print_count_samples(&sample_data[current],
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&sample_data[last], delta_usec)) {
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printf("\n");
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}
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/* Swap sampling buffers. */
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tmp = last;
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last = current;
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current = tmp;
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/* Delay until next sample time. */
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remain_usec = next_usec - profile_timestamp();
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if (remain_usec > sample_interval_usec) {
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fprintf(stderr, "eek! falling behind sampling rate!\n");
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} else {
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if (verbose) {
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fprintf(stderr,
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"delaying for %lu msec\n",
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(unsigned long )usec_to_msec(remain_usec));
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}
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usleep(remain_usec);
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}
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}
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return True;
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}
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