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haproxy/contrib/halog/halog.c
Willy Tarreau 7cf479cc09 MEDIUM: halog: add support for counting per source address (-ic) 
This is the same as -uc except that instead of counting URLs, it
counts source addresses. The reported times are request times and
not response times.

The code becomes heavily ugly, the url struct is being abused to
store an address, and there are no more bit fields available. The
code needs a major revamp.
2013-02-16 23:49:04 +01:00

1615 lines
43 KiB
C
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/*
* haproxy log statistics reporter
*
* Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <syslog.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include <eb32tree.h>
#include <eb64tree.h>
#include <ebistree.h>
#include <ebsttree.h>
#define SOURCE_FIELD 5
#define ACCEPT_FIELD 6
#define SERVER_FIELD 8
#define TIME_FIELD 9
#define STATUS_FIELD 10
#define BYTES_SENT_FIELD 11
#define TERM_CODES_FIELD 14
#define CONN_FIELD 15
#define QUEUE_LEN_FIELD 16
#define METH_FIELD 17
#define URL_FIELD 18
#define MAXLINE 16384
#define QBITS 4
#define SEP(c) ((unsigned char)(c) <= ' ')
#define SKIP_CHAR(p,c) do { while (1) { int __c = (unsigned char)*p++; if (__c == c) break; if (__c <= ' ') { p--; break; } } } while (0)
/* [0] = err/date, [1] = req, [2] = conn, [3] = resp, [4] = data */
static struct eb_root timers[5] = {
EB_ROOT_UNIQUE, EB_ROOT_UNIQUE, EB_ROOT_UNIQUE,
EB_ROOT_UNIQUE, EB_ROOT_UNIQUE,
};
struct timer {
struct eb32_node node;
unsigned int count;
};
struct srv_st {
unsigned int st_cnt[6]; /* 0xx to 5xx */
unsigned int nb_ct, nb_rt, nb_ok;
unsigned long long cum_ct, cum_rt;
struct ebmb_node node;
/* don't put anything else here, the server name will be there */
};
struct url_stat {
union {
struct ebpt_node url;
struct eb64_node val;
} node;
char *url;
unsigned long long total_time; /* sum(all reqs' times) */
unsigned long long total_time_ok; /* sum(all OK reqs' times) */
unsigned long long total_bytes_sent; /* sum(all bytes sent) */
unsigned int nb_err, nb_req;
};
#define FILT_COUNT_ONLY 0x01
#define FILT_INVERT 0x02
#define FILT_QUIET 0x04
#define FILT_ERRORS_ONLY 0x08
#define FILT_ACC_DELAY 0x10
#define FILT_ACC_COUNT 0x20
#define FILT_GRAPH_TIMERS 0x40
#define FILT_PERCENTILE 0x80
#define FILT_TIME_RESP 0x100
#define FILT_INVERT_ERRORS 0x200
#define FILT_INVERT_TIME_RESP 0x400
#define FILT_COUNT_STATUS 0x800
#define FILT_COUNT_SRV_STATUS 0x1000
#define FILT_COUNT_TERM_CODES 0x2000
#define FILT_COUNT_URL_ONLY 0x004000
#define FILT_COUNT_URL_COUNT 0x008000
#define FILT_COUNT_URL_ERR 0x010000
#define FILT_COUNT_URL_TTOT 0x020000
#define FILT_COUNT_URL_TAVG 0x040000
#define FILT_COUNT_URL_TTOTO 0x080000
#define FILT_COUNT_URL_TAVGO 0x100000
#define FILT_HTTP_ONLY 0x200000
#define FILT_TERM_CODE_NAME 0x400000
#define FILT_INVERT_TERM_CODE_NAME 0x800000
#define FILT_HTTP_STATUS 0x1000000
#define FILT_INVERT_HTTP_STATUS 0x2000000
#define FILT_QUEUE_ONLY 0x4000000
#define FILT_QUEUE_SRV_ONLY 0x8000000
#define FILT_COUNT_URL_BAVG 0x10000000
#define FILT_COUNT_URL_BTOT 0x20000000
#define FILT_COUNT_URL_ANY (FILT_COUNT_URL_ONLY|FILT_COUNT_URL_COUNT|FILT_COUNT_URL_ERR| \
FILT_COUNT_URL_TTOT|FILT_COUNT_URL_TAVG|FILT_COUNT_URL_TTOTO|FILT_COUNT_URL_TAVGO| \
FILT_COUNT_URL_BAVG|FILT_COUNT_URL_BTOT)
#define FILT_COUNT_COOK_CODES 0x40000000
#define FILT_COUNT_IP_COUNT 0x80000000
unsigned int filter = 0;
unsigned int filter_invert = 0;
const char *line;
int linenum = 0;
int parse_err = 0;
int lines_out = 0;
int lines_max = -1;
const char *fgets2(FILE *stream);
void filter_count_url(const char *accept_field, const char *time_field, struct timer **tptr);
void filter_count_ip(const char *source_field, const char *accept_field, const char *time_field, struct timer **tptr);
void filter_count_srv_status(const char *accept_field, const char *time_field, struct timer **tptr);
void filter_count_cook_codes(const char *accept_field, const char *time_field, struct timer **tptr);
void filter_count_term_codes(const char *accept_field, const char *time_field, struct timer **tptr);
void filter_count_status(const char *accept_field, const char *time_field, struct timer **tptr);
void filter_graphs(const char *accept_field, const char *time_field, struct timer **tptr);
void filter_output_line(const char *accept_field, const char *time_field, struct timer **tptr);
void filter_accept_holes(const char *accept_field, const char *time_field, struct timer **tptr);
void usage(FILE *output, const char *msg)
{
fprintf(output,
"%s"
"Usage: halog [-h|--help] for long help\n"
" halog [-q] [-c] [-m <lines>]\n"
" {-cc|-gt|-pct|-st|-tc|-srv|-u|-uc|-ue|-ua|-ut|-uao|-uto|-uba|-ubt|-ic}\n"
" [-s <skip>] [-e|-E] [-H] [-rt|-RT <time>] [-ad <delay>] [-ac <count>]\n"
" [-v] [-Q|-QS] [-tcn|-TCN <termcode>] [ -hs|-HS [min][:[max]] ] < log\n"
"\n",
msg ? msg : ""
);
}
void die(const char *msg)
{
usage(stderr, msg);
exit(1);
}
void help()
{
usage(stdout, NULL);
printf(
"Input filters (several filters may be combined) :\n"
" -H only match lines containing HTTP logs (ignore TCP)\n"
" -E only match lines without any error (no 5xx status)\n"
" -e only match lines with errors (status 5xx or negative)\n"
" -rt|-RT <time> only match response times larger|smaller than <time>\n"
" -Q|-QS only match queued requests (any queue|server queue)\n"
" -tcn|-TCN <code> only match requests with/without termination code <code>\n"
" -hs|-HS <[min][:][max]> only match requests with HTTP status codes within/not\n"
" within min..max. Any of them may be omitted. Exact\n"
" code is checked for if no ':' is specified.\n"
"Modifiers\n"
" -v invert the input filtering condition\n"
" -q don't report errors/warnings\n"
" -m <lines> limit output to the first <lines> lines\n"
"Output filters - only one may be used at a time\n"
" -c only report the number of lines that would have been printed\n"
" -pct output connect and response times percentiles\n"
" -st output number of requests per HTTP status code\n"
" -cc output number of requests per cookie code (2 chars)\n"
" -tc output number of requests per termination code (2 chars)\n"
" -srv output statistics per server (time, requests, errors)\n"
" -u* output statistics per URL (time, requests, errors)\n"
" Additional characters indicate the output sorting key :\n"
" -u : by URL, -uc : request count, -ue : error count\n"
" -ua : average response time, -ut : average total time\n"
" -uao, -uto: average times computed on valid ('OK') requests\n"
" -uba, -ubt: average bytes returned, total bytes returned\n"
);
exit(0);
}
/* return pointer to first char not part of current field starting at <p>. */
#if defined(__i386__)
/* this one is always faster on 32-bits */
static inline const char *field_stop(const char *p)
{
asm(
/* Look for spaces */
"4: \n\t"
"inc %0 \n\t"
"cmpb $0x20, -1(%0) \n\t"
"ja 4b \n\t"
"jz 3f \n\t"
/* we only get there for control chars 0..31. Leave if we find '\0' */
"cmpb $0x0, -1(%0) \n\t"
"jnz 4b \n\t"
/* return %0-1 = position of the last char we checked */
"3: \n\t"
"dec %0 \n\t"
: "=r" (p)
: "0" (p)
);
return p;
}
#else
const char *field_stop(const char *p)
{
unsigned char c;
while (1) {
c = *(p++);
if (c > ' ')
continue;
if (c == ' ' || c == 0)
break;
}
return p - 1;
}
#endif
/* return field <field> (starting from 1) in string <p>. Only consider
* contiguous spaces (or tabs) as one delimiter. May return pointer to
* last char if field is not found. Equivalent to awk '{print $field}'.
*/
const char *field_start(const char *p, int field)
{
#ifndef PREFER_ASM
unsigned char c;
while (1) {
/* skip spaces */
while (1) {
c = *(p++);
if (c > ' ')
break;
if (c == ' ')
continue;
if (!c) /* end of line */
return p-1;
/* other char => new field */
break;
}
/* start of field */
field--;
if (!field)
return p-1;
/* skip this field */
while (1) {
c = *(p++);
if (c == ' ')
break;
if (c > ' ')
continue;
if (c == '\0')
return p - 1;
}
}
#else
/* This version works optimally on i386 and x86_64 but the code above
* shows similar performance. However, depending on the version of GCC
* used, inlining rules change and it may have difficulties to make
* efficient use of this code at other locations and could result in
* worse performance (eg: gcc 4.4). You may want to experience.
*/
asm(
/* skip spaces */
"1: \n\t"
"inc %0 \n\t"
"cmpb $0x20, -1(%0) \n\t"
"ja 2f \n\t"
"jz 1b \n\t"
/* we only get there for control chars 0..31. Leave if we find '\0' */
"cmpb $0x0, -1(%0) \n\t"
"jz 3f \n\t"
/* start of field at [%0-1]. Check if we need to skip more fields */
"2: \n\t"
"dec %1 \n\t"
"jz 3f \n\t"
/* Look for spaces */
"4: \n\t"
"inc %0 \n\t"
"cmpb $0x20, -1(%0) \n\t"
"jz 1b \n\t"
"ja 4b \n\t"
/* we only get there for control chars 0..31. Leave if we find '\0' */
"cmpb $0x0, -1(%0) \n\t"
"jnz 4b \n\t"
/* return %0-1 = position of the last char we checked */
"3: \n\t"
"dec %0 \n\t"
: "=r" (p)
: "r" (field), "0" (p)
);
return p;
#endif
}
/* keep only the <bits> higher bits of <i> */
static inline unsigned int quantify_u32(unsigned int i, int bits)
{
int high;
if (!bits)
return 0;
if (i)
high = fls_auto(i); // 1 to 32
else
high = 0;
if (high <= bits)
return i;
return i & ~((1 << (high - bits)) - 1);
}
/* keep only the <bits> higher bits of the absolute value of <i>, as well as
* its sign. */
static inline int quantify(int i, int bits)
{
if (i >= 0)
return quantify_u32(i, bits);
else
return -quantify_u32(-i, bits);
}
/* Insert timer value <v> into tree <r>. A pre-allocated node must be passed
* in <alloc>. It may be NULL, in which case the function will allocate it
* itself. It will be reset to NULL once consumed. The caller is responsible
* for freeing the node once not used anymore. The node where the value was
* inserted is returned.
*/
struct timer *insert_timer(struct eb_root *r, struct timer **alloc, int v)
{
struct timer *t = *alloc;
struct eb32_node *n;
if (!t) {
t = calloc(sizeof(*t), 1);
if (unlikely(!t)) {
fprintf(stderr, "%s: not enough memory\n", __FUNCTION__);
exit(1);
}
}
t->node.key = quantify(v, QBITS); // keep only the higher QBITS bits
n = eb32i_insert(r, &t->node);
if (n == &t->node)
t = NULL; /* node inserted, will malloc next time */
*alloc = t;
return container_of(n, struct timer, node);
}
/* Insert value value <v> into tree <r>. A pre-allocated node must be passed
* in <alloc>. It may be NULL, in which case the function will allocate it
* itself. It will be reset to NULL once consumed. The caller is responsible
* for freeing the node once not used anymore. The node where the value was
* inserted is returned.
*/
struct timer *insert_value(struct eb_root *r, struct timer **alloc, int v)
{
struct timer *t = *alloc;
struct eb32_node *n;
if (!t) {
t = calloc(sizeof(*t), 1);
if (unlikely(!t)) {
fprintf(stderr, "%s: not enough memory\n", __FUNCTION__);
exit(1);
}
}
t->node.key = v;
n = eb32i_insert(r, &t->node);
if (n == &t->node)
t = NULL; /* node inserted, will malloc next time */
*alloc = t;
return container_of(n, struct timer, node);
}
int str2ic(const char *s)
{
int i = 0;
int j, k;
if (*s != '-') {
/* positive number */
while (1) {
j = (*s++) - '0';
k = i * 10;
if ((unsigned)j > 9)
break;
i = k + j;
}
} else {
/* negative number */
s++;
while (1) {
j = (*s++) - '0';
k = i * 10;
if ((unsigned)j > 9)
break;
i = k - j;
}
}
return i;
}
/* Equivalent to strtoul with a length. */
static inline unsigned int __strl2ui(const char *s, int len)
{
unsigned int i = 0;
while (len-- > 0) {
i = i * 10 - '0';
i += (unsigned char)*s++;
}
return i;
}
unsigned int strl2ui(const char *s, int len)
{
return __strl2ui(s, len);
}
/* Convert "[04/Dec/2008:09:49:40.555]" to an integer equivalent to the time of
* the day in milliseconds. It returns -1 for all unparsable values. The parser
* looks ugly but gcc emits far better code that way.
*/
int convert_date(const char *field)
{
unsigned int h, m, s, ms;
unsigned char c;
const char *b, *e;
h = m = s = ms = 0;
e = field;
/* skip the date */
while (1) {
c = *(e++);
if (c == ':')
break;
if (!c)
goto out_err;
}
/* hour + ':' */
b = e;
while (1) {
c = *(e++) - '0';
if (c > 9)
break;
h = h * 10 + c;
}
if (c == (unsigned char)(0 - '0'))
goto out_err;
/* minute + ':' */
b = e;
while (1) {
c = *(e++) - '0';
if (c > 9)
break;
m = m * 10 + c;
}
if (c == (unsigned char)(0 - '0'))
goto out_err;
/* second + '.' or ']' */
b = e;
while (1) {
c = *(e++) - '0';
if (c > 9)
break;
s = s * 10 + c;
}
if (c == (unsigned char)(0 - '0'))
goto out_err;
/* if there's a '.', we have milliseconds */
if (c == (unsigned char)('.' - '0')) {
/* millisecond second + ']' */
b = e;
while (1) {
c = *(e++) - '0';
if (c > 9)
break;
ms = ms * 10 + c;
}
if (c == (unsigned char)(0 - '0'))
goto out_err;
}
return (((h * 60) + m) * 60 + s) * 1000 + ms;
out_err:
return -1;
}
void truncated_line(int linenum, const char *line)
{
if (!(filter & FILT_QUIET))
fprintf(stderr, "Truncated line %d: %s\n", linenum, line);
}
int main(int argc, char **argv)
{
const char *b, *e, *p, *time_field, *accept_field, *source_field;
const char *filter_term_code_name = NULL;
const char *output_file = NULL;
int f, last, err;
struct timer *t = NULL;
struct eb32_node *n;
struct url_stat *ustat = NULL;
int val, test;
int filter_acc_delay = 0, filter_acc_count = 0;
int filter_time_resp = 0;
int filt_http_status_low = 0, filt_http_status_high = 0;
int skip_fields = 1;
void (*line_filter)(const char *accept_field, const char *time_field, struct timer **tptr) = NULL;
argc--; argv++;
while (argc > 0) {
if (*argv[0] != '-')
break;
if (strcmp(argv[0], "-ad") == 0) {
if (argc < 2) die("missing option for -ad");
argc--; argv++;
filter |= FILT_ACC_DELAY;
filter_acc_delay = atol(*argv);
}
else if (strcmp(argv[0], "-ac") == 0) {
if (argc < 2) die("missing option for -ac");
argc--; argv++;
filter |= FILT_ACC_COUNT;
filter_acc_count = atol(*argv);
}
else if (strcmp(argv[0], "-rt") == 0) {
if (argc < 2) die("missing option for -rt");
argc--; argv++;
filter |= FILT_TIME_RESP;
filter_time_resp = atol(*argv);
}
else if (strcmp(argv[0], "-RT") == 0) {
if (argc < 2) die("missing option for -RT");
argc--; argv++;
filter |= FILT_TIME_RESP | FILT_INVERT_TIME_RESP;
filter_time_resp = atol(*argv);
}
else if (strcmp(argv[0], "-s") == 0) {
if (argc < 2) die("missing option for -s");
argc--; argv++;
skip_fields = atol(*argv);
}
else if (strcmp(argv[0], "-m") == 0) {
if (argc < 2) die("missing option for -m");
argc--; argv++;
lines_max = atol(*argv);
}
else if (strcmp(argv[0], "-e") == 0)
filter |= FILT_ERRORS_ONLY;
else if (strcmp(argv[0], "-E") == 0)
filter |= FILT_ERRORS_ONLY | FILT_INVERT_ERRORS;
else if (strcmp(argv[0], "-H") == 0)
filter |= FILT_HTTP_ONLY;
else if (strcmp(argv[0], "-Q") == 0)
filter |= FILT_QUEUE_ONLY;
else if (strcmp(argv[0], "-QS") == 0)
filter |= FILT_QUEUE_SRV_ONLY;
else if (strcmp(argv[0], "-c") == 0)
filter |= FILT_COUNT_ONLY;
else if (strcmp(argv[0], "-q") == 0)
filter |= FILT_QUIET;
else if (strcmp(argv[0], "-v") == 0)
filter_invert = !filter_invert;
else if (strcmp(argv[0], "-gt") == 0)
filter |= FILT_GRAPH_TIMERS;
else if (strcmp(argv[0], "-pct") == 0)
filter |= FILT_PERCENTILE;
else if (strcmp(argv[0], "-st") == 0)
filter |= FILT_COUNT_STATUS;
else if (strcmp(argv[0], "-srv") == 0)
filter |= FILT_COUNT_SRV_STATUS;
else if (strcmp(argv[0], "-cc") == 0)
filter |= FILT_COUNT_COOK_CODES;
else if (strcmp(argv[0], "-tc") == 0)
filter |= FILT_COUNT_TERM_CODES;
else if (strcmp(argv[0], "-tcn") == 0) {
if (argc < 2) die("missing option for -tcn");
argc--; argv++;
filter |= FILT_TERM_CODE_NAME;
filter_term_code_name = *argv;
}
else if (strcmp(argv[0], "-TCN") == 0) {
if (argc < 2) die("missing option for -TCN");
argc--; argv++;
filter |= FILT_TERM_CODE_NAME | FILT_INVERT_TERM_CODE_NAME;
filter_term_code_name = *argv;
}
else if (strcmp(argv[0], "-hs") == 0 || strcmp(argv[0], "-HS") == 0) {
char *sep, *str;
if (argc < 2) die("missing option for -hs/-HS ([min]:[max])");
filter |= FILT_HTTP_STATUS;
if (argv[0][1] == 'H')
filter |= FILT_INVERT_HTTP_STATUS;
argc--; argv++;
str = *argv;
sep = strchr(str, ':'); /* [min]:[max] */
if (!sep)
sep = str; /* make max point to min */
else
*sep++ = 0;
filt_http_status_low = *str ? atol(str) : 0;
filt_http_status_high = *sep ? atol(sep) : 65535;
}
else if (strcmp(argv[0], "-u") == 0)
filter |= FILT_COUNT_URL_ONLY;
else if (strcmp(argv[0], "-uc") == 0)
filter |= FILT_COUNT_URL_COUNT;
else if (strcmp(argv[0], "-ue") == 0)
filter |= FILT_COUNT_URL_ERR;
else if (strcmp(argv[0], "-ua") == 0)
filter |= FILT_COUNT_URL_TAVG;
else if (strcmp(argv[0], "-ut") == 0)
filter |= FILT_COUNT_URL_TTOT;
else if (strcmp(argv[0], "-uao") == 0)
filter |= FILT_COUNT_URL_TAVGO;
else if (strcmp(argv[0], "-uto") == 0)
filter |= FILT_COUNT_URL_TTOTO;
else if (strcmp(argv[0], "-uba") == 0)
filter |= FILT_COUNT_URL_BAVG;
else if (strcmp(argv[0], "-ubt") == 0)
filter |= FILT_COUNT_URL_BTOT;
else if (strcmp(argv[0], "-ic") == 0)
filter |= FILT_COUNT_IP_COUNT;
else if (strcmp(argv[0], "-o") == 0) {
if (output_file)
die("Fatal: output file name already specified.\n");
if (argc < 2)
die("Fatal: missing output file name.\n");
output_file = argv[1];
}
else if (strcmp(argv[0], "-h") == 0 || strcmp(argv[0], "--help") == 0)
help();
argc--;
argv++;
}
if (!filter)
die("No action specified.\n");
if (filter & FILT_ACC_COUNT && !filter_acc_count)
filter_acc_count=1;
if (filter & FILT_ACC_DELAY && !filter_acc_delay)
filter_acc_delay = 1;
/* by default, all lines are printed */
line_filter = filter_output_line;
if (filter & (FILT_ACC_COUNT|FILT_ACC_DELAY))
line_filter = filter_accept_holes;
else if (filter & (FILT_GRAPH_TIMERS|FILT_PERCENTILE))
line_filter = filter_graphs;
else if (filter & FILT_COUNT_STATUS)
line_filter = filter_count_status;
else if (filter & FILT_COUNT_COOK_CODES)
line_filter = filter_count_cook_codes;
else if (filter & FILT_COUNT_TERM_CODES)
line_filter = filter_count_term_codes;
else if (filter & FILT_COUNT_SRV_STATUS)
line_filter = filter_count_srv_status;
else if (filter & FILT_COUNT_URL_ANY)
line_filter = filter_count_url;
else if (filter & FILT_COUNT_ONLY)
line_filter = NULL;
#if defined(POSIX_FADV_SEQUENTIAL)
/* around 20% performance improvement is observed on Linux with this
* on cold-cache. Surprizingly, WILLNEED is less performant. Don't
* use NOREUSE as it flushes the cache and prevents easy data
* manipulation on logs!
*/
posix_fadvise(0, 0, 0, POSIX_FADV_SEQUENTIAL);
#endif
if (!line_filter && /* FILT_COUNT_ONLY ( see above), and no input filter (see below) */
!(filter & (FILT_HTTP_ONLY|FILT_TIME_RESP|FILT_ERRORS_ONLY|FILT_HTTP_STATUS|FILT_QUEUE_ONLY|FILT_QUEUE_SRV_ONLY|FILT_TERM_CODE_NAME))) {
/* read the whole file at once first, ignore it if inverted output */
if (!filter_invert)
while ((lines_max < 0 || lines_out < lines_max) && fgets2(stdin) != NULL)
lines_out++;
goto skip_filters;
}
while ((line = fgets2(stdin)) != NULL) {
linenum++;
time_field = NULL; accept_field = NULL;
source_field = NULL;
test = 1;
/* for any line we process, we first ensure that there is a field
* looking like the accept date field (beginning with a '[').
*/
if (filter & FILT_COUNT_IP_COUNT) {
/* we need the IP first */
source_field = field_start(line, SOURCE_FIELD + skip_fields);
accept_field = field_start(source_field, ACCEPT_FIELD - SOURCE_FIELD + 1);
}
else
accept_field = field_start(line, ACCEPT_FIELD + skip_fields);
if (unlikely(*accept_field != '[')) {
parse_err++;
continue;
}
/* the day of month field is begin 01 and 31 */
if (accept_field[1] < '0' || accept_field[1] > '3') {
parse_err++;
continue;
}
if (filter & FILT_HTTP_ONLY) {
/* only report lines with at least 4 timers */
if (!time_field) {
time_field = field_start(accept_field, TIME_FIELD - ACCEPT_FIELD + 1);
if (unlikely(!*time_field)) {
truncated_line(linenum, line);
continue;
}
}
e = field_stop(time_field + 1);
/* we have field TIME_FIELD in [time_field]..[e-1] */
p = time_field;
f = 0;
while (!SEP(*p)) {
if (++f == 4)
break;
SKIP_CHAR(p, '/');
}
test &= (f >= 4);
}
if (filter & FILT_TIME_RESP) {
int tps;
/* only report lines with response times larger than filter_time_resp */
if (!time_field) {
time_field = field_start(accept_field, TIME_FIELD - ACCEPT_FIELD + 1);
if (unlikely(!*time_field)) {
truncated_line(linenum, line);
continue;
}
}
e = field_stop(time_field + 1);
/* we have field TIME_FIELD in [time_field]..[e-1], let's check only the response time */
p = time_field;
err = 0;
f = 0;
while (!SEP(*p)) {
tps = str2ic(p);
if (tps < 0) {
tps = -1;
err = 1;
}
if (++f == 4)
break;
SKIP_CHAR(p, '/');
}
if (unlikely(f < 4)) {
parse_err++;
continue;
}
test &= (tps >= filter_time_resp) ^ !!(filter & FILT_INVERT_TIME_RESP);
}
if (filter & (FILT_ERRORS_ONLY | FILT_HTTP_STATUS)) {
/* Check both error codes (-1, 5xx) and status code ranges */
if (time_field)
b = field_start(time_field, STATUS_FIELD - TIME_FIELD + 1);
else
b = field_start(accept_field, STATUS_FIELD - ACCEPT_FIELD + 1);
if (unlikely(!*b)) {
truncated_line(linenum, line);
continue;
}
val = str2ic(b);
if (filter & FILT_ERRORS_ONLY)
test &= (val < 0 || (val >= 500 && val <= 599)) ^ !!(filter & FILT_INVERT_ERRORS);
if (filter & FILT_HTTP_STATUS)
test &= (val >= filt_http_status_low && val <= filt_http_status_high) ^ !!(filter & FILT_INVERT_HTTP_STATUS);
}
if (filter & (FILT_QUEUE_ONLY|FILT_QUEUE_SRV_ONLY)) {
/* Check if the server's queue is non-nul */
if (time_field)
b = field_start(time_field, QUEUE_LEN_FIELD - TIME_FIELD + 1);
else
b = field_start(accept_field, QUEUE_LEN_FIELD - ACCEPT_FIELD + 1);
if (unlikely(!*b)) {
truncated_line(linenum, line);
continue;
}
if (*b == '0') {
if (filter & FILT_QUEUE_SRV_ONLY) {
test = 0;
}
else {
do {
b++;
if (*b == '/') {
b++;
break;
}
} while (*b);
test &= ((unsigned char)(*b - '1') < 9);
}
}
}
if (filter & FILT_TERM_CODE_NAME) {
/* only report corresponding termination code name */
if (time_field)
b = field_start(time_field, TERM_CODES_FIELD - TIME_FIELD + 1);
else
b = field_start(accept_field, TERM_CODES_FIELD - ACCEPT_FIELD + 1);
if (unlikely(!*b)) {
truncated_line(linenum, line);
continue;
}
test &= (b[0] == filter_term_code_name[0] && b[1] == filter_term_code_name[1]) ^ !!(filter & FILT_INVERT_TERM_CODE_NAME);
}
test ^= filter_invert;
if (!test)
continue;
/************** here we process inputs *******************/
if (line_filter) {
if (filter & FILT_COUNT_IP_COUNT)
filter_count_ip(source_field, accept_field, time_field, &t);
else
line_filter(accept_field, time_field, &t);
}
else
lines_out++; /* FILT_COUNT_ONLY was used, so we're just counting lines */
if (lines_max >= 0 && lines_out >= lines_max)
break;
}
skip_filters:
/*****************************************************
* Here we've finished reading all input. Depending on the
* filters, we may still have some analysis to run on the
* collected data and to output data in a new format.
*************************************************** */
if (t)
free(t);
if (filter & FILT_COUNT_ONLY) {
printf("%d\n", lines_out);
exit(0);
}
if (filter & (FILT_ACC_COUNT|FILT_ACC_DELAY)) {
/* sort and count all timers. Output will look like this :
* <accept_date> <delta_ms from previous one> <nb entries>
*/
n = eb32_first(&timers[0]);
if (n)
last = n->key;
while (n) {
unsigned int d, h, m, s, ms;
t = container_of(n, struct timer, node);
h = n->key;
d = h - last;
last = h;
if (d >= filter_acc_delay && t->count >= filter_acc_count) {
ms = h % 1000; h = h / 1000;
s = h % 60; h = h / 60;
m = h % 60; h = h / 60;
printf("%02d:%02d:%02d.%03d %d %d %d\n", h, m, s, ms, last, d, t->count);
lines_out++;
if (lines_max >= 0 && lines_out >= lines_max)
break;
}
n = eb32_next(n);
}
}
else if (filter & FILT_GRAPH_TIMERS) {
/* sort all timers */
for (f = 0; f < 5; f++) {
struct eb32_node *n;
int val;
val = 0;
n = eb32_first(&timers[f]);
while (n) {
int i;
double d;
t = container_of(n, struct timer, node);
last = n->key;
val = t->count;
i = (last < 0) ? -last : last;
i = fls_auto(i) - QBITS;
if (i > 0)
d = val / (double)(1 << i);
else
d = val;
if (d > 0.0)
printf("%d %d %f\n", f, last, d+1.0);
n = eb32_next(n);
}
}
}
else if (filter & FILT_PERCENTILE) {
/* report timers by percentile :
* <percent> <total> <max_req_time> <max_conn_time> <max_resp_time> <max_data_time>
* We don't count errs.
*/
struct eb32_node *n[5];
unsigned long cum[5];
double step;
if (!lines_out)
goto empty;
for (f = 1; f < 5; f++) {
n[f] = eb32_first(&timers[f]);
cum[f] = container_of(n[f], struct timer, node)->count;
}
for (step = 1; step <= 1000;) {
unsigned int thres = lines_out * (step / 1000.0);
printf("%3.1f %d ", step/10.0, thres);
for (f = 1; f < 5; f++) {
struct eb32_node *next;
while (cum[f] < thres) {
/* need to find other keys */
next = eb32_next(n[f]);
if (!next)
break;
n[f] = next;
cum[f] += container_of(next, struct timer, node)->count;
}
/* value still within $step % of total */
printf("%d ", n[f]->key);
}
putchar('\n');
if (step >= 100 && step < 900)
step += 50; // jump 5% by 5% between those steps.
else if (step >= 20 && step < 980)
step += 10;
else
step += 1;
}
}
else if (filter & FILT_COUNT_STATUS) {
/* output all statuses in the form of <status> <occurrences> */
n = eb32_first(&timers[0]);
while (n) {
t = container_of(n, struct timer, node);
printf("%d %d\n", n->key, t->count);
lines_out++;
if (lines_max >= 0 && lines_out >= lines_max)
break;
n = eb32_next(n);
}
}
else if (filter & FILT_COUNT_SRV_STATUS) {
struct ebmb_node *srv_node;
struct srv_st *srv;
printf("#srv_name 1xx 2xx 3xx 4xx 5xx other tot_req req_ok pct_ok avg_ct avg_rt\n");
srv_node = ebmb_first(&timers[0]);
while (srv_node) {
int tot_rq;
srv = container_of(srv_node, struct srv_st, node);
tot_rq = 0;
for (f = 0; f <= 5; f++)
tot_rq += srv->st_cnt[f];
printf("%s %d %d %d %d %d %d %d %d %.1f %d %d\n",
srv_node->key, srv->st_cnt[1], srv->st_cnt[2],
srv->st_cnt[3], srv->st_cnt[4], srv->st_cnt[5], srv->st_cnt[0],
tot_rq,
srv->nb_ok, (double)srv->nb_ok * 100.0 / (tot_rq?tot_rq:1),
(int)(srv->cum_ct / (srv->nb_ct?srv->nb_ct:1)), (int)(srv->cum_rt / (srv->nb_rt?srv->nb_rt:1)));
srv_node = ebmb_next(srv_node);
lines_out++;
if (lines_max >= 0 && lines_out >= lines_max)
break;
}
}
else if (filter & (FILT_COUNT_TERM_CODES|FILT_COUNT_COOK_CODES)) {
/* output all statuses in the form of <code> <occurrences> */
n = eb32_first(&timers[0]);
while (n) {
t = container_of(n, struct timer, node);
printf("%c%c %d\n", (n->key >> 8), (n->key) & 255, t->count);
lines_out++;
if (lines_max >= 0 && lines_out >= lines_max)
break;
n = eb32_next(n);
}
}
else if (filter & (FILT_COUNT_URL_ANY|FILT_COUNT_IP_COUNT)) {
struct eb_node *node, *next;
if (!(filter & FILT_COUNT_URL_ONLY)) {
/* we have to sort on another criterion. We'll use timers[1] for the
* destination tree.
*/
timers[1] = EB_ROOT; /* reconfigure to accept duplicates */
for (node = eb_first(&timers[0]); node; node = next) {
next = eb_next(node);
eb_delete(node);
ustat = container_of(node, struct url_stat, node.url.node);
if (filter & (FILT_COUNT_URL_COUNT|FILT_COUNT_IP_COUNT))
ustat->node.val.key = ustat->nb_req;
else if (filter & FILT_COUNT_URL_ERR)
ustat->node.val.key = ustat->nb_err;
else if (filter & FILT_COUNT_URL_TTOT)
ustat->node.val.key = ustat->total_time;
else if (filter & FILT_COUNT_URL_TAVG)
ustat->node.val.key = ustat->nb_req ? ustat->total_time / ustat->nb_req : 0;
else if (filter & FILT_COUNT_URL_TTOTO)
ustat->node.val.key = ustat->total_time_ok;
else if (filter & FILT_COUNT_URL_TAVGO)
ustat->node.val.key = (ustat->nb_req - ustat->nb_err) ? ustat->total_time_ok / (ustat->nb_req - ustat->nb_err) : 0;
else if (filter & FILT_COUNT_URL_BAVG)
ustat->node.val.key = ustat->nb_req ? ustat->total_bytes_sent / ustat->nb_req : 0;
else if (filter & FILT_COUNT_URL_BTOT)
ustat->node.val.key = ustat->total_bytes_sent;
else
ustat->node.val.key = 0;
eb64_insert(&timers[1], &ustat->node.val);
}
/* switch trees */
timers[0] = timers[1];
}
if (FILT_COUNT_IP_COUNT)
printf("#req err ttot tavg oktot okavg bavg btot src\n");
else
printf("#req err ttot tavg oktot okavg bavg btot url\n");
/* scan the tree in its reverse sorting order */
node = eb_last(&timers[0]);
while (node) {
ustat = container_of(node, struct url_stat, node.url.node);
printf("%d %d %Ld %Ld %Ld %Ld %Ld %Ld %s\n",
ustat->nb_req,
ustat->nb_err,
ustat->total_time,
ustat->nb_req ? ustat->total_time / ustat->nb_req : 0,
ustat->total_time_ok,
(ustat->nb_req - ustat->nb_err) ? ustat->total_time_ok / (ustat->nb_req - ustat->nb_err) : 0,
ustat->nb_req ? ustat->total_bytes_sent / ustat->nb_req : 0,
ustat->total_bytes_sent,
ustat->url);
node = eb_prev(node);
lines_out++;
if (lines_max >= 0 && lines_out >= lines_max)
break;
}
}
empty:
if (!(filter & FILT_QUIET))
fprintf(stderr, "%d lines in, %d lines out, %d parsing errors\n",
linenum, lines_out, parse_err);
exit(0);
}
void filter_output_line(const char *accept_field, const char *time_field, struct timer **tptr)
{
puts(line);
lines_out++;
}
void filter_accept_holes(const char *accept_field, const char *time_field, struct timer **tptr)
{
struct timer *t2;
int val;
val = convert_date(accept_field);
if (unlikely(val < 0)) {
truncated_line(linenum, line);
return;
}
t2 = insert_value(&timers[0], tptr, val);
t2->count++;
return;
}
void filter_count_status(const char *accept_field, const char *time_field, struct timer **tptr)
{
struct timer *t2;
const char *b;
int val;
if (time_field)
b = field_start(time_field, STATUS_FIELD - TIME_FIELD + 1);
else
b = field_start(accept_field, STATUS_FIELD - ACCEPT_FIELD + 1);
if (unlikely(!*b)) {
truncated_line(linenum, line);
return;
}
val = str2ic(b);
t2 = insert_value(&timers[0], tptr, val);
t2->count++;
}
void filter_count_cook_codes(const char *accept_field, const char *time_field, struct timer **tptr)
{
struct timer *t2;
const char *b;
int val;
if (time_field)
b = field_start(time_field, TERM_CODES_FIELD - TIME_FIELD + 1);
else
b = field_start(accept_field, TERM_CODES_FIELD - ACCEPT_FIELD + 1);
if (unlikely(!*b)) {
truncated_line(linenum, line);
return;
}
val = 256 * b[2] + b[3];
t2 = insert_value(&timers[0], tptr, val);
t2->count++;
}
void filter_count_term_codes(const char *accept_field, const char *time_field, struct timer **tptr)
{
struct timer *t2;
const char *b;
int val;
if (time_field)
b = field_start(time_field, TERM_CODES_FIELD - TIME_FIELD + 1);
else
b = field_start(accept_field, TERM_CODES_FIELD - ACCEPT_FIELD + 1);
if (unlikely(!*b)) {
truncated_line(linenum, line);
return;
}
val = 256 * b[0] + b[1];
t2 = insert_value(&timers[0], tptr, val);
t2->count++;
}
void filter_count_srv_status(const char *accept_field, const char *time_field, struct timer **tptr)
{
const char *b, *e, *p;
int f, err, array[5];
struct ebmb_node *srv_node;
struct srv_st *srv;
int val;
/* the server field is before the status field, so let's
* parse them in the proper order.
*/
b = field_start(accept_field, SERVER_FIELD - ACCEPT_FIELD + 1);
if (unlikely(!*b)) {
truncated_line(linenum, line);
return;
}
e = field_stop(b + 1); /* we have the server name in [b]..[e-1] */
/* the chance that a server name already exists is extremely high,
* so let's perform a normal lookup first.
*/
srv_node = ebst_lookup_len(&timers[0], b, e - b);
srv = container_of(srv_node, struct srv_st, node);
if (!srv_node) {
/* server not yet in the tree, let's create it */
srv = (void *)calloc(1, sizeof(struct srv_st) + e - b + 1);
srv_node = &srv->node;
memcpy(&srv_node->key, b, e - b);
srv_node->key[e - b] = '\0';
ebst_insert(&timers[0], srv_node);
}
/* let's collect the connect and response times */
if (!time_field) {
time_field = field_start(e, TIME_FIELD - SERVER_FIELD);
if (unlikely(!*time_field)) {
truncated_line(linenum, line);
return;
}
}
e = field_stop(time_field + 1);
/* we have field TIME_FIELD in [time_field]..[e-1] */
p = time_field;
err = 0;
f = 0;
while (!SEP(*p)) {
array[f] = str2ic(p);
if (array[f] < 0) {
array[f] = -1;
err = 1;
}
if (++f == 5)
break;
SKIP_CHAR(p, '/');
}
if (unlikely(f < 5)){
parse_err++;
return;
}
/* OK we have our timers in array[2,3] */
if (!err)
srv->nb_ok++;
if (array[2] >= 0) {
srv->cum_ct += array[2];
srv->nb_ct++;
}
if (array[3] >= 0) {
srv->cum_rt += array[3];
srv->nb_rt++;
}
/* we're interested in the 5 HTTP status classes (1xx ... 5xx), and
* the invalid ones which will be reported as 0.
*/
b = field_start(e, STATUS_FIELD - TIME_FIELD);
if (unlikely(!*b)) {
truncated_line(linenum, line);
return;
}
val = 0;
if (*b >= '1' && *b <= '5')
val = *b - '0';
srv->st_cnt[val]++;
}
void filter_count_url(const char *accept_field, const char *time_field, struct timer **tptr)
{
struct url_stat *ustat = NULL;
struct ebpt_node *ebpt_old;
const char *b, *e;
int f, err, array[5];
int val;
/* let's collect the response time */
if (!time_field) {
time_field = field_start(accept_field, TIME_FIELD - ACCEPT_FIELD + 1); // avg 115 ns per line
if (unlikely(!*time_field)) {
truncated_line(linenum, line);
return;
}
}
/* we have the field TIME_FIELD starting at <time_field>. We'll
* parse the 5 timers to detect errors, it takes avg 55 ns per line.
*/
e = time_field; err = 0; f = 0;
while (!SEP(*e)) {
array[f] = str2ic(e);
if (array[f] < 0) {
array[f] = -1;
err = 1;
}
if (++f == 5)
break;
SKIP_CHAR(e, '/');
}
if (f < 5) {
parse_err++;
return;
}
/* OK we have our timers in array[3], and err is >0 if at
* least one -1 was seen. <e> points to the first char of
* the last timer. Let's prepare a new node with that.
*/
if (unlikely(!ustat))
ustat = calloc(1, sizeof(*ustat));
ustat->nb_err = err;
ustat->nb_req = 1;
/* use array[4] = total time in case of error */
ustat->total_time = (array[3] >= 0) ? array[3] : array[4];
ustat->total_time_ok = (array[3] >= 0) ? array[3] : 0;
e = field_start(e, BYTES_SENT_FIELD - TIME_FIELD + 1);
val = str2ic(e);
ustat->total_bytes_sent = val;
/* the line may be truncated because of a bad request or anything like this,
* without a method. Also, if it does not begin with an quote, let's skip to
* the next field because it's a capture. Let's fall back to the "method" itself
* if there's nothing else.
*/
e = field_start(e, METH_FIELD - BYTES_SENT_FIELD + 1);
while (*e != '"' && *e) {
/* Note: some syslog servers escape quotes ! */
if (*e == '\\' && e[1] == '"')
break;
e = field_start(e, 2);
}
if (unlikely(!*e)) {
truncated_line(linenum, line);
return;
}
b = field_start(e, URL_FIELD - METH_FIELD + 1); // avg 40 ns per line
if (!*b)
b = e;
/* stop at end of field or first ';' or '?', takes avg 64 ns per line */
e = b;
do {
if (*e == ' ' || *e == '?' || *e == ';') {
*(char *)e = 0;
break;
}
e++;
} while (*e);
/* now instead of copying the URL for a simple lookup, we'll link
* to it from the node we're trying to insert. If it returns a
* different value, it was already there. Otherwise we just have
* to dynamically realloc an entry using strdup().
*/
ustat->node.url.key = (char *)b;
ebpt_old = ebis_insert(&timers[0], &ustat->node.url);
if (ebpt_old != &ustat->node.url) {
struct url_stat *ustat_old;
/* node was already there, let's update previous one */
ustat_old = container_of(ebpt_old, struct url_stat, node.url);
ustat_old->nb_req ++;
ustat_old->nb_err += ustat->nb_err;
ustat_old->total_time += ustat->total_time;
ustat_old->total_time_ok += ustat->total_time_ok;
ustat_old->total_bytes_sent += ustat->total_bytes_sent;
} else {
ustat->url = ustat->node.url.key = strdup(ustat->node.url.key);
ustat = NULL; /* node was used */
}
}
void filter_count_ip(const char *source_field, const char *accept_field, const char *time_field, struct timer **tptr)
{
struct url_stat *ustat = NULL;
struct ebpt_node *ebpt_old;
const char *b, *e;
int f, err, array[5];
int val;
/* let's collect the response time */
if (!time_field) {
time_field = field_start(accept_field, TIME_FIELD - ACCEPT_FIELD + 1); // avg 115 ns per line
if (unlikely(!*time_field)) {
truncated_line(linenum, line);
return;
}
}
/* we have the field TIME_FIELD starting at <time_field>. We'll
* parse the 5 timers to detect errors, it takes avg 55 ns per line.
*/
e = time_field; err = 0; f = 0;
while (!SEP(*e)) {
if (f == 0 || f == 4) {
array[f] = str2ic(e);
if (array[f] < 0) {
array[f] = -1;
err = 1;
}
}
if (++f == 5)
break;
SKIP_CHAR(e, '/');
}
if (f < 5) {
parse_err++;
return;
}
/* OK we have our timers in array[0], and err is >0 if at
* least one -1 was seen. <e> points to the first char of
* the last timer. Let's prepare a new node with that.
*/
if (unlikely(!ustat))
ustat = calloc(1, sizeof(*ustat));
ustat->nb_err = err;
ustat->nb_req = 1;
/* use array[4] = total time in case of error */
ustat->total_time = (array[0] >= 0) ? array[0] : array[4];
ustat->total_time_ok = (array[0] >= 0) ? array[0] : 0;
e = field_start(e, BYTES_SENT_FIELD - TIME_FIELD + 1);
val = str2ic(e);
ustat->total_bytes_sent = val;
/* the source might be IPv4 or IPv6, so we always strip the port by
* removing the last colon.
*/
b = source_field;
e = field_stop(b + 1);
while (e > b && e[-1] != ':')
e--;
*(char *)(e - 1) = '\0';
/* now instead of copying the src for a simple lookup, we'll link
* to it from the node we're trying to insert. If it returns a
* different value, it was already there. Otherwise we just have
* to dynamically realloc an entry using strdup(). We're using the
* <url> field of the node to store the source address.
*/
ustat->node.url.key = (char *)b;
ebpt_old = ebis_insert(&timers[0], &ustat->node.url);
if (ebpt_old != &ustat->node.url) {
struct url_stat *ustat_old;
/* node was already there, let's update previous one */
ustat_old = container_of(ebpt_old, struct url_stat, node.url);
ustat_old->nb_req ++;
ustat_old->nb_err += ustat->nb_err;
ustat_old->total_time += ustat->total_time;
ustat_old->total_time_ok += ustat->total_time_ok;
ustat_old->total_bytes_sent += ustat->total_bytes_sent;
} else {
ustat->url = ustat->node.url.key = strdup(ustat->node.url.key);
ustat = NULL; /* node was used */
}
}
void filter_graphs(const char *accept_field, const char *time_field, struct timer **tptr)
{
struct timer *t2;
const char *e, *p;
int f, err, array[5];
if (!time_field) {
time_field = field_start(accept_field, TIME_FIELD - ACCEPT_FIELD + 1);
if (unlikely(!*time_field)) {
truncated_line(linenum, line);
return;
}
}
e = field_stop(time_field + 1);
/* we have field TIME_FIELD in [time_field]..[e-1] */
p = time_field;
err = 0;
f = 0;
while (!SEP(*p)) {
array[f] = str2ic(p);
if (array[f] < 0) {
array[f] = -1;
err = 1;
}
if (++f == 5)
break;
SKIP_CHAR(p, '/');
}
if (unlikely(f < 5)) {
parse_err++;
return;
}
/* if we find at least one negative time, we count one error
* with a time equal to the total session time. This will
* emphasize quantum timing effects associated to known
* timeouts. Note that on some buggy machines, it is possible
* that the total time is negative, hence the reason to reset
* it.
*/
if (filter & FILT_GRAPH_TIMERS) {
if (err) {
if (array[4] < 0)
array[4] = -1;
t2 = insert_timer(&timers[0], tptr, array[4]); // total time
t2->count++;
} else {
int v;
t2 = insert_timer(&timers[1], tptr, array[0]); t2->count++; // req
t2 = insert_timer(&timers[2], tptr, array[2]); t2->count++; // conn
t2 = insert_timer(&timers[3], tptr, array[3]); t2->count++; // resp
v = array[4] - array[0] - array[1] - array[2] - array[3]; // data time
if (v < 0 && !(filter & FILT_QUIET))
fprintf(stderr, "ERR: %s (%d %d %d %d %d => %d)\n",
line, array[0], array[1], array[2], array[3], array[4], v);
t2 = insert_timer(&timers[4], tptr, v); t2->count++;
lines_out++;
}
} else { /* percentile */
if (err) {
if (array[4] < 0)
array[4] = -1;
t2 = insert_value(&timers[0], tptr, array[4]); // total time
t2->count++;
} else {
int v;
t2 = insert_value(&timers[1], tptr, array[0]); t2->count++; // req
t2 = insert_value(&timers[2], tptr, array[2]); t2->count++; // conn
t2 = insert_value(&timers[3], tptr, array[3]); t2->count++; // resp
v = array[4] - array[0] - array[1] - array[2] - array[3]; // data time
if (v < 0 && !(filter & FILT_QUIET))
fprintf(stderr, "ERR: %s (%d %d %d %d %d => %d)\n",
line, array[0], array[1], array[2], array[3], array[4], v);
t2 = insert_value(&timers[4], tptr, v); t2->count++;
lines_out++;
}
}
}
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/
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