File: stats.cpp

package info (click to toggle)
cubemap 1.3.2-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 428 kB
  • sloc: cpp: 4,431; sh: 114; perl: 102; makefile: 60
file content (100 lines) | stat: -rw-r--r-- 2,385 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
#include <fcntl.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <vector>

#include "client.h"
#include "log.h"
#include "serverpool.h"
#include "stats.h"
#include "util.h"

using namespace std;

extern ServerPool *servers;

StatsThread::StatsThread(const string &stats_file, int stats_interval)
	: stats_file(stats_file),
	  stats_interval(stats_interval)
{
}

void StatsThread::do_work()
{
	while (!should_stop()) {
		int fd;
		char *filename;
		FILE *fp;
		timespec now;
		vector<ClientStats> client_stats;

		if (clock_gettime(CLOCK_MONOTONIC_COARSE, &now) == -1) {
			log_perror("clock_gettime(CLOCK_MONOTONIC_COARSE)");
			goto sleep;
		}

		// Open a new, temporary file.
		filename = strdup((stats_file + ".new.XXXXXX").c_str());
		fd = mkostemp(filename, O_WRONLY);
		if (fd == -1) {
			log_perror(filename);
			free(filename);
			goto sleep;
		}

		fp = fdopen(fd, "w");
		if (fp == NULL) {
			log_perror("fdopen");
			safe_close(fd);
			if (unlink(filename) == -1) {
				log_perror(filename);
			}
			free(filename);
			goto sleep;
		}

		client_stats = servers->get_client_stats();
		for (size_t i = 0; i < client_stats.size(); ++i) {
			fprintf(fp, "%s %d %d %s %d %llu %llu %llu \"%s\" \"%s\"\n",
			        client_stats[i].remote_addr.c_str(),
			        client_stats[i].sock,
			        0,  // Used to be fwmark.
				client_stats[i].url.c_str(),
				int(now.tv_sec - client_stats[i].connect_time.tv_sec),  // Rather coarse.
				(long long unsigned)(client_stats[i].bytes_sent),
				(long long unsigned)(client_stats[i].bytes_lost),
				(long long unsigned)(client_stats[i].num_loss_events),
				client_stats[i].referer.c_str(),
				client_stats[i].user_agent.c_str());
		}
		if (fclose(fp) == EOF) {
			log_perror("fclose");
			if (unlink(filename) == -1) {
				log_perror(filename);
			}
			free(filename);
			goto sleep;
		}
		
		if (rename(filename, stats_file.c_str()) == -1) {
			log_perror("rename");
			if (unlink(filename) == -1) {
				log_perror(filename);
			}
		}
		free(filename);

sleep:
		// Wait until we are asked to quit, stats_interval timeout,
		// or a spurious signal. (The latter will cause us to write stats
		// too often, but that's okay.)
		timespec timeout_ts;
		timeout_ts.tv_sec = stats_interval;
		timeout_ts.tv_nsec = 0;
		wait_for_wakeup(&timeout_ts);
	}
}