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
101
102
|
// SPDX-License-Identifier: GPL-3.0-or-later
#include "systemd-internals.h"
#include "libnetdata/required_dummies.h"
#define SYSTEMD_JOURNAL_WORKER_THREADS 5
netdata_mutex_t stdout_mutex = NETDATA_MUTEX_INITIALIZER;
static bool plugin_should_exit = false;
int main(int argc __maybe_unused, char **argv __maybe_unused) {
clocks_init();
nd_log_initialize_for_external_plugins("systemd-journal.plugin");
netdata_configured_host_prefix = getenv("NETDATA_HOST_PREFIX");
if(verify_netdata_host_prefix() == -1) exit(1);
// ------------------------------------------------------------------------
// initialization
netdata_systemd_journal_message_ids_init();
journal_init_query_status();
journal_init_files_and_directories();
// ------------------------------------------------------------------------
// debug
if(argc == 2 && strcmp(argv[1], "debug") == 0) {
bool cancelled = false;
char buf[] = "systemd-journal after:-8640000 before:0 direction:backward last:200 data_only:false slice:true source:all";
// char buf[] = "systemd-journal after:1695332964 before:1695937764 direction:backward last:100 slice:true source:all DHKucpqUoe1:PtVoyIuX.MU";
// char buf[] = "systemd-journal after:1694511062 before:1694514662 anchor:1694514122024403";
function_systemd_journal("123", buf, 600, &cancelled);
// function_systemd_units("123", "systemd-units", 600, &cancelled);
exit(1);
}
#ifdef ENABLE_SYSTEMD_DBUS
if(argc == 2 && strcmp(argv[1], "debug-units") == 0) {
bool cancelled = false;
function_systemd_units("123", "systemd-units", 600, &cancelled);
exit(1);
}
#endif
// ------------------------------------------------------------------------
// the event loop for functions
struct functions_evloop_globals *wg =
functions_evloop_init(SYSTEMD_JOURNAL_WORKER_THREADS, "SDJ", &stdout_mutex, &plugin_should_exit);
functions_evloop_add_function(wg, SYSTEMD_JOURNAL_FUNCTION_NAME, function_systemd_journal,
SYSTEMD_JOURNAL_DEFAULT_TIMEOUT);
#ifdef ENABLE_SYSTEMD_DBUS
functions_evloop_add_function(wg, SYSTEMD_UNITS_FUNCTION_NAME, function_systemd_units,
SYSTEMD_UNITS_DEFAULT_TIMEOUT);
#endif
// ------------------------------------------------------------------------
// register functions to netdata
netdata_mutex_lock(&stdout_mutex);
fprintf(stdout, PLUGINSD_KEYWORD_FUNCTION " GLOBAL \"%s\" %d \"%s\"\n",
SYSTEMD_JOURNAL_FUNCTION_NAME, SYSTEMD_JOURNAL_DEFAULT_TIMEOUT, SYSTEMD_JOURNAL_FUNCTION_DESCRIPTION);
#ifdef ENABLE_SYSTEMD_DBUS
fprintf(stdout, PLUGINSD_KEYWORD_FUNCTION " GLOBAL \"%s\" %d \"%s\"\n",
SYSTEMD_UNITS_FUNCTION_NAME, SYSTEMD_UNITS_DEFAULT_TIMEOUT, SYSTEMD_UNITS_FUNCTION_DESCRIPTION);
#endif
fflush(stdout);
netdata_mutex_unlock(&stdout_mutex);
// ------------------------------------------------------------------------
usec_t step_ut = 100 * USEC_PER_MS;
usec_t send_newline_ut = 0;
usec_t since_last_scan_ut = 1000 * USEC_PER_SEC; // something big to trigger scanning at start
bool tty = isatty(fileno(stderr)) == 1;
heartbeat_t hb;
heartbeat_init(&hb);
while(!plugin_should_exit) {
if(since_last_scan_ut > 60 * USEC_PER_SEC) {
journal_files_registry_update();
since_last_scan_ut = 0;
}
usec_t dt_ut = heartbeat_next(&hb, step_ut);
since_last_scan_ut += dt_ut;
send_newline_ut += dt_ut;
if(!tty && send_newline_ut > USEC_PER_SEC) {
send_newline_and_flush();
send_newline_ut = 0;
}
}
exit(0);
}
|