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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
* Copyright (C) 2018 "IoT.bzh"
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define _GNU_SOURCE
#include "xds-service-api.h"
#include "supervisor-service.h"
#include "xds-service-apidef.h"
#include <stdio.h>
#include <string.h>
#include <time.h>
#define SRV_SUPERVISOR_NAME "supervisor"
#define SRV_HARVESTER_NAME "harvester"
typedef struct metric_t {
char* name;
json_object* data;
struct timespec timestamp;
} METRIC_T;
void list(struct afb_req request)
{
json_object *result, *item = NULL;
DAEMONS_T* daemons = NULL;
getDaemons(&daemons);
if (daemons == NULL) {
afb_req_fail(request, "failed", "");
return;
}
result = json_object_new_array();
for (int i = 0; i < daemons->count; i++) {
wrap_json_pack(&item, "{si ss sb sb so so so}",
"pid", daemons->daemons[i]->pid,
"name", daemons->daemons[i]->name,
"isServer", daemons->daemons[i]->isServer,
"isClient", daemons->daemons[i]->isClient,
"ws_servers", daemons->daemons[i]->ws_servers,
"ws_clients", daemons->daemons[i]->ws_clients,
"apis", daemons->daemons[i]->apis);
//, "config", daemons->daemons[i]->config);
json_object_array_add(result, item);
}
afb_req_success(request, result, NULL);
}
void trace(struct afb_req request)
{
int rc;
json_object* req_args = afb_req_json(request);
json_object* result = NULL;
DAEMONS_T* daemons = NULL;
const char* ws_name;
const char* wsn;
if (wrap_json_unpack(req_args, "{s:?s}", "ws", &ws_name)) {
afb_req_fail(request, "Failed", "Error processing arguments.");
return;
}
AFB_INFO("Trace ws: %s", ws_name);
getDaemons(&daemons);
if (daemons == NULL || daemons->count <= 0) {
afb_req_fail(request, "failed", "No daemon found");
}
// search server and client pid
DAEMON_T *pid_s = NULL, *pid_c = NULL;
for (int i = 0; i < daemons->count; i++) {
AFB_DEBUG("_DEBUG_ svr %s",
json_object_to_json_string(daemons->daemons[i]->ws_servers));
AFB_DEBUG("_DEBUG_ cli %s",
json_object_to_json_string(daemons->daemons[i]->ws_clients));
json_object* ws_servers = daemons->daemons[i]->ws_servers;
for (int j = 0; j < json_object_array_length(ws_servers); j++) {
wsn = json_object_get_string(json_object_array_get_idx(ws_servers, j++));
if (wsn && strstr(wsn, ws_name) != NULL) {
pid_s = daemons->daemons[i];
break;
}
}
json_object* ws_clients = daemons->daemons[i]->ws_clients;
for (int j = 0; j < json_object_array_length(ws_clients); j++) {
wsn = json_object_get_string(json_object_array_get_idx(ws_clients, j++));
if (wsn && strstr(wsn, ws_name) != NULL) {
pid_c = daemons->daemons[i];
break;
}
}
if (pid_s != NULL && pid_c != NULL) {
if ((rc = trace_exchange(pid_s, pid_c)) < 0) {
afb_req_fail_f(request, "failed", "Trace error %d", rc);
}
break;
}
}
if (pid_s == NULL || pid_c == NULL) {
afb_req_fail(request, "failed", "Cannot determine Server or Client");
return;
}
afb_req_success_f(request, result, "Tracing Server pid=%d <-> Client pid=%d",
pid_s->pid, pid_c->pid);
}
static int harvester_post_data(METRIC_T* metric)
{
int rc;
json_object *j_res, *j_query;
if (!metric->timestamp.tv_sec && !metric->timestamp.tv_nsec) {
clock_gettime(CLOCK_MONOTONIC, &metric->timestamp);
}
rc = wrap_json_pack(&j_query, "{s:s s:i s:{ s:s s:o s:i } }", "host",
"localhost", "port", 8086, "metric", "name", metric->name,
"value", metric->data, "timestamp",
metric->timestamp.tv_sec);
if (rc < 0) {
AFB_ERROR("Error packing metric, rc=%d", rc);
return rc;
}
AFB_DEBUG("%s write: %s", SRV_HARVESTER_NAME,
json_object_to_json_string(j_query));
rc = afb_service_call_sync(SRV_HARVESTER_NAME, "write", j_query, &j_res);
if (rc < 0) {
AFB_ERROR("Error %s write : rc=%d, j_res=%s", SRV_HARVESTER_NAME, rc,
json_object_to_json_string(j_res));
return rc;
}
return 0;
}
void xds_event_cb(const char* evtname, json_object* j_event)
{
int rc;
METRIC_T metric;
const char* type = NULL;
struct json_object* request = NULL;
AFB_NOTICE("RECV Event %s : %s", evtname,
json_object_to_json_string(j_event));
if (strcmp(evtname, "supervisor/trace") != 0) {
return;
}
if ((rc = wrap_json_unpack(j_event, "{s:?s}", "type", &type)) < 0) {
AFB_ERROR("Cannot decode event type");
return;
}
if (strcmp(type, "request") == 0) {
if (!json_object_object_get_ex(j_event, "request", &request)) {
AFB_ERROR("Cannot decode event request");
return;
}
metric.name = "trace";
metric.data = request;
rc = harvester_post_data(&metric);
if (rc < 0) {
AFB_ERROR("ERROR harvester_post_data: rc %d", rc);
}
}
}
void auth(struct afb_req request)
{
afb_req_session_set_LOA(request, 1);
afb_req_success(request, NULL, NULL);
}
int init()
{
#if 0 // DEBUG
DAEMONS_T *daemons = NULL;
getDaemons(&daemons);
if (daemons) {
if (daemons->count) {
AFB_DEBUG("_DEBUG_ daemons->count %d", daemons->count);
for (int i = 0; i < daemons->count; i++) {
AFB_DEBUG("pid %d : isServer %d, isClient %d, %s %s",
daemons->daemons[i]->pid, daemons->daemons[i]->isServer,
daemons->daemons[i]->isClient,
json_object_to_json_string(daemons->daemons[i]->ws_servers),
json_object_to_json_string(daemons->daemons[i]->ws_clients));
}
free(daemons);
} else {
AFB_DEBUG("_DEBUG_ no dameons detected !");
}
}
#endif
supervisor_service_init();
return 0;
}
|
