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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
/*
* Copyright (C) 2008-2009 Aconex. All Rights Reserved.
*
* 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.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "pmapi.h"
#include "impl.h"
#include <wtypes.h>
#include <winnt.h>
#include <winsvc.h>
#include <winuser.h>
typedef enum {
PCP_SERVICE_COLLECTORS = 0,
PCP_SERVICE_INFERENCE = 1,
PCP_SERVICE_PROXY = 2,
NUM_SERVICES
} PCPSERVICE;
VOID WINAPI pcpCollectorsSetup(DWORD, LPTSTR *);
VOID WINAPI pcpInferenceSetup(DWORD, LPTSTR *);
VOID WINAPI pcpProxySetup(DWORD, LPTSTR *);
DWORD WINAPI pcpCollectorsDispatch(DWORD, DWORD, LPVOID, LPVOID);
DWORD WINAPI pcpInferenceDispatch(DWORD, DWORD, LPVOID, LPVOID);
DWORD WINAPI pcpProxyDispatch(DWORD, DWORD, LPVOID, LPVOID);
typedef VOID WINAPI (*SETUPFUNC)(DWORD, LPTSTR *);
typedef DWORD WINAPI (*DISPATCHFUNC)(DWORD, DWORD, LPVOID, LPVOID);
struct {
TCHAR * name;
TCHAR * script;
HANDLE stopEvent;
SERVICE_STATUS status;
SERVICE_STATUS_HANDLE statusHandle;
SETUPFUNC setup;
DISPATCHFUNC dispatch;
} services[3] = {
{ .name = "PCP Collector Processes",
.script = "pcp",
.setup = pcpCollectorsSetup,
.dispatch = pcpCollectorsDispatch,
},
{ .name = "PCP Inference Engines",
.script = "pmie",
.setup = pcpInferenceSetup,
.dispatch = pcpInferenceDispatch,
},
{ .name = "PCP Collector Proxy",
.script = "pmproxy",
.setup = pcpProxySetup,
.dispatch = pcpProxyDispatch,
},
};
static char pcpdir[MAXPATHLEN+16]; /* PCP_DIR environment variable */
static char pcpconf[MAXPATHLEN+16]; /* PCP_CONF string for putenv */
static char pcpdirenv[MAXPATHLEN+16]; /* PCP_DIR string for putenv */
int
pcpScript(const char *name, const char *action)
{
char s[MAXPATHLEN];
snprintf(s, sizeof(s), "%s\\bin\\sh.exe /etc/%s %s", pcpdir, name, action);
return system(s);
}
VOID
pcpSetServiceState(PCPSERVICE s, DWORD state, DWORD code, DWORD waitHint)
{
services[s].status.dwServiceType = SERVICE_WIN32_SHARE_PROCESS;
services[s].status.dwCurrentState = state;
services[s].status.dwWin32ExitCode = code;
services[s].status.dwWaitHint = waitHint;
if (state == SERVICE_START_PENDING)
services[s].status.dwControlsAccepted = 0;
else
services[s].status.dwControlsAccepted = SERVICE_ACCEPT_STOP;
if ((state == SERVICE_RUNNING) || (state == SERVICE_STOPPED))
services[s].status.dwCheckPoint = 0;
else
services[s].status.dwCheckPoint++;
/* Report the status of the service to the SCM. */
SetServiceStatus(services[s].statusHandle, &services[s].status);
}
VOID
pcpServiceMain(DWORD argc, LPTSTR *argv, PCPSERVICE s)
{
char *default_basedirs[] = { "C:\\Glider", "C:\\MSYS" };
char *default_service = "pcp";
char *service = NULL, *basedir = NULL;
int i;
if (argc > 1) { /* first argument is service name */
service = argv[1];
for (i = 0; i < NUM_SERVICES; i++)
if (strcmp(service, services[i].name) == 0)
break;
if (i == NUM_SERVICES)
return; /* unknown service requested - bail out */
}
if (service == NULL)
service = default_service;
if (argc > 2) /* second argument is PCP_DIR */
basedir = argv[2];
else if ((basedir = getenv("PCP_DIR")) == NULL) {
for (i = 0; i < 3; i++)
if (access(default_basedirs[i], R_OK) == 0) {
basedir = default_basedirs[i];
break;
}
}
if (!basedir || access(basedir, R_OK) != 0)
return; /* stuffed up if we have no PCP_DIR - bail out */
snprintf(pcpdir, sizeof(pcpdir), "%s", basedir);
snprintf(pcpconf, sizeof(pcpconf), "PCP_CONF=%s\\etc\\pcp.conf", pcpdir);
snprintf(pcpdirenv, sizeof(pcpdirenv), "PCP_DIR=%s", pcpdir);
putenv(pcpconf);
putenv(pcpdirenv);
services[s].statusHandle = RegisterServiceCtrlHandlerEx(
services[s].name, services[s].dispatch, NULL);
if (!services[s].statusHandle)
return;
pcpSetServiceState(s, SERVICE_START_PENDING, NO_ERROR, 0);
/*
* Create an event. The control handler function signals
* this event when it receives the stop control code.
*/
services[s].stopEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (!services[s].stopEvent) {
pcpSetServiceState(s, SERVICE_STOPPED, NO_ERROR, 0);
return;
}
/*
* Go, go, go... run the start script for this service.
*/
if (pcpScript(services[s].script, "start") != 0) {
pcpSetServiceState(s, SERVICE_STOPPED, NO_ERROR, 0);
return;
}
pcpSetServiceState(s, SERVICE_RUNNING, NO_ERROR, 0);
/* Check whether to stop the service. */
WaitForSingleObject(services[s].stopEvent, INFINITE);
/* ServiceState already set to SERVICE_STOP_PENDING */
pcpScript(services[s].script, "stop");
pcpSetServiceState(s, SERVICE_STOPPED, NO_ERROR, 0);
}
VOID WINAPI
pcpCollectorsSetup(DWORD argc, LPTSTR *argv)
{
pcpServiceMain(argc, argv, PCP_SERVICE_COLLECTORS);
}
VOID WINAPI
pcpInferenceSetup(DWORD argc, LPTSTR *argv)
{
pcpServiceMain(argc, argv, PCP_SERVICE_INFERENCE);
}
VOID WINAPI
pcpProxySetup(DWORD argc, LPTSTR *argv)
{
pcpServiceMain(argc, argv, PCP_SERVICE_PROXY);
}
DWORD
pcpServiceHandler(DWORD dwControl, DWORD dwEventType,
LPVOID lpEventData, LPVOID lpContext, PCPSERVICE s)
{
switch(dwControl) {
case SERVICE_CONTROL_STOP:
services[s].status.dwCurrentState = SERVICE_STOP_PENDING;
SetServiceStatus(services[s].statusHandle, &services[s].status);
SetEvent(services[s].stopEvent);
return NO_ERROR;
default:
break;
}
/* Send current status (done for most request types) */
SetServiceStatus(services[s].statusHandle, &services[s].status);
return NO_ERROR;
}
DWORD WINAPI
pcpCollectorsDispatch(DWORD ctrl, DWORD type, LPVOID data, LPVOID ctxt)
{
return pcpServiceHandler(ctrl, type, data, ctxt, PCP_SERVICE_COLLECTORS);
}
DWORD WINAPI
pcpInferenceDispatch(DWORD ctrl, DWORD type, LPVOID data, LPVOID ctxt)
{
return pcpServiceHandler(ctrl, type, data, ctxt, PCP_SERVICE_INFERENCE);
}
DWORD WINAPI
pcpProxyDispatch(DWORD ctrl, DWORD type, LPVOID data, LPVOID ctxt)
{
return pcpServiceHandler(ctrl, type, data, ctxt, PCP_SERVICE_PROXY);
}
int
main(int argc, char **argv)
{
SERVICE_TABLE_ENTRY dispatchTable[2];
__pmSetProgname(argv[0]);
/* setup dispatch table and sentinel */
dispatchTable[0].lpServiceName = services[0].name;
dispatchTable[0].lpServiceProc = services[0].setup;
dispatchTable[1].lpServiceName = NULL;
dispatchTable[1].lpServiceProc = NULL;
if (!StartServiceCtrlDispatcher(dispatchTable)) {
DWORD c = GetLastError();
fprintf(stderr, "%s: cannot dispatch services (%ld)\n", pmProgname, c);
if (c == ERROR_FAILED_SERVICE_CONTROLLER_CONNECT)
fprintf(stderr, "%s: run as service, not on console\n", pmProgname);
return 1;
}
return 0;
}
|
