1 martin 1.22 //%LICENSE////////////////////////////////////////////////////////////////
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2 martin 1.23 //
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3 martin 1.22 // Licensed to The Open Group (TOG) under one or more contributor license
4 // agreements. Refer to the OpenPegasusNOTICE.txt file distributed with
5 // this work for additional information regarding copyright ownership.
6 // Each contributor licenses this file to you under the OpenPegasus Open
7 // Source License; you may not use this file except in compliance with the
8 // License.
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9 martin 1.23 //
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10 martin 1.22 // Permission is hereby granted, free of charge, to any person obtaining a
11 // copy of this software and associated documentation files (the "Software"),
12 // to deal in the Software without restriction, including without limitation
13 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
14 // and/or sell copies of the Software, and to permit persons to whom the
15 // Software is furnished to do so, subject to the following conditions:
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16 martin 1.23 //
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17 martin 1.22 // The above copyright notice and this permission notice shall be included
18 // in all copies or substantial portions of the Software.
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19 martin 1.23 //
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20 martin 1.22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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21 martin 1.23 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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22 martin 1.22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23 // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
24 // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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27 martin 1.23 //
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28 martin 1.22 //////////////////////////////////////////////////////////////////////////
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29 h.sterling 1.1 //
30 //%/////////////////////////////////////////////////////////////////////////////
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31 kumpf 1.14
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32 h.sterling 1.1 #include <fcntl.h>
33 #include <unistd.h>
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34 kumpf 1.14
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35 h.sterling 1.1 #include <Pegasus/Common/Signal.h>
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36 kumpf 1.16 #include <Pegasus/Common/Executor.h>
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37 kumpf 1.14
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38 w.otsuka 1.4 #define MAX_WAIT_TIME 240
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39 h.sterling 1.1
40 PEGASUS_USING_PEGASUS;
41 PEGASUS_USING_STD;
42
43 Boolean handleSigUsr1 = false;
44 Boolean graveError = false;
45
46 void sigUsr1Handler(int s_n, PEGASUS_SIGINFO_T * s_info, void * sig)
47 {
48 handleSigUsr1 = true;
49 }
50
51 void sigTermHandler(int s_n, PEGASUS_SIGINFO_T * s_info, void * sig)
52 {
53 graveError= handleSigUsr1=true;
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54 kumpf 1.17 }
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55 h.sterling 1.1
56
57 //constructor
58 ServerProcess::ServerProcess() {}
59
60 //destructor
61 ServerProcess::~ServerProcess() {}
62
63 // no-ops
64 void ServerProcess::cimserver_set_process(void* p) {}
65 void ServerProcess::cimserver_exitRC(int rc) {}
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66 kumpf 1.17 int ServerProcess::cimserver_initialize() { return 1; }
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67 marek 1.10
68 // for all OSes supporting signals provide a cimserver_wait function
69 // that waits to be awakened by signal PEGASUS_SIGTERM or PEGASUS_SIGHUP
70 #ifdef PEGASUS_HAS_SIGNALS
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71 kumpf 1.17 int ServerProcess::cimserver_wait()
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72 marek 1.10 {
73 int sig = -1;
74 sigset_t set;
75 sigemptyset(&set);
76 sigaddset(&set, PEGASUS_SIGTERM);
77 sigaddset(&set, PEGASUS_SIGHUP);
78 errno = 0;
79 do
80 {
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81 karl 1.21 #if defined(PEGASUS_OS_ZOS)
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82 marek 1.10 sig = sigwait(&set);
83 #else // else for platforms = LINUX, HPUX, AIX
84 sigwait(&set, &sig);
85 #endif
86 } while (errno == EINTR);
87 return sig;
88 }
89 #else
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90 kumpf 1.17 int ServerProcess::cimserver_wait() { return 1; }
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91 marek 1.10 #endif
92
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93 kumpf 1.17 String ServerProcess::getHome() { return String::EMPTY; }
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94 h.sterling 1.1
95 // daemon_init , RW Stevens, "Advance UNIX Programming"
96
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97 kumpf 1.17 int ServerProcess::cimserver_fork()
98 {
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99 kumpf 1.15 umask(S_IRWXG | S_IRWXO);
100
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101 kumpf 1.16 if (Executor::detectExecutor() == 0)
102 {
103 // We don't need to fork if we're running with Privilege Separation
104 return 0;
105 }
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106 kumpf 1.15
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107 kumpf 1.20 getSigHandle()->registerHandler(SIGTERM, sigTermHandler);
108 getSigHandle()->activate(SIGTERM);
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109 h.sterling 1.1 getSigHandle()->registerHandler(PEGASUS_SIGUSR1, sigUsr1Handler);
110 getSigHandle()->activate(PEGASUS_SIGUSR1);
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111 kumpf 1.17
112 pid_t pid;
113 if( (pid = fork() ) < 0)
114 {
115 getSigHandle()->deactivate(PEGASUS_SIGUSR1);
116 getSigHandle()->deactivate(SIGTERM);
117 return -1;
118 }
119 else if (pid != 0)
120 {
121 //
122 // parent wait for child
123 // if there is a problem with signal, parent process terminates
124 // when waitTime expires
125 //
126 Uint32 waitTime = MAX_WAIT_TIME;
127
128 while (!handleSigUsr1 && waitTime > 0)
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129 w.otsuka 1.4 {
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130 kumpf 1.17 sleep(1);
131 waitTime--;
132 }
133
134 if (!handleSigUsr1)
135 {
136 MessageLoaderParms parms(
137 "src.Service.ServerProcessUnix.CIMSERVER_START_TIMEOUT",
138 "The cimserver command timed out waiting for the CIM server "
139 "to start.");
140 PEGASUS_STD(cerr) << MessageLoader::getMessage(parms) <<
141 PEGASUS_STD(endl);
142 }
143 exit(graveError);
144 }
145
146 setsid();
147 umask(S_IRWXG | S_IRWXO);
148
149 // spawned daemon process doesn't need the old signal handlers of its parent
150 getSigHandle()->deactivate(PEGASUS_SIGUSR1);
151 kumpf 1.17 getSigHandle()->deactivate(SIGTERM);
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152 h.sterling 1.1
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153 kumpf 1.17 return 0;
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154 h.sterling 1.1 }
155
156
157 // notify parent process to terminate so user knows that cimserver
158 // is ready to serve CIM requests.
159 void ServerProcess::notify_parent(int id)
160 {
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161 kumpf 1.17 pid_t ppid = getppid();
162 if (id)
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163 kumpf 1.19 {
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164 kumpf 1.17 kill(ppid, SIGTERM);
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165 kumpf 1.19 }
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166 kumpf 1.17 else
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167 kumpf 1.19 {
168 if (Executor::detectExecutor() == 0)
169 {
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170 kumpf 1.20 Executor::daemonizeExecutor();
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171 kumpf 1.19 }
172 else
173 {
174 kill(ppid, PEGASUS_SIGUSR1);
175 }
176 }
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177 h.sterling 1.1 }
178
179
180 // Platform specific run
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181 kumpf 1.7 int ServerProcess::platform_run(
182 int argc,
183 char** argv,
184 Boolean shutdownOption,
185 Boolean debugOutputOption)
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186 h.sterling 1.1 {
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187 kumpf 1.7 return cimserver_run(argc, argv, shutdownOption, debugOutputOption);
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188 h.sterling 1.1 }
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Return to
ServerProcessUnix.cpp
CVS log
Up to [Pegasus] / pegasus / src / Service