1 karl 1.22 //%2006////////////////////////////////////////////////////////////////////////
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2 kumpf 1.5 //
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3 karl 1.17 // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
4 // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
5 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
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6 karl 1.14 // IBM Corp.; EMC Corporation, The Open Group.
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7 karl 1.17 // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
8 // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
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9 karl 1.21 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
10 // EMC Corporation; VERITAS Software Corporation; The Open Group.
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11 karl 1.22 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
12 // EMC Corporation; Symantec Corporation; The Open Group.
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13 mike 1.2 //
14 // Permission is hereby granted, free of charge, to any person obtaining a copy
15 // of this software and associated documentation files (the "Software"), to
16 // deal in the Software without restriction, including without limitation the
17 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
18 // sell copies of the Software, and to permit persons to whom the Software is
19 // furnished to do so, subject to the following conditions:
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20 kumpf 1.5 //
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21 mike 1.2 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
22 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
23 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
24 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
25 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
26 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
27 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 //
30 //==============================================================================
31 //
32 //%/////////////////////////////////////////////////////////////////////////////
33
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34 kumpf 1.9 #ifndef Pegasus_Signal_h
35 #define Pegasus_Signal_h
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36 mike 1.2
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37 kumpf 1.9 #include <Pegasus/Common/Linkage.h>
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38 mike 1.23 #include <Pegasus/Common/Mutex.h>
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39 mike 1.3
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40 kumpf 1.9 #ifdef PEGASUS_HAS_SIGNALS
41
42 # include <signal.h>
43 typedef siginfo_t PEGASUS_SIGINFO_T;
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44 marek 1.26 # define PEGASUS_SIGHUP SIGHUP
45 # define PEGASUS_SIGABRT SIGABRT
46 # define PEGASUS_SIGPIPE SIGPIPE
47 # define PEGASUS_SIGTERM SIGTERM
48 # define PEGASUS_SIGUSR1 SIGUSR1
49 # define PEGASUS_SIGCHLD SIGCHLD
50 # define PEGASUS_SIGDANGER SIGDANGER
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51 kumpf 1.9
52 #else // PEGASUS_HAS_SIGNALS
53
54 typedef void PEGASUS_SIGINFO_T;
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55 marek 1.26 # define PEGASUS_SIGHUP 1
56 # define PEGASUS_SIGABRT 11
57 # define PEGASUS_SIGPIPE 13
58 # define PEGASUS_SIGTERM 15
59 # define PEGASUS_SIGUSR1 16
60 # define PEGASUS_SIGCHLD 18
61 # define PEGASUS_SIGDANGER 33
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62 kumpf 1.9
63 #endif // PEGASUS_HAS_SIGNALS
64
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65 mike 1.2
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66 sage 1.6 extern "C" {
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67 kumpf 1.27 typedef void (* signal_handler)(int, PEGASUS_SIGINFO_T *, void *);
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68 sage 1.6 }
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69 mike 1.2
70 PEGASUS_NAMESPACE_BEGIN
71
72 class PEGASUS_COMMON_LINKAGE SignalHandler
73 {
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74 david.dillard 1.18 public:
75 SignalHandler();
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76 mike 1.2
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77 david.dillard 1.18 ~SignalHandler(); // deactivate all registered handlers
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78 mike 1.2
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79 david.dillard 1.18 // these functions should throw exceptions
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80 mike 1.2
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81 kumpf 1.27 /**
82 Registers a signal handler.
83 @param signum The signal number for which to register the handler.
84 @sighandler The signal handler to register
85 @exception IndexOutOfBoundsException if signum is outside the range
86 of signals supported by the SignalHandler (see PEGASUS_NSIG).
87 */
88 void registerHandler(unsigned signum, signal_handler sighandler);
89
90 /**
91 Activates a signal handler.
92 @param signum The signal number for which to activate the handler.
93 @exception IndexOutOfBoundsException if signum is outside the range
94 of signals supported by the SignalHandler (see PEGASUS_NSIG).
95 */
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96 david.dillard 1.20 void activate(unsigned signum);
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97 mike 1.2
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98 kumpf 1.27 /**
99 Deactivates a signal handler.
100 @param signum The signal number for which to deactivate the handler.
101 @exception IndexOutOfBoundsException if signum is outside the range
102 of signals supported by the SignalHandler (see PEGASUS_NSIG).
103 */
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104 david.dillard 1.20 void deactivate(unsigned signum);
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105 mike 1.2
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106 david.dillard 1.18 void deactivateAll();
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107 mike 1.2
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108 kumpf 1.27 /**
109 Sets a signal action to "ignore".
110 @param signum The signal number to ignore.
111 @exception IndexOutOfBoundsException if signum is outside the range
112 of signals supported by the SignalHandler (see PEGASUS_NSIG).
113 */
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114 david.dillard 1.20 static void ignore(unsigned signum);
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115 mike 1.2
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116 kumpf 1.27 /**
117 Resets a signal action to its default.
118 @param signum The signal number for which to reset the signal action.
119 @exception IndexOutOfBoundsException if signum is outside the range
120 of signals supported by the SignalHandler (see PEGASUS_NSIG).
121 */
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122 mateus.baur 1.25 static void defaultAction(unsigned signum);
123
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124 david.dillard 1.18 private:
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125 mike 1.2
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126 kumpf 1.9 #ifdef PEGASUS_HAS_SIGNALS
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127 david.dillard 1.20 enum
128 {
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129 marek 1.26 PEGASUS_NSIG = 33
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130 david.dillard 1.20 };
131
132 static void verifySignum(unsigned signum);
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133 kumpf 1.9
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134 david.dillard 1.18 typedef struct {
135 int signum;
136 int active;
137 signal_handler sh;
138 struct sigaction oldsa;
139 } register_handler;
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140 mike 1.2
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141 david.dillard 1.18 register_handler reg_handler[PEGASUS_NSIG + 1];
142 Mutex reg_mutex;
143
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144 david.dillard 1.19 void deactivate_i(register_handler &rh);
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145 david.dillard 1.18
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146 david.dillard 1.20 register_handler &getHandler(unsigned sigum);
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147 kumpf 1.9 #endif
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148 mike 1.2
149 };
150
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151 kumpf 1.12 PEGASUS_COMMON_LINKAGE SignalHandler * getSigHandle();
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152 mike 1.2
153 PEGASUS_NAMESPACE_END
154
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155 kumpf 1.9 #endif // Pegasus_Signal_h
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Signal.h
CVS log
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