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1 /* |
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2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: SignalHandler |
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15 * |
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16 */ |
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17 |
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18 #include <sys/types.h> |
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19 #include <sys/wait.h> |
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20 #include <pthread.h> |
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21 #include <signal.h> |
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22 |
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23 #include "logger.h" |
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24 #include "comms.h" |
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25 #include "commsclientendpoint.h" |
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26 |
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27 #include "signalhandler.h" |
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28 #include "signalhandlermessages.h" |
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29 |
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30 namespace java |
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31 { |
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32 namespace captain |
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33 { |
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34 |
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35 |
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36 SignalHandler::SignalHandler():mThreadId(0) |
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37 { |
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38 } |
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39 |
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40 SignalHandler::~SignalHandler() |
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41 { |
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42 } |
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43 |
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44 void SignalHandler::start() |
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45 { |
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46 if (pthread_create(&mThreadId, 0, SignalHandler::signalHandlerThread, NULL)) |
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47 { |
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48 ELOG(EJavaCaptain, "pthread_create failed for signal handler thread"); |
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49 } |
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50 } |
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51 |
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52 void SignalHandler::stop() |
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53 { |
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54 kill(getpid(), SIGINT); |
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55 pthread_join(mThreadId, NULL); |
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56 } |
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57 |
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58 void* SignalHandler::signalHandlerThread(void* /*aParams*/) |
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59 { |
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60 |
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61 CommsClientEndpoint comms; |
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62 if (comms.connect(IPC_ADDRESS_JAVA_CAPTAIN_C)) |
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63 { |
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64 ELOG(EJavaCaptain, "Connect to main message loop failed!"); |
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65 return NULL; |
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66 } |
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67 |
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68 sigset_t ss; |
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69 sigemptyset(&ss); |
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70 sigaddset(&ss, SIGCHLD); |
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71 sigaddset(&ss, SIGALRM); |
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72 sigaddset(&ss, SIGINT); |
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73 |
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74 int signal = 0; |
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75 bool keepWaiting = true; |
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76 while (keepWaiting && !sigwait(&ss, &signal)) |
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77 { |
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78 CommsMessage msg; |
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79 switch (signal) |
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80 { |
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81 case SIGCHLD: |
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82 LOG(EJavaCaptain, EInfo, "SIGCHLD received"); |
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83 { |
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84 int status = 0; |
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85 pid_t pidi = 0; |
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86 while ((pidi=waitpid(-1, &status, WNOHANG)) > 0) |
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87 { |
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88 LOG2(EJavaCaptain, EInfo, "SIGCHLD received - waitpid returns pid=%d status=%d", (int)pidi, status); |
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89 |
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90 LOG1(EJavaCaptain, EInfo, "WIFEXITED(status) returns %d", WIFEXITED(status)); |
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91 if (WIFEXITED(status)) |
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92 { |
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93 LOG1(EJavaCaptain, EInfo, "WEXITSTATUS(status) returns %d", WEXITSTATUS(status)); |
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94 } |
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95 |
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96 LOG1(EJavaCaptain, EInfo, "WIFSIGNALED(status) returns %d", WIFSIGNALED(status)); |
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97 if (WIFSIGNALED(status)) |
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98 { |
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99 LOG1(EJavaCaptain, EInfo, "WTERMSIG(status) returns %d", WTERMSIG(status)); |
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100 } |
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101 |
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102 LOG1(EJavaCaptain, EInfo, "WIFSTOPPED(status) returns %d", WIFSTOPPED(status)); |
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103 if (WIFSTOPPED(status)) |
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104 { |
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105 LOG1(EJavaCaptain, EInfo, "WSTOPSIG(status) returns %d", WSTOPSIG(status)); |
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106 } |
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107 |
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108 LOG2(EJavaCaptain, EInfo, "initiating pmcTerminated event (pid=%d, status=%d)", (int)pidi, status); |
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109 setSignalChildMessage(msg, pidi, status); |
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110 comms.send(msg); |
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111 LOG2(EJavaCaptain, EInfo, "initiated pmcTerminated event (pid=%d, status=%d)", (int)pidi, status); |
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112 } |
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113 } |
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114 break; |
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115 |
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116 case SIGALRM: |
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117 LOG(EJavaCaptain, EInfo, "SIGALRM received"); |
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118 setSignalAlarmMessage(msg); |
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119 comms.send(msg); |
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120 break; |
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121 |
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122 case SIGINT: |
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123 LOG(EJavaCaptain, EInfo, "SIGINT received"); |
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124 setSignalInterruptMessage(msg); |
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125 comms.send(msg); |
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126 keepWaiting = false; |
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127 break; |
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128 |
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129 default: |
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130 ELOG1(EJavaCaptain, "Unknown signal %d sigwaited!", signal); |
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131 } |
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132 } |
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133 return NULL; |
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134 } |
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135 |
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136 } // namespace captain |
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137 } // namespace java |
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138 |