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1 /* |
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2 * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 #include <string.h> |
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25 #include "jvmti.h" |
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26 #include "agent_common.h" |
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27 #include "jni_tools.h" |
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28 #include "jvmti_tools.h" |
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29 |
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30 #ifdef __cplusplus |
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31 extern "C" { |
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32 #endif |
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33 |
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34 /* ============================================================================= */ |
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35 |
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36 /* scaffold objects */ |
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37 static jlong timeout = 0; |
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38 |
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39 /* constant names */ |
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40 #define THREAD_NAME "TestedThread" |
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41 |
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42 /* constants */ |
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43 #define DEFAULT_THREADS_COUNT 10 |
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44 |
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45 static int threadsCount = 0; |
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46 |
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47 /* ============================================================================= */ |
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48 |
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49 static int fillThreadsByName(jvmtiEnv* jvmti, JNIEnv* jni, |
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50 const char name[], int foundCount, jthread foundThreads[]); |
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51 |
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52 /** Agent algorithm. */ |
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53 static void JNICALL |
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54 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { |
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55 |
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56 NSK_DISPLAY0("Wait for threads to start\n"); |
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57 if (!nsk_jvmti_waitForSync(timeout)) |
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58 return; |
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59 |
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60 /* perform testing */ |
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61 { |
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62 jthread* threads = NULL; |
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63 jvmtiError* results = NULL; |
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64 int i; |
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65 |
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66 NSK_DISPLAY1("Allocate threads array: %d threads\n", threadsCount); |
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67 if (!NSK_JVMTI_VERIFY( |
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68 NSK_CPP_STUB3(Allocate, jvmti, (threadsCount * sizeof(jthread)), |
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69 (unsigned char**)&threads))) { |
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70 nsk_jvmti_setFailStatus(); |
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71 return; |
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72 } |
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73 NSK_DISPLAY1(" ... allocated array: %p\n", (void*)threads); |
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74 |
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75 NSK_DISPLAY1("Allocate results array: %d threads\n", threadsCount); |
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76 if (!NSK_JVMTI_VERIFY( |
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77 NSK_CPP_STUB3(Allocate, jvmti, (threadsCount * sizeof(jvmtiError)), |
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78 (unsigned char**)&results))) { |
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79 nsk_jvmti_setFailStatus(); |
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80 return; |
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81 } |
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82 NSK_DISPLAY1(" ... allocated array: %p\n", (void*)threads); |
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83 |
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84 NSK_DISPLAY1("Find threads: %d threads\n", threadsCount); |
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85 if (!NSK_VERIFY(fillThreadsByName(jvmti, jni, THREAD_NAME, threadsCount, threads))) |
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86 return; |
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87 |
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88 NSK_DISPLAY0("Suspend threads list\n"); |
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89 if (!NSK_JVMTI_VERIFY( |
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90 NSK_CPP_STUB4(SuspendThreadList, jvmti, threadsCount, threads, results))) { |
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91 nsk_jvmti_setFailStatus(); |
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92 return; |
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93 } |
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94 |
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95 NSK_DISPLAY0("Check threads results:\n"); |
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96 for (i = 0; i < threadsCount; i++) { |
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97 NSK_DISPLAY3(" ... thread #%d: %s (%d)\n", |
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98 i, TranslateError(results[i]), (int)results[i]); |
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99 if (!NSK_JVMTI_VERIFY(results[i])) |
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100 nsk_jvmti_setFailStatus(); |
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101 } |
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102 |
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103 NSK_DISPLAY0("Resume threads list\n"); |
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104 if (!NSK_JVMTI_VERIFY( |
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105 NSK_CPP_STUB4(ResumeThreadList, jvmti, threadsCount, threads, results))) { |
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106 nsk_jvmti_setFailStatus(); |
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107 return; |
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108 } |
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109 |
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110 NSK_DISPLAY0("Check threads results:\n"); |
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111 for (i = 0; i < threadsCount; i++) { |
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112 NSK_DISPLAY3(" ... thread #%d: %s (%d)\n", |
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113 i, TranslateError(results[i]), (int)results[i]); |
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114 if (!NSK_JVMTI_VERIFY(results[i])) |
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115 nsk_jvmti_setFailStatus(); |
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116 } |
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117 |
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118 NSK_DISPLAY0("Get state vector for each thread\n"); |
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119 for (i = 0; i < threadsCount; i++) { |
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120 jint state = 0; |
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121 |
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122 NSK_DISPLAY2(" thread #%d (%p):\n", i, (void*)threads[i]); |
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123 if (!NSK_JVMTI_VERIFY( |
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124 NSK_CPP_STUB3(GetThreadState, jvmti, threads[i], &state))) { |
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125 nsk_jvmti_setFailStatus(); |
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126 } |
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127 NSK_DISPLAY2(" ... got state vector: %s (%d)\n", |
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128 TranslateState(state), (int)state); |
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129 |
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130 if ((state & JVMTI_THREAD_STATE_SUSPENDED) != 0) { |
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131 NSK_COMPLAIN3("ResumeThreadList() does not turn off flag SUSPENDED for thread #%i:\n" |
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132 "# state: %s (%d)\n", |
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133 i, TranslateState(state), (int)state); |
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134 nsk_jvmti_setFailStatus(); |
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135 } |
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136 } |
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137 |
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138 NSK_DISPLAY0("Let threads to run and finish\n"); |
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139 if (!nsk_jvmti_resumeSync()) |
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140 return; |
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141 |
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142 NSK_DISPLAY0("Wait for thread to finish\n"); |
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143 if (!nsk_jvmti_waitForSync(timeout)) |
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144 return; |
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145 |
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146 NSK_DISPLAY0("Delete threads references\n"); |
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147 for (i = 0; i < threadsCount; i++) { |
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148 if (threads[i] != NULL) |
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149 NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, threads[i])); |
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150 } |
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151 |
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152 NSK_DISPLAY1("Deallocate threads array: %p\n", (void*)threads); |
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153 if (!NSK_JVMTI_VERIFY( |
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154 NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)threads))) { |
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155 nsk_jvmti_setFailStatus(); |
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156 } |
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157 |
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158 NSK_DISPLAY1("Deallocate results array: %p\n", (void*)results); |
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159 if (!NSK_JVMTI_VERIFY( |
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160 NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)results))) { |
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161 nsk_jvmti_setFailStatus(); |
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162 } |
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163 } |
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164 |
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165 NSK_DISPLAY0("Let debugee to finish\n"); |
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166 if (!nsk_jvmti_resumeSync()) |
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167 return; |
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168 } |
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169 |
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170 /* ============================================================================= */ |
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171 |
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172 /** Find threads whose name starts with specified name prefix. */ |
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173 static int fillThreadsByName(jvmtiEnv* jvmti, JNIEnv* jni, |
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174 const char name[], int foundCount, jthread foundThreads[]) { |
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175 jint count = 0; |
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176 jthread* threads = NULL; |
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177 |
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178 size_t len = strlen(name); |
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179 int found = 0; |
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180 int i; |
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181 |
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182 for (i = 0; i < foundCount; i++) { |
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183 foundThreads[i] = NULL; |
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184 } |
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185 |
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186 if (!NSK_JVMTI_VERIFY( |
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187 NSK_CPP_STUB3(GetAllThreads, jvmti, &count, &threads))) { |
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188 nsk_jvmti_setFailStatus(); |
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189 return NSK_FALSE; |
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190 } |
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191 |
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192 found = 0; |
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193 for (i = 0; i < count; i++) { |
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194 jvmtiThreadInfo info; |
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195 |
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196 if (!NSK_JVMTI_VERIFY( |
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197 NSK_CPP_STUB3(GetThreadInfo, jvmti, threads[i], &info))) { |
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198 nsk_jvmti_setFailStatus(); |
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199 break; |
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200 } |
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201 |
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202 if (info.name != NULL && strncmp(name, info.name, len) == 0) { |
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203 NSK_DISPLAY3(" ... found thread #%d: %p (%s)\n", |
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204 found, threads[i], info.name); |
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205 if (found < foundCount) |
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206 foundThreads[found] = threads[i]; |
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207 found++; |
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208 } |
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209 |
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210 } |
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211 |
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212 if (!NSK_JVMTI_VERIFY( |
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213 NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)threads))) { |
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214 nsk_jvmti_setFailStatus(); |
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215 return NSK_FALSE; |
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216 } |
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217 |
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218 if (found != foundCount) { |
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219 NSK_COMPLAIN3("Unexpected number of tested threads found:\n" |
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220 "# name: %s\n" |
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221 "# found: %d\n" |
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222 "# expected: %d\n", |
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223 name, found, foundCount); |
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224 nsk_jvmti_setFailStatus(); |
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225 return NSK_FALSE; |
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226 } |
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227 |
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228 NSK_DISPLAY1("Make global references for threads: %d threads\n", foundCount); |
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229 for (i = 0; i < foundCount; i++) { |
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230 if (!NSK_JNI_VERIFY(jni, (foundThreads[i] = (jthread) |
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231 NSK_CPP_STUB2(NewGlobalRef, jni, foundThreads[i])) != NULL)) { |
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232 nsk_jvmti_setFailStatus(); |
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233 return NSK_FALSE; |
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234 } |
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235 NSK_DISPLAY2(" ... thread #%d: %p\n", i, foundThreads[i]); |
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236 } |
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237 |
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238 return NSK_TRUE; |
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239 } |
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240 |
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241 /* ============================================================================= */ |
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242 |
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243 /** Agent library initialization. */ |
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244 #ifdef STATIC_BUILD |
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245 JNIEXPORT jint JNICALL Agent_OnLoad_resumethrdlst001(JavaVM *jvm, char *options, void *reserved) { |
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246 return Agent_Initialize(jvm, options, reserved); |
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247 } |
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248 JNIEXPORT jint JNICALL Agent_OnAttach_resumethrdlst001(JavaVM *jvm, char *options, void *reserved) { |
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249 return Agent_Initialize(jvm, options, reserved); |
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250 } |
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251 JNIEXPORT jint JNI_OnLoad_resumethrdlst001(JavaVM *jvm, char *options, void *reserved) { |
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252 return JNI_VERSION_1_8; |
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253 } |
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254 #endif |
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255 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
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256 jvmtiEnv* jvmti = NULL; |
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257 |
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258 /* init framework and parse options */ |
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259 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) |
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260 return JNI_ERR; |
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261 |
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262 timeout = nsk_jvmti_getWaitTime() * 60 * 1000; |
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263 |
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264 /* get options */ |
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265 threadsCount = nsk_jvmti_findOptionIntValue("threads", DEFAULT_THREADS_COUNT); |
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266 if (!NSK_VERIFY(threadsCount > 0)) |
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267 return JNI_ERR; |
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268 |
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269 /* create JVMTI environment */ |
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270 if (!NSK_VERIFY((jvmti = |
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271 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) |
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272 return JNI_ERR; |
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273 |
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274 /* add specific capabilities for suspending thread */ |
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275 { |
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276 jvmtiCapabilities suspendCaps; |
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277 memset(&suspendCaps, 0, sizeof(suspendCaps)); |
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278 suspendCaps.can_suspend = 1; |
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279 if (!NSK_JVMTI_VERIFY( |
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280 NSK_CPP_STUB2(AddCapabilities, jvmti, &suspendCaps))) |
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281 return JNI_ERR; |
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282 } |
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283 |
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284 /* register agent proc and arg */ |
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285 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
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286 return JNI_ERR; |
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287 |
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288 return JNI_OK; |
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289 } |
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290 |
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291 /* ============================================================================= */ |
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292 |
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293 #ifdef __cplusplus |
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294 } |
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295 #endif |