Mercurial > hg > graal-compiler
annotate agent/src/os/win32/serverLists.hpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
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| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | a61af66fc99e |
| children |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #ifndef _SERVER_LISTS_ | |
| 26 #define _SERVER_LISTS_ | |
| 27 | |
| 28 #include <vector> | |
| 29 #include <winsock2.h> | |
| 30 #include "IOBuf.hpp" | |
| 31 | |
| 32 // | |
| 33 // NOTE: | |
| 34 // | |
| 35 // All of these lists are guarded by the global lock managed by the | |
| 36 // Lists class. Lists::init() must be called at the start of the | |
| 37 // program. | |
| 38 // | |
| 39 | |
| 40 class Lists { | |
| 41 friend class ListsLocker; | |
| 42 public: | |
| 43 static void init(); | |
| 44 private: | |
| 45 static void lock(); | |
| 46 static void unlock(); | |
| 47 static CRITICAL_SECTION crit; | |
| 48 }; | |
| 49 | |
| 50 // Should be allocated on stack. Ensures proper locking/unlocking | |
| 51 // pairing. | |
| 52 class ListsLocker { | |
| 53 public: | |
| 54 ListsLocker(); | |
| 55 ~ListsLocker(); | |
| 56 }; | |
| 57 | |
| 58 // We must keep track of all of the child processes we have forked to | |
| 59 // handle attaching to a target process. This is necessary because we | |
| 60 // allow clients to detach from processes, but the child processes we | |
| 61 // fork must necessarily stay alive for the duration of the target | |
| 62 // application. A subsequent attach operation to the target process | |
| 63 // results in the same child process being reused. For this reason, | |
| 64 // child processes are known to be in one of two states: attached and | |
| 65 // detached. | |
| 66 | |
| 67 class ClientInfo; | |
| 68 | |
| 69 class ChildInfo { | |
| 70 public: | |
| 71 /** The pid of the ChildInfo indicates the process ID of the target | |
| 72 process which the subprocess was created to debug, not the pid | |
| 73 of the subprocess itself. */ | |
| 74 ChildInfo(DWORD pid, HANDLE childProcessHandle, | |
| 75 HANDLE writeToStdinHandle, HANDLE readFromStdoutHandle, | |
| 76 HANDLE auxHandle1, HANDLE auxHandle2); | |
| 77 | |
| 78 DWORD getPid(); | |
| 79 HANDLE getChildProcessHandle(); | |
| 80 HANDLE getWriteToStdinHandle(); | |
| 81 HANDLE getReadFromStdoutHandle(); | |
| 82 | |
| 83 /** Set the client which is currently attached to the target process | |
| 84 via this child process. Set this to NULL to indicate that the | |
| 85 child process is ready to accept another attachment. */ | |
| 86 void setClient(ClientInfo* clientInfo); | |
| 87 | |
| 88 ClientInfo* getClient(); | |
| 89 | |
| 90 /** This is NOT automatically called in the destructor */ | |
| 91 void closeAll(); | |
| 92 | |
| 93 private: | |
| 94 DWORD pid; | |
| 95 HANDLE childProcessHandle; | |
| 96 HANDLE writeToStdinHandle; | |
| 97 HANDLE readFromStdoutHandle; | |
| 98 HANDLE auxHandle1; | |
| 99 HANDLE auxHandle2; | |
| 100 ClientInfo* client; | |
| 101 }; | |
| 102 | |
| 103 // We keep track of a list of child debugger processes, each of which | |
| 104 // is responsible for debugging a certain target process. These | |
| 105 // debugger processes can serve multiple clients during their | |
| 106 // lifetime. When a client detaches from a given process or tells the | |
| 107 // debugger to "exit", the debug server is notified that the child | |
| 108 // process is once again available to accept connections from clients. | |
| 109 | |
| 110 class ChildList { | |
| 111 private: | |
| 112 typedef std::vector<ChildInfo*> ChildInfoList; | |
| 113 | |
| 114 public: | |
| 115 ChildList(); | |
| 116 ~ChildList(); | |
| 117 | |
| 118 void addChild(ChildInfo*); | |
| 119 | |
| 120 /** Removes and returns the ChildInfo* associated with the given | |
| 121 child process handle. */ | |
| 122 ChildInfo* removeChild(HANDLE childProcessHandle); | |
| 123 | |
| 124 /** Removes the given ChildInfo. */ | |
| 125 void removeChild(ChildInfo* info); | |
| 126 | |
| 127 /** Return the ChildInfo* associated with a given process ID without | |
| 128 removing it from the list. */ | |
| 129 ChildInfo* getChildByPid(DWORD pid); | |
| 130 | |
| 131 /** Iteration support */ | |
| 132 int size(); | |
| 133 | |
| 134 /** Iteration support */ | |
| 135 ChildInfo* getChildByIndex(int index); | |
| 136 | |
| 137 private: | |
| 138 ChildInfoList childList; | |
| 139 }; | |
| 140 | |
| 141 // We also keep a list of clients whose requests we are responsible | |
| 142 // for serving. Clients can attach and detach from child processes. | |
| 143 | |
| 144 class ClientInfo { | |
| 145 public: | |
| 146 ClientInfo(SOCKET dataSocket); | |
| 147 ~ClientInfo(); | |
| 148 | |
| 149 SOCKET getDataSocket(); | |
| 150 /** Gets an IOBuf configured for the data socket, which should be | |
| 151 used for all communication with the client. */ | |
| 152 IOBuf* getIOBuf(); | |
| 153 | |
| 154 /** Set the information for the process to which this client is | |
| 155 attached. Set this to NULL to indicate that the client is not | |
| 156 currently attached to any target process. */ | |
| 157 void setTarget(ChildInfo* childInfo); | |
| 158 | |
| 159 /** Get the information for the process to which this client is | |
| 160 currently attached, or NULL if none. */ | |
| 161 ChildInfo* getTarget(); | |
| 162 | |
| 163 /** Close down the socket connection to this client. This is NOT | |
| 164 automatically called by the destructor. */ | |
| 165 void closeAll(); | |
| 166 | |
| 167 private: | |
| 168 SOCKET dataSocket; | |
| 169 IOBuf* buf; | |
| 170 ChildInfo* target; | |
| 171 }; | |
| 172 | |
| 173 class ClientList { | |
| 174 private: | |
| 175 typedef std::vector<ClientInfo*> ClientInfoList; | |
| 176 | |
| 177 public: | |
| 178 ClientList(); | |
| 179 ~ClientList(); | |
| 180 | |
| 181 /** Adds a client to the list. */ | |
| 182 void addClient(ClientInfo* info); | |
| 183 | |
| 184 /** Check to see whether the parent socket of any of the ClientInfo | |
| 185 objects is readable in the given fd_set. If so, returns TRUE and | |
| 186 sets the given ClientInfo* (a non-NULL pointer to which must be | |
| 187 given) appropriately. */ | |
| 188 bool isAnyDataSocketSet(fd_set* fds, ClientInfo** info); | |
| 189 | |
| 190 /** Removes a client from the list. User is responsible for deleting | |
| 191 the ClientInfo* using operator delete. */ | |
| 192 void removeClient(ClientInfo* client); | |
| 193 | |
| 194 /** Iteration support. */ | |
| 195 int size(); | |
| 196 | |
| 197 /** Iteration support. */ | |
| 198 ClientInfo* get(int num); | |
| 199 | |
| 200 private: | |
| 201 ClientInfoList clientList; | |
| 202 }; | |
| 203 | |
| 204 #endif // #defined _SERVER_LISTS_ |