truffle: src/os/aix/vm/attachListener

annotate src/os/aix/vm/attachListener_aix.cpp @ 21947:9f70fc90169d

Truffle: remove expensive assertion

author	Andreas Woess <andreas.woess@oracle.com>
date	Wed, 17 Jun 2015 04:09:30 +0200
parents	666e6ce3976c
children

rev	line source
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	1 /*
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	3 * Copyright 2012, 2013 SAP AG. All rights reserved.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	5 *
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	6 * This code is free software; you can redistribute it and/or modify it
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	7 * under the terms of the GNU General Public License version 2 only, as
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	8 * published by the Free Software Foundation.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	9 *
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	10 * This code is distributed in the hope that it will be useful, but WITHOUT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	13 * version 2 for more details (a copy is included in the LICENSE file that
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	14 * accompanied this code).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	15 *
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	16 * You should have received a copy of the GNU General Public License version
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	17 * 2 along with this work; if not, write to the Free Software Foundation,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	19 *
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	21 * or visit www.oracle.com if you need additional information or have any
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	22 * questions.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	23 *
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	24 */
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	25
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	26 #include "precompiled.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	27 #include "runtime/interfaceSupport.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	28 #include "runtime/os.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	29 #include "services/attachListener.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	30 #include "services/dtraceAttacher.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	31
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	32 #include <unistd.h>
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	33 #include <signal.h>
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	34 #include <sys/types.h>
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	35 #include <sys/socket.h>
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	36 #include <sys/un.h>
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	37 #include <sys/stat.h>
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	38
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	39 #ifndef UNIX_PATH_MAX
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	40 #define UNIX_PATH_MAX sizeof(((struct sockaddr_un *)0)->sun_path)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	41 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	42
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	43 // The attach mechanism on Linux uses a UNIX domain socket. An attach listener
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	44 // thread is created at startup or is created on-demand via a signal from
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	45 // the client tool. The attach listener creates a socket and binds it to a file
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	46 // in the filesystem. The attach listener then acts as a simple (single-
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	47 // threaded) server - it waits for a client to connect, reads the request,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	48 // executes it, and returns the response to the client via the socket
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	49 // connection.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	50 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	51 // As the socket is a UNIX domain socket it means that only clients on the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	52 // local machine can connect. In addition there are two other aspects to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	53 // the security:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	54 // 1. The well known file that the socket is bound to has permission 400
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	55 // 2. When a client connect, the SO_PEERID socket option is used to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	56 // obtain the credentials of client. We check that the effective uid
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	57 // of the client matches this process.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	58
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	59 // forward reference
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	60 class AixAttachOperation;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	61
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	62 class AixAttachListener: AllStatic {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	63 private:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	64 // the path to which we bind the UNIX domain socket
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	65 static char _path[UNIX_PATH_MAX];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	66 static bool _has_path;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	67 // Shutdown marker to prevent accept blocking during clean-up.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	68 static bool _shutdown;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	69
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	70 // the file descriptor for the listening socket
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	71 static int _listener;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	72
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	73 static void set_path(char* path) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	74 if (path == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	75 _has_path = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	76 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	77 strncpy(_path, path, UNIX_PATH_MAX);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	78 _path[UNIX_PATH_MAX-1] = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	79 _has_path = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	80 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	81 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	82
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	83 static void set_listener(int s) { _listener = s; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	84
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	85 // reads a request from the given connected socket
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	86 static AixAttachOperation* read_request(int s);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	87
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	88 public:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	89 enum {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	90 ATTACH_PROTOCOL_VER = 1 // protocol version
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	91 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	92 enum {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	93 ATTACH_ERROR_BADVERSION = 101 // error codes
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	94 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	95
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	96 // initialize the listener, returns 0 if okay
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	97 static int init();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	98
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	99 static char* path() { return _path; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	100 static bool has_path() { return _has_path; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	101 static int listener() { return _listener; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	102 // Shutdown marker to prevent accept blocking during clean-up
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	103 static void set_shutdown(bool shutdown) { _shutdown = shutdown; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	104 static bool is_shutdown() { return _shutdown; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	105
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	106 // write the given buffer to a socket
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	107 static int write_fully(int s, char* buf, int len);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	108
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	109 static AixAttachOperation* dequeue();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	110 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	111
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	112 class AixAttachOperation: public AttachOperation {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	113 private:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	114 // the connection to the client
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	115 int _socket;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	116
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	117 public:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	118 void complete(jint res, bufferedStream* st);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	119
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	120 void set_socket(int s) { _socket = s; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	121 int socket() const { return _socket; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	122
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	123 AixAttachOperation(char* name) : AttachOperation(name) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	124 set_socket(-1);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	125 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	126 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	127
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	128 // statics
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	129 char AixAttachListener::_path[UNIX_PATH_MAX];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	130 bool AixAttachListener::_has_path;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	131 int AixAttachListener::_listener = -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	132 // Shutdown marker to prevent accept blocking during clean-up
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	133 bool AixAttachListener::_shutdown = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	134
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	135 // Supporting class to help split a buffer into individual components
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	136 class ArgumentIterator : public StackObj {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	137 private:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	138 char* _pos;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	139 char* _end;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	140 public:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	141 ArgumentIterator(char* arg_buffer, size_t arg_size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	142 _pos = arg_buffer;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	143 _end = _pos + arg_size - 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	144 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	145 char* next() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	146 if (*_pos == '\0') {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	147 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	148 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	149 char* res = _pos;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	150 char* next_pos = strchr(_pos, '\0');
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	151 if (next_pos < _end) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	152 next_pos++;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	153 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	154 _pos = next_pos;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	155 return res;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	156 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	157 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	158
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	159 // On AIX if sockets block until all data has been transmitted
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	160 // successfully in some communication domains a socket "close" may
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	161 // never complete. We have to take care that after the socket shutdown
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	162 // the listener never enters accept state.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	163
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	164 // atexit hook to stop listener and unlink the file that it is
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	165 // bound too.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	166
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	167 // Some modifications to the listener logic to prevent deadlocks on exit.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	168 // 1. We Shutdown the socket here instead. AixAttachOperation::complete() is not the right place
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	169 // since more than one agent in a sequence in JPLIS live tests wouldn't work (Listener thread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	170 // would be dead after the first operation completion).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	171 // 2. close(s) may never return if the listener thread is in socket accept(). Unlinking the file
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	172 // should be sufficient for cleanup.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	173 extern "C" {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	174 static void listener_cleanup() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	175 static int cleanup_done;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	176 if (!cleanup_done) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	177 cleanup_done = 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	178 AixAttachListener::set_shutdown(true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	179 int s = AixAttachListener::listener();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	180 if (s != -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	181 ::shutdown(s, 2);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	182 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	183 if (AixAttachListener::has_path()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	184 ::unlink(AixAttachListener::path());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	185 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	186 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	187 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	188 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	189
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	190 // Initialization - create a listener socket and bind it to a file
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	191
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	192 int AixAttachListener::init() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	193 char path[UNIX_PATH_MAX]; // socket file
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	194 char initial_path[UNIX_PATH_MAX]; // socket file during setup
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	195 int listener; // listener socket (file descriptor)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	196
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	197 // register function to cleanup
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	198 ::atexit(listener_cleanup);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	199
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	200 int n = snprintf(path, UNIX_PATH_MAX, "%s/.java_pid%d",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	201 os::get_temp_directory(), os::current_process_id());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	202 if (n < (int)UNIX_PATH_MAX) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	203 n = snprintf(initial_path, UNIX_PATH_MAX, "%s.tmp", path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	204 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	205 if (n >= (int)UNIX_PATH_MAX) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	206 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	207 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	208
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	209 // create the listener socket
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	210 listener = ::socket(PF_UNIX, SOCK_STREAM, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	211 if (listener == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	212 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	213 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	214
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	215 // bind socket
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	216 struct sockaddr_un addr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	217 addr.sun_family = AF_UNIX;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	218 strcpy(addr.sun_path, initial_path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	219 ::unlink(initial_path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	220 // We must call bind with the actual socketaddr length. This is obligatory for AS400.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	221 int res = ::bind(listener, (struct sockaddr*)&addr, SUN_LEN(&addr));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	222 if (res == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	223 RESTARTABLE(::close(listener), res);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	224 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	225 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	226
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	227 // put in listen mode, set permissions, and rename into place
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	228 res = ::listen(listener, 5);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	229 if (res == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	230 RESTARTABLE(::chmod(initial_path, (S_IREAD\|S_IWRITE) & ~(S_IRGRP\|S_IWGRP\|S_IROTH\|S_IWOTH)), res);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	231 if (res == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	232 res = ::rename(initial_path, path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	233 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	234 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	235 if (res == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	236 RESTARTABLE(::close(listener), res);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	237 ::unlink(initial_path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	238 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	239 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	240 set_path(path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	241 set_listener(listener);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	242 set_shutdown(false);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	243
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	244 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	245 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	246
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	247 // Given a socket that is connected to a peer we read the request and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	248 // create an AttachOperation. As the socket is blocking there is potential
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	249 // for a denial-of-service if the peer does not response. However this happens
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	250 // after the peer credentials have been checked and in the worst case it just
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	251 // means that the attach listener thread is blocked.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	252 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	253 AixAttachOperation* AixAttachListener::read_request(int s) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	254 char ver_str[8];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	255 sprintf(ver_str, "%d", ATTACH_PROTOCOL_VER);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	256
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	257 // The request is a sequence of strings so we first figure out the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	258 // expected count and the maximum possible length of the request.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	259 // The request is:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	260 // <ver>0<cmd>0<arg>0<arg>0<arg>0
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	261 // where <ver> is the protocol version (1), <cmd> is the command
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	262 // name ("load", "datadump", ...), and <arg> is an argument
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	263 int expected_str_count = 2 + AttachOperation::arg_count_max;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	264 const int max_len = (sizeof(ver_str) + 1) + (AttachOperation::name_length_max + 1) +
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	265 AttachOperation::arg_count_max*(AttachOperation::arg_length_max + 1);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	266
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	267 char buf[max_len];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	268 int str_count = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	269
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	270 // Read until all (expected) strings have been read, the buffer is
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	271 // full, or EOF.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	272
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	273 int off = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	274 int left = max_len;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	275
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	276 do {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	277 int n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	278 // Don't block on interrupts because this will
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	279 // hang in the clean-up when shutting down.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	280 n = read(s, buf+off, left);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	281 if (n == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	282 return NULL; // reset by peer or other error
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	283 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	284 if (n == 0) { // end of file reached
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	285 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	286 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	287 for (int i=0; i<n; i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	288 if (buf[off+i] == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	289 // EOS found
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	290 str_count++;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	291
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	292 // The first string is <ver> so check it now to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	293 // check for protocol mis-match
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	294 if (str_count == 1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	295 if ((strlen(buf) != strlen(ver_str)) \|\|
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	296 (atoi(buf) != ATTACH_PROTOCOL_VER)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	297 char msg[32];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	298 sprintf(msg, "%d\n", ATTACH_ERROR_BADVERSION);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	299 write_fully(s, msg, strlen(msg));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	300 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	301 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	302 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	303 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	304 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	305 off += n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	306 left -= n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	307 } while (left > 0 && str_count < expected_str_count);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	308
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	309 if (str_count != expected_str_count) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	310 return NULL; // incomplete request
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	311 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	312
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	313 // parse request
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	314
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	315 ArgumentIterator args(buf, (max_len)-left);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	316
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	317 // version already checked
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	318 char* v = args.next();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	319
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	320 char* name = args.next();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	321 if (name == NULL \|\| strlen(name) > AttachOperation::name_length_max) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	322 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	323 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	324
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	325 AixAttachOperation* op = new AixAttachOperation(name);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	326
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	327 for (int i=0; i<AttachOperation::arg_count_max; i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	328 char* arg = args.next();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	329 if (arg == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	330 op->set_arg(i, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	331 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	332 if (strlen(arg) > AttachOperation::arg_length_max) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	333 delete op;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	334 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	335 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	336 op->set_arg(i, arg);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	337 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	338 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	339
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	340 op->set_socket(s);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	341 return op;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	342 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	343
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	344
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	345 // Dequeue an operation
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	346 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	347 // In the Linux implementation there is only a single operation and clients
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	348 // cannot queue commands (except at the socket level).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	349 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	350 AixAttachOperation* AixAttachListener::dequeue() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	351 for (;;) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	352 int s;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	353
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	354 // wait for client to connect
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	355 struct sockaddr addr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	356 socklen_t len = sizeof(addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	357 memset(&addr, 0, len);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	358 // We must prevent accept blocking on the socket if it has been shut down.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	359 // Therefore we allow interrups and check whether we have been shut down already.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	360 if (AixAttachListener::is_shutdown()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	361 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	362 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	363 s=::accept(listener(), &addr, &len);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	364 if (s == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	365 return NULL; // log a warning?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	366 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	367
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	368 // Added timeouts for read and write. If we get no request within the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	369 // next AttachListenerTimeout milliseconds we just finish the connection.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	370 struct timeval tv;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	371 tv.tv_sec = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	372 tv.tv_usec = AttachListenerTimeout * 1000;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	373 ::setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, (char*)&tv, sizeof(tv));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	374 ::setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, (char*)&tv, sizeof(tv));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	375
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	376 // get the credentials of the peer and check the effective uid/guid
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	377 // - check with jeff on this.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	378 struct peercred_struct cred_info;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	379 socklen_t optlen = sizeof(cred_info);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	380 if (::getsockopt(s, SOL_SOCKET, SO_PEERID, (void*)&cred_info, &optlen) == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	381 int res;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	382 RESTARTABLE(::close(s), res);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	383 continue;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	384 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	385 uid_t euid = geteuid();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	386 gid_t egid = getegid();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	387
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	388 if (cred_info.euid != euid \|\| cred_info.egid != egid) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	389 int res;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	390 RESTARTABLE(::close(s), res);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	391 continue;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	392 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	393
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	394 // peer credential look okay so we read the request
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	395 AixAttachOperation* op = read_request(s);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	396 if (op == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	397 int res;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	398 RESTARTABLE(::close(s), res);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	399 continue;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	400 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	401 return op;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	402 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	403 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	404 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	405
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	406 // write the given buffer to the socket
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	407 int AixAttachListener::write_fully(int s, char* buf, int len) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	408 do {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	409 int n = ::write(s, buf, len);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	410 if (n == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	411 if (errno != EINTR) return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	412 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	413 buf += n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	414 len -= n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	415 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	416 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	417 while (len > 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	418 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	419 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	420
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	421 // Complete an operation by sending the operation result and any result
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	422 // output to the client. At this time the socket is in blocking mode so
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	423 // potentially we can block if there is a lot of data and the client is
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	424 // non-responsive. For most operations this is a non-issue because the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	425 // default send buffer is sufficient to buffer everything. In the future
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	426 // if there are operations that involves a very big reply then it the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	427 // socket could be made non-blocking and a timeout could be used.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	428
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	429 void AixAttachOperation::complete(jint result, bufferedStream* st) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	430 JavaThread* thread = JavaThread::current();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	431 ThreadBlockInVM tbivm(thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	432
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	433 thread->set_suspend_equivalent();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	434 // cleared by handle_special_suspend_equivalent_condition() or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	435 // java_suspend_self() via check_and_wait_while_suspended()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	436
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	437 // write operation result
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	438 char msg[32];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	439 sprintf(msg, "%d\n", result);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	440 int rc = AixAttachListener::write_fully(this->socket(), msg, strlen(msg));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	441
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	442 // write any result data
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	443 if (rc == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	444 // Shutdown the socket in the cleanup function to enable more than
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	445 // one agent attach in a sequence (see comments to listener_cleanup()).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	446 AixAttachListener::write_fully(this->socket(), (char*) st->base(), st->size());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	447 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	448
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	449 // done
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	450 RESTARTABLE(::close(this->socket()), rc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	451
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	452 // were we externally suspended while we were waiting?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	453 thread->check_and_wait_while_suspended();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	454
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	455 delete this;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	456 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	457
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	458
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	459 // AttachListener functions
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	460
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	461 AttachOperation* AttachListener::dequeue() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	462 JavaThread* thread = JavaThread::current();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	463 ThreadBlockInVM tbivm(thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	464
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	465 thread->set_suspend_equivalent();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	466 // cleared by handle_special_suspend_equivalent_condition() or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	467 // java_suspend_self() via check_and_wait_while_suspended()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	468
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	469 AttachOperation* op = AixAttachListener::dequeue();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	470
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	471 // were we externally suspended while we were waiting?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	472 thread->check_and_wait_while_suspended();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	473
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	474 return op;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	475 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	476
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	477 // Performs initialization at vm startup
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	478 // For AIX we remove any stale .java_pid file which could cause
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	479 // an attaching process to think we are ready to receive on the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	480 // domain socket before we are properly initialized
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	481
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	482 void AttachListener::vm_start() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	483 char fn[UNIX_PATH_MAX];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	484 struct stat64 st;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	485 int ret;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	486
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	487 int n = snprintf(fn, UNIX_PATH_MAX, "%s/.java_pid%d",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	488 os::get_temp_directory(), os::current_process_id());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	489 assert(n < (int)UNIX_PATH_MAX, "java_pid file name buffer overflow");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	490
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	491 RESTARTABLE(::stat64(fn, &st), ret);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	492 if (ret == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	493 ret = ::unlink(fn);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	494 if (ret == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	495 debug_only(warning("failed to remove stale attach pid file at %s", fn));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	496 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	497 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	498 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	499
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	500 int AttachListener::pd_init() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	501 JavaThread* thread = JavaThread::current();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	502 ThreadBlockInVM tbivm(thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	503
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	504 thread->set_suspend_equivalent();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	505 // cleared by handle_special_suspend_equivalent_condition() or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	506 // java_suspend_self() via check_and_wait_while_suspended()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	507
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	508 int ret_code = AixAttachListener::init();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	509
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	510 // were we externally suspended while we were waiting?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	511 thread->check_and_wait_while_suspended();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	512
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	513 return ret_code;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	514 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	515
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	516 // Attach Listener is started lazily except in the case when
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	517 // +ReduseSignalUsage is used
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	518 bool AttachListener::init_at_startup() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	519 if (ReduceSignalUsage) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	520 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	521 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	522 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	523 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	524 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	525
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	526 // If the file .attach_pid<pid> exists in the working directory
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	527 // or /tmp then this is the trigger to start the attach mechanism
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	528 bool AttachListener::is_init_trigger() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	529 if (init_at_startup() \|\| is_initialized()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	530 return false; // initialized at startup or already initialized
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	531 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	532 char fn[PATH_MAX+1];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	533 sprintf(fn, ".attach_pid%d", os::current_process_id());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	534 int ret;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	535 struct stat64 st;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	536 RESTARTABLE(::stat64(fn, &st), ret);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	537 if (ret == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	538 snprintf(fn, sizeof(fn), "%s/.attach_pid%d",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	539 os::get_temp_directory(), os::current_process_id());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	540 RESTARTABLE(::stat64(fn, &st), ret);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	541 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	542 if (ret == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	543 // simple check to avoid starting the attach mechanism when
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	544 // a bogus user creates the file
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	545 if (st.st_uid == geteuid()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	546 init();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	547 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	548 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	549 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	550 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	551 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	552
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	553 // if VM aborts then remove listener
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	554 void AttachListener::abort() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	555 listener_cleanup();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	556 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	557
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	558 void AttachListener::pd_data_dump() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	559 os::signal_notify(SIGQUIT);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	560 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	561
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	562 AttachOperationFunctionInfo* AttachListener::pd_find_operation(const char* n) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	563 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	564 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	565
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	566 jint AttachListener::pd_set_flag(AttachOperation* op, outputStream* out) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	567 out->print_cr("flag '%s' cannot be changed", op->arg(0));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	568 return JNI_ERR;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	569 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	570
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	571 void AttachListener::pd_detachall() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	572 // Cleanup server socket to detach clients.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	573 listener_cleanup();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	574 }

Mercurial > hg > truffle

annotate src/os/aix/vm/attachListener_aix.cpp @ 21947:9f70fc90169d