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comparison src/os/linux/vm/attachListener_linux.cpp @ 11139:2e8f19c2feef

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7162400: Intermittent java.io.IOException: Bad file number during HotSpotVirtualMachine.executeCommand Summary: Intermittent java.io.IOException: Bad file number during HotSpotVirtualMachine.executeCommand Reviewed-by: dcubed, dholmes, sspitsyn, mgerdin, ctornqvi, dsamersoff
author allwin
date Fri, 12 Jul 2013 18:43:27 +0200
parents e95fc50106cf
children
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11136:dbc0b5dc08f5 11139:2e8f19c2feef
1 /* 1 /*
2 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
430 thread->check_and_wait_while_suspended(); 430 thread->check_and_wait_while_suspended();
431 431
432 return op; 432 return op;
433 } 433 }
434 434
435
436 // Performs initialization at vm startup
437 // For Linux we remove any stale .java_pid file which could cause
438 // an attaching process to think we are ready to receive on the
439 // domain socket before we are properly initialized
440
441 void AttachListener::vm_start() {
442 char fn[UNIX_PATH_MAX];
443 struct stat64 st;
444 int ret;
445
446 int n = snprintf(fn, UNIX_PATH_MAX, "%s/.java_pid%d",
447 os::get_temp_directory(), os::current_process_id());
448 assert(n < (int)UNIX_PATH_MAX, "java_pid file name buffer overflow");
449
450 RESTARTABLE(::stat64(fn, &st), ret);
451 if (ret == 0) {
452 ret = ::unlink(fn);
453 if (ret == -1) {
454 debug_only(warning("failed to remove stale attach pid file at %s", fn));
455 }
456 }
457 }
458
435 int AttachListener::pd_init() { 459 int AttachListener::pd_init() {
436 JavaThread* thread = JavaThread::current(); 460 JavaThread* thread = JavaThread::current();
437 ThreadBlockInVM tbivm(thread); 461 ThreadBlockInVM tbivm(thread);
438 462
439 thread->set_suspend_equivalent(); 463 thread->set_suspend_equivalent();