Mercurial > hg > truffle
annotate src/os/solaris/vm/threadCritical_solaris.cpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children | f34d701e952e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2001, 2010, 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 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "runtime/threadCritical.hpp" | |
| 27 #include "thread_solaris.inline.hpp" | |
| 0 | 28 |
| 29 // OS-includes here | |
| 30 #include <thread.h> | |
| 31 #include <synch.h> | |
| 32 | |
| 33 // | |
| 34 // See threadCritical.hpp for details of this class. | |
| 35 // | |
| 36 // For some reason, we don't do locking until the | |
| 37 // os::init() call completes. I'm not sure why this | |
| 38 // is, and have left it that way for now. This should | |
| 39 // be reviewed later. | |
| 40 | |
| 41 static mutex_t global_mut; | |
| 42 static thread_t global_mut_owner = -1; | |
| 43 static int global_mut_count = 0; | |
| 44 static bool initialized = false; | |
| 45 | |
| 46 ThreadCritical::ThreadCritical() { | |
| 47 if (initialized) { | |
| 48 thread_t owner = thr_self(); | |
| 49 if (global_mut_owner != owner) { | |
| 50 if (os::Solaris::mutex_lock(&global_mut)) | |
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51 fatal(err_msg("ThreadCritical::ThreadCritical: mutex_lock failed (%s)", |
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52 strerror(errno))); |
| 0 | 53 assert(global_mut_count == 0, "must have clean count"); |
| 54 assert(global_mut_owner == -1, "must have clean owner"); | |
| 55 } | |
| 56 global_mut_owner = owner; | |
| 57 ++global_mut_count; | |
| 58 } else { | |
| 59 assert (Threads::number_of_threads() == 0, "valid only during initialization"); | |
| 60 } | |
| 61 } | |
| 62 | |
| 63 ThreadCritical::~ThreadCritical() { | |
| 64 if (initialized) { | |
| 65 assert(global_mut_owner == thr_self(), "must have correct owner"); | |
| 66 assert(global_mut_count > 0, "must have correct count"); | |
| 67 --global_mut_count; | |
| 68 if (global_mut_count == 0) { | |
| 69 global_mut_owner = -1; | |
| 70 if (os::Solaris::mutex_unlock(&global_mut)) | |
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71 fatal(err_msg("ThreadCritical::~ThreadCritical: mutex_unlock failed " |
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72 "(%s)", strerror(errno))); |
| 0 | 73 } |
| 74 } else { | |
| 75 assert (Threads::number_of_threads() == 0, "valid only during initialization"); | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 void ThreadCritical::initialize() { | |
| 80 // This method is called at the end of os::init(). Until | |
| 81 // then, we don't do real locking. | |
| 82 initialized = true; | |
| 83 } | |
| 84 | |
| 85 void ThreadCritical::release() { | |
| 86 } |