Mercurial > hg > graal-compiler
annotate src/os/aix/vm/threadCritical_aix.cpp @ 18429:79268cfc256a
StackSlot is no longer a VirtualStackSlot (rename ForwardingFrameMapBuilder to DelayedFrameMapBuilder).
author | Josef Eisl <josef.eisl@jku.at> |
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date | Wed, 05 Nov 2014 19:18:35 +0100 |
parents | 71a71b0bc844 |
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1 /* |
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2 * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved. |
17807 | 3 * Copyright 2012, 2014 SAP AG. All rights reserved. |
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * |
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6 * This code is free software; you can redistribute it and/or modify it |
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7 * under the terms of the GNU General Public License version 2 only, as |
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8 * published by the Free Software Foundation. |
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9 * |
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10 * This code is distributed in the hope that it will be useful, but WITHOUT |
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 * version 2 for more details (a copy is included in the LICENSE file that |
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14 * accompanied this code). |
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15 * |
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16 * You should have received a copy of the GNU General Public License version |
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17 * 2 along with this work; if not, write to the Free Software Foundation, |
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 * |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
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23 * |
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24 */ |
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25 |
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26 #include "precompiled.hpp" |
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27 #include "runtime/threadCritical.hpp" |
17807 | 28 #include "runtime/thread.inline.hpp" |
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29 |
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30 // put OS-includes here |
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31 # include <pthread.h> |
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32 |
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33 // |
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34 // See threadCritical.hpp for details of this class. |
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35 // |
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36 |
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37 static pthread_t tc_owner = 0; |
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38 static pthread_mutex_t tc_mutex = PTHREAD_MUTEX_INITIALIZER; |
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39 static int tc_count = 0; |
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40 |
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41 void ThreadCritical::initialize() { |
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42 } |
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43 |
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44 void ThreadCritical::release() { |
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45 } |
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46 |
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47 ThreadCritical::ThreadCritical() { |
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48 pthread_t self = pthread_self(); |
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49 if (self != tc_owner) { |
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50 int ret = pthread_mutex_lock(&tc_mutex); |
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51 guarantee(ret == 0, "fatal error with pthread_mutex_lock()"); |
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52 assert(tc_count == 0, "Lock acquired with illegal reentry count."); |
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53 tc_owner = self; |
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54 } |
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55 tc_count++; |
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56 } |
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57 |
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58 ThreadCritical::~ThreadCritical() { |
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59 assert(tc_owner == pthread_self(), "must have correct owner"); |
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60 assert(tc_count > 0, "must have correct count"); |
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61 |
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62 tc_count--; |
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63 if (tc_count == 0) { |
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64 tc_owner = 0; |
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65 int ret = pthread_mutex_unlock(&tc_mutex); |
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66 guarantee(ret == 0, "fatal error with pthread_mutex_unlock()"); |
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67 } |
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68 } |