Mercurial > hg > graal-compiler
annotate src/os/linux/vm/threadCritical_linux.cpp @ 1855:570870354f86
6992267: Bump the HS20 build number to 02
Summary: Update the HS20 build number to 02
Reviewed-by: jcoomes
author | trims |
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date | Thu, 14 Oct 2010 16:05:59 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2001, 2006, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * This code is free software; you can redistribute it and/or modify it | |
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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). | |
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15 * You should have received a copy of the GNU General Public License version | |
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_threadCritical_linux.cpp.incl" | |
27 | |
28 // put OS-includes here | |
29 # include <pthread.h> | |
30 | |
31 // | |
32 // See threadCritical.hpp for details of this class. | |
33 // | |
34 | |
35 static pthread_t tc_owner = 0; | |
36 static pthread_mutex_t tc_mutex = PTHREAD_MUTEX_INITIALIZER; | |
37 static int tc_count = 0; | |
38 | |
39 void ThreadCritical::initialize() { | |
40 } | |
41 | |
42 void ThreadCritical::release() { | |
43 } | |
44 | |
45 ThreadCritical::ThreadCritical() { | |
46 pthread_t self = pthread_self(); | |
47 if (self != tc_owner) { | |
48 int ret = pthread_mutex_lock(&tc_mutex); | |
49 guarantee(ret == 0, "fatal error with pthread_mutex_lock()"); | |
50 assert(tc_count == 0, "Lock acquired with illegal reentry count."); | |
51 tc_owner = self; | |
52 } | |
53 tc_count++; | |
54 } | |
55 | |
56 ThreadCritical::~ThreadCritical() { | |
57 assert(tc_owner == pthread_self(), "must have correct owner"); | |
58 assert(tc_count > 0, "must have correct count"); | |
59 | |
60 tc_count--; | |
61 if (tc_count == 0) { | |
62 tc_owner = 0; | |
63 int ret = pthread_mutex_unlock(&tc_mutex); | |
64 guarantee(ret == 0, "fatal error with pthread_mutex_unlock()"); | |
65 } | |
66 } |