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1 //
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2 // Copyright 2007 Sun Microsystems, Inc. All Rights Reserved.
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3 // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 //
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5 // This code is free software; you can redistribute it and/or modify it
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6 // under the terms of the GNU General Public License version 2 only, as
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7 // published by the Free Software Foundation.
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8 //
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9 // This code is distributed in the hope that it will be useful, but WITHOUT
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10 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 // version 2 for more details (a copy is included in the LICENSE file that
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13 // accompanied this code).
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14 //
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15 // You should have received a copy of the GNU General Public License version
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16 // 2 along with this work; if not, write to the Free Software Foundation,
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17 // Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 //
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19 // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 // CA 95054 USA or visit www.sun.com if you need additional information or
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21 // have any questions.
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22 //
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23
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24 #include "incls/_precompiled.incl"
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25 #include "incls/_abstractCompiler.cpp.incl"
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26
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27 void AbstractCompiler::initialize_runtimes(initializer f, volatile int* state) {
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28 if (*state != initialized) {
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29
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30 // We are thread in native here...
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31 CompilerThread* thread = CompilerThread::current();
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32 bool do_initialization = false;
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33 {
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34 ThreadInVMfromNative tv(thread);
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35 MutexLocker only_one(CompileThread_lock, thread);
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36 if ( *state == uninitialized) {
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37 do_initialization = true;
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38 *state = initializing;
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39 } else {
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40 while (*state == initializing ) {
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41 CompileThread_lock->wait();
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42 }
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43 }
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44 }
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45 if (do_initialization) {
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46 // We can not hold any locks here since JVMTI events may call agents
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47
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48 // Compiler(s) run as native
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49
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50 (*f)();
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51
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52 // To in_vm so we can use the lock
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53
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54 ThreadInVMfromNative tv(thread);
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55 MutexLocker only_one(CompileThread_lock, thread);
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56 assert(*state == initializing, "wrong state");
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57 *state = initialized;
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58 CompileThread_lock->notify_all();
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59 }
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60 }
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61 }
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