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提交 a2f52638 authored 作者: Thomas Mueller's avatar Thomas Mueller
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h2/src/docsrc/html/license.html
浏览文件 @ a2f52638
......@@ -66,12 +66,12 @@ An original copy of the license agreement can be found at: http://www.h2database
<h2 id="mpl2">Mozilla Public License Version 2.0</h2>
<h3 id="definitions">1. Definitions</h3>
<h3>1. Definitions</h3>
<p>1.1. "Contributor" means each individual or legal entity that creates, contributes to the creation of, or owns Covered Software.</p>
<p>1.2. "Contributor Version" means the combination of the Contributions of others (if any) used by a Contributor and that particular Contributor’s Contribution.</p>
<p>1.2. "Contributor Version" means the combination of the Contributions of others (if any) used by a Contributor and that particular Contributor's Contribution.</p>
<p>1.3. "Contribution" means Covered Software of a particular Contributor.</p>
<p>1.4. "Covered Software" means Source Code Form to which the initial Contributor has attached the notice in Exhibit A, the Executable Form of such Source Code Form, and Modifications of such Source Code Form, in each case including portions thereof.</p>
<p>1.5. "Incompatible With Secondary Licenses" means
<p>1.5. "Incompatible With Secondary Licenses" means</p>
<p>a. that the initial Contributor has attached the notice described in Exhibit B to the Covered Software; or</p>
<p>b. that the Covered Software was made available under the terms of version 1.1 or earlier of the License, but not also under the terms of a Secondary License.</p>
<p>1.6. "Executable Form" means any form of the work other than Source Code Form.</p>
......@@ -86,77 +86,77 @@ An original copy of the license agreement can be found at: http://www.h2database
<p>1.13. "Source Code Form" means the form of the work preferred for making modifications.</p>
<p>1.14. "You" (or "Your") means an individual or a legal entity exercising rights under this License. For legal entities, "You" includes any entity that controls, is controlled by, or is under common control with You. For purposes of this definition, "control" means (a) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (b) ownership of more than fifty percent (50%) of the outstanding shares or beneficial ownership of such entity.</p>
<h3 id="license-grants-and-conditions">2. License Grants and Conditions</h3>
<h4 id="grants">2.1. Grants</h4>
<h3>2. License Grants and Conditions</h3>
<h4>2.1. Grants</h4>
<p>Each Contributor hereby grants You a world-wide, royalty-free, non-exclusive license:</p>
<ol type="a">
<li><p>under intellectual property rights (other than patent or trademark) Licensable by such Contributor to use, reproduce, make available, modify, display, perform, distribute, and otherwise exploit its Contributions, either on an unmodified basis, with Modifications, or as part of a Larger Work; and</p></li>
<li><p>under Patent Claims of such Contributor to make, use, sell, offer for sale, have made, import, and otherwise transfer either its Contributions or its Contributor Version.</p></li>
</ol>
<h4 id="effective-date">2.2. Effective Date</h4>
<h4>2.2. Effective Date</h4>
<p>The licenses granted in Section&nbsp;2.1 with respect to any Contribution become effective for each Contribution on the date the Contributor first distributes such Contribution.</p>
<h4 id="limitations-on-grant-scope">2.3. Limitations on Grant Scope</h4>
<h4>2.3. Limitations on Grant Scope</h4>
<p>The licenses granted in this Section&nbsp;2 are the only rights granted under this License. No additional rights or licenses will be implied from the distribution or licensing of Covered Software under this License. Notwithstanding Section&nbsp;2.1(b) above, no patent license is granted by a Contributor:</p>
<ol type="a">
<li><p>for any code that a Contributor has removed from Covered Software; or</p></li>
<li><p>for infringements caused by: (i) Your and any other third party’s modifications of Covered Software, or (ii) the combination of its Contributions with other software (except as part of its Contributor Version); or</p></li>
<li><p>for infringements caused by: (i) Your and any other third party's modifications of Covered Software, or (ii) the combination of its Contributions with other software (except as part of its Contributor Version); or</p></li>
<li><p>under Patent Claims infringed by Covered Software in the absence of its Contributions.</p></li>
</ol>
<p>This License does not grant any rights in the trademarks, service marks, or logos of any Contributor (except as may be necessary to comply with the notice requirements in Section&nbsp;3.4).</p>
<h4 id="subsequent-licenses">2.4. Subsequent Licenses</h4>
<h4>2.4. Subsequent Licenses</h4>
<p>No Contributor makes additional grants as a result of Your choice to distribute the Covered Software under a subsequent version of this License (see Section&nbsp;10.2) or under the terms of a Secondary License (if permitted under the terms of Section&nbsp;3.3).</p>
<h4 id="representation">2.5. Representation</h4>
<h4>2.5. Representation</h4>
<p>Each Contributor represents that the Contributor believes its Contributions are its original creation(s) or it has sufficient rights to grant the rights to its Contributions conveyed by this License.</p>
<h4 id="fair-use">2.6. Fair Use</h4>
<h4>2.6. Fair Use</h4>
<p>This License is not intended to limit any rights You have under applicable copyright doctrines of fair use, fair dealing, or other equivalents.</p>
<h4 id="conditions">2.7. Conditions</h4>
<h4>2.7. Conditions</h4>
<p>Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in Section&nbsp;2.1.</p>
<h3 id="responsibilities">3. Responsibilities</h3>
<h4 id="distribution-of-source-form">3.1. Distribution of Source Form</h4>
<p>All distribution of Covered Software in Source Code Form, including any Modifications that You create or to which You contribute, must be under the terms of this License. You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License, and how they can obtain a copy of this License. You may not attempt to alter or restrict the recipients’ rights in the Source Code Form.</p>
<h4 id="distribution-of-executable-form">3.2. Distribution of Executable Form</h4>
<h3>3. Responsibilities</h3>
<h4>3.1. Distribution of Source Form</h4>
<p>All distribution of Covered Software in Source Code Form, including any Modifications that You create or to which You contribute, must be under the terms of this License. You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License, and how they can obtain a copy of this License. You may not attempt to alter or restrict the recipients' rights in the Source Code Form.</p>
<h4>3.2. Distribution of Executable Form</h4>
<p>If You distribute Covered Software in Executable Form then:</p>
<ol type="a">
<li><p>such Covered Software must also be made available in Source Code Form, as described in Section&nbsp;3.1, and You must inform recipients of the Executable Form how they can obtain a copy of such Source Code Form by reasonable means in a timely manner, at a charge no more than the cost of distribution to the recipient; and</p></li>
<li><p>You may distribute such Executable Form under the terms of this License, or sublicense it under different terms, provided that the license for the Executable Form does not attempt to limit or alter the recipients’ rights in the Source Code Form under this License.</p></li>
<li><p>You may distribute such Executable Form under the terms of this License, or sublicense it under different terms, provided that the license for the Executable Form does not attempt to limit or alter the recipients' rights in the Source Code Form under this License.</p></li>
</ol>
<h4 id="distribution-of-a-larger-work">3.3. Distribution of a Larger Work</h4>
<h4>3.3. Distribution of a Larger Work</h4>
<p>You may create and distribute a Larger Work under terms of Your choice, provided that You also comply with the requirements of this License for the Covered Software. If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s), so that the recipient of the Larger Work may, at their option, further distribute the Covered Software under the terms of either this License or such Secondary License(s).</p>
<h4 id="notices">3.4. Notices</h4>
<h4>3.4. Notices</h4>
<p>You may not remove or alter the substance of any license notices (including copyright notices, patent notices, disclaimers of warranty, or limitations of liability) contained within the Source Code Form of the Covered Software, except that You may alter any license notices to the extent required to remedy known factual inaccuracies.</p>
<h4 id="application-of-additional-terms">3.5. Application of Additional Terms</h4>
<h4>3.5. Application of Additional Terms</h4>
<p>You may choose to offer, and to charge a fee for, warranty, support, indemnity or liability obligations to one or more recipients of Covered Software. However, You may do so only on Your own behalf, and not on behalf of any Contributor. You must make it absolutely clear that any such warranty, support, indemnity, or liability obligation is offered by You alone, and You hereby agree to indemnify every Contributor for any liability incurred by such Contributor as a result of warranty, support, indemnity or liability terms You offer. You may include additional disclaimers of warranty and limitations of liability specific to any jurisdiction.</p>
<h3 id="inability-to-comply-due-to-statute-or-regulation">4. Inability to Comply Due to Statute or Regulation</h3>
<h3>4. Inability to Comply Due to Statute or Regulation</h3>
<p>If it is impossible for You to comply with any of the terms of this License with respect to some or all of the Covered Software due to statute, judicial order, or regulation then You must: (a) comply with the terms of this License to the maximum extent possible; and (b) describe the limitations and the code they affect. Such description must be placed in a text file included with all distributions of the Covered Software under this License. Except to the extent prohibited by statute or regulation, such description must be sufficiently detailed for a recipient of ordinary skill to be able to understand it.</p>
<h3 id="termination">5. Termination</h3>
<h3>5. Termination</h3>
<p>5.1. The rights granted under this License will terminate automatically if You fail to comply with any of its terms. However, if You become compliant, then the rights granted under this License from a particular Contributor are reinstated (a) provisionally, unless and until such Contributor explicitly and finally terminates Your grants, and (b) on an ongoing basis, if such Contributor fails to notify You of the non-compliance by some reasonable means prior to 60 days after You have come back into compliance. Moreover, Your grants from a particular Contributor are reinstated on an ongoing basis if such Contributor notifies You of the non-compliance by some reasonable means, this is the first time You have received notice of non-compliance with this License from such Contributor, and You become compliant prior to 30 days after Your receipt of the notice.</p>
<p>5.2. If You initiate litigation against any entity by asserting a patent infringement claim (excluding declaratory judgment actions, counter-claims, and cross-claims) alleging that a Contributor Version directly or indirectly infringes any patent, then the rights granted to You by any and all Contributors for the Covered Software under Section&nbsp;2.1 of this License shall terminate.</p>
<p>5.3. In the event of termination under Sections&nbsp;5.1 or 5.2 above, all end user license agreements (excluding distributors and resellers) which have been validly granted by You or Your distributors under this License prior to termination shall survive termination.</p>
<h3 id="disclaimer-of-warranty">6. Disclaimer of Warranty</h3>
<h3>6. Disclaimer of Warranty</h3>
<p>Covered Software is provided under this License on an "as is" basis, without warranty of any kind, either expressed, implied, or statutory, including, without limitation, warranties that the Covered Software is free of defects, merchantable, fit for a particular purpose or non-infringing. The entire risk as to the quality and performance of the Covered Software is with You. Should any Covered Software prove defective in any respect, You (not any Contributor) assume the cost of any necessary servicing, repair, or correction. This disclaimer of warranty constitutes an essential part of this License. No use of any Covered Software is authorized under this License except under this disclaimer.</p>
<h3 id="limitation-of-liability">7. Limitation of Liability</h3>
<p>Under no circumstances and under no legal theory, whether tort (including negligence), contract, or otherwise, shall any Contributor, or anyone who distributes Covered Software as permitted above, be liable to You for any direct, indirect, special, incidental, or consequential damages of any character including, without limitation, damages for lost profits, loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses, even if such party shall have been informed of the possibility of such damages. This limitation of liability shall not apply to liability for death or personal injury resulting from such party’s negligence to the extent applicable law prohibits such limitation. Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so this exclusion and limitation may not apply to You.</p>
<h3 id="litigation">8. Litigation</h3>
<p>Any litigation relating to this License may be brought only in the courts of a jurisdiction where the defendant maintains its principal place of business and such litigation shall be governed by laws of that jurisdiction, without reference to its conflict-of-law provisions. Nothing in this Section shall prevent a party’s ability to bring cross-claims or counter-claims.</p>
<h3 id="miscellaneous">9. Miscellaneous</h3>
<h3>7. Limitation of Liability</h3>
<p>Under no circumstances and under no legal theory, whether tort (including negligence), contract, or otherwise, shall any Contributor, or anyone who distributes Covered Software as permitted above, be liable to You for any direct, indirect, special, incidental, or consequential damages of any character including, without limitation, damages for lost profits, loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses, even if such party shall have been informed of the possibility of such damages. This limitation of liability shall not apply to liability for death or personal injury resulting from such party's negligence to the extent applicable law prohibits such limitation. Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so this exclusion and limitation may not apply to You.</p>
<h3>8. Litigation</h3>
<p>Any litigation relating to this License may be brought only in the courts of a jurisdiction where the defendant maintains its principal place of business and such litigation shall be governed by laws of that jurisdiction, without reference to its conflict-of-law provisions. Nothing in this Section shall prevent a party's ability to bring cross-claims or counter-claims.</p>
<h3>9. Miscellaneous</h3>
<p>This License represents the complete agreement concerning the subject matter hereof. If any provision of this License is held to be unenforceable, such provision shall be reformed only to the extent necessary to make it enforceable. Any law or regulation which provides that the language of a contract shall be construed against the drafter shall not be used to construe this License against a Contributor.</p>
<h3 id="versions-of-the-license">10. Versions of the License</h3>
<h4 id="new-versions">10.1. New Versions</h4>
<h3>10. Versions of the License</h3>
<h4>10.1. New Versions</h4>
<p>Mozilla Foundation is the license steward. Except as provided in Section&nbsp;10.3, no one other than the license steward has the right to modify or publish new versions of this License. Each version will be given a distinguishing version number.</p>
<h4 id="effect-of-new-versions">10.2. Effect of New Versions</h4>
<h4>10.2. Effect of New Versions</h4>
<p>You may distribute the Covered Software under the terms of the version of the License under which You originally received the Covered Software, or under the terms of any subsequent version published by the license steward.</p>
<h4 id="modified-versions">10.3. Modified Versions</h4>
<h4>10.3. Modified Versions</h4>
<p>If you create software not governed by this License, and you want to create a new license for such software, you may create and use a modified version of this License if you rename the license and remove any references to the name of the license steward (except to note that such modified license differs from this License).</p>
<h4 id="distributing-source-code-form-that-is-incompatible-with-secondary-licenses">10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses</h4>
<h4>10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses</h4>
<p>If You choose to distribute Source Code Form that is Incompatible With Secondary Licenses under the terms of this version of the License, the notice described in Exhibit B of this License must be attached.</p>
<h3 id="exhibit-a---source-code-form-license-notice">Exhibit A - Source Code Form License Notice</h3>
<h3>Exhibit A - Source Code Form License Notice</h3>
<pre>
This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
If a copy of the MPL was not distributed with this file, you can obtain one at http://mozilla.org/MPL/2.0/.
If a copy of the MPL was not distributed with this file, you can obtain one at http://mozilla.org/MPL/2.0
</pre>
<p>If it is not possible or desirable to put the notice in a particular file, then You may include the notice in a location (such as a LICENSE file in a relevant directory) where a recipient would be likely to look for such a notice.</p>
<p>You may add additional accurate notices of copyright ownership.</p>
<h3 id="exhibit-b---incompatible-with-secondary-licenses-notice">Exhibit B - "Incompatible With Secondary Licenses" Notice</h3>
<h3>Exhibit B - "Incompatible With Secondary Licenses" Notice</h3>
<pre>
This Source Code Form is "Incompatible With Secondary Licenses",
as defined by the Mozilla Public License, v. 2.0.
......
h2/src/docsrc/text/_docs_en.utf8.txt
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h2/src/docsrc/text/_docs_ja.utf8.txt
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h2/src/docsrc/textbase/_docs_en.properties
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h2/src/main/org/h2/command/ddl/AlterTableAddConstraint.java
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......@@ -358,8 +358,8 @@ public class AlterTableAddConstraint extends SchemaCommand {
for (IndexColumn col : cols) {
// all columns of the list must be part of the index,
// but not all columns of the index need to be part of the list
// holes are not allowed (index=a,b,c & list=a,b is ok; but list=a,c
// is not)
// holes are not allowed (index=a,b,c & list=a,b is ok;
// but list=a,c is not)
int idx = existingIndex.getColumnIndex(col.column);
if (idx < 0 || idx >= cols.length) {
return false;
......
h2/src/main/org/h2/command/ddl/CreateTable.java
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......@@ -205,7 +205,7 @@ public class CreateTable extends SchemaCommand {
"with a higher ID: " + t +
", this is currently not supported, " +
"as it would prevent the database from " +
"beeing re-opened");
"being re-opened");
}
}
}
......
h2/src/main/org/h2/mvstore/MVStore.java
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......@@ -1341,6 +1341,11 @@ public class MVStore {
return true;
}
/**
* Compact by moving all chunks next to each other.
*
* @return if anything was written
*/
public synchronized boolean compactMoveChunks() {
return compactMoveChunks(Long.MAX_VALUE);
}
......@@ -2467,8 +2472,8 @@ public class MVStore {
}
/**
* Get the estimated memory (in bytes) of unsaved data. If the value exceeds the
* auto-commit memory, the changes are committed.
* Get the estimated memory (in bytes) of unsaved data. If the value exceeds
* the auto-commit memory, the changes are committed.
* <p>
* The returned value is an estimation only.
*
......
h2/src/main/org/h2/mvstore/Page.java
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......@@ -222,6 +222,12 @@ public class Page {
return p != null ? p : map.readPage(children[index]);
}
/**
* Get the position of the child.
*
* @param index the index
* @return the position
*/
public long getChildPagePos(int index) {
return children[index];
}
......
h2/src/main/org/h2/mvstore/db/MVTableEngine.java
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......@@ -226,6 +226,8 @@ public class MVTableEngine implements TableEngine {
/**
* Remove all temporary maps.
*
* @param objectIds the ids of the objects to keep
*/
public void removeTemporaryMaps(BitField objectIds) {
for (String mapName : store.getMapNames()) {
......
h2/src/main/org/h2/res/help.csv
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......@@ -155,8 +155,8 @@ CREATE AGGREGATE [ IF NOT EXISTS ] newAggregateName FOR className
","
Creates a new user-defined aggregate function."
"Commands (DDL)","CREATE ALIAS","
CREATE ALIAS [ IF NOT EXISTS ] newFunctionAliasName [ DETERMINISTIC ] [ NOBUFFER ]
{ FOR classAndMethodName | AS sourceCodeString }
CREATE ALIAS [ IF NOT EXISTS ] newFunctionAliasName [ DETERMINISTIC ]
[ NOBUFFER ] { FOR classAndMethodName | AS sourceCodeString }
","
Creates a new function alias."
"Commands (DDL)","CREATE CONSTANT","
......@@ -171,13 +171,14 @@ CREATE DOMAIN [ IF NOT EXISTS ] newDomainName AS dataType
Creates a new data type (domain)."
"Commands (DDL)","CREATE INDEX","
CREATE
{ [ UNIQUE ] [ HASH ] [ SPATIAL] INDEX [ [ IF NOT EXISTS ] newIndexName ]
{ [ UNIQUE ] [ HASH | SPATIAL] INDEX [ [ IF NOT EXISTS ] newIndexName ]
| PRIMARY KEY [ HASH ] }
ON tableName ( indexColumn [,...] )
","
Creates a new index."
"Commands (DDL)","CREATE LINKED TABLE","
CREATE [ FORCE ] [ [ GLOBAL | LOCAL ] TEMPORARY ] LINKED TABLE [ IF NOT EXISTS ]
CREATE [ FORCE ] [ [ GLOBAL | LOCAL ] TEMPORARY ]
LINKED TABLE [ IF NOT EXISTS ]
name ( driverString, urlString, userString, passwordString,
[ originalSchemaString, ] originalTableString ) [ EMIT UPDATES | READONLY ]
","
......
h2/src/main/org/h2/result/ResultTempTable.java
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......@@ -90,11 +90,11 @@ public class ResultTempTable implements ResultExternal {
private void createIndex() {
IndexColumn[] indexCols = null;
if (sort != null) {
int[] colInd = sort.getQueryColumnIndexes();
indexCols = new IndexColumn[colInd.length];
for (int i = 0; i < colInd.length; i++) {
int[] colIndex = sort.getQueryColumnIndexes();
indexCols = new IndexColumn[colIndex.length];
for (int i = 0; i < colIndex.length; i++) {
IndexColumn indexColumn = new IndexColumn();
indexColumn.column = table.getColumn(colInd[i]);
indexColumn.column = table.getColumn(colIndex[i]);
indexColumn.sortType = sort.getSortTypes()[i];
indexColumn.columnName = COLUMN_NAME + i;
indexCols[i] = indexColumn;
......
h2/src/main/org/h2/table/TableView.java
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......@@ -239,8 +239,9 @@ public class TableView extends Table {
return item;
}
}
// We cannot hold the lock during the ViewIndex creation or we risk ABBA deadlocks
// if the view creation calls back into H2 via something like a FunctionTable.
// We cannot hold the lock during the ViewIndex creation or we risk ABBA
// deadlocks if the view creation calls back into H2 via something like
// a FunctionTable.
ViewIndex i2 = new ViewIndex(this, index, session, masks);
synchronized (this) {
// have to check again in case another session has beat us to it
......
h2/src/main/org/h2/util/AbbaDetector.java
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......@@ -28,13 +28,22 @@ public class AbbaDetector {
};
/**
* Map of (object A) -> ( map of (object locked before object A) -> (stacktrace where locked) )
* Map of (object A) -> (
* map of (object locked before object A) ->
* (stack trace where locked) )
*/
private static final Map<Object, Map<Object, Exception>> LOCK_ORDERING =
new WeakHashMap<Object, Map<Object, Exception>>();
private static final Set<String> KNOWN_DEADLOCKS = new HashSet<String>();
/**
* This method is called just before or just after an object is
* synchronized.
*
* @param o the object, or null for the current class
* @return the object that was passed
*/
public static Object begin(Object o) {
if (o == null) {
o = new SecurityManager() {
......@@ -59,8 +68,8 @@ public class AbbaDetector {
}
if (TRACE) {
String thread = "[thread " + Thread.currentThread().getId() + "]";
String ident = new String(new char[stack.size() * 2]).replace((char) 0, ' ');
System.out.println(thread + " " + ident +
String indent = new String(new char[stack.size() * 2]).replace((char) 0, ' ');
System.out.println(thread + " " + indent +
"sync " + getObjectName(o));
}
if (stack.size() > 0) {
......@@ -79,7 +88,7 @@ public class AbbaDetector {
return o.getClass().getSimpleName() + "@" + System.identityHashCode(o);
}
public static synchronized void markHigher(Object o, Deque<Object> older) {
private static synchronized void markHigher(Object o, Deque<Object> older) {
Object test = getTest(o);
Map<Object, Exception> map = LOCK_ORDERING.get(test);
if (map == null) {
......@@ -118,19 +127,4 @@ public class AbbaDetector {
}
}
public static void main(String... args) {
Integer a = 1;
Float b = 2.0f;
synchronized (a) {
synchronized (b) {
System.out.println("a, then b");
}
}
synchronized (b) {
synchronized (a) {
System.out.println("b, then a");
}
}
}
}
h2/src/main/org/h2/util/AbbaLockingDetector.java
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......@@ -23,18 +23,20 @@ import java.util.WeakHashMap;
*/
public class AbbaLockingDetector implements Runnable {
private int tickInterval_ms = 2;
private int tickIntervalMs = 2;
private volatile boolean stop;
private final ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
private final ThreadMXBean threadMXBean =
ManagementFactory.getThreadMXBean();
private Thread thread;
/**
* Map of (object A) -> ( map of (object locked before object A) ->
* (stacktrace where locked) )
* (stack trace where locked) )
*/
private final Map<String, Map<String, String>> LOCK_ORDERING = new WeakHashMap<String, Map<String, String>>();
private final Set<String> KNOWN_DEADLOCKS = new HashSet<String>();
private final Map<String, Map<String, String>> lockOrdering =
new WeakHashMap<String, Map<String, String>>();
private final Set<String> knownDeadlocks = new HashSet<String>();
/**
* Start collecting locking data.
......@@ -48,9 +50,12 @@ public class AbbaLockingDetector implements Runnable {
return this;
}
/**
* Reset the state.
*/
public synchronized void reset() {
LOCK_ORDERING.clear();
KNOWN_DEADLOCKS.clear();
lockOrdering.clear();
knownDeadlocks.clear();
}
/**
......@@ -83,15 +88,19 @@ public class AbbaLockingDetector implements Runnable {
}
private void tick() {
if (tickInterval_ms > 0) {
if (tickIntervalMs > 0) {
try {
Thread.sleep(tickInterval_ms);
Thread.sleep(tickIntervalMs);
} catch (InterruptedException ex) {
// ignore
}
}
ThreadInfo[] list = threadMXBean.dumpAllThreads(true/* lockedMonitors */, false/* lockedSynchronizers */);
ThreadInfo[] list = threadMXBean.dumpAllThreads(
// lockedMonitors
true,
// lockedSynchronizers
false);
processThreadList(list);
}
......@@ -110,7 +119,8 @@ public class AbbaLockingDetector implements Runnable {
* We cannot simply call getLockedMonitors because it is not guaranteed to
* return the locks in the correct order.
*/
private static void generateOrdering(final List<String> lockOrder, ThreadInfo info) {
private static void generateOrdering(final List<String> lockOrder,
ThreadInfo info) {
final MonitorInfo[] lockedMonitors = info.getLockedMonitors();
Arrays.sort(lockedMonitors, new Comparator<MonitorInfo>() {
@Override
......@@ -132,28 +142,30 @@ public class AbbaLockingDetector implements Runnable {
}
}
private synchronized void markHigher(List<String> lockOrder, ThreadInfo threadInfo) {
private synchronized void markHigher(List<String> lockOrder,
ThreadInfo threadInfo) {
String topLock = lockOrder.get(lockOrder.size() - 1);
Map<String, String> map = LOCK_ORDERING.get(topLock);
Map<String, String> map = lockOrdering.get(topLock);
if (map == null) {
map = new WeakHashMap<String, String>();
LOCK_ORDERING.put(topLock, map);
lockOrdering.put(topLock, map);
}
String oldException = null;
for (int i = 0; i < lockOrder.size() - 1; i++) {
String olderLock = lockOrder.get(i);
Map<String, String> oldMap = LOCK_ORDERING.get(olderLock);
Map<String, String> oldMap = lockOrdering.get(olderLock);
boolean foundDeadLock = false;
if (oldMap != null) {
String e = oldMap.get(topLock);
if (e != null) {
foundDeadLock = true;
String deadlockType = topLock + " " + olderLock;
if (!KNOWN_DEADLOCKS.contains(deadlockType)) {
if (!knownDeadlocks.contains(deadlockType)) {
System.out.println(topLock + " synchronized after \n " + olderLock
+ ", but in the past before\n" + "AFTER\n" + getStackTraceForThread(threadInfo)
+ ", but in the past before\n" + "AFTER\n" +
getStackTraceForThread(threadInfo)
+ "BEFORE\n" + e);
KNOWN_DEADLOCKS.add(deadlockType);
knownDeadlocks.add(deadlockType);
}
}
}
......@@ -172,13 +184,15 @@ public class AbbaLockingDetector implements Runnable {
* stack frames)
*/
private static String getStackTraceForThread(ThreadInfo info) {
StringBuilder sb = new StringBuilder("\"" + info.getThreadName() + "\"" + " Id=" + info.getThreadId() + " "
+ info.getThreadState());
StringBuilder sb = new StringBuilder("\"" +
info.getThreadName() + "\"" + " Id=" +
info.getThreadId() + " " + info.getThreadState());
if (info.getLockName() != null) {
sb.append(" on " + info.getLockName());
}
if (info.getLockOwnerName() != null) {
sb.append(" owned by \"" + info.getLockOwnerName() + "\" Id=" + info.getLockOwnerId());
sb.append(" owned by \"" + info.getLockOwnerName() +
"\" Id=" + info.getLockOwnerId());
}
if (info.isSuspended()) {
sb.append(" (suspended)");
......@@ -191,9 +205,9 @@ public class AbbaLockingDetector implements Runnable {
final MonitorInfo[] lockedMonitors = info.getLockedMonitors();
boolean startDumping = false;
for (int i = 0; i < stackTrace.length; i++) {
StackTraceElement ste = stackTrace[i];
StackTraceElement e = stackTrace[i];
if (startDumping) {
dumpStackTraceElement(info, sb, i, ste);
dumpStackTraceElement(info, sb, i, e);
}
for (MonitorInfo mi : lockedMonitors) {
......@@ -202,7 +216,7 @@ public class AbbaLockingDetector implements Runnable {
// something.
// Removes a lot of unnecessary noise from the output.
if (!startDumping) {
dumpStackTraceElement(info, sb, i, ste);
dumpStackTraceElement(info, sb, i, e);
startDumping = true;
}
sb.append("\t- locked " + mi);
......@@ -213,8 +227,9 @@ public class AbbaLockingDetector implements Runnable {
return sb.toString();
}
private static void dumpStackTraceElement(ThreadInfo info, StringBuilder sb, int i, StackTraceElement ste) {
sb.append("\tat " + ste.toString());
private static void dumpStackTraceElement(ThreadInfo info,
StringBuilder sb, int i, StackTraceElement e) {
sb.append('\t').append("at ").append(e.toString());
sb.append('\n');
if (i == 0 && info.getLockInfo() != null) {
Thread.State ts = info.getThreadState();
......@@ -237,7 +252,8 @@ public class AbbaLockingDetector implements Runnable {
}
private static String getObjectName(MonitorInfo info) {
return info.getClassName() + "@" + Integer.toHexString(info.getIdentityHashCode());
return info.getClassName() + "@" +
Integer.toHexString(info.getIdentityHashCode());
}
}
h2/src/main/org/h2/util/DateTimeUtils.java
浏览文件 @ a2f52638
......@@ -52,7 +52,8 @@ public class DateTimeUtils {
private static final int[] DAYS_OFFSET = { 0, 31, 61, 92, 122, 153, 184,
214, 245, 275, 306, 337, 366 };
private static final ThreadLocal<Calendar> cachedCalendar = new ThreadLocal<Calendar>() {
private static final ThreadLocal<Calendar> CACHED_CALENDAR =
new ThreadLocal<Calendar>() {
@Override
protected Calendar initialValue() {
return Calendar.getInstance();
......@@ -67,7 +68,7 @@ public class DateTimeUtils {
* Reset the calendar, for example after changing the default timezone.
*/
public static void resetCalendar() {
cachedCalendar.remove();
CACHED_CALENDAR.remove();
}
/**
......@@ -379,7 +380,7 @@ public class DateTimeUtils {
int millis) {
Calendar c;
if (tz == TimeZone.getDefault()) {
c = cachedCalendar.get();
c = CACHED_CALENDAR.get();
} else {
c = Calendar.getInstance(tz);
}
......@@ -416,7 +417,7 @@ public class DateTimeUtils {
* @return the value
*/
public static int getDatePart(java.util.Date d, int field) {
Calendar c = cachedCalendar.get();
Calendar c = CACHED_CALENDAR.get();
c.setTime(d);
if (field == Calendar.YEAR) {
return getYear(c);
......@@ -450,7 +451,7 @@ public class DateTimeUtils {
* @return the milliseconds
*/
public static long getTimeLocalWithoutDst(java.util.Date d) {
return d.getTime() + cachedCalendar.get().get(Calendar.ZONE_OFFSET);
return d.getTime() + CACHED_CALENDAR.get().get(Calendar.ZONE_OFFSET);
}
/**
......@@ -461,7 +462,7 @@ public class DateTimeUtils {
* @return the number of milliseconds in UTC
*/
public static long getTimeUTCWithoutDst(long millis) {
return millis - cachedCalendar.get().get(Calendar.ZONE_OFFSET);
return millis - CACHED_CALENDAR.get().get(Calendar.ZONE_OFFSET);
}
/**
......@@ -731,7 +732,7 @@ public class DateTimeUtils {
* @return the date value
*/
public static long dateValueFromDate(long ms) {
Calendar cal = cachedCalendar.get();
Calendar cal = CACHED_CALENDAR.get();
cal.clear();
cal.setTimeInMillis(ms);
return dateValueFromCalendar(cal);
......@@ -759,7 +760,7 @@ public class DateTimeUtils {
* @return the nanoseconds
*/
public static long nanosFromDate(long ms) {
Calendar cal = cachedCalendar.get();
Calendar cal = CACHED_CALENDAR.get();
cal.clear();
cal.setTimeInMillis(ms);
return nanosFromCalendar(cal);
......
h2/src/main/org/h2/value/ValueTimestamp.java
浏览文件 @ a2f52638
......@@ -40,7 +40,8 @@ public class ValueTimestamp extends Value {
static final int DEFAULT_SCALE = 10;
/**
* A bit field with bits for the year, month, and day (see DateTimeUtils for encoding)
* A bit field with bits for the year, month, and day (see DateTimeUtils for
* encoding)
*/
private final long dateValue;
/**
......@@ -56,7 +57,8 @@ public class ValueTimestamp extends Value {
/**
* Get or create a date value for the given date.
*
* @param dateValue the date value, a bit field with bits for the year, month, and day
* @param dateValue the date value, a bit field with bits for the year,
* month, and day
* @param timeNanos the nanoseconds since midnight
* @return the value
*/
......@@ -81,6 +83,8 @@ public class ValueTimestamp extends Value {
/**
* Get or create a timestamp value for the given date/time in millis.
*
* @param ms the milliseconds
* @param nanos the nanoseconds
* @return the value
*/
public static ValueTimestamp fromMillisNanos(long ms, int nanos) {
......@@ -92,6 +96,7 @@ public class ValueTimestamp extends Value {
/**
* Get or create a timestamp value for the given date/time in millis.
*
* @param ms the milliseconds
* @return the value
*/
public static ValueTimestamp fromMillis(long ms) {
......@@ -193,7 +198,10 @@ public class ValueTimestamp extends Value {
}
/**
* A bit field with bits for the year, month, and day (see DateTimeUtils for encoding)
* A bit field with bits for the year, month, and day (see DateTimeUtils for
* encoding).
*
* @return the data value
*/
public long getDateValue() {
return dateValue;
......@@ -201,6 +209,8 @@ public class ValueTimestamp extends Value {
/**
* The nanoseconds since midnight.
*
* @return the nanoseconds
*/
public long getTimeNanos() {
return timeNanos;
......
h2/src/test/org/h2/test/TestAll.java
浏览文件 @ a2f52638
......@@ -362,6 +362,9 @@ java org.h2.test.TestAll timer
*/
String cacheType;
/**
* The AB-BA locking detector.
*/
AbbaLockingDetector abbaLockingDetector;
private Server server;
......
h2/src/test/org/h2/test/db/TestSpatial.java
浏览文件 @ a2f52638
......@@ -840,7 +840,8 @@ public class TestSpatial extends TestBase {
try {
Statement stat = conn.createStatement();
stat.execute("drop table if exists test");
stat.execute("create table test(id serial primary key, value double, the_geom geometry)");
stat.execute("create table test(id serial primary key, " +
"value double, the_geom geometry)");
stat.execute("create spatial index spatial on test(the_geom)");
ResultSet rs = stat.executeQuery("explain select * from test where _ROWID_ = 5");
assertTrue(rs.next());
......
h2/src/tools/org/h2/build/code/AbbaDetect.java
浏览文件 @ a2f52638
......@@ -85,11 +85,15 @@ public class AbbaDetect {
// the word synchronized within single line comments comments
source = source.replaceAll("(// .* synchronized )([^ ])", "$1 $2");
source = source.replaceAll("synchronized \\((.*)\\(\\)\\)", "synchronized \\(org.h2.util.AbbaDetector.begin\\($1\\(\\)\\)\\)");
source = source.replaceAll("synchronized \\((.*)\\)", "synchronized \\(org.h2.util.AbbaDetector.begin\\($1\\)\\)");
source = source.replaceAll("synchronized \\((.*)\\(\\)\\)",
"synchronized \\(org.h2.util.AbbaDetector.begin\\($1\\(\\)\\)\\)");
source = source.replaceAll("synchronized \\((.*)\\)",
"synchronized \\(org.h2.util.AbbaDetector.begin\\($1\\)\\)");
source = source.replaceAll("static synchronized ([^ (].*)\\{", "static synchronized $1{org.h2.util.AbbaDetector.begin\\(null\\);");
source = source.replaceAll("synchronized ([^ (].*)\\{", "synchronized $1{org.h2.util.AbbaDetector.begin\\(this\\);");
source = source.replaceAll("static synchronized ([^ (].*)\\{",
"static synchronized $1{org.h2.util.AbbaDetector.begin\\(null\\);");
source = source.replaceAll("synchronized ([^ (].*)\\{",
"synchronized $1{org.h2.util.AbbaDetector.begin\\(this\\);");
return source;
}
......
h2/src/tools/org/h2/build/doc/dictionary.txt
浏览文件 @ a2f52638
......@@ -755,4 +755,8 @@ predicted prediction wojtek hops jurczyk cbtree predict vast assumption upside
adjusted lastly sgtatham cleaning gillet prevented
angus bernd chatellier macdonald eckenfels granting moreover exponential transferring
dedup megabyte breadth traversal affine tucc jentsch yyyymmdd vertica graf
mutate shard shards
mutate shard shards succession recipients provisionally contributor statutory
inaccuracies detector logos launcher rewrite monitors equivalents trademarks
reinstated uninteresting dead defendant doctrines beat factual fair suspended
exploit noise ongoing disclaimers shrinks remedy party desirable timely construe
deque synchronizers affero
\ No newline at end of file
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