Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Backport "HBASE-22504 Addendum: restore findCommonPrefix" to branch-2.3 #1974

Merged
merged 1 commit into from
Jun 25, 2020
Merged

Backport "HBASE-22504 Addendum: restore findCommonPrefix" to branch-2.3 #1974

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
22 changes: 22 additions & 0 deletions hbase-common/src/main/java/org/apache/hadoop/hbase/util/ByteBufferUtils.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -737,6 +737,28 @@ public static void copyFromBufferToBuffer(ByteBuffer in, ByteBuffer out, int sou
}
}

/**
* Find length of common prefix of two parts in the buffer
* @param buffer Where parts are located.
* @param offsetLeft Offset of the first part.
* @param offsetRight Offset of the second part.
* @param limit Maximal length of common prefix.
* @return Length of prefix.
*/
@SuppressWarnings("unused")
public static int findCommonPrefix(ByteBuffer buffer, int offsetLeft,
int offsetRight, int limit) {
int prefix = 0;

for (; prefix < limit; ++prefix) {
if (buffer.get(offsetLeft + prefix) != buffer.get(offsetRight + prefix)) {
break;
}
}

return prefix;
}

/**
* Find length of common prefix in two arrays.
* @param left Array to be compared.
Expand Down