tail | use caching system for your web project | Caching library
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kandi X-RAY | tail Summary
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tail Examples and Code Snippets
Lines of Code : 36License : Permissive (MIT License)
Copyprivate void addNodeWithUpdatedFrequency(Node node) {
if(tail != null && head != null) {
Node temp = this.head;
while(temp != null) {
if(temp.frequency > node.frequency) {
if(temp==head) {
node.next = temp;
tem private void moveNodeToLast(Entry entry) {
if (tail == entry) {
return;
}
final Entry preEntry = entry.getPreEntry();
final Entry nextEntry = entry.getNextEntry();
if (preEntry != null) {
private void moveEntryToLast(Entry entry) {
if (tail == entry) {
return;
}
final Entry preEntry = entry.getPreEntry();
final Entry nextEntry = entry.getNextEntry();
if (preEntry != null) {
Community Discussions
Trending Discussions on tail
QUESTION
I would like to introspect the tail end of a method call from the callee side.
Right now I am doing this explicitly...
...ANSWER
Answered 2022-Mar-29 at 21:11Per @jonathans comment, the raku docs state:
A method with the special name FALLBACK will be called when other means to resolve the name produce no result. The first argument holds the name and all following arguments are forwarded from the original call. Multi methods and sub-signatures are supported.
QUESTION
I am trying to run Oracle db in docker on M1 Mac. I have tried images from both store/oracle/database-enterprise:12.2.0.1-slim and container-registry.oracle.com/database/enterprise:12.2.0.1-slim but getting the same error.
docker run -d -it --name oracle -v $(pwd)/db/oradata:/ORCL store/oracle/database-enterprise:12.2.0.1-slim
I also tried non-slim version and by providing the --platform linux/amd64 to the docker command. Result is same.
Here's the result of docker logs -f oracle
ANSWER
Answered 2021-Aug-04 at 20:48There are two issues here:
- Oracle Database is not supported on ARM processors, only Intel. See here: https://github.com/oracle/docker-images/issues/1814
- Oracle Database Docker images are only supported with Oracle Linux 7 or Red Hat Enterprise Linux 7 as the host OS. See here: https://github.com/oracle/docker-images/tree/main/OracleDatabase/SingleInstance
Oracle Database ... is supported for Oracle Linux 7 and Red Hat Enterprise Linux (RHEL) 7. For more details please see My Oracle Support note: Oracle Support for Database Running on Docker (Doc ID 2216342.1)
The referenced My Oracle Support Doc ID goes on to say that the database binaries in their Docker image are built specifically for Oracle Linux hosts, and will also work on Red Hat. That's it.
Because Docker provides process level virtualization it still pulls kernel and other OS libraries from the underlying host OS. A Docker image built for Oracle Linux needs an Oracle Linux host; it doesn't bring the Oracle Linux OS with it. Only Oracle Linux or Red Hat Linux are supported for any Oracle database Linux installation, with or without Docker. Ubuntu, Mac OS, Debian, or any other *NIX flavor will not provide predictable reliable results, even if it is hacked into working or the processes appear to work normally.
QUESTION
Got this command: cd /some/dir; /usr/local/bin/git log --diff-filter=A --follow --format=%aI -- /some/dir/file | tail -1
I want to get the output from it.
Tried this:
my $proc2 = run 'cd', $dirname, ';', '/usr/local/bin/git', 'log', '--diff-filter=A', '--follow', '--format=%aI', '--', $output_file, '|', 'tail', '-1', :out, :err;
Nothing output.
Tried this:
my $proc2 = run , $dirname, , $output_file, <| tail -1>, :out, :err;
Git throws an error:
fatal: --follow requires exactly one pathspec
The same git command runs fine when run directly from the command line.
I've confirmed both $dirname and $output_file are correct.
git log --help didn't shed any light on this for me. Command runs fine straight from command line.
UPDATE: So if I take off the | tail -1 bit, I get output from the command in raku (a date). I also discovered if I take the pipe out when running on the command line, the output gets piped into more. I'm not knowledgeable enough about bash and how it might interact with raku's run command to know for sure what's going on.
ANSWER
Answered 2022-Mar-07 at 05:26You need to run a separate proc for piping:
QUESTION
I have a dockerfile that currently only installs pip-tools
...ANSWER
Answered 2022-Feb-05 at 16:30It is a bug, you can downgrade using:
pip install "pip<22"
QUESTION
This question is complementary to figuring out why this error (which started as a
zeferror) occurs.
Apparently, in certain circumstances the repository chain accessible from $*REPO may vary. Namely, in a GitHub action such as this one, where raku is part of a Docker image, all of a sudden the repository chain becomes:
ANSWER
Answered 2022-Feb-09 at 18:32You need to set RAKULIB to wherever your libraries were initially installed, as is done here:
QUESTION
I would like to implement forward-chaining reasoning in Prolog. I made up a simple KB of facts and some rules, from which I should be able to get the fact green(fritz).
I tried to implement it but somehow, when member fails, it stops going on.
ANSWER
Answered 2022-Jan-24 at 22:11There are several problems here.
Problem 1 is that the non-recursive clauses for your recursive predicates look like this:
QUESTION
I am using VSCode to develop something using the Flutter Framework. The Flutter extension writes logs to the debug console. I scroll the debug console to the bottom, so it stays auto-scrolling / tailing the log.
Whenever the flutter logs write a large amount of data at once, the debug console stops tailing the log all of a sudden.
Has anyone observed this same issue before and found a solution?
...ANSWER
Answered 2022-Jan-16 at 17:32Go to settings (Ctrl+), search for "Word Wrap" and untick it.
As stated here: https://github.com/microsoft/vscode/issues/118702
If that doesn't work, there's an issue on Github which is still open to date. Keep an eye on it and wait for the fix:
QUESTION
With code below (edited basing on code from here) I generates two example tables with gt package:
ANSWER
Answered 2022-Jan-06 at 13:23I can offer to you this solution:
1. We take your data:
QUESTION
I have a ring buffer that looks like:
...ANSWER
Answered 2021-Dec-31 at 12:49Previous answers may help as background:
c++, std::atomic, what is std::memory_order and how to use them?
https://bartoszmilewski.com/2008/12/01/c-atomics-and-memory-ordering/
Firstly the system you describe is known as a Single Producer - Single Consumer queue. You can always look at the boost version of this container to compare. I often will examine boost code, even when I work in situations where boost is not allowed. This is because examining and understanding a stable solution will give you insights into problems you may encounter (why did they do it that way? Oh, I see it - etc). Given your design, and having written many similar containers I will say that your design has to be careful about distinguishing empty from full. If you use a classic {begin,end} pair, you hit the problem that due to wrapping
{begin, begin+size} == {begin, begin} == empty
Okay, so back synchronisation issue.
Given that the order only effects reording, the use of release in Publish seems a textbook use of the flag. Nothing will read the value until the size of the container is incremented, so you don't care if the orders of writes of the value itself happen in a random order, you only care that the value must be fully written before the count is increased. So I would concur, you are correctly using the flag in the Publish function.
I did question whether the "release" was required in the Consume, but if you are moving out of the queue, and those moves are side-effecting, it may be required. I would say that if you are after raw speed, then it may be worth making a second version, that is specialised for trivial objects, that uses relaxed order for incrementing the head.
You might also consider inplace new/delete as you push/pop. Whilst most moves will leave an object in an empty state, the standard only requires that it is left in a valid state after a move. explicitly deleting the object after the move may save you from obscure bugs later.
You could argue that the two atomic loads in consume could be memory_order_consume. This relaxes the constraints to say "I don't care what order they are loaded, as long as they are both loaded by the time they are used". Although I doubt in practice it produces any gain. I am also nervous about this suggestion because when I look at the boost version it is remarkably close to what you have. https://www.boost.org/doc/libs/1_66_0/boost/lockfree/spsc_queue.hpp
QUESTION
I am looking for an easy, concise way to use dplyr::select without rearranging columns.
Consider this dataset:
...ANSWER
Answered 2021-Dec-22 at 21:28We could use match with sort
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