qcd | Command Line App to navigate | Command Line Interface library
kandi X-RAY | qcd Summary
kandi X-RAY | qcd Summary
For everyone who is upset by typing endless directory paths to change directories. Define shortcuts, with which you can navigate quickly between directories and projects. Using the qcd back command, you can easily switch back to the directory you came from.
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Top functions reviewed by kandi - BETA
- Command implements Command .
- AddQL adds QuickLink to store
- RemoveQL removes a quick link from the store
- writeStore creates a new store
- createStoreIfNotExist creates the default store if it doesn t exist .
- GetQLs returns the full links
- Main entry point
- userHomePath returns the home directory
- configDirPath returns the home directory path .
- storePath returns the current store path .
qcd Key Features
qcd Examples and Code Snippets
Community Discussions
Trending Discussions on qcd
QUESTION
I've searched for a number of hours now and am unable to figure out how to do this.
I query an MSSQL database that returns 2 columns, one of these values is empty/null but does represent something in the SQL database(I've tested disabling it).
How would I check through what is returned from my query for the empty value and modify this to something else?
...ANSWER
Answered 2021-May-18 at 14:30I don't know if I understand your question correctly. I understand that you want to have a default_value when there is no data in a column.
That can be solved in your SQL Query with case
. Here an example
[Edit] Based on your added query
QUESTION
I'm using CMake with the Ninja generator to generate QNX libraries, and it's creating a rules.ninja
with rules that look like this:
ANSWER
Answered 2021-Apr-19 at 13:38Okay, I managed to figure it out. The variables to use are CMAKE_"LANG"_ARCHIVE_CREATE
and CMAKE_"LANG"_ARCHIVE_APPEND
Like so:
QUESTION
I'm trying to construct a query against my index that will use function_score
to boost records where fields have certain values. In Kibana Dev Tools, I have the following query that returns 3 hits as expected:
ANSWER
Answered 2021-Jan-22 at 17:03I think I found the answer. From the docs for function_score:
To use function_score, the user has to define a query and one or more functions, that compute a new score for each document returned by the query.
So, unlike my manual query in Dev Tools, I added a single function to the NEST
query:
QUESTION
I have two inputs that I need to validate against each other. They are a minimum and maximum. Here is the part of my view defining them.
...ANSWER
Answered 2019-Oct-02 at 20:15As is so often the case, the solution is "If you can't beat them, join them".
Instead of disabling jQuery validation on the elements that I am custom handling, the solution is just to lean into the jQuery validation library and use it the proper way. Everything remains the same on the .NET side, but the minMaxValidate()
function becomes this:
QUESTION
I have an XML feed of producs, WordPress (last version), WpAllImport Pro (last version) and WooCommerce (last version) and I want to update my products periodically.
In order to update my products, I need to make something with the old ones that disappear from the XML. WPAI have this option named "Delete products that are no longer present in your file" and a custom function for this: "function my_is_post_to_delete( $is_post_to_delete, $post_id, $import )"
Now, the problem is that my store is full of External products and for this type of product, I don't have stock.
What I need is to change the product type from External to Simple and then to update his stock and then his status to "out of stock".
I have the following code:
...ANSWER
Answered 2019-Sep-24 at 09:21Have you tried updating the variation cache?
update_post_meta( $product_id, '_stock_status', wc_clean( 'outofstock' ) );
wp_set_post_terms( $product_id, 'outofstock', 'product_visibility', true );
wc_delete_product_transients( $product_id );
QUESTION
I've a Modelsim testbench in System Verilog testing a Verilog top-level module (ufm1
) with another Verilog module (wishbone
) used inside it, there's also a System Verilog "stub" (wishbone_sim
) that is connected to the DUT in the testbench.
The DUT and the inner module were originally in System Verilog and worked fine but I had to convert them to Verilog to be able to use Diamond LSE (leaving the testbench in System Verilog)
The inner module inside the DUT has an output which I'm connecting to a wire
(was originally a reg
in the System Verilog version because it gave an error otherwise) inside the DUT and then using the wire to assign to a reg
in a procedural block inside the DUT.
Inside the inner module this output is basically assigned directly from an input.
Now when I'm simulating this the input in the inner module is fine but the output (should be the same because it is a direct assign
) is different with Xs in place of 1s.
The issue only starts appearing when the output of the inner module (rd_data
) is assigned to the wire (wb_rd_data
), which looks strange to be because I don't see how connecting an output port to a wire would affect its value.
The wire inside the DUT is wb_rd_data
wich is connected to the rd_data
port of the inner wishbone
module.
How do I fix this?
DUT:
...ANSWER
Answered 2019-Sep-18 at 23:27The issue was that I had a default value for the wb_rd_data
wire inside the DUT:
QUESTION
I am trying to use Date Range search in Elastic search using NEST API.
I know that ES stores the timestamp in UTC while doing integration with Nlog. However, I need to a Date Range search in this @timestamp field.
I wrote these following queries :
From Date Search:
...ANSWER
Answered 2019-Jul-05 at 11:53In theory, it should work like that. The following Elastic Query
QUESTION
As far as I know, 8086 instruction has 3-types of instruction set about data moving:
- memory to register
- register to memory
- register to register
However, yesterday I found some instruction set such as movsb and outsb,
In usage of those instructions, memory to memory(M2M) operation was possible!
In this time, I'm curious about why M2M instructions are exist.
I found there's lots of restriction of using them.
- Those instructions consume lot of CPU cycles,
- Those instructions require of using segment register as operand.
And those M2M operations are also runnable with combining above 1,2,3 types of instructions.
Question:
It's hard for me to agree with existence of those M2M instructions.
Are those only exist for making shorter assembly codes?
ANSWER
Answered 2019-Apr-08 at 07:56The movs*
and cmps*
instructions are quite handy as they let you perform such common tasks as copying data and comparing data.
The ins*
and outs*
are similar to movs*
in nature, they simply move data between memory and I/O devices. They are especially helpful for reading/writing to a disk in complete sectors (typically 512 bytes). Of course, DMAs obliterate these since DMA-based I/O is even more efficient, but back in the day they weren't as common as they are today.
Simulating these instructions (especially their repeated forms (look up the rep
prefix)) would've required more code and would've been slower. Hence their existence.
Btw, the xchg
instruction and any other read-modify-write instruction (e.g. add
) with the destination in memory are also effectively memory-to-memory instructions. Not all CPUs have these, many mainly offer instructions that either read from memory or write to memory but not both (the exception would be the instructions that are used to implement exclusive/atomic access to memory, think xchg
, xadd
, cmpxchg8/16
). CPUs with such instruction sets belong to so-called load-store architectures.
Also, the push
and pop
instructions may have their explicit operand designate a memory location. That's another form of memory-to-memory instructions.
As for segments, nearly all instructions that read or write memory involve segments (some system instructions work differently), so the segment management and overhead is not something you could somehow avoid if you decided not to use the instructions you're mentioning and opt for some other instructions instead.
QUESTION
I'm trying to use RDPMC
Instruction for counting retired instructions and as Intel Software Developer's Manual Volume 3, Appendix A (In PERFORMANCE MONITORING section) mentioned:
• Instructions Retired — Event select C0H, Umask 00H This event counts the number of instructions at retirement. For instructions that consist of multiple micro-ops, this event counts the retirement of the last micro-op of the instruction. An instruction with a REP prefix counts as one instruction (not per iteration). Faults before the retirement of the last micro-op of a multi-ops instruction are not counted.
I used the answer from here to enable the performance counter from Linux Kernel-Mode module.
As you can see from here (Description of RDPMC
):
Loads the contents of the 40-bit performance-monitoring counter specified in the ECX register into registers EDX:EAX. The EDX register is loaded with the high-order 8 bits of the counter and the EAX register is loaded with the low-order 32 bits. The Pentium® Pro processor has two performance-monitoring counters (0 and 1), which are specified by placing 0000H or 0001H, respectively, in the ECX register.
After that, I put the 0 to RAX
and execute RDPMC
(in user-mode) but after RDPMC
executed multiple times EDX:EAX
are still zero.
So my questions are :
- How to count the Retired Instructions on a specific process in user-mode?
- What are the differences between
Event select C0H
andUmask 00H
and I want to know how to useC0H
and00H
?
ANSWER
Answered 2018-Jul-15 at 11:00I put the 0 to RAX and execute RDPMC
The selector goes in ECX, not EAX.
How to count the Retired Instructions on a specific process in user-mode?
Use perf stat ./a.out
if you want Linux to virtualize the performance counters on context switches and CPU migrations to track things on per-process basis instead of a per-CPU basis. Or if you're programming the performance counters manually, make sure you pin your process to a core.
I often profile stuff with perf stat -etask-clock,context-switches,cpu-migrations,page-faults,cycles,branches,instructions,uops_issued.any,uops_executed.thread ./a.out
. (e.g. see the output in Can x86's MOV really be "free"? Why can't I reproduce this at all?).
Perf's instructions
event uses the Instructions Retired counter. (Actually it uses the fixed counter for that event, instead of using up a slot on one of the programmable counters.)
Symbolic names for non-generic uarch-specific events like uops_issued.any
used to only be available in the ocperf.py
wrapper script, but perf 4.15.gd8a5b8
on Arch Linux supports them directly. I think this change was pretty recent.
What are the differences between Event select C0H and Umask 00H and I want to know how to use C0H and 00H?
You have to program the programmable counter with the right event and unit mask. The umask usually selects variations of some related thing. See http://oprofile.sourceforge.net/docs/intel-haswell-events.php for a list of what the umask values for each event do on Haswell.
Besides the large an complex perf
subsystem in Linux, there are already a few open-source libraries for programming the perf counters to set up for reading them from user-space. See Perf overcounting simple CPU-bound loop: mysterious kernel work? for libpfc
, which includes a demo.
You really don't need to write your own if you just want to use it.
QUESTION
Can anyone explain what is the difference between QueryContainerDescriptor, QueryContainer & QueryBase?
How can I assign a query (or QueryBase) to QueryContainer?
In the code below, I can assign the same TermQuery to QueryBase and QueryContainer objects:
...ANSWER
Answered 2018-Jun-04 at 00:57QueryBase
is the base type for all concrete query implementationsQueryContainer
is a container for a query. It is used in places where a query is expected.QueryContainerDescriptor
is a type for building aQueryContainer
using a builder / fluent interface pattern.
NEST supports both an Object Initializer syntax where requests can be composed through instantiating types and composing an object graph by assigning types to properties, and also a Fluent API syntax, where requests can be composed using Lambda expressions and a fluent interface pattern. All *Descriptor
types within NEST are builders for the Fluent API syntax. Use whichever syntax you prefer, or mix and match as you see fit :)
You might be thinking, why do we need QueryContainer
, why not just use QueryBase
? Well, within the JSON representation, a query JSON object is keyed against the name of the query as a property of an outer containing JSON object i.e.
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