syncs | Concurrency and synchronization primitives | Data Processing library
kandi X-RAY | syncs Summary
kandi X-RAY | syncs Summary
Package syncs provides additional synchronization primitives.
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Top functions reviewed by kandi - BETA
- Go runs f in the group .
- NewErrSizedGroup returns a new Group .
- NewSizedGroup returns a new SizedGroup .
- NewSemaphore returns a semaphore that locks the given capacity .
- Context specifies the context for the group
- Preemptive causes the lock to be preemptive .
- TermOnErr causes the error to terminate .
syncs Key Features
syncs Examples and Code Snippets
Community Discussions
Trending Discussions on syncs
QUESTION
I have a Text widget (my_text
) in my program that should only accept certain characters. If the user enters a character that isn't defined in a dictionary (ACCEPTED
), the program should either ignore the input entirely or, at the very least, remove the character right after it's been entered. Otherwise, the program should output the corresponding value into my_text2
.
I'm doing my best to also ensure that my program accounts for text entered before the end of the text content. For example, say a user goes back and inserts text in the middle of a sentence; this program should still function as expected. This is an example of the logic I'm working with:
...ANSWER
Answered 2021-Jun-10 at 19:19Returning "break"
from a function that is called from an event, will stop the event. That means that tkinter
's widget will never get the event.
QUESTION
I have made a lightweight mediator kind of library for use internally.
A query can be mapped to a async method without the caller knowing anything about it.
...ANSWER
Answered 2021-May-27 at 11:37As as been commented already, the optimal solution would be to have async
all the way... but sometimes that's not possible. Even Microsoft has acknowledged this by having a tool in their own frameworks to run async
methods synchronously:
QUESTION
I am building upon the Cloud Mirror Sample and having a similar issue to this one
Here is the test code involved:
...ANSWER
Answered 2021-May-27 at 09:18I observe similar behaviour. The hydration of files up to 4Gb works fine, but files over 4Gb always stuck and failed with the 'Cloud operation is invalid' exception. I was able to overcome it with this fix but instead of the CF_CALLBACK_PARAMETERS.FETCHDATA.RequiredLength and OptionalLength, I used a complete file length from CF_CALLBACK_INFO.FileSize. It looks like after a recent Windows update the OptionalLength is always zero. My code is in .NET, but I guess you can easily translate it into C++:
QUESTION
I wrote up the following script, which pulls all the data in just fine. But when I try to break it up into different cells, it returns nothing. What am I missing here?
...ANSWER
Answered 2021-May-26 at 21:06I tested your sample data and it returned to separate cells as expected. But can you try this approach?
Code:QUESTION
I'm trying to create new Azure Monitor Alert using PS script. I'm using MS documentation here: https://docs.microsoft.com/en-us/powershell/module/az.monitor/add-azmetricalertrulev2?view=azps-5.9.0
Steps to reproduce$condition = New-AzMetricAlertRuleV2Criteria -MetricName "SqlDbDtuUsageMetric" -MetricNameSpace "Microsoft.Sql/servers/databases" -TimeAggregation Average -Operator GreaterThan -Threshold 5
$act = New-AzActionGroup -ActionGroupId /subscriptions/{subscription_id}/resourceGroups/{resource_group}/providers/microsoft.insights/actionGroups/SqlDbDtuUsageAction
Add-AzMetricAlertRuleV2 -Name "SqlDbDtuUsageAlertGt5" -ResourceGroupName {resource_group} -WindowSize 00:05:00 -Frequency 00:05:00 -TargetResourceId "/subscriptions/{subscription_id}/resourceGroups/{resource_group}/providers/Microsoft.Sql/servers/{sql_server}/databases/vi{sql_db}" -Description "Alerting when max used DTU is > 20" -Severity 3 -ActionGroup $act -Condition $condition
Error outputWARNING: 09:04:18 - *** The namespace for all the model classes will change from Microsoft.Azure.Management.Monitor.Management.Models to Microsoft.Azure.Management.Monitor.Models in future releases. WARNING: 09:04:18 - *** The namespace for output classes will be uniform for all classes in future releases to make it independent of modifications in the model classes. VERBOSE: Performing the operation "Create/update an alert rule" on target "Create/update an alert rule: SqlDbDtuUsageAlertGt5 from resource group: vi-prod-be-cin-rg". Add-AzMetricAlertRuleV2 : Exception type: ErrorResponseException, Message: Couldn't find a metric named metric1. Make sure the name is correct. Activity ID: 3e7e537e-43fc-40ad-8a84-745df33e1668., Code: BadRequest, Status code:BadRequest, Reason phrase: BadRequest At line:1 char:1
- Add-AzMetricAlertRuleV2 -Name "SqlDbDtuUsageAlertGt5" -ResourceGroupN ...
- ...
ANSWER
Answered 2021-May-25 at 01:40According to the error, the MetricNameSpace Microsoft.Sql/servers/databases
does not contain metric SqlDbDtuUsageMetric
. Regarding the supported metric, please use the following command to get
QUESTION
I am using the MERN stack and I have a component that will create resources to store on the database. This component has an associated redux slice to store its state. The state includes the status of the request made to the server for posting the resource to create.
When React first executes, the main display component uses a redux-thunk to load some important resources. Currently, it loads the authentication status of the user in a redux slice. When the person logs in or logs out, this authentication status is changed.
When a user loses their authentication status while already having loaded up a protected component, the server denies access to protected resources and allows the client to sync its authentication status. For example, the user logs in and goes to the protected component that creates resources. The user then logs out on a different tab. Now, the client still believes the user is authenticated but the server knows they are not. If the client makes a request to create a new resource, the server will reject it and the client will sync its authentication status with the server.
The problem I am facing is in a redux-thunk inside the redux slice that is associated with the protected component. If the server rejects the create request because the user is unauthenticated, the thunk dispatches an action to update the authentication status of the user.
When the authentication status of the user changes, a ProtectedRoute component immediately unmounts the protected components and mounts the login component (here). Upon being unmounted, the protected component dispatches an action to reset its redux state.
Now, all of this happens as the action to reset authentication has been dispatched. The redux-thunk promise resolves after this and a reducer changes the protected component's redux state. This makes the reset state action useless.
...ANSWER
Answered 2021-May-24 at 07:56I'll suggest a few possible approaches for your issue:
- signal that state update should be ignored with a different value: You can provide a different value to
rejectWithValue
such that your reducer can ignore the update if this value is provided. So in your reducer you could do something like:
QUESTION
i have read https://flutter.dev/docs/development/ui/assets-and-images#asset-images-in-package-dependencies and Flutter - Read text file from assets and applied all there was but my code still doesn't work....
i opened a new project for this, in the main folder i created assets and a file :
...ANSWER
Answered 2021-May-19 at 13:56You have to put your test.txt
inside your assets
folder in your project directory.
Also, it would be better if you could add your project directory structure to your post.
Instead of this,
QUESTION
I'm creating a web API with ASP.NET Core, but I'm having some trouble getting Serilog to work. It will output to the console fine. However, when I tell it to output to a file, it will create a file, but not enter any logs into it. The same happens when I try to use a PostgreSQL database. Any ideas on what is wrong?
appsettings.json
...ANSWER
Answered 2021-May-07 at 20:32Have you tried to tell Serilog which sinks it should use? :-)
"Using": [ "Serilog.Sinks.Console", "Serilog.Sinks.File" ],
From Serilog documentation: https://github.com/serilog/serilog-settings-configuration#serilogsettingsconfiguration--
QUESTION
I am having some difficulties on executing local storage operations...
...ANSWER
Answered 2021-May-10 at 13:37because return { data }
is not a valid expression for async functions
just use AsyncStorage
, react-native-storage
is not needed unless you develop for both mobile and web
QUESTION
I am trying to integrate our on-prem AD with an Azure function app. I need to be able to get users and update them.
We have both Azure AD and on-prem AD which are synced via the Azure AD Connect, which syncs only one way (from AD to AAD). So I want to update users in the on-prem AD, which will sync to the Azure AD. For this, I am using System.DirectoryServices.AccountManagement, which works fine from my local machine. However, it doesn't work in my Azure app.
We have set up a hybrid connection to the AD to have a gateway, but we haven't been able to make it work. We have also created a user which has read-rights to the domain.
Code:
...ANSWER
Answered 2021-May-05 at 20:59Azure Hybrid Connections don't support LDAP, because it can require UDP.
https://docs.microsoft.com/en-us/azure/app-service/app-service-hybrid-connections
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