trbase

by TonyRobotics C++ Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(6)Vulnerabilities Install Support

kandi X-RAY | trbase Summary

trbase is a C++ library. trbase has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

trbase

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Quality

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Support

trbase has a low active ecosystem.

It has 7 star(s) with 4 fork(s). There are 1 watchers for this library.

It had no major release in the last 6 months.

trbase has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of trbase is current.

Quality

trbase has no bugs reported.

Security

trbase has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

trbase does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

trbase releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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trbase Key Features

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trbase Examples and Code Snippets

No Code Snippets are available at this moment for trbase.

Community Discussions

Trending Discussions on trbase

ActiveRecord::ConnectionNotEstablished (No connection pool with 'primary' found.) when rendering results

Issues implementing EPT

Enabling EPT in VMX causes failed entry due to guest state

Change polygon color dynamically

Apply gradient to drawn figure

Proper shadow drop on rotation

QUESTION

ActiveRecord::ConnectionNotEstablished (No connection pool with 'primary' found.) when rendering results

Asked 2020-Sep-17 at 02:32

I'm working on an API on rails 6.0. Some models in the app connects to a 2nd database, and here's the setup in database.yml:

...

ANSWER

Answered 2020-Sep-17 at 02:32

I was able to solve the issue by adding "each_serializer: nil" to render. It seems like Rails doesn't have a connection pool to 'primary' because this end point just connects to the :trmain db, but render for some reason wants to find a ActiveRecord serializer from primary.

Source https://stackoverflow.com/questions/63893998

QUESTION

Issues implementing EPT

Asked 2019-Dec-25 at 22:57

I'm having an issue implementing EPT in a hypervisor I'm developing. I'm receiving error no. 48 (EPT violation. An attempt to access memory with a guest-physical address was disallowed by the configuration of the EPT paging structures) with an EXIT_QUALIFICATION of 0x81 upon doing a VMLAUNCH. I've checked the page allocation logic and made sure GUEST_CR3 = HOST_CR3. I'm not sure why is this happening. I'm running on VMWare on a Linux host.

This is the allocation logic:

...

ANSWER

Answered 2019-Dec-25 at 19:44

It looks like it is only mapping 10 pages (40 KB) in the EPT, but GUEST CR3 is 7776e0000, which is not mapped.

If you want to only map a small amount of memory into the guest, then all the guest structures need to be located within that guest physical address range.

Source https://stackoverflow.com/questions/59481030

QUESTION

Enabling EPT in VMX causes failed entry due to guest state

Asked 2019-Dec-13 at 20:53

I'm building a hypervisor at home and I'm having an issue with entering VMX when enabling EPT. The following code is used to set the guest mode, and it successfully enters VMX. However, when I enable EPT I'm getting a VMX entry failure with exception no. 33 (vm entry failure due to guest state). This is when I uncomment the following code:

...

ANSWER

Answered 2019-Dec-13 at 20:53

The problem is that EPTP has non-zero bits above the processor physical address width. (The physical address width for i3-2130 is 36 bits, I think.)

This should not be reported as an invalid guest state error. Instead it should be an invalid control field error (failed VM entry with error code 7), which is what I see when I test this on real hardware. I think KVM is virtualizing this error incorrectly.

The only way that enabling EPT can cause an invalid guest state error is if the PDPTEs are invalid, which can only happen if the guest paging mode is PAE, not ia32e. (Section 26.3.1.6.)

The problem in the code is that it needs to right shift the address by 12 before storing it into the phys_addr field. See the definition of EPTP in section 24.6.11. The pml4_phys_addr field should contain bits 35:12 of the physical address. Bits 11:0 are not represented (since they are all 0). You can use one of these solutions:

Option A:

Source https://stackoverflow.com/questions/59295306

QUESTION

Change polygon color dynamically

Asked 2019-May-25 at 07:01

I am trying to implement a functionality, where the color of drawn polygon can be dynamically changed. At the moment I have a simple test App where I am able to draw a triangle and rotate it. I then Added 2 buttons which are used to change the colors of all objects.

The rectangles and text colors change correctly but the drawn polygon do not. After random clicking the color change buttons eventually a new polygon is drawn but in an incorrect spot. I really can't tell what could be the problem.

Here is the code:

main.qml

...

ANSWER

Answered 2018-Jul-02 at 06:37

The color is changed but in a rotated triangle since the operations of rotation and translation are maintained, so after a certain amount of clicked you see half of a triangle of the right color. The solution is to save the state prior to the transformations and restore it after painting with save() and restore().

Source https://stackoverflow.com/questions/51129901

QUESTION

Apply gradient to drawn figure

Asked 2019-Mar-27 at 21:27

I have this MWE code here which is drawing a triangle with a set color:

...

ANSWER

Answered 2018-Jul-13 at 12:48

createLinearGradient method is used to draw gradient on canvas. Just create a gradient using this method, add colors of gradient and finally assign it to fillStyle.

Source https://stackoverflow.com/questions/51325230

QUESTION

Proper shadow drop on rotation

Asked 2018-Jul-03 at 06:04

I am trying to create a rotatable triangle that will always cast a shadow on its base. So far I was able to create the code for making and rotating the triangle but the shadow part is problematic. Here is my minimal code example:

...

ANSWER

Answered 2018-Jul-03 at 06:04

since Canvas cannot be assigned with id

Why Canvas can't be assigned with id?

The following code won't have that warning.

Source https://stackoverflow.com/questions/51142518

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install trbase

You can download it from GitHub.

Support

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