trampoline | static RTOS for small embedded systems

by TrampolineRTOS C Version: Current License: GPL-2.0

X-Ray Key Features Code Snippets(1)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | trampoline Summary

trampoline is a C library typically used in Internet of Things (IoT), Raspberry Pi, Arduino applications. trampoline has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

Trampoline is a static RTOS for small embedded systems. Its API is aligned with OSEK/VDX OS and AUTOSAR OS 4.2 standards.

Support

Quality

Security

License

Reuse

Support

trampoline has a low active ecosystem.

It has 461 star(s) with 222 fork(s). There are 75 watchers for this library.

It had no major release in the last 6 months.

There are 19 open issues and 72 have been closed. On average issues are closed in 275 days. There are 5 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of trampoline is current.

Quality

trampoline has no bugs reported.

Security

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

License

trampoline is licensed under the GPL-2.0 License. This license is Strong Copyleft.

Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

Reuse

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

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

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trampoline Key Features

No Key Features are available at this moment for trampoline.

trampoline Examples and Code Snippets

Explanation

Java

Lines of Code : 62

License : No License

Copy

public interface Trampoline {

  T get();

  default Trampoline jump() {
    return this;
  }

  default T result() {
    return get();
  }

  default boolean complete() {
    return true;
  }

  static  Trampoline done(final T result) {
    return (

Community Discussions

Trending Discussions on trampoline

Parse soapMessage XML as String and search it with XPath in Java

NullpointerException error while working with choiceBox and arrays

When I execute a jar file I get an error when I want to change from scene

org.sqlite.SQLiteException: [SQLITE_ERROR] SQL error or missing database (near "as": syntax error)

Is there a way to create a a stripped binary with correct offsets?

JavaFX throws null pointer exception when trying to fill TextView with items

How to execute functions sequentially in the background thread?

Websphere Application Server to Oracle Database using TLS 1.2

How to use the do-notation to write a trampoline function in continuation passing style?

How to properly mutex lock a struct used by trampolines called from C

QUESTION

Parse soapMessage XML as String and search it with XPath in Java

Asked 2021-Jun-07 at 20:10

I have a problem which I cannot solve. I have SOAP response which I get from the web service, then I parse it to String and then pass it to method in which I want to find car by id. I constantly get NPE if I use Node or 0 list length if I use NodeList. As a test, I want to get the first car.

SoapResponse:

...

ANSWER

Answered 2021-Jun-07 at 20:10

Since you are already using SAAJ for your call, why not use the same API to read the response?

Source https://stackoverflow.com/questions/67850141

QUESTION

NullpointerException error while working with choiceBox and arrays

Asked 2021-Jun-06 at 09:30

I am trying to get two different choice box to work at the same time However I am getting a nullpointer error in the initialize method. which is kind of weird cuz I am trying to initialize what is in the choice box but the IDE is giving me a nullpointer exception.

this is my code

...

ANSWER

Answered 2021-Jun-06 at 08:01

The issue is that you never say new ChoiceBox, so when you reference them with inputPieceType.getItems().addAll(pieces); or inputPieceAllience.getItems().addAll(allience); on line 62 they are calling methods for an item that was never created.

You could do something like this to initialize the objects:

Source https://stackoverflow.com/questions/67856837

QUESTION

When I execute a jar file I get an error when I want to change from scene

Asked 2021-May-21 at 07:20

I am working with javaFX on inteliJ using javafx-sdk-11.0.2. I made a GUI for a cinema and when I want to run it on inteliJ, everything works fine. But when I create a jar file and I execute it then everything works fine again until I click on a button for switching from scene.

That is what I get when clicking on the button. Note that not all buttons have the same problem. I have some buttons that work fine while I am using the same code everywhere.

...

ANSWER

Answered 2021-May-21 at 07:20

The resource /sample/klantPagina.fxml might not have been found and give a NullPointerException on load.

Source https://stackoverflow.com/questions/67632266

QUESTION

org.sqlite.SQLiteException: [SQLITE_ERROR] SQL error or missing database (near "as": syntax error)

Asked 2021-May-09 at 10:23

I am developing a JavaFX application with Spring Boot and I am experiencing the title exception when I try to list records from a complex SQLite database table.

Before I have been able to select from another simple table, but in this case, is a table with multiple foreign keys:

Here is the table script creation:

...

ANSWER

Answered 2021-May-09 at 10:23

@Column(name = "observaciones,", length = 100, nullable = true, unique = false) you have a comma at the end of the name that is wreaking havoc with the SQL. Remove the comma! Same for fecha,.

Source https://stackoverflow.com/questions/67456579

QUESTION

Is there a way to create a a stripped binary with correct offsets?

Asked 2021-May-08 at 21:52

I'm attempting to convert an assembly file to C++ for use as a small and easy to insert "trampoline" loader for another library. It is injected into another program at runtime, then loads a library, runs a function inside of it, and frees it. This is simply to avoid needing multiple lengthy calls to WriteProccessMemory, and to allow certain runtime checks if needed.

Originally, I wrote the code in assembly as it gave me a high degree of control over the structure of the file. I ended up with a ~128 byte file structured as followed:

...

ANSWER

Answered 2021-May-08 at 21:52

Although incomplete and needing some changes, I think I've come up with a functioning solution for now.

I compile as before, but link with a slightly different command: g++ -T lnkscrpt.txt -O3 -nostdlib Loader.o (-shared just makes the linker complain about missing a DllMain).

lnkscrpt.txt is an ld linker script (https://ftp.gnu.org/old-gnu/Manuals/ld-2.9.1/html_node/ld_5.html#SEC5) as follows:

Source https://stackoverflow.com/questions/67443058

QUESTION

JavaFX throws null pointer exception when trying to fill TextView with items

Asked 2021-Apr-20 at 11:17

I'm trying to create a simple JavaFX project for school that lets the user play the game Nim. In my head the concept was simple because I have already worked with java and JavaFX before. The error occures when I try to set items in TableView by passing in a observable list. I am sure that the list contains objects that I should be able to add. I have no idea whats wrong.

Here Is all of my code:

MainController class:

...

ANSWER

Answered 2021-Apr-20 at 11:17

initialize(), and hence populateTable(), is called during the call to FXMLLoader.load(), which necessarily happens before you call setList(...).

Consequently when populateTable() is invoked, textInTextFieldToList is still null and textInTextFieldToList.isEmpty() throws a NullPointerException.

Simply move the call to populateTable to setList(). This makes sense since you can't populate the table until the list is set, and if you were to call setList() another time, you'd presumably want to repopulate the table.

Source https://stackoverflow.com/questions/67177454

QUESTION

How to execute functions sequentially in the background thread?

Asked 2021-Apr-20 at 09:56

I'm working in making an Android Chat App which has the feature of selecting and sending multiple images from the App. I use RxJava to run the send function in background thread.

I fetch multiple images from the gallery and put them in for loop one by one as shown in the below code. The problem I'm facing is that the order of images is not getting preserved.

This is the code I use to send multiple images.

...

ANSWER

Answered 2021-Apr-20 at 09:56

Use RxJava directly to make a sequence of uploads:

Source https://stackoverflow.com/questions/67173079

QUESTION

Websphere Application Server to Oracle Database using TLS 1.2

Asked 2021-Apr-12 at 14:30

I am trying to implement TLS 1.2 from Websphere Application Server v9.0.5.6 to Oracle 19c Database. Both the WAS and Oracle are on different Virtual Machines running on Centos 7. Used Websphere provided IBM Java 8 and Oracle provided ojdbc8.jar (from Oracle 19c Client). Non-ssl connection is working fine from WAS console.

I have done the following to implement TLS 1.2.

Used this link and completed the Oracle Database side SSL configuration. For testing I even made the client side configuration on WAS vm and tested using sqlplus (with oracle user and oracle 19c client) and I was able to connect and get TCPS as provided in this query.
Then I added the Oracle DB self-signed certificates to 'WAS_HOME/AppServer/profiles/AppSrv01/etc/trust.p12'. I used iKeyman for adding the DB certificate to WAS. Then added the custom property in datasource ‘connectionProperties’ with values javax.net.ssl.trustStore=WAS_HOME/AppServer/profiles/AppSrv01/etc/trust.p12; javax.net.ssl.trustStoreType=PKCS12; oracle.net.ssl_version=1.2; javax.net.ssl.trustStorePassword=***
Instead of point 2, I also tried JKS. Added the Oracle DB self-signed certificates to 'WAS_HOME/AppServer/java/8.0/jre/lib/security/cacerts'. I used iKeyman for adding the DB certificate to WAS. Then added the custom property in datasource ‘connectionProperties’ with values javax.net.ssl.keyStore= WAS_HOME/AppServer/java/8.0/jre/lib/security/cacerts; javax.net.ssl.keyStoreType=JKS; oracle.net.ssl_version=1.2; javax.net.ssl.keyStorePassword=***

I enabled the debug logs and in both the scenarios I am getting the error 'java.security.SignatureException: Signature length not correct: got 128 but was expecting 256'

Can anyone pls suggest on the error or how TLS 1.2 from WAS to Oracle DB can be successfully achieved?

Sysout Logs

...

ANSWER

Answered 2021-Apr-06 at 17:50

Steps

Following is my setup, though setup should not make a difference for achieving TLS 1.2.
WAS v9.0.5.6 on Centos VM1. WAS installed with ‘user1’. Used Websphere provided IBM Java 8.
Oracle Client 19c on same Centos VM1. Oracle client installed with ‘oracle’ user.
Oracle Database 19c on Centos VM2. Database installed with ‘oracle’ user.
Used this link to complete the server and client side certificate configuration. Generated and exchanged the self-signed certificates on/between server and client as given in the instructions. For testing keep the password free from special characters. I have seen issues when password contains special characters.
On Oracle Client host (Centos VM1 for me) convert Oracle PKCS12 to Java Key Store. I used the below command with ‘oracle’ user.

orapki wallet pkcs12_to_jks -wallet "/home/oracle/wallet" -pwd abcd123 -jksKeyStoreLoc "/home/oracle/jkswallet/ewallet.jks" -jksKeyStorepwd abcd123
Change the permission of “home/oracle/jkswallet” and “home/oracle/jkswallet/ewallet.jks" to 755 so that its accessible for ‘user1’ running WAS on same server.
On WAS create a normal ‘JDBC provider’ using ojdbc8.jar. No other jar is needed. Create a ‘Data source’ using the earlier created JDBC provider. Along with Data source also create ‘JAAS - J2C authentication data’ for username and password.
I used the following url format in ‘Data source’

jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCPS)(HOST=172.16.77.11)(PORT=2484)))(CONNECT_DATA=(SERVICE_NAME=PROD01PDB)))
Add a property in the ‘Custom properties’ under your ‘Data Source’
Name: connectionProperties
Value: javax.net.ssl.keyStore=/home/oracle/jkswallet/ewallet.jks; javax.net.ssl.keyStoreType=JKS; javax.net.ssl.keyStorePassword=abcd123; javax.net.ssl.trustStore=/home/oracle/jkswallet/ewallet.jks; javax.net.ssl.trustStoreType=JKS; javax.net.ssl.trustStorePassword=abcd123; oracle.net.ssl_version=1.2; oracle.net.ssl_server_dn_match=false

Finally the trimmed Debug Log

Source https://stackoverflow.com/questions/66853463

QUESTION

How to use the do-notation to write a trampoline function in continuation passing style?

Asked 2021-Apr-07 at 17:25

Mind the following function:

...

ANSWER

Answered 2021-Apr-07 at 17:25

Sure, you can use ContT, and as Carl pointed out in the comments, your Trampoline is a specialisation of Free, so we can reuse its Monad instance, or you can write the instances for your Trampoline yourself.

Source https://stackoverflow.com/questions/66976760

QUESTION

How to properly mutex lock a struct used by trampolines called from C

Asked 2021-Mar-29 at 19:17

I'm using this technique for C code, called from Rust, call a Rust's method back.

...

ANSWER

Answered 2021-Mar-29 at 19:17

If on_vpn_log and on_vpn_something can be updated and used separately, I'd recommend:

Source https://stackoverflow.com/questions/66844983

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

Vulnerabilities

No vulnerabilities reported

Install trampoline

Updated to version 3.1.12 on 2020, November 2. Note: goil binaries for Mac OS X are not signed. You can either recompile goil rom sources (script in goil/makefile-macosx) or self sign the binary (information here).
Linux 32 bits: goil-linux-32.zip
Linux 64 bits: goil-linux-64.zip
Windows: goil-windows.zip
Mac OS X (Intel) : goil-mac-os-x.zip
Mac OS X (Silicon): goil-mac-os-x-silicon.zip
Mac OS X Cocoa Application with editor (Intel) : CocoaGoil.app.zip
Mac OS X Cocoa Application with editor (Silicon): CocoaGoil-silicon.app.zip

Support

The OSEK-VDX portal is down since at least june 2017 because the working group has been disbanded in favor of AUTOSAR. Here are copies of a part of the documents that were available for download:.

Find more information at: