Fork | C # toolkit , C # tool classes
kandi X-RAY | Fork Summary
kandi X-RAY | Fork Summary
ac# utility library. C# toolkit, C# tool classes, common methods, system API, file processing, encryption and decryption, Winform beautification (C# Tools)
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Fork
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Fork Examples and Code Snippets
Lines of Code : 5License : Permissive (MIT License)
Copypublic static long forkJoinSum(long n) {
long[] numbers = LongStream.rangeClosed(1, n).toArray();
ForkJoinTask task = new ForkJoinSumCalculator(numbers);
return FORK_JOIN_POOL.invoke(task);
} Community Discussions
Trending Discussions on Fork
QUESTION
I understand that after calling fork() the child process inherits the per-process file descriptor table of its parent (pointing to the same system-wide open file tables). Hence, when opening a file in a parent process and then calling fork(), both the child and parent can write to that file without overwriting one another's output (due to a shared offset in the open-file table entry).
However, suppose that, we call open() on some file after a fork (in both the parent and the child). Will this create a separate entries in the system-wide open file table, with a separate set of offsets and read-write permission flags for the child (despite the fact that it's technically the same file)? I've tried looking this up and I don't seem to be able to find a clear answer.
I'm asking this mainly since I was playing around with writing to files, and it seems like only one the outputs of the parent and child ends up in the file in the aforementioned situation. This seemed to imply that there are separate entries in the open file table for the two separate open calls, and hence separate offsets, so the slower process overwrites the output of the other process.
To illustrate this, consider the following code:
...ANSWER
Answered 2021-May-03 at 20:22There is a difference between a file and a file descriptor (FD).
All processes share the same files. They don't necessarily have access to the same files, and a file is not its name, either; two different processes which open the same name might not actually open the same file, for example if the first file were renamed or unlinked and a new file were associated with the name. But if they do open the same file, it's necessarily shared, and changes will be mutually visible.
But a file descriptor is not a file. It refers to a file (not a filename, see above), but it also contains other information, including a file position used for and updated by calls to read and write. (You can use "positioned" read and write, pread and pwrite, if you don't want to use the position in the FD.) File descriptors are shared between parent and child processes, and so the file position in the FD is also shared.
Another thing stored in the file descriptor (in the kernel, where user processes can't get at it) is the list of permitted actions (on Unix, read, write, and/or execute, and possibly others). Permissions are stored in the file directory, not in the file itself, and the requested permissions are copied into the file descriptor when the file is opened (if the permissions are available.) It's possible for a child process to have a different user or group than the parent, particularly if the parent is started with augmented permissions but drops them before spawning the child. A file descriptor for a file opened in this manner still has the same permissions uf it is shared with a child, even if the child would itself be able to open the file.
QUESTION
Take the following build.xml snippet:
ANSWER
Answered 2021-Jun-14 at 22:41maxmemory specifies the maximum heap size available to the Java VM.
QUESTION
In C I know what arguments passed to the program start with index 1. Let's suppose the first argument (which is in index 1) is some arbitrary text, argument 2 in program location/name and ALL others are arguments for that program (I don't know any limit)
After I forked a child process how can I make it run that program?
This is an example of what I used to do when there were no arguments passed:
...ANSWER
Answered 2021-Jun-14 at 22:54You can use the execv variant of the exec family of calls. From the execv man page:
The execv(), execvp(), and execvpe() functions provide an array of pointers to null-terminated strings that represent the argument list available to the new program. The first argument, by convention, should point to the filename associated with the file being executed. The array of pointers must be terminated by a NULL pointer.
Since argv is already an array in the required format all you need to do is skip the args you are not interested in:
QUESTION
Another branch was created on the upstream repo. Let's call it features/demo. Three branches now exist, Master, Develop and features/demo.
My forked repo only has Master and Develop. The forked repo is set as the origin and is my local cloned copy.
How do I pull the upstream branch into my local? Every time I try it wants to merge into Develop or Master because that's what any new branch I make is checked out from.
Edit:
...ANSWER
Answered 2021-Jun-14 at 21:54How do I pull the upstream branch into my local? Every time I try it wants to merge
That's the definition of pull as delivered (with factory-default options): fetch and merge.
You just want to fetch. At the factory default settings,
QUESTION
I am using Material-UI and trying to make a Grid that contains two Grid Items:
- a List of dozens of ListItems.
- a static control panel.
Here is an example minimal sandbox that I'm starting with: https://codesandbox.io/s/material-ui-grid-center-vertically-v2-forked-cju60?file=/index.js
In my ideal world, I would like Column 1 to scroll and Column 2 to remain in place. That is, the height of the parent Grid would match the green column's height and the yellow column would overflow into a scroll of a matching height.
Unfortunately, I cannot set a height (or max-height) of the Grid itself (with something like style={{maxHeight: "500px", overflow:"scroll"}} as this causes both columns to scroll. Further, I cannot set a fixed height for the green column, as the user can dynamically add and remove selectors from that column.
Is the functionality I'm looking for possible?
...ANSWER
Answered 2021-Jun-14 at 20:24In order for the scroll to work, you'll have to have a "fixed" height somewhere, either on the parent, or on the yellow Grid. Otherwise the browser doesn't know where to cut off for the scrollbar to show.
An easy option is to set the height (100vh or any fixed pixel) on parent, then let both children take 100% of the parent's height.
Another option is to have a max-height on the yellow Grid (100vh as in the example below) and let the parent have height: fit-content so it takes exactly the same height as the yellow Grid, and the green Grid, being display: block should automatically take up all the available space in the parent.
CodeSandbox example: https://codesandbox.io/s/material-ui-grid-center-vertically-v2-forked-26e75?file=/index.js
QUESTION
I am trying to compile jasperreports templates together with my java code. To do this I use a private fork of this plugin that is adjusted to work with gradle properties. Now I am trying to find a way to have this plugin provide resources that will be put in the resulting jar file and that are created using the compile and runtime classpaths of the current project.
...ANSWER
Answered 2021-Jun-14 at 07:25I managed to solve my problem by not including project.sourceSets.main.runtimeClasspath and adding project.compileJava.classpath instead of project.sourceSets.main.compileClasspath.
Thus my build.gradle contained the following code instead of the first section of the question
QUESTION
I am trying to intercept 401 errors in axios for protected routes, but my interceptor seems to 'steal' the catch() chain away from all HTTP requests that return an error, as well as losing the error payload they contain (which the UI uses to display the type of error). This breaks all the down-stream component methods code are using Vuex actions to login, register, etc.
A possible related symptom is that I don't seem to be able to pass a 'real' reference to the currentRoute object to check the meta attribute for protected status. Instead I have to use ._value. to get at the values of the route's meta property.
main.js
...ANSWER
Answered 2021-Jun-13 at 23:06The problem is your interceptor is simply returning error (effectively swallowing it), but it needs to be a Promise for the .then/.catch chaining. That is, the interceptor needs to return the result in Promise.resolve or Promise.reject:
QUESTION
Trying to figure out what happens in particular cases when there are multiple branches and/or a fork off of a master branch and how that might cause conflicts.
Say I have the following case where black is the master branch, red is a branch, and green is a branch:
The green branch occurs after the red branch and is merged back into main before red. When red is merged - will there be conflicts?
Now say that red is a branch but green is a fork. Red branches before green is forked. Green has makes code changes and then sends a pull request to the master, who accepts and imports changes. the red merges back into main. Will there be conflicts in that case?
Thanks in advance.
...ANSWER
Answered 2021-Jun-13 at 20:51The answer is neither yes nor no, but it depends.
A conflict occurs when two developers, regardeless of the branch in which they operate, change the same line of code, or a file is deleted by one, but changed by the other.
In this article at https://www.atlassian.com/git/tutorials/using-branches/merge-conflicts#:~:text=Conflicts%20generally%20arise%20when%20two,automatically%20determine%20what%20is%20correct.&text=Git%20will%20mark%20the%20file,and%20halt%20the%20merging%20process. you may find a lot of information about this topic.
QUESTION
I've written a Pi Hardware Interface Server (phis) that uses http protocol to control the hardware connected to my Raspberry Pi (relays, analog measurements, etc). It processes simple requests and responds with plain text. It has been working flawlessly for years and I have written extensive browser-based interfaces to the system. Here's the basic structure:
...ANSWER
Answered 2021-Jun-13 at 18:07Found the answer in this post ("Duh" moment the instant I saw it!)
I had forgotten to close the connected and listening sockets in the forked child, which were inherited by the spawned daemon and stayed open as long as it runs. Here's the code I'm using to spawn a process that will be left running (daemonized):
QUESTION
I have a PrivateRoute component,
ANSWER
Answered 2021-Jun-13 at 16:02This works now.
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