katan | Swift playground with a micro web server | HTTP library

by marciok Swift Version: 0.0.1 License: No License

X-Ray Key Features Code Snippets(3)Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | katan Summary

katan is a Swift library typically used in Networking, HTTP applications. katan has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

A micro web server that replies "Hello world!" to every request. The idea is to show the basics steps to create a web server in Swift.

Support

Quality

Security

License

Reuse

Support

katan has a low active ecosystem.

It has 23 star(s) with 1 fork(s). There are 4 watchers for this library.

It had no major release in the last 12 months.

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

It has a neutral sentiment in the developer community.

The latest version of katan is 0.0.1

Quality

katan has no bugs reported.

Security

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

License

katan 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

katan releases are available to install and integrate.

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

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katan Key Features

No Key Features are available at this moment for katan.

katan Examples and Code Snippets

Katan,3. Create adress and bind

Swift

Lines of Code : 18

License : No License

Copy

   let port: in_port_t = 9292
   
   var address = sockaddr_in(
       sin_len: UInt8(MemoryLayout.stride),
       sin_family: UInt8(AF_INET),
       sin_port: port.bigEndian,
       sin_addr: in_addr(s_addr: in_addr_t(0)),
       sin_zero:(0, 0, 0,

Katan,5. Accept connection on socket

Swift

Lines of Code : 16

License : No License

Copy

  print("Starting HTTP server on port \(port)")
  repeat {
      var address = sockaddr()
      var length: socklen_t = 0
      
      let clientSocket = accept(socketDescriptor, &address, &length)
      if clientSocket == -1 {
          fata

Katan,6. Read socket

Swift

Lines of Code : 12

License : No License

Copy

            let resp = recv(clientSocket, &buffer, Int(buffer.count), 0)
            if resp <= 0 {
                fatalError(String(cString: UnsafePointer(strerror(errno))))
            }
            
            received = buffer.first!

Community Discussions

Trending Discussions on katan

Spark window function, create a rank column depending on values in dataset

I have created CHECK constraint but receiving error message

QUESTION

Spark window function, create a rank column depending on values in dataset

Asked 2019-Aug-07 at 08:40

For a dataset, how could I use a window function to split the rows into logical parts using a value from one of the columns?

For ex. for the given example title = Erev Rosh Hashana

The transformation would produce from this:

...

ANSWER

Answered 2019-Aug-07 at 08:38

Create a new column that contains a 1 where title equals "Erev Rosh Hashana" and 0 otherwise. Then compute the cumsum of that column ordered by the date. Finally, remove the temporary column.

This can be done as follows:

Source https://stackoverflow.com/questions/57388963

QUESTION

I have created CHECK constraint but receiving error message

Asked 2017-Feb-23 at 22:18

create sequence student_studentid_seq
increment by 10
start with 100
nocycle;

create table student 
(studentid number(10),
name varchar2(30) not null,
ss# number(9) unique,
gpa number(2,3) not null,
  constraint student_studentid_pk PRIMARY KEY (studentid),
  constraint student_gpa_ck CHECK (GPA >= 0) );

insert into student (studentid, name, ss#, gpa)
              values(student_studentid_seq.NEXTVAL,'Draze Katan', 323456789,1);

receiving error message:
Error starting at line 29 in command:
insert into student (studentid, name, ss#, gpa)
              values(student_studentid_seq.NEXTVAL,'Draze Katan', 323456789,1)
Error report:
SQL Error: ORA-01438: value larger than specified precision allowed for this column
01438. 00000 -  "value larger than specified precision allowed for this column"
*Cause:    When inserting or updating records, a numeric value was entered
           that exceeded the precision defined for the column.
*Action:   Enter a value that complies with the numeric column's precision,
           or use the MODIFY option with the ALTER TABLE command to expand
           the precision.

...

ANSWER

Answered 2017-Feb-23 at 22:18

The issue is in the way you create the table, in particular in the column GPA.

You are using number(2, 3), which looks like "build a number with 2 total digits and 3 decimal digits".

In oracle documentation you find a better explanation about the NUMBER data type, its attributes and what things like number(2,3) mean:

Specify a fixed-point number using the following form:

NUMBER(p,s) where:

p is the precision, or the maximum number of significant decimal digits, where the most significant digit is the left-most nonzero digit, and the least significant digit is the right-most known digit. Oracle guarantees the portability of numbers with precision of up to 20 base-100 digits, which is equivalent to 39 or 40 decimal digits depending on the position of the decimal point.

s is the scale, or the number of digits from the decimal point to the least significant digit. The scale can range from -84 to 127.

Positive scale is the number of significant digits to the right of the decimal point to and including the least significant digit.

Negative scale is the number of significant digits to the left of the decimal point, to but not including the least significant digit. For negative scale the least significant digit is on the left side of the decimal point, because the actual data is rounded to the specified number of places to the left of the decimal point. For example, a specification of (10,-2) means to round to hundreds.

Scale can be greater than precision, most commonly when e notation is used. When scale is greater than precision, the precision specifies the maximum number of significant digits to the right of the decimal point. For example, a column defined as NUMBER(4,5) requires a zero for the first digit after the decimal point and rounds all values past the fifth digit after the decimal point.

For example:

Source https://stackoverflow.com/questions/42426678

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

Vulnerabilities

No vulnerabilities reported

Install katan

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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