Daemon function creation daemon

Daemon function creation daemon-General Linux technology-Linux programming and kernel information. for details, see the following. Reading books and creating daemon on the Internet are extremely complicated. you have to write a lot of code.
Today, we finally found that linux has functions for creating daemon.
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Daemon function usage
Note:
Let a program run in the background.
Prototype:
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# Include

Int daemon (int nochdir, int noclose );

Parameters:
When nochdir is zero, the current directory is changed to the root directory; otherwise, it remains unchanged;
When noclose is set to zero, the standard input, standard output, and error output are redirected to/dev/null, that is, no message is output. Otherwise, the output is still performed.
Return value:
Deamon () calls fork (). if fork is successful, the parent process calls _ exit (2) to exit. Therefore, all the error messages are generated by the child process. If the function is successful, 0 is returned. otherwise,-1 is returned and errno is set.

Int main ()
{
Daemon (1, 1); // The parameters are determined based on requirements.
/* Add the work code you need to do in the background here */
}