GLD-Fork 1.9 (Default branch)

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I understand that fork create a child but I need very simple example that make child useful.... I mean how will make the program faster anyone explain with code plz using C plz

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does fork() spawn only the parent process, what if fork() is looped, does it spawn the parent and the child?

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Hi, I wrote a simple program for understanding the fork command. The code is as below int main(void) { fork(); printf("hi 1 \n"); fork(); printf("hi 2 \n"); fork(); printf("hi 3 \n"); } I am getting a variation in the number of times the printf is called if i remove the \n from each...

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hi all About this code for (i = 1; i < n; i++) if ((childpid = fork()) <= 0) break; I really can't understand the output . and the way fork () return the value . how about the process Id ,the child process Id and the parent ID in this case so please answer me soon

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Hello all. I'm developing a filetransfer application, which is supposed to work sort of like dcc, with multiple transfers etc. Now i wonder what the best way to manage the transfers is. Should i fork() for each new transfer, hogging loads of memory or use pthreads? Maybe I can use select to see...

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#include <stdio.h> #include <string.h> #include <sys/types.h> #define MAX_COUNT 200 #define BUF_SIZE 100 void main(void) { pid_t pid; int i; char buf; fork(); pid = getpid(); for (i = 1; i <= MAX_COUNT; i++) { sprintf(buf,...

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LEARN ABOUT HPUX

pthread_atfork

pthread_atfork(3T)														pthread_atfork(3T)

NAME

       pthread_atfork() - register fork handlers.

SYNOPSIS

PARAMETERS

	      prepare	This function is called before performing the

	      parent	This function is called in the parent process after performing the

	      child	This function is called in the child process after performing the

DESCRIPTION

       The  function allows an application to install fork handlers.  These fork handlers will be called before and after a operation.	These han-
       dlers will be called in the context of the thread calling Similar to the handlers, the application does not need to do anything special for
       these fork handlers to be called.  They will be invoked by the system when a operation occurs.

       The  function is called before the operation in the parent process.  The function is called after the operation in the parent process.  The
       function is called after the operation in the child process.

       If a fork handler is not needed in one or more of these three places, the appropriate fork handler parameter may be set to NULL.

       A process may install multiple fork handling functions.	The and fork handlers will be called in the order in  which  they  were  installed
       (i.e., The fork handlers will be called in the opposite order (i.e.,

RETURN VALUE

       Upon successful completion, returns zero. Otherwise, an error number is returned to indicate the error (the variable is not set).

ERRORS

       If any of the following occur, the function returns the corresponding error number:

	      [ENOMEM]	     There is insufficient table space to install the fork handlers.

AUTHOR

       was derived from the IEEE POSIX P1003.1c standard.

SEE ALSO

       fork(2), atexit(3).

STANDARDS CONFORMANCE

								  Pthread Library						pthread_atfork(3T)

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