From 7e0f021a9aec35fd8e6725e87e3313b101d26f5e Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Sun, 27 Jan 2008 11:37:44 +0100 Subject: Initial import (2.0.2-6) --- reference/C/EXAMPLES/fork2.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 reference/C/EXAMPLES/fork2.c (limited to 'reference/C/EXAMPLES/fork2.c') diff --git a/reference/C/EXAMPLES/fork2.c b/reference/C/EXAMPLES/fork2.c new file mode 100644 index 0000000..77eded1 --- /dev/null +++ b/reference/C/EXAMPLES/fork2.c @@ -0,0 +1,42 @@ +/**************************************************************** + * + * Purpose: Basic example of fork. + * Author: M J Leslie + * Date: 01 Apr 96 + * + ****************************************************************/ + +#include + +int Value = 5; +main() +{ + + pid_t ForkPID; + + printf("Program start. \n"); + + ForkPID = fork(); /* Create a child and copy the parents + * parent data space, heap and stack. + */ + + /* ForkPID == -1 Fork failure. + * == 0 This is the child process. + * > 0 This is the parent process. The number given is the + * PID of the child. + */ + + if (ForkPID == 0) + { + Value += 4; + } + else + { + sleep (5); + } + printf("Value is %d\n", Value); + printf("forkPID is %d \n", ForkPID); + + printf("Program end. \n"); +} + -- cgit v1.2.3-54-g00ecf