wait.h

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#pragma once
 
#define WNOHANG 0x00000001
 
#define WUNTRACED 0x00000002
 
#define WIFSIGNALED(status) (!WIFSTOPPED(status) && !WIFEXITED(status))
 
#define WIFSTOPPED(status) (((status)&0xff) == 0x7f)
 
#define WEXITSTATUS(status) (((status)&0xff00) >> 8)
 
#define WTERMSIG(status) ((status)&0x7f)
 
#define WIFEXITED(status) (WTERMSIG(status) == 0)
 
#define WSTOPSIG(status) (WEXITSTATUS(status))
 
//==== Task States ============================================================
#define TASK_RUNNING         0x00     
#define TASK_INTERRUPTIBLE   (1 << 0) 
#define TASK_UNINTERRUPTIBLE (1 << 1) 
#define TASK_STOPPED         (1 << 2) 
#define TASK_TRACED          (1 << 3) 
#define EXIT_ZOMBIE          (1 << 4) 
#define EXIT_DEAD            (1 << 5) 
//==============================================================================
 
extern pid_t wait(int *status);
 
extern pid_t waitpid(pid_t pid, int *status, int options);