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//
#ifndef _vdkchildtask_h
// put your code below here
#define _vdkchildtask_h
#include <vdk/vdkobj.h>
#include <vdk/value_sem_list.h>
#include <vdk/siglisthandle.h>
#include <vdk/vdkinchannel.h>
#define _GNU_SOURCE
#include <fcntl.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <sys/wait.h>
#define CHILD_TASK_DATA_SIGNAL (user_signal-1023)
#define CHILD_TASK_DIED_SIGNAL (user_signal-1022)
class VDKChildTask;
class VDKPid
{
public:
pid_t pid;
VDKChildTask* task;
VDKPid (pid_t pid = (pid_t) -1, VDKChildTask* task = NULL);
~VDKPid () {}
bool operator == (VDKPid& p)
{ return (pid == p.pid); }
bool operator < (VDKPid& p)
{ return (pid < p.pid); }
};
typedef VDKValueList <VDKPid> PIDLIST;
typedef VDKValueListIterator <VDKPid> PidListIterator;
class VDKChildTask: public VDKObject
{
private:
char* data_buffer;
static void reaper(int);
static void plumber(int);
pid_t pid;
int xmit;
static PIDLIST PidList;
protected:
bool DoIO (VDKObject*);
public:
VDKChildTask (VDKForm* owner);
virtual ~VDKChildTask ();
pid_t StartChild (char* args[], bool duplex = false);
char* GetData () { return data_buffer; }
bool SendData (char* buffer);
// hopefully converted into properties
inline int Pid() {return pid;}
inline void Pid(int p) {pid = p;}
inline int Xmit() {return pid;}
inline void Xmit(int x) {xmit = x;}
DECLARE_SIGNAL_LIST (VDKChildTask);
};
//
#endif
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