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// child_process.h -- description
#ifndef _CHILD_PROCESS_H_
#define _CHILD_PROCESS_H_
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <vector>
using namespace std;
namespace util {
class ChildProcess {
public:
explicit ChildProcess(const char *commandline)
: commandline_(strdup(commandline)),
name_(NULL),
running_(false),
pid_(-1),
to_(NULL),
from_(NULL),
child_ready_(false) {}
virtual ~ChildProcess() {
Stop();
free(commandline_);
commandline_ = NULL;
}
virtual void Start();
virtual void Stop();
void Send(char *line);
void Receive(char *line, int size);
bool Poll();
void Flush();
private:
void ParseCommandline(vector<char *> *args);
char *commandline_;
char *name_;
bool running_;
pid_t pid_;
int write_pipe_[2];
int read_pipe_[2];
FILE *to_;
FILE *from_;
volatile bool child_ready_;
};
} // namespace
#endif /* _CHILD_PROCESS_H_ */
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