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Make io_data_t pure virtual, its constructor protected

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This commit is contained in:
Cheer Xiao 2013-01-15 17:39:20 +08:00
parent 00b6431ad9
commit 9808829ece
2 changed files with 16 additions and 17 deletions
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2
io.cpp
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@ -51,7 +51,7 @@ Utilities for io redirection.
#include "io.h" #include "io.h"
void io_data_t::print() const io_data_t::~io_data_t()
{ {
} }

31
io.h
View file

@ -10,7 +10,7 @@ using std::tr1::shared_ptr;
*/ */
enum io_mode_t enum io_mode_t
{ {
IO_INVALID, IO_FILE, IO_PIPE, IO_FD, IO_BUFFER, IO_CLOSE IO_FILE, IO_PIPE, IO_FD, IO_BUFFER, IO_CLOSE
}; };
/** Represents an FD redirection */ /** Represents an FD redirection */
@ -21,27 +21,26 @@ private:
io_data_t(const io_data_t &rhs); io_data_t(const io_data_t &rhs);
void operator=(const io_data_t &rhs); void operator=(const io_data_t &rhs);
public: protected:
/** Type of redirect */ io_data_t(io_mode_t m, int f) :
io_mode_t io_mode;
/** FD to redirect */
int fd;
virtual void print() const;
/** Set to true if this is an input io redirection */
bool is_input;
io_data_t(io_mode_t m = IO_INVALID, int f=0) :
io_mode(m), io_mode(m),
fd(f), fd(f),
is_input(0) is_input(0)
{ {
} }
virtual ~io_data_t() public:
{ /** Type of redirect */
} io_mode_t io_mode;
/** FD to redirect */
int fd;
virtual void print() const = 0;
/** Set to true if this is an input io redirection */
bool is_input;
virtual ~io_data_t() = 0;
}; };
class io_close_t : public io_data_t class io_close_t : public io_data_t