typedef pbase_type::pmode pmode

Type used to specify how to connect to the process. typedef pbase_type::argv_type argv_type

Type used to hold the arguments for a command. typedef int fd_type

Type used for file descriptors. typedef int fd_type

Type used for file descriptors.

basic_pstream ()

Default constructor, creates an uninitialised stream. basic_pstream (const std::string &command, pmode mode=pstdout|pstdin)

Constructor that initialises the stream by starting a process. basic_pstream (const std::string &file, const argv_type &argv, pmode mode=pstdout|pstdin)

Constructor that initialises the stream by starting a process. ~basic_pstream ()

Destructor. void open (const std::string &command, pmode mode=pstdout|pstdin)

Start a process. void open (const std::string &file, const argv_type &argv, pmode mode=pstdout|pstdin)

Start a process. basic_pstream & out ()

Set streambuf to read from process' stdout. basic_pstream & err ()

Set streambuf to read from process' stderr. void close ()

Close the pipe. bool is_open () const

Report whether the stream's buffer has been initialised. const std::string & command () const

Return the command used to initialise the stream. streambuf_type * rdbuf () const

Return a pointer to the stream buffer.

static const pmode pstdin = std::ios_base::out

Write to stdin. static const pmode pstdout = std::ios_base::in

Read from stdout. static const pmode pstderr = std::ios_base::app

Read from stderr. static const pmode pstdin = std::ios_base::out

Write to stdin. static const pmode pstdout = std::ios_base::in

Read from stdout. static const pmode pstderr = std::ios_base::app

Read from stderr.

typedef basic_pstreambuf< CharT, Traits > streambuf_type

enum { bufsz = 32 }

enum { pbsz = 2 }

enum { bufsz = 32 }

enum { pbsz = 2 }

void do_open (const std::string &command, pmode mode)

Start a process. void do_open (const std::string &file, const argv_type &argv, pmode mode)

Start a process.

std::string command_

The command used to start the process. streambuf_type buf_

The stream buffer.

Class template for Bidirectional PStreams.

Writing to a pstream opened with pmode pstdin writes to the standard input of the command. Reading from a pstream opened with pmode pstdout and/or pstderr reads the command's standard output and/or standard error. Any of the process' stdin, stdout or stderr that is not connected to the pstream (as specified by the pmode) will be the same as the process that created the pstream object, unless altered by the command itself.

Constructor that initialises the stream by starting a process.

Initialises the stream buffer by calling do_open() with the supplied arguments.

Parameters: command a string containing a shell command.

mode the I/O mode to use when opening the pipe.

See also: do_open(const std::string&, pmode)

Constructor that initialises the stream by starting a process.

Initialises the stream buffer by calling do_open() with the supplied arguments.

Parameters: file a string containing the pathname of a program to execute.

argv a vector of argument strings passed to the new program.

mode the I/O mode to use when opening the pipe.

See also: do_open(const std::string&, const argv_type&, pmode)

Destructor.

Closes the stream and waits for the child to exit.

Close the pipe.

Calls rdbuf->close() and sets failbit on error.

Return the command used to initialise the stream.

Returns: a string containing the command used to initialise the stream.

Start a process.

Calls rdbuf()->open( file, argv, mode ) and sets failbit on error.

Parameters: file a string containing the pathname of a program to execute.

argv a vector of argument strings passed to the new program.

mode the I/O mode to use when opening the pipe.

See also: basic_pstreambuf::open(const std::string&, const argv_type&, pmode)

Start a process.

Calls rdbuf()->open( command , mode ) and sets failbit on error.

Parameters: command a string containing a shell command.

mode the I/O mode to use when opening the pipe.

See also: basic_pstreambuf::open(const std::string&, pmode)

Set streambuf to read from process' stderr.

Returns: *this

Report whether the stream's buffer has been initialised.

Returns: rdbuf()->is_open().

See also: basic_pstreambuf::is_open()

Start a process.

Calls do_open( file , argv , mode ).

Parameters: file a string containing the pathname of a program to execute.

argv a vector of argument strings passed to the new program.

mode the I/O mode to use when opening the pipe.

See also: do_open(const std::string&, const argv_type&, pmode)

Start a process.

Calls do_open( command , mode ).

Parameters: command a string containing a shell command.

mode the I/O mode to use when opening the pipe.

See also: do_open(const std::string&, pmode)

Set streambuf to read from process' stdout.

Returns: *this

Return a pointer to the stream buffer.

Returns: a pointer to the private stream buffer member.