Command Class Reference

#include <fetch.h>

Public Types
typedef std::function< void(Command)>	func_type

Public Member Functions
string	getOutput ()
string	getErrorOutput ()
int	getOutputLines ()
int	getExitCode ()

Static Public Member Functions
static void	wait ()
static vector< runtime_error > &	getExceptions ()
static void	exec_async (const string &cmd, const func_type &func)
static void	exec_async (const Path &cmd, const string &arg, const func_type &func)
static Command	exec (const string &cmd)

Detailed Description

Command executes a command in a subshell(shell runs on a forked process).

Sample code:

auto c = Command::exec("ls -l");
if (c.getExitcode() == 0) {
    std::cout << c.getOutput();
}

Member Function Documentation

exec()

static Command Command::exec ( const string &  cmd )

inlinestatic

Executes the specified command.

Parameters

cmd	containing the command to call and its arguments

Returns

Command object for getting the results.

Exceptions

runtime_error

failed to popen(3)

exec_async() [1/2]

static void Command::exec_async ( const Path &  cmd, const string &  arg, const func_type &  func  )

inlinestatic

Executes the specified command in a new thread.

Parameters

cmd	containing the command
arg	arguments
func	to be performed after cmd is finished

exec_async() [2/2]

static void Command::exec_async ( const string &  cmd, const func_type &  func  )

inlinestatic

Executes the specified command in a new thread.

Parameters

cmd	containing the command to call and its arguments
func	to be performed after cmd is finished

getErrorOutput()

string Command::getErrorOutput ( )

inline

Returns

get contents written by the command to standard error output

getExceptions()

static vector<runtime_error>& Command::getExceptions ( )

inlinestatic

Returns

exceptions

getExitCode()

int Command::getExitCode ( )

inline

Returns

get the exit code of the command.

getOutput()

string Command::getOutput ( )

inline

Returns

get contents written by the command to standard output

getOutputLines()

int Command::getOutputLines ( )

inline

Returns

get the new line counts of the output.

wait()

static void Command::wait ( )

inlinestatic

Wait for all threads to be finished.

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The documentation for this class was generated from the following files:

• src/fetch.h
• src/fetch.cpp