process.hh
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00001 #ifndef UTILMM_PROCESS_H
00002 #define UTILMM_PROCESS_H
00003 #include "utilmm/config/config.h"
00004 #include <utilmm/system/system.hh>
00005 #include <boost/noncopyable.hpp>
00006 #include <boost/filesystem/path.hpp>
00007 
00008 #include <string>
00009 #include <map>
00010 #include <list>
00011 #include <signal.h>
00012 
00013 namespace utilmm
00014 {
00020     class process
00021     {
00022     public:
00023         static const int InvalidHandle = -1;
00025         enum Stream { Stdout = 1, Stderr = 2 };
00026 
00027     private:
00028         typedef std::list<process*>::iterator ProcessHandle;
00029         ProcessHandle m_handle;
00030 
00031         boost::filesystem::path m_wdir;
00032         typedef std::list<std::string> CommandLine;
00033         CommandLine m_cmdline;
00034 
00035         typedef std::map<std::string, std::string> Env;
00036         Env m_env;
00037 
00038         struct output_file : public utilmm::auto_close
00039         {
00040             bool is_null() const;
00041             void redirect(FILE* stream);
00042         };
00043         output_file m_stdout, m_stderr;
00044         output_file& get_stream(Stream stream);
00045 
00046         bool  m_running;
00047         pid_t m_pid;
00048         bool  m_normalexit;
00049         int   m_status;
00050 
00051         bool m_do_setpgid;
00052         pid_t m_pgid;
00053 
00054         bool wait(bool hang);
00055         void send_child_error(int fd, int error_type);
00056         void process_child_error(int fd);
00057 
00058     public:
00059         class already_running : public std::exception {};
00060     
00061         process();
00062         ~process();
00063 
00065         void set_workdir(boost::filesystem::path const& dir);
00069         boost::filesystem::path workdir() const;
00070         
00073         std::list<std::string> cmdline() const;
00075         void push(const std::string& arg);
00079         process& operator << (std::string const& newarg);
00081         void clear();
00082 
00087         void start();
00088 
00095         void signal(int signo = SIGINT);
00096 
00098         static void install_sigint_handler();
00099 
00102         static void killall();
00103         
00106         void wait();
00107 
00115         void detach();
00116 
00120         void erase_redirection(Stream stream);
00121 
00144         void redirect_to( Stream stream, int   handle, bool auto_close = true);
00146         void redirect_to( Stream stream, FILE* handle, bool auto_close = true);
00148         void redirect_to( Stream stream, boost::filesystem::path const& file);
00149 
00150 
00157         void set_environment(const std::string& key, const std::string& value);
00162         std::string environment(const std::string& key) const;
00164         void clear_environment();
00165 
00167         void set_pgid(pid_t pid);
00168 
00170         bool exit_normal() const;
00172         int exit_status() const;
00173 
00175         pid_t pid() const;
00177         bool  running();
00178     };
00179 }
00180 
00181 #endif
00182 


utilmm
Author(s): Sylvain Joyeux/sylvain.joyeux@m4x.org
autogenerated on Mon Oct 6 2014 03:17:01