mcs/FileDescriptor.h

   1 #ifndef _FILEDESCRIPTOR_H_
   2 #define _FILEDESCRIPTOR_H_
   3
   4 #ifdef HAVE_CONFIG_H
   5 #include "config.h"
   6 #endif
   7
   8 #include "types.h"
   9 #include "database.h"
  10 #include <stdlib.h>
  11 #include <sys/poll.h>
  12 #include <signal.h>
  13 #include <sys/time.h>
  14 #include <errno.h>
  15
  16 namespace remote { namespace mcs {
  17
  18 class FileDescriptor;
  19
  20 typedef std::map<int,FileDescriptor*> filedescriptorsbyfd_t;
  21
  22 /** Base class for handling socket connections through file descriptors.
  23  *
  24  **/
  25 class FileDescriptor
  26 {
  27         public:
  28                 /** Main service loop using poll() system call to receive fd events**/
  29                 static bool serviceLoop();
  30                 /** Handles an event on a specific file descriptor **/
  31                 virtual void handleEvent(short events) = 0;
  32                 /** Clean up and destroy a FileDescriptor object **/
  33                 virtual void destroy(bool silent=false);
  34         protected:
  35                 void setTimeout(int secs);
  36                 static void clearTimeout();
  37                 FileDescriptor(int p_fd);
  38                 virtual ~FileDescriptor();
  39                 static void buildPollMap(pollfd* map);
  40                 static void installSignalHandlers();
  41                 static void exitSignalHandler(int signo);
  42                 static RETSIGTYPE timeoutHandler(int sig);
  43                 static filedescriptorsbyfd_t instances;
  44                 static int exitSignal;
  45                 static int currentFd;
  46                 int fd;
  47
  48 };
  49
  50 }}
  51
  52 #endif