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author | William R. Otte <wotte@dre.vanderbilt.edu> | 2006-07-24 15:50:30 +0000 |
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committer | William R. Otte <wotte@dre.vanderbilt.edu> | 2006-07-24 15:50:30 +0000 |
commit | c44379cc7d9c7aa113989237ab0f56db12aa5219 (patch) | |
tree | 66a84b20d47f2269d8bdc6e0323f338763424d3a /ACE/ace/Service_Manager.h | |
parent | 3aff90f4a822fcf5d902bbfbcc9fa931d6191a8c (diff) | |
download | ATCD-c44379cc7d9c7aa113989237ab0f56db12aa5219.tar.gz |
Repo restructuring
Diffstat (limited to 'ACE/ace/Service_Manager.h')
-rw-r--r-- | ACE/ace/Service_Manager.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/ACE/ace/Service_Manager.h b/ACE/ace/Service_Manager.h new file mode 100644 index 00000000000..c49449bb820 --- /dev/null +++ b/ACE/ace/Service_Manager.h @@ -0,0 +1,120 @@ +// -*- C++ -*- + +//============================================================================= +/** + * @file Service_Manager.h + * + * $Id$ + * + * @author Douglas C. Schmidt <schmidt@cs.wustl.edu> + */ +//============================================================================= + +#ifndef ACE_SERVICE_MANAGER_H +#define ACE_SERVICE_MANAGER_H +#include /**/ "ace/pre.h" + +#include "ace/SOCK_Stream.h" + +#if !defined (ACE_LACKS_PRAGMA_ONCE) +# pragma once +#endif /* ACE_LACKS_PRAGMA_ONCE */ + +#include "ace/SOCK_Acceptor.h" +#include "ace/INET_Addr.h" +#include "ace/Service_Object.h" + +ACE_BEGIN_VERSIONED_NAMESPACE_DECL + +/** + * @class ACE_Service_Manager + * + * @brief Provide a standard ACE service for managing all the services + * configured in an ACE_Service_Repository. + * + * This implementation is simple and just handles each client + * request one at a time. There are currently 3 types of requests: + * + List services: If the string "help" is sent, return a list of all + * the services supported by the Service Configurator. + * + Reconfigure: If the string "reconfigure" is sent trigger a + * reconfiguration, which will re-read the local <svc.conf> file. + * + Process directive: If neither "help" nor "reconfigure" is sent, + * simply treat the incoming string as a process directive and pass + * it along to <ACE_Service_Config::process_directive>. This allows + * remote configuration via command-line instructions like + * % echo suspend My_Remote_Service | telnet hostname 3911 + * + * Each request is associated with a new connection, which is closed + * when the request is processed. In addition, you must be using the + * singleton <ACE_Reactor::instance> in order to trigger + * reconfigurations. + */ +class ACE_Export ACE_Service_Manager : public ACE_Service_Object +{ +public: + // = Initialization and termination hooks. + /// Constructor. + ACE_Service_Manager (void); + + /// Destructor. + ~ACE_Service_Manager (void); + +protected: + // = Perform the various meta-services. + + /// Trigger a reconfiguration of the Service Configurator by + /// re-reading its local <svc.conf> file. + virtual int reconfigure_services (void); + + /// Determine all the services offered by this daemon and return the + /// information back to the client. + virtual int list_services (void); + + // = Dynamic linking hooks. + virtual int init (int argc, ACE_TCHAR *argv[]); + virtual int info (ACE_TCHAR **info_string, size_t length) const; + virtual int fini (void); + + // = Scheduling hooks. + virtual int suspend (void); + virtual int resume (void); + + /// Dump the state of an object. + void dump (void) const; + + /// Declare the dynamic allocation hooks. + ACE_ALLOC_HOOK_DECLARE; + +protected: + int open (const ACE_INET_Addr &sia); + + // = Demultiplexing hooks. + virtual ACE_HANDLE get_handle (void) const; + virtual int handle_input (ACE_HANDLE fd); + virtual int handle_close (ACE_HANDLE fd, ACE_Reactor_Mask); + virtual int handle_signal (int signum, siginfo_t *, ucontext_t *); + + /// Handle one request. + virtual void process_request (ACE_TCHAR *request); + + /// Connection to the client (we only support one client connection + /// at a time). + ACE_SOCK_Stream client_stream_; + + /// Acceptor instance. + ACE_SOCK_Acceptor acceptor_; + + /// Keep track of the debugging level. + int debug_; + + /// The signal used to trigger reconfiguration. + int signum_; + + /// Default port for the Acceptor to listen on. + static u_short DEFAULT_PORT_; +}; + +ACE_END_VERSIONED_NAMESPACE_DECL + +#include /**/ "ace/post.h" +#endif /* _SERVICE_MANAGER_H */ |