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authorchatty1994-05-10 11:16:46 +0000
committerchatty1994-05-10 11:16:46 +0000
commitc3af6aff10dc45e0530e41c6f2f6d049322264ab (patch)
tree8520f99f4ea4c2cccb5ad67d168d0f5346ce85b8 /comm/OLD/Server.cc
parentd73a544e118c8dcf0c391ea1e853c37db9943c3b (diff)
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Merged Setup with constructor
HandleNew -> CreateClient replaced TRUE/FALSE by true/false
Diffstat (limited to 'comm/OLD/Server.cc')
-rw-r--r--comm/OLD/Server.cc141
1 files changed, 24 insertions, 117 deletions
diff --git a/comm/OLD/Server.cc b/comm/OLD/Server.cc
index 82e256a..9bc6cec 100644
--- a/comm/OLD/Server.cc
+++ b/comm/OLD/Server.cc
@@ -17,7 +17,7 @@
/*?class UchServer
The class \typ{UchServer} derives from \typ{UchStream}.
It is associated to a channel set to monitor the connected clients in parallel.
-Whenever a new client connects to the server, the virtual function \fun{HandleNew} is called.
+Whenever a new client connects to the server, the virtual function \fun{CreateClient} is called.
This function must return a pointer to an object of class \typ{UchClient} (or a derived class of \typ{UchClient}).
Because the server and the clients may be on different machines with different architectures,
@@ -38,21 +38,10 @@ Thus the virtual function \fun{Delete} is redefined to achieve a clean removal f
// copy
//
-/*?
-Construct an empty server port.
-?*/
-UchServer :: UchServer ()
-: UchStream (),
- Clients (),
- Mpx (0)
-{
-}
-
/*?nodoc?*/
UchServer :: UchServer (const UchServer& sp)
: UchStream (sp),
- Clients (),
- Mpx (0)
+ Clients ()
{
}
@@ -62,11 +51,16 @@ When using Internet domain addresses, \var{a} should refer to
the wildcard address so that clients can connect from any machine.
This can be done with the instruction \com{new UchInetAddress(ANYADDR)}.
?*/
-UchServer :: UchServer (UchAddress* a)
+UchServer :: UchServer (UchBaseMultiplexer& m, UchAddress* a)
: UchStream (a, 0),
- Clients (),
- Mpx (0)
+ Clients ()
{
+ if (Listen () < 0) {
+ SysError (ErrWarn, "UchServer::UchServer");
+ } else {
+ SetMode (IORead);
+ m.Add (this);
+ }
}
/*?nodoc?*/
@@ -76,7 +70,6 @@ UchServer :: ~UchServer ()
while (cl = Clients.First ())
cl->Delete ();
- Mpx = 0; // will delete it if necessary
}
/*?nodoc?*/
@@ -101,36 +94,6 @@ UchServer :: RemoveClient (UchClient* cl)
Error (ErrWarn, "UchServer::RemoveClient", "not owned by this server");
}
-/*?
-Bind the socket and listen to it.
-Initialize the channel set of the server to \var{cs}, or create a new one if \var{cs} is 0.
-The channel set is used by the server to read and process messages from its clients:
-whenever a client connects to the server, an instance of \typ{UchClient} is added to the channel set.
-Whenever data is readable from a client, it is read in an input buffer and processed as soon
-as a full message is received.
-Whenever a client closes the connection, it is removed from the channel set of the server.
-This function returns TRUE if all went well, else it calls \fun{SysError} and returns FALSE.
-You may want to pass your own channel set if you are already multiplexing
-i/o on that channel set. For instance, you may have several \typ{UchServer} objects
-in your application.
-A smart pointer to the channel set is actually kept in the server, so that it can be shared
-securely.
-?*/
-bool
-UchServer :: Setup (UchBaseMultiplexer* cs)
-{
- if (Listen () < 0) {
- SysError (ErrWarn, "UchServer::Setup");
- return FALSE;
- }
- SetMode (IORead);
- if (! cs)
- cs = new UchMultiplexer;
- Mpx = cs;
- Mpx->Add (this);
-
- return TRUE;
-}
/*?
This function removes the server from its channel set.
@@ -155,21 +118,13 @@ UchServer :: Unlisten ()
void
UchServer :: HandleRead ()
{
-// cannot redefine Accept to return UchClient*, so this does not work :
-// UchClient* cl = Accept ();
-// need to delete the channel created by Accept, so this does not work either :
-// UchClient* cl = new UchClient (Accept ());
-// so we do this (less elegant ...) :
- UchChannel* ch = Accept ();
- if (! ch) {
+ int fd = Accept ();
+ if (fd < 0) {
SysError (ErrWarn, "UchServer::HandleRead: Accept");
return;
}
- UchClient* cl = HandleNew (ch);
- delete ch;
+ UchClient* cl = CreateClient (fd);
- cl->SetMode (IOReadSelect);
- cl->SetOwner (this);
Clients.Append (cl);
if (Mpx)
Mpx->Add (cl);
@@ -178,8 +133,8 @@ UchServer :: HandleRead ()
// Default virtual function for handling new connections
// If a class MY_CLIENT is derived from UchClient,
// a class MY_SERVER must be derived from UchServer,
-// with MY_SERVER::HandleNew (UchChannel* ch)
-// doing at least a return new MY_CLIENT (ch)
+// with MY_SERVER::CreateClient
+// doing at least a return new MY_CLIENT (fd)
//
/*?
This virtual function is called whenever a new client connects to the server.
@@ -189,9 +144,9 @@ say \typ{MY\_CLIENT}, in which case it should be redefined in a derived class
of \typ{UchServer} to return \com{new MY\_CLIENT(ch)}.
?*/
UchClient*
-UchServer :: HandleNew (UchChannel* ch)
+UchServer :: CreateClient (int fd)
{
- return new UchClient (ch);
+ return new UchClient (*this, fd);
}
/*?
@@ -231,29 +186,10 @@ UchServer :: Error (errtype how, const char* who, const char* what)
::Error (how, who, what);
}
-/*?
-Setup the server if necessary, then scan and process its channel set
-by calling \fun{LoopScan} for it.
-To have a server active, you need at least to initialize it (and thus know its address),
-and then run it.
-If you have added your own channels to the channel set of the server,
-their \fun{HandleRead} and \fun{HandleWrite} functions will be called normally by \fun{Run}.
-?*/
-MPX_RES
-UchServer :: Run ()
-{
- if (! Mpx)
- if (! Setup ())
- Error (ErrFatal, "UchServer::Run", "could not setup");
- if (Mpx)
- return Mpx->Run ();
- else
- return isMpxError;
-}
/*?
Send a message to all clients currently connected to this server.
-If \var{flush} is TRUE, the output buffer of each client is flushed.
+If \var{flush} is true, the output buffer of each client is flushed.
?*/
void
UchServer :: Broadcast (UchMessage& msg, bool flush)
@@ -271,7 +207,7 @@ UchServer :: Broadcast (UchMessage& msg, bool flush)
/*?
Send a message to all clients currently connected to this server, except \var{exclude}.
-If \var{flush} is TRUE, the output buffer of each client is flushed.
+If \var{flush} is true, the output buffer of each client is flushed.
?*/
void
UchServer :: Broadcast (UchMessage& msg, UchClient* excl, bool flush)
@@ -330,16 +266,6 @@ UchServer :: Broadcast (UchMsgBuffer& buf, UchClient* excl, bool flush)
#endif
}
-// clients:
-//
-
-/*?nodoc?*/
-UchClient :: UchClient ()
-: UchMsgStream (),
- MyServer (0)
-{
-}
-
/*?nodoc?*/
UchClient :: UchClient (const UchClient& cl)
: UchMsgStream (cl),
@@ -348,13 +274,14 @@ UchClient :: UchClient (const UchClient& cl)
}
/*?
-Construct a new client connected to the server on channel \var{ch}.
+Construct a new client connected to the server on file descriptor fd.
?*/
-UchClient :: UchClient (UchChannel* ch)
+UchClient :: UchClient (UchServer& s, int fd)
: UchMsgStream (),
- MyServer (0)
+ MyServer (&s)
{
- UchChannel::Open (ch->FilDes ());
+ SetMode (IOReadSelect);
+ UchChannel::Open (fd);
}
/*?nodoc?*/
@@ -393,27 +320,7 @@ UchClient :: Delete ()
}
}
-/*?nodoc?*/
-void
-UchClient :: SetOwner (UchServer* serv)
-{
- if (MyServer)
- serv->Error (ErrFatal, "UchClient::SetOwner", "already owned");
- else
- MyServer = serv;
-}
-
#ifdef DOC
-//fake entries for inline functions
-
-/*?
-Return the channel set used by the server.
-This is useful if you want to add your own channels to the channel set.
-?*/
-UchBaseMultiplexer*
-UchServer :: GetMultiplexer ()
-{
-}
/*?
Return the server corresponding to a given client.