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checkpoint.
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crs
parent
4b28ffc5b2
commit
562e3aebb5
206
notes
206
notes
@ -1,8 +1,3 @@
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CServer
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* must have connection thread in screen info map
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allows disconnect if screen map changes and screen is removed
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* put mutex locks wherever necessary (like accessing m_active)
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server client
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------ ------
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[accept] <-- connect
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@ -16,13 +11,22 @@ query info -->
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use automake
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---
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need config file and parser
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remove hard coded debugging stuff (in server.cpp)
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HTTP stuff
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no way to save config using HTTP
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should have a button or a page to force save of config
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or just save config every time it's changed
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should use authentication (at least basic)
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---
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use hostname instead of "primary", "secondary"
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---
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add aliases in config file
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any alias of a screen name counts as that screen name
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handy for mapping FQDN <-> hostname
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---
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win32:
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need to support window stations
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login screen on NT is a separate window station
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provide taskbar icon
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win32 dll:
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@ -30,7 +34,91 @@ win32 dll:
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don't use standard libraries
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use custom _DllMainCRTStartup(); just call DllMain() from it.
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use /MERGE linker switch to merge sections
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should use mutex on all public functions
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clean up c:\winnt\synergy.sgc
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desktop switcher program failure when running synergy as service
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returns access denied from CreateDesktop()
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don't know why
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log window may prevent changing desktop
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should start console in a thread just for that purpose
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client will need to be able to retry connecting to server
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in case server isn't ready yet, client can camp
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---
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bug with half-duplex keys
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win32 server sent num-lock to grace
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grace converts to half-duplex so only synthesizes key down
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now grace starts server and is locked to screen
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grace should ignore half duplex keys when seeing if locked to screen
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---
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CClient and CServer:
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not checking in stop() that we're actually running
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must mutex m_primary/m_screen
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they could be NULL if in the middle of shutting down
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---
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win32 screen saver
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win95 etc:
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keybd_event can terminate screen saver but not mouse_event
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keybd_event resets screen saver start timer but not mouse_event
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to kill screen saver (if it's known to be running):
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PostMessage (GetActiveWindow(), WM_CLOSE, 0, 0L);
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to find if screen saver is running:
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FindWindow ("WindowsScreenSaverClass", NULL);
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win nt 4:
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mouse_event resets screen saver start timer but not keybd_event
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neither can stop screen saver because it runs in a separate desktop
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to kill screen saver:
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BOOL CALLBACK KillScreenSaverFunc(HWND hwnd, LPARAM lParam)
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{
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if(IsWindowVisible(hwnd))
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PostMessage(hwnd, WM_CLOSE, 0, 0);
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return TRUE;
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}
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HDESK hdesk;
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hdesk = OpenDesktop(TEXT("Screen-saver"),
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0,
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FALSE,
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DESKTOP_READOBJECTS | DESKTOP_WRITEOBJECTS);
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if (hdesk)
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{
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EnumDesktopWindows(hdesk, KillScreenSaverFunc, 0);
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CloseDesktop(hdesk);
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}
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---
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unix:
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restarting fails to connect until a user logs in:
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Xlib: no protocol specified
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this is caused by login manager
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all clients are rejected, except those started by manager itself
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workaround is to have synergy started by login manager
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should then use --no-restart, though that's not necessary
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affects client and server
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cannot switch screens on login screen:
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xdm,kdm grab keyboard for duration of login screen
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synergy cannot switch unless it can grab keyboard
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gdm doesn't appear to grab keyboard or mouse for duration
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affects server, only
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get auto-restart into platform code
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provide a `int(*)(void)' ptr to an auto-restart function
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function just forks(), calls ptr, waits, repeats
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may need something else on win32 or maybe just skip it
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---
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bug in updating screens
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saw a goofy set of screens after update
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i think the config was similar to:
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A B
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C
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D E
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---
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not handling international characters
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@ -49,42 +137,16 @@ not distinguishing between caps lock and shift lock
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either the Lock or the Shift key turns off the mode.
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---
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problems with CLIPBOARD and KDE and NEdit
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KDE mail reader (others?) and NEdit never reply to selection request
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perhaps a general Motif problem?
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currently sending all clipboards to all clients
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some clients may not need all clipboards
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add filtering mechanism
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must find app that correctly sets the CLIPBOARD selection for testing
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synergy must note changes to one or both selections
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seems to be having trouble with noting CLIPBOARD after PRIMARY changes
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investigate klipper
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KDE's clipboard manager?
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it crashed once when server did (see below)
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---
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blown assertion
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between client being added to screen list and sending screen size:
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attempt to switch to that screen blows assert
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x,y isn't inside screen because screen has zero size
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maybe have a "ready" flag for each client
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only count ready clients when finding neighbor
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or don't add client to screen list until fully ready
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---
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got crash when opening netscape window after trying copy in KDE mail
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BadWindow in ChangeWindowAttributes
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also got it when trying to transfer big clipboard from secondary
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or just after transferring and perhaps trying to set locally
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---
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sometimes not sending correct clipboard
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some kind of race condition i think
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can select text then switch and get empty clipboard
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switching back to owner screen then out gets correct clipboard
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dunno if this is still a problem
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---
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win32 not sending correct clipboard
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@ -93,11 +155,17 @@ win32 not sending correct clipboard
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problem persisted; also got 43 bytes for a 2 byte selection
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---
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slow leaving primary screen on X
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possibly due to getting primary clipboards
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possibly something else
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could try asynchronously getting primary clipboard
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race condition on secondary wrt pasting
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need timeout on CXWindowsClipboard::CReply objects
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should flush replies that are too old
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assumption is that requestor is broken
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---
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inconsistencies
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exceptions
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using getWhat() in some places to return a code, elsewhere returns message
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references/pointers
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should use pointers for any in/out parameter
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but using references in some places
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---
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win32 hook DLL sometimes not unloaded when server is killed?
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@ -212,15 +280,6 @@ try to determine keyboard quirks automatically
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in particular, set the half-duplex flags
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maybe KBD extension will help determine this
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---
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blown assert:
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client crashed and primary jumped to primary
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left over queued motion events then processed
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caused call to CServer::onMouseMoveSecondary
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m_protocol is NULL because we're on primary screen
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must flush queued events when jumping to primary
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check for other things to do when jumping to primary
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---
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key events sent to console on win me (95/98?) are very slow
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1/4 to 1/2 second delay before key up is processed
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@ -237,6 +296,14 @@ adjust thread priorities on win32
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a very high priority on client fixes delay when typeing into console
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is it the output console causing the slowness?
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---
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must send up key events when leaving screen for keys still down
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some key combos get eaten and the key ups aren't sent
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e.g. ctrl+alt+del on win2k to grace
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mouse is forced back to to win2k
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ctrl and alt up not sent to grace
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grace thinks ctrl and alt are down 'til user physically press/releases them
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---
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Accessibility Shortcuts
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@ -281,26 +348,21 @@ Q179905
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may prevent system from getting locked up when debugging.
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---
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config file format:
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section screens
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<screen>:
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# args in any order
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# not sure if any args
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end
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section links
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<screen>:
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# args in any order
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[left=<screen>]
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[right=<screen>]
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[up=<screen>]
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[down=<screen>]
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end
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how is CTCPSocket::connect() able to cancel?
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looks like it can't
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make it asynchronous and use poll() to wait for connection
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use testCancel() to make it cancellable
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---
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will have to redo clipboard stuff on win32
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need timeout on CReply objects
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should flush replies that are too old
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assumption is that requestor is broken
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win32 rel notes:
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HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Windows\NoInteractiveServices
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can prevent an interactive service from running interactively.
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how can we tell if we're not running interactively?
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even if not interactive we can use MessageBox() to alert user
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use MB_SERVICE_NOTIFICATION flag
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must use a separate thread in initialization if called from handler
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must close dialog if CTRL_LOGOFF_EVENT is received
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see SetConsoleCtrlHandler() and CLog (which uses it)
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maybe possible to get around NoInteractiveServices
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modify DACLs on windows station/desktops to impersonate logged on user
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see "Interacting with the User by a Win32 Service"
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