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6246ff3f0a
putty-source/windows
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Simon Tatham 6246ff3f0a New Seat callback, seat_sent(). 
This is used to notify the Seat that some data has been cleared from
the backend's outgoing data buffer. In other words, it notifies the
Seat that it might be worth calling backend_sendbuffer() again.

We've never needed this before, because until now, Seats have always
been the 'main program' part of the application, meaning they were
also in control of the event loop. So they've been able to call
backend_sendbuffer() proactively, every time they go round the event
loop, instead of having to wait for a callback.

But now, the SSH proxy is the first example of a Seat without
privileged access to the event loop, so it has no way to find out that
the backend's sendbuffer has got smaller. And without that, it can't
pass that notification on to plug_sent, to unblock in turn whatever
the proxied connection might have been waiting to send.

In fact, before this commit, sshproxy.c never called plug_sent at all.
As a result, large data uploads over an SSH jump host would hang
forever as soon as the outgoing buffer filled up for the first time:
the main backend (to which sshproxy.c was acting as a Socket) would
carefully stop filling up the buffer, and then never receive the call
to plug_sent that would cause it to start again.

The new callback is ignored everywhere except in sshproxy.c. It might
be a good idea to remove backend_sendbuffer() entirely and convert all
previous uses of it into non-empty implementations of this callback,
so that we've only got one system; but for the moment, I haven't done
that.
2021-06-27 13:52:48 +01:00
..
utils Factor out Windows utility function get_system_dir(). 2021-05-08 17:18:17 +01:00
agent-client.c Close agent named-pipe handles when queries complete. 2021-05-13 18:22:05 +01:00
be_conpty.c New application: a Windows version of 'pterm'! 2021-05-08 17:51:27 +01:00
cliloop.c Reorganise Windows HANDLE management. 2021-05-24 15:27:38 +01:00
CMakeLists.txt Reorganise Windows HANDLE management. 2021-05-24 15:27:38 +01:00
config.c Initial support for in-process proxy SSH connections. 2021-05-22 14:13:52 +01:00
conpty.c Reorganise Windows HANDLE management. 2021-05-24 15:27:38 +01:00
console.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
controls.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
cryptoapi.h Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
dialog.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
gss.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
handle-io.c Reorganise Windows HANDLE management. 2021-05-24 15:27:38 +01:00
handle-socket.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
handle-wait.c Fix an unused variable. 2021-05-27 09:48:32 +01:00
help.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
help.h New option to reject 'trivial' success of userauth. 2021-06-19 21:34:56 +01:00
help.rc2 Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
installer.wxs Configurable CHM path in installer source. 2021-05-03 17:01:55 +01:00
jump-list.c Move some parts of window.c into putty.c. 2021-05-08 17:20:50 +01:00
local-proxy.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
make_install_images.sh Remove white dialog background in MSI user interface. 2020-06-21 16:39:47 +01:00
msifixup.py Remove white dialog background in MSI user interface. 2020-06-21 16:39:47 +01:00
named-pipe-client.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
named-pipe-server.c Reorganise Windows HANDLE management. 2021-05-24 15:27:38 +01:00
network.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
no-jump-list.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
nohelp.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
noise.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
pageant-rc.h winpgnt: say 'click to focus' in async passphrase prompt. 2021-04-22 20:00:46 +01:00
pageant.c Reorganise Windows HANDLE management. 2021-05-24 15:27:38 +01:00
pageant.ico Tweak the icon script, and the generated icons, to more closely 2007-01-07 10:17:12 +00:00
pageant.mft Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
pageant.rc Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
pageants.ico Tweak the icon script, and the generated icons, to more closely 2007-01-07 10:17:12 +00:00
platform.h Reorganise Windows HANDLE management. 2021-05-24 15:27:38 +01:00
plink.c New Seat callback, seat_sent(). 2021-06-27 13:52:48 +01:00
plink.rc `win-versioninfo': all builds of all Windows binaries now contain 2005-10-04 14:13:28 +00:00
printing.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
pscp.ico Tweak the icon script, and the generated icons, to more closely 2007-01-07 10:17:12 +00:00
pscp.rc `win-versioninfo': all builds of all Windows binaries now contain 2005-10-04 14:13:28 +00:00
psftp.rc `win-versioninfo': all builds of all Windows binaries now contain 2005-10-04 14:13:28 +00:00
psocks.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
pterm.c New application: a Windows version of 'pterm'! 2021-05-08 17:51:27 +01:00
pterm.ico Make Windows versions of the pterm icons. 2021-05-08 17:33:25 +01:00
pterm.rc New application: a Windows version of 'pterm'! 2021-05-08 17:51:27 +01:00
ptermcfg.ico Make Windows versions of the pterm icons. 2021-05-08 17:33:25 +01:00
putty-common.rc2 Move icon declarations out of putty-common.rc2. 2021-05-08 17:33:25 +01:00
putty-rc.h Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
putty.c Move some parts of window.c into putty.c. 2021-05-08 17:20:50 +01:00
putty.ico Tweak the icon script, and the generated icons, to more closely 2007-01-07 10:17:12 +00:00
putty.mft Windows 10: add per monitor DPI awareness support. 2021-04-02 19:04:19 +01:00
putty.rc Move icon declarations out of putty-common.rc2. 2021-05-08 17:33:25 +01:00
puttycfg.ico Tweak the icon script, and the generated icons, to more closely 2007-01-07 10:17:12 +00:00
puttygen-rc.h PuTTYgen: option to control Argon2 flavour. 2021-02-23 18:26:50 +00:00
puttygen.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
puttygen.ico Tweak the icon script, and the generated icons, to more closely 2007-01-07 10:17:12 +00:00
puttygen.mft Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
puttygen.rc Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
puttyins.ico `installer.ico' doesn't fit into 8.3, so gets truncated to INSTALLE.ICO in 2007-02-06 22:39:15 +00:00
puttytel.mft Windows 10: add per monitor DPI awareness support. 2021-04-02 19:04:19 +01:00
puttytel.rc Move icon declarations out of putty-common.rc2. 2021-05-08 17:33:25 +01:00
rcstuff.h Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
README-msi.txt Remove note about .CHM on network drives. 2019-03-18 21:53:45 +00:00
security-api.h Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
select-cli.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
select-gui.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
serial.c New Seat callback, seat_sent(). 2021-06-27 13:52:48 +01:00
sftp.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
sharing.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
sizetip.c Formatting change to braces around one case of a switch. 2020-02-16 11:26:21 +00:00
storage.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
unicode.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
version.rc2 FIXME about Windows resource CHMfulness hint. 2019-03-18 22:02:13 +00:00
website.url Switch chiark URLs to https. 2017-05-07 16:29:01 +01:00
win-gui-seat.h Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
window.c New Seat callback, seat_sent(). 2021-06-27 13:52:48 +01:00
x11.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00