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Fix bugs in resize handling.

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* A resize action could be applied to the framebuffer but discarded
  before being applied to termios, causing them to be out of sync.

* Only every second action was skipped, instead of skipping
  consecutive resize actions, as intended.

Found by inspection, not seen in actual usage or by the window-resize
test.
This commit is contained in:
John Hood
2015-12-10 22:23:29 -05:00
parent 255dc39c9f
commit d4832ca63a
1 changed files with 4 additions and 4 deletions
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src/frontend/mosh-server.cc
+4 -4
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@@ -663,12 +663,11 @@ static void serve( int host_fd, Terminal::Complete &terminal, ServerConnection &
/* apply userstream to terminal */
for ( size_t i = 0; i < us.size(); i++ ) {
const Parser::Action *action = us.get_action( i );
terminal_to_host += terminal.act( action );
if ( typeid( *action ) == typeid( Parser::Resize ) ) {
/* elide consecutive Resize actions */
if ( i < us.size() - 1 &&
/* apply only the last consecutive Resize action */
while ( i < us.size() - 1 &&
typeid( us.get_action( i + 1 ) ) == typeid( Parser::Resize ) ) {
continue;
i++;
}
/* tell child process of resize */
const Parser::Resize *res = static_cast<const Parser::Resize *>( action );
@@ -684,6 +683,7 @@ static void serve( int host_fd, Terminal::Complete &terminal, ServerConnection &
return;
}
}
terminal_to_host += terminal.act( action );
}
if ( !us.empty() ) {