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Allow suspend by keystroke (Ctrl-^ Ctrl-Z)

(based on patch by Nickolai Zeldovich)
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1 parent 1c2b48a commit 5eafc209eab50d0387b887fcda933ecf86b3d500 @keithw keithw committed Nov 26, 2012
Showing with 17 additions and 0 deletions.
  1. +17 −0 src/frontend/stmclient.cc
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17 src/frontend/stmclient.cc
@@ -264,6 +264,23 @@ bool STMClient::process_user_input( int fd )
} else {
return false;
}
+ } else if ( the_byte == 0x1a ) { /* Suspend sequence is Ctrl-^ Ctrl-Z */
+ /* Restore terminal and terminal-driver state */
+ swrite( STDOUT_FILENO, Terminal::Emulator::close().c_str() );
+
+ if ( tcsetattr( STDIN_FILENO, TCSANOW, &saved_termios ) < 0 ) {
+ perror( "tcsetattr" );
+ exit( 1 );
+ }
+
+ /* clear screen */
+ printf( "\033[H\033[2J" );
+ printf( "\033[37;44m[mosh is suspended.]\n\033[m" );
+
+ fflush( NULL );
+
+ /* actually suspend */
+ raise( SIGTSTP );
} else if ( the_byte == '^' ) {
/* Emulation sequence to type Ctrl-^ is Ctrl-^ ^ */
network->get_current_state().push_back( Parser::UserByte( 0x1E ) );

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