From 2f925690ef5713bd556db2c3a7dac046f003f2ae Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sat, 5 Apr 2014 14:02:47 +0200 Subject: make sure that `reset` runs after an exception MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/__main__.py | 193 ++++++++++++++++++++++++++++---------------------------- 1 file changed, 97 insertions(+), 96 deletions(-) (limited to 'src/__main__.py') diff --git a/src/__main__.py b/src/__main__.py index b34992c..b73108b 100755 --- a/src/__main__.py +++ b/src/__main__.py @@ -426,106 +426,107 @@ def continuous_run(): with_fadein = lambda : (fadein_steps > 0) and (fadein_time is not None) and not panicgate with_fadeout = lambda : (fadeout_steps > 0) and (fadeout_time is not None) - ## Run until we get a signal to exit - # When the program start we are fading in, - # than we run in normal periodical state. - # But if we get a SIGUSR2 signal we start - # fading out until we get another at which - # point we start fading in. When we get a - # SIGUSR2 we set `panicgate` to be false. - while running: - if trans_delta == 0: - ## Run periodically - # Apply adjustments - p(now(), None) - # and, assuming that we should not exit, - if running: - # sleep for a time interval selected - # by the configuration script. - sleep(wait_period) - elif trans_delta < 0: - ## Fade in - # If we are using fading, - if with_fadein(): - # and just started - if trans_alpha == 0: - # Apply fully clean adjustments, - p(now(), 1 - trans_alpha) - # and and sleep for a short period. + try: + ## Run until we get a signal to exit + # When the program start we are fading in, + # than we run in normal periodical state. + # But if we get a SIGUSR2 signal we start + # fading out until we get another at which + # point we start fading in. When we get a + # SIGUSR2 we set `panicgate` to be false. + while running: + if trans_delta == 0: + ## Run periodically + # Apply adjustments + p(now(), None) + # and, assuming that we should not exit, + if running: + # sleep for a time interval selected + # by the configuration script. + sleep(wait_period) + elif trans_delta < 0: + ## Fade in + # If we are using fading, + if with_fadein(): + # and just started + if trans_alpha == 0: + # Apply fully clean adjustments, + p(now(), 1 - trans_alpha) + # and and sleep for a short period. + sleep(fadein_time / fadein_steps) + # Then step towards adjusted state + trans_alpha -= 1 / fadein_steps + # If we are not fading, which might actually + # have beend should from `periodically`, which + # is invoked by `p`, + if not with_fadein(): + # The jump to adjusted state and + # stop transitioning + trans_alpha = trans_delta = 0 + # Then apply adjusetents + p(now(), 1 - trans_alpha) + # And if we are using fading at this point, + if with_fadein(): + # wait for a short period. sleep(fadein_time / fadein_steps) - # Then step towards adjusted state - trans_alpha -= 1 / fadein_steps - # If we are not fading, which might actually - # have beend should from `periodically`, which - # is invoked by `p`, - if not with_fadein(): - # The jump to adjusted state and - # stop transitioning - trans_alpha = trans_delta = 0 - # Then apply adjusetents - p(now(), 1 - trans_alpha) - # And if we are using fading at this point, - if with_fadein(): - # wait for a short period. - sleep(fadein_time / fadein_steps) - else: - ## Fade out - if with_fadeout(): - # Step towards clean adjustments if we are using fading - trans_alpha += 1 / fadeout_steps - # If we have clean adjustments (or hyperclean), or - # if we do not using fading - if (trans_alpha >= 1) or not with_fadeout(): - # set the adjustments to clean. - trans_alpha = 1 - # Apply adjustments. If `trans_alpha` is 0, we have `fade = -1` - # which means that we are fading away from adjustements but are - # still at 100 % adjustments, moving towards `fade = 0` we are - # removing the adjustments gradually. - p(now(), -1 + trans_alpha) - # If we have reached a fully clean adjustment state, - if trans_alpha == 1: - try: - # then sleep until we gate a wakeup signal, - # which would be at the next SIGUSR2. - with sleep_condition: - sleep_condition.wait() - except KeyboardInterrupt: - # Emulate `kill -TERM` on Control+c - signal_SIGTERM(0, None) else: - # Otherwise, if are are using fading + ## Fade out if with_fadeout(): - # we sleep for a short period. - sleep(fadeout_time / fadeout_steps) - - ## Fade out - if with_fadeout(): - # If we should fade, fade will we have not got - # two SIGTERM signals or keyboard interrupts - while not panic: - # Step towards clean adjustments - trans_alpha += 1 / fadeout_steps - # If we have clean adjustments (or hyperclean), - if trans_alpha >= 1: - # set the adjustments to clean (in case they where hyperclean) - trans_alpha = 1 - # and signal that want should stop after this stop. - panic = True - # Apply adjustments. If `trans_alpha` is 0, we have `fade = -1` - # which means that we are fading away from adjustements but are - # still at 100 % adjustments, moving towards `fade = 0` we are - # removing the adjustments gradually. - p(now(), -1 + trans_alpha) - # Stop if we should no longer fade, - if not with_fadeout(): - break - # before we sleep. If we did not break - # would would run into errors. - sleep(fadeout_time / fadeout_steps) + # Step towards clean adjustments if we are using fading + trans_alpha += 1 / fadeout_steps + # If we have clean adjustments (or hyperclean), or + # if we do not using fading + if (trans_alpha >= 1) or not with_fadeout(): + # set the adjustments to clean. + trans_alpha = 1 + # Apply adjustments. If `trans_alpha` is 0, we have `fade = -1` + # which means that we are fading away from adjustements but are + # still at 100 % adjustments, moving towards `fade = 0` we are + # removing the adjustments gradually. + p(now(), -1 + trans_alpha) + # If we have reached a fully clean adjustment state, + if trans_alpha == 1: + try: + # then sleep until we gate a wakeup signal, + # which would be at the next SIGUSR2. + with sleep_condition: + sleep_condition.wait() + except KeyboardInterrupt: + # Emulate `kill -TERM` on Control+c + signal_SIGTERM(0, None) + else: + # Otherwise, if are are using fading + if with_fadeout(): + # we sleep for a short period. + sleep(fadeout_time / fadeout_steps) - ## Reset - reset() + ## Fade out + if with_fadeout(): + # If we should fade, fade will we have not got + # two SIGTERM signals or keyboard interrupts + while not panic: + # Step towards clean adjustments + trans_alpha += 1 / fadeout_steps + # If we have clean adjustments (or hyperclean), + if trans_alpha >= 1: + # set the adjustments to clean (in case they where hyperclean) + trans_alpha = 1 + # and signal that want should stop after this stop. + panic = True + # Apply adjustments. If `trans_alpha` is 0, we have `fade = -1` + # which means that we are fading away from adjustements but are + # still at 100 % adjustments, moving towards `fade = 0` we are + # removing the adjustments gradually. + p(now(), -1 + trans_alpha) + # Stop if we should no longer fade, + if not with_fadeout(): + break + # before we sleep. If we did not break + # would would run into errors. + sleep(fadeout_time / fadeout_steps) + finally: + ## Reset + reset() ## Read command line arguments -- cgit v1.2.3-70-g09d2