wasp: On-device crash reporting
If an application crashes let's report it on the device so it can be distinguished from a hang (if nothing else it should mean we get better bug reports).
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parent
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commit
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9 changed files with 209 additions and 6 deletions
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@ -1 +1 @@
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Subproject commit 2e5cb3eb32bcd4d72a328697db5442a9950969c0
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Subproject commit 7f8eda310df53a086ea55281bc9361ef386ec01a
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BIN
res/bomb.png
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BIN
res/bomb.png
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After Width: | Height: | Size: 305 B |
119
wasp/apps/pager.py
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119
wasp/apps/pager.py
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@ -0,0 +1,119 @@
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# SPDX-License-Identifier: LGPL-3.0-or-later
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# Copyright (C) 2020 Daniel Thompson
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import wasp
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import icons
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import io
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import sys
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class PagerApp():
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"""Show long text in a pager.
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This is used to present text based information to the user. It is primarily
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intended for notifications but is also used to provide debugging
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information when applications crash.
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"""
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NAME = 'Pager'
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ICON = icons.app
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def __init__(self, msg):
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self._msg = msg
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self._scroll = wasp.widgets.ScrollIndicator()
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def foreground(self):
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"""Activate the application."""
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self._page = 0
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self._chunks = wasp.watch.drawable.wrap(self._msg, 240)
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self._numpages = (len(self._chunks) - 2) // 9
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wasp.system.request_event(wasp.EventMask.SWIPE_UPDOWN)
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self._draw()
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def background(self):
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del self._chunks
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del self._numpages
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def swipe(self, event):
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mute = wasp.watch.display.mute
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if event[0] == wasp.EventType.UP:
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if self._page >= self._numpages:
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wasp.system.navigate(wasp.EventType.BACK)
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return
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self._page += 1
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else:
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if self._page <= 0:
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wasp.watch.vibrator.pulse()
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return
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self._page -= 1
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mute(True)
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self._draw()
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mute(False)
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def _draw(self):
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"""Draw the display from scratch."""
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draw = wasp.watch.drawable
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draw.fill()
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page = self._page
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i = page * 9
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j = i + 11
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chunks = self._chunks[i:j]
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for i in range(len(chunks)-1):
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sub = self._msg[chunks[i]:chunks[i+1]].rstrip()
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draw.string(sub, 0, 24*i)
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scroll = self._scroll
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scroll.up = page > 0
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scroll.down = page < self._numpages
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scroll.draw()
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class CrashApp():
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"""Crash handler application.
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This application is launched automatically whenever another
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application crashes. Our main job it to indicate as loudly as
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possible that the system is no longer running correctly. This
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app deliberately enables inverted video mode in order to deliver
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that message as strongly as possible.
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"""
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def __init__(self, exc):
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"""Capture the exception information.
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This app does not actually display the exception information
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but we need to capture the exception info before we leave
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the except block.
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"""
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msg = io.StringIO()
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sys.print_exception(exc, msg)
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self._msg = msg.getvalue()
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msg.close()
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def foreground(self):
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"""Indicate the system has crashed by drawing a couple of bomb icons.
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If you owned an Atari ST back in the mid-eighties then I hope you
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recognise this as a tribute a long forgotten home computer!
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"""
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wasp.watch.display.invert(False)
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draw = wasp.watch.drawable
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draw.blit(icons.bomb, 0, 104)
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draw.blit(icons.bomb, 32, 104)
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wasp.system.request_event(wasp.EventMask.SWIPE_UPDOWN |
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wasp.EventMask.SWIPE_LEFTRIGHT)
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def background(self):
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"""Restore a normal display mode.
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Conceal the display before the transition otherwise the inverted
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bombs get noticed by the user.
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"""
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wasp.watch.display.mute(True)
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wasp.watch.display.invert(True)
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def swipe(self, event):
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"""Show the exception message in a pager.
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"""
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wasp.system.switch(PagerApp(self._msg))
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@ -12,7 +12,7 @@ class TestApp():
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ICON = icons.app
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def __init__(self):
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self.tests = ('Touch', 'String', 'Button', 'Crash', 'RLE')
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self.tests = ('Touch', 'String', 'Wrap', 'Button', 'Crash', 'RLE')
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self.test = self.tests[0]
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self.scroll = wasp.widgets.ScrollIndicator()
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@ -56,6 +56,8 @@ class TestApp():
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event[1], event[2]), 0, 108, width=240)
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elif self.test == 'String':
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self.benchmark_string()
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elif self.test == 'Wrap':
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self.benchmark_wrap()
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elif self.test == 'RLE':
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self.benchmark_rle()
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@ -88,6 +90,24 @@ class TestApp():
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del t
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draw.string('{}s'.format(elapsed / 1000000), 12, 24+192)
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def benchmark_wrap(self):
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draw = wasp.watch.drawable
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draw.fill(0, 0, 30, 240, 240-30)
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self.scroll.draw()
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t = machine.Timer(id=1, period=8000000)
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t.start()
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draw = wasp.watch.drawable
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s = 'This\nis a very long string that will need to be wrappedinmultipledifferentways!'
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chunks = draw.wrap(s, 240)
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for i in range(len(chunks)-1):
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sub = s[chunks[i]:chunks[i+1]].rstrip()
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draw.string(sub, 0, 48+24*i)
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elapsed = t.time()
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t.stop()
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del t
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draw.string('{}s'.format(elapsed / 1000000), 12, 24+192)
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def draw(self):
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"""Redraw the display from scratch."""
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wasp.watch.display.mute(True)
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@ -7,6 +7,7 @@ freeze('../..',
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'apps/clock.py',
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'apps/flashlight.py',
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'apps/launcher.py',
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'apps/pager.py',
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'apps/settings.py',
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'apps/testapp.py',
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'boot.py',
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@ -6,6 +6,12 @@ def sleep_ms(ms):
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time.sleep(ms / 1000)
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time.sleep_ms = sleep_ms
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import sys, traceback
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def print_exception(exc, file=sys.stdout):
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exc_type, exc_value, exc_traceback = sys.exc_info()
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traceback.print_exception(exc_type, exc_value, exc_traceback, file=file)
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sys.print_exception = print_exception
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import draw565
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from machine import I2C
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@ -235,3 +235,32 @@ class Draw565(object):
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if width:
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display.fill(0, x, y, rightpad, h)
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def wrap(self, s, width):
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font = self._font
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max = len(s)
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chunks = [ 0, ]
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end = 0
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while end < max:
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start = end
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l = 0
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for i in range(start, max+1):
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if i >= len(s):
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break
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ch = s[i]
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if ch == '\n':
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end = i+1
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break
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if ch == ' ':
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end = i+1
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(_, h, w) = font.get_ch(ch)
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l += w + 1
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if l > width:
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break
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if end <= start:
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end = i
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chunks.append(end)
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return chunks
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@ -4,6 +4,19 @@
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# 1-bit RLE, generated from res/battery.png, 189 bytes
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battery = (36, 48, b'\x97\x0e\x14\x12\x11\x14\x10\x14\x0c\x08\x0c\x08\x08\x08\x0c\x08\x08\x08\x0c\x08\x08\x08\x0c\x08\x08\x04\x14\x04\x08\x04\x14\x04\x08\x04\x0c\x04\x04\x04\x08\x04\x0b\x05\x04\x04\x08\x04\n\x06\x04\x04\x08\x04\t\x07\x04\x04\x08\x04\x08\x07\x05\x04\x08\x04\x07\x07\x06\x04\x08\x04\x06\x07\x07\x04\x08\x04\x05\x07\x08\x04\x08\x04\x04\x0e\x02\x04\x08\x04\x03\x0f\x02\x04\x08\x04\x02\x10\x02\x04\x08\x04\x02\x10\x02\x04\x08\x04\x02\x0f\x03\x04\x08\x04\x02\x0e\x04\x04\x08\x04\x08\x07\x05\x04\x08\x04\x07\x07\x06\x04\x08\x04\x06\x07\x07\x04\x08\x04\x05\x07\x08\x04\x08\x04\x04\x07\t\x04\x08\x04\x04\x06\n\x04\x08\x04\x04\x05\x0b\x04\x08\x04\x04\x04\x0c\x04\x08\x04\x14\x04\x08\x04\x14\x04\x08\x04\x14\x04\x08\x04\x14\x04\x08\x1c\x08\x1c\x08\x1c\x08\x1c\x98')
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# 2-bit RLE, generated from res/bomb.png, 100 bytes
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bomb = (
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b'\x02'
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b' '
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b'\x15\xc2\x06\xc22\xc3\x03\xc2\x02\xc2\x13\xc1\x03\xc1\x1a\xc1'
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b'\x05\xc5\x15\xc1\x1c\xc7\x04\xc2\x02\xc2\x0f\xc7\x19\xc7\x02\xc2'
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b'\x06\xc2\r\xc7\x17\xcb\x13\xcf\x10\xc6\x02\xc9\x0e\xd3\r\xd3'
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b'\x0c\xc5\x02\xce\x0b\xc4\x02\xcf\x0b\xd5\n\xc4\x01\xd2\t\xc3'
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b'\x02\xd2\t\xc3\x01\xd3\t\xc3\x02\xd2\t\xc4\x01\xd2\n\xd5'
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b'\x0b\xd5\x0b\xd5\x0c\xd3\r\xd3\x0e\xd1\x10\xcf\x13\xcb\x18\xc5'
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b'\x0e'
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)
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# 2-bit RLE, generated from res/app_icon.png, 460 bytes
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app = (
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b'\x02'
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b'C,t-r/p2l?X\x80m\xa6;\xa4'
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b'<\xa4<\xa4\x1e'
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)
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# 2-bit RLE, generated from res/torch_icon.png, 247 bytes
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torch = (
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b'\x02'
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# 1-bit RLE, generated from res/down_arrow.png, 17 bytes
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down_arrow = (16, 9, b'\x00 \x01\x0e\x03\x0c\x05\n\x07\x08\t\x06\x0b\x04\r\x02\x07')
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19
wasp/wasp.py
19
wasp/wasp.py
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from apps.clock import ClockApp
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from apps.flashlight import FlashlightApp
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from apps.launcher import LauncherApp
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from apps.pager import CrashApp
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from apps.settings import SettingsApp
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from apps.testapp import TestApp
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TOUCH = 5
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HOME = 256
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BACK = 257
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class EventMask():
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"""Enumerated event masks.
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self.switch(app_list[0])
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else:
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watch.vibrator.pulse()
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elif direction == EventType.HOME:
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elif direction == EventType.HOME or direction == EventType.BACK:
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if self.app != app_list[0]:
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self.switch(app_list[0])
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else:
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if 1 == self._button.get_event() or self.charging != charging:
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self.wake()
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def run(self):
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def run(self, no_except=True):
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"""Run the system manager synchronously.
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This allows all watch management activities to handle in the
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# been set running again.
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print('Watch is running, use Ctrl-C to stop')
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if not no_except:
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# This is a simplified (uncommented) version of the loop
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# below
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while True:
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self._tick()
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machine.deepsleep()
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while True:
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try:
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self._tick()
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except KeyboardInterrupt:
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raise
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except Exception as e:
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self.switch(CrashApp(e))
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# Currently there is no code to control how fast the system
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# ticks. In other words this code will break if we improve the
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# power management... we are currently relying on no being able
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