mutability

package require kafka

proc the_delivery_callback {message} {
	puts stderr "delivery callback: $message"
	set ::die 1
}

proc the_error_callback {message} {
	puts stderr "error callback: $message"
	set ::die 1

mutability

- install the two shellscripts into the appropriate places under /etc/initramfs-tools
- run update-initramfs
- put "overlay=yes" on the kernel command line
- reboot

With the overlay in place, the real root is mounted readonly on /ro.
Only the root fs is changed, other filesystems are mounted normally.

Remove "overlay=yes" (or change it to something other than yes) and reboot to go back to readwrite.
(This probably means that you want the commandline config to live somewhere other than on the root fs, e.g. under /boot)

mutability

#!/usr/bin/env tclsh8.6

package require tls

proc testit {host port} {
    puts "connecting to $host $port"
    set sock [tls::socket -cipher ALL \
               -ssl2 0 \
               -ssl3 0 \
               -tls1 1 \

mutability

#!/usr/bin/env python3

import math, sys
from contextlib import closing

def normal_cdf(x, mu, sigma):
    return 0.5 * (1 + math.erf((x - mu) / (sigma * math.sqrt(2))))

def rng_normal_cdf(x, hi):
    mu = hi / 2.0

mutability

// g++ -Wall -O -o sdlgpu-test $(pkg-config SDL2_gpu --cflags) $(sdl2-config --cflags) sdlgpu-test.cc $(pkg-config SDL2_gpu --libs) $(sdl2-config --libs)

#include <SDL_gpu.h>

int main(int argc, char* argv[])
{
    GPU_SetDebugLevel(GPU_DEBUG_LEVEL_MAX);
    
    GPU_Target* screen = GPU_Init(400, 300, GPU_DEFAULT_INIT_FLAGS);
    if (!screen)

mutability

-----BEGIN CERTIFICATE-----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mutability

diff -ur fx3_sdk_1_3_4_src/sdk/firmware/src/system/cyu3vic.c fx3_sdk_1_3_4_src.patched/sdk/firmware/src/system/cyu3vic.c
--- fx3_sdk_1_3_4_src/sdk/firmware/src/system/cyu3vic.c	2017-11-24 09:45:52.000000000 +0800
+++ fx3_sdk_1_3_4_src.patched/sdk/firmware/src/system/cyu3vic.c	2020-01-09 16:46:45.146468433 +0800
@@ -34,12 +34,18 @@
 #define CY_U3P_WDT1_DISABLE_MASK                (CY_U3P_GCTL_MODE1_MASK)
 #define CY_U3P_WDT1_MODE_INTR_MASK              (1 << CY_U3P_GCTL_MODE1_POS)
 
-/* Assuming timer clock frequency as 32KHz */
-#define CY_U3P_OS_TIMER_TICK_OFFSET     (7)
-#define CY_U3P_OS_TIMER_TICK_COUNT      (32)