sitano

#define _MULTI_THREADED

#include <sqlite3.h>
#include <stdio.h>
#include <unistd.h>
#include <pthread.h>
#include <stdlib.h>
#include <cstring>

#define SQLOK(line) do { \

sitano

https://stackoverflow.com/questions/7272558/can-we-define-a-new-data-type-in-a-gdb-session

// sample.c
#include "sample.h"
struct sample foo;

gcc -g -c sample.c

(gdb) add-symbol-file sample.o 0
add symbol table from file "sample.o" at

sitano

#define _MULTI_THREADED

#include <sqlite3.h>
#include <stdio.h>
#include <unistd.h>
#include <pthread.h>
#include <stdlib.h>

int print_row_cb(void *NotUsed, int argc, char **argv, char **azColName) {
  NotUsed = 0;

sitano

#define _MULTI_THREADED

#include <sqlite3.h>
#include <stdio.h>
#include <unistd.h>
#include <pthread.h>

int callback(void *, int, char **, char **);
void check(const char *str, int err);
void *threadfunc(void *parm);

sitano

$stdin.sync = true; 
$stdout.sync = true; 

$a = true

def handle(id, sig)
  puts id.to_s + " got " + sig.to_s + " at " + Process.pid.to_s
  $a = false
end

sitano

$ cat /etc/systemd/logind.conf

#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.
#
# Entries in this file show the compile time defaults.

sitano

#include <stdio.h>
#include <unistd.h>
#include <sys/prctl.h>

int main() {
  printf("origin: pid=%d, ppid=%d, pgid=%d\n", getpid(), getppid(), getpgid(getpid()));

  printf("prctl %d\n", prctl(PR_SET_CHILD_SUBREAPER, 1, 0, 0, 0));

  pid_t pid = fork();

sitano

#define _GNU_SOURCE             /* See feature_test_macros(7) */
#include <sched.h>
#include <sys/syscall.h>      /* Definition of SYS_* constants */
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/wait.h>
#include <time.h>

sitano

docker run --rm --name pg -e POSTGRES_PASSWORD=123 -e POSTGRES_HOST_AUTH_METHOD=md5 postgres:latest
docker run --rm -e DATABASE_URL="postgres://postgres:123@172.17.0.2/postgres" -e POOL_MODE=session -p 5432:5432 --name pgb -it edoburu/pgbouncer /usr/bin/pgbouncer /etc/pgbouncer/pgbouncer.ini -v
psql postgres://postgres:123@pgb/

# by default latest versions of PG use SASL+SCRAM-SHA-256 that is not support by the pgbouncer docker image

sitano

#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>