azat

#!/usr/bin/env python3

# Compare prices for cloud storage providers:
# - S3 - AWS S3 from Amazon
#   https://aws.amazon.com/s3/pricing/
# - GS/GCS - Google Cloud Storage
#   https://cloud.google.com/storage/pricing#north-america
# - R2 - R2 from CloudFrame
#   https://developers.cloudflare.com/r2/platform/pricing/

azat

#include <pthread.h>
#include <dlfcn.h>
#include <stdlib.h>

// force jemalloc
void __attribute__((used)) force_jemalloc()
{
    /// calloc() is used in older glibc in dlsym()
    /// force this symbol from the jemalloc to trigger endless loop
    (void)calloc(0, 0);

azat

#define _GNU_SOURCE
#include <dlfcn.h>
#include <stdio.h>

int main()
{
    void *p = dlsym(RTLD_NEXT, "__pthread_mutex_lock");
    printf("__pthread_mutex_lock: %p (via RTLD_NEXT)\n", p);
    return 0;
}

azat

#include <pthread.h>
int main()
{
    // something broken in ASan in interceptor for __pthread_mutex_lock
    // and only since glibc 2.36, and for pthread_mutex_lock everything is OK
    pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
    return __pthread_mutex_lock(&mutex);
}

azat

diff --git a/kazoo/client.py b/kazoo/client.py
index 27b7c38..0c0ecc0 100644
--- a/kazoo/client.py
+++ b/kazoo/client.py
@@ -400,6 +400,7 @@ class KazooClient(object):
 
     def _reset(self):
         """Resets a variety of client states for a new connection."""
+        self.logger.log(BLATHER, "Reseting the client")
         self._queue = deque()

azat

/// Test for RWF_NOWAIT, does it always non-block?
/// The answer is, it may sometimes, for example when there is some issues with the underlying disk.
/// Or maybe when it accessing page entries, that are blocked for a long time, need to take a look deeper.

#define _GNU_SOURCE /// for preadv2()
#include <sys/uio.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <time.h>
#include <stdio.h>

azat

#include <cstdlib>
#include <memory>

struct NewDeleteOperators
{
  NewDeleteOperators() = default;

  static void* operator new(size_t size)
  {
    return ::malloc(size);

azat

import publicsuffix2
import clickhouse_driver

ch = clickhouse_driver.Client(host='127.1')
pls = publicsuffix2.PublicSuffixList(idna=False)

def check_tld(tld):
    print(tld)
    host = 'foo.' + tld
    ch_tld = ch.execute("SELECT cutToFirstSignificantSubdomainCustom(%(host)s, 'public_suffix_list')", params={

azat

#!/usr/bin/env bash

#
# Reproducer for bash bug that had been fixed in bash 5.1+ [1], report [2]
#
#   [1]: https://git.savannah.gnu.org/cgit/bash.git/commit/?h=bash-5.1&id=8868edaf2250e09c4e9a1c75ffe3274f28f38581
#   [2]: https://lists.gnu.org/archive/html/bug-bash/2019-05/msg00110.html
#

function thread_worker()

azat

#!/usr/bin/env bash

set -x

config_directives=(
    --tcp_port=19000
    --mlock_executable=true
)
benchmark_args=(
    -d 0