#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main ()
{
    pthread_mutex_t * mutex_1 = malloc ( sizeof ( pthread_mutex_t ) );
    pthread_mutex_t * mutex_2 = malloc ( sizeof ( pthread_mutex_t ) );
    pthread_mutex_t * mutex_3 = malloc ( sizeof ( pthread_mutex_t ) );

    if ( mutex_1 == NULL || mutex_2 == NULL || mutex_3 == NULL || pthread_mutex_init ( mutex_1, NULL ) != 0 ) {
        free ( mutex_1 ); free ( mutex_2 ); free ( mutex_3 );
        return 1;
    }

    memmove ( mutex_2, mutex_1, sizeof ( pthread_mutex_t ) );
    if ( pthread_mutex_lock ( mutex_2 ) != 0 ) {
        free ( mutex_1 ); free ( mutex_2 ); free ( mutex_3 );
        return 2;
    }

    memmove ( mutex_3, mutex_2, sizeof ( pthread_mutex_t ) );
    if ( pthread_mutex_unlock ( mutex_3 ) != 0 || pthread_mutex_destroy ( mutex_3 ) != 0 ) {
        free ( mutex_1 ); free ( mutex_2 ); free ( mutex_3 );
        return 3;
    }

    free ( mutex_1 ); free ( mutex_2 ); free ( mutex_3 );
    return 0;
}

gcc -O0 -g -std=gnu99 main.c -o main && ./main ; echo $?
>> 0

clang -O0 -g -std=c99 -fsanitize=thread -fno-omit-frame-pointer main.c -o main && ./main ; echo $?
>>
ThreadSanitizer WARNING: unlock of unlocked mutex 0x7d0c0000ef70
    #0 pthread_mutex_unlock <null>:0 (main+0x00000006321c)
    #1 main /home/puchuu/temp/main.c:24 (main+0x0000000a04f5)

0

                            STATIC LINK EXCEPTION

As a special exception, the Authors give you permission to link this library with
independent modules to produce an executable, regardless of the license terms
of these independent modules, and to copy and distribute the resulting
executable under terms of your choice, provided that you also meet, for each
linked independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from or based on
this library. If you modify this library, you must extend this exception to your
version of the library.

Note: this exception relieves you of any obligations under sections 4 and 5
of this license, and section 6 of the GNU General Public License.

Installed versions : (QEMU_USER_TARGETS="arm -alpha -armeb -cris -i386 -m68k -microblaze -microblazeel -mips -mips64 -mipsel -ppc -ppc64 -ppc64abi32 -s390x -sh4 -sh4eb -sparc -sparc32plus -sparc64 -unicore32 -x86_64")

src_unpack() {
        for target in ${IUSE_USER_TARGETS}; do
                use "qemu_user_targets_${target}" && echo "! ${target}"
        done
}

sudo ebuild qemu-user-9999.ebuild manifest
QEMU_USER_TARGETS="arm mips" sudo -E ebuild qemu-user-9999.ebuild unpack
sudo ebuild qemu-user-9999.ebuild clean
USE="qemu_user_targets_arm qemu_user_targets_mips" sudo -E ebuild qemu-user-9999.ebuild unpack

! arm
! mips

# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

EAPI="5"

DESCRIPTION=""
HOMEPAGE=""

LICENSE=""
SLOT="0"
KEYWORDS=""

RDEPEND=""
DEPEND=""

IUSE="use1 use2"
IUSE_FEATURES="feature1 feature2"

for feature in ${IUSE_FEATURES};
do
        IUSE="${IUSE} program_features_${feature}"
done

src_unpack() {
        for feature in ${IUSE_FEATURES};
        do
                use "program_features_${feature}" && echo "! ${feature}"
        done
}

sudo ebuild program-1.ebuild manifest
USE="program_features_feature1" sudo -E ebuild program-1.ebuild unpack
sudo ebuild program-1.ebuild clean
PROGRAM_FEATURES="feature1" sudo -E ebuild program-1.ebuild unpack

! feature1

crossdev -t armv7a-hardfloat-linux-gnueabi --b 2.23.2 --k 3.10 --l 2.17 --g 4.8.1-r1
sudo armv7a-hardfloat-linux-gnueabi -av bash sys-kernel/linux-headers sys-libs/uclibc sys-devel/gcc
sudo cp /usr/bin/qemu-static-arm /usr/armv7a-hardfloat-linux-gnueabi
chroot /usr/armv7a-hardfloat-linux-gnueabi

USE="-nptl -nls" sudo -E crossdev -t mips-linux-uclibc --b 2.23.2 --g 4.8.1-r1 --k 3.3 --l 0.9.33.2-r6

CFLAGS="-O2 -pipe -mips32r2 -mdsp"

grub2-mkconfig -o /boot/grub2/grub.conf

set root='hd3,msdos1'

set root='hd0,msdos1'

games-util/steam-games-meta USE="-s3tc -steamgames_defenders_quest -steamgames_dwarfs -steamgames_journey_down -steamgames_shatter -steamgames_tf2 -steamgames_trine2 -steamgames_unwritten_tales -testdeps" VIDEO_CARDS="fglrx radeon -intel -nouveau -nvidia"
app-emulation/steam-runtime-bin
games-util/steam-launcher USE="-steamruntime"
games-util/steam-client-meta USE="flash -trayicon" VIDEO_CARDS="-intel"
games-util/steam-meta USE="-steamruntime"

CFLAGS="-O2 -pipe -march=native"
ABI_X86="64 32"

Running Steam on gentoo  64-bit
STEAM_RUNTIME is disabled by the user
Installing breakpad exception handler for appid(steam)/version(1377723241_client)
Installing breakpad exception handler for appid(steam)/version(1377723241_client)
Installing breakpad exception handler for appid(steam)/version(1377723241_client)
unlinked 1 orphaned pipes
removing stale semaphore last operated on by process 12075 with name 0eBlobRegistryMutex_8BC1CDCB2B32F1B67AC1011B2ED94BEE
removing stale semaphore last operated on by process 12075 with name 0eBlobRegistrySignal_8BC1CDCB2B32F1B67AC1011B2ED94BEE
removing stale semaphore last operated on by process 12075 with name 0emSteamEngineInstance
removing stale semaphore last operated on by process 12075 with name 0eSteamEngineLock
Installing breakpad exception handler for appid(steam)/version(1377723241_client)
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 14: reading configurations from ~/.fonts.conf is deprecated.
[0909/170503:ERROR:object_proxy.cc(239)] Failed to call method: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.NetworkManager was not provided by any .service files
[0909/170503:WARNING:proxy_service.cc(958)] PAC support disabled because there is no system implementation
Installing breakpad exception handler for appid(steam)/version(1377723241_client)
Installing breakpad exception handler for appid(steam)/version(1377723241_client)
Installing breakpad exception handler for appid(steam)/version(1377723241_client)

** (steam:13521): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: The name org.freedesktop.NetworkManager was not provided by any .service files

** (steam:13521): WARNING **: _nm_remote_settings_ensure_inited: (NMRemoteSettings) error initializing: The name org.freedesktop.NetworkManager was not provided by any .service files

/home/buildbot/buildslave_steam/steam_rel_client_ubuntu12_linux/build/src/clientdll/../common/pipes.cpp (723) : Assertion Failed: Stalled cross-thread pipe
/home/buildbot/buildslave_steam/steam_rel_client_ubuntu12_linux/build/src/clientdll/../common/pipes.cpp (723) : Fatal assert failed: /home/buildbot/buildslave_steam/steam_rel_client_ubuntu12_linux/build/src/clientdll/../common/pipes.cpp, line 723.  Application exiting.

Assert( Assertion Failed: Stalled cross-thread pipe ):/home/buildbot/buildslave_steam/steam_rel_client_ubuntu12_linux/build/src/clientdll/../common/pipes.cpp:723

Installing breakpad exception handler for appid(steam)/version(1377723241_client)
Uploading dump (out-of-process) [proxy '']
/tmp/dumps/crash_20130909171230_9.dmp
_ExitOnFatalAssert

2.6.17-r2 2.6.17-r1 2.6.17-r0 2.6.11-r3 2.6.11-r2 2.6.8.1-r4 2.6.8.1-r2

dd if=/dev/zero of=/dev/sdc
> dd: writing to ‘/dev/sdc’: Input/output error

sd 11:0:0:0: [sdc] Media Changed
sd 11:0:0:0: [sdc]  
Result: hostbyte=DID_ABORT driverbyte=DRIVER_SENSE
sd 11:0:0:0: [sdc]  
Sense Key : Unit Attention [current] 
Info fld=0x0
sd 11:0:0:0: [sdc]  
Add. Sense: Not ready to ready change, medium may have changed
sd 11:0:0:0: [sdc] CDB: 
Write(10): 2a 00 00 00 93 30 00 00 40 00
end_request: I/O error, dev sdc, sector 37680
quiet_error: 50 callbacks suppressed
Buffer I/O error on device sdc, logical block 4710
lost page write due to I/O error on sdc
Buffer I/O error on device sdc, logical block 4711
lost page write due to I/O error on sdc

char buffer[100];
iov.iov_base = buffer;
iov.iov_len  = sizeof ( buffer );

ssize_t length;
bool done = false;
while ( true ) {
    length = recvmsg ( socket_fd, &messages, 0 );
    if ( length == -1 ) {
        return false;
    } else if ( length == 0 ) {
        break;
    }

    struct nlmsghdr * message;
    for ( message = ( struct nlmsghdr * ) buffer; NLMSG_OK ( message, length ); message = NLMSG_NEXT ( message, length ) ) {
        switch ( message->nlmsg_type ) {
        case NLMSG_DONE:
            printf ( "%s\n", "done" );
            done = true;
            break;
        default:
            printf ( "code %d\n", message->nlmsg_type );
            break;
        }
    }
    if ( done ) {
        break;
    }
}

socket ( AF_NETLINK, SOCK_RAW,   NETLINK_ROUTE )
socket ( AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE )

       ->
       ->
клиент -> облачко <- server
       ->
       ->