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For me the out put is when cygserver is up.
Semaphore Test
Semaphore created successfully 196608
Value before errno = 0
Cannot set semaphore value.errno = 22
When cygserver is down the output is
Semaphore Test
Unable to obtain semaphore 88
After bringing up cygserver the command 'cygcheck -c' shows the below output.
Cygwin Package Information
Package Version Status
_autorebase 001003-1 OK
adwaita-icon-theme 3.18.0-1 OK
alternatives 1.3.30c-10 OK
autoconf 13-1 OK
autoconf2.1 2.13-12 OK
autoconf2.5 2.69-3 OK
automake 9-1 OK
automake1.10 1.10.3-2 OK
automake1.11 1.11.6-2 OK
automake1.12 1.12.6-2 OK
automake1.13 1.13.4-1 OK
automake1.14 1.14.1-2 OK
automake1.15 1.15-1 OK
automake1.4 1.4p6-11 OK
automake1.5 1.5-11 OK
automake1.6 1.6.3-12 OK
automake1.7 1.7.9-11 OK
automake1.8 1.8.5-11 OK
automake1.9 1.9.6-11 OK
base-cygwin 3.8-1 OK
base-files 4.2-4 OK
bash 4.3.42-4 OK
bashdb 3.1_0.09-1 OK
binutils 2.25-4 OK
bison 3.0.4-1 OK
byacc 20150711-1 OK
bzip2 1.0.6-2 OK
ca-certificates 2.6-1 OK
cccc 3.1.4-1 OK
clang 3.7.1-1 OK
cmake 3.3.2-1 OK
cmake-doc 3.3.2-1 OK
cmake-gui 3.3.2-1 OK
coreutils 8.25-1 OK
crypt 1.2-1 OK
csih 0.9.9-1 OK
cvs 1.11.23-2 OK
cvsutils 0.2.6-1 OK
cygport 0.20.2-1 OK
cygrunsrv 1.62-1 OK
cygutils 1.4.15-2 OK
cygwin 2.4.1-1 OK
cygwin-debuginfo 2.4.1-1 OK
cygwin-devel 2.4.1-1 OK
dash 0.5.8-3 OK
desktop-file-utils 0.22-1 OK
diffstat 1.60-1 OK
diffutils 3.3-3 OK
dos2unix 7.3.3-1 OK
dri-drivers 11.0.9-2 OK
editrights 1.03-1 OK
file 5.25-1 OK
findutils 4.5.12-1 OK
flac-devel 1.3.1-1 OK
flex 2.5.39-1 OK
flexdll 0.34-1 OK
gamin 0.1.10-15 OK
gawk 4.1.3-1 OK
gcc-core 5.3.0-3 OK
gcc-g++ 5.3.0-3 OK
gcc-objc 5.3.0-3 OK
gcc-objc++ 5.3.0-3 OK
getent 2.18.90-4 OK
grep 2.21-2 OK
groff 1.22.3-1 OK
gsettings-desktop-schemas 3.18.1-1 OK
gtk-update-icon-cache 3.18.7-1 OK
gzip 1.6-1 OK
hicolor-icon-theme 0.12-1 OK
hostname 3.13-1 OK
info 6.1-2 OK
ipc-utils 1.0-1 OK
kbproto 1.0.7-1 OK
less 481-1 OK
lftp 4.6.5-1 OK
libarchive13 3.1.2-3 OK
libargp 20110921-2 OK
libatk1.0_0 2.18.0-1 OK
libatomic1 5.3.0-3 OK
libattr-devel 2.4.46-1 OK
libattr1 2.4.46-1 OK
libblkid1 2.25.2-2 OK
libboost-devel 1.58.0-1 OK
libboost_atomic1.58 1.58.0-1 OK
libboost_chrono1.58 1.58.0-1 OK
libboost_container1.58 1.58.0-1 OK
libboost_context1.58 1.58.0-1 OK
libboost_coroutine1.58 1.58.0-1 OK
libboost_date_time1.58 1.58.0-1 OK
libboost_filesystem1.58 1.58.0-1 OK
libboost_graph1.58 1.58.0-1 OK
libboost_iostreams1.58 1.58.0-1 OK
libboost_locale1.58 1.58.0-1 OK
libboost_log1.58 1.58.0-1 OK
libboost_math1.58 1.58.0-1 OK
libboost_program_options1.58 1.58.0-1 OK
libboost_random1.58 1.58.0-1 OK
libboost_regex1.58 1.58.0-1 OK
libboost_serialization1.58 1.58.0-1 OK
libboost_signals1.58 1.58.0-1 OK
libboost_system1.58 1.58.0-1 OK
libboost_test1.58 1.58.0-1 OK
libboost_thread1.58 1.58.0-1 OK
libboost_timer1.58 1.58.0-1 OK
libboost_wave1.58 1.58.0-1 OK
libbz2-devel 1.0.6-2 OK
libbz2_1 1.0.6-2 OK
libcairo2 1.14.4-1 OK
libcharset1 1.14-3 OK
libclang3.7 3.7.1-1 OK
libcloog-isl4 0.18.0-2 OK
libcom_err2 1.42.12-2 OK
libcurl4 7.47.1-1 OK
libdatrie1 0.2.8-1 OK
libdb4.8 4.8.30-1 OK
libdbus1_3 1.8.16-1 OK
libedit0 20130712-1 OK
libEGL1 11.0.9-2 OK
libexpat1 2.1.0-3 OK
libfam0 0.1.10-15 OK
libffi6 3.2.1-1 OK
libFLAC++6 1.3.1-1 OK
libFLAC8 1.3.1-1 OK
libfontconfig1 2.11.1-3 OK
libfreetype-devel 2.5.5-2 OK
libfreetype6 2.5.5-2 OK
libgcc1 5.3.0-3 OK
libgcrypt20 1.6.4-1 OK
libgdbm4 1.8.3-20 OK
libgdk_pixbuf2.0_0 2.32.2-1 OK
libgif-devel 4.1.6-10 OK
libgif4 4.1.6-10 OK
libGL1 11.0.9-2 OK
libglapi0 11.0.9-2 OK
libglib2.0_0 2.46.2-2 OK
libgmp10 6.1.0-3p1 OK
libgnutls28 3.3.17-1 OK
libgomp1 5.3.0-3 OK
libgpg-error0 1.19-1 OK
libgraphite2_3 1.3.6-1 OK
libgssapi_krb5_2 1.13.2-4 OK
libgtk2.0_0 2.24.29-1 OK
libguile17 1.8.8-1 OK
libharfbuzz0 1.0.6-1 OK
libhogweed2 2.7-2 OK
libICE-devel 1.0.9-1 OK
libICE6 1.0.9-1 OK
libiconv 1.14-3 OK
libiconv-devel 1.14-3 OK
libiconv2 1.14-3 OK
libicu-devel 56.1-1 OK
libicu56 56.1-1 OK
libidn11 1.29-1 OK
libintl-devel 0.19.5.1-2 OK
libintl8 0.19.5.1-2 OK
libisl10 0.11.1-2 OK
libisl13 0.14.1-1 OK
libjasper1 1.900.1-15 OK
libjbig2 2.0-14 OK
libjpeg-devel 1.4.2-1 OK
libjpeg8 1.4.2-1 OK
libk5crypto3 1.13.2-4 OK
libkrb5_3 1.13.2-4 OK
libkrb5support0 1.13.2-4 OK
liblcms-devel 1.19-5 OK
liblcms1 1.19-5 OK
libllvm3.7 3.7.1-1 OK
libltdl7 2.4.6-3 OK
liblzma5 5.2.2-1 OK
liblzo2_2 2.08-1 OK
libming-devel 0.4.7-1 OK
libming1 0.4.7-1 OK
libmng-devel 1.0.10-4 OK
libmng1 1.0.10-4 OK
libmpc3 1.0.3-1 OK
libmpfr4 3.1.4-1 OK
libncurses-devel 6.0-4.20160305 OK
libncurses10 5.9-20150530-1 OK
libncursesw10 6.0-4.20160305 OK
libnettle4 2.7-2 OK
libnghttp2_14 1.7.1-1 OK
libobjc4 5.3.0-3 OK
libogg-devel 1.3.1-1 OK
libogg0 1.3.1-1 OK
libopenldap2_4_2 2.4.42-1 OK
libopenssl100 1.0.2g-3 OK
libp11-kit0 0.22.1-1 OK
libpango1.0_0 1.38.1-1 OK
libpcre1 8.38-2 OK
libpcre16_0 8.38-2 OK
libpipeline1 1.4.0-1 OK
libpixman1_0 0.32.8-1 OK
libpng-devel 1.6.20-1 OK
libpng16 1.6.20-1 OK
libpng16-devel 1.6.20-1 OK
libproxy1 0.4.11-5 OK
libpsl5 0.12.0-1 OK
libQt5Core5 5.5.1-1 OK
libQt5Gui5 5.5.1-1 OK
libquadmath0 5.3.0-3 OK
libreadline7 6.3.8-1 OK
libsasl2_3 2.1.26-9 OK
libsigsegv2 2.10-2 OK
libSM-devel 1.2.2-1 OK
libSM6 1.2.2-1 OK
libsmartcols1 2.25.2-2 OK
libsqlite3_0 3.11.0-2 OK
libssh2_1 1.7.0-1 OK
libssp0 5.3.0-3 OK
libstdc++6 5.3.0-3 OK
libtasn1_6 4.7-1 OK
libthai0 0.1.21-1 OK
libtiff6 4.0.6-1 OK
libtool 2.4.6-3 OK
libunistring2 0.9.6-1 OK
libuuid-devel 2.25.2-2 OK
libuuid1 2.25.2-2 OK
libvtv0 5.3.0-3 OK
libX11-devel 1.6.3-1 OK
libX11-xcb1 1.6.3-1 OK
libX11_6 1.6.3-1 OK
libXau-devel 1.0.8-1 OK
libXau6 1.0.8-1 OK
libxcb-devel 1.11.1-1 OK
libxcb-glx0 1.11.1-1 OK
libxcb-icccm4 0.4.1-1 OK
libxcb-image0 0.3.9-1 OK
libxcb-keysyms1 0.3.9-1 OK
libxcb-randr0 1.11.1-1 OK
libxcb-render-util0 0.3.9-1 OK
libxcb-render0 1.11.1-1 OK
libxcb-shape0 1.11.1-1 OK
libxcb-shm0 1.11.1-1 OK
libxcb-sync1 1.11.1-1 OK
libxcb-util1 0.3.9-1 OK
libxcb-xfixes0 1.11.1-1 OK
libxcb-xkb1 1.11.1-1 OK
libxcb1 1.11.1-1 OK
libXcomposite1 0.4.3-1 OK
libXcursor1 1.1.14-1 OK
libXdamage1 1.1.4-1 OK
libXdmcp-devel 1.1.2-1 OK
libXdmcp6 1.1.2-1 OK
libXext6 1.3.3-1 OK
libXfixes3 5.0.1-1 OK
libXft2 2.3.2-1 OK
libXi6 1.7.6-1 OK
libXinerama1 1.1.3-1 OK
libxkbcommon0 0.4.3-1 OK
libxml2 2.9.3-1 OK
libXrandr2 1.5.0-1 OK
libXrender1 0.9.9-1 OK
libxslt 1.1.28-2 OK
lndir 1.0.3-1 OK
login 1.11-1 OK
lynx 2.8.7-1 OK
m4 1.4.17-2 OK
make 4.1-1 OK
man-db 2.7.4-1 OK
mingw-binutils 2.23.1-1 OK
mingw-gcc-core 4.7.3-1 OK
mingw-libgcrypt 1.4.6-1 OK
mingw-libgcrypt-devel 1.4.6-1 OK
mingw-libgcrypt11 1.4.6-1 OK
mingw-libgpg-error-devel 1.10-1 OK
mingw-libgpg-error0 1.10-1 OK
mingw-pthreads 20110507-2 OK
mingw-runtime 4.0-1 OK
mingw-w32api 4.0-1 OK
mingw64-i686-binutils 2.25.0.1.23f238d-1 OK
mingw64-i686-dbus 1.8.20-1 OK
mingw64-i686-dbus-glib 0.102-1 OK
mingw64-i686-expat 2.1.0-2 OK
mingw64-i686-gcc-core 4.9.2-2 OK
mingw64-i686-gcc-g++ 4.9.2-2 OK
mingw64-i686-gconf2 3.2.6-1 OK
mingw64-i686-gconfmm2.6 2.28.2-2 OK
mingw64-i686-gettext 0.19.5.1-1 OK
mingw64-i686-glib2.0 2.46.2-1 OK
mingw64-i686-glibmm2.4 2.46.2-1 OK
mingw64-i686-headers 4.0.5-1 OK
mingw64-i686-libffi 3.2.1-1 OK
mingw64-i686-libgnurx 2.5-3 OK
mingw64-i686-libsigc++2.0 2.6.2-1 OK
mingw64-i686-libxml2 2.9.3-1 OK
mingw64-i686-ncurses 6.0-4.20160305 OK
mingw64-i686-pkg-config 0.28-1 OK
mingw64-i686-runtime 4.0.5-1 OK
mingw64-i686-win-iconv 0.0.6-2 OK
mingw64-i686-windows-default-manifest 6.4-1 OK
mingw64-i686-winpthreads 4.0.5-1 OK
mingw64-i686-xz 5.2.1-1 OK
mingw64-i686-zlib 1.2.8-4 OK
mintty 2.2.3-0 OK
ncurses 6.0-4.20160305 OK
openssh 7.2p1-1 OK
openssl 1.0.2g-3 OK
p11-kit 0.22.1-1 OK
p11-kit-trust 0.22.1-1 OK
patch 2.7.4-1 OK
perl 5.22.1-1 OK
perl-Carp 1.38-1 OK
perl-Encode-Locale 1.05-1 OK
perl-File-Listing 6.04-5 OK
perl-HTML-Parser 3.72-1 OK
perl-HTML-Tagset 3.20-5 OK
perl-HTTP-Cookies 6.01-5 OK
perl-HTTP-Daemon 6.01-5 OK
perl-HTTP-Date 6.02-5 OK
perl-HTTP-Message 6.11-1 OK
perl-HTTP-Negotiate 6.01-5 OK
perl-IO-HTML 1.001-2 OK
perl-libwww-perl 6.15-1 OK
perl-LWP-MediaTypes 6.02-5 OK
perl-Net-HTTP 6.09-1 OK
perl-Pod-Simple 3.32-1 OK
perl-Unicode-Normalize 1.25-1 OK
perl-URI 1.71-1 OK
perl-WWW-RobotRules 6.02-5 OK
perl-XML-Parser 2.44-2 OK
perl_autorebase 5.22.1-1 OK
perl_base 5.22.1-1 OK
pkg-config 0.29-1 OK
popt 1.16-1 OK
python 2.7.10-1 OK
python-beautifulsoup 3.2.1-1 OK
python-chardet 2.2.1-1 OK
python-lxml 3.4.4-1 OK
python-setuptools 15.2-1 OK
rcs 5.9.4-1 OK
rcs-debuginfo 5.9.4-1 OK
rebase 4.4.1-1 OK
rsync 3.1.2-1 OK
run 1.3.4-2 OK
sed 4.2.2-3 OK
shared-mime-info 1.6-2 OK
tar 1.28-1 OK
terminfo 6.0-4.20160305 OK
texinfo 6.1-2 OK
tzcode 2016a-1 OK
unzip 6.0-15 OK
util-linux 2.25.2-2 OK
vim-minimal 7.4.1506-1 OK
w32api-headers 4.0.4-1 OK
w32api-runtime 4.0.4-1 OK
wget 1.17.1-1 OK
which 2.20-2 OK
windows-default-manifest 6.4-1 OK
xkeyboard-config 2.17-1 OK
xproto 7.0.28-1 OK
xz 5.2.2-1 OK
zlib-devel 1.2.8-3 OK
zlib0 1.2.8-3 OK
Thanks
On Fri, Mar 11, 2016 at 3:49 PM, Meenakshi Pant
<meenakshi.pant28@gmail.com> wrote:
> Hi,
>
> My program creates a semaphore, but moving further the SEMCTL function
> is failing with error 22 with the latest CYGWIN 2.4. The cygserver is
> up.
>
> Below is the simplified code as a test case.It fails with the same
> error as my original program.
>
> /* semtest.c - program to test semaphore */
>
> #include <sys/types.h>
> #include <sys/ipc.h>
> #include <sys/sem.h>
> #include <stdio.h>
> #include <stdlib.h>
> #include <errno.h>
> extern int errno;
> #define KEY (1492)
>
> void main()
> {
> int id;
>
> printf("\n Semaphore Test");
>
> union semun {
> int val;
> struct semid_ds *buf;
> ushort * array;
> } argument;
>
> argument.val = 0;
>
> id = semget(KEY, 1, 0666 | IPC_CREAT);
>
> if(id < 0)
> {
> printf("\n Unable to obtain semaphore %d ", errno);
> exit(0);
> }
>
> printf("\n Semaphore created successfully %d ", id);
> printf("\n Value before errno = %d", errno );
>
> errno = 0;
>
> if( semctl(id, 0, SETVAL, argument) < 0)
> {
> printf("\nCannot set semaphore value.errno = %d", errno );
> }
> else
> {
> printf("Semaphore %d initialized.\n", KEY);
> }
> }
>
>
>
>
> Thanks
--
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