cygwin1 dll and JAVA-JNI dll loading is buggy
Hello Next year (using the current version of cygwin which I can not remember), I managed to load from java (JNI) a dll (build against cygwin1.dll) compiled with gcc under cygwin. Now , I have updated my cygwin (1.5.9 for me tooday), and it does not work any more. I saw on the cygwin mailing list that there is problems with DLL and JAVA under cygwin. is it ok know with the latest versions of cygwin1.dll ? TIA Gilles -- Faites un voeu et puis Voila ! www.voila.fr -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
PUTENV works fine if debugged with insight gdb but fails if in a standalone program !
hi folks, i am using getenv/putenv from stdlib (my source comes from UNIX world). the point is that getenv works fine, but I CANNOT modify variables with PUTENV !! Actually, if I debug with insight gdb a little foo.c using setenv , it works fine !!! I really do not undestand why (I suppose it is a question of shell environment) , so I wonder if some of you ever succeed with a simple putenv wriiten in a tiny C program ? thanks gilles -- Faites un voeu et puis Voila ! www.voila.fr -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
how to run a process from DOS within a cygwin .bat file
hello again does someone knows how to launch a cygwin shell and further commands from DOS, e.g with a help of a .bat file. I had a look of cygwin.bat file but I do not know the right syntax to give the command to the bash shell thanks gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
correction, I got the answer, sorry for disturb
sorry, it was only a question of bash : bash -c make a bash with string args. sorry again gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
LD_LIBRARY_PATH not accessible through java under cygwin for JNI
hi folks, I am currently using my JNI so/dll library under solaris, linux and cygwin. with solaris and linux, no problem, I bind to it using load(..) since the LD_LIBRARY_PATH is set. BUT, under cygwin/windows, it does not work and I shall tell the absolute path when I load the library. I hav already posted in java.machine, but Randall schulz told me to try in this mailing list. thanks for help gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
IPC message queue through JNI may not work because of java exec !
Hi folks, I have a java graphical debugging tool which communicates with a process (written in C) both shall communicate through IPC message queue (historic : the tools where running under solaris) The point is : From java side, ipc message queue is created with the help of a native dll beeing accessed through JNI from c side, the running process bind to the IPC queue and read data, this is OK if the process is ***launched from a cygwin shell*** (with or without gbd) BUT : if the running process is launched from java (within a System.exec(PROCESS)), the C-process CANNOT bind to the IPC queue!! I think my process does not share the same environment or what ? if someone got an idea about this ?, I may use another solution before going through a socket solution... thanks gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
PUTENV is not running
Hi folks, since getenv works fine, I manage to set a var with putenv, but it does not perfom any operation at all. (I am working with JNI, but I also tested putenv in a little simple foo programm) Does anyone know about this manipulation ? TIA gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
FIONREAD (fillio.h)
I have an old source code using filio.h and FIOREAD: since this is not in the cygwin distribution, I DO need FION READ and FIONBIO definitions for my program. Does cywgin define this constant somewhere ? thanks GBO -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
mainCRTStartup not found at link time (ld)
hi folks, I am compiling and linking a g++ parser program , I am using ld in my makefile: I got a warning at link time, then at execution time , my program failed (windows Segmentation fault, I even can not break with gdb in main main() code. the warning is : cannot find entry symbol _mainCRTStartup ; defaulting to 0x00401 is it the kind of thing that could fails my executable ? what does this message means ? thanks gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Using cygwin and JAVA/JNI
hello I wonder if it is possible to use JNI upon a DLL .i.e a shared libray like .so file generated with gcc, without the mno-cygwin option. (my lib uses IPC SYSTEM V, that is why I rely on the cygwin and cygipc libraries) I am mot a newbie with java/jni or gcc, but mixing all of them seems to crash the JVM. Of course, It works if the library is generated with gcc under linux but if executing the whole program (JVM instantiate) under cygwin, it fails. any one ever performed such a tricky architecture? thanks gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: Using cygwin and JAVA/JNI
thanks a lot, actually, with -Wl,--add-stdcall-alias to the gcc line, all worked fine. - Original Message - From: friedman_hill ernest j [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, January 17, 2003 5:27 PM Subject: Re: Using cygwin and JAVA/JNI Randall is usually 100% right about everything, but here he's actually not. I haven't done it in a long time, but I've certainly written JNI libraries with cygwin -- and in fact, used some fairly cygwin specific features in doing so (my JNI library explicitly used dlopen() to open another library, as I recall, and it all worked; and furthermore, much of my library was written in C++, but the JNI entry points were exported as 'extern C.') I was amazed and thrilled when it all worked. When I did this, Mumit Khan's web page on the topic was invaluable, but cygwin has changed a lot since then, so I'm sure the information is out of date. Anyway, you might start by looking at the JNI links halfway down this page: http://www.xraylith.wisc.edu/~khan/software/gnu-win32/ I think Randall R Schulz wrote: Gilles, I don't believe the ABI (application binary interface) used by the Microsoft compilers is compatible with that used by GCC and hence the Sun JVM, being compiled by the Microsoft tools, cannot access GCC-compiled libraries via JNI. Randall Schulz At 06:41 2003-01-17, gilles BOURGEOIS wrote: hello I wonder if it is possible to use JNI upon a DLL .i.e a shared libray like .so file generated with gcc, without the mno-cygwin option. (my lib uses IPC SYSTEM V, that is why I rely on the cygwin and cygipc libraries) I am not a newbie with java/jni or gcc, but mixing all of them seems to crash the JVM. Of course, It works if the library is generated with gcc under linux but if executing the whole program (JVM instantiate) under cygwin, it fails. Any one ever performed such a tricky architecture? thanks gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ - Ernest Friedman-Hill Distributed Systems ResearchPhone: (925) 294-2154 Sandia National LabsFAX: (925) 294-2234 PO Box 969, MS 9012 [EMAIL PROTECTED] Livermore, CA 94550 http://herzberg.ca.sandia.gov -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
mkfifo implementation ?
hi folks, is mkfifo still not implemented (I read mailing list archive fron end of 2003) , and I ran mkfifo which return -1 (and does not set errno) in my code. thanks gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: mkfifo implementation ?
And what about IPC message queue (msgget) ? It does returns -1 too, but may be error handling is not implemented ? - Original Message - From: Pavel Tsekov [EMAIL PROTECTED] To: gilles BOURGEOIS [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Tuesday, January 14, 2003 10:05 AM Subject: Re: mkfifo implementation ? On Tue, 14 Jan 2003, gilles BOURGEOIS wrote: hi folks, is mkfifo still not implemented (I read mailing list archive fron end of 2003) , and I ran mkfifo which return -1 (and does not set errno) in my code. Yes. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
msgget (IPC message queue) implementation
hi folks, is msgget (cygipc package) still running , and I ran msgget which return -1 (and does not set errno) in my code. thanks for help gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
setitimer failure
hello. I really have to know if the setitimer() primitive works well using cywgin dll I am currently using NT5.0 (2000) I call setitimer(ITIMER_VIRTUAL, interval, NULL) and it returns -1 with bad argument as errno . I do not understand why, because my arguments seemes to be ok to me ! Any help very appreciated. gilles
setitimer/SIGVTALRM error form cygwin shell.
Hello
I am trying to simulate a tick timer under cygwin but it does not work :
with the following code :
/* Initialise timer structure */
interval.it_interval.tv_sec = 1;
interval.it_interval.tv_usec = 0;
interval.it_value.tv_sec = 1;
interval.it_value.tv_usec = 0;
/* Initialise virtual timer */
if (!sigaction (SIGVTALRM, sigact, 0))
{
if ( (err=setitimer (ITIMER_PROF, s_Rtk_interval, NULL)) 0)
{printf (StartTimer could not setitimer %d\n,err);
printf (errno errno = %d (%s).\n, errno, strerror(errno));
exit (0);
}
}
else
{
fprintf( stderr, Erreur :%d\n, errno );
}
I got the invalid argument (errno) error ??
did someone manage the use of virtual timer under cygwin?
thanks
gilles
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setitimer failure
hello. I really have to know if the setitimer() primitive works well using cywgin dll I am currently using NT5.0 (2000) I call setitimer(ITIMER_VIRTUAL, interval, NULL) and it returns -1 with bad argument as errno . I do not understand why, because my arguments seemes to be ok to me ! Any help very appreciated. gilles -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
use of DLL without Cygwin/shell environment
hello, from france, (newbie using cygwin), i am wondering about how I could use the DLL API directly without prompting with the starting x terminal (bash commands) Thefact is I want to use this DLL in order to createa UNIX-C compilation process(makefile + gcc), but I do not want the end-user to enter the CYGWIN/Shell terminal and prompt for "make" and others unix command. let say this user is a windows one, and it does know anything about the unix world. so I wish I could develop a quick graphical front end, which offers the compilation functionnalities (configuration and launch tool) just with the help of mouse clicks, since this functionnality is running under the CYGWIN.DLL API (the user not even know he is using cygwin...). Thanks for any help. gilles
