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dbus-cplusplus-devel
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From: Zoltan B. <zol...@gm...> - 2009-09-08 14:01:34
|
Hello All,
I'm trying to mount and unmount devices through dbus-c++ binding,
using DeviceKit.Disks.Device interface methods.
While trying to unmount device, I get a 'SIGTRAP' signal.
Can anybody show me what I'm doing wrong in this code?
Thanks, any help is very appreciated.
// Proxy implementation
DisksDeviceProxy::DisksDeviceProxy(DBus::Connection &connection, const
char *object_path)
: DBus::InterfaceProxy("org.freedesktop.DeviceKit.Disks"),
DBus::ObjectProxy(connection, object_path,
"org.freedesktop.DeviceKit.Disks.Device")
{
}
// Mount device
void DisksDeviceProxy::MountDevice(const char *fstype,
std::vector<std::string> &options)
{
::DBus::CallMessage call;
::DBus::MessageIter wi = call.writer();
wi << fstype;
wi << options;
call.member("FilesystemMount");
::DBus::Message ret = invoke_method (call);
::DBus::MessageIter ri = ret.reader();
}
// Unmount device
void DisksDeviceProxy::UnMountDevice(std::vector<std::string> &options)
{
::DBus::CallMessage call;
::DBus::MessageIter wi = call.writer();
wi << options;
call.member("FilesystemUnmount");
::DBus::Message ret = invoke_method (call); // Signaled SIGTRAP right here
::DBus::MessageIter ri = ret.reader();
}
And here is the code, how I'm trying to unmount device:
//-- START
DBus::BusDispatcher dispatcher;
DBus::default_dispatcher = &dispatcher;
DBus::Connection conn = DBus::Connection::SystemBus();
DisksDeviceProxy devkit(conn,
"/org/freedesktop/DeviceKit/Disks/devices/sdb1"); // for now, just
hard coded value of my USB device
std::vector<std::string>options;
devkit.UnMountDevice(options);
//-- END
|
|
From: Andreas V. <li...@br...> - 2009-09-08 20:40:12
|
Am Tue, 8 Sep 2009 18:34:11 +0500 schrieb Zoltan Bencik:
Hello Zoltan,
I suggest you should compile dbus-c++ with debug option (--configure
--enable-debug), your application with -O0 -ggdb and run it in gdb.
This would tell us all a lot of useful information.
regards
Andreas
> Hello All,
>
> I'm trying to mount and unmount devices through dbus-c++ binding,
> using DeviceKit.Disks.Device interface methods.
> While trying to unmount device, I get a 'SIGTRAP' signal.
> Can anybody show me what I'm doing wrong in this code?
>
> Thanks, any help is very appreciated.
>
>
> // Proxy implementation
> DisksDeviceProxy::DisksDeviceProxy(DBus::Connection &connection, const
> char *object_path)
> : DBus::InterfaceProxy("org.freedesktop.DeviceKit.Disks"),
> DBus::ObjectProxy(connection, object_path,
> "org.freedesktop.DeviceKit.Disks.Device")
> {
> }
>
> // Mount device
> void DisksDeviceProxy::MountDevice(const char *fstype,
> std::vector<std::string> &options)
> {
> ::DBus::CallMessage call;
> ::DBus::MessageIter wi = call.writer();
>
> wi << fstype;
> wi << options;
> call.member("FilesystemMount");
> ::DBus::Message ret = invoke_method (call);
> ::DBus::MessageIter ri = ret.reader();
> }
>
> // Unmount device
> void DisksDeviceProxy::UnMountDevice(std::vector<std::string>
> &options) {
> ::DBus::CallMessage call;
> ::DBus::MessageIter wi = call.writer();
>
> wi << options;
> call.member("FilesystemUnmount");
> ::DBus::Message ret = invoke_method (call); // Signaled
> SIGTRAP right here ::DBus::MessageIter ri = ret.reader();
> }
>
> And here is the code, how I'm trying to unmount device:
> //-- START
> DBus::BusDispatcher dispatcher;
> DBus::default_dispatcher = &dispatcher;
>
> DBus::Connection conn = DBus::Connection::SystemBus();
>
> DisksDeviceProxy devkit(conn,
> "/org/freedesktop/DeviceKit/Disks/devices/sdb1"); // for now, just
> hard coded value of my USB device
> std::vector<std::string>options;
> devkit.UnMountDevice(options);
> //-- END
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008
> 30-Day trial. Simplify your report design, integration and deployment
> - and focus on what you do best, core application coding. Discover
> what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
> dbus-cplusplus-devel mailing list
> dbu...@li...
> https://lists.sourceforge.net/lists/listinfo/dbus-cplusplus-devel
>
|
|
From: Zoltan B. <zol...@gm...> - 2009-09-09 06:15:03
|
Hello Andreas,
Thanks for your kind response.
It seems like the GUI library(wxWidgets on Linux, wxGTK build) I'm
using is causing some problems(not sure).
Could you please tell me if my dbus-c++ usage is correct from the code
listed below?
Maybe I missed to register some callbacks, which I have to handle, or
passing method parameters incorrectly,
or anything else.
GUI library throws me an assert, which has to deal with even notifiers.
I tried to use dbus-c++ in console application, and UnMount worked just fine.
Here is the stack trace from Eclipse IDE, when I try to call invoke_method.
I don't think it will be any helpful, since it's trace when GUI is about to die.
Thread [1] (Suspended)
22 pthread_mutex_unlock() 0x00ab51a0
21 _dl_open() 0x008f69eb
20 do_dlopen() 0x00a22952
19 _dl_catch_error() 0x008f2806
18 __libc_dlopen_mode() 0x00a22b15
17 init() 0x009fb858
16 pthread_once() 0x00ab73f0
15 backtrace() 0x009fba45
14 wxStackWalker::SaveStack()
/home/zoltan/Development/wx/src/unix/stackwalk.cpp:169 0x083edb79
13 wxGUIAppTraits::ShowAssertDialog()
/home/zoltan/Development/wx/src/gtk/utilsgtk.cpp:379 0x08216dd8
12 ShowAssertDialog()
/home/zoltan/Development/wx/src/common/appbase.cpp:836 0x08363cd0
11 wxAppConsole::OnAssertFailure()
/home/zoltan/Development/wx/src/common/appbase.cpp:445 0x08364042
10 wxApp::OnAssertFailure()
/home/zoltan/Development/wx/src/gtk/app.cpp:556 0x0820556f
9 wxOnAssert() /home/zoltan/Development/wx/src/common/appbase.cpp:711
0x08363df7
8 wxEventLoop::~wxEventLoop()
/home/zoltan/Development/wx/src/gtk/evtloop.cpp:64 0x0830fedf
7 wxEventLoopPtr::~wxEventLoopPtr()
/home/zoltan/Development/wx/src/common/appcmn.cpp:74 0x0826f6d5
6 wxEventLoopTiedPtr::~wxEventLoopTiedPtr()
/home/zoltan/Development/wx/src/common/appcmn.cpp:74 0x082705f1
5 wxAppBase::MainLoop()
/home/zoltan/Development/wx/src/common/appcmn.cpp:312 0x0826fe7a
4 wxAppBase::OnRun()
/home/zoltan/Development/wx/src/common/appcmn.cpp:367 0x0826f8b3
3 wxEntry() /home/zoltan/Development/wx/src/common/init.cpp:460 0x08395273
2 wxEntry() /home/zoltan/Development/wx/src/common/init.cpp:472 0x08395479
1 main() /home/zoltan/Development/DBusCPPTest/src/main_app.cpp:42 0x0808438b
Thanks.
br,
-zoltan.
On Wed, Sep 9, 2009 at 1:35 AM, Andreas Volz<li...@br...> wrote:
> Am Tue, 8 Sep 2009 18:34:11 +0500 schrieb Zoltan Bencik:
>
> Hello Zoltan,
>
> I suggest you should compile dbus-c++ with debug option (--configure
> --enable-debug), your application with -O0 -ggdb and run it in gdb.
>
> This would tell us all a lot of useful information.
>
> regards
> Andreas
>
>> Hello All,
>>
>> I'm trying to mount and unmount devices through dbus-c++ binding,
>> using DeviceKit.Disks.Device interface methods.
>> While trying to unmount device, I get a 'SIGTRAP' signal.
>> Can anybody show me what I'm doing wrong in this code?
>>
>> Thanks, any help is very appreciated.
>>
>>
>> // Proxy implementation
>> DisksDeviceProxy::DisksDeviceProxy(DBus::Connection &connection, const
>> char *object_path)
>> : DBus::InterfaceProxy("org.freedesktop.DeviceKit.Disks"),
>> DBus::ObjectProxy(connection, object_path,
>> "org.freedesktop.DeviceKit.Disks.Device")
>> {
>> }
>>
>> // Mount device
>> void DisksDeviceProxy::MountDevice(const char *fstype,
>> std::vector<std::string> &options)
>> {
>> ::DBus::CallMessage call;
>> ::DBus::MessageIter wi = call.writer();
>>
>> wi << fstype;
>> wi << options;
>> call.member("FilesystemMount");
>> ::DBus::Message ret = invoke_method (call);
>> ::DBus::MessageIter ri = ret.reader();
>> }
>>
>> // Unmount device
>> void DisksDeviceProxy::UnMountDevice(std::vector<std::string>
>> &options) {
>> ::DBus::CallMessage call;
>> ::DBus::MessageIter wi = call.writer();
>>
>> wi << options;
>> call.member("FilesystemUnmount");
>> ::DBus::Message ret = invoke_method (call); // Signaled
>> SIGTRAP right here ::DBus::MessageIter ri = ret.reader();
>> }
>>
>> And here is the code, how I'm trying to unmount device:
>> //-- START
>> DBus::BusDispatcher dispatcher;
>> DBus::default_dispatcher = &dispatcher;
>>
>> DBus::Connection conn = DBus::Connection::SystemBus();
>>
>> DisksDeviceProxy devkit(conn,
>> "/org/freedesktop/DeviceKit/Disks/devices/sdb1"); // for now, just
>> hard coded value of my USB device
>> std::vector<std::string>options;
>> devkit.UnMountDevice(options);
>> //-- END
>>
>> ------------------------------------------------------------------------------
>> Let Crystal Reports handle the reporting - Free Crystal Reports 2008
>> 30-Day trial. Simplify your report design, integration and deployment
>> - and focus on what you do best, core application coding. Discover
>> what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july
>> _______________________________________________
>> dbus-cplusplus-devel mailing list
>> dbu...@li...
>> https://lists.sourceforge.net/lists/listinfo/dbus-cplusplus-devel
>>
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
> trial. Simplify your report design, integration and deployment - and focus on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
> dbus-cplusplus-devel mailing list
> dbu...@li...
> https://lists.sourceforge.net/lists/listinfo/dbus-cplusplus-devel
>
|
|
From: Andreas V. <li...@br...> - 2009-09-09 18:35:19
|
Am Wed, 9 Sep 2009 11:14:57 +0500 schrieb Zoltan Bencik:
Hello Zoltan,
I think that I know the problem. You use the DBus::BusDispatcher
dispatcher Dbus-C++ own main loop. This is not very good tested and
many people have reported problems.
I use the glib and ecore (Gitorious branch) main loop integration with
success. You need a main loop integration that fits to wxWidgets. I'm
sure nobody has tested this yet. Maybe it will work because the wxGTK
toolkit works together with the glib main loop integration.
But pay attention that then it works only with wxGtk, but not other
wxWidget backends.
Look in the glib example hot to use it.
regards
Andreas
> Hello Andreas,
>
> Thanks for your kind response.
>
> It seems like the GUI library(wxWidgets on Linux, wxGTK build) I'm
> using is causing some problems(not sure).
> Could you please tell me if my dbus-c++ usage is correct from the code
> listed below?
> Maybe I missed to register some callbacks, which I have to handle, or
> passing method parameters incorrectly,
> or anything else.
> GUI library throws me an assert, which has to deal with even
> notifiers. I tried to use dbus-c++ in console application, and
> UnMount worked just fine.
>
> Here is the stack trace from Eclipse IDE, when I try to call
> invoke_method. I don't think it will be any helpful, since it's trace
> when GUI is about to die.
>
> Thread [1] (Suspended)
> 22 pthread_mutex_unlock() 0x00ab51a0
> 21 _dl_open() 0x008f69eb
> 20 do_dlopen() 0x00a22952
> 19 _dl_catch_error() 0x008f2806
> 18 __libc_dlopen_mode() 0x00a22b15
> 17 init() 0x009fb858
> 16 pthread_once() 0x00ab73f0
> 15 backtrace() 0x009fba45
> 14 wxStackWalker::SaveStack()
> /home/zoltan/Development/wx/src/unix/stackwalk.cpp:169 0x083edb79
> 13 wxGUIAppTraits::ShowAssertDialog()
> /home/zoltan/Development/wx/src/gtk/utilsgtk.cpp:379 0x08216dd8
> 12 ShowAssertDialog()
> /home/zoltan/Development/wx/src/common/appbase.cpp:836 0x08363cd0
> 11 wxAppConsole::OnAssertFailure()
> /home/zoltan/Development/wx/src/common/appbase.cpp:445 0x08364042
> 10 wxApp::OnAssertFailure()
> /home/zoltan/Development/wx/src/gtk/app.cpp:556 0x0820556f
> 9
> wxOnAssert() /home/zoltan/Development/wx/src/common/appbase.cpp:711
> 0x08363df7 8 wxEventLoop::~wxEventLoop()
> /home/zoltan/Development/wx/src/gtk/evtloop.cpp:64 0x0830fedf
> 7 wxEventLoopPtr::~wxEventLoopPtr()
> /home/zoltan/Development/wx/src/common/appcmn.cpp:74 0x0826f6d5
> 6 wxEventLoopTiedPtr::~wxEventLoopTiedPtr()
> /home/zoltan/Development/wx/src/common/appcmn.cpp:74 0x082705f1
> 5 wxAppBase::MainLoop()
> /home/zoltan/Development/wx/src/common/appcmn.cpp:312 0x0826fe7a
> 4 wxAppBase::OnRun()
> /home/zoltan/Development/wx/src/common/appcmn.cpp:367 0x0826f8b3
> 3
> wxEntry() /home/zoltan/Development/wx/src/common/init.cpp:460
> 0x08395273 2
> wxEntry() /home/zoltan/Development/wx/src/common/init.cpp:472
> 0x08395479 1
> main() /home/zoltan/Development/DBusCPPTest/src/main_app.cpp:42
> 0x0808438b
>
>
> Thanks.
> br,
> -zoltan.
>
> On Wed, Sep 9, 2009 at 1:35 AM, Andreas Volz<li...@br...>
> wrote:
> > Am Tue, 8 Sep 2009 18:34:11 +0500 schrieb Zoltan Bencik:
> >
> > Hello Zoltan,
> >
> > I suggest you should compile dbus-c++ with debug option (--configure
> > --enable-debug), your application with -O0 -ggdb and run it in gdb.
> >
> > This would tell us all a lot of useful information.
> >
> > regards
> > Andreas
> >
> >> Hello All,
> >>
> >> I'm trying to mount and unmount devices through dbus-c++ binding,
> >> using DeviceKit.Disks.Device interface methods.
> >> While trying to unmount device, I get a 'SIGTRAP' signal.
> >> Can anybody show me what I'm doing wrong in this code?
> >>
> >> Thanks, any help is very appreciated.
> >>
> >>
> >> // Proxy implementation
> >> DisksDeviceProxy::DisksDeviceProxy(DBus::Connection &connection,
> >> const char *object_path)
> >> : DBus::InterfaceProxy("org.freedesktop.DeviceKit.Disks"),
> >> DBus::ObjectProxy(connection, object_path,
> >> "org.freedesktop.DeviceKit.Disks.Device")
> >> {
> >> }
> >>
> >> // Mount device
> >> void DisksDeviceProxy::MountDevice(const char *fstype,
> >> std::vector<std::string> &options)
> >> {
> >> ::DBus::CallMessage call;
> >> ::DBus::MessageIter wi = call.writer();
> >>
> >> wi << fstype;
> >> wi << options;
> >> call.member("FilesystemMount");
> >> ::DBus::Message ret = invoke_method (call);
> >> ::DBus::MessageIter ri = ret.reader();
> >> }
> >>
> >> // Unmount device
> >> void DisksDeviceProxy::UnMountDevice(std::vector<std::string>
> >> &options) {
> >> ::DBus::CallMessage call;
> >> ::DBus::MessageIter wi = call.writer();
> >>
> >> wi << options;
> >> call.member("FilesystemUnmount");
> >> ::DBus::Message ret = invoke_method (call); // Signaled
> >> SIGTRAP right here ::DBus::MessageIter ri = ret.reader();
> >> }
> >>
> >> And here is the code, how I'm trying to unmount device:
> >> //-- START
> >> DBus::BusDispatcher dispatcher;
> >> DBus::default_dispatcher = &dispatcher;
> >>
> >> DBus::Connection conn = DBus::Connection::SystemBus();
> >>
> >> DisksDeviceProxy devkit(conn,
> >> "/org/freedesktop/DeviceKit/Disks/devices/sdb1"); // for now, just
> >> hard coded value of my USB device
> >> std::vector<std::string>options;
> >> devkit.UnMountDevice(options);
> >> //-- END
> >>
> >> ------------------------------------------------------------------------------
> >> Let Crystal Reports handle the reporting - Free Crystal Reports
> >> 2008 30-Day trial. Simplify your report design, integration and
> >> deployment
> >> - and focus on what you do best, core application coding. Discover
> >> what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july
> >> _______________________________________________
> >> dbus-cplusplus-devel mailing list
> >> dbu...@li...
> >> https://lists.sourceforge.net/lists/listinfo/dbus-cplusplus-devel
> >>
> >
> > ------------------------------------------------------------------------------
> > Let Crystal Reports handle the reporting - Free Crystal Reports
> > 2008 30-Day trial. Simplify your report design, integration and
> > deployment - and focus on what you do best, core application
> > coding. Discover what's new with Crystal Reports now.
> > http://p.sf.net/sfu/bobj-july
> > _______________________________________________
> > dbus-cplusplus-devel mailing list
> > dbu...@li...
> > https://lists.sourceforge.net/lists/listinfo/dbus-cplusplus-devel
> >
>
|
|
From: Zoltan B. <zol...@gm...> - 2009-09-10 07:46:50
|
Hello Andreas,
Yes, dbus-c++ main loop was causing this problem.
I solved this issue by firing all dbus-c++ calls in separate thread
and now everything works as it should.
This is temporary solution, which I'll be later rewriting to wx event loops.
Thanks for your help.
On Wed, Sep 9, 2009 at 11:32 PM, Andreas Volz <li...@br...> wrote:
> Am Wed, 9 Sep 2009 11:14:57 +0500 schrieb Zoltan Bencik:
>
> Hello Zoltan,
>
> I think that I know the problem. You use the DBus::BusDispatcher
> dispatcher Dbus-C++ own main loop. This is not very good tested and
> many people have reported problems.
>
> I use the glib and ecore (Gitorious branch) main loop integration with
> success. You need a main loop integration that fits to wxWidgets. I'm
> sure nobody has tested this yet. Maybe it will work because the wxGTK
> toolkit works together with the glib main loop integration.
>
> But pay attention that then it works only with wxGtk, but not other
> wxWidget backends.
>
> Look in the glib example hot to use it.
>
> regards
> Andreas
>
>> Hello Andreas,
>>
>> Thanks for your kind response.
>>
>> It seems like the GUI library(wxWidgets on Linux, wxGTK build) I'm
>> using is causing some problems(not sure).
>> Could you please tell me if my dbus-c++ usage is correct from the code
>> listed below?
>> Maybe I missed to register some callbacks, which I have to handle, or
>> passing method parameters incorrectly,
>> or anything else.
>> GUI library throws me an assert, which has to deal with even
>> notifiers. I tried to use dbus-c++ in console application, and
>> UnMount worked just fine.
>>
>> Here is the stack trace from Eclipse IDE, when I try to call
>> invoke_method. I don't think it will be any helpful, since it's trace
>> when GUI is about to die.
>>
>> Thread [1] (Suspended)
>> 22 pthread_mutex_unlock() 0x00ab51a0
>> 21 _dl_open() 0x008f69eb
>> 20 do_dlopen() 0x00a22952
>> 19 _dl_catch_error() 0x008f2806
>> 18 __libc_dlopen_mode() 0x00a22b15
>> 17 init() 0x009fb858
>> 16 pthread_once() 0x00ab73f0
>> 15 backtrace() 0x009fba45
>> 14 wxStackWalker::SaveStack()
>> /home/zoltan/Development/wx/src/unix/stackwalk.cpp:169 0x083edb79
>> 13 wxGUIAppTraits::ShowAssertDialog()
>> /home/zoltan/Development/wx/src/gtk/utilsgtk.cpp:379 0x08216dd8
>> 12 ShowAssertDialog()
>> /home/zoltan/Development/wx/src/common/appbase.cpp:836 0x08363cd0
>> 11 wxAppConsole::OnAssertFailure()
>> /home/zoltan/Development/wx/src/common/appbase.cpp:445 0x08364042
>> 10 wxApp::OnAssertFailure()
>> /home/zoltan/Development/wx/src/gtk/app.cpp:556 0x0820556f
>> 9
>> wxOnAssert() /home/zoltan/Development/wx/src/common/appbase.cpp:711
>> 0x08363df7 8 wxEventLoop::~wxEventLoop()
>> /home/zoltan/Development/wx/src/gtk/evtloop.cpp:64 0x0830fedf
>> 7 wxEventLoopPtr::~wxEventLoopPtr()
>> /home/zoltan/Development/wx/src/common/appcmn.cpp:74 0x0826f6d5
>> 6 wxEventLoopTiedPtr::~wxEventLoopTiedPtr()
>> /home/zoltan/Development/wx/src/common/appcmn.cpp:74 0x082705f1
>> 5 wxAppBase::MainLoop()
>> /home/zoltan/Development/wx/src/common/appcmn.cpp:312 0x0826fe7a
>> 4 wxAppBase::OnRun()
>> /home/zoltan/Development/wx/src/common/appcmn.cpp:367 0x0826f8b3
>> 3
>> wxEntry() /home/zoltan/Development/wx/src/common/init.cpp:460
>> 0x08395273 2
>> wxEntry() /home/zoltan/Development/wx/src/common/init.cpp:472
>> 0x08395479 1
>> main() /home/zoltan/Development/DBusCPPTest/src/main_app.cpp:42
>> 0x0808438b
>>
>>
>> Thanks.
>> br,
>> -zoltan.
>>
>> On Wed, Sep 9, 2009 at 1:35 AM, Andreas Volz<li...@br...>
>> wrote:
>> > Am Tue, 8 Sep 2009 18:34:11 +0500 schrieb Zoltan Bencik:
>> >
>> > Hello Zoltan,
>> >
>> > I suggest you should compile dbus-c++ with debug option (--configure
>> > --enable-debug), your application with -O0 -ggdb and run it in gdb.
>> >
>> > This would tell us all a lot of useful information.
>> >
>> > regards
>> > Andreas
>> >
>> >> Hello All,
>> >>
>> >> I'm trying to mount and unmount devices through dbus-c++ binding,
>> >> using DeviceKit.Disks.Device interface methods.
>> >> While trying to unmount device, I get a 'SIGTRAP' signal.
>> >> Can anybody show me what I'm doing wrong in this code?
>> >>
>> >> Thanks, any help is very appreciated.
>> >>
>> >>
>> >> // Proxy implementation
>> >> DisksDeviceProxy::DisksDeviceProxy(DBus::Connection &connection,
>> >> const char *object_path)
>> >> : DBus::InterfaceProxy("org.freedesktop.DeviceKit.Disks"),
>> >> DBus::ObjectProxy(connection, object_path,
>> >> "org.freedesktop.DeviceKit.Disks.Device")
>> >> {
>> >> }
>> >>
>> >> // Mount device
>> >> void DisksDeviceProxy::MountDevice(const char *fstype,
>> >> std::vector<std::string> &options)
>> >> {
>> >> ::DBus::CallMessage call;
>> >> ::DBus::MessageIter wi = call.writer();
>> >>
>> >> wi << fstype;
>> >> wi << options;
>> >> call.member("FilesystemMount");
>> >> ::DBus::Message ret = invoke_method (call);
>> >> ::DBus::MessageIter ri = ret.reader();
>> >> }
>> >>
>> >> // Unmount device
>> >> void DisksDeviceProxy::UnMountDevice(std::vector<std::string>
>> >> &options) {
>> >> ::DBus::CallMessage call;
>> >> ::DBus::MessageIter wi = call.writer();
>> >>
>> >> wi << options;
>> >> call.member("FilesystemUnmount");
>> >> ::DBus::Message ret = invoke_method (call); // Signaled
>> >> SIGTRAP right here ::DBus::MessageIter ri = ret.reader();
>> >> }
>> >>
>> >> And here is the code, how I'm trying to unmount device:
>> >> //-- START
>> >> DBus::BusDispatcher dispatcher;
>> >> DBus::default_dispatcher = &dispatcher;
>> >>
>> >> DBus::Connection conn = DBus::Connection::SystemBus();
>> >>
>> >> DisksDeviceProxy devkit(conn,
>> >> "/org/freedesktop/DeviceKit/Disks/devices/sdb1"); // for now, just
>> >> hard coded value of my USB device
>> >> std::vector<std::string>options;
>> >> devkit.UnMountDevice(options);
>> >> //-- END
>> >>
>> >> ------------------------------------------------------------------------------
>> >> Let Crystal Reports handle the reporting - Free Crystal Reports
>> >> 2008 30-Day trial. Simplify your report design, integration and
>> >> deployment
>> >> - and focus on what you do best, core application coding. Discover
>> >> what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july
>> >> _______________________________________________
>> >> dbus-cplusplus-devel mailing list
>> >> dbu...@li...
>> >> https://lists.sourceforge.net/lists/listinfo/dbus-cplusplus-devel
>> >>
>> >
>> > ------------------------------------------------------------------------------
>> > Let Crystal Reports handle the reporting - Free Crystal Reports
>> > 2008 30-Day trial. Simplify your report design, integration and
>> > deployment - and focus on what you do best, core application
>> > coding. Discover what's new with Crystal Reports now.
>> > http://p.sf.net/sfu/bobj-july
>> > _______________________________________________
>> > dbus-cplusplus-devel mailing list
>> > dbu...@li...
>> > https://lists.sourceforge.net/lists/listinfo/dbus-cplusplus-devel
>> >
>>
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
> trial. Simplify your report design, integration and deployment - and focus on
> what you do best, core application coding. Discover what's new with
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--
Best regards,
-zoltan.
|
|
From: Andreas V. <li...@br...> - 2009-09-13 18:35:21
|
Am Thu, 10 Sep 2009 12:46:38 +0500 schrieb Zoltan Bencik:
Hello Zoltan,
If you progress with wx main loop integration please come back. I'm
interested to get this into the dbus-c++ source.
regards
Andreas
> Hello Andreas,
>
> Yes, dbus-c++ main loop was causing this problem.
> I solved this issue by firing all dbus-c++ calls in separate thread
> and now everything works as it should.
> This is temporary solution, which I'll be later rewriting to wx event
> loops.
>
> Thanks for your help.
>
>
> On Wed, Sep 9, 2009 at 11:32 PM, Andreas Volz <li...@br...>
> wrote:
> > Am Wed, 9 Sep 2009 11:14:57 +0500 schrieb Zoltan Bencik:
> >
> > Hello Zoltan,
> >
> > I think that I know the problem. You use the DBus::BusDispatcher
> > dispatcher Dbus-C++ own main loop. This is not very good tested and
> > many people have reported problems.
> >
> > I use the glib and ecore (Gitorious branch) main loop integration
> > with success. You need a main loop integration that fits to
> > wxWidgets. I'm sure nobody has tested this yet. Maybe it will work
> > because the wxGTK toolkit works together with the glib main loop
> > integration.
> >
> > But pay attention that then it works only with wxGtk, but not other
> > wxWidget backends.
> >
> > Look in the glib example hot to use it.
> >
> > regards
> > Andreas
> >
> >> Hello Andreas,
> >>
> >> Thanks for your kind response.
> >>
> >> It seems like the GUI library(wxWidgets on Linux, wxGTK build) I'm
> >> using is causing some problems(not sure).
> >> Could you please tell me if my dbus-c++ usage is correct from the
> >> code listed below?
> >> Maybe I missed to register some callbacks, which I have to handle,
> >> or passing method parameters incorrectly,
> >> or anything else.
> >> GUI library throws me an assert, which has to deal with even
> >> notifiers. I tried to use dbus-c++ in console application, and
> >> UnMount worked just fine.
> >>
> >> Here is the stack trace from Eclipse IDE, when I try to call
> >> invoke_method. I don't think it will be any helpful, since it's
> >> trace when GUI is about to die.
> >>
> >> Thread [1] (Suspended)
> >> 22 pthread_mutex_unlock() 0x00ab51a0
> >> 21 _dl_open() 0x008f69eb
> >> 20 do_dlopen() 0x00a22952
> >> 19 _dl_catch_error() 0x008f2806
> >> 18 __libc_dlopen_mode() 0x00a22b15
> >> 17 init() 0x009fb858
> >> 16 pthread_once() 0x00ab73f0
> >> 15 backtrace() 0x009fba45
> >> 14 wxStackWalker::SaveStack()
> >> /home/zoltan/Development/wx/src/unix/stackwalk.cpp:169 0x083edb79
> >> 13 wxGUIAppTraits::ShowAssertDialog()
> >> /home/zoltan/Development/wx/src/gtk/utilsgtk.cpp:379 0x08216dd8
> >> 12 ShowAssertDialog()
> >> /home/zoltan/Development/wx/src/common/appbase.cpp:836 0x08363cd0
> >> 11 wxAppConsole::OnAssertFailure()
> >> /home/zoltan/Development/wx/src/common/appbase.cpp:445 0x08364042
> >> 10 wxApp::OnAssertFailure()
> >> /home/zoltan/Development/wx/src/gtk/app.cpp:556 0x0820556f
> >> 9
> >> wxOnAssert() /home/zoltan/Development/wx/src/common/appbase.cpp:711
> >> 0x08363df7 8 wxEventLoop::~wxEventLoop()
> >> /home/zoltan/Development/wx/src/gtk/evtloop.cpp:64 0x0830fedf
> >> 7 wxEventLoopPtr::~wxEventLoopPtr()
> >> /home/zoltan/Development/wx/src/common/appcmn.cpp:74 0x0826f6d5
> >> 6 wxEventLoopTiedPtr::~wxEventLoopTiedPtr()
> >> /home/zoltan/Development/wx/src/common/appcmn.cpp:74 0x082705f1
> >> 5 wxAppBase::MainLoop()
> >> /home/zoltan/Development/wx/src/common/appcmn.cpp:312 0x0826fe7a
> >> 4 wxAppBase::OnRun()
> >> /home/zoltan/Development/wx/src/common/appcmn.cpp:367 0x0826f8b3
> >> 3
> >> wxEntry() /home/zoltan/Development/wx/src/common/init.cpp:460
> >> 0x08395273 2
> >> wxEntry() /home/zoltan/Development/wx/src/common/init.cpp:472
> >> 0x08395479 1
> >> main() /home/zoltan/Development/DBusCPPTest/src/main_app.cpp:42
> >> 0x0808438b
> >>
> >>
> >> Thanks.
> >> br,
> >> -zoltan.
> >>
> >> On Wed, Sep 9, 2009 at 1:35 AM, Andreas Volz<li...@br...>
> >> wrote:
> >> > Am Tue, 8 Sep 2009 18:34:11 +0500 schrieb Zoltan Bencik:
> >> >
> >> > Hello Zoltan,
> >> >
> >> > I suggest you should compile dbus-c++ with debug option
> >> > (--configure --enable-debug), your application with -O0 -ggdb
> >> > and run it in gdb.
> >> >
> >> > This would tell us all a lot of useful information.
> >> >
> >> > regards
> >> > Andreas
> >> >
> >> >> Hello All,
> >> >>
> >> >> I'm trying to mount and unmount devices through dbus-c++
> >> >> binding, using DeviceKit.Disks.Device interface methods.
> >> >> While trying to unmount device, I get a 'SIGTRAP' signal.
> >> >> Can anybody show me what I'm doing wrong in this code?
> >> >>
> >> >> Thanks, any help is very appreciated.
> >> >>
> >> >>
> >> >> // Proxy implementation
> >> >> DisksDeviceProxy::DisksDeviceProxy(DBus::Connection &connection,
> >> >> const char *object_path)
> >> >> : DBus::InterfaceProxy("org.freedesktop.DeviceKit.Disks"),
> >> >> DBus::ObjectProxy(connection, object_path,
> >> >> "org.freedesktop.DeviceKit.Disks.Device")
> >> >> {
> >> >> }
> >> >>
> >> >> // Mount device
> >> >> void DisksDeviceProxy::MountDevice(const char *fstype,
> >> >> std::vector<std::string> &options)
> >> >> {
> >> >> ::DBus::CallMessage call;
> >> >> ::DBus::MessageIter wi = call.writer();
> >> >>
> >> >> wi << fstype;
> >> >> wi << options;
> >> >> call.member("FilesystemMount");
> >> >> ::DBus::Message ret = invoke_method (call);
> >> >> ::DBus::MessageIter ri = ret.reader();
> >> >> }
> >> >>
> >> >> // Unmount device
> >> >> void DisksDeviceProxy::UnMountDevice(std::vector<std::string>
> >> >> &options) {
> >> >> ::DBus::CallMessage call;
> >> >> ::DBus::MessageIter wi = call.writer();
> >> >>
> >> >> wi << options;
> >> >> call.member("FilesystemUnmount");
> >> >> ::DBus::Message ret = invoke_method (call); // Signaled
> >> >> SIGTRAP right here ::DBus::MessageIter ri = ret.reader();
> >> >> }
> >> >>
> >> >> And here is the code, how I'm trying to unmount device:
> >> >> //-- START
> >> >> DBus::BusDispatcher dispatcher;
> >> >> DBus::default_dispatcher = &dispatcher;
> >> >>
> >> >> DBus::Connection conn = DBus::Connection::SystemBus();
> >> >>
> >> >> DisksDeviceProxy devkit(conn,
> >> >> "/org/freedesktop/DeviceKit/Disks/devices/sdb1"); // for now,
> >> >> just hard coded value of my USB device
> >> >> std::vector<std::string>options;
> >> >> devkit.UnMountDevice(options);
> >> >> //-- END
> >> >>
> >> >> ------------------------------------------------------------------------------
> >> >> Let Crystal Reports handle the reporting - Free Crystal Reports
> >> >> 2008 30-Day trial. Simplify your report design, integration and
> >> >> deployment
> >> >> - and focus on what you do best, core application coding.
> >> >> Discover what's new with Crystal Reports now.
> >> >> http://p.sf.net/sfu/bobj-july
> >> >> _______________________________________________
> >> >> dbus-cplusplus-devel mailing list
> >> >> dbu...@li...
> >> >> https://lists.sourceforge.net/lists/listinfo/dbus-cplusplus-devel
> >> >>
> >> >
> >> > ------------------------------------------------------------------------------
> >> > Let Crystal Reports handle the reporting - Free Crystal Reports
> >> > 2008 30-Day trial. Simplify your report design, integration and
> >> > deployment - and focus on what you do best, core application
> >> > coding. Discover what's new with Crystal Reports now.
> >> > http://p.sf.net/sfu/bobj-july
> >> > _______________________________________________
> >> > dbus-cplusplus-devel mailing list
> >> > dbu...@li...
> >> > https://lists.sourceforge.net/lists/listinfo/dbus-cplusplus-devel
> >> >
> >>
> >
> > ------------------------------------------------------------------------------
> > Let Crystal Reports handle the reporting - Free Crystal Reports
> > 2008 30-Day trial. Simplify your report design, integration and
> > deployment - and focus on what you do best, core application
> > coding. Discover what's new with Crystal Reports now.
> > http://p.sf.net/sfu/bobj-july
> > _______________________________________________
> > dbus-cplusplus-devel mailing list
> > dbu...@li...
> > https://lists.sourceforge.net/lists/listinfo/dbus-cplusplus-devel
> >
>
>
>
> --
> Best regards,
> -zoltan.
>
|
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