hi all,
My intention is to let two applications communicate using DBus .
i know that DBus is already integrated into android,Dbus binaries DBus
send,DBus-monitor,DBus-daemon are already available.
i am trying to create an application which will connect to the Dbus
and start sending signals and messages over DBus . for this i have
used basic DBus API's to establish connection to the bus.
i have written native code to connect to the DBus.here is the code
static void
Java_com_example_android_simplejni_SimpleJNI_DBusConnect(JNIEnv *env,
jobject thiz) {
DBusConnection *connection;
DBusError error;
dbus_error_init(&error); /* Initialize the error structure */
connection = dbus_bus_get(DBUS_BUS_SESSION,&error); /* Or
DBUS_BUS_SYSTEM */
if ( dbus_error_is_set(&error) )
{
LOGI("Error connecting to the daemon bus");
dbus_error_free(&error);
}
LOGI("Dbus connected");
}
i included the above module into the android repo(android build
system) and compiled it .i got the native library
libsimplejni.so .i copied this into the libs/armeabi/ folder and ran
the application from eclipse.
i am not able to see the output ,i get the following messages when i
see the logcat .
Starting activity: Intent { action=android.intent.action.MAIN
categories={android.intent.category.LAUNCHER} flags=0x10000000
comp={com.MultPkg/com.MultPkg.Mult} }
D/AndroidRuntime( 1386): Shutting down VM
D/dalvikvm( 1386): DestroyJavaVM waiting for non-daemon threads to
exit
D/dalvikvm( 1386): DestroyJavaVM shutting VM down
D/dalvikvm( 1386): HeapWorker thread shutting down
D/dalvikvm( 1386): HeapWorker thread has shut down
D/jdwp ( 1386): JDWP shutting down net...
D/jdwp ( 1386): +++ peer disconnected
I/dalvikvm( 1386): Debugger has detached; object registry had 1
entries
D/dalvikvm( 1386): VM cleaning up
I/ActivityManager( 578): Start proc com.MultPkg for activity
com.MultPkg/.Mult: pid=1392 uid=10025 gids={}
D/dalvikvm( 1386): LinearAlloc 0x0 used 639228 of 4194304 (15%)
I/jdwp ( 1392): received file descriptor 20 from ADB
W/System.err( 1392): Can't dispatch DDM chunk 4d505251: no handler
defined
I/JNI ( 1392): Trying to load libMult.so
D/dalvikvm( 1392): Trying to load lib /data/data/com.MultPkg/lib/
libMult.so 0x435bc6a0
D/dalvikvm( 1392): Added shared lib /data/data/com.MultPkg/lib/
libMult.so 0x435bc6a0
D/libc-abort( 1392): abort() called in pid 1392
I/DEBUG ( 551): *** *** *** *** *** *** *** *** *** *** *** *** ***
*** *** ***
I/DEBUG ( 551): Build fingerprint: 'generic/generic/generic/:1.5/
CUPCAKE/eng.root.20101026.172257:eng/test-keys'
I/DEBUG ( 551): pid: 1392, tid: 1392 >>> com.MultPkg <<<
I/DEBUG ( 551): signal 11 (SIGSEGV), fault addr deadbaad
I/DEBUG ( 551): r0 00000003 r1 deadbaad r2 00000027 r3 ffff6150
I/DEBUG ( 551): r4 ffff6128 r5 afe2fef8 r6 afe39dd0 r7 be9ab360
I/DEBUG ( 551): r8 be9ab550 r9 41049d24 10 41049d10 fp 00000000
I/DEBUG ( 551): ip 0000001b sp be9ab2c8 lr afe1ff33 pc
afe1066a cpsr 20000030
I/DEBUG ( 551): #00 pc 0001066a /system/lib/libc.so
I/DEBUG ( 551): #01 pc 00032a42 /system/lib/libdbus.so
I/DEBUG ( 551): #02 pc 00017ce8 /system/lib/libdbus.so
I/DEBUG ( 551): #03 pc 00017d48 /system/lib/libdbus.so
I/DEBUG ( 551): #04 pc 000310e4 /system/lib/libdbus.so
I/DEBUG ( 551): #05 pc 0003562c /system/lib/libdbus.so
I/DEBUG ( 551): #06 pc 00035726 /system/lib/libdbus.so
I/DEBUG ( 551): #07 pc 000353f4 /system/lib/libdbus.so
I/DEBUG ( 551): #08 pc 00012e02 /system/lib/libdbus.so
I/DEBUG ( 551): #09 pc 0001531a /system/lib/libdbus.so
I/DEBUG ( 551): #10 pc 0001563a /system/lib/libdbus.so
I/DEBUG ( 551): #11 pc 0000ead2 /system/lib/libdbus.so
I/DEBUG ( 551): #12 pc 0000ec1c /system/lib/libdbus.so
I/DEBUG ( 551): #13 pc 000005b4 /data/data/com.MultPkg/
lib/libMult.so
I/DEBUG ( 551): #14 pc 0000e3b4 /system/lib/libdvm.so
I/DEBUG ( 551): #15 pc 00040a8a /system/lib/libdvm.so
I/DEBUG ( 551): #16 pc 00013118 /system/lib/libdvm.so
I/DEBUG ( 551): #17 pc 00017b1c /system/lib/libdvm.so
I/DEBUG ( 551): #18 pc 00017560 /system/lib/libdvm.so
I/DEBUG ( 551): #19 pc 00052268 /system/lib/libdvm.so
I/DEBUG ( 551): #20 pc 000596ee /system/lib/libdvm.so
I/DEBUG ( 551): #21 pc 00013118 /system/lib/libdvm.so
I/DEBUG ( 551): #22 pc 00017b1c /system/lib/libdvm.so
I/DEBUG ( 551): #23 pc 00017560 /system/lib/libdvm.so
I/DEBUG ( 551): #24 pc 000520ec /system/lib/libdvm.so
I/DEBUG ( 551): #25 pc 0003f0f8 /system/lib/libdvm.so
I/DEBUG ( 551): #26 pc 00031ac2 /system/lib/libdvm.so
I/DEBUG ( 551): #27 pc 00028280 /system/lib/
libandroid_runtime.so
I/DEBUG ( 551): #28 pc 00028d7e /system/lib/
libandroid_runtime.so
I/DEBUG ( 551): #29 pc 00008bf2 /system/bin/app_process
I/DEBUG ( 551): #30 pc 0001fd22 /system/lib/libc.so
I/DEBUG ( 551): #31 pc 0000bcb2 /system/lib/libc.so
I/DEBUG ( 551): stack:
I/DEBUG ( 551): be9ab288 afe39f90
I/DEBUG ( 551): be9ab28c afe148a5 /system/lib/libc.so
I/DEBUG ( 551): be9ab290 afe39f90
I/DEBUG ( 551): be9ab294 afe39fe4
I/DEBUG ( 551): be9ab298 00000000
I/DEBUG ( 551): be9ab29c afe13e4d /system/lib/libc.so
I/DEBUG ( 551): be9ab2a0 ae843e70 /system/lib/libdbus.so
I/DEBUG ( 551): be9ab2a4 d1492754
I/DEBUG ( 551): be9ab2a8 be9ab320 [stack]
I/DEBUG ( 551): be9ab2ac ffff6128
I/DEBUG ( 551): be9ab2b0 afe2fef8 /system/lib/libc.so
I/DEBUG ( 551): be9ab2b4 afe39dd0
I/DEBUG ( 551): be9ab2b8 be9ab360 [stack]
I/DEBUG ( 551): be9ab2bc afe10663 /system/lib/libc.so
I/DEBUG ( 551): be9ab2c0 df002777
I/DEBUG ( 551): be9ab2c4 e3a070ad
I/DEBUG ( 551): #00 be9ab2c8 afe39f90
I/DEBUG ( 551): be9ab2cc ae84965c
I/DEBUG ( 551): be9ab2d0 be9ab360 [stack]
I/DEBUG ( 551): be9ab2d4 afe17b57 /system/lib/libc.so
I/DEBUG ( 551): be9ab2d8 ae843e70 /system/lib/libdbus.so
I/DEBUG ( 551): be9ab2dc fffffbdf
I/DEBUG ( 551): be9ab2e0 ae8493b4
I/DEBUG ( 551): be9ab2e4 afe39f90
I/DEBUG ( 551): be9ab2e8 ae84965c
I/DEBUG ( 551): be9ab2ec ae832a47 /system/lib/libdbus.so
I/DEBUG ( 551): #01 be9ab2f0 ae8493b4
I/DEBUG ( 551): be9ab2f4 ae817ced /system/lib/libdbus.so
I/ActivityManager( 578): Process com.MultPkg (pid 1392) has died.
D/Zygote ( 553): Process 1392 terminated by signal (11)
can anyone tell me whats going wrong ,why its not able to connect to
the Bus.i am including libdus.so shared library in the makefile,so
there shouldn't be any problem in acessing the DBus methods like
dbus_bus_get(DBUS_BUS_SESSION,&error).
pleas help me out,this has consumed lot of my time.
thanks
siva
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