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[Opensync-users] need help
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From: Danny B. <dan...@sc...> - 2005-09-08 20:43:46
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I'm a bit lost, I need help.
I am working on the SynCE file synchronisation. The directories I'm
syncing in this example are :
dell: {80} l /tmp/onlyfile/
total 1652
-rw-rw-r-- 1 danny backx 50089 Sep 3 07:47 \My Documents\foto
\inge.gif
-rw-rw-r-- 1 danny backx 58605 Sep 3 07:47 \My Documents\foto
\kristof.gif
-rw-rw-r-- 1 danny backx 3694 Sep 3 07:47 \My Documents\foto
\tux068d.gif
-rw-r--r-- 1 danny backx 1558120 Sep 1 21:16 wife_call.wmv
dell: {81} pls foto/
AC-------- 58605 Sun 10 Jul 2005 10:46:26 CEST kristof.gif
AC-------- 50089 Sun 10 Jul 2005 10:46:26 CEST inge.gif
AC-------- 3694 Sun 10 Jul 2005 10:44:56 CEST tux068d.gif
The contents of /tmp/onlyfile are mostly there by syncing, only the WMV
file was put there by other means.
New syncs now fail as shown here :
msynctool --sync f
Synchronizing group "f"=20
The previous synchronization was unlean. Slow-syncing
Member 1 of type file-sync just connected
Member 2 of type synce-plugin just connected
All clients connected or error
FilesReportFileChange(\My Documents\foto\kristof.gif)
Received a entry \My Documents\foto\tux068d.gif without data from member
1. Changetype 1
FilesReportFileChange(\My Documents\foto\inge.gif)
Received a entry \My Documents\foto\kristof.gif without data from member
2. Changetype 1
FilesReportFileChange(\My Documents\foto\tux068d.gif)
Received a entry \My Documents\foto\kristof.gif without data from member
1. Changetype 1
Received a entry \My Documents\foto\inge.gif without data from member 2.
Changetype 1
Received a entry \My Documents\foto\inge.gif without data from member 1.
Changetype 1
Received a entry wife_call.wmv without data from member 1. Changetype 1
Received a entry \My Documents\foto\tux068d.gif without data from member
2. Changetype 1
Member 1 of type file-sync just sent all changes
Received a entry \My Documents\foto\tux068d.gif with data of size 24
from member 1. Changetype 1
Received a entry \My Documents\foto\kristof.gif with data of size 24
from member 1. Changetype 1
Received a entry \My Documents\foto\inge.gif with data of size 24 from
member 1. Changetype 1
Received a entry wife_call.wmv with data of size 24 from member 1.
Changetype 1
Member 2 of type synce-plugin just sent all changes
All clients sent changes or error
Received a entry \My Documents\foto\kristof.gif with data of size 4 from
member 2. Changetype 1
Received a entry \My Documents\foto\inge.gif with data of size 4 from
member 2. Changetype 1
Segmentation fault (core dumped)
And the reason of the crash is :
#0 0xb7bdd923 in wstr_from_x (inbuf=3D0x0, code=3D0x806cd98 "ISO-8859-1")
at wstr.c:133
133 size_t length =3D strlen(inbuf);
(gdb) where
#0 0xb7bdd923 in wstr_from_x (inbuf=3D0x0, code=3D0x806cd98 "ISO-8859-1")
at wstr.c:133
#1 0xb7bdda8f in wstr_from_current (inbuf=3D0x0) at wstr.c:192
#2 0xb75e6bf7 in file_get_data (ctx=3D0x80755e0, change=3D0x805fac0) at
synce_file.c:389
#3 0xb7f0a049 in osync_member_get_change_data (member=3D0x805e0f8,
change=3D0x805fac0,=20
function=3D0xb7f1ebc0 <message_callback>, user_data=3D0x80786b8) at
opensync_member.c:1093
#4 0xb7f1ee70 in client_message_handler ()
from /usr/local/lib/libosengine.so.0
#5 0xb7f1e719 in _queue_dispatch ()
from /usr/local/lib/libosengine.so.0
#6 0xb7f4f0c4 in g_main_dispatch ()
from /usr/local/lib/libglib-2.0.so.0
#7 0xb7f4ff1d in g_main_context_dispatch ()
from /usr/local/lib/libglib-2.0.so.0
#8 0xb7f502df in g_main_context_iterate ()
from /usr/local/lib/libglib-2.0.so.0
#9 0xb7f508a3 in g_main_loop_run ()
from /usr/local/lib/libglib-2.0.so.0
#10 0xb7f68bea in g_thread_create_proxy ()
from /usr/local/lib/libglib-2.0.so.0
#11 0xb7d553b0 in start_thread () from /lib/tls/libpthread.so.0
#12 0xb7cb826e in clone () from /lib/tls/libc.so.6
(gdb) up
#1 0xb7bdda8f in wstr_from_current (inbuf=3D0x0) at wstr.c:192
192 return wstr_from_x(inbuf, get_current_codeset());
(gdb)=20
#2 0xb75e6bf7 in file_get_data (ctx=3D0x80755e0, change=3D0x805fac0) at
synce_file.c:389
389 wfn =3D wstr_from_current(ff->data);
(gdb) p *ff
$1 =3D {mode =3D 0, userid =3D 0, groupid =3D 0, last_mod =3D 0, data =3D 0=
x0, size
=3D 0}
This is in the file_get_data() function I wrote :
extern void file_get_data(OSyncContext *ctx, OSyncChange *change)
{
synce_plugin_environment *env;
fileFormat *ff;
HANDLE h;
size_t rsz;
WCHAR *wfn;
int r;
osync_debug("SynCE-File", 4, "start : %s", __func__);
env =3D (synce_plugin_environment
*)osync_context_get_plugin_data(ctx);
ff =3D (fileFormat *)osync_change_get_data(change);
/*
* There appears to be a trick being used here.
*
* First report some stuff, use the data field to pass random
data (e.g. the file
* name) to ourselves.
* Then, in the get_data() call, read that data and replace it
with the file content.
*/
wfn =3D wstr_from_current(ff->data);
/* Read the file through SynCE */
h =3D CeCreateFile(wfn, GENERIC_READ, 0, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, 0);
free(ff->data);
ff->data =3D malloc(ff->size);
r =3D CeReadFile(h, ff->data, ff->size, &rsz, NULL);
if (r =3D=3D 0) {
/* Error */
DWORD e =3D CeGetLastError();
char *s =3D synce_strerror(e);
osync_context_report_error(ctx, 1, "Error from
CeReadFile (%s)", s);
CeCloseHandle(h);
return;
}
/* Send its contents */
osync_change_set_data(change, (char *)ff, sizeof(ff), TRUE);
CeCloseHandle(h);
wstr_free_string(wfn);
osync_context_report_success(ctx);
osync_debug("SynCE-File", 4, "end : %s", __func__);
}
Can anyone give me a clue why this function is being called with
arguments filled with NULLs ?
Thanks,
Danny
--=20
Danny Backx ; danny.backx - at - scarlet.be ; http://danny.backx.info
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