On 10/21/2011 12:17 PM, Junping Zhang wrote:
Hi, there,
In my code, I call g_mime_init() at the start of the
process, and then spawn multiple threads to do the parsing
with code like this
fd = open(...)
gm_stream = g_mime_stream_fs_new(fd);
gm_parser = g_mime_parser_new_with_stream(gm_stream);
g_object_unref(gm_stream);
gm_msg = g_mime_parser_construct_message(gm_parser);
g_object_unref(gm_parser);
Once in a while I got
(process:2547): GLib-GObject-WARNING **: cannot register
existing type `GMimeFilterBasic'
I realized that there is a race condition in
g_mime_stream_fs_get_type() which is called from
g_mime_stream_fs_new(). If both threads got there at the same
time and both got type 0, we would get the above warning. I
believe this part of the code is the same in 2.4 through
current 2.6.
Yes, it likely is. And you are right about what is happening.
I thought g_mime_init() should initialize this type by
calling g_mime_stream_fs_get_type() as it does for some other
types, and I wonder what is the reason not to include some of
the types and what should be the recommended calling sequence
here.
No reason but lazyness, I'm afraid. I'll fix this up for 2.4.27 and
2.6.1.
Jeff
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