On Apr 22, 5:41 pm, Mark Murphy <mmur...@commonsware.com> wrote: > > Iam Writing an Application in which i need to put all the system.out or > > log.e logs into a file which will be generated in the phone system.
> The following snippet was recently added to AndroidSnippets.org: > > http://www.androidsnippets.org/snippets/35/ > > I have not tried the technique demonstrated there, and it scares me > slightly, but it is probably worth trying. You can also just pop open the /dev/log entry (assuming appropriate permissions) and read it directly. The format is laid out in core/ include/cutils/logger.h: struct logger_entry { uint16_t len; /* length of the payload */ uint16_t __pad; /* no matter what, we get 2 bytes of padding */ int32_t pid; /* generating process's pid */ int32_t tid; /* generating process's tid */ int32_t sec; /* seconds since Epoch */ int32_t nsec; /* nanoseconds */ char msg[0]; /* the entry's payload */ }; The "msg" field has a one-byte priority, followed by the null- terminated tag, followed by the message (which I don't think is null terminated -- "len - taglen - 1" is the message body length). This sort of manipulation is pretty awkward in Java, and you still have to format it "nicely". But once you've got that written you can apply whatever layout / filter rules you want. If you only need System.out and System.err for *your* process, it's easy enough to redirect them (and in fact this is what the Android framework does to put them in the log file instead of stdout/stderr). All three logs (/dev/log/{main,radio,events}) use the layout shown above, but the contents of "msg" may vary ("events" is completely different). --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Beginners" group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~----------~----~----~----~------~----~------~--~---
