As I said in my original message "I am trying to understand how lock is implemented in sqlite3".
On 7/2/19, Keith Medcalf <kmedc...@dessus.com> wrote: > > On Tuesday, 2 July, 2019 13:26, Peng Yu <pengyu...@gmail.com>: > >>I not sure how to use os_unix.c. Are there any easy to follow >>examples in python? > > YOU do not use os_unix.c. Perhaps you can state what it is that you are > trying to accomplish. > > For example: > > I would like to know how I drive a car to the supermarket. (Explaining how > electric windows function or are designed is neither helpful nor conducive > to a correct answer). > > I would like to know how to write a virus that co-operates with SQLite3 > advisory locking on Unix type systems in order to enable the virus to make > changes to SQLite3 databases without anyones knowledge and in compliance > with the current system of advisory locks, such that my changes cannot be > detected by creating anomolous behaviour in applications which actually use > the SQLite3 library, and will not be accidentally overwritten by one of > those non-malicious applications. Since I want to keep the size of my virus > under 8K I cannot actually use the SQLite3 database engine in my malicious > software. > > etc. > > -- > The fact that there's a Highway to Hell but only a Stairway to Heaven says a > lot about anticipated traffic volume. > > > > > _______________________________________________ > sqlite-users mailing list > sqlite-users@mailinglists.sqlite.org > http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users > -- Regards, Peng _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
