On Tue, Aug 4, 2020 at 7:27 AM Bharath Rupireddy
<bharath.rupireddyforpostgres@gmail.com> wrote:
> I could get these points earlier in my initial analysis. In fact, I
> could figure out the flow on Windows, how these parameters are shared
> using a shared file(CreateFileMapping(), MapViewOfFile()), and the
> shared file name being passed as an argv[2] to the child process, and
> the way child process uses this file name to read the backend
> parameters in read_backend_variables().
Doesn't that happen even if the background worker isn't declared to
use BGWORKER_SHMEM_ACCESS? See StartBackgroundWorker(): IIUC, we start
with shared memory access, then afterwards detach.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
