On 2020-Mar-26, Mike Palmiotto wrote:

Regarding 0001:

> diff --git a/src/backend/postmaster/subprocess.c 
> b/src/backend/postmaster/subprocess.c
> new file mode 100644
> index 0000000000..3e7a45bf10
> --- /dev/null
> +++ b/src/backend/postmaster/subprocess.c
> @@ -0,0 +1,62 @@
> +/*-------------------------------------------------------------------------
> + *
> + * subprocess.c
> + *
> + * Copyright (c) 2004-2020, PostgreSQL Global Development Group
> + *
> + *
> + * IDENTIFICATION
> + *     src/backend/postmaster/syslogger.c

Wrong file identification.

> +static PgSubprocess process_types[] = {
> +     {
> +             .desc = "checker",
> +             .entrypoint = CheckerModeMain
> +     },
> +     {
...

This array has to match the order in subprocess.h:

> +typedef enum
> +{
> +     NoProcessType = -1,
> +     CheckerType = 0,
> +     BootstrapType,
> +     StartupType,
> +     BgWriterType,
> +     CheckpointerType,
> +     WalWriterType,
> +     WalReceiverType,        /* end of Auxiliary Process Forks */
> +
> +     NUMSUBPROCESSTYPES                      /* Must be last! */
> +} SubprocessType;

This sort of thing is messy and unfriendly to maintain.  I suggest we
use the same trick as in cmdtaglist.h and rmgrlist.h; see commits
2f9661311b83 and 5a1cd89f8f4a for examples.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


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