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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2024-03-18 11:35:08 +0200 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2024-03-18 11:35:30 +0200 |
| commit | aafc05de1bf5c0324cb5e690c6742118c1ac4af6 (patch) | |
| tree | c750628b17b1175e2ec4bb420275d3b6f2bced6b /src/backend/postmaster/startup.c | |
| parent | f1baed18bc3db50c72bfb00b6247b47689158445 (diff) | |
| download | postgresql-aafc05de1bf5c0324cb5e690c6742118c1ac4af6.tar.gz postgresql-aafc05de1bf5c0324cb5e690c6742118c1ac4af6.zip | |
Refactor postmaster child process launching
Introduce new postmaster_child_launch() function that deals with the
differences in EXEC_BACKEND mode.
Refactor the mechanism of passing information from the parent to child
process. Instead of using different command-line arguments when
launching the child process in EXEC_BACKEND mode, pass a
variable-length blob of startup data along with all the global
variables. The contents of that blob depend on the kind of child
process being launched. In !EXEC_BACKEND mode, we use the same blob,
but it's simply inherited from the parent to child process.
Reviewed-by: Tristan Partin, Andres Freund
Discussion: https://www.postgresql.org/message-id/7a59b073-5b5b-151e-7ed3-8b01ff7ce9ef@iki.fi
Diffstat (limited to 'src/backend/postmaster/startup.c')
| -rw-r--r-- | src/backend/postmaster/startup.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/backend/postmaster/startup.c b/src/backend/postmaster/startup.c index 8b51e45bad0..ef6f98ebcd7 100644 --- a/src/backend/postmaster/startup.c +++ b/src/backend/postmaster/startup.c @@ -24,6 +24,7 @@ #include "access/xlogutils.h" #include "libpq/pqsignal.h" #include "miscadmin.h" +#include "postmaster/auxprocess.h" #include "postmaster/startup.h" #include "storage/ipc.h" #include "storage/pmsignal.h" @@ -212,8 +213,13 @@ StartupProcExit(int code, Datum arg) * ---------------------------------- */ void -StartupProcessMain(void) +StartupProcessMain(char *startup_data, size_t startup_data_len) { + Assert(startup_data_len == 0); + + MyBackendType = B_STARTUP; + AuxiliaryProcessMainCommon(); + /* Arrange to clean up at startup process exit */ on_shmem_exit(StartupProcExit, 0); |