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authorAndrew Dunstan <andrew@dunslane.net>2017-11-15 10:16:34 -0500
committerAndrew Dunstan <andrew@dunslane.net>2017-11-15 10:16:34 -0500
commitcd8ce3a22c0b48d32ffe6543837ba3bb647ac2b2 (patch)
treea6f39aee1d21d35a7f1902c7714777311687344b /src/backend/tcop/postgres.c
parentebc189e12259cc28b9a09db000626fea1e2a3ffa (diff)
downloadpostgresql-cd8ce3a22c0b48d32ffe6543837ba3bb647ac2b2.tar.gz
postgresql-cd8ce3a22c0b48d32ffe6543837ba3bb647ac2b2.zip
Add hooks for session start and session end
These hooks can be used in loadable modules. A simple test module is included. Discussion: https://postgr.es/m/20170720204733.40f2b7eb.nagata@sraoss.co.jp Fabrízio de Royes Mello and Yugo Nagata Reviewed by Michael Paquier and Aleksandr Parfenov
Diffstat (limited to 'src/backend/tcop/postgres.c')
-rw-r--r--src/backend/tcop/postgres.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index 05c5c194ec6..d3156ad49ef 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -169,6 +169,9 @@ static ProcSignalReason RecoveryConflictReason;
static MemoryContext row_description_context = NULL;
static StringInfoData row_description_buf;
+/* Hook for plugins to get control at start of session */
+session_start_hook_type session_start_hook = NULL;
+
/* ----------------------------------------------------------------
* decls for routines only used in this file
* ----------------------------------------------------------------
@@ -3857,6 +3860,9 @@ PostgresMain(int argc, char *argv[],
if (!IsUnderPostmaster)
PgStartTime = GetCurrentTimestamp();
+ if (session_start_hook)
+ (*session_start_hook) ();
+
/*
* POSTGRES main processing loop begins here
*