Adding upstream version 16.2.upstream/16.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 70 insertions, 0 deletions

diff --git a/src/pl/plpython/plpy_procedure.h b/src/pl/plpython/plpy_procedure.h
new file mode 100644
index 0000000..8968b5c
--- /dev/null
+++ b/src/pl/plpython/plpy_procedure.h
@@ -0,0 +1,70 @@
+/*
+ * src/pl/plpython/plpy_procedure.h
+ */
+
+#ifndef PLPY_PROCEDURE_H
+#define PLPY_PROCEDURE_H
+
+#include "plpy_typeio.h"
+
+
+extern void init_procedure_caches(void);
+
+
+/* saved arguments for outer recursion level or set-returning function */
+typedef struct PLySavedArgs
+{
+	struct PLySavedArgs *next;	/* linked-list pointer */
+	PyObject   *args;			/* "args" element of globals dict */
+	int			nargs;			/* length of namedargs array */
+	PyObject   *namedargs[FLEXIBLE_ARRAY_MEMBER];	/* named args */
+} PLySavedArgs;
+
+/* cached procedure data */
+typedef struct PLyProcedure
+{
+	MemoryContext mcxt;			/* context holding this PLyProcedure and its
+								 * subsidiary data */
+	char	   *proname;		/* SQL name of procedure */
+	char	   *pyname;			/* Python name of procedure */
+	TransactionId fn_xmin;
+	ItemPointerData fn_tid;
+	bool		fn_readonly;
+	bool		is_setof;		/* true, if function returns result set */
+	bool		is_procedure;
+	PLyObToDatum result;		/* Function result output conversion info */
+	PLyDatumToOb result_in;		/* For converting input tuples in a trigger */
+	char	   *src;			/* textual procedure code, after mangling */
+	char	  **argnames;		/* Argument names */
+	PLyDatumToOb *args;			/* Argument input conversion info */
+	int			nargs;			/* Number of elements in above arrays */
+	Oid			langid;			/* OID of plpython pg_language entry */
+	List	   *trftypes;		/* OID list of transform types */
+	PyObject   *code;			/* compiled procedure code */
+	PyObject   *statics;		/* data saved across calls, local scope */
+	PyObject   *globals;		/* data saved across calls, global scope */
+	long		calldepth;		/* depth of recursive calls of function */
+	PLySavedArgs *argstack;		/* stack of outer-level call arguments */
+} PLyProcedure;
+
+/* the procedure cache key */
+typedef struct PLyProcedureKey
+{
+	Oid			fn_oid;			/* function OID */
+	Oid			fn_rel;			/* triggered-on relation or InvalidOid */
+} PLyProcedureKey;
+
+/* the procedure cache entry */
+typedef struct PLyProcedureEntry
+{
+	PLyProcedureKey key;		/* hash key */
+	PLyProcedure *proc;
+} PLyProcedureEntry;
+
+/* PLyProcedure manipulation */
+extern char *PLy_procedure_name(PLyProcedure *proc);
+extern PLyProcedure *PLy_procedure_get(Oid fn_oid, Oid fn_rel, bool is_trigger);
+extern void PLy_procedure_compile(PLyProcedure *proc, const char *src);
+extern void PLy_procedure_delete(PLyProcedure *proc);
+
+#endif							/* PLPY_PROCEDURE_H */