Adding upstream version 15.4.upstream/15.4upstream

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

1 files changed, 31 insertions, 0 deletions

diff --git a/src/pl/plpython/plpy_main.h b/src/pl/plpython/plpy_main.h
new file mode 100644
index 0000000..e8c97c2
--- /dev/null
+++ b/src/pl/plpython/plpy_main.h
@@ -0,0 +1,31 @@
+/*
+ * src/pl/plpython/plpy_main.h
+ */
+
+#ifndef PLPY_MAIN_H
+#define PLPY_MAIN_H
+
+#include "plpy_procedure.h"
+
+/* the interpreter's globals dict */
+extern PyObject *PLy_interp_globals;
+
+/*
+ * A stack of PL/Python execution contexts. Each time user-defined Python code
+ * is called, an execution context is created and put on the stack. After the
+ * Python code returns, the context is destroyed.
+ */
+typedef struct PLyExecutionContext
+{
+	PLyProcedure *curr_proc;	/* the currently executing procedure */
+	MemoryContext scratch_ctx;	/* a context for things like type I/O */
+	struct PLyExecutionContext *next;	/* previous stack level */
+} PLyExecutionContext;
+
+/* Get the current execution context */
+extern PLyExecutionContext *PLy_current_execution_context(void);
+
+/* Get the scratch memory context for specified execution context */
+extern MemoryContext PLy_get_scratch_context(PLyExecutionContext *context);
+
+#endif							/* PLPY_MAIN_H */