Started working on a seperate pgtypes library. First test work. PLEASE test compilation on iother systems.

src/interfaces/ecpg/ecpglib/extern.h

@@ -0,0 +1,103 @@
+#ifndef _ECPG_LIB_EXTERN_H
+#define _ECPG_LIB_EXTERN_H
+
+#include "postgres_fe.h"
+#include "libpq-fe.h"
+
+/* Here are some methods used by the lib. */
+
+/* Stores the backend error message for client access */
+void set_backend_err(const char *err, int lineon);
+
+/* Store and retrieve the backend error message for client access */
+void set_backend_err(const char *err, int lineon);
+char *ECPGerrmsg(void);
+
+/* Returns a pointer to a string containing a simple type name. */
+void		ECPGadd_mem(void *ptr, int lineno);
+
+bool ECPGget_data(const PGresult *, int, int, int, enum ECPGttype type,
+			 enum ECPGttype, char *, char *, long, long, long, bool);
+struct connection *ECPGget_connection(const char *);
+void		ECPGinit_sqlca(void);
+char	   *ECPGalloc(long, int);
+char	   *ECPGrealloc(void *, long, int);
+void		ECPGfree(void *);
+bool		ECPGinit(const struct connection *, const char *, const int);
+char	   *ECPGstrdup(const char *, int);
+const char *ECPGtype_name(enum ECPGttype);
+unsigned int ECPGDynamicType(Oid);
+void		ECPGfree_auto_mem(void);
+void		ECPGclear_auto_mem(void);
+
+/* A generic varchar type. */
+struct ECPGgeneric_varchar
+{
+	int			len;
+	char		arr[1];
+};
+
+/*
+ * type information cache
+ */
+
+struct ECPGtype_information_cache
+{
+	struct ECPGtype_information_cache *next;
+	int			oid;
+	bool		isarray;
+};
+
+/* structure to store one statement */
+struct statement
+{
+	int			lineno;
+	char	   *command;
+	struct connection *connection;
+	struct variable *inlist;
+	struct variable *outlist;
+};
+
+/* structure to store connections */
+struct connection
+{
+	char	   *name;
+	PGconn	   *connection;
+	bool		committed;
+	int			autocommit;
+	struct ECPGtype_information_cache *cache_head;
+	struct connection *next;
+};
+
+/* structure to store descriptors */
+struct descriptor
+{
+	char	   *name;
+	PGresult   *result;
+	struct descriptor *next;
+};
+
+struct variable
+{
+	enum ECPGttype type;
+	void	   *value;
+	void	   *pointer;
+	long		varcharsize;
+	long		arrsize;
+	long		offset;
+	enum ECPGttype ind_type;
+	void	   *ind_value;
+	void	   *ind_pointer;
+	long		ind_varcharsize;
+	long		ind_arrsize;
+	long		ind_offset;
+	struct variable *next;
+};
+
+PGresult  **
+			ECPGdescriptor_lvalue(int line, const char *descriptor);
+
+bool ECPGstore_result(const PGresult *results, int act_field,
+				 const struct statement * stmt, struct variable * var);
+
+#endif /* _ECPG_LIB_EXTERN_H */