driver: created program skeleton.

1 files changed, 127 insertions, 0 deletions

diff --git a/src/internal/treebnf_driver_impl.h b/src/internal/treebnf_driver_impl.h
new file mode 100644
index 0000000..7fcdd43
--- /dev/null
+++ b/src/internal/treebnf_driver_impl.h
@@ -0,0 +1,127 @@
+/**************************************************************/
+/*  treebnf: a tree oriented bnf library                      */
+/*  Copyright (C) 2024  SysDeer Technologies, LLC             */
+/*  Released under GPLv2 and GPLv3; see COPYING.TREEBNF.      */
+/**************************************************************/
+
+#ifndef TREEBNF_DRIVER_IMPL_H
+#define TREEBNF_DRIVER_IMPL_H
+
+#include <stdint.h>
+#include <dirent.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <treebnf/treebnf.h>
+#include "argv/argv.h"
+
+#define TBNF_OPTV_ELEMENTS 128
+
+extern const struct argv_option tbnf_default_options[];
+
+enum app_tags {
+	TAG_HELP,
+	TAG_VERSION,
+};
+
+struct tbnf_driver_ctx_impl {
+	struct tbnf_common_ctx        cctx;
+	struct tbnf_driver_ctx        ctx;
+	struct tbnf_fd_ctx            fdctx;
+	int                           fdtmpin;
+	const struct tbnf_unit_ctx *  euctx;
+	const char *                  eunit;
+	struct tbnf_error_info **     errinfp;
+	struct tbnf_error_info **     erricap;
+	struct tbnf_error_info *      erriptr[64];
+	struct tbnf_error_info        erribuf[64];
+};
+
+struct tbnf_unit_ctx_impl {
+	const char *		path;
+	struct tbnf_unit_ctx	uctx;
+	struct tbnf_raw_input   map;
+	struct stat		st;
+};
+
+
+static inline struct tbnf_driver_ctx_impl * tbnf_get_driver_ictx(
+	const struct tbnf_driver_ctx * dctx)
+{
+        uintptr_t addr;
+
+        if (dctx) {
+                addr = (uintptr_t)dctx - offsetof(struct tbnf_driver_ctx_impl,ctx);
+                return (struct tbnf_driver_ctx_impl *)addr;
+        }
+
+        return 0;
+}
+
+static inline struct tbnf_unit_ctx_impl * tbnf_get_unit_ictx(
+	const struct tbnf_unit_ctx * uctx)
+{
+	struct tbnf_unit_ctx_impl *	ictx;
+	uintptr_t			addr;
+
+	addr = (uintptr_t)uctx - offsetof(struct tbnf_unit_ctx_impl,uctx);
+	ictx = (struct tbnf_unit_ctx_impl *)addr;
+	return ictx;
+}
+
+static inline void tbnf_driver_set_ectx(
+	const struct tbnf_driver_ctx * dctx,
+	const struct tbnf_unit_ctx *   uctx,
+	const char *                 unit)
+{
+	struct tbnf_driver_ctx_impl *  ictx;
+
+	ictx        = tbnf_get_driver_ictx(dctx);
+	ictx->euctx = uctx;
+	ictx->eunit = unit;
+}
+
+static inline int tbnf_driver_fdin(const struct tbnf_driver_ctx * dctx)
+{
+	struct tbnf_fd_ctx fdctx;
+	tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fdin;
+}
+
+static inline int tbnf_driver_fdout(const struct tbnf_driver_ctx * dctx)
+{
+	struct tbnf_fd_ctx fdctx;
+	tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fdout;
+}
+
+static inline int tbnf_driver_fderr(const struct tbnf_driver_ctx * dctx)
+{
+	struct tbnf_fd_ctx fdctx;
+	tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fderr;
+}
+
+static inline int tbnf_driver_fdlog(const struct tbnf_driver_ctx * dctx)
+{
+	struct tbnf_fd_ctx fdctx;
+	tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fdlog;
+}
+
+static inline int tbnf_driver_fdcwd(const struct tbnf_driver_ctx * dctx)
+{
+	struct tbnf_fd_ctx fdctx;
+	tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fdcwd;
+}
+
+static inline int tbnf_driver_fddst(const struct tbnf_driver_ctx * dctx)
+{
+	struct tbnf_fd_ctx fdctx;
+	tbnf_lib_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fddst;
+}
+
+#endif