1 files changed, 112 insertions, 0 deletions
diff --git a/src/internal/tpax_driver_impl.h b/src/internal/tpax_driver_impl.h
new file mode 100644
index 0000000..49dea15
--- /dev/null
+++ b/src/internal/tpax_driver_impl.h
@@ -0,0 +1,112 @@
+/******************************************************/
+/*  tpax: a topological pax implementation            */
+/*  Copyright (C) 2020  Z. Gilboa                     */
+/*  Released under GPLv2 and GPLv3; see COPYING.TPAX. */
+/******************************************************/
+
+#ifndef TPAX_DRIVER_IMPL_H
+#define TPAX_DRIVER_IMPL_H
+
+#include <stdint.h>
+#include <stdio.h>
+#include <sys/types.h>
+
+#include <tpax/tpax.h>
+#include "tpax_dprintf_impl.h"
+#include "argv/argv.h"
+
+#define TPAX_OPTV_ELEMENTS 64
+
+extern const struct argv_option tpax_default_options[];
+
+enum app_tags {
+	TAG_HELP,
+	TAG_VERSION,
+};
+
+struct tpax_driver_ctx_impl {
+	struct tpax_common_ctx        cctx;
+	struct tpax_driver_ctx        ctx;
+	struct tpax_fd_ctx            fdctx;
+	const struct tpax_unit_ctx *  euctx;
+	const char *                  eunit;
+	struct tpax_error_info **     errinfp;
+	struct tpax_error_info **     erricap;
+	struct tpax_error_info *      erriptr[64];
+	struct tpax_error_info        erribuf[64];
+};
+
+struct tpax_unit_ctx_impl {
+	const char *		path;
+	struct tpax_unit_ctx	uctx;
+};
+
+
+static inline struct tpax_driver_ctx_impl * tpax_get_driver_ictx(
+	const struct tpax_driver_ctx * dctx)
+{
+        uintptr_t addr;
+
+        if (dctx) {
+                addr = (uintptr_t)dctx - offsetof(struct tpax_driver_ctx_impl,ctx);
+                return (struct tpax_driver_ctx_impl *)addr;
+        }
+
+        return 0;
+}
+
+static inline void tpax_driver_set_ectx(
+	const struct tpax_driver_ctx * dctx,
+	const struct tpax_unit_ctx *   uctx,
+	const char *                 unit)
+{
+	struct tpax_driver_ctx_impl *  ictx;
+
+	ictx        = tpax_get_driver_ictx(dctx);
+	ictx->euctx = uctx;
+	ictx->eunit = unit;
+}
+
+static inline int tpax_driver_fdin(const struct tpax_driver_ctx * dctx)
+{
+	struct tpax_fd_ctx fdctx;
+	tpax_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fdin;
+}
+
+static inline int tpax_driver_fdout(const struct tpax_driver_ctx * dctx)
+{
+	struct tpax_fd_ctx fdctx;
+	tpax_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fdout;
+}
+
+static inline int tpax_driver_fderr(const struct tpax_driver_ctx * dctx)
+{
+	struct tpax_fd_ctx fdctx;
+	tpax_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fderr;
+}
+
+static inline int tpax_driver_fdlog(const struct tpax_driver_ctx * dctx)
+{
+	struct tpax_fd_ctx fdctx;
+	tpax_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fdlog;
+}
+
+static inline int tpax_driver_fdcwd(const struct tpax_driver_ctx * dctx)
+{
+	struct tpax_fd_ctx fdctx;
+	tpax_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fdcwd;
+}
+
+static inline int tpax_driver_fddst(const struct tpax_driver_ctx * dctx)
+{
+	struct tpax_fd_ctx fdctx;
+	tpax_get_driver_fdctx(dctx,&fdctx);
+	return fdctx.fddst;
+}
+
+#endif