driver: implemented the internal tpax_queue_item_full_path().

1 files changed, 35 insertions, 0 deletions

diff --git a/src/logic/tpax_queue_vector.c b/src/logic/tpax_queue_vector.c
index 092f39f..82930b1 100644
--- a/src/logic/tpax_queue_vector.c
+++ b/src/logic/tpax_queue_vector.c
@@ -12,6 +12,41 @@
 #include "tpax_errinfo_impl.h"
 #include "tpax_visibility_impl.h"
 
+#define TPAX_MAX_DEPTH 512
+
+tpax_hidden const char * tpax_queue_item_full_path(
+	const struct tpax_driver_ctx *  dctx,
+	const struct tpax_dirent *      cdent)
+{
+	char *                          ch;
+	char *                          pathbuf;
+	const struct tpax_dirent *      pparent;
+	const struct tpax_dirent **     pdirent;
+	const struct tpax_dirent *      dirstck[TPAX_MAX_DEPTH];
+
+	if (cdent->depth >= TPAX_MAX_DEPTH)
+		return 0;
+
+	ch = pathbuf = (tpax_get_driver_ictx(dctx))->dirbuff;
+
+	for (pparent=cdent,pdirent=dirstck; pparent; pparent=pparent->parent)
+		*pdirent++ = pparent;
+
+	*pdirent-- = 0;
+
+	if (pdirent[0]->prefix)
+		ch += sprintf(ch,"%s",pdirent[0]->prefix);
+
+	for (; pdirent > dirstck; ) {
+		ch += sprintf(ch,"%s/",pdirent[0]->dirent.d_name);
+		pdirent--;
+	}
+
+	sprintf(ch,"%s",pdirent[0]->dirent.d_name);
+
+	return pathbuf;
+}
+
 tpax_hidden int tpax_update_queue_vector(const struct tpax_driver_ctx * dctx)
 {
 	uintptr_t                       addr;