implement reading from dev-you-random for datagen.

Signed-off-by: Gediminas Jakutis <gediminas@varciai.lt>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/defs.h b/src/defs.h
new file mode 100644
index 0000000..b06e181
--- /dev/null
+++ b/src/defs.h
@@ -0,0 +1,46 @@
+#ifndef ALGOS_DEFS_H_INCLUDED
+#define ALGOS_DEFS_H_INCLUDED
+
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+/* for array implementation */
+struct entry {
+	uint64_t val;
+};
+
+/* for linked list implementation */
+struct entry_l {
+	struct entry;
+	uint32_t next; /* """pointer""" to the next element. */
+	uint32_t prev; /* """pointer""" to the previous element. */
+};
+
+enum opmode {
+	mode_normal,
+	mode_fetch,
+	mode_generate
+};
+
+struct stream {
+	size_t n;
+	ssize_t prev_idx;
+	int fd;
+	int out;
+	char *name;
+};
+
+struct settings {
+	size_t ss;
+	size_t to;
+	size_t stride;
+	char *filein;
+	char *fileout;
+	unsigned int flags;
+	enum opmode opmode;
+	int (*get)(struct stream, size_t, struct entry_l *, int);
+	int (*put)(struct stream, size_t, struct entry_l *, int);
+};
+
+#endif /* ALGOS_DEFS_H_INCLUDED */