1 files changed, 57 insertions, 0 deletions
diff --git a/src/random/webid-oidc/random.h b/src/random/webid-oidc/random.h
new file mode 100644
index 0000000..ae1adfc
--- /dev/null
+++ b/src/random/webid-oidc/random.h
@@ -0,0 +1,57 @@
+#ifndef H_RANDOM_INCLUDED
+#define H_RANDOM_INCLUDED
+
+struct webid_oidc_random_context;
+typedef struct webid_oidc_random_context webid_oidc_random_context;
+
+/* These functions allocate data, they are not reentrant. */
+struct webid_oidc_random_context *webid_oidc_random_context_alloc (void);
+void webid_oidc_random_context_free (struct webid_oidc_random_context *ctx);
+
+enum webid_oidc_random_context_state
+{
+  WEBID_OIDC_RANDOM_CONTEXT_READY = 0,
+  WEBID_OIDC_RANDOM_CONTEXT_WAIT_LOCK_FILE,
+  WEBID_OIDC_RANDOM_CONTEXT_WAIT_FILE_READ,
+  WEBID_OIDC_RANDOM_CONTEXT_WAIT_FILE_WRITE,
+  WEBID_OIDC_RANDOM_CONTEXT_WAIT_UNLOCK_FILE
+};
+
+typedef enum webid_oidc_random_context_state webid_oidc_random_context_state;
+
+enum webid_oidc_random_context_state
+webid_oidc_random_context_get_state (const struct webid_oidc_random_context
+				     *ctx);
+int webid_oidc_random_context_get_wait_bytes (const struct
+					      webid_oidc_random_context *ctx,
+					      size_t max, size_t start,
+					      uint8_t * bytes,
+					      size_t *n_bytes);
+int webid_oidc_random_context_ok (struct webid_oidc_random_context *ctx);
+int webid_oidc_random_context_bytes (struct webid_oidc_random_context *ctx,
+				     size_t n_bytes, const uint8_t * bytes);
+
+enum webid_oidc_random_context_spawn_flags
+{
+  WEBID_OIDC_RANDOM_CONTEXT_THREAD_UNSAFE = 1
+};
+typedef enum webid_oidc_random_context_spawn_flags
+  webid_oidc_random_context_spawn_flags;
+
+int webid_oidc_random_context_spawn (struct webid_oidc_random_context *parent,
+				     struct webid_oidc_random_context *child,
+				     enum
+				     webid_oidc_random_context_spawn_flags
+				     flags);
+
+int webid_oidc_random_context_get (struct webid_oidc_random_context *ctx,
+				   size_t request_size, uint8_t * data);
+
+/* These functions set up and use a global state. Neither are
+   reentrant. */
+void webid_oidc_random_init (void);
+
+/* This function is thread-safe. */
+void webid_oidc_random (size_t request_size, uint8_t * data);
+
+#endif /* not H_RANDOM_INCLUDED */