1 files changed, 31 insertions, 0 deletions
diff --git a/Modules/_zstd/zstddict.h b/Modules/_zstd/zstddict.h
new file mode 100644
index 00000000000..e82498f5dd1
--- /dev/null
+++ b/Modules/_zstd/zstddict.h
@@ -0,0 +1,31 @@
+/*
+Low level interface to Meta's zstd library for use in the compression.zstd
+Python module.
+*/
+
+#ifndef ZSTD_DICT_H
+#define ZSTD_DICT_H
+
+#include <stdbool.h>              // bool
+#include <zstd.h>                 // ZSTD_DDict
+
+typedef struct {
+    PyObject_HEAD
+
+    /* Reusable compress/decompress dictionary, they are created once and
+       can be shared by multiple threads concurrently, since its usage is
+       read-only.
+       c_dicts is a dict, int(compressionLevel):PyCapsule(ZSTD_CDict*) */
+    ZSTD_DDict *d_dict;
+    PyObject *c_dicts;
+
+    /* Content of the dictionary, bytes object. */
+    PyObject *dict_content;
+    /* Dictionary id */
+    uint32_t dict_id;
+
+    /* __init__ has been called, 0 or 1. */
+    bool initialized;
+} ZstdDict;
+
+#endif  // !ZSTD_DICT_H