1 files changed, 86 insertions, 0 deletions
diff --git a/xpcom/typelib/xpt/xpt_xdr.h b/xpcom/typelib/xpt/xpt_xdr.h
new file mode 100644
index 000000000..7bf23aa40
--- /dev/null
+++ b/xpcom/typelib/xpt/xpt_xdr.h
@@ -0,0 +1,86 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Basic APIs for streaming typelib structures from disk.
+ */
+
+#ifndef __xpt_xdr_h__
+#define __xpt_xdr_h__
+
+#include "xpt_struct.h"
+#include "mozilla/NotNull.h"
+
+using mozilla::NotNull;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct XPTState         XPTState;
+typedef struct XPTCursor        XPTCursor;
+
+extern XPT_PUBLIC_API(bool)
+XPT_SkipStringInline(NotNull<XPTCursor*> cursor);
+
+extern XPT_PUBLIC_API(bool)
+XPT_DoCString(XPTArena *arena, NotNull<XPTCursor*> cursor, char **strp,
+              bool ignore = false);
+
+extern XPT_PUBLIC_API(bool)
+XPT_DoIID(NotNull<XPTCursor*> cursor, nsID *iidp);
+
+extern XPT_PUBLIC_API(bool)
+XPT_Do64(NotNull<XPTCursor*> cursor, int64_t *u64p);
+
+extern XPT_PUBLIC_API(bool)
+XPT_Do32(NotNull<XPTCursor*> cursor, uint32_t *u32p);
+
+extern XPT_PUBLIC_API(bool)
+XPT_Do16(NotNull<XPTCursor*> cursor, uint16_t *u16p);
+
+extern XPT_PUBLIC_API(bool)
+XPT_Do8(NotNull<XPTCursor*> cursor, uint8_t *u8p);
+
+extern XPT_PUBLIC_API(bool)
+XPT_DoHeader(XPTArena *arena, NotNull<XPTCursor*> cursor, XPTHeader **headerp);
+
+typedef enum {
+    XPT_HEADER = 0,
+    XPT_DATA = 1
+} XPTPool;
+
+struct XPTState {
+    uint32_t         data_offset;
+    uint32_t         next_cursor[2];
+    char             *pool_data;
+    uint32_t         pool_allocated;
+};
+
+struct XPTCursor {
+    XPTState    *state;
+    XPTPool     pool;
+    uint32_t    offset;
+    uint8_t     bits;
+};
+
+extern XPT_PUBLIC_API(void)
+XPT_InitXDRState(XPTState* state, char* data, uint32_t len);
+
+extern XPT_PUBLIC_API(bool)
+XPT_MakeCursor(XPTState *state, XPTPool pool, uint32_t len,
+               NotNull<XPTCursor*> cursor);
+
+extern XPT_PUBLIC_API(bool)
+XPT_SeekTo(NotNull<XPTCursor*> cursor, uint32_t offset);
+
+extern XPT_PUBLIC_API(void)
+XPT_SetDataOffset(XPTState *state, uint32_t data_offset);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __xpt_xdr_h__ */