1 files changed, 87 insertions, 0 deletions
diff --git a/src/mpack/core.h b/src/mpack/core.h
new file mode 100644
index 0000000000..9edd13c41e
--- /dev/null
+++ b/src/mpack/core.h
@@ -0,0 +1,87 @@
+#ifndef MPACK_CORE_H
+#define MPACK_CORE_H
+
+#ifndef MPACK_API
+# define MPACK_API extern
+#endif
+
+#include <assert.h>
+#include <limits.h>
+#include <stddef.h>
+
+#ifdef __GNUC__
+# define FPURE __attribute__((const))
+# define FNONULL __attribute__((nonnull))
+# define FNONULL_ARG(x) __attribute__((nonnull x))
+# define FUNUSED __attribute__((unused))
+#else
+# define FPURE
+# define FNONULL
+# define FNONULL_ARG(x)
+# define FUNUSED
+#endif
+
+#if UINT_MAX == 0xffffffff
+typedef int mpack_sint32_t;
+typedef unsigned int mpack_uint32_t;
+#elif ULONG_MAX == 0xffffffff
+typedef long mpack_sint32_t;
+typedef unsigned long mpack_uint32_t;
+#else
+# error "can't find unsigned 32-bit integer type"
+#endif
+
+typedef struct mpack_value_s {
+  mpack_uint32_t lo, hi;
+} mpack_value_t;
+
+
+enum {
+  MPACK_OK = 0,
+  MPACK_EOF = 1,
+  MPACK_ERROR = 2
+};
+
+#define MPACK_MAX_TOKEN_LEN 9  /* 64-bit ints/floats plus type code */
+
+typedef enum {
+  MPACK_TOKEN_NIL       = 1,
+  MPACK_TOKEN_BOOLEAN   = 2,
+  MPACK_TOKEN_UINT      = 3,
+  MPACK_TOKEN_SINT      = 4,
+  MPACK_TOKEN_FLOAT     = 5,
+  MPACK_TOKEN_CHUNK     = 6,
+  MPACK_TOKEN_ARRAY     = 7,
+  MPACK_TOKEN_MAP       = 8,
+  MPACK_TOKEN_BIN       = 9,
+  MPACK_TOKEN_STR       = 10,
+  MPACK_TOKEN_EXT       = 11
+} mpack_token_type_t;
+
+typedef struct mpack_token_s {
+  mpack_token_type_t type;  /* Type of token */
+  mpack_uint32_t length;    /* Byte length for str/bin/ext/chunk/float/int/uint.
+                               Item count for array/map. */
+  union {
+    mpack_value_t value;    /* 32-bit parts of primitives (bool,int,float) */
+    const char *chunk_ptr;  /* Chunk of data from str/bin/ext */
+    int ext_type;           /* Type field for ext tokens */
+  } data;
+} mpack_token_t;
+
+typedef struct mpack_tokbuf_s {
+  char pending[MPACK_MAX_TOKEN_LEN];
+  mpack_token_t pending_tok;
+  size_t ppos, plen;
+  mpack_uint32_t passthrough;
+} mpack_tokbuf_t;
+
+#define MPACK_TOKBUF_INITIAL_VALUE { { 0 }, { 0, 0, { { 0, 0 } } }, 0, 0, 0 }
+
+MPACK_API void mpack_tokbuf_init(mpack_tokbuf_t *tb) FUNUSED FNONULL;
+MPACK_API int mpack_read(mpack_tokbuf_t *tb, const char **b, size_t *bl,
+    mpack_token_t *tok) FUNUSED FNONULL;
+MPACK_API int mpack_write(mpack_tokbuf_t *tb, char **b, size_t *bl,
+    const mpack_token_t *tok) FUNUSED FNONULL;
+
+#endif  /* MPACK_CORE_H */