* stuff. For the high-level interface, see pb_encode.h and pb_decode.h.
*/
-#ifndef _PB_H_
-#define _PB_H_
+#ifndef PB_H_INCLUDED
+#define PB_H_INCLUDED
/*****************************************************************
* Nanopb compilation time options. You can change these here by *
* uncommenting the lines, or on the compiler command line. *
*****************************************************************/
+/* Enable support for dynamically allocated fields */
+/* #define PB_ENABLE_MALLOC 1 */
+
/* Define this if your CPU architecture is big endian, i.e. it
* stores the most-significant byte first. */
/* #define __BIG_ENDIAN__ 1 */
/* Version of the nanopb library. Just in case you want to check it in
* your own program. */
-#define NANOPB_VERSION nanopb-0.2.3-dev
+#define NANOPB_VERSION nanopb-0.3.0-dev
/* Include all the system headers needed by nanopb. You will need the
* definitions of the following:
#include <stddef.h>
#include <stdbool.h>
#include <string.h>
+
+#ifdef PB_ENABLE_MALLOC
+#include <stdlib.h>
+#endif
#endif
/* Macro for defining packed structures (compiler dependent).
# define PB_PACKED_STRUCT_START
# define PB_PACKED_STRUCT_END
# define pb_packed __attribute__((packed))
-#elif defined(__ICCARM__)
- /* For IAR ARM compiler */
+#elif defined(__ICCARM__) || defined(__CC_ARM)
+ /* For IAR ARM and Keil MDK-ARM compilers */
# define PB_PACKED_STRUCT_START _Pragma("pack(push, 1)")
# define PB_PACKED_STRUCT_END _Pragma("pack(pop)")
# define pb_packed
#endif
/* Handly macro for suppressing unreferenced-parameter compiler warnings. */
-#ifndef UNUSED
-#define UNUSED(x) (void)(x)
+#ifndef PB_UNUSED
+#define PB_UNUSED(x) (void)(x)
#endif
/* Compile-time assertion, used for checking compatible compilation options.
- * If this fails on your compiler for some reason, use #define STATIC_ASSERT
- * to disable it. */
-#ifndef STATIC_ASSERT
-#define STATIC_ASSERT(COND,MSG) typedef char STATIC_ASSERT_MSG(MSG, __LINE__, __COUNTER__)[(COND)?1:-1];
-#define STATIC_ASSERT_MSG(MSG, LINE, COUNTER) STATIC_ASSERT_MSG_(MSG, LINE, COUNTER)
-#define STATIC_ASSERT_MSG_(MSG, LINE, COUNTER) static_assertion_##MSG##LINE##COUNTER
+ * If this does not work properly on your compiler, use
+ * #define PB_NO_STATIC_ASSERT to disable it.
+ *
+ * But before doing that, check carefully the error message / place where it
+ * comes from to see if the error has a real cause. Unfortunately the error
+ * message is not always very clear to read, but you can see the reason better
+ * in the place where the PB_STATIC_ASSERT macro was called.
+ */
+#ifndef PB_NO_STATIC_ASSERT
+#ifndef PB_STATIC_ASSERT
+#define PB_STATIC_ASSERT(COND,MSG) typedef char PB_STATIC_ASSERT_MSG(MSG, __LINE__, __COUNTER__)[(COND)?1:-1];
+#define PB_STATIC_ASSERT_MSG(MSG, LINE, COUNTER) PB_STATIC_ASSERT_MSG_(MSG, LINE, COUNTER)
+#define PB_STATIC_ASSERT_MSG_(MSG, LINE, COUNTER) pb_static_assertion_##MSG##LINE##COUNTER
+#endif
+#else
+#define PB_STATIC_ASSERT(COND,MSG)
#endif
/* Number of required fields to keep track of. */
/* List of possible field types. These are used in the autogenerated code.
* Least-significant 4 bits tell the scalar type
* Most-significant 4 bits specify repeated/required/packed etc.
- *
- * INT32 and UINT32 are treated the same, as are (U)INT64 and (S)FIXED*
- * These types are simply casted to correct field type when they are
- * assigned to the memory pointer.
- * SINT* is different, though, because it is zig-zag coded.
*/
typedef uint8_t pb_type_t;
/**** Field data types ****/
/* Numeric types */
-#define PB_LTYPE_VARINT 0x00 /* int32, uint32, int64, uint64, bool, enum */
-#define PB_LTYPE_SVARINT 0x01 /* sint32, sint64 */
-#define PB_LTYPE_FIXED32 0x02 /* fixed32, sfixed32, float */
-#define PB_LTYPE_FIXED64 0x03 /* fixed64, sfixed64, double */
+#define PB_LTYPE_VARINT 0x00 /* int32, int64, enum, bool */
+#define PB_LTYPE_UVARINT 0x01 /* uint32, uint64 */
+#define PB_LTYPE_SVARINT 0x02 /* sint32, sint64 */
+#define PB_LTYPE_FIXED32 0x03 /* fixed32, sfixed32, float */
+#define PB_LTYPE_FIXED64 0x04 /* fixed64, sfixed64, double */
/* Marker for last packable field type. */
-#define PB_LTYPE_LAST_PACKABLE 0x03
+#define PB_LTYPE_LAST_PACKABLE 0x04
/* Byte array with pre-allocated buffer.
* data_size is the length of the allocated PB_BYTES_ARRAY structure. */
-#define PB_LTYPE_BYTES 0x04
+#define PB_LTYPE_BYTES 0x05
/* String with pre-allocated buffer.
* data_size is the maximum length. */
-#define PB_LTYPE_STRING 0x05
+#define PB_LTYPE_STRING 0x06
/* Submessage
* submsg_fields is pointer to field descriptions */
-#define PB_LTYPE_SUBMESSAGE 0x06
+#define PB_LTYPE_SUBMESSAGE 0x07
/* Extension pseudo-field
* The field contains a pointer to pb_extension_t */
-#define PB_LTYPE_EXTENSION 0x07
+#define PB_LTYPE_EXTENSION 0x08
/* Number of declared LTYPES */
-#define PB_LTYPES_COUNT 8
+#define PB_LTYPES_COUNT 9
#define PB_LTYPE_MASK 0x0F
/**** Field repetition rules ****/
/**** Field allocation types ****/
#define PB_ATYPE_STATIC 0x00
+#define PB_ATYPE_POINTER 0x80
#define PB_ATYPE_CALLBACK 0x40
#define PB_ATYPE_MASK 0xC0
#define PB_HTYPE(x) ((x) & PB_HTYPE_MASK)
#define PB_LTYPE(x) ((x) & PB_LTYPE_MASK)
+/* Data type used for storing sizes of struct fields
+ * and array counts.
+ */
+#if defined(PB_FIELD_32BIT)
+#define PB_SIZE_MAX ((uint32_t)-1)
+ typedef uint32_t pb_size_t;
+ typedef int32_t pb_ssize_t;
+#elif defined(PB_FIELD_16BIT)
+#define PB_SIZE_MAX ((uint16_t)-1)
+ typedef uint16_t pb_size_t;
+ typedef int16_t pb_ssize_t;
+#else
+#define PB_SIZE_MAX ((uint8_t)-1)
+ typedef uint8_t pb_size_t;
+ typedef int8_t pb_ssize_t;
+#endif
+
/* This structure is used in auto-generated constants
* to specify struct fields.
* You can change field sizes if you need structures
* PB_FIELD_32BIT.
*/
PB_PACKED_STRUCT_START
-typedef struct _pb_field_t pb_field_t;
-struct _pb_field_t {
-
-#if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)
- uint8_t tag;
- pb_type_t type;
- uint8_t data_offset; /* Offset of field data, relative to previous field. */
- int8_t size_offset; /* Offset of array size or has-boolean, relative to data */
- uint8_t data_size; /* Data size in bytes for a single item */
- uint8_t array_size; /* Maximum number of entries in array */
-#elif defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)
- uint16_t tag;
- pb_type_t type;
- uint8_t data_offset;
- int8_t size_offset;
- uint16_t data_size;
- uint16_t array_size;
-#else
- uint32_t tag;
+typedef struct pb_field_s pb_field_t;
+struct pb_field_s {
+ pb_size_t tag;
pb_type_t type;
- uint8_t data_offset;
- int8_t size_offset;
- uint32_t data_size;
- uint32_t array_size;
-#endif
+ pb_size_t data_offset; /* Offset of field data, relative to previous field. */
+ pb_ssize_t size_offset; /* Offset of array size or has-boolean, relative to data */
+ pb_size_t data_size; /* Data size in bytes for a single item */
+ pb_size_t array_size; /* Maximum number of entries in array */
/* Field definitions for submessage
* OR default value for all other non-array, non-callback types
PB_PACKED_STRUCT_END
/* Make sure that the standard integer types are of the expected sizes.
- * All kinds of things may break otherwise.. atleast all fixed* types. */
-STATIC_ASSERT(sizeof(int8_t) == 1, INT8_T_WRONG_SIZE)
-STATIC_ASSERT(sizeof(uint8_t) == 1, UINT8_T_WRONG_SIZE)
-STATIC_ASSERT(sizeof(int16_t) == 2, INT16_T_WRONG_SIZE)
-STATIC_ASSERT(sizeof(uint16_t) == 2, UINT16_T_WRONG_SIZE)
-STATIC_ASSERT(sizeof(int32_t) == 4, INT32_T_WRONG_SIZE)
-STATIC_ASSERT(sizeof(uint32_t) == 4, UINT32_T_WRONG_SIZE)
-STATIC_ASSERT(sizeof(int64_t) == 8, INT64_T_WRONG_SIZE)
-STATIC_ASSERT(sizeof(uint64_t) == 8, UINT64_T_WRONG_SIZE)
+ * All kinds of things may break otherwise.. atleast all fixed* types.
+ *
+ * If you get errors here, it probably means that your stdint.h is not
+ * correct for your platform.
+ */
+PB_STATIC_ASSERT(sizeof(int8_t) == 1, INT8_T_WRONG_SIZE)
+PB_STATIC_ASSERT(sizeof(uint8_t) == 1, UINT8_T_WRONG_SIZE)
+PB_STATIC_ASSERT(sizeof(int16_t) == 2, INT16_T_WRONG_SIZE)
+PB_STATIC_ASSERT(sizeof(uint16_t) == 2, UINT16_T_WRONG_SIZE)
+PB_STATIC_ASSERT(sizeof(int32_t) == 4, INT32_T_WRONG_SIZE)
+PB_STATIC_ASSERT(sizeof(uint32_t) == 4, UINT32_T_WRONG_SIZE)
+PB_STATIC_ASSERT(sizeof(int64_t) == 8, INT64_T_WRONG_SIZE)
+PB_STATIC_ASSERT(sizeof(uint64_t) == 8, UINT64_T_WRONG_SIZE)
/* This structure is used for 'bytes' arrays.
* It has the number of bytes in the beginning, and after that an array.
* Note that actual structs used will have a different length of bytes array.
*/
-struct _pb_bytes_array_t {
- size_t size;
+#define PB_BYTES_ARRAY_T(n) struct { pb_size_t size; uint8_t bytes[n]; }
+#define PB_BYTES_ARRAY_T_ALLOCSIZE(n) ((size_t)n + offsetof(pb_bytes_array_t, bytes))
+
+struct pb_bytes_array_s {
+ pb_size_t size;
uint8_t bytes[1];
};
-
-typedef struct _pb_bytes_array_t pb_bytes_array_t;
+typedef struct pb_bytes_array_s pb_bytes_array_t;
/* This structure is used for giving the callback function.
* It is stored in the message structure and filled in by the method that
*
* The callback can be null if you want to skip a field.
*/
-typedef struct _pb_istream_t pb_istream_t;
-typedef struct _pb_ostream_t pb_ostream_t;
-typedef struct _pb_callback_t pb_callback_t;
-struct _pb_callback_t {
+typedef struct pb_istream_s pb_istream_t;
+typedef struct pb_ostream_s pb_ostream_t;
+typedef struct pb_callback_s pb_callback_t;
+struct pb_callback_s {
#ifdef PB_OLD_CALLBACK_STYLE
/* Deprecated since nanopb-0.2.1 */
union {
* if you want to catch all unknown fields, you can also create a custom
* pb_extension_type_t with your own callback.
*/
-typedef struct _pb_extension_type_t pb_extension_type_t;
-typedef struct _pb_extension_t pb_extension_t;
-struct _pb_extension_type_t {
+typedef struct pb_extension_type_s pb_extension_type_t;
+typedef struct pb_extension_s pb_extension_t;
+struct pb_extension_type_s {
/* Called for each unknown field in the message.
* If you handle the field, read off all of its data and return true.
* If you do not handle the field, do not read anything and return true.
const void *arg;
};
-struct _pb_extension_t {
+struct pb_extension_s {
/* Type describing the extension field. Usually you'll initialize
* this to a pointer to the automatically generated structure. */
const pb_extension_type_t *type;
* If this extension does not match a field, the next handler is
* automatically called. */
pb_extension_t *next;
+
+ /* The decoder sets this to true if the extension was found.
+ * Ignored for encoding. */
+ bool found;
};
+/* Memory allocation functions to use. You can define pb_realloc and
+ * pb_free to custom functions if you want. */
+#ifdef PB_ENABLE_MALLOC
+# ifndef pb_realloc
+# define pb_realloc(ptr, size) realloc(ptr, size)
+# endif
+# ifndef pb_free
+# define pb_free(ptr) free(ptr)
+# endif
+#endif
+
/* These macros are used to declare pb_field_t's in the constant array. */
/* Size of a structure member, in bytes. */
#define pb_membersize(st, m) (sizeof ((st*)0)->m)
pb_membersize(st, m[0]), \
pb_arraysize(st, m), ptr}
+/* Allocated fields carry the size of the actual data, not the pointer */
+#define PB_REQUIRED_POINTER(tag, st, m, fd, ltype, ptr) \
+ {tag, PB_ATYPE_POINTER | PB_HTYPE_REQUIRED | ltype, \
+ fd, 0, pb_membersize(st, m[0]), 0, ptr}
+
+/* Optional fields don't need a has_ variable, as information would be redundant */
+#define PB_OPTIONAL_POINTER(tag, st, m, fd, ltype, ptr) \
+ {tag, PB_ATYPE_POINTER | PB_HTYPE_OPTIONAL | ltype, \
+ fd, 0, pb_membersize(st, m[0]), 0, ptr}
+
+/* Repeated fields have a _count field and a pointer to array of pointers */
+#define PB_REPEATED_POINTER(tag, st, m, fd, ltype, ptr) \
+ {tag, PB_ATYPE_POINTER | PB_HTYPE_REPEATED | ltype, \
+ fd, pb_delta(st, m ## _count, m), \
+ pb_membersize(st, m[0]), 0, ptr}
+
/* Callbacks are much like required fields except with special datatype. */
#define PB_REQUIRED_CALLBACK(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_CALLBACK | PB_HTYPE_REQUIRED | ltype, \
#define PB_LTYPE_MAP_SINT32 PB_LTYPE_SVARINT
#define PB_LTYPE_MAP_SINT64 PB_LTYPE_SVARINT
#define PB_LTYPE_MAP_STRING PB_LTYPE_STRING
-#define PB_LTYPE_MAP_UINT32 PB_LTYPE_VARINT
-#define PB_LTYPE_MAP_UINT64 PB_LTYPE_VARINT
+#define PB_LTYPE_MAP_UINT32 PB_LTYPE_UVARINT
+#define PB_LTYPE_MAP_UINT64 PB_LTYPE_UVARINT
#define PB_LTYPE_MAP_EXTENSION PB_LTYPE_EXTENSION
/* This is the actual macro used in field descriptions.
* messages if not used.
*/
#ifdef PB_NO_ERRMSG
-#define PB_RETURN_ERROR(stream,msg) return false
+#define PB_RETURN_ERROR(stream,msg) \
+ do {\
+ PB_UNUSED(stream); \
+ return false; \
+ } while(0)
#define PB_GET_ERROR(stream) "(errmsg disabled)"
#else
#define PB_RETURN_ERROR(stream,msg) \
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