123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556 |
- /* Common parts of the nanopb library. Most of these are quite low-level
- * stuff. For the high-level interface, see pb_encode.h and pb_decode.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 / compiler combination does not support
- * unaligned memory access to packed structures. */
- #define PB_NO_PACKED_STRUCTS 1
- /* Increase the number of required fields that are tracked.
- * A compiler warning will tell if you need this. */
- /* #define PB_MAX_REQUIRED_FIELDS 256 */
- /* Add support for tag numbers > 255 and fields larger than 255 bytes. */
- /* #define PB_FIELD_16BIT 1 */
- /* Add support for tag numbers > 65536 and fields larger than 65536 bytes. */
- /* #define PB_FIELD_32BIT 1 */
- /* Disable support for error messages in order to save some code space. */
- #define PB_NO_ERRMSG 1
- /* Disable support for custom streams (support only memory buffers). */
- /* #define PB_BUFFER_ONLY 1 */
- /* Switch back to the old-style callback function signature.
- * This was the default until nanopb-0.2.1. */
- /* #define PB_OLD_CALLBACK_STYLE */
- /******************************************************************
- * You usually don't need to change anything below this line. *
- * Feel free to look around and use the defined macros, though. *
- ******************************************************************/
- /* Version of the nanopb library. Just in case you want to check it in
- * your own program. */
- #define NANOPB_VERSION nanopb-0.3.6-dev
- /* Include all the system headers needed by nanopb. You will need the
- * definitions of the following:
- * - strlen, memcpy, memset functions
- * - [u]int_least8_t, uint_fast8_t, [u]int_least16_t, [u]int32_t, [u]int64_t
- * - size_t
- * - bool
- *
- * If you don't have the standard header files, you can instead provide
- * a custom header that defines or includes all this. In that case,
- * define PB_SYSTEM_HEADER to the path of this file.
- */
- #ifdef PB_SYSTEM_HEADER
- #include PB_SYSTEM_HEADER
- #else
- #include <stdint.h>
- #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).
- * This just reduces memory requirements, but is not required.
- */
- #if defined(PB_NO_PACKED_STRUCTS)
- /* Disable struct packing */
- # define PB_PACKED_STRUCT_START
- # define PB_PACKED_STRUCT_END
- # define pb_packed
- #elif defined(__GNUC__) || defined(__clang__)
- /* For GCC and clang */
- # define PB_PACKED_STRUCT_START
- # define PB_PACKED_STRUCT_END
- # define pb_packed __attribute__((packed))
- #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
- #elif defined(_MSC_VER) && (_MSC_VER >= 1500)
- /* For Microsoft Visual C++ */
- # define PB_PACKED_STRUCT_START __pragma(pack(push, 1))
- # define PB_PACKED_STRUCT_END __pragma(pack(pop))
- # define pb_packed
- #else
- /* Unknown compiler */
- # define PB_PACKED_STRUCT_START
- # define PB_PACKED_STRUCT_END
- # define pb_packed
- #endif
- /* Handly macro for suppressing unreferenced-parameter compiler warnings. */
- #ifndef PB_UNUSED
- #define PB_UNUSED(x) (void)(x)
- #endif
- /* Compile-time assertion, used for checking compatible compilation options.
- * 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. */
- #ifndef PB_MAX_REQUIRED_FIELDS
- #define PB_MAX_REQUIRED_FIELDS 64
- #endif
- #if PB_MAX_REQUIRED_FIELDS < 64
- #error You should not lower PB_MAX_REQUIRED_FIELDS from the default value (64).
- #endif
- /* 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.
- */
- typedef uint_least8_t pb_type_t;
- /**** Field data types ****/
- /* Numeric types */
- #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 0x04
- /* Byte array with pre-allocated buffer.
- * data_size is the length of the allocated PB_BYTES_ARRAY structure. */
- #define PB_LTYPE_BYTES 0x05
- /* String with pre-allocated buffer.
- * data_size is the maximum length. */
- #define PB_LTYPE_STRING 0x06
- /* Submessage
- * submsg_fields is pointer to field descriptions */
- #define PB_LTYPE_SUBMESSAGE 0x07
- /* Extension pseudo-field
- * The field contains a pointer to pb_extension_t */
- #define PB_LTYPE_EXTENSION 0x08
- /* Number of declared LTYPES */
- #define PB_LTYPES_COUNT 9
- #define PB_LTYPE_MASK 0x0F
- /**** Field repetition rules ****/
- #define PB_HTYPE_REQUIRED 0x00
- #define PB_HTYPE_OPTIONAL 0x10
- #define PB_HTYPE_REPEATED 0x20
- #define PB_HTYPE_ONEOF 0x30
- #define PB_HTYPE_MASK 0x30
- /**** 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_ATYPE(x) ((x) & PB_ATYPE_MASK)
- #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)
- typedef uint32_t pb_size_t;
- typedef int32_t pb_ssize_t;
- #elif defined(PB_FIELD_16BIT)
- typedef uint_least16_t pb_size_t;
- typedef int_least16_t pb_ssize_t;
- #else
- typedef uint_least8_t pb_size_t;
- typedef int_least8_t pb_ssize_t;
- #endif
- #define PB_SIZE_MAX ((pb_size_t)-1)
- /* Data type for storing encoded data and other byte streams.
- * This typedef exists to support platforms where uint8_t does not exist.
- * You can regard it as equivalent on uint8_t on other platforms.
- */
- typedef uint_least8_t pb_byte_t;
- /* This structure is used in auto-generated constants
- * to specify struct fields.
- * You can change field sizes if you need structures
- * larger than 256 bytes or field tags larger than 256.
- * The compiler should complain if your .proto has such
- * structures. Fix that by defining PB_FIELD_16BIT or
- * PB_FIELD_32BIT.
- */
- PB_PACKED_STRUCT_START
- typedef struct pb_field_s pb_field_t;
- struct pb_field_s {
- pb_size_t tag;
- pb_type_t type;
- 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
- * If null, then field will zeroed. */
- const void *ptr;
- } pb_packed;
- PB_PACKED_STRUCT_END
- /* Make sure that the standard integer types are of the expected sizes.
- * Otherwise fixed32/fixed64 fields can break.
- *
- * If you get errors here, it probably means that your stdint.h is not
- * correct for your platform.
- */
- PB_STATIC_ASSERT(sizeof(int64_t) == 2 * sizeof(int32_t), INT64_T_WRONG_SIZE)
- PB_STATIC_ASSERT(sizeof(uint64_t) == 2 * sizeof(uint32_t), 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.
- */
- #define PB_BYTES_ARRAY_T(n) struct { pb_size_t size; pb_byte_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;
- pb_byte_t bytes[1];
- };
- 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
- * calls pb_decode.
- *
- * The decoding callback will be given a limited-length stream
- * If the wire type was string, the length is the length of the string.
- * If the wire type was a varint/fixed32/fixed64, the length is the length
- * of the actual value.
- * The function may be called multiple times (especially for repeated types,
- * but also otherwise if the message happens to contain the field multiple
- * times.)
- *
- * The encoding callback will receive the actual output stream.
- * It should write all the data in one call, including the field tag and
- * wire type. It can write multiple fields.
- *
- * The callback can be null if you want to skip a field.
- */
- 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 {
- bool (*decode)(pb_istream_t *stream, const pb_field_t *field, void *arg);
- bool (*encode)(pb_ostream_t *stream, const pb_field_t *field, const void *arg);
- } funcs;
- #else
- /* New function signature, which allows modifying arg contents in callback. */
- union {
- bool (*decode)(pb_istream_t *stream, const pb_field_t *field, void **arg);
- bool (*encode)(pb_ostream_t *stream, const pb_field_t *field, void * const *arg);
- } funcs;
- #endif
-
- /* Free arg for use by callback */
- void *arg;
- };
- /* Wire types. Library user needs these only in encoder callbacks. */
- typedef enum {
- PB_WT_VARINT = 0,
- PB_WT_64BIT = 1,
- PB_WT_STRING = 2,
- PB_WT_32BIT = 5
- } pb_wire_type_t;
- /* Structure for defining the handling of unknown/extension fields.
- * Usually the pb_extension_type_t structure is automatically generated,
- * while the pb_extension_t structure is created by the user. However,
- * 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_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.
- * If you run into an error, return false.
- * Set to NULL for default handler.
- */
- bool (*decode)(pb_istream_t *stream, pb_extension_t *extension,
- uint32_t tag, pb_wire_type_t wire_type);
-
- /* Called once after all regular fields have been encoded.
- * If you have something to write, do so and return true.
- * If you do not have anything to write, just return true.
- * If you run into an error, return false.
- * Set to NULL for default handler.
- */
- bool (*encode)(pb_ostream_t *stream, const pb_extension_t *extension);
-
- /* Free field for use by the callback. */
- const void *arg;
- };
- 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;
-
- /* Destination for the decoded data. This must match the datatype
- * of the extension field. */
- void *dest;
-
- /* Pointer to the next extension handler, or NULL.
- * 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
- /* This is used to inform about need to regenerate .pb.h/.pb.c files. */
- #define PB_PROTO_HEADER_VERSION 30
- /* 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)
- /* Number of entries in an array. */
- #define pb_arraysize(st, m) (pb_membersize(st, m) / pb_membersize(st, m[0]))
- /* Delta from start of one member to the start of another member. */
- #define pb_delta(st, m1, m2) ((int)offsetof(st, m1) - (int)offsetof(st, m2))
- /* Marks the end of the field list */
- #define PB_LAST_FIELD {0,(pb_type_t) 0,0,0,0,0,0}
- /* Macros for filling in the data_offset field */
- /* data_offset for first field in a message */
- #define PB_DATAOFFSET_FIRST(st, m1, m2) (offsetof(st, m1))
- /* data_offset for subsequent fields */
- #define PB_DATAOFFSET_OTHER(st, m1, m2) (offsetof(st, m1) - offsetof(st, m2) - pb_membersize(st, m2))
- /* Choose first/other based on m1 == m2 (deprecated, remains for backwards compatibility) */
- #define PB_DATAOFFSET_CHOOSE(st, m1, m2) (int)(offsetof(st, m1) == offsetof(st, m2) \
- ? PB_DATAOFFSET_FIRST(st, m1, m2) \
- : PB_DATAOFFSET_OTHER(st, m1, m2))
- /* Required fields are the simplest. They just have delta (padding) from
- * previous field end, and the size of the field. Pointer is used for
- * submessages and default values.
- */
- #define PB_REQUIRED_STATIC(tag, st, m, fd, ltype, ptr) \
- {tag, PB_ATYPE_STATIC | PB_HTYPE_REQUIRED | ltype, \
- fd, 0, pb_membersize(st, m), 0, ptr}
- /* Optional fields add the delta to the has_ variable. */
- #define PB_OPTIONAL_STATIC(tag, st, m, fd, ltype, ptr) \
- {tag, PB_ATYPE_STATIC | PB_HTYPE_OPTIONAL | ltype, \
- fd, \
- pb_delta(st, has_ ## m, m), \
- pb_membersize(st, m), 0, ptr}
- /* Repeated fields have a _count field and also the maximum number of entries. */
- #define PB_REPEATED_STATIC(tag, st, m, fd, ltype, ptr) \
- {tag, PB_ATYPE_STATIC | PB_HTYPE_REPEATED | ltype, \
- fd, \
- pb_delta(st, m ## _count, 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, \
- fd, 0, pb_membersize(st, m), 0, ptr}
- #define PB_OPTIONAL_CALLBACK(tag, st, m, fd, ltype, ptr) \
- {tag, PB_ATYPE_CALLBACK | PB_HTYPE_OPTIONAL | ltype, \
- fd, 0, pb_membersize(st, m), 0, ptr}
-
- #define PB_REPEATED_CALLBACK(tag, st, m, fd, ltype, ptr) \
- {tag, PB_ATYPE_CALLBACK | PB_HTYPE_REPEATED | ltype, \
- fd, 0, pb_membersize(st, m), 0, ptr}
- /* Optional extensions don't have the has_ field, as that would be redundant. */
- #define PB_OPTEXT_STATIC(tag, st, m, fd, ltype, ptr) \
- {tag, PB_ATYPE_STATIC | PB_HTYPE_OPTIONAL | ltype, \
- 0, \
- 0, \
- pb_membersize(st, m), 0, ptr}
- #define PB_OPTEXT_POINTER(tag, st, m, fd, ltype, ptr) \
- PB_OPTIONAL_POINTER(tag, st, m, fd, ltype, ptr)
- #define PB_OPTEXT_CALLBACK(tag, st, m, fd, ltype, ptr) \
- PB_OPTIONAL_CALLBACK(tag, st, m, fd, ltype, ptr)
- /* The mapping from protobuf types to LTYPEs is done using these macros. */
- #define PB_LTYPE_MAP_BOOL PB_LTYPE_VARINT
- #define PB_LTYPE_MAP_BYTES PB_LTYPE_BYTES
- #define PB_LTYPE_MAP_DOUBLE PB_LTYPE_FIXED64
- #define PB_LTYPE_MAP_ENUM PB_LTYPE_VARINT
- #define PB_LTYPE_MAP_UENUM PB_LTYPE_UVARINT
- #define PB_LTYPE_MAP_FIXED32 PB_LTYPE_FIXED32
- #define PB_LTYPE_MAP_FIXED64 PB_LTYPE_FIXED64
- #define PB_LTYPE_MAP_FLOAT PB_LTYPE_FIXED32
- #define PB_LTYPE_MAP_INT32 PB_LTYPE_VARINT
- #define PB_LTYPE_MAP_INT64 PB_LTYPE_VARINT
- #define PB_LTYPE_MAP_MESSAGE PB_LTYPE_SUBMESSAGE
- #define PB_LTYPE_MAP_SFIXED32 PB_LTYPE_FIXED32
- #define PB_LTYPE_MAP_SFIXED64 PB_LTYPE_FIXED64
- #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_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.
- * It takes these arguments:
- * - Field tag number
- * - Field type: BOOL, BYTES, DOUBLE, ENUM, UENUM, FIXED32, FIXED64,
- * FLOAT, INT32, INT64, MESSAGE, SFIXED32, SFIXED64
- * SINT32, SINT64, STRING, UINT32, UINT64 or EXTENSION
- * - Field rules: REQUIRED, OPTIONAL or REPEATED
- * - Allocation: STATIC or CALLBACK
- * - Placement: FIRST or OTHER, depending on if this is the first field in structure.
- * - Message name
- * - Field name
- * - Previous field name (or field name again for first field)
- * - Pointer to default value or submsg fields.
- */
- #define PB_FIELD(tag, type, rules, allocation, placement, message, field, prevfield, ptr) \
- PB_ ## rules ## _ ## allocation(tag, message, field, \
- PB_DATAOFFSET_ ## placement(message, field, prevfield), \
- PB_LTYPE_MAP_ ## type, ptr)
- /* Field description for oneof fields. This requires taking into account the
- * union name also, that's why a separate set of macros is needed.
- */
- #define PB_ONEOF_STATIC(u, tag, st, m, fd, ltype, ptr) \
- {tag, PB_ATYPE_STATIC | PB_HTYPE_ONEOF | ltype, \
- fd, pb_delta(st, which_ ## u, u.m), \
- pb_membersize(st, u.m), 0, ptr}
- #define PB_ONEOF_POINTER(u, tag, st, m, fd, ltype, ptr) \
- {tag, PB_ATYPE_POINTER | PB_HTYPE_ONEOF | ltype, \
- fd, pb_delta(st, which_ ## u, u.m), \
- pb_membersize(st, u.m[0]), 0, ptr}
- #define PB_ONEOF_FIELD(union_name, tag, type, rules, allocation, placement, message, field, prevfield, ptr) \
- PB_ONEOF_ ## allocation(union_name, tag, message, field, \
- PB_DATAOFFSET_ ## placement(message, union_name.field, prevfield), \
- PB_LTYPE_MAP_ ## type, ptr)
- #define PB_ANONYMOUS_ONEOF_STATIC(u, tag, st, m, fd, ltype, ptr) \
- {tag, PB_ATYPE_STATIC | PB_HTYPE_ONEOF | ltype, \
- fd, pb_delta(st, which_ ## u, m), \
- pb_membersize(st, m), 0, ptr}
- #define PB_ANONYMOUS_ONEOF_POINTER(u, tag, st, m, fd, ltype, ptr) \
- {tag, PB_ATYPE_POINTER | PB_HTYPE_ONEOF | ltype, \
- fd, pb_delta(st, which_ ## u, m), \
- pb_membersize(st, m[0]), 0, ptr}
- #define PB_ANONYMOUS_ONEOF_FIELD(union_name, tag, type, rules, allocation, placement, message, field, prevfield, ptr) \
- PB_ANONYMOUS_ONEOF_ ## allocation(union_name, tag, message, field, \
- PB_DATAOFFSET_ ## placement(message, field, prevfield), \
- PB_LTYPE_MAP_ ## type, ptr)
- /* These macros are used for giving out error messages.
- * They are mostly a debugging aid; the main error information
- * is the true/false return value from functions.
- * Some code space can be saved by disabling the error
- * messages if not used.
- *
- * PB_SET_ERROR() sets the error message if none has been set yet.
- * msg must be a constant string literal.
- * PB_GET_ERROR() always returns a pointer to a string.
- * PB_RETURN_ERROR() sets the error and returns false from current
- * function.
- */
- #ifdef PB_NO_ERRMSG
- #define PB_SET_ERROR(stream, msg) PB_UNUSED(stream)
- #define PB_GET_ERROR(stream) "(errmsg disabled)"
- #else
- #define PB_SET_ERROR(stream, msg) (stream->errmsg = (stream)->errmsg ? (stream)->errmsg : (msg))
- #define PB_GET_ERROR(stream) ((stream)->errmsg ? (stream)->errmsg : "(none)")
- #endif
- #define PB_RETURN_ERROR(stream, msg) return PB_SET_ERROR(stream, msg), false
- #endif
|