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111
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1 /* { dg-do compile } */
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2
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3 typedef unsigned _GCC_ATTR_ALIGN_u32t;
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4 typedef _GCC_ATTR_ALIGN_u32t _Uint32t __attribute__ ((__aligned__ (4)));
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5 typedef unsigned int _GCC_ATTR_ALIGN_u8t __attribute__ ((__mode__ (__QI__)));
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6 typedef _GCC_ATTR_ALIGN_u8t _Uint8t __attribute__ ((__aligned__ (1)));
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7 typedef unsigned _Sizet;
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8 typedef _Sizet size_t;
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9 typedef _Uint8t uint8_t;
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10 typedef _Uint32t uint32_t;
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11 typedef enum
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12 {
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13 PROTOBUF_C_LABEL_REQUIRED, PROTOBUF_C_LABEL_OPTIONAL,
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14 PROTOBUF_C_LABEL_REPEATED
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15 }
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16 ProtobufCLabel;
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17 typedef enum
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18 {
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19 PROTOBUF_C_TYPE_INT32, PROTOBUF_C_TYPE_SINT32, PROTOBUF_C_TYPE_SFIXED32,
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20 PROTOBUF_C_TYPE_INT64, PROTOBUF_C_TYPE_SINT64, PROTOBUF_C_TYPE_SFIXED64,
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21 PROTOBUF_C_TYPE_UINT32, PROTOBUF_C_TYPE_FIXED32, PROTOBUF_C_TYPE_UINT64,
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22 PROTOBUF_C_TYPE_FIXED64, PROTOBUF_C_TYPE_FLOAT, PROTOBUF_C_TYPE_DOUBLE,
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23 PROTOBUF_C_TYPE_BOOL, PROTOBUF_C_TYPE_ENUM, PROTOBUF_C_TYPE_STRING,
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24 PROTOBUF_C_TYPE_BYTES, PROTOBUF_C_TYPE_MESSAGE,
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25 }
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26 ProtobufCType;
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27 typedef struct _ProtobufCBinaryData ProtobufCBinaryData;
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28 struct _ProtobufCBinaryData
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29 {
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30 size_t len;
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31 };
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32 typedef struct _ProtobufCMessageDescriptor ProtobufCMessageDescriptor;
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33 typedef struct _ProtobufCFieldDescriptor ProtobufCFieldDescriptor;
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34 typedef struct _ProtobufCMessage ProtobufCMessage;
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35 struct _ProtobufCFieldDescriptor
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36 {
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37 uint32_t id;
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38 ProtobufCLabel label;
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39 ProtobufCType type;
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40 unsigned offset;
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41 };
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42 struct _ProtobufCMessageDescriptor
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43 {
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44 unsigned n_fields;
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45 const ProtobufCFieldDescriptor *fields;
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46 };
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47 struct _ProtobufCMessage
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48 {
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49 const ProtobufCMessageDescriptor *descriptor;
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50 };
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51 typedef enum
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52 {
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53 PROTOBUF_C_WIRE_TYPE_VARINT, PROTOBUF_C_WIRE_TYPE_64BIT,
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54 PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED, PROTOBUF_C_WIRE_TYPE_START_GROUP,
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55 PROTOBUF_C_WIRE_TYPE_END_GROUP, PROTOBUF_C_WIRE_TYPE_32BIT
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56 }
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57 ProtobufCWireType;
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58 size_t tag_pack (uint32_t, uint8_t *);
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59 size_t prefixed_message_pack (ProtobufCMessage *, uint8_t *);
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60 static inline size_t
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61 uint32_pack (uint32_t value, uint8_t * out)
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62 {
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63 unsigned rv = 0;
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64 if (value >= 0x80)
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65 {
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66 if (value >= 0x80)
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67 {
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68 value >>= 7;
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69 }
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70 }
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71 out[rv++] = value;
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72 }
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73
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74 static inline size_t
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75 binary_data_pack (const ProtobufCBinaryData * bd, uint8_t * out)
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76 {
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77 size_t len = bd->len;
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78 size_t rv = uint32_pack (len, out);
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79 return rv + len;
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80 }
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81
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82 static size_t
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83 required_field_pack (const ProtobufCFieldDescriptor * field,
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84 const void *member, uint8_t * out)
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85 {
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86 size_t rv = tag_pack (field->id, out);
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87 switch (field->type)
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88 {
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89 case PROTOBUF_C_TYPE_BYTES:
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90 {
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91 const ProtobufCBinaryData *bd =
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92 ((const ProtobufCBinaryData *) member);
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93 out[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED;
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94 return rv + binary_data_pack (bd, out + rv);
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95 }
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96 case PROTOBUF_C_TYPE_MESSAGE:
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97 {
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98 out[0] |= PROTOBUF_C_WIRE_TYPE_LENGTH_PREFIXED;
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99 return rv +
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100 prefixed_message_pack (*(ProtobufCMessage * const *) member,
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101 out + rv);
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102 }
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103 }
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104 }
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105
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106 size_t
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107 protobuf_c_message_pack (const ProtobufCMessage * message, uint8_t * out)
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108 {
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109 unsigned i;
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110 size_t rv = 0;
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111 for (i = 0; i < message->descriptor->n_fields; i++)
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112 {
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113 const ProtobufCFieldDescriptor *field = message->descriptor->fields + i;
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114 const void *member = ((const char *) message) + field->offset;
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115 if (field->label == PROTOBUF_C_LABEL_REQUIRED)
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116 rv += required_field_pack (field, member, out + rv);
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117 }
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118 }
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