103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stddef.h>
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#include "pb_decode.h"
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/* Structures for "Person" message */
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typedef enum {
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Person_PhoneType_MOBILE = 0,
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Person_PhoneType_HOME = 1,
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Person_PhoneType_WORK = 2,
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_Person_PhoneType_size = 0xFFFFFFFF // Force 32-bit enum
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} Person_PhoneType;
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typedef struct {
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char number[40];
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bool has_type;
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Person_PhoneType type;
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} Person_PhoneNumber;
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typedef struct {
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char name[40];
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int32_t id;
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bool has_email;
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char email[40];
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pb_callback_t phone;
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} Person;
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/* Field descriptions */
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#define membersize(st, m) (sizeof ((st*)0)->m)
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const pb_field_t Person_PhoneNumber_fields[] = {
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{1, offsetof(Person_PhoneNumber, number), PB_ACT_STRING, membersize(Person_PhoneNumber, number)},
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{2, offsetof(Person_PhoneNumber, has_type), PB_ACT_HAS, membersize(Person_PhoneNumber, has_type)},
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{2, offsetof(Person_PhoneNumber, type), PB_ACT_UINT32, membersize(Person_PhoneNumber, type)},
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PB_LAST_FIELD
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};
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const pb_field_t Person_fields[] = {
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{1, offsetof(Person, name), PB_ACT_STRING, membersize(Person, name)},
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{2, offsetof(Person, id), PB_ACT_INT32, membersize(Person, id)},
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{3, offsetof(Person, email), PB_ACT_STRING, membersize(Person, email)},
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{4, offsetof(Person, phone), PB_ACT_SUBMESSAGE, membersize(Person, phone)}
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};
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/* Default value descriptions */
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#define Person_PhoneNumber_default {"", false, Person_PhoneType_HOME};
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#define Person_default {"", 0, false, "", {{0},0}};
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/* And now, the actual test program */
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bool print_phonenumber(pb_istream_t *stream, const pb_field_t *field, void *arg)
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{
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Person_PhoneNumber x = Person_PhoneNumber_default;
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if (!pb_decode(stream, Person_PhoneNumber_fields, &x))
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return false;
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printf("PhoneNumber: number '%s' type '%d'\n", x.number, x.type);
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return true;
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}
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bool print_person(pb_istream_t *stream)
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{
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Person x = Person_default;
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x.phone.funcs.decode = &print_phonenumber;
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if (!pb_decode(stream, Person_fields, &x))
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return false;
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printf("Person: name '%s' id '%d' email '%s'\n", x.name, x.id, x.email);
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return true;
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}
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bool my_read(pb_istream_t *stream, char *buf, size_t count)
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{
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char *source = (char*)stream->state;
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if (!stream->bytes_left)
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return false;
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if (buf != NULL)
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{
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memcpy(buf, source, count);
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}
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stream->state = source + count;
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return true;
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}
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int main()
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{
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char buffer[512];
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size_t size = fread(buffer, 1, 512, stdin);
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pb_istream_t stream = {&my_read, buffer, size};
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if (!print_person(&stream))
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printf("Parsing failed.\n");
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return 0;
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}
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