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