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Change the code style to FreeBSD style #23

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May 14, 2020
Merged

Change the code style to FreeBSD style #23

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353 changes: 177 additions & 176 deletions pg_hashids.c
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Original file line number Diff line number Diff line change
Expand Up @@ -19,208 +19,209 @@ PG_FUNCTION_INFO_V1(id_decode_once);

static void hashids_error()
{
switch (hashids_errno) {
case HASHIDS_ERROR_ALLOC:
ereport(ERROR, (errcode(ERRCODE_OUT_OF_MEMORY), errmsg("allocation failed")));
break;
case HASHIDS_ERROR_ALPHABET_LENGTH:
ereport(ERROR, (errcode(ERRCODE_INVALID_PARAMETER_VALUE), errmsg("alphabet is too short")));
break;
case HASHIDS_ERROR_ALPHABET_SPACE:
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("alphabet contains whitespace characters")));
break;
case HASHIDS_ERROR_INVALID_HASH:
ereport(ERROR, (errcode(ERRCODE_INVALID_PARAMETER_VALUE), errmsg("invalid hash")));
break;
default:
ereport(ERROR, (errcode(ERRCODE_EXTERNAL_ROUTINE_EXCEPTION), errmsg("unknown error")));
break;
}
switch (hashids_errno) {
case HASHIDS_ERROR_ALLOC:
ereport(ERROR, (errcode(ERRCODE_OUT_OF_MEMORY), errmsg("allocation failed")));
break;
case HASHIDS_ERROR_ALPHABET_LENGTH:
ereport(ERROR, (errcode(ERRCODE_INVALID_PARAMETER_VALUE), errmsg("alphabet is too short")));
break;
case HASHIDS_ERROR_ALPHABET_SPACE:
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("alphabet contains whitespace characters")));
break;
case HASHIDS_ERROR_INVALID_HASH:
ereport(ERROR, (errcode(ERRCODE_INVALID_PARAMETER_VALUE), errmsg("invalid hash")));
break;
default:
ereport(ERROR, (errcode(ERRCODE_EXTERNAL_ROUTINE_EXCEPTION), errmsg("unknown error")));
break;
}
}

// based on new_intArrayType contrib/intarray/_int_tool.c
static ArrayType *new_intArrayType(int num)
{
ArrayType *r;
int nbytes = ARR_OVERHEAD_NONULLS(1) + sizeof(int64) * num;
ArrayType *r;
int nbytes = ARR_OVERHEAD_NONULLS(1) + sizeof(int64) * num;

r = (ArrayType *) palloc0(nbytes);
r = (ArrayType *) palloc0(nbytes);

SET_VARSIZE(r, nbytes);
ARR_NDIM(r) = 1;
r->dataoffset = 0; /* marker for no null bitmap */
ARR_ELEMTYPE(r) = INT8OID;
ARR_DIMS(r)[0] = num;
ARR_LBOUND(r)[0] = 1;
SET_VARSIZE(r, nbytes);
ARR_NDIM(r) = 1;
r->dataoffset = 0; /* marker for no null bitmap */
ARR_ELEMTYPE(r) = INT8OID;
ARR_DIMS(r)[0] = num;
ARR_LBOUND(r)[0] = 1;

return r;
return r;
}

Datum
id_encode(PG_FUNCTION_ARGS)
{
// Declaration
int64 number;
text *hash_string;
hashids_t *hashids;

unsigned int bytes_encoded;
char *hash;

// Arguments
number = PG_GETARG_INT64(0);

if (PG_NARGS() == 2) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), 0);
} else if (PG_NARGS() == 3) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2));
} else if (PG_NARGS() == 4) {
hashids = hashids_init3(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2),
text_to_cstring(PG_GETARG_TEXT_P(3)));
} else {
hashids = hashids_init(NULL);
}
if (!hashids) {
hashids_error();
}

hash = palloc0(hashids_estimate_encoded_size(hashids, 1, (unsigned long long *) &number));
bytes_encoded = hashids_encode_one(hashids, hash, (unsigned long long) number);
hash_string = cstring_to_text_with_len(hash, bytes_encoded);

hashids_free(hashids);
pfree(hash);

PG_RETURN_TEXT_P(hash_string);
// Declaration
int64 number;
text *hash_string;
hashids_t *hashids;

unsigned int bytes_encoded;
char *hash;

// Arguments
number = PG_GETARG_INT64(0);

if (PG_NARGS() == 2) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), 0);
} else if (PG_NARGS() == 3) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2));
} else if (PG_NARGS() == 4) {
hashids = hashids_init3(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2),
text_to_cstring(PG_GETARG_TEXT_P(3)));
} else {
hashids = hashids_init(NULL);
}
if (!hashids) {
hashids_error();
}

hash = palloc0(hashids_estimate_encoded_size(hashids, 1, (unsigned long long *) &number));
bytes_encoded = hashids_encode_one(hashids, hash, (unsigned long long) number);
hash_string = cstring_to_text_with_len(hash, bytes_encoded);

hashids_free(hashids);
pfree(hash);

PG_RETURN_TEXT_P(hash_string);
}

Datum
id_encode_array(PG_FUNCTION_ARGS)
{
ArrayType *numbers;
size_t numbers_count;

// Declaration
text *hash_string;
hashids_t *hashids;

unsigned int bytes_encoded;
char *hash;

// Arguments
numbers = PG_GETARG_ARRAYTYPE_P(0);
numbers_count = ARR_DIMS(numbers)[0];

if (array_contains_nulls(numbers)) {
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("null value not allowed for array element")));

}
if (PG_NARGS() == 2) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), 0);
} else if (PG_NARGS() == 3) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2));
} else if (PG_NARGS() == 4) {
hashids = hashids_init3(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2),
text_to_cstring(PG_GETARG_TEXT_P(3)));
} else {
hashids = hashids_init(NULL);
}
if (!hashids) {
hashids_error();
}

hash = palloc0(hashids_estimate_encoded_size(hashids, numbers_count, (unsigned long long *) ARR_DATA_PTR(numbers)));
bytes_encoded = hashids_encode(hashids, hash, numbers_count, (unsigned long long *) ARR_DATA_PTR(numbers));
hash_string = cstring_to_text_with_len(hash, bytes_encoded);

hashids_free(hashids);
pfree(hash);

PG_RETURN_TEXT_P(hash_string);
ArrayType *numbers;
size_t numbers_count;

// Declaration
text *hash_string;
hashids_t *hashids;

unsigned int bytes_encoded;
char *hash;

// Arguments
numbers = PG_GETARG_ARRAYTYPE_P(0);
numbers_count = ARR_DIMS(numbers)[0];

if (array_contains_nulls(numbers)) {
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("null value not allowed for array element")));

}
if (PG_NARGS() == 2) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), 0);
} else if (PG_NARGS() == 3) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2));
} else if (PG_NARGS() == 4) {
hashids = hashids_init3(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2),
text_to_cstring(PG_GETARG_TEXT_P(3)));
} else {
hashids = hashids_init(NULL);
}
if (!hashids) {
hashids_error();
}

hash = palloc0(
hashids_estimate_encoded_size(hashids, numbers_count, (unsigned long long *) ARR_DATA_PTR(numbers)));
bytes_encoded = hashids_encode(hashids, hash, numbers_count, (unsigned long long *) ARR_DATA_PTR(numbers));
hash_string = cstring_to_text_with_len(hash, bytes_encoded);

hashids_free(hashids);
pfree(hash);

PG_RETURN_TEXT_P(hash_string);
}

Datum
id_decode(PG_FUNCTION_ARGS)
{
// Declaration
hashids_t *hashids;
int64 *numbers, *resultValues;
char *hash;
size_t numbers_count;
ArrayType *resultArray;

if (PG_NARGS() == 2) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), 0);
} else if (PG_NARGS() == 3) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2));
} else if (PG_NARGS() == 4) {
hashids = hashids_init3(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2),
text_to_cstring(PG_GETARG_TEXT_P(3)));
} else {
hashids = hashids_init(NULL);
}
if (!hashids) {
hashids_error();
}

hash = text_to_cstring(PG_GETARG_TEXT_P(0));
numbers_count = hashids_numbers_count(hashids, hash);
if (!numbers_count) {
hashids_error();
}

numbers = palloc0(numbers_count * sizeof(int64));
hashids_decode(hashids, hash, (unsigned long long *) numbers, numbers_count);

hashids_free(hashids);
pfree(hash);

resultArray = new_intArrayType(numbers_count);
resultValues = (int64 *) ARR_DATA_PTR(resultArray);
memcpy(resultValues, numbers, numbers_count * sizeof(int64));

pfree(numbers);

PG_RETURN_ARRAYTYPE_P(resultArray);
// Declaration
hashids_t *hashids;
int64 *numbers, *resultValues;
char *hash;
size_t numbers_count;
ArrayType *resultArray;

if (PG_NARGS() == 2) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), 0);
} else if (PG_NARGS() == 3) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2));
} else if (PG_NARGS() == 4) {
hashids = hashids_init3(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2),
text_to_cstring(PG_GETARG_TEXT_P(3)));
} else {
hashids = hashids_init(NULL);
}
if (!hashids) {
hashids_error();
}

hash = text_to_cstring(PG_GETARG_TEXT_P(0));
numbers_count = hashids_numbers_count(hashids, hash);
if (!numbers_count) {
hashids_error();
}

numbers = palloc0(numbers_count * sizeof(int64));
hashids_decode(hashids, hash, (unsigned long long *) numbers, numbers_count);

hashids_free(hashids);
pfree(hash);

resultArray = new_intArrayType(numbers_count);
resultValues = (int64 *) ARR_DATA_PTR(resultArray);
memcpy(resultValues, numbers, numbers_count * sizeof(int64));

pfree(numbers);

PG_RETURN_ARRAYTYPE_P(resultArray);
}

Datum
id_decode_once(PG_FUNCTION_ARGS)
{
// Declaration
hashids_t *hashids;
int64 number;
char *hash;
size_t numbers_count;

if (PG_NARGS() == 2) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), 0);
} else if (PG_NARGS() == 3) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2));
} else if (PG_NARGS() == 4) {
hashids = hashids_init3(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2),
text_to_cstring(PG_GETARG_TEXT_P(3)));
} else {
hashids = hashids_init(NULL);
}
if (!hashids) {
hashids_error();
}

hash = text_to_cstring(PG_GETARG_TEXT_P(0));
numbers_count = hashids_numbers_count(hashids, hash);
if (!numbers_count) {
hashids_error();
}

hashids_decode(hashids, hash, (unsigned long long *) &number, 1);

hashids_free(hashids);
pfree(hash);

PG_RETURN_INT64(number);
// Declaration
hashids_t *hashids;
int64 number;
char *hash;
size_t numbers_count;

if (PG_NARGS() == 2) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), 0);
} else if (PG_NARGS() == 3) {
hashids = hashids_init2(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2));
} else if (PG_NARGS() == 4) {
hashids = hashids_init3(text_to_cstring(PG_GETARG_TEXT_P(1)), PG_GETARG_INT32(2),
text_to_cstring(PG_GETARG_TEXT_P(3)));
} else {
hashids = hashids_init(NULL);
}
if (!hashids) {
hashids_error();
}

hash = text_to_cstring(PG_GETARG_TEXT_P(0));
numbers_count = hashids_numbers_count(hashids, hash);
if (!numbers_count) {
hashids_error();
}

hashids_decode(hashids, hash, (unsigned long long *) &number, 1);

hashids_free(hashids);
pfree(hash);

PG_RETURN_INT64(number);
}