void
Freezer_serialize_blob(Blob *blob, OutStream *outstream) {
size_t size = Blob_Get_Size(blob);
if (size > INT32_MAX) {
THROW(ERR, "Can't serialize blob above 2GB: %u64", (uint64_t)size);
}
OutStream_Write_CU64(outstream, size);
OutStream_Write_Bytes(outstream, Blob_Get_Buf(blob), size);
}
static TermVector*
S_extract_tv_from_tv_buf(String *field, String *term_text, Blob *tv_buf) {
TermVector *retval = NULL;
const char *posdata = Blob_Get_Buf(tv_buf);
const char *posdata_end = posdata + Blob_Get_Size(tv_buf);
int32_t *positions = NULL;
int32_t *starts = NULL;
int32_t *ends = NULL;
uint32_t num_pos = 0;
if (posdata != posdata_end) {
num_pos = NumUtil_decode_cu32(&posdata);
positions = (int32_t*)MALLOCATE(num_pos * sizeof(int32_t));
starts = (int32_t*)MALLOCATE(num_pos * sizeof(int32_t));
ends = (int32_t*)MALLOCATE(num_pos * sizeof(int32_t));
}
// Expand CI32s.
for (uint32_t i = 0; i < num_pos; i++) {
positions[i] = NumUtil_decode_ci32(&posdata);
starts[i] = NumUtil_decode_ci32(&posdata);
ends[i] = NumUtil_decode_ci32(&posdata);
}
if (posdata != posdata_end) {
THROW(ERR, "Bad encoding of posdata");
}
else {
I32Array *posits_map = I32Arr_new_steal(positions, num_pos);
I32Array *starts_map = I32Arr_new_steal(starts, num_pos);
I32Array *ends_map = I32Arr_new_steal(ends, num_pos);
retval = TV_new(field, term_text, posits_map, starts_map, ends_map);
DECREF(posits_map);
DECREF(starts_map);
DECREF(ends_map);
}
return retval;
}
static Hash*
S_extract_tv_cache(Blob *field_buf) {
Hash *tv_cache = Hash_new(0);
const char *tv_string = Blob_Get_Buf(field_buf);
int32_t num_terms = NumUtil_decode_ci32(&tv_string);
ByteBuf *text_buf = BB_new(0);
// Read the number of highlightable terms in the field.
for (int32_t i = 0; i < num_terms; i++) {
size_t overlap = NumUtil_decode_cu32(&tv_string);
size_t len = NumUtil_decode_cu32(&tv_string);
// Decompress the term text.
BB_Set_Size(text_buf, overlap);
BB_Cat_Bytes(text_buf, tv_string, len);
tv_string += len;
// Get positions & offsets string.
const char *bookmark_ptr = tv_string;
int32_t num_positions = NumUtil_decode_ci32(&tv_string);
while (num_positions--) {
// Leave nums compressed to save a little mem.
NumUtil_skip_cint(&tv_string);
NumUtil_skip_cint(&tv_string);
NumUtil_skip_cint(&tv_string);
}
len = tv_string - bookmark_ptr;
// Store the $text => $posdata pair in the output hash.
String *text = BB_Trusted_Utf8_To_String(text_buf);
Hash_Store(tv_cache, text, (Obj*)Blob_new(bookmark_ptr, len));
DECREF(text);
}
DECREF(text_buf);
return tv_cache;
}
void
Freezer_serialize_blob(Blob *blob, OutStream *outstream) {
size_t size = Blob_Get_Size(blob);
OutStream_Write_C32(outstream, size);
OutStream_Write_Bytes(outstream, Blob_Get_Buf(blob), size);
}
void
DocWriter_Add_Inverted_Doc_IMP(DocWriter *self, Inverter *inverter,
int32_t doc_id) {
DocWriterIVARS *const ivars = DocWriter_IVARS(self);
OutStream *dat_out = S_lazy_init(self);
OutStream *ix_out = ivars->ix_out;
uint32_t num_stored = 0;
int64_t start = OutStream_Tell(dat_out);
int64_t expected = OutStream_Tell(ix_out) / 8;
// Verify doc id.
if (doc_id != expected) {
THROW(ERR, "Expected doc id %i64 but got %i32", expected, doc_id);
}
// Write the number of stored fields.
Inverter_Iterate(inverter);
while (Inverter_Next(inverter)) {
FieldType *type = Inverter_Get_Type(inverter);
if (FType_Stored(type)) { num_stored++; }
}
OutStream_Write_CU32(dat_out, num_stored);
Inverter_Iterate(inverter);
while (Inverter_Next(inverter)) {
// Only store fields marked as "stored".
FieldType *type = Inverter_Get_Type(inverter);
if (FType_Stored(type)) {
String *field = Inverter_Get_Field_Name(inverter);
Obj *value = Inverter_Get_Value(inverter);
Freezer_serialize_string(field, dat_out);
switch (FType_Primitive_ID(type) & FType_PRIMITIVE_ID_MASK) {
case FType_TEXT: {
const char *buf = Str_Get_Ptr8((String*)value);
size_t size = Str_Get_Size((String*)value);
if (size > INT32_MAX) {
THROW(ERR, "Field %o over 2GB: %u64", field,
(uint64_t)size);
}
OutStream_Write_CU32(dat_out, (uint32_t)size);
OutStream_Write_Bytes(dat_out, buf, size);
break;
}
case FType_BLOB: {
const char *buf = Blob_Get_Buf((Blob*)value);
size_t size = Blob_Get_Size((Blob*)value);
if (size > INT32_MAX) {
THROW(ERR, "Field %o over 2GB: %u64", field,
(uint64_t)size);
}
OutStream_Write_CU32(dat_out, (uint32_t)size);
OutStream_Write_Bytes(dat_out, buf, size);
break;
}
case FType_INT32: {
int32_t val = (int32_t)Int_Get_Value((Integer*)value);
OutStream_Write_CI32(dat_out, val);
break;
}
case FType_INT64: {
int64_t val = Int_Get_Value((Integer*)value);
OutStream_Write_CI64(dat_out, val);
break;
}
case FType_FLOAT32: {
float val = (float)Float_Get_Value((Float*)value);
OutStream_Write_F32(dat_out, val);
break;
}
case FType_FLOAT64: {
double val = Float_Get_Value((Float*)value);
OutStream_Write_F64(dat_out, val);
break;
}
default:
THROW(ERR, "Unrecognized type: %o", type);
}
}
}
// Write file pointer.
OutStream_Write_I64(ix_out, start);
}
static void
S_write_val(Obj *val, int8_t prim_id, OutStream *ix_out, OutStream *dat_out,
int64_t dat_start) {
if (val) {
switch (prim_id & FType_PRIMITIVE_ID_MASK) {
case FType_TEXT: {
String *string = (String*)val;
int64_t dat_pos = OutStream_Tell(dat_out) - dat_start;
OutStream_Write_I64(ix_out, dat_pos);
OutStream_Write_Bytes(dat_out, Str_Get_Ptr8(string),
Str_Get_Size(string));
break;
}
case FType_BLOB: {
Blob *blob = (Blob*)val;
int64_t dat_pos = OutStream_Tell(dat_out) - dat_start;
OutStream_Write_I64(ix_out, dat_pos);
OutStream_Write_Bytes(dat_out, Blob_Get_Buf(blob),
Blob_Get_Size(blob));
break;
}
case FType_INT32: {
int32_t i32 = (int32_t)Int_Get_Value((Integer*)val);
OutStream_Write_I32(dat_out, i32);
break;
}
case FType_INT64: {
int64_t i64 = Int_Get_Value((Integer*)val);
OutStream_Write_I64(dat_out, i64);
break;
}
case FType_FLOAT32: {
float f32 = (float)Float_Get_Value((Float*)val);
OutStream_Write_F32(dat_out, f32);
break;
}
case FType_FLOAT64: {
double f64 = Float_Get_Value((Float*)val);
OutStream_Write_F64(dat_out, f64);
break;
}
default:
THROW(ERR, "Unrecognized primitive id: %i32", (int32_t)prim_id);
}
}
else {
switch (prim_id & FType_PRIMITIVE_ID_MASK) {
case FType_TEXT:
case FType_BLOB: {
int64_t dat_pos = OutStream_Tell(dat_out) - dat_start;
OutStream_Write_I64(ix_out, dat_pos);
}
break;
case FType_INT32:
OutStream_Write_I32(dat_out, 0);
break;
case FType_INT64:
OutStream_Write_I64(dat_out, 0);
break;
case FType_FLOAT64:
OutStream_Write_F64(dat_out, 0.0);
break;
case FType_FLOAT32:
OutStream_Write_F32(dat_out, 0.0f);
break;
default:
THROW(ERR, "Unrecognized primitive id: %i32", (int32_t)prim_id);
}
}
}
