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update tindex write and search

This commit is contained in:
yihaoDeng 2021-12-22 18:03:14 +08:00
parent a655dd2e0b
commit 199eb90e0f
1 changed files with 26 additions and 1 deletions
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27
source/libs/index/src/index_tfile.c
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@ -39,6 +39,7 @@ static int tfileWriteFstOffset(TFileWriter* tw, int32_t offset);
static int tfileWriteData(TFileWriter* write, TFileValue* tval);
static int tfileReadLoadHeader(TFileReader* reader);
static int tfileReadLoadFst(TFileReader* reader);
static int tfileReadLoadTableIds(TFileReader* reader, int32_t offset, SArray* result);
static int tfileGetFileList(const char* path, SArray* result);
@ -73,9 +74,13 @@ TFileCache* tfileCacheCreate(const char* path) {
TFileReader* reader = tfileReaderCreate(wc);
if (0 != tfileReadLoadHeader(reader)) {
tfileReaderDestroy(reader);
indexError("failed to load index header, index Id: %s", file);
indexError("failed to load index header, index file: %s", file);
goto End;
}
if (0 != tfileReadLoadFst(reader)) {
tfileReaderDestroy(reader);
indexError("failed to load index fst, index file: %s", file);
}
// loader fst and validate it
TFileHeader* header = &reader->header;
@ -136,6 +141,7 @@ TFileReader* tfileReaderCreate(WriterCtx* ctx) {
void tfileReaderDestroy(TFileReader* reader) {
if (reader == NULL) { return; }
// T_REF_INC(reader);
fstDestroy(reader->fst);
writerCtxDestroy(reader->ctx);
free(reader);
}
@ -340,6 +346,25 @@ static int tfileReadLoadHeader(TFileReader* reader) {
memcpy(&reader->header, buf, sizeof(buf));
return 0;
}
static int tfileReadLoadFst(TFileReader* reader) {
// current load fst into memory, refactor it later
static int FST_MAX_SIZE = 16 * 1024;
char* buf = calloc(1, sizeof(char) * FST_MAX_SIZE);
if (buf == NULL) { return -1; }
WriterCtx* ctx = reader->ctx;
int32_t nread = ctx->readFrom(ctx, buf, FST_MAX_SIZE, reader->header.fstOffset);
// we assuse fst size less than FST_MAX_SIZE
assert(nread > 0 && nread < FST_MAX_SIZE);
FstSlice st = fstSliceCreate((uint8_t*)buf, nread);
reader->fst = fstCreate(&st);
free(buf);
fstSliceDestroy(&st);
return reader->fst == NULL ? 0 : -1;
}
static int tfileReadLoadTableIds(TFileReader* reader, int32_t offset, SArray* result) {
int32_t nid;
WriterCtx* ctx = reader->ctx;