TD-34

src/common/inc/dataformat.h

@@ -106,6 +106,7 @@ SDataRow tdDataRowDup(SDataRow row);
 // ----------------- Data column structure
 typedef struct SDataCol {
   int8_t  type;
+  int16_t colId;
   int     bytes;
   int     len;
   int     offset;
@@ -122,9 +123,9 @@ typedef struct {
   SDataCol cols[];
 } SDataCols;
 
-#define keyCol(cols) (&((cols)->cols[0])) // Key column
-#define dataColsKeyFirst(cols) ((int64_t *)(keyCol(cols)->pData))[0]
-#define dataColsKeyLast(cols) ((int64_t *)(keyCol(cols)->pData))[(cols)->numOfPoints - 1]
+#define keyCol(pCols) (&((pCols)->cols[0]))  // Key column
+#define dataColsKeyFirst(pCols) ((int64_t *)(keyCol(pCols)->pData))[0]
+#define dataColsKeyLast(pCols) ((int64_t *)(keyCol(pCols)->pData))[(pCols)->numOfPoints - 1]
 
 SDataCols *tdNewDataCols(int maxRowSize, int maxCols, int maxRows);
 void       tdResetDataCols(SDataCols *pCols);

src/common/src/dataformat.c

@@ -324,6 +324,7 @@ void tdInitDataCols(SDataCols *pCols, STSchema *pSchema) {
     pCols->cols[i].type = colType(schemaColAt(pSchema, i));
     pCols->cols[i].bytes = colBytes(schemaColAt(pSchema, i));
     pCols->cols[i].offset = colOffset(schemaColAt(pSchema, i));
+    pCols->cols[i].colId = colColId(schemaColAt(pSchema, i));
   }
 
   return pCols;

src/util/inc/tutil.h

@@ -176,6 +176,14 @@ uint32_t ip2uint(const char *const ip_addr);
 void taosSetAllocMode(int mode, const char* path, bool autoDump);
 void taosDumpMemoryLeak();
 
+#define TD_EQ 0x1
+#define TD_GT 0x2
+#define TD_LT 0x4
+#define TD_GE (TD_EQ | TD_GT)
+#define TD_LE (TD_EQ | TD_LT)
+void *taosbsearch(const void *key, const void *base, size_t nmemb, size_t size,
+                  int (*compar)(const void *, const void *), int flags);
+
 #ifdef TAOS_MEM_CHECK
 
 void *  taos_malloc(size_t size, const char *file, uint32_t line);

src/util/src/tutil.c

@@ -617,3 +617,72 @@ char *taosCharsetReplace(char *charsetstr) {
 
   return strdup(charsetstr);
 }
+
+#define elePtrAt(base, size, idx) (void *)((char *)(base) + (size) * (idx))
+void * taosbsearch(const void *key, const void *base, size_t nmemb, size_t size, int (*compar)(const void *, const void *), int flags) {
+  // TODO: need to check the correctness of this function
+  int l = 0;
+  int r = nmemb;
+  int idx = 0;
+  int comparison;
+
+  if (flags == TD_EQ) {
+    return bsearch(key, base, nmemb, size, compar);
+  } else if (flags == TD_GE) {
+    if ((*compar)(key, elePtrAt(base, size, 0)) <= 0) return elePtrAt(base, size, 0);
+    if ((*compar)(key, elePtrAt(base, size, nmemb - 1)) > 0) return NULL;
+
+    while (l < r) {
+      idx = (l + r) / 2;
+      comparison = (*compar)(key, elePtrAt(base, size, idx));
+      if (comparison < 0) {
+        r = idx;
+      } else if (comparison > 0) {
+        l = idx + 1;
+      } else {
+        return elePtrAt(base, size, idx);
+      }
+    }
+
+    if ((*compar)(key, elePtrAt(base, size, idx) < 0)) {
+      return elePtrAt(base, size, idx);
+    } else {
+      if (idx + 1 > nmemb - 1) {
+        return NULL;
+      } else {
+        return elePtrAt(base, size, idx + 1);
+      }
+    }
+  } else if (flags == TD_LE) {
+    if ((*compar)(key, elePtrAt(base, size, nmemb - 1)) >= 0) return elePtrAt(base, size, nmemb - 1);
+    if ((*compar)(key, elePtrAt(base, size, 0)) < 0) return NULL;
+
+    while (l < r) {
+      idx = (l + r) / 2;
+      comparison = (*compar)(key, elePtrAt(base, size, idx));
+      if (comparison < 0) {
+        r = idx;
+      } else if (comparison > 0) {
+        l = idx + 1;
+      } else {
+        return elePtrAt(base, size, idx);
+      }
+    }
+
+    if ((*compar)(key, elePtrAt(base, size, idx)) > 0) {
+      return elePtrAt(base, size, idx);
+    } else {
+      if (idx == 0) {
+        return NULL;
+      } else {
+        return elePtrAt(base, size, idx - 1);
+      }
+    }
+
+  } else {
+    assert(0);
+    return NULL;
+  }
+
+  return NULL;
+}

src/vnode/tsdb/inc/tsdbFile.h

@@ -17,6 +17,7 @@
 
 #include <stdint.h>
 
+#include "dataformat.h"
 #include "taosdef.h"
 #include "tglobalcfg.h"
 
@@ -69,19 +70,25 @@ typedef struct {
 STsdbFileH *tsdbInitFileH(char *dataDir, int maxFiles);
 void        tsdbCloseFileH(STsdbFileH *pFileH);
 int         tsdbCreateFGroup(STsdbFileH *pFileH, char *dataDir, int fid, int maxTables);
+int         tsdbOpenFile(SFile *pFile, int oflag);
+SFileGroup *tsdbOpenFilesForCommit(STsdbFileH *pFileH, int fid);
 int         tsdbRemoveFileGroup(STsdbFileH *pFile, int fid);
 
 typedef struct {
   int32_t len;
-  int32_t padding;  // For padding purpose
-  int64_t offset;
-} SCompIdx;
+  int32_t offset;
+  int32_t hasLast : 1;
+  int32_t numOfSuperBlocks : 31;
+  int32_t checksum;
+  TSKEY   maxKey;
+} SCompIdx; /* sizeof(SCompIdx) = 24 */
 
 /**
- * if numOfSubBlocks == -1, then the SCompBlock is a sub-block
- * if numOfSubBlocks == 1, then the SCompBlock refers to the data block, and offset/len refer to
+ * if numOfSubBlocks == 0, then the SCompBlock is a sub-block
+ * if numOfSubBlocks >= 1, then the SCompBlock is a super-block
+ *    - if numOfSubBlocks == 1, then the SCompBlock refers to the data block, and offset/len refer to
  *      the data block offset and length
- * if numOfSubBlocks > 1, then the offset/len refer to the offset of the first sub-block in the
+ *    - if numOfSubBlocks > 1, then the offset/len refer to the offset of the first sub-block in the
  *      binary
  */
 typedef struct {
@@ -101,11 +108,12 @@ typedef struct {
   int32_t    delimiter;  // For recovery usage
   int32_t    checksum;   // TODO: decide if checksum logic in this file or make it one API
   int64_t    uid;
-  int32_t    padding;      // For padding purpose
-  int32_t    numOfBlocks;  // TODO: make the struct padding
   SCompBlock blocks[];
 } SCompInfo;
 
+int tsdbLoadCompIdx(SFileGroup *pGroup, void *buf, int maxTables);
+int tsdbLoadCompBlocks(SFileGroup *pGroup, SCompIdx *pIdx, void *buf);
+
 // TODO: take pre-calculation into account
 typedef struct {
   int16_t colId;  // Column ID
@@ -122,6 +130,8 @@ typedef struct {
   SCompCol cols[];
 } SCompData;
 
+int tsdbWriteBlockToFile(SFileGroup *pGroup, SCompInfo *pCompInfo, SCompIdx *pIdx, int isMerge, SCompBlock *pBlock, SDataCols *pCols);
+
 void tsdbGetKeyRangeOfFileId(int32_t daysPerFile, int8_t precision, int32_t fileId, TSKEY *minKey, TSKEY *maxKey);
 #ifdef __cplusplus
 }

src/vnode/tsdb/src/tsdbFile.c

@@ -39,6 +39,7 @@ static int tsdbGetFileName(char *dataDir, int fileId, int8_t type, char *fname);
 static int tsdbCreateFile(char *dataDir, int fileId, int8_t type, int maxTables, SFile *pFile);
 static int tsdbWriteFileHead(SFile *pFile);
 static int tsdbWriteHeadFileIdx(SFile *pFile, int maxTables);
+static SFileGroup *tsdbSearchFGroup(STsdbFileH *pFileH, int fid);
 
 STsdbFileH *tsdbInitFileH(char *dataDir, int maxFiles) {
   STsdbFileH *pFileH = (STsdbFileH *)calloc(1, sizeof(STsdbFileH) + sizeof(SFileGroup) * maxFiles);
@@ -70,9 +71,7 @@ int tsdbCreateFGroup(STsdbFileH *pFileH, char *dataDir, int fid, int maxTables)
 
   SFileGroup  fGroup;
   SFileGroup *pFGroup = &fGroup;
-  if (fid < TSDB_MIN_FILE_ID(pFileH) || fid > TSDB_MAX_FILE_ID(pFileH) ||
-      bsearch((void *)&fid, (void *)(pFileH->fGroup), pFileH->numOfFGroups, sizeof(SFileGroup), compFGroupKey) ==
-          NULL) {
+  if (tsdbSearchFGroup(pFileH, fid) == NULL) {
     pFGroup->fileId = fid;
     for (int type = TSDB_FILE_TYPE_HEAD; type < TSDB_FILE_TYPE_MAX; type++) {
       if (tsdbCreateFile(dataDir, fid, type, maxTables, &(pFGroup->files[type])) < 0) {
@@ -107,6 +106,86 @@ int tsdbRemoveFileGroup(STsdbFileH *pFileH, int fid) {
   return 0;
 }
 
+int tsdbLoadCompIdx(SFileGroup *pGroup, void *buf, int maxTables) {
+  SFile *pFile = &(pGroup->files[TSDB_FILE_TYPE_HEAD]);
+  if (lseek(pFile->fd, TSDB_FILE_HEAD_SIZE, SEEK_SET) < 0) return -1;
+
+  if (read(pFile->fd, buf, sizeof(SCompIdx) * maxTables) < 0) return -1;
+  // TODO: need to check the correctness
+  return 0;
+}
+
+int tsdbLoadCompBlocks(SFileGroup *pGroup, SCompIdx *pIdx, void *buf) {
+  SFile *pFile = &(pGroup->files[TSDB_FILE_TYPE_HEAD]);
+
+  if (lseek(pFile->fd, pIdx->offset, SEEK_SET) < 0) return -1;
+
+  if (read(pFile->fd, buf, pIdx->len) < 0) return -1;
+
+  // TODO: need to check the correctness
+
+  return 0;
+}
+
+static int tsdbWriteBlockToFileImpl(SFile *     pFile,              // File to write
+                                    SDataCols * pCols,              // Data column buffer
+                                    int         numOfPointsToWrie,  // Number of points to write to the file
+                                    SCompBlock *pBlock              // SCompBlock to hold block information to return
+                                    ) {
+  // pBlock->last = 0;
+  // pBlock->offset = lseek(pFile->fd, 0, SEEK_END);
+  // // pBlock->algorithm = ;
+  // pBlock->numOfPoints = pCols->numOfPoints;
+  // // pBlock->sversion = ;
+  // // pBlock->len = ;
+  // pBlock->numOfSubBlocks = 1;
+  // pBlock->keyFirst = dataColsKeyFirst(pCols);
+  // pBlock->keyLast = dataColsKeyLast(pCols);
+  // for (int i = 0; i < pCols->numOfCols; i++) {
+  //   // TODO: if all col value is NULL, do not save it
+  //   pBlock->numOfCols++;
+  //   pCompData->numOfCols++;
+  //   SCompCol *pCompCol = pCompData->cols + i;
+  //   pCompCol->colId = pCols->cols[i].colId;
+  //   pCompCol->type = pCols->cols[i].type;
+
+  //   // pCompCol->len = ;
+  //   // pCompCol->offset = ;
+  // }
+
+  return 0;
+}
+
+int tsdbWriteBlockToFile(SFileGroup *pGroup, SCompInfo *pCompInfo, SCompIdx *pIdx, int isMerge, SCompBlock *pBlock, SDataCols *pCols) {
+  memset((void *)pBlock, 0, sizeof(SCompBlock));
+  SFile *pFile = NULL;
+  SCompData *pCompData = (SCompData *)malloc(sizeof(SCompData) + sizeof(SCompCol) * pCols->numOfCols);
+  if (pCompData == NULL) return -1;
+  pCompData->delimiter = TSDB_FILE_DELIMITER;
+  // pCompData->uid = ;
+
+  if (isMerge) {
+    TSKEY keyFirst = dataColsKeyFirst(pCols);
+    // 1. Binary search the block the data can merged into
+
+    if (1/* the data should only merged into last file */) {
+    } else {
+    }
+  } else {
+    // Write directly to the file without merge
+    if (1/*pCols->numOfPoints < pCfg->minRowsPerFileBlock*/) {
+      // TODO: write the data to the last file
+    } else {
+      // TODO: wirte the data to the data file
+    }
+  }
+
+  // TODO: need to update pIdx
+
+  if (pCompData) free(pCompData);
+  return 0;
+}
+
 static int compFGroupKey(const void *key, const void *fgroup) {
   int         fid = *(int *)key;
   SFileGroup *pFGroup = (SFileGroup *)fgroup;
@@ -158,7 +237,7 @@ static int tsdbGetFileName(char *dataDir, int fileId, int8_t type, char *fname)
   return 0;
 }
 
-static int tsdbOpenFileForWrite(SFile *pFile, int oflag) { // TODO: change the function
+int tsdbOpenFile(SFile *pFile, int oflag) { // TODO: change the function
   if (TSDB_IS_FILE_OPENED(pFile)) return -1;
 
   pFile->fd = open(pFile->fname, oflag, 0755);
@@ -167,6 +246,16 @@ static int tsdbOpenFileForWrite(SFile *pFile, int oflag) { // TODO: change the f
   return 0;
 }
 
+SFileGroup * tsdbOpenFilesForCommit(STsdbFileH *pFileH, int fid) {
+  SFileGroup *pGroup = tsdbSearchFGroup(pFileH, fid);
+  if (pGroup == NULL) return NULL;
+
+  for (int type = TSDB_FILE_TYPE_HEAD; type < TSDB_FILE_TYPE_MAX; type++) {
+    tsdbOpenFile(&(pGroup->files[type]), O_RDWR);
+  }
+  return pGroup;
+}
+
 static int tsdbCloseFile(SFile *pFile) {
   if (!TSDB_IS_FILE_OPENED(pFile)) return -1;
   int ret = close(pFile->fd);
@@ -186,7 +275,7 @@ static int tsdbCreateFile(char *dataDir, int fileId, int8_t type, int maxTables,
     return -1;
   }
 
-  if (tsdbOpenFileForWrite(pFile, O_WRONLY | O_CREAT) < 0) {
+  if (tsdbOpenFile(pFile, O_WRONLY | O_CREAT) < 0) {
     // TODO: deal with the ERROR here
     return -1;
   }
@@ -213,3 +302,11 @@ void tsdbGetKeyRangeOfFileId(int32_t daysPerFile, int8_t precision, int32_t file
   *minKey = fileId * daysPerFile * tsMsPerDay[precision];
   *maxKey = *minKey + daysPerFile * tsMsPerDay[precision] - 1;
 }
+
+static SFileGroup *tsdbSearchFGroup(STsdbFileH *pFileH, int fid) {
+  if (pFileH->numOfFGroups == 0 || fid < pFileH->fGroup[0].fileId || fid > pFileH->fGroup[pFileH->numOfFGroups - 1].fileId)
+    return NULL;
+  void *ptr = bsearch((void *)&fid, (void *)(pFileH->fGroup), pFileH->numOfFGroups, sizeof(SFileGroup), compFGroupKey);
+  if (ptr == NULL) return NULL;
+  return (SFileGroup *)ptr;
+}
\ No newline at end of file

src/vnode/tsdb/src/tsdbMain.c

@@ -764,6 +764,7 @@ static int32_t tsdbInsertDataToTable(tsdb_repo_t *repo, SSubmitBlk *pBlock) {
 
 static int tsdbReadRowsFromCache(SSkipListIterator *pIter, TSKEY maxKey, int maxRowsToRead, SDataCols *pCols) {
   int numOfRows = 0;
+
   do {
     SSkipListNode *node = tSkipListIterGet(pIter);
     if (node == NULL) break;
@@ -776,6 +777,7 @@ static int tsdbReadRowsFromCache(SSkipListIterator *pIter, TSKEY maxKey, int max
     numOfRows++;
     if (numOfRows > maxRowsToRead) break;
   } while (tSkipListIterNext(pIter));
+
   return numOfRows;
 }
 
@@ -865,24 +867,122 @@ static void *tsdbCommitData(void *arg) {
 }
 
 static int tsdbCommitToFile(STsdbRepo *pRepo, int fid, SSkipListIterator **iters, SDataCols *pCols) {
+  int flag = 0;
+
   STsdbMeta * pMeta = pRepo->tsdbMeta;
   STsdbFileH *pFileH = pRepo->tsdbFileH;
   STsdbCfg *  pCfg = &pRepo->config;
+  SFile       tFile, lFile;
+  SFileGroup *pGroup = NULL;
+  SCompIdx *  pIndices = NULL;
+  SCompInfo * pCompInfo = NULL;
+  size_t      compInfoSize = 0;
+  SCompBlock  compBlock;
+  SCompBlock *pBlock = &compBlock;
+
   TSKEY minKey = 0, maxKey = 0;
   tsdbGetKeyRangeOfFileId(pCfg->daysPerFile, pCfg->precision, fid, &minKey, &maxKey);
 
   for (int tid = 0; tid < pCfg->maxTables; tid++) {
-    STable *pTable = pMeta->tables[tid];
+    STable *           pTable = pMeta->tables[tid];
     SSkipListIterator *pIter = iters[tid];
+    int isLoadCompBlocks = 0;
 
     if (pIter == NULL) continue;
     tdInitDataCols(pCols, pTable->schema);
 
-    while (tsdbReadRowsFromCache(pIter, maxKey, pCfg->maxRowsPerFileBlock, pCols)) {
+    int numOfWrites = 0;
+    // while (tsdbReadRowsFromCache(pIter, maxKey, pCfg->maxRowsPerFileBlock, pCols)) {
+    //   break;
+    //   if (!flag) {
+    //     // There are data to commit to this file, we need to create/open it for read/write.
+    //     // At the meantime, we set the flag to prevent further create/open operations
+    //     if (tsdbCreateFGroup(pFileH, pRepo->rootDir, fid, pCfg->maxTables) < 0) {
+    //       // TODO: deal with the ERROR here
+    //     }
+    //     // Open files for commit
+    //     pGroup = tsdbOpenFilesForCommit(pFileH, fid);
+    //     if (pGroup == NULL) {
+    //       // TODO: deal with the ERROR here
+    //     }
+    //     // TODO: open .h file and if neccessary, open .l file
+    //     {}
+    //     pIndices = (SCompIdx *)malloc(sizeof(SCompIdx) * pCfg->maxTables);
+    //     if (pIndices == NULL) {
+    //       // TODO: deal with the ERROR
+    //     }
+    //     // load the SCompIdx part
+    //     if (tsdbLoadCompIdx(pGroup, (void *)pIndices, pCfg->maxTables) < 0) {
+    //       // TODO: deal with the ERROR here
+    //     }
+
+    //     // TODO: sendfile those not need changed table content
+    //     for (int ttid = 0; ttid < tid; ttid++) {
+    //       // SCompIdx *pIdx = &pIndices[ttid];
+    //       // if (pIdx->len > 0) {
+    //       //   lseek(pGroup->files[TSDB_FILE_TYPE_HEAD].fd, pIdx->offset, 0, SEEK_CUR);
+    //       //   sendfile(fd, pGroup->files[TSDB_FILE_TYPE_HEAD].fd, NULL, pIdx->len);
+    //       // }
+    //     }
+    //     flag = 1;
+    //   }
+
+    //   SCompIdx *pIdx = &pIndices[tid];
+
+    //   /* The first time to write to the table, need to decide
+    //    * if it is neccessary to load the SComplock part. If it
+    //    * is needed, just load it, or, just use sendfile and
+    //    * append it.
+    //    */
+    //   if (numOfWrites == 0 && pIdx->offset > 0) {
+    //     if (dataColsKeyFirst(pCols) <= pIdx->maxKey || pIdx->hasLast) {
+    //       pCompInfo = (SCompInfo *)realloc((void *)pCompInfo, pIdx->len);
+    //       if (tsdbLoadCompBlocks(pGroup, pIdx, (void *)pCompInfo) < 0) {
+    //         // TODO: deal with the ERROR here
+    //       }
+    //       if (pCompInfo->uid == pTable->tableId.uid) isLoadCompBlocks = 1;
+    //     } else {
+    //       // TODO: sendfile the prefix part
+    //     }
+    //   }
+
+    //   // if (tsdbWriteBlockToFile(pGroup, pCompInfo, pIdx, isLoadCompBlocks, pBlock, pCols) < 0) {
+    //   //   // TODO: deal with the ERROR here
+    //   // }
+
+    //   // pCompInfo = tsdbMergeBlock(pCompInfo, pBlock);
+
+
+    //   // if (1 /* the SCompBlock part is not loaded*/) {
+    //   //   // Append to .data file generate a SCompBlock and record it
+    //   // } else {
+    //   // }
+
+    //   // // TODO: need to reset the pCols
+
+    //   numOfWrites++;
+    // }
+
+    // if (pCols->numOfPoints > 0) { 
+    //   // TODO: still has data to commit, commit it
+    // }
+
+    // if (1/* SCompBlock part is loaded, write it to .head file*/) {
+    //   // TODO
+    // } else {
+    //   // TODO: use sendfile send the old part and append the newly added part
+    // }
+  }
+
+  // Write the SCompIdx part
+
+  // Close all files and return 
+  if (flag) {
     // TODO
-      int k = 0;
-    }
   }
 
+  if (pIndices) free(pIndices);
+  if (pCompInfo) free(pCompInfo);
+
   return 0;
 }
\ No newline at end of file