add lseek random failure.

src/query/src/qExecutor.c

@@ -27,6 +27,7 @@
 #include "exception.h"
 #include "tscompression.h"
 #include "ttime.h"
+#include "tfile.h"
 
 /**
  * check if the primary column is load by default, otherwise, the program will

src/tsdb/src/tsdbFile.c

@@ -28,6 +28,7 @@
 #include "tsdbMain.h"
 #include "tutil.h"
 #include "ttime.h"
+#include "tfile.h"
 
 const char *tsdbFileSuffix[] = {".head", ".data", ".last", "", ".h", ".l"};
 

src/tsdb/src/tsdbRWHelper.c

@@ -19,6 +19,7 @@
 #include "tcoding.h"
 #include "tscompression.h"
 #include "tsdbMain.h"
+#include "tfile.h"
 
 #define TSDB_GET_COMPCOL_LEN(nCols) (sizeof(SCompData) + sizeof(SCompCol) * (nCols) + sizeof(TSCKSUM))
 

src/util/inc/tfile.h

@@ -20,9 +20,11 @@
 
 ssize_t taos_tread(int fd, void *buf, size_t count);
 ssize_t taos_twrite(int fd, void *buf, size_t count);
+off_t taos_lseek(int fd, off_t offset, int whence);
 
 #define tread(fd, buf, count)  taos_tread(fd, buf, count)
 #define twrite(fd, buf, count)  taos_twrite(fd, buf, count)
+#define lseek(fd, offset, whence)  taos_lseek(fd, offset, whence)
 
 #endif  // TAOS_RANDOM_FILE_FAIL
 

src/util/src/tfile.c

@@ -51,3 +51,15 @@ ssize_t taos_twrite(int fd, void *buf, size_t count)
 
   return twrite(fd, buf, count);
 }
+
+off_t taos_lseek(int fd, off_t offset, int whence)
+{
+#ifdef TAOS_RANDOM_FILE_FAIL
+  if (rand() % RANDOM_FACTOR == 0) {
+    errno = EIO;
+    return -1;
+  }
+#endif
+
+  return lseek(fd, offset, whence);
+}

src/util/src/tkvstore.c

@@ -27,6 +27,7 @@
 #include "tcoding.h"
 #include "tkvstore.h"
 #include "tulog.h"
+#include "tfile.h"
 
 #define TD_KVSTORE_HEADER_SIZE 512
 #define TD_KVSTORE_MAJOR_VERSION 1