test/sqlapi/Csql/Isolation/isotest10.c

   1 #include "common.h"
   2 //READ_COMMITTED isolation testing
   3 //           T1                 T2
   4 //        -------------------------
   5 //         Read
   6 //                  Update
   7 //         Read
   8 // T1 second read should fail saying "tuple not found
   9 void* runTest1(void *p);
  10 void* runTest2(void *p);
  11 int *p1RetVal = NULL;
  12 int *p2RetVal = NULL;
  13 int selectDone = 0, updateDone =0, allDone = 0;
  14
  15 int main()
  16 {
  17
  18     AbsSqlConnection *conn = createConnection();
  19     DbRetVal rv = conn->connect("root", "manager");
  20     if (rv != OK) { printf("Error during connection %d\n", rv); return 1; }
  21     AbsSqlStatement *stmt = createStatement();
  22     stmt->setConnection(conn);
  23
  24     char statement[1024]="create table t1 (f1 int, f2 char(196), primary key(f1));";
  25     int ret = executeDdlQuery(conn, stmt, statement);
  26     if (ret != 0) { return 1; }
  27     rv = conn->beginTrans(READ_COMMITTED);
  28     if (rv != OK) return 2;
  29     rv = insert(stmt, 100, false);
  30     if (rv != OK) { printf("Error in inserting the record\n"); return 3; }
  31     conn->commit();
  32     printf("Tuple inserted\n");
  33
  34     pthread_t thr[2];
  35     int *status1, *status2;
  36     pthread_create (&thr[0], NULL, &runTest1,  NULL);
  37     pthread_create (&thr[1], NULL, &runTest2,  NULL);
  38     printf("All threads started\n");
  39
  40     pthread_join(thr[0], (void**)&status1);
  41     pthread_join(thr[1], (void**)&status2);
  42     strcpy(statement, "drop table t1;");
  43     ret = executeDdlQuery(conn, stmt, statement);
  44     if (ret != 0) { return 3; }
  45     conn->disconnect();
  46     stmt->free(); delete stmt; delete conn;
  47     if (*status1 != 0 || *status2 != 0) return 4;
  48     if (p1RetVal) { delete p1RetVal; p1RetVal = NULL; }
  49     if (p2RetVal) { delete p2RetVal; p2RetVal = NULL; }
  50     return 0;
  51 }
  52
  53 void* runTest1(void *message)
  54 {
  55     AbsSqlConnection *conn = createConnection();
  56     DbRetVal rv = conn->connect("root", "manager");
  57     if (rv != OK) { printf("Error during connection %d\n", rv); return NULL; }
  58     AbsSqlStatement *stmt = createStatement();
  59     stmt->setConnection(conn);
  60     rv = conn->beginTrans(READ_COMMITTED);
  61     if (rv != OK) return NULL;
  62     printf("Thread and pid is %d %lu\n", os::getpid(), os::getthrid());
  63     p1RetVal = new int();
  64     *p1RetVal = 0;
  65
  66     rv = select(stmt, 100, true);
  67     if (rv != OK) { printf("Test Failed:first thread failed to select\n"); *p1RetVal = 1; }
  68     selectDone = 1;
  69     while (updateDone != 1) {::sleep(1); }
  70     rv = select(stmt, 100, true, true);
  71     if (rv == OK) { printf("Test Failed:first thread read succeeded \n"); *p1RetVal = 1; }
  72     allDone = 1;
  73     conn->commit();
  74     rv = conn->disconnect();
  75     stmt->free(); delete stmt; delete conn;
  76     printf("conn closed %d for Thread and pid is %d %lu\n", rv, os::getpid(), os::getthrid());
  77     pthread_exit(p1RetVal);
  78 }
  79
  80 void* runTest2(void *message)
  81 {
  82     AbsSqlConnection *conn = createConnection();
  83     DbRetVal rv = conn->connect("root", "manager");
  84     if (rv != OK) { printf("Error during connection %d\n", rv); return NULL; }
  85     AbsSqlStatement *stmt = createStatement();
  86     stmt->setConnection(conn);
  87     rv = conn->beginTrans(READ_COMMITTED);
  88     if (rv != OK) return NULL;
  89     printf("Thread and pid is %d %lu\n", os::getpid(), os::getthrid());
  90     while (selectDone != 1) {::sleep(1); }
  91     p2RetVal = new int();
  92     *p2RetVal = 0;
  93     rv = update(stmt, 100, true);
  94     if (rv != OK) {
  95         printf("Test Failed:second thread failed to update\n");
  96         *p2RetVal = 1;
  97     }
  98     updateDone = 1;
  99     while (allDone !=1) ::sleep(1);
 100     rv = conn->commit();
 101     rv = conn->disconnect();
 102     stmt->free(); delete stmt; delete conn;
 103     printf("conn closed %d for Thread and pid is %d %lu\n", rv, os::getpid(), os::getthrid());
 104     pthread_exit(p2RetVal);
 105 }