test/dbapi/Connection/isotest30.c

   1 #include "common.h"
   2 //READ_REPEATABLE isolation testing
   3 //           T1                 T2
   4 //        -------------------------
   5 //         Read
   6 //                              Update
   7 //         Read
   8 // T1 should fail to get read lock
   9 void* runTest1(void *p);
  10 void* runTest2(void *p);
  11 int *p1RetVal = NULL;
  12 int *p2RetVal = NULL;
  13 int selectDone =0, updateDone=0, select2Done=0;
  14 int main()
  15 {
  16
  17     Connection conn;
  18     DbRetVal rv = conn.open("root", "manager");
  19     if (rv != OK) { printf("Error during connection %d\n", rv); return 1; }
  20     DatabaseManager *dbMgr = conn.getDatabaseManager();
  21     int ret = createTable(dbMgr);
  22     if (ret != 0) { return 1; }
  23
  24     rv = conn.startTransaction();
  25     if (rv != OK) {printf ("Unable to start trans\n"); return 1; }
  26     rv = insert(dbMgr, 100, false);
  27     if (rv != OK) { printf("Unable to insert\n"); return 2; }
  28     conn.commit();
  29     printf("Tuple inserted\n");
  30
  31     pthread_t thr[2];
  32     int *status1, *status2;
  33     pthread_create (&thr[0], NULL, &runTest1,  NULL);
  34     pthread_create (&thr[1], NULL, &runTest2,  NULL);
  35     printf("All threads started\n");
  36
  37     pthread_join(thr[0], (void**)&status1);
  38     pthread_join(thr[1], (void**)&status2);
  39     ret = 0;
  40     if (*status1 != 0 || *status2 != 0) ret = 1;
  41     dbMgr->dropTable("t1");
  42     conn.close();
  43     if (p1RetVal) { delete p1RetVal; p1RetVal = NULL; }
  44     if (p2RetVal) { delete p2RetVal; p2RetVal = NULL; }
  45     return ret;
  46 }
  47 void* runTest1(void *message)
  48 {
  49     Connection conn;
  50     DbRetVal rv = conn.open("root", "manager");
  51     if (rv != OK) { printf("Error during connection %d\n", rv); return NULL; }
  52     DatabaseManager *dbMgr = conn.getDatabaseManager();
  53     if (dbMgr == NULL) { printf("Auth failed\n"); return NULL;}
  54     rv = conn.startTransaction(READ_REPEATABLE);
  55     if (rv != OK) return NULL;
  56     printf("Thread and pid is %d %lu\n", os::getpid(), os::getthrid());
  57     p1RetVal = new int();
  58     *p1RetVal = 0;
  59     rv = select(dbMgr, 100, true);
  60     if (rv != OK) { printf("Test Failed:first thread first read failed \n"); *p1RetVal = 1; }
  61     selectDone = 1;
  62     while (updateDone !=1) ::sleep(1);
  63     rv = select(dbMgr, 100, true, false);
  64     if (rv != OK) { printf("Test Failed:first thread second read failed %d \n", rv); *p1RetVal = 1; }
  65     select2Done=1;
  66     conn.commit();
  67     rv  = conn.close();
  68     pthread_exit(p1RetVal);
  69 }
  70 void* runTest2(void *message)
  71 {
  72     os::sleep(1);
  73     Connection conn;
  74     DbRetVal rv = conn.open("root", "manager");
  75     if (rv != OK) { printf("Error during connection %d\n", rv); return NULL; }
  76     DatabaseManager *dbMgr = conn.getDatabaseManager();
  77     if (dbMgr == NULL) { printf("Auth failed\n"); return NULL;}
  78     rv = conn.startTransaction(READ_REPEATABLE);
  79     if (rv != OK) return NULL;
  80     printf("Thread and pid is %d %lu\n", os::getpid(), os::getthrid());
  81     while (selectDone !=1) ::sleep(1);
  82     p2RetVal = new int();
  83     *p2RetVal = 0;
  84     rv = update(dbMgr, 100, true);
  85     if (rv != OK) { printf("Test Passed:second thread did not update\n"); *p2RetVal = 0; }
  86     if (rv == OK) { printf("Test Failed:second thread updated\n"); *p2RetVal = 1; }
  87     updateDone = 1;
  88     while(select2Done !=1) ::sleep(1);
  89     conn.commit();
  90     conn.close();
  91     pthread_exit(p2RetVal);
  92 }
  93