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Overview
Comment:Call quota callback destructors from within sqlite3_quota_shutdown().
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SHA1: fb80c6f3de73ed832faaeb8c4d83e1354f132b39
User & Date: dan 2010-09-01 16:19:57
Context
2010-09-01
18:00
Add tests to quota.test. (check-in: ec9af6eb user: dan tags: trunk)
16:19
Call quota callback destructors from within sqlite3_quota_shutdown(). (check-in: fb80c6f3 user: dan tags: trunk)
15:26
Boundary value fix to the descriptive comment at the top of test_quota.c. (check-in: 7f6072f0 user: drh tags: trunk)
Changes
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Changes to src/test_quota.c. 

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/* If the reference count and threshold for a quotaGroup are both
** zero, then destroy the quotaGroup.
*/
static void quotaGroupDeref(quotaGroup *pGroup){
  if( pGroup->pFiles==0 && pGroup->iLimit==0 ){

    if( pGroup->pNext ) pGroup->pNext->ppPrev = pGroup->ppPrev;
    if( pGroup->ppPrev ) *pGroup->ppPrev = pGroup->pNext;
    if( pGroup->xDestroy ) pGroup->xDestroy(pGroup->pArg);
    sqlite3_free(pGroup);
  }
}

/*
** Return TRUE if string z matches glob pattern zGlob.
................................................................................
  if( gQuota.isInitialized==0 ) return SQLITE_MISUSE;
  for(pGroup=gQuota.pGroup; pGroup; pGroup=pGroup->pNext){
    if( pGroup->pFiles ) return SQLITE_MISUSE;
  }
  while( gQuota.pGroup ){
    pGroup = gQuota.pGroup;
    gQuota.pGroup = pGroup->pNext;

    sqlite3_free(pGroup);
  }
  gQuota.isInitialized = 0;
  sqlite3_mutex_free(gQuota.pMutex);
  sqlite3_vfs_unregister(&gQuota.sThisVfs);
  memset(&gQuota, 0, sizeof(gQuota));
  return SQLITE_OK;
}
................................................................................
/*
** Destructor for a TCL quota-over-limit callback.
*/
static void tclCallbackDestructor(void *pObj){
  TclQuotaCallback *p = (TclQuotaCallback*)pObj;
  if( p ){
    Tcl_DecrRefCount(p->pScript);
    ckfree((char *)p);
  }
}

/*
** tclcmd: sqlite3_quota_initialize NAME MAKEDEFAULT
*/
static int test_quota_initialize(
................................................................................
){
  const char *zPattern;           /* File pattern to configure */
  sqlite3_int64 iLimit;           /* Initial quota in bytes */
  Tcl_Obj *pScript;               /* Tcl script to invoke to increase quota */
  int rc;                         /* Value returned by quota_set() */
  TclQuotaCallback *p;            /* Callback object */
  int nScript;                    /* Length of callback script */


  /* Process arguments */
  if( objc!=4 ){
    Tcl_WrongNumArgs(interp, 1, objv, "PATTERN LIMIT SCRIPT");
    return TCL_ERROR;
  }
  zPattern = Tcl_GetString(objv[1]);
  if( Tcl_GetWideIntFromObj(interp, objv[2], &iLimit) ) return TCL_ERROR;
  pScript = objv[3];
  Tcl_GetStringFromObj(pScript, &nScript);

  if( nScript>0 ){
    /* Allocate a TclQuotaCallback object */
    p = (TclQuotaCallback *)ckalloc(sizeof(TclQuotaCallback));




    memset(p, 0, sizeof(TclQuotaCallback));
    p->interp = interp;
    Tcl_IncrRefCount(pScript);
    p->pScript = pScript;

  }else{
    p = 0;

  }

  /* Invoke sqlite3_quota_set() */
  rc = sqlite3_quota_set(zPattern, iLimit, tclQuotaCallback,
                         (void*)p, tclCallbackDestructor);

  Tcl_SetResult(interp, (char *)sqlite3TestErrorName(rc), TCL_STATIC);
  return TCL_OK;
}

/*
** tclcmd:  sqlite3_quota_dump








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/* If the reference count and threshold for a quotaGroup are both
** zero, then destroy the quotaGroup.
*/
static void quotaGroupDeref(quotaGroup *pGroup){
  if( pGroup->pFiles==0 && pGroup->iLimit==0 ){
    *pGroup->ppPrev = pGroup->pNext;
    if( pGroup->pNext ) pGroup->pNext->ppPrev = pGroup->ppPrev;

    if( pGroup->xDestroy ) pGroup->xDestroy(pGroup->pArg);
    sqlite3_free(pGroup);
  }
}

/*
** Return TRUE if string z matches glob pattern zGlob.
................................................................................
  if( gQuota.isInitialized==0 ) return SQLITE_MISUSE;
  for(pGroup=gQuota.pGroup; pGroup; pGroup=pGroup->pNext){
    if( pGroup->pFiles ) return SQLITE_MISUSE;
  }
  while( gQuota.pGroup ){
    pGroup = gQuota.pGroup;
    gQuota.pGroup = pGroup->pNext;
    pGroup->iLimit = 0;
    quotaGroupDeref(pGroup);
  }
  gQuota.isInitialized = 0;
  sqlite3_mutex_free(gQuota.pMutex);
  sqlite3_vfs_unregister(&gQuota.sThisVfs);
  memset(&gQuota, 0, sizeof(gQuota));
  return SQLITE_OK;
}
................................................................................
/*
** Destructor for a TCL quota-over-limit callback.
*/
static void tclCallbackDestructor(void *pObj){
  TclQuotaCallback *p = (TclQuotaCallback*)pObj;
  if( p ){
    Tcl_DecrRefCount(p->pScript);
    sqlite3_free((char *)p);
  }
}

/*
** tclcmd: sqlite3_quota_initialize NAME MAKEDEFAULT
*/
static int test_quota_initialize(
................................................................................
){
  const char *zPattern;           /* File pattern to configure */
  sqlite3_int64 iLimit;           /* Initial quota in bytes */
  Tcl_Obj *pScript;               /* Tcl script to invoke to increase quota */
  int rc;                         /* Value returned by quota_set() */
  TclQuotaCallback *p;            /* Callback object */
  int nScript;                    /* Length of callback script */
  void (*xDestroy)(void*);        /* Optional destructor for pArg */

  /* Process arguments */
  if( objc!=4 ){
    Tcl_WrongNumArgs(interp, 1, objv, "PATTERN LIMIT SCRIPT");
    return TCL_ERROR;
  }
  zPattern = Tcl_GetString(objv[1]);
  if( Tcl_GetWideIntFromObj(interp, objv[2], &iLimit) ) return TCL_ERROR;
  pScript = objv[3];
  Tcl_GetStringFromObj(pScript, &nScript);

  if( nScript>0 ){
    /* Allocate a TclQuotaCallback object */
    p = (TclQuotaCallback *)sqlite3_malloc(sizeof(TclQuotaCallback));
    if( !p ){
      Tcl_SetResult(interp, (char *)"SQLITE_NOMEM", TCL_STATIC);
      return TCL_OK;
    }
    memset(p, 0, sizeof(TclQuotaCallback));
    p->interp = interp;
    Tcl_IncrRefCount(pScript);
    p->pScript = pScript;
    xDestroy = tclCallbackDestructor;
  }else{
    p = 0;
    xDestroy = 0;
  }

  /* Invoke sqlite3_quota_set() */
  rc = sqlite3_quota_set(zPattern, iLimit, tclQuotaCallback, (void*)p,xDestroy);


  Tcl_SetResult(interp, (char *)sqlite3TestErrorName(rc), TCL_STATIC);
  return TCL_OK;
}

/*
** tclcmd:  sqlite3_quota_dump

Changes to test/quota.test. 

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}

do_test quota-3.1.1 {
  file delete -force test.db
  sqlite3_quota_initialize "" 1
  sqlite3_quota_set *test.db 4096 quota_check
} {SQLITE_OK}

do_test quota-3.1.2 {
  sqlite3 db test.db
  execsql {
    PRAGMA page_size = 1024;
    PRAGMA journal_mode = delete;
    PRAGMA auto_vacuum = off;
    CREATE TABLE t1(a PRIMARY KEY, b);
................................................................................
} {3072}
do_test quota-3.1.3 {
  sqlite3 db2 test.db
  set ::quota [list]
  execsql { CREATE TABLE t2(a, b) } db2
  set ::quota
} {}
puts "quotas: [sqlite3_quota_dump]"







do_test quota-3.X {
  catch { db close }
  catch { db2 close }
} {0}

#-------------------------------------------------------------------------
................................................................................
  set allq {}
  foreach q [sqlite3_quota_dump] {
    lappend allq [lindex $q 0]
  }
  return [lsort $allq]
}

do_test quota-4.1 {
  sqlite3_quota_set *test.db 0 {}
  quota_list
} {}
do_test quota-4.2 {
  sqlite3_quota_set *test.db 4096 {}
  quota_list
} {*test.db}
do_test quota-4.3 {
  sqlite3_quota_set *test2.db 0 {}
  quota_list
} {*test.db}
do_test quota-4.4 {
  sqlite3_quota_set *test2.db 100000 {}
  quota_list
} {*test.db *test2.db}
do_test quota-4.5 {
  sqlite3_quota_set *test.db 0 {}
  quota_list
} {*test2.db}
do_test quota-4.6 {
  file delete -force test2.db test2.db-journal test2.db-wal
  sqlite3 db test2.db
  db eval {CREATE TABLE t2(x); INSERT INTO t2 VALUES('tab-t2');}
  quota_list
} {*test2.db}
do_test quota-4.7 {
  catchsql {INSERT INTO t2 VALUES(zeroblob(200000))}
} {1 {database or disk is full}}
do_test quota-4.8 {
  sqlite3 db2 test2.db
  db2 eval {SELECT * FROM t2}
} {tab-t2}
do_test quota-4.9 {
  sqlite3_quota_set *test2.db 0 {}
  catchsql {INSERT INTO t2 VALUES(zeroblob(200000))}
} {0 {}}
do_test quota-4.10 {
  quota_list
} {*test2.db}
do_test quota-4.11 {
  db2 close
  quota_list
} {*test2.db}
do_test quota-4.12 {
  db close
  quota_list
} {}















































sqlite3_quota_shutdown 








finish_test








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}

do_test quota-3.1.1 {
  file delete -force test.db
  sqlite3_quota_initialize "" 1
  sqlite3_quota_set *test.db 4096 quota_check
} {SQLITE_OK}

do_test quota-3.1.2 {
  sqlite3 db test.db
  execsql {
    PRAGMA page_size = 1024;
    PRAGMA journal_mode = delete;
    PRAGMA auto_vacuum = off;
    CREATE TABLE t1(a PRIMARY KEY, b);
................................................................................
} {3072}
do_test quota-3.1.3 {
  sqlite3 db2 test.db
  set ::quota [list]
  execsql { CREATE TABLE t2(a, b) } db2
  set ::quota
} {}
do_test quota-3.1.4 {
  catchsql { CREATE TABLE t3(a, b) }
} {1 {database or disk is full}}
do_test quota-3.1.5 {
  set ::quota_request_ok 1
  execsql { CREATE TABLE t3(a, b) }
} {}

do_test quota-3.X {
  catch { db close }
  catch { db2 close }
} {0}

#-------------------------------------------------------------------------
................................................................................
  set allq {}
  foreach q [sqlite3_quota_dump] {
    lappend allq [lindex $q 0]
  }
  return [lsort $allq]
}

do_test quota-4.1.1 {
  sqlite3_quota_set *test.db 0 {}
  quota_list
} {}
do_test quota-4.1.2 {
  sqlite3_quota_set *test.db 4096 {}
  quota_list
} {*test.db}
do_test quota-4.1.3 {
  sqlite3_quota_set *test2.db 0 {}
  quota_list
} {*test.db}
do_test quota-4.1.4 {
  sqlite3_quota_set *test2.db 100000 {}
  quota_list
} {*test.db *test2.db}
do_test quota-4.1.5 {
  sqlite3_quota_set *test.db 0 {}
  quota_list
} {*test2.db}
do_test quota-4.1.6 {
  file delete -force test2.db test2.db-journal test2.db-wal
  sqlite3 db test2.db
  db eval {CREATE TABLE t2(x); INSERT INTO t2 VALUES('tab-t2');}
  quota_list
} {*test2.db}
do_test quota-4.1.7 {
  catchsql {INSERT INTO t2 VALUES(zeroblob(200000))}
} {1 {database or disk is full}}
do_test quota-4.1.8 {
  sqlite3 db2 test2.db
  db2 eval {SELECT * FROM t2}
} {tab-t2}
do_test quota-4.1.9 {
  sqlite3_quota_set *test2.db 0 {}
  catchsql {INSERT INTO t2 VALUES(zeroblob(200000))}
} {0 {}}
do_test quota-4.1.10 {
  quota_list
} {*test2.db}
do_test quota-4.1.11 {
  db2 close
  quota_list
} {*test2.db}
do_test quota-4.1.12 {
  db close
  quota_list
} {}

do_test quota-4.2.1 {
  sqlite3_quota_set A 1000 {}
  sqlite3_quota_set B 1000 {}
  sqlite3_quota_set C 1000 {}
  sqlite3_quota_set D 1000 {}
  quota_list
} {A B C D}
do_test quota-4.2.2 {
  sqlite3_quota_set C 0 {}
  sqlite3_quota_set B 0 {}
  quota_list
} {A D}
do_test quota-4.2.3 {
  sqlite3_quota_set A 0 {}
  sqlite3_quota_set D 0 {}
  quota_list
} {}
do_test quota-4.2.4 {
  sqlite3_quota_set A 1000 {}
  sqlite3_quota_set B 1000 {}
  sqlite3_quota_set C 1000 {}
  sqlite3_quota_set A 0 {}
  sqlite3_quota_set B 0 {}
  sqlite3_quota_set C 0 {}
  quota_list
} {}
do_test quota-4.2.5 {
  sqlite3_quota_set A 1000 {}
  sqlite3_quota_set B 1000 {}
  sqlite3_quota_set C 1000 {}
  sqlite3_quota_set C 0 {}
  sqlite3_quota_set B 0 {}
  sqlite3_quota_set A 0 {}
  quota_list
} {}

do_test quota-4.3.1 {
  sqlite3_quota_set A 1000 quota_callback
  sqlite3 db A
  sqlite3_quota_set A 0 quota_callback
  db close
  quota_list
} {}

do_test quota-4.4.1 {
  sqlite3_quota_set A 1000 quota_callback
  sqlite3_quota_shutdown
} {SQLITE_OK}
do_test quota-4.4.2 {
  quota_list
} {}



catch { sqlite3_quota_shutdown }
finish_test

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