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clay_shooter
2008-02-02 01:38:25 +00:00
parent cd58b57a99
commit df0ba33797
97 changed files with 12208 additions and 8816 deletions
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178
unittest/com/jacob/test/safearray/SafeArrayReleaseTest.java
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@@ -7,111 +7,83 @@ import com.jacob.test.BaseTestCase;
/**
* <p>
* May need to run with some command line options (including from inside Eclipse).
* Look in the docs area at the Jacob usage document for command line options.
* <p>
* SF 1085370
In my understatnding, an instance of SafeArray java
class has a
value of a pointer to VARIANT structure that contains a
pointer to
a SAFEARRAY strucuture.
On the other hand, we can create a Variant object from
the
SafeArray object like this:
SafeArray sa = ...;
Variant val = new Variant(sa);
the val object has a pointer to another VARIANT
structure that
contains a pointer to the same SAFEARRAY structure.
In this case, the val object has a pointer to another
VARIANT that
contains a pointer to the same SAFEARRAY like this:
+-----------+
|SafeArray | +------------+
| m_pV--->VARIANT(a) |
+-----------+ | VT_ARRAY| +---------+
| parray---->SAFEARRAY|
+------------+ +^--------+
|
+-----------+ |
|Variant | +------------+ |
| m_pVariant--->VARIANT(b) | |
+-----------+ | VT_ARRAY| |
| parray-----+
+------------+
When previous objects are rereased by
ComThread.Release(),
first the VARIANT(a) is released by VariantClear()
function,
and second the VARIANT(b) is released by VariantClear()
function too.
But the SAFEARRAY was already released by the
VARIANT(a).
So, in my enviroment (WinXP + J2SDK 1.4.1) the
following java program
is sometimes crash with EXCEPTION_ACCESS_VIOLATION.
To solve this problem, it is nessesary to copy the
SAFEARRAY like this:
+-----------+
|Variant | +------------+
| m_pVariant--->VARIANT(a) |
+-----------+ | VT_ARRAY| +---------+
| parray---->SAFEARRAY|
+------------+ +|--------+
|
+-----------+ | copySA()
|SafeArray | +------------+ |
| m_pV--->VARIANT(b) | V
+-----------+ | VT_ARRAY| +---------+
| parray---->SAFEARRAY|
+------------+ +---------+
*
* May need to run with some command line options (including from inside
* Eclipse). Look in the docs area at the Jacob usage document for command line
* options.
* <p>
* May need to run with some command line options (including from inside Eclipse).
* Look in the docs area at the Jacob usage document for command line options.
* SF 1085370 In my understatnding, an instance of SafeArray java class has a
* value of a pointer to VARIANT structure that contains a pointer to a
* SAFEARRAY strucuture.
*
* On the other hand, we can create a Variant object from the SafeArray object
* like this: SafeArray sa = ...; Variant val = new Variant(sa); the val object
* has a pointer to another VARIANT structure that contains a pointer to the
* same SAFEARRAY structure.
*
* In this case, the val object has a pointer to another VARIANT that contains a
* pointer to the same SAFEARRAY like this:
*
* +-----------+ |SafeArray | +------------+ | m_pV--->VARIANT(a) |
* +-----------+ | VT_ARRAY| +---------+ | parray---->SAFEARRAY| +------------+
* +^--------+ | +-----------+ | |Variant | +------------+ | |
* m_pVariant--->VARIANT(b) | | +-----------+ | VT_ARRAY| | | parray-----+
* +------------+
*
* When previous objects are rereased by ComThread.Release(), first the
* VARIANT(a) is released by VariantClear() function, and second the VARIANT(b)
* is released by VariantClear() function too. But the SAFEARRAY was already
* released by the VARIANT(a).
*
* So, in my enviroment (WinXP + J2SDK 1.4.1) the following java program is
* sometimes crash with EXCEPTION_ACCESS_VIOLATION.
*
*
* To solve this problem, it is nessesary to copy the SAFEARRAY like this:
*
* +-----------+ |Variant | +------------+ | m_pVariant--->VARIANT(a) |
* +-----------+ | VT_ARRAY| +---------+ | parray---->SAFEARRAY| +------------+
* +|--------+ | +-----------+ | copySA() |SafeArray | +------------+ | |
* m_pV--->VARIANT(b) | V +-----------+ | VT_ARRAY| +---------+ |
* parray---->SAFEARRAY| +------------+ +---------+
*
* <p>
* May need to run with some command line options (including from inside
* Eclipse). Look in the docs area at the Jacob usage document for command line
* options.
*/
public class SafeArrayReleaseTest extends BaseTestCase {
final static int MAX = 300;
public void testSaveArrayRelease() {
int count;
System.out.println("Starting test for max = "+MAX);
for(count = 1; count<MAX; count++)
{
int i = 0;
try
{
ComThread.InitMTA();
for (i = 0; i < count; i++)
{
SafeArray a1 = new SafeArray(Variant.VariantVariant, 2);
a1.setVariant(0, new Variant("foo"));
a1.setVariant(1, new Variant("bar"));
Variant v = new Variant(a1);
SafeArray a2 = v.toSafeArray(true);
if (a2 == null){
System.out.println("got null back from toSafeArray()");
}
}
ComThread.Release();
System.gc();
//System.out.print(".");
}
catch (Exception e)
{
fail("Test fails with i = " + i + " (max = "+MAX+")");
}
}
System.gc();
System.out.println("\nTest ends with count = " + count + " (max = "+MAX+")");
}
final static int MAX = 300;
/**
* verifies the release works on SafeArray
*/
public void testSaveArrayRelease() {
int count;
System.out.println("Starting test for max = " + MAX);
for (count = 1; count < MAX; count++) {
int i = 0;
try {
ComThread.InitMTA();
for (i = 0; i < count; i++) {
SafeArray a1 = new SafeArray(Variant.VariantVariant, 2);
a1.setVariant(0, new Variant("foo"));
a1.setVariant(1, new Variant("bar"));
Variant v = new Variant(a1);
SafeArray a2 = v.toSafeArray(true);
if (a2 == null) {
System.out.println("got null back from toSafeArray()");
}
}
ComThread.Release();
System.gc();
// System.out.print(".");
} catch (Exception e) {
fail("Test fails with i = " + i + " (max = " + MAX + ")");
}
}
System.gc();
System.out.println("\nTest ends with count = " + count + " (max = "
+ MAX + ")");
}
}