Return tail if CCDBuffer overflows

zfergus · zfergus · commit 7c4ce254d65e · 2024-03-26T01:33:02.000-04:00
diff --git a/src/scalable_ccd/cuda/narrow_phase/ccd_buffer.cuh b/src/scalable_ccd/cuda/narrow_phase/ccd_buffer.cuh
@@ -26,7 +26,7 @@ struct CCDBuffer {
     {
         if (is_full()) {
             atomicCAS(&m_overflow_flag, 0, 1);
-            return;
+            return m_data[m_tail]; // Return a dummy value
         }
         const int i = atomicInc(&m_tail, m_capacity - 1);
         m_data[i] = val;

Original file line number	Diff line number	Diff line change
`@@ -26,7 +26,7 @@ struct CCDBuffer {`
`26`	`26`	`{`
`27`	`27`	`if (is_full()) {`
`28`	`28`	`atomicCAS(&m_overflow_flag, 0, 1);`
`29`		`- return;`
	`29`	`+ return m_data[m_tail]; // Return a dummy value`
`30`	`30`	`}`
`31`	`31`	`const int i = atomicInc(&m_tail, m_capacity - 1);`
`32`	`32`	`m_data[i] = val;`