kfdtest: Re-factor dynamic packet allocation into BasePacket

Avoids unnecessary and error-prone duplication of dynamic packet
allocation in many packet classes.

Change-Id: Icec981ae2cd7a3d88cdf9213298940d85627f853
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>

tests/kfdtest/src/BasePacket.cpp

@@ -25,10 +25,15 @@
 #include "KFDTestUtil.hpp"
 #include "KFDBaseComponentTest.hpp"
 
-BasePacket::BasePacket(void) {
+BasePacket::BasePacket(void): m_packetAllocation(NULL) {
     m_FamilyId = g_baseTest->GetFamilyIdFromDefaultNode();
 }
 
+BasePacket::~BasePacket(void) {
+    if (m_packetAllocation)
+        free(m_packetAllocation);
+}
+
 void BasePacket::Dump() const {
     unsigned int size = SizeInDWords();
     const HSAuint32 *packet = (const HSAuint32 *)GetPacket();
@@ -40,3 +45,16 @@ void BasePacket::Dump() const {
         log << " " << std::setw(8) << std::setfill('0') << packet[i];
     log << std::endl;
 }
+
+void *BasePacket::AllocPacket(void) {
+    unsigned int size = SizeInBytes();
+
+    EXPECT_NE(0, size);
+    if (!size)
+        return NULL;
+
+    m_packetAllocation = calloc(1, size);
+    EXPECT_NOTNULL(m_packetAllocation);
+
+    return m_packetAllocation;
+}