static CCNxInterestPayloadId *
_ccnxInterestPayloadId_CreateFromNameSegment(const CCNxNameSegment *nameSegment)
{
ccnxNameSegment_AssertValid(nameSegment);
assertTrue(ccnxNameSegment_GetType(nameSegment) == CCNxNameLabelType_PAYLOADID,
"ccnxInterestPayloadId_CreateFromNameSegment: supplied nameSegment is not a PayloadId");
if (ccnxNameSegment_GetType(nameSegment) != CCNxNameLabelType_PAYLOADID) {
return NULL;
}
CCNxInterestPayloadId *result = parcObject_CreateInstance(CCNxInterestPayloadId);
result->nameSegment = ccnxNameSegment_Acquire(nameSegment);
return result;
}
LONGBOW_TEST_CASE(Global, ccnxInterest_SetPayloadAndId)
{
CCNxName *name = ccnxName_CreateFromURI("lci:/name");
CCNxInterest *interest = ccnxInterest_CreateSimple(name);
CCNxInterestInterface *impl = ccnxInterestInterface_GetInterface(interest);
if (impl->getPayload) {
assertNull(ccnxInterest_GetPayload(interest), "Expected a NULL payload");
}
if (impl->getPayload && impl->setPayload) {
PARCBuffer *payload = parcBuffer_WrapCString("impls have pimples");
ccnxInterest_SetPayloadAndId(interest, payload);
PARCBuffer *payloadOut = ccnxInterest_GetPayload(interest);
assertTrue(parcBuffer_Equals(payload, payloadOut), "Expected an equal buffer");
CCNxName *nameAfterPayload = ccnxInterest_GetName(interest);
CCNxNameSegment *segment = ccnxName_GetSegment(nameAfterPayload, ccnxName_GetSegmentCount(nameAfterPayload) - 1);
assertTrue(ccnxNameSegment_GetType(segment) == CCNxNameLabelType_PAYLOADID, "Expected to find a payload ID appended to the name");
parcBuffer_Release(&payload);
}
ccnxName_Release(&name);
ccnxInterest_Release(&interest);
}
static void
_getChunkNumberFromName(const CCNxName *name, uint64_t *chunkNum, bool *hasChunkNum)
{
// XXX: This could be a utility in CCNxName.
size_t numSegments = ccnxName_GetSegmentCount(name);
CCNxNameSegment *lastSeg = ccnxName_GetSegment(name, numSegments - 1);
if (ccnxNameSegment_GetType(lastSeg) == CCNxNameLabelType_CHUNK) {
*hasChunkNum = true;
*chunkNum = ccnxNameSegmentNumber_Value(lastSeg);
} else {
*hasChunkNum = false;
*chunkNum = 0;
}
}
CCNxInterestPayloadId *
ccnxInterestPayloadId_CreateFromSegmentInName(const CCNxName *name)
{
ccnxName_AssertValid(name);
CCNxInterestPayloadId *result = NULL;
size_t count = ccnxName_GetSegmentCount(name);
for (size_t i = 0; i < count; ++i) {
CCNxNameSegment *segment = ccnxName_GetSegment(name, i);
if (ccnxNameSegment_GetType(segment) == CCNxNameLabelType_PAYLOADID) {
result = _ccnxInterestPayloadId_CreateFromNameSegment(segment);
break;
}
}
return result;
}
MetisTlvName *
metisTlvName_CreateFromCCNxName(const CCNxName *ccnxName)
{
// to avoid reallocs, calculate the exact size we need
size_t memoryLength = 0;
for (size_t i = 0; i < ccnxName_GetSegmentCount(ccnxName); i++) {
CCNxNameSegment *segment = ccnxName_GetSegment(ccnxName, i);
memoryLength += 4 + ccnxNameSegment_Length(segment);
}
MetisTlvName *name = parcMemory_AllocateAndClear(sizeof(MetisTlvName));
assertNotNull(name, "parcMemory_AllocateAndClear(%zu) returned NULL", sizeof(MetisTlvName));
name->memoryLength = memoryLength;
name->memory = parcMemory_Allocate(memoryLength);
assertNotNull(name->memory, "parcMemory_Allocate(%zu) returned NULL", memoryLength);
uint8_t *p = name->memory;
uint8_t *end = p + memoryLength;
for (size_t i = 0; i < ccnxName_GetSegmentCount(ccnxName); i++) {
CCNxNameSegment *segment = ccnxName_GetSegment(ccnxName, i);
uint16_t type = ccnxNameSegment_GetType(segment);
uint16_t length = ccnxNameSegment_Length(segment);
*(uint16_t *) p = htons(type);
p += 2;
*(uint16_t *) p = htons(length);
p += 2;
if (length >0) {
PARCBuffer *buffer = ccnxNameSegment_GetValue(segment);
uint8_t *overlay = parcBuffer_Overlay(buffer, 0);
memcpy(p, overlay, length);
p += length;
}
// sanity check
assertTrue(p <= end, "Wrote past the end of buffer, now at %p end at %p", p, end);
}
_setup(name);
return name;
}
LONGBOW_TEST_CASE(Global, ccnxInterest_SetPayloadWithId)
{
CCNxName *name = ccnxName_CreateFromURI("lci:/name");
CCNxInterest *interest = ccnxInterest_CreateSimple(name);
CCNxName *origNameCopy = ccnxName_Copy(name);
CCNxInterestInterface *impl = ccnxInterestInterface_GetInterface(interest);
if (impl->getPayload) {
assertNull(ccnxInterest_GetPayload(interest), "Expected a NULL payload");
}
if (impl->getPayload && impl->setPayload) {
PARCBuffer *payload = parcBuffer_WrapCString("impls have pimples");
PARCBuffer *payloadIdBuffer = parcBuffer_WrapCString("payload Id buffer");
CCNxInterestPayloadId *payloadId = ccnxInterestPayloadId_Create(payloadIdBuffer,
CCNxInterestPayloadId_TypeCode_App + 2);
ccnxInterest_SetPayloadWithId(interest, payload, payloadId);
PARCBuffer *payloadOut = ccnxInterest_GetPayload(interest);
assertTrue(parcBuffer_Equals(payload, payloadOut), "Expected an equal buffer");
CCNxName *nameAfterPayload = ccnxInterest_GetName(interest);
CCNxNameSegment *segment = ccnxName_GetSegment(nameAfterPayload, ccnxName_GetSegmentCount(nameAfterPayload) - 1);
assertTrue(ccnxNameSegment_GetType(segment) == CCNxNameLabelType_PAYLOADID, "Expected to find a payload ID appended to the name");
CCNxInterestPayloadId *outId = ccnxInterestPayloadId_CreateFromSegmentInName(nameAfterPayload);
assertTrue(ccnxInterestPayloadId_Equals(outId, payloadId), "expected to see the same payload Id after setting the payload");
ccnxInterestPayloadId_Release(&payloadId);
ccnxInterestPayloadId_Release(&outId);
parcBuffer_Release(&payload);
parcBuffer_Release(&payloadIdBuffer);
}
ccnxName_Release(&name);
ccnxName_Release(&origNameCopy);
ccnxInterest_Release(&interest);
}
static bool
_getSegmentIndexOfQueryArgs(CCNxName *name, char *nameString, size_t *segmentNumber)
{
bool result = false;
size_t numSegments = ccnxName_GetSegmentCount(name);
size_t curSegment = 0;
while (curSegment < numSegments) {
CCNxNameSegment *segment = ccnxName_GetSegment(name, curSegment);
if (ccnxNameSegment_GetType(segment) == CCNxNameLabelType_NAME) {
char *segString = ccnxNameSegment_ToString(segment);
if (strncasecmp(segString, nameString, strlen(nameString)) == 0) {
parcMemory_Deallocate(&segString);
*segmentNumber = curSegment + 1;
result = true;
break;
}
parcMemory_Deallocate(&segString);
curSegment++;
}
}
return result;
}