mozilla::ipc::IPCResult
BrowserStreamParent::AnswerNPN_RequestRead(const IPCByteRanges& ranges,
NPError* result)
{
PLUGIN_LOG_DEBUG_FUNCTION;
switch (mState) {
case INITIALIZING:
NS_ERROR("Requesting a read before initialization has completed");
*result = NPERR_GENERIC_ERROR;
return IPC_FAIL_NO_REASON(this);
case ALIVE:
break;
case DYING:
*result = NPERR_GENERIC_ERROR;
return IPC_OK();
default:
NS_ERROR("Unexpected state");
return IPC_FAIL_NO_REASON(this);
}
if (!mStream)
return IPC_FAIL_NO_REASON(this);
if (ranges.Length() > INT32_MAX)
return IPC_FAIL_NO_REASON(this);
UniquePtr<NPByteRange[]> rp(new NPByteRange[ranges.Length()]);
for (uint32_t i = 0; i < ranges.Length(); ++i) {
rp[i].offset = ranges[i].offset;
rp[i].length = ranges[i].length;
rp[i].next = &rp[i + 1];
}
rp[ranges.Length() - 1].next = nullptr;
*result = mNPP->mNPNIface->requestread(mStream, rp.get());
return IPC_OK();
}
bool
BrowserStreamParent::AnswerNPN_RequestRead(const IPCByteRanges& ranges,
NPError* result)
{
PLUGIN_LOG_DEBUG_FUNCTION;
switch (mState) {
case INITIALIZING:
NS_ERROR("Requesting a read before initialization has completed");
*result = NPERR_GENERIC_ERROR;
return false;
case ALIVE:
break;
case DYING:
*result = NPERR_GENERIC_ERROR;
return true;
default:
NS_ERROR("Unexpected state");
return false;
}
if (!mStream)
return false;
if (ranges.Length() > INT32_MAX)
return false;
nsAutoArrayPtr<NPByteRange> rp(new NPByteRange[ranges.Length()]);
for (uint32_t i = 0; i < ranges.Length(); ++i) {
rp[i].offset = ranges[i].offset;
rp[i].length = ranges[i].length;
rp[i].next = &rp[i + 1];
}
rp[ranges.Length() - 1].next = nullptr;
*result = mNPP->mNPNIface->requestread(mStream, rp);
return true;
}