зеркало из https://github.com/mozilla/pjs.git
143 строки
2.8 KiB
C++
143 строки
2.8 KiB
C++
/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */
|
|
|
|
#include "BrowserStreamParent.h"
|
|
#include "PluginInstanceParent.h"
|
|
|
|
// How much data are we willing to send across the wire
|
|
// in one chunk?
|
|
static const int32_t kSendDataChunk = 0x1000;
|
|
|
|
namespace mozilla {
|
|
namespace plugins {
|
|
|
|
BrowserStreamParent::BrowserStreamParent(PluginInstanceParent* npp,
|
|
NPStream* stream)
|
|
: mNPP(npp)
|
|
, mStream(stream)
|
|
, mState(ALIVE)
|
|
{
|
|
mStream->pdata = static_cast<AStream*>(this);
|
|
}
|
|
|
|
BrowserStreamParent::~BrowserStreamParent()
|
|
{
|
|
}
|
|
|
|
bool
|
|
BrowserStreamParent::AnswerNPN_RequestRead(const IPCByteRanges& ranges,
|
|
NPError* result)
|
|
{
|
|
PLUGIN_LOG_DEBUG_FUNCTION;
|
|
|
|
switch (mState) {
|
|
case ALIVE:
|
|
break;
|
|
|
|
case DYING:
|
|
*result = NPERR_GENERIC_ERROR;
|
|
return true;
|
|
|
|
default:
|
|
NS_ERROR("Unexpected state");
|
|
return false;
|
|
}
|
|
|
|
if (!mStream)
|
|
return false;
|
|
|
|
if (ranges.size() > PR_INT32_MAX)
|
|
return false;
|
|
|
|
nsAutoArrayPtr<NPByteRange> rp(new NPByteRange[ranges.size()]);
|
|
for (PRUint32 i = 0; i < ranges.size(); ++i) {
|
|
rp[i].offset = ranges[i].offset;
|
|
rp[i].length = ranges[i].length;
|
|
rp[i].next = &rp[i + 1];
|
|
}
|
|
rp[ranges.size() - 1].next = NULL;
|
|
|
|
*result = mNPP->mNPNIface->requestread(mStream, rp);
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
BrowserStreamParent::RecvNPN_DestroyStream(const NPReason& reason)
|
|
{
|
|
switch (mState) {
|
|
case ALIVE:
|
|
break;
|
|
|
|
case DYING:
|
|
return true;
|
|
|
|
default:
|
|
NS_ERROR("Unexpected state");
|
|
return false;
|
|
};
|
|
|
|
mNPP->mNPNIface->destroystream(mNPP->mNPP, mStream, reason);
|
|
return true;
|
|
}
|
|
|
|
void
|
|
BrowserStreamParent::NPP_DestroyStream(NPReason reason)
|
|
{
|
|
NS_ASSERTION(ALIVE == mState, "NPP_DestroyStream called twice?");
|
|
mState = DYING;
|
|
SendNPP_DestroyStream(reason);
|
|
}
|
|
|
|
bool
|
|
BrowserStreamParent::RecvStreamDestroyed()
|
|
{
|
|
if (DYING != mState) {
|
|
NS_ERROR("Unexpected state");
|
|
return false;
|
|
}
|
|
|
|
mState = DELETING;
|
|
Send__delete__(this);
|
|
return true;
|
|
}
|
|
|
|
int32_t
|
|
BrowserStreamParent::WriteReady()
|
|
{
|
|
return kSendDataChunk;
|
|
}
|
|
|
|
int32_t
|
|
BrowserStreamParent::Write(int32_t offset,
|
|
int32_t len,
|
|
void* buffer)
|
|
{
|
|
PLUGIN_LOG_DEBUG_FUNCTION;
|
|
|
|
NS_ASSERTION(ALIVE == mState, "Sending data after NPP_DestroyStream?");
|
|
NS_ASSERTION(len > 0, "Non-positive length to NPP_Write");
|
|
|
|
if (len > kSendDataChunk)
|
|
len = kSendDataChunk;
|
|
|
|
SendWrite(offset,
|
|
nsCString(static_cast<char*>(buffer), len),
|
|
mStream->end);
|
|
|
|
return len;
|
|
}
|
|
|
|
void
|
|
BrowserStreamParent::StreamAsFile(const char* fname)
|
|
{
|
|
PLUGIN_LOG_DEBUG_FUNCTION;
|
|
|
|
NS_ASSERTION(ALIVE == mState,
|
|
"Calling streamasfile after NPP_DestroyStream?");
|
|
|
|
CallNPP_StreamAsFile(nsCString(fname));
|
|
return;
|
|
}
|
|
|
|
} // namespace plugins
|
|
} // namespace mozilla
|