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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Implement shared vtbl methods. */
#include "xptcprivate.h"
#include "xptiprivate.h"
extern "C" {
nsresult ATTRIBUTE_USED
PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint32_t* args)
{
#define PARAM_BUFFER_COUNT 16
nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
nsXPTCMiniVariant* dispatchParams = nullptr;
const nsXPTMethodInfo* info;
uint8_t paramCount;
uint8_t i;
nsresult result = NS_ERROR_FAILURE;
NS_ASSERTION(self,"no self");
self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
NS_ASSERTION(info,"no method info");
paramCount = info->GetParamCount();
// setup variant array pointer
if(paramCount > PARAM_BUFFER_COUNT)
dispatchParams = new nsXPTCMiniVariant[paramCount];
else
dispatchParams = paramBuffer;
NS_ASSERTION(dispatchParams,"no place for params");
uint32_t* ap = args;
for(i = 0; i < paramCount; i++, ap++)
{
const nsXPTParamInfo& param = info->GetParam(i);
const nsXPTType& type = param.GetType();
nsXPTCMiniVariant* dp = &dispatchParams[i];
if(param.IsOut() || !type.IsArithmetic())
{
dp->val.p = (void*) *ap;
continue;
}
switch(type)
{
// the 8 and 16 bit types will have been promoted to 32 bits before
// being pushed onto the stack. Since the 68k is big endian, we
// need to skip over the leading high order bytes.
case nsXPTType::T_I8 : dp->val.i8 = *(((int8_t*) ap) + 3); break;
case nsXPTType::T_I16 : dp->val.i16 = *(((int16_t*) ap) + 1); break;
case nsXPTType::T_I32 : dp->val.i32 = *((int32_t*) ap); break;
case nsXPTType::T_I64 : dp->val.i64 = *((int64_t*) ap); ap++; break;
case nsXPTType::T_U8 : dp->val.u8 = *(((uint8_t*) ap) + 3); break;
case nsXPTType::T_U16 : dp->val.u16 = *(((uint16_t*)ap) + 1); break;
case nsXPTType::T_U32 : dp->val.u32 = *((uint32_t*)ap); break;
case nsXPTType::T_U64 : dp->val.u64 = *((uint64_t*)ap); ap++; break;
case nsXPTType::T_FLOAT : dp->val.f = *((float*) ap); break;
case nsXPTType::T_DOUBLE : dp->val.d = *((double*) ap); ap++; break;
case nsXPTType::T_BOOL : dp->val.b = *((uint32_t* ap); break;
case nsXPTType::T_CHAR : dp->val.c = *(((char*) ap) + 3); break;
case nsXPTType::T_WCHAR : dp->val.wc = *((wchar_t*) ap); break;
default:
NS_ERROR("bad type");
break;
}
}
result = self->mOuter->CallMethod((uint16_t)methodIndex, info, dispatchParams);
if(dispatchParams != paramBuffer)
delete [] dispatchParams;
return result;
}
}
#define STUB_ENTRY(n) \
nsresult nsXPTCStubBase::Stub##n() \
{ \
void *frame = __builtin_frame_address(0); \
return PrepareAndDispatch(this, n, (uint32_t*)frame + 3); \
}
#define SENTINEL_ENTRY(n) \
nsresult nsXPTCStubBase::Sentinel##n() \
{ \
NS_ERROR("nsXPTCStubBase::Sentinel called"); \
return NS_ERROR_NOT_IMPLEMENTED; \
}
#include "xptcstubsdef.inc"
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