99 lines
3.4 KiB
C++
99 lines
3.4 KiB
C++
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Implement shared vtbl methods. */
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#include "xptcprivate.h"
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nsresult ATTRIBUTE_USED
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PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint32_t* args)
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{
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nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
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const nsXPTInterfaceInfo* iface_info = nullptr;
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const nsXPTMethodInfo* info;
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uint8_t paramCount;
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uint8_t i;
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NS_ASSERTION(self,"no self");
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self->GetInterfaceInfo(&iface_info);
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NS_ASSERTION(iface_info,"no interface info");
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iface_info->GetMethodInfo(uint16_t(methodIndex), &info);
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NS_ASSERTION(info,"no interface info");
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paramCount = info->ParamCount();
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uint32_t* ap = args;
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for(i = 0; i < paramCount; i++, ap++)
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{
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const nsXPTParamInfo& param = info->Param(i);
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const nsXPTType& type = param.GetType();
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nsXPTCMiniVariant* dp = ¶mBuffer[i];
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if(param.IsOut() || !type.IsArithmetic())
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{
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dp->val.p = (void*) *ap;
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continue;
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}
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// else
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switch(type)
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{
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case nsXPTType::T_I8 : dp->val.i8 = *((int8_t*) ap); break;
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case nsXPTType::T_I16 : dp->val.i16 = *((int16_t*) ap); break;
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case nsXPTType::T_I32 : dp->val.i32 = *((int32_t*) ap); break;
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case nsXPTType::T_I64 : dp->val.i64 = *((int64_t*) ap); ap++; break;
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case nsXPTType::T_U8 : dp->val.u8 = *((uint8_t*) ap); break;
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case nsXPTType::T_U16 : dp->val.u16 = *((uint16_t*)ap); break;
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case nsXPTType::T_U32 : dp->val.u32 = *((uint32_t*)ap); break;
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case nsXPTType::T_U64 : dp->val.u64 = *((uint64_t*)ap); ap++; break;
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case nsXPTType::T_FLOAT : dp->val.f = *((float*) ap); break;
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case nsXPTType::T_DOUBLE : dp->val.d = *((double*) ap); ap++; break;
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case nsXPTType::T_BOOL : dp->val.b = *((bool*) ap); break;
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case nsXPTType::T_CHAR : dp->val.c = *((char*) ap); break;
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case nsXPTType::T_WCHAR : dp->val.wc = *((wchar_t*) ap); break;
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default:
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NS_ERROR("bad type");
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break;
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}
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}
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nsresult result = self->CallMethod((uint16_t)methodIndex, info,
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paramBuffer);
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return result;
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}
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/*
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* These stubs move just move the values passed in registers onto the stack,
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* so they are contiguous with values passed on the stack, and then calls
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* PrepareAndDispatch() to do the dirty work.
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*/
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#define STUB_ENTRY(n) \
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__asm__( \
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".global _Stub"#n"__14nsXPTCStubBase\n\t" \
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"_Stub"#n"__14nsXPTCStubBase:\n\t" \
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"stmfd sp!, {r1, r2, r3} \n\t" \
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"mov ip, sp \n\t" \
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"stmfd sp!, {fp, ip, lr, pc} \n\t" \
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"sub fp, ip, #4 \n\t" \
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"mov r1, #"#n" \n\t" /* = methodIndex */ \
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"add r2, sp, #16 \n\t" \
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"bl _PrepareAndDispatch__FP14nsXPTCStubBaseUiPUi \n\t" \
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"ldmea fp, {fp, sp, lr} \n\t" \
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"add sp, sp, #12 \n\t" \
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"mov pc, lr \n\t" \
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);
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#define SENTINEL_ENTRY(n) \
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nsresult nsXPTCStubBase::Sentinel##n() \
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{ \
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NS_ERROR("nsXPTCStubBase::Sentinel called"); \
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return NS_ERROR_NOT_IMPLEMENTED; \
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}
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#include "xptcstubsdef.inc"
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