| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #include "system.h" |
| |
| #include <osl/interlck.h> |
| #include <osl/diagnose.h> |
| |
| extern int osl_isSingleCPU; |
| |
| /* For all Intel x86 above x486 we use a spezial inline assembler implementation. |
| The main reason is that WIN9? does not return the result of the operation. |
| Instead there is only returned a value greater than zero is the increment |
| result is greater than zero, but not the the result of the addition. |
| For Windows NT the native function could be used, because the correct result |
| is returned. Beacuse of simpler code maintance and performace reasons we use |
| on every x86-Windows-Platform the inline assembler implementation. |
| */ |
| |
| /*****************************************************************************/ |
| /* osl_incrementInterlockedCount */ |
| /*****************************************************************************/ |
| oslInterlockedCount SAL_CALL osl_incrementInterlockedCount(oslInterlockedCount* pCount) |
| #ifdef _M_IX86 |
| #ifdef __MINGW32__ |
| { |
| asm |
| ( |
| " movl %0, %%ecx\n" |
| " movl $1, %%eax\n" |
| " movl %1, %%edx\n" |
| " cmpl $0, %%edx\n" |
| " je 1f\n" |
| " xadd %%eax, (%%ecx)\n" |
| " jmp 2f\n" |
| "1:\n" |
| " lock xadd %%eax, (%%ecx)\n" |
| "2:\n" |
| " incl %%eax\n" |
| ::"m"(pCount),"m"(osl_isSingleCPU) |
| ); |
| } |
| #else |
| #pragma warning(disable: 4035) |
| { |
| __asm |
| { |
| mov ecx, pCount |
| mov eax, 1 |
| mov edx, osl_isSingleCPU |
| cmp edx, 0 |
| je is_not_single |
| xadd dword ptr [ecx],eax |
| jmp cont |
| is_not_single: |
| lock xadd dword ptr [ecx],eax |
| cont: |
| inc eax |
| } |
| } |
| #pragma warning(default: 4035) |
| #endif |
| #else |
| #pragma message("WARNING: Using system InterlockedIncrement") |
| { |
| return (InterlockedIncrement(pCount)); |
| } |
| #endif |
| |
| /*****************************************************************************/ |
| /* osl_decrementInterlockedCount */ |
| /*****************************************************************************/ |
| oslInterlockedCount SAL_CALL osl_decrementInterlockedCount(oslInterlockedCount* pCount) |
| #ifdef _M_IX86 |
| #ifdef __MINGW32__ |
| { |
| asm |
| ( |
| " movl %0, %%ecx\n" |
| " orl $-1, %%eax\n" |
| " movl %1, %%edx\n" |
| " cmpl $0, %%edx\n" |
| " je 1f\n" |
| " xadd %%eax, (%%ecx)\n" |
| " jmp 2f\n" |
| "1:\n" |
| " lock xadd %%eax, (%%ecx)\n" |
| "2:\n" |
| " decl %%eax\n" |
| ::"m"(pCount),"m"(osl_isSingleCPU) |
| ); |
| } |
| #else |
| #pragma warning(disable: 4035) |
| { |
| __asm |
| { |
| mov ecx, pCount |
| or eax, -1 |
| mov edx, osl_isSingleCPU |
| cmp edx, 0 |
| je is_not_single |
| xadd dword ptr [ecx],eax |
| jmp cont |
| is_not_single: |
| lock xadd dword ptr [ecx],eax |
| cont: |
| dec eax |
| } |
| } |
| #pragma warning(default: 4035) |
| #endif |
| #else |
| #pragma message("WARNING: Using system InterlockedDecrement") |
| { |
| return (InterlockedDecrement(pCount)); |
| } |
| #endif |