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https://git.suyu.dev/suyu/dynarmic.git
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132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/***************************************************************************************************
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Zyan Core Library (Zycore-C)
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Original Author : Florian Bernd
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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***************************************************************************************************/
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#include <Zycore/API/Memory.h>
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#ifndef ZYAN_NO_LIBC
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#if defined(ZYAN_WINDOWS)
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#elif defined(ZYAN_POSIX)
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# include <unistd.h>
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#else
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# error "Unsupported platform detected"
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#endif
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/* ============================================================================================== */
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/* Exported functions */
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/* ============================================================================================== */
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/* ---------------------------------------------------------------------------------------------- */
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/* General */
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/* ---------------------------------------------------------------------------------------------- */
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ZyanU32 ZyanMemoryGetSystemPageSize()
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{
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#if defined(ZYAN_WINDOWS)
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SYSTEM_INFO system_info;
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GetSystemInfo(&system_info);
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return system_info.dwPageSize;
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#elif defined(ZYAN_POSIX)
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return sysconf(_SC_PAGE_SIZE);
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#endif
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}
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ZyanU32 ZyanMemoryGetSystemAllocationGranularity()
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{
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#if defined(ZYAN_WINDOWS)
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SYSTEM_INFO system_info;
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GetSystemInfo(&system_info);
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return system_info.dwAllocationGranularity;
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#elif defined(ZYAN_POSIX)
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return sysconf(_SC_PAGE_SIZE);
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#endif
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}
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/* ---------------------------------------------------------------------------------------------- */
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/* Memory management */
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/* ---------------------------------------------------------------------------------------------- */
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ZyanStatus ZyanMemoryVirtualProtect(void* address, ZyanUSize size,
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ZyanMemoryPageProtection protection)
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{
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#if defined(ZYAN_WINDOWS)
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DWORD old;
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if (!VirtualProtect(address, size, protection, &old))
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{
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return ZYAN_STATUS_BAD_SYSTEMCALL;
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}
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#elif defined(ZYAN_POSIX)
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if (mprotect(address, size, protection))
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{
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return ZYAN_STATUS_BAD_SYSTEMCALL;
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}
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#endif
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return ZYAN_STATUS_SUCCESS;
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}
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ZyanStatus ZyanMemoryVirtualFree(void* address, ZyanUSize size)
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{
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#if defined(ZYAN_WINDOWS)
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ZYAN_UNUSED(size);
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if (!VirtualFree(address, 0, MEM_RELEASE))
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{
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return ZYAN_STATUS_BAD_SYSTEMCALL;
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}
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#elif defined(ZYAN_POSIX)
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if (munmap(address, size))
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{
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return ZYAN_STATUS_BAD_SYSTEMCALL;
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}
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#endif
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return ZYAN_STATUS_SUCCESS;
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}
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/* ---------------------------------------------------------------------------------------------- */
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/* ============================================================================================== */
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#endif /* ZYAN_NO_LIBC */
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