13c827367444ee418f129b2c238299f49d3264554Jarkko Poyry/*------------------------------------------------------------------------- 23c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * drawElements Thread Library 33c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * --------------------------- 43c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 53c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * Copyright 2014 The Android Open Source Project 63c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 73c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * Licensed under the Apache License, Version 2.0 (the "License"); 83c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * you may not use this file except in compliance with the License. 93c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * You may obtain a copy of the License at 103c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 113c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * http://www.apache.org/licenses/LICENSE-2.0 123c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 133c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * Unless required by applicable law or agreed to in writing, software 143c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * distributed under the License is distributed on an "AS IS" BASIS, 153c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 163c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * See the License for the specific language governing permissions and 173c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * limitations under the License. 183c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 193c827367444ee418f129b2c238299f49d3264554Jarkko Poyry *//*! 203c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * \file 213c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * \brief Win32 implementation of thread management. 223c827367444ee418f129b2c238299f49d3264554Jarkko Poyry *//*--------------------------------------------------------------------*/ 233c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 243c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#include "deThread.h" 253c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 263c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#if (DE_OS == DE_OS_WIN32 || DE_OS == DE_OS_WINCE) 273c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 283c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#include "deMemory.h" 293c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 303c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#define VC_EXTRALEAN 313c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#define WIN32_LEAN_AND_MEAN 323c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#include <windows.h> 333c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 343c827367444ee418f129b2c238299f49d3264554Jarkko Poyry/* Thread handle equals deThread in this implementation. */ 353c827367444ee418f129b2c238299f49d3264554Jarkko PoyryDE_STATIC_ASSERT(sizeof(deThread) >= sizeof(HANDLE)); 363c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 373c827367444ee418f129b2c238299f49d3264554Jarkko Poyrytypedef struct ThreadEntry_s 383c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 393c827367444ee418f129b2c238299f49d3264554Jarkko Poyry deThreadFunc func; 403c827367444ee418f129b2c238299f49d3264554Jarkko Poyry void* arg; 413c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} ThreadEntry; 423c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 433c827367444ee418f129b2c238299f49d3264554Jarkko Poyrystatic int mapPriority (deThreadPriority priority) 443c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 453c827367444ee418f129b2c238299f49d3264554Jarkko Poyry switch (priority) 463c827367444ee418f129b2c238299f49d3264554Jarkko Poyry { 473c827367444ee418f129b2c238299f49d3264554Jarkko Poyry case DE_THREADPRIORITY_LOWEST: return THREAD_PRIORITY_IDLE; 483c827367444ee418f129b2c238299f49d3264554Jarkko Poyry case DE_THREADPRIORITY_LOW: return THREAD_PRIORITY_LOWEST; 493c827367444ee418f129b2c238299f49d3264554Jarkko Poyry case DE_THREADPRIORITY_NORMAL: return THREAD_PRIORITY_NORMAL; 503c827367444ee418f129b2c238299f49d3264554Jarkko Poyry case DE_THREADPRIORITY_HIGH: return THREAD_PRIORITY_ABOVE_NORMAL; 513c827367444ee418f129b2c238299f49d3264554Jarkko Poyry case DE_THREADPRIORITY_HIGHEST: return THREAD_PRIORITY_HIGHEST; 523c827367444ee418f129b2c238299f49d3264554Jarkko Poyry default: DE_ASSERT(DE_FALSE); 533c827367444ee418f129b2c238299f49d3264554Jarkko Poyry } 543c827367444ee418f129b2c238299f49d3264554Jarkko Poyry return 0; 553c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} 563c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 573c827367444ee418f129b2c238299f49d3264554Jarkko Poyrystatic DWORD __stdcall startThread (LPVOID entryPtr) 583c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 593c827367444ee418f129b2c238299f49d3264554Jarkko Poyry ThreadEntry* entry = (ThreadEntry*)entryPtr; 603c827367444ee418f129b2c238299f49d3264554Jarkko Poyry deThreadFunc func = entry->func; 613c827367444ee418f129b2c238299f49d3264554Jarkko Poyry void* arg = entry->arg; 623c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 633c827367444ee418f129b2c238299f49d3264554Jarkko Poyry deFree(entry); 643c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 653c827367444ee418f129b2c238299f49d3264554Jarkko Poyry func(arg); 663c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 673c827367444ee418f129b2c238299f49d3264554Jarkko Poyry return 0; 683c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} 693c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 703c827367444ee418f129b2c238299f49d3264554Jarkko PoyrydeThread deThread_create (deThreadFunc func, void* arg, const deThreadAttributes* attributes) 713c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 723c827367444ee418f129b2c238299f49d3264554Jarkko Poyry ThreadEntry* entry = (ThreadEntry*)deMalloc(sizeof(ThreadEntry)); 733c827367444ee418f129b2c238299f49d3264554Jarkko Poyry HANDLE thread = 0; 743c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 753c827367444ee418f129b2c238299f49d3264554Jarkko Poyry if (!entry) 763c827367444ee418f129b2c238299f49d3264554Jarkko Poyry return 0; 773c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 783c827367444ee418f129b2c238299f49d3264554Jarkko Poyry entry->func = func; 793c827367444ee418f129b2c238299f49d3264554Jarkko Poyry entry->arg = arg; 803c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 813c827367444ee418f129b2c238299f49d3264554Jarkko Poyry thread = CreateThread(DE_NULL, 0, startThread, entry, 0, DE_NULL); 823c827367444ee418f129b2c238299f49d3264554Jarkko Poyry if (!thread) 833c827367444ee418f129b2c238299f49d3264554Jarkko Poyry { 843c827367444ee418f129b2c238299f49d3264554Jarkko Poyry deFree(entry); 853c827367444ee418f129b2c238299f49d3264554Jarkko Poyry return 0; 863c827367444ee418f129b2c238299f49d3264554Jarkko Poyry } 873c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 883c827367444ee418f129b2c238299f49d3264554Jarkko Poyry if (attributes) 893c827367444ee418f129b2c238299f49d3264554Jarkko Poyry SetThreadPriority(thread, mapPriority(attributes->priority)); 903c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 913c827367444ee418f129b2c238299f49d3264554Jarkko Poyry return (deThread)thread; 923c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} 933c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 943c827367444ee418f129b2c238299f49d3264554Jarkko PoyrydeBool deThread_join (deThread thread) 953c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 963c827367444ee418f129b2c238299f49d3264554Jarkko Poyry HANDLE handle = (HANDLE)thread; 973c827367444ee418f129b2c238299f49d3264554Jarkko Poyry WaitForSingleObject(handle, INFINITE); 983c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 993c827367444ee418f129b2c238299f49d3264554Jarkko Poyry return DE_TRUE; 1003c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} 1013c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1023c827367444ee418f129b2c238299f49d3264554Jarkko Poyryvoid deThread_destroy (deThread thread) 1033c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 1043c827367444ee418f129b2c238299f49d3264554Jarkko Poyry HANDLE handle = (HANDLE)thread; 1053c827367444ee418f129b2c238299f49d3264554Jarkko Poyry CloseHandle(handle); 1063c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} 1073c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1083c827367444ee418f129b2c238299f49d3264554Jarkko Poyryvoid deSleep (deUint32 milliseconds) 1093c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 1103c827367444ee418f129b2c238299f49d3264554Jarkko Poyry Sleep((DWORD)milliseconds); 1113c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} 1123c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1133c827367444ee418f129b2c238299f49d3264554Jarkko Poyryvoid deYield (void) 1143c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 1153c827367444ee418f129b2c238299f49d3264554Jarkko Poyry SwitchToThread(); 1163c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} 1173c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1183c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#endif /* DE_OS */ 119