/*
This file is part of jpcsp.
Jpcsp is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Jpcsp is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Jpcsp. If not, see <http://www.gnu.org/licenses/>.
*/
package jpcsp.HLE.kernel.managers;
import static jpcsp.HLE.kernel.types.SceKernelErrors.ERROR_KERNEL_ILLEGAL_ATTR;
import static jpcsp.HLE.kernel.types.SceKernelErrors.ERROR_KERNEL_ILLEGAL_MEMBLOCK;
import static jpcsp.HLE.kernel.types.SceKernelErrors.ERROR_KERNEL_ILLEGAL_MEMSIZE;
import static jpcsp.HLE.kernel.types.SceKernelErrors.ERROR_KERNEL_NOT_FOUND_VPOOL;
import static jpcsp.HLE.kernel.types.SceKernelErrors.ERROR_KERNEL_NO_MEMORY;
import static jpcsp.HLE.kernel.types.SceKernelErrors.ERROR_KERNEL_WAIT_TIMEOUT;
import static jpcsp.HLE.kernel.types.SceKernelErrors.ERROR_KERNEL_WAIT_CANCELLED;
import static jpcsp.HLE.kernel.types.SceKernelErrors.ERROR_KERNEL_WAIT_CAN_NOT_WAIT;
import static jpcsp.HLE.kernel.types.SceKernelErrors.ERROR_KERNEL_WAIT_DELETE;
import static jpcsp.HLE.kernel.types.SceKernelErrors.ERROR_KERNEL_WAIT_STATUS_RELEASED;
import static jpcsp.HLE.kernel.types.SceKernelThreadInfo.PSP_THREAD_READY;
import static jpcsp.HLE.kernel.types.SceKernelThreadInfo.PSP_WAIT_VPL;
import static jpcsp.HLE.modules.SysMemUserForUser.PSP_SMEM_High;
import static jpcsp.HLE.modules.SysMemUserForUser.PSP_SMEM_Low;
import java.util.HashMap;
import java.util.Iterator;
import jpcsp.HLE.Modules;
import jpcsp.HLE.PspString;
import jpcsp.HLE.SceKernelErrorException;
import jpcsp.HLE.TPointer;
import jpcsp.HLE.TPointer32;
import jpcsp.HLE.kernel.types.SceKernelErrors;
import jpcsp.HLE.kernel.types.SceKernelVplInfo;
import jpcsp.HLE.kernel.types.IWaitStateChecker;
import jpcsp.HLE.kernel.types.SceKernelThreadInfo;
import jpcsp.HLE.kernel.types.ThreadWaitInfo;
import jpcsp.HLE.modules.ThreadManForUser;
import org.apache.log4j.Logger;
public class VplManager {
public static Logger log = Modules.getLogger("ThreadManForUser");
private HashMap<Integer, SceKernelVplInfo> vplMap;
private VplWaitStateChecker vplWaitStateChecker;
public final static int PSP_VPL_ATTR_FIFO = 0;
public final static int PSP_VPL_ATTR_PRIORITY = 0x100;
private final static int PSP_VPL_ATTR_PASS = 0x200; // Allow threads that want to allocate small memory blocks to bypass the waiting queue (less memory goes first).
public final static int PSP_VPL_ATTR_ADDR_HIGH = 0x4000; // Create the VPL in high memory.
//public final static int PSP_VPL_ATTR_EXT = 0x8000; // Automatically extend the VPL's memory area (when allocating a block from the VPL and the remaining size is too small, this flag tells the VPL to automatically attempt to extend it's memory area).
public final static int PSP_VPL_ATTR_MASK = PSP_VPL_ATTR_ADDR_HIGH | PSP_VPL_ATTR_PASS | PSP_VPL_ATTR_PRIORITY | 0xFF; // Anything outside this mask is an illegal attr.
public void reset() {
vplMap = new HashMap<Integer, SceKernelVplInfo>();
vplWaitStateChecker = new VplWaitStateChecker();
}
private boolean removeWaitingThread(SceKernelThreadInfo thread) {
SceKernelVplInfo fpl = vplMap.get(thread.wait.Vpl_id);
if (fpl == null) {
return false;
}
fpl.threadWaitingList.removeWaitingThread(thread);
return true;
}
public void onThreadWaitTimeout(SceKernelThreadInfo thread) {
// Untrack
if (removeWaitingThread(thread)) {
// Return WAIT_TIMEOUT
thread.cpuContext._v0 = ERROR_KERNEL_WAIT_TIMEOUT;
} else {
log.warn("VPL deleted while we were waiting for it! (timeout expired)");
// Return WAIT_DELETE
thread.cpuContext._v0 = ERROR_KERNEL_WAIT_DELETE;
}
}
public void onThreadWaitReleased(SceKernelThreadInfo thread) {
// Untrack
if (removeWaitingThread(thread)) {
// Return ERROR_WAIT_STATUS_RELEASED
thread.cpuContext._v0 = ERROR_KERNEL_WAIT_STATUS_RELEASED;
} else {
log.warn("EventFlag deleted while we were waiting for it!");
// Return WAIT_DELETE
thread.cpuContext._v0 = ERROR_KERNEL_WAIT_DELETE;
}
}
public void onThreadDeleted(SceKernelThreadInfo thread) {
if (thread.isWaitingForType(PSP_WAIT_VPL)) {
removeWaitingThread(thread);
}
}
private void onVplDeletedCancelled(int vid, int result) {
ThreadManForUser threadMan = Modules.ThreadManForUserModule;
boolean reschedule = false;
for (Iterator<SceKernelThreadInfo> it = threadMan.iterator(); it.hasNext();) {
SceKernelThreadInfo thread = it.next();
if (thread.isWaitingFor(PSP_WAIT_VPL, vid)) {
thread.cpuContext._v0 = result;
threadMan.hleChangeThreadState(thread, PSP_THREAD_READY);
reschedule = true;
}
}
// Reschedule only if threads waked up.
if (reschedule) {
threadMan.hleRescheduleCurrentThread();
}
}
private void onVplDeleted(int vid) {
onVplDeletedCancelled(vid, ERROR_KERNEL_WAIT_DELETE);
}
private void onVplCancelled(int vid) {
onVplDeletedCancelled(vid, ERROR_KERNEL_WAIT_CANCELLED);
}
private void onVplFree(SceKernelVplInfo info) {
ThreadManForUser threadMan = Modules.ThreadManForUserModule;
boolean reschedule = false;
SceKernelThreadInfo checkedThread = null;
while (info.freeSize > 0) {
SceKernelThreadInfo thread = info.threadWaitingList.getNextWaitingThread(checkedThread);
if (thread == null) {
break;
}
int addr = tryAllocateVpl(info, thread.wait.Vpl_size);
if (addr != 0) {
if (log.isDebugEnabled()) {
log.debug(String.format("onVplFree waking thread %s", thread));
}
// Return allocated address
thread.wait.Vpl_dataAddr.setValue(addr);
info.threadWaitingList.removeWaitingThread(thread);
thread.cpuContext._v0 = 0;
threadMan.hleChangeThreadState(thread, PSP_THREAD_READY);
reschedule = true;
} else {
checkedThread = thread;
}
}
// Reschedule only if threads waked up.
if (reschedule) {
threadMan.hleRescheduleCurrentThread();
}
}
/** @return the address of the allocated block or 0 if failed. */
public int tryAllocateVpl(SceKernelVplInfo info, int size) {
return info.alloc(size);
}
public SceKernelVplInfo getVplInfoByName(String name) {
for (SceKernelVplInfo info : vplMap.values()) {
if (name.equals(info.name)) {
return info;
}
}
return null;
}
public int checkVplID(int uid) {
SceUidManager.checkUidPurpose(uid, "ThreadMan-Vpl", true);
if (!vplMap.containsKey(uid)) {
log.warn(String.format("checkVplID unknown uid=0x%X", uid));
throw new SceKernelErrorException(ERROR_KERNEL_NOT_FOUND_VPOOL);
}
return uid;
}
public int sceKernelCreateVpl(PspString name, int partitionid, int attr, int size, TPointer option) {
if (name.isNull()) {
// PSP is returning this error is case of a NULL name
return SceKernelErrors.ERROR_KERNEL_ERROR;
}
if (option.isNotNull()) {
int optionSize = option.getValue32();
log.warn(String.format("sceKernelCreateVpl option at %s, size=%d", option, optionSize));
}
int memType = PSP_SMEM_Low;
if ((attr & PSP_VPL_ATTR_ADDR_HIGH) == PSP_VPL_ATTR_ADDR_HIGH) {
memType = PSP_SMEM_High;
}
if ((attr & ~PSP_VPL_ATTR_MASK) != 0) {
log.warn("sceKernelCreateVpl bad attr value 0x" + Integer.toHexString(attr));
return ERROR_KERNEL_ILLEGAL_ATTR;
}
if (size == 0) {
return ERROR_KERNEL_ILLEGAL_MEMSIZE;
}
if (size < 0) {
return ERROR_KERNEL_NO_MEMORY;
}
SceKernelVplInfo info = SceKernelVplInfo.tryCreateVpl(name.getString(), partitionid, attr, size, memType);
if (info == null) {
return ERROR_KERNEL_NO_MEMORY;
}
if (log.isDebugEnabled()) {
log.debug(String.format("sceKernelCreateVpl returning %s", info));
}
vplMap.put(info.uid, info);
return info.uid;
}
public int sceKernelDeleteVpl(int uid) {
SceKernelVplInfo info = vplMap.remove(uid);
if (info.freeSize < info.poolSize) {
log.warn(String.format("sceKernelDeleteVpl approx 0x%X unfreed bytes allocated", info.poolSize - info.freeSize));
}
info.delete();
onVplDeleted(uid);
return 0;
}
private int hleKernelAllocateVpl(int uid, int size, TPointer32 dataAddr, TPointer32 timeoutAddr, boolean wait, boolean doCallbacks) {
SceKernelVplInfo vpl = vplMap.get(uid);
if (size <= 0 || size > vpl.poolSize) {
return ERROR_KERNEL_ILLEGAL_MEMSIZE;
}
int addr = tryAllocateVpl(vpl, size);
ThreadManForUser threadMan = Modules.ThreadManForUserModule;
if (addr == 0) {
if (log.isDebugEnabled()) {
log.debug(String.format("hleKernelAllocateVpl %s fast check failed", vpl));
}
if (!wait) {
return ERROR_KERNEL_WAIT_CAN_NOT_WAIT;
}
// Go to wait state
SceKernelThreadInfo currentThread = threadMan.getCurrentThread();
vpl.threadWaitingList.addWaitingThread(currentThread);
// Wait on a specific fpl
currentThread.wait.Vpl_id = uid;
currentThread.wait.Vpl_size = size;
currentThread.wait.Vpl_dataAddr = dataAddr;
threadMan.hleKernelThreadEnterWaitState(PSP_WAIT_VPL, uid, vplWaitStateChecker, timeoutAddr.getAddress(), doCallbacks);
} else {
// Success, do not reschedule the current thread.
if (log.isDebugEnabled()) {
log.debug(String.format("hleKernelAllocateVpl %s fast check succeeded, allocated addr=0x%08X", vpl, addr));
}
dataAddr.setValue(addr);
}
return 0;
}
public int sceKernelAllocateVpl(int uid, int size, TPointer32 dataAddr, TPointer32 timeoutAddr) {
return hleKernelAllocateVpl(uid, size, dataAddr, timeoutAddr, true, false);
}
public int sceKernelAllocateVplCB(int uid, int size, TPointer32 dataAddr, TPointer32 timeoutAddr) {
return hleKernelAllocateVpl(uid, size, dataAddr, timeoutAddr, true, true);
}
public int sceKernelTryAllocateVpl(int uid, int size, TPointer32 dataAddr) {
return hleKernelAllocateVpl(uid, size, dataAddr, TPointer32.NULL, false, false);
}
public int sceKernelFreeVpl(int uid, TPointer dataAddr) {
SceKernelVplInfo info = vplMap.get(uid);
if (!info.free(dataAddr.getAddress())) {
return ERROR_KERNEL_ILLEGAL_MEMBLOCK;
}
onVplFree(info);
return 0;
}
public int sceKernelCancelVpl(int uid, TPointer32 numWaitThreadAddr) {
SceKernelVplInfo info = vplMap.get(uid);
numWaitThreadAddr.setValue(info.getNumWaitingThreads());
info.threadWaitingList.removeAllWaitingThreads();
onVplCancelled(uid);
return 0;
}
public int sceKernelReferVplStatus(int uid, TPointer infoAddr) {
SceKernelVplInfo info = vplMap.get(uid);
if (log.isDebugEnabled()) {
log.debug(String.format("sceKernelReferVplStatus returning %s", info));
}
info.write(infoAddr);
return 0;
}
private class VplWaitStateChecker implements IWaitStateChecker {
@Override
public boolean continueWaitState(SceKernelThreadInfo thread, ThreadWaitInfo wait) {
// Check if the thread has to continue its wait state or if the vpl
// has been allocated during the callback execution.
SceKernelVplInfo vpl = vplMap.get(wait.Vpl_id);
if (vpl == null) {
thread.cpuContext._v0 = ERROR_KERNEL_NOT_FOUND_VPOOL;
return false;
}
// Check vpl.
int addr = tryAllocateVpl(vpl, wait.Vpl_size);
if (addr != 0) {
// Return the allocated address
wait.Vpl_dataAddr.setValue(addr);
vpl.threadWaitingList.removeWaitingThread(thread);
thread.cpuContext._v0 = 0;
return false;
}
return true;
}
}
public static final VplManager singleton = new VplManager();
private VplManager() {
}
}