Generalized multi-instance

CMakeLists.txt

@@ -1449,6 +1449,8 @@ add_library(${CoreLibName} ${CoreLinkType}
 	Core/CwCheat.h
 	Core/HDRemaster.cpp
 	Core/HDRemaster.h
+	Core/Instance.cpp
+	Core/Instance.h
 	Core/ThreadEventQueue.h
 	Core/WebServer.cpp
 	Core/WebServer.h

Core/Config.cpp

@@ -42,6 +42,7 @@
 #include "Core/ConfigValues.h"
 #include "Core/Loaders.h"
 #include "Core/HLE/sceUtility.h"
+#include "Core/Instance.h"
 #include "GPU/Common/FramebufferCommon.h"
 
 // TODO: Find a better place for this.
@@ -1107,8 +1108,13 @@ static void IterateSettings(IniFile &iniFile, std::function<void(IniFile::Sectio
 	}
 }
 
-Config::Config() : bGameSpecific(false) { }
-Config::~Config() { }
+Config::Config() : bGameSpecific(false) {
+	InitInstanceCounter();
+}
+
+Config::~Config() {
+	ShutdownInstanceCounter();
+}
 
 std::map<std::string, std::pair<std::string, int>> GetLangValuesMapping() {
 	std::map<std::string, std::pair<std::string, int>> langValuesMapping;
@@ -1290,9 +1296,23 @@ void Config::Load(const char *iniFileName, const char *controllerIniFilename) {
 		jitForcedOff = true;
 		g_Config.iCpuCore = (int)CPUCore::INTERPRETER;
 	}
+
+	// Automatically silence secondary instances. Could be an option I guess, but meh.
+	if (PPSSPP_ID > 1) {
+		g_Config.iGlobalVolume = 0;
+	}
+
+	INFO_LOG(LOADER, "Config loaded: '%s'", iniFilename_.c_str());
 }
 
 void Config::Save(const char *saveReason) {
+	if (!IsFirstInstance()) {
+		// TODO: Should we allow saving config if started from a different directory?
+		// How do we tell?
+		WARN_LOG(LOADER, "Not saving config - secondary instances don't.");
+		return;
+	}
+
 	if (jitForcedOff) {
 		// if JIT has been forced off, we don't want to screw up the user's ppsspp.ini
 		g_Config.iCpuCore = (int)CPUCore::JIT;

Core/Core.vcxproj

@@ -388,6 +388,7 @@
     <ClCompile Include="HLE\sceUsbCam.cpp" />
     <ClCompile Include="HLE\sceUsbMic.cpp" />
     <ClCompile Include="HW\Camera.cpp" />
+    <ClCompile Include="Instance.cpp" />
     <ClCompile Include="MemFault.cpp" />
     <ClCompile Include="MIPS\IR\IRAsm.cpp" />
     <ClCompile Include="MIPS\IR\IRCompALU.cpp" />
@@ -918,6 +919,7 @@
     <ClInclude Include="HLE\sceUsbCam.h" />
     <ClInclude Include="HLE\sceUsbMic.h" />
     <ClInclude Include="HW\Camera.h" />
+    <ClInclude Include="Instance.h" />
     <ClInclude Include="MemFault.h" />
     <ClInclude Include="MIPS\IR\IRFrontend.h" />
     <ClInclude Include="MIPS\IR\IRInst.h" />

Core/Core.vcxproj.filters

@@ -746,6 +746,9 @@
     <ClCompile Include="MemFault.cpp">
       <Filter>Core</Filter>
     </ClCompile>
+    <ClCompile Include="Instance.cpp">
+      <Filter>Core</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="ELF\ElfReader.h">
@@ -1385,6 +1388,9 @@
     <ClInclude Include="MemFault.h">
       <Filter>Core</Filter>
     </ClInclude>
+    <ClInclude Include="Instance.h">
+      <Filter>Core</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="CMakeLists.txt" />

Core/HLE/proAdhoc.cpp

@@ -32,6 +32,7 @@
 #include "Core/HLE/sceKernelInterrupt.h"
 #include "Core/HLE/sceKernelThread.h"
 #include "Core/HLE/sceKernelMemory.h"
+#include "Core/Instance.h"
 #include "proAdhoc.h" 
 #include "i18n/i18n.h"
 
@@ -68,7 +69,6 @@ bool updateChatScreen = false;
 int newChat = 0;
 
 bool isLocalServer = false;
-uint8_t PPSSPP_ID = 0;
 sockaddr localIP; // This might serves the same purpose with existing "localip" above, but since this is copied from my old code so here it is (too lazy to rewrite the code)
 
 int isLocalMAC(const SceNetEtherAddr * addr) {

Core/HLE/proAdhoc.h

@@ -798,7 +798,6 @@ extern std::map<int, AdhocctlHandler> adhocctlHandlers;
 
 extern uint16_t portOffset;
 extern bool isLocalServer;
-extern uint8_t PPSSPP_ID;
 extern sockaddr localIP;
 extern uint32_t fakePoolSize;
 extern SceNetAdhocMatchingContext * contexts;

Core/HLE/sceNet.cpp

@@ -42,6 +42,7 @@
 #include "Core/HLE/sceNetAdhoc.h"
 #include "Core/HLE/sceNet.h"
 #include "Core/Reporting.h"
+#include "Core/Instance.h"
 
 static bool netInited;
 static bool netInetInited;
@@ -56,124 +57,6 @@ static struct SceNetMallocStat netMallocStat;
 
 static std::map<int, ApctlHandler> apctlHandlers;
 
-#ifdef _WIN32
-static HANDLE hIDMapFile = NULL;
-#elif __linux__ || __APPLE__
-static int hIDMapFile = 0;
-#endif
-static int32_t* pIDBuf = NULL;
-#define ID_SHM_NAME "/PPSSPP_ID"
-
-// Get current number of instance of PPSSPP running.
-// Must be called only once during init.
-static uint8_t getPPSSPPInstanceNumber() {
-#ifdef _WIN32
-	uint32_t BUF_SIZE = 4096;
-	SYSTEM_INFO sysInfo;
-
-	GetSystemInfo(&sysInfo);
-	int gran = sysInfo.dwAllocationGranularity ? sysInfo.dwAllocationGranularity : 0x10000;
-	BUF_SIZE = (BUF_SIZE + gran - 1) & ~(gran - 1);
-
-	hIDMapFile = CreateFileMapping(
-		INVALID_HANDLE_VALUE,    // use paging file
-		NULL,                    // default security
-		PAGE_READWRITE,          // read/write access
-		0,                       // maximum object size (high-order DWORD)
-		BUF_SIZE,                // maximum object size (low-order DWORD)
-		TEXT(ID_SHM_NAME));       // name of mapping object
-
-	DWORD lasterr = GetLastError();
-	if (hIDMapFile == NULL)
-	{
-		ERROR_LOG(SCENET, "Could not create %s file mapping object (%d).", ID_SHM_NAME, lasterr);
-		return 1;
-	}
-	pIDBuf = (int32_t*)MapViewOfFile(hIDMapFile,   // handle to map object
-		FILE_MAP_ALL_ACCESS, // read/write permission
-		0,
-		0,
-		sizeof(int32_t)); //BUF_SIZE
-
-	if (pIDBuf == NULL)
-	{
-		ERROR_LOG(SCENET, "Could not map view of file %s (%d).", ID_SHM_NAME, GetLastError());
-		//CloseHandle(hIDMapFile);
-		return 1;
-	}
-
-	(*pIDBuf)++;
-	int id = *pIDBuf;
-	UnmapViewOfFile(pIDBuf);
-	//CloseHandle(hIDMapFile); //Should be called when program exits
-	//hIDMapFile = NULL;
-
-	return id;
-#elif __ANDROID__
-	// TODO : replace shm_open & shm_unlink with ashmem or android-shmem
-	return 1;
-#elif __linux__ || __APPLE__
-	long BUF_SIZE = 4096;
-	//caddr_t pIDBuf;
-	int status;
-
-	// Create shared memory object 
-
-	hIDMapFile = shm_open(ID_SHM_NAME, O_CREAT | O_RDWR, 0);
-	BUF_SIZE = (BUF_SIZE < sysconf(_SC_PAGE_SIZE)) ? sysconf(_SC_PAGE_SIZE) : BUF_SIZE;
-
-	if ((ftruncate(hIDMapFile, BUF_SIZE)) == -1) {    // Set the size 
-		ERROR_LOG(SCENET, "ftruncate(%s) failure.", ID_SHM_NAME);
-		return 1;
-	}
-
-	pIDBuf = (int32_t*)mmap(0, BUF_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, hIDMapFile, 0);
-	if (pIDBuf == MAP_FAILED) {    // Set the size 
-		ERROR_LOG(SCENET, "mmap(%s) failure.", ID_SHM_NAME);
-		pIDBuf = NULL;
-		return 1;
-	}
-
-	int id = 1;
-	if (mlock(pIDBuf, BUF_SIZE) == 0) {
-		(*pIDBuf)++;
-		id = *pIDBuf;
-		munlock(pIDBuf, BUF_SIZE);
-	}
-
-	status = munmap(pIDBuf, BUF_SIZE);  // Unmap the page 
-	//status = close(hIDMapFile);                   //   Close file, should be called when program exits?
-	//status = shm_unlink(ID_SHM_NAME);     // Unlink [& delete] shared-memory object, should be called when program exits
-
-	return id;
-#else
-	return 1;
-#endif
-}
-
-static void PPSSPPIDCleanup() {
-#ifdef _WIN32
-	if (hIDMapFile != NULL) {
-		CloseHandle(hIDMapFile); // If program exited(or crashed?) or the last handle reference closed the shared memory object will be deleted.
-		hIDMapFile = NULL;
-	}
-#elif __ANDROID__
-	if (hIDMapFile != 0) {
-		close(hIDMapFile);
-		// TODO : replace shm_unlink with ashmem or android-shmem
-		//shm_unlink(ID_SHM_NAME);     // If program exited or crashed before unlinked the shared memory object and it's contents will persist.
-		hIDMapFile = 0;
-	}
-#elif __linux__ || __APPLE__
-	// TODO : This unlink should be called when program exits instead of everytime the game reset.
-	if (hIDMapFile != 0) {
-		close(hIDMapFile);
-		shm_unlink(ID_SHM_NAME);     // If program exited or crashed before unlinked the shared memory object and it's contents will persist.
-		hIDMapFile = 0;
-	}
-#endif
-}
-
 static int InitLocalIP() {
 	// find local IP
 	addrinfo* localAddr;
@@ -232,10 +115,6 @@ static void __ResetInitNetLib() {
 
 void __NetInit() {
 	portOffset = g_Config.iPortOffset;
-	if (PPSSPP_ID == 0) // For persistent ID/IP, New instances may have a possibility to have the same ID/IP if PPSSPPIDCleanup() being called on every reset
-	{
-		PPSSPP_ID = getPPSSPPInstanceNumber(); // This should be called when program started instead of when the game started/reseted
-	}
 
 	net::Init();
 	InitLocalIP();