Remove unportable SHM savestates in core

CMakeLists.txt

@@ -54,7 +54,6 @@ target_include_directories (pcsx-hdbg-core
 )
 target_link_libraries (pcsx-hdbg-core
     PUBLIC "${ZLIB_LIBRARIES}"
-    PUBLIC "rt"
 )
 
 add_library (pcsx-hdbg-spu MODULE

core/misc.c

@@ -677,90 +677,9 @@ void RewindState() {
 GPUFreeze_t *gpufP = NULL;
 SPUFreeze_t *spufP = NULL;
 
-/* 
-Pros of using SHM
-+ No need to change SaveState interface (gzip OK)
-+ Possibiliy to preserve saves after pcsxr crash
-
-Cons of using SHM
-- UNIX only
-- Possibility of leaving left over shm files
-- Possibly not the quickest way to allocate memory
-
-*/
-#if !defined(NO_RT_SHM) && !defined(_WINDOWS) && !defined(_WIN32)
-#include <sys/mman.h>
-#include <sys/stat.h> /* For mode constants */
-#include <fcntl.h> /* For O_* constants */
-#include <errno.h>
-
-#define SHM_SS_NAME_TEMPLATE "/pcsxrmemsavestate%.4u"
-
-int SaveStateMem(const u32 id) {
-	char name[32];
-	int ret = -1;
-
-	snprintf(name, sizeof(name), SHM_SS_NAME_TEMPLATE, id);
-	int fd = shm_open(name, O_CREAT | O_RDWR | O_TRUNC, 0666);
-
-	if (fd >= 0) {
-		gzFile f = gzdopen(fd, "wb0T"); // Fast and no compression
-		//gzbuffer(f, 64*1024);
-		//assert(gzdirect(f) == TRUE);
-		if (f != NULL) {
-			ret = SaveStateGz(f, NULL);
-			//printf("Saved %s/%i (ID: %i SZ: %lik)\n", name, fd, id, size/1024);
-		} else {
-			SysMessage("GZ OPEN FAIL %i\n", errno );
-		}
-	} else {
-		SysMessage("FD OPEN FAIL %i\n", errno );
-	}
-	return ret;
-}
-
-int LoadStateMem(const u32 id) {
-	char name[32];
-	int ret = -1;
-
-	snprintf(name, sizeof(name), SHM_SS_NAME_TEMPLATE, id);
-	int fd = shm_open(name, O_RDONLY, 0444);
-
-	if (fd >= 0) {
-		gzFile f = gzdopen(fd, "rb");
-		if (f != NULL) {
-			ret = LoadStateGz(f);
-			//printf("Loaded %s/%i (ID: %i RET: %i)\n", name, fd, id, ret);
-			shm_unlink(name);
-		} else {
-			SysMessage("GZ OPEN FAIL %i\n", errno);
-		}
-	} else {
-		SysMessage("FD OPEN FAIL %i (%s)\n", errno, name);
-	}
-	return ret;
-}
-
-void CleanupMemSaveStates() {
-	char name[32];
-	u32 i;
-
-	for (i=0; i <= Config.RewindCount; i++) {
-		snprintf(name, sizeof(name), SHM_SS_NAME_TEMPLATE, i);
-		if (shm_unlink(name) != 0) {
-			//break;
-		}
-	}
-	free(gpufP);
-	gpufP = NULL;
-	free(spufP);
-	spufP = NULL;
-}
-#else
 int SaveStateMem(const u32 id) {return 0;}
 int LoadStateMem(const u32 id) {return 0;}
 void CleanupMemSaveStates() {}
-#endif
 
 int SaveStateGz(gzFile f, long* gzsize) {
 	int Size;