X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Tools%2Fnativelib%2Fthreads.c;h=aec7076e0c8c3872e30491af482733a21a338c74;hb=12040654ff2053cc97de492180b582027b6de60b;hp=501954de6043044acb2291784edb313f0ad87b0c;hpb=c29ddaf5a4acb51469c9a4ff10bd0dde88872c46;p=tpg%2Facess2.git

diff --git a/Tools/nativelib/threads.c b/Tools/nativelib/threads.c
index 501954de..aec7076e 100644
--- a/Tools/nativelib/threads.c
+++ b/Tools/nativelib/threads.c
@@ -7,41 +7,81 @@
  */
 #include <acess.h>
 #include <threads.h>
+#include <threads_int.h>
+
+// === PROTOTYPES ===
+void	Threads_int_Init(void)	__attribute__((constructor(101)));
+tThread	*Threads_int_CreateTCB(tThread *Parent);
+
+// === GLOBALS ===
+tThread	*gThreads_List;
+tThread __thread	*lpThreads_This;
+ int	giThreads_NextTID = 1;
+tShortSpinlock	glThreadListLock;
 
 // === CODE ===
+void Threads_int_Init(void)
+{
+	lpThreads_This = Threads_int_CreateTCB(NULL);
+	Threads_SetName("ThreadZero");
+}
+
 tThread *Proc_GetCurThread(void)
 {
-	return NULL;
+	return lpThreads_This;
 }
 
 void Threads_PostEvent(tThread *Thread, Uint32 Events)
 {
-	
+	if( !Thread ) {
+		// nope.avi
+		return ;
+	}
+	SHORTLOCK( &Thread->IsLocked );
+	Thread->PendingEvents |= Events;
+	if( Thread->WaitingEvents & Events )
+		Threads_int_SemSignal(Thread->WaitSemaphore);
+	SHORTREL( &Thread->IsLocked );
 }
 
 Uint32 Threads_WaitEvents(Uint32 Events)
 {
-	Log_KernelPanic("Threads", "Can't use _WaitEvents in DiskTool");
-	return 0;
+	if( !Threads_int_ThreadingEnabled() ) {
+		Log_Notice("Threads", "_WaitEvents: Threading disabled");
+		return 0;
+	}
+	lpThreads_This->WaitingEvents = Events;
+	Threads_int_SemWaitAll(lpThreads_This->WaitSemaphore);
+	lpThreads_This->WaitingEvents = 0;
+	Uint32	rv = lpThreads_This->PendingEvents;
+	return rv;
 }
 
 void Threads_ClearEvent(Uint32 Mask)
 {
-	
+	if( !Threads_int_ThreadingEnabled() ) {
+		Log_Notice("Threads", "_ClearEvent: Threading disabled");
+		return ;
+	}
+	SHORTLOCK(&lpThreads_This->IsLocked);
+	lpThreads_This->PendingEvents &= ~Mask;
+	SHORTREL(&lpThreads_This->IsLocked);
 }
 
 tUID Threads_GetUID(void) { return 0; }
 tGID Threads_GetGID(void) { return 0; }
 
-tTID Threads_GetTID(void) { return 0; }
+tTID Threads_GetTID(void) { return lpThreads_This ? lpThreads_This->TID : 0; }
 
-int *Threads_GetMaxFD(void) { static int max_fd=32; return &max_fd; }
-char **Threads_GetCWD(void) { static char *cwd; return &cwd; }
-char **Threads_GetChroot(void) { static char *chroot; return &chroot; }
+int *Threads_GetMaxFD(void)        { return &lpThreads_This->Process->MaxFDs;  }
+char **Threads_GetCWD(void)        { return &lpThreads_This->Process->CWD;     }
+char **Threads_GetChroot(void)     { return &lpThreads_This->Process->Chroot;  }
+void **Threads_GetHandlesPtr(void) { return &lpThreads_This->Process->Handles; }
 
 void Threads_Yield(void)
 {
-	Log_Warning("Threads", "Threads_Yield DEFINITELY shouldn't be used");
+	Log_KernelPanic("Threads", "Threads_Yield DEFINITELY shouldn't be used (%p)",
+		__builtin_return_address(0));
 }
 
 void Threads_Sleep(void)
@@ -49,23 +89,90 @@ void Threads_Sleep(void)
 	Log_Warning("Threads", "Threads_Sleep shouldn't be used");
 }
 
+void Threads_int_WaitForStatusEnd(enum eThreadStatus Status)
+{
+	while( lpThreads_This->Status != Status )
+		Threads_int_SemWaitAll(lpThreads_This->WaitSemaphore);
+}
+
 int Threads_SetName(const char *Name)
 {
-	Log_Notice("Threads", "TODO: Threads_SetName('%s')", Name);
+	if( !lpThreads_This )
+		return 0;
+
+	if( lpThreads_This->ThreadName )
+		free(lpThreads_This->ThreadName);
+	lpThreads_This->ThreadName = strdup(Name);
+
 	return 0;
 }
 
 int *Threads_GetErrno(void) __attribute__ ((weak));
 
-int *Threads_GetErrno(void)// __attribute__ ((weak))
+int *Threads_GetErrno(void)
 {
 	static int a_errno;
 	return &a_errno;
 }
 
+tThread *Threads_RemActive(void)
+{
+	return lpThreads_This;
+}
+
+void Threads_AddActive(tThread *Thread)
+{
+	Thread->Status = THREAD_STAT_ACTIVE;
+	// Increment state-change semaphore
+	Threads_int_SemSignal(Thread->WaitSemaphore);
+}
+
+struct sProcess *Threads_int_CreateProcess(void)
+{
+	struct sProcess *ret = calloc(sizeof(struct sProcess), 1);
+
+	ret->MaxFDs = 32;
+
+	return ret;
+}
+
+tThread *Threads_int_CreateTCB(tThread *Parent)
+{
+	tThread	*ret = calloc( sizeof(tThread), 1 );
+	ret->TID = giThreads_NextTID ++;
+	ret->WaitSemaphore = Threads_int_SemCreate();
+	//ret->Protector = Threads_int_MutexCreate();
+
+	if( !Parent )
+	{
+		ret->Process = Threads_int_CreateProcess();
+	}
+	else
+		ret->Process = Parent->Process;
+
+	ret->ProcNext = ret->Process->Threads;
+	ret->Process->Threads = ret;
+
+	ret->Next = gThreads_List;
+	gThreads_List = ret;
+	
+	return ret;
+}
+
 struct sThread *Proc_SpawnWorker(void (*Fcn)(void*), void *Data)
 {
-	Log_Error("Threads", "TODO - Use pthreads to impliment Proc_SpawnWorker");
-	return NULL;
+	if( !Threads_int_ThreadingEnabled() )
+	{
+		Log_Error("Threads", "Multithreading is disabled in this build");
+		return NULL;
+	}
+	else
+	{
+		tThread	*ret = Threads_int_CreateTCB(lpThreads_This);
+		ret->SpawnFcn = Fcn;
+		ret->SpawnData = Data;
+		Threads_int_CreateThread(ret);
+		return ret;
+	}
 }