The source release of the qutils.

2026-03-20 00:49:35 +01:00 · 2012-01-31 15:48:05 -06:00
commit 6df9737f9c
111 changed files with 23929 additions and 0 deletions
--- a/qutils/COMMON/THREADS.C
+++ b/qutils/COMMON/THREADS.C
@@ -0,0 +1,239 @@
+
+#include "cmdlib.h"
+#include "threads.h"
+
+#define	MAX_THREADS	64
+
+int		dispatch;
+int		workcount;
+int		oldf;
+qboolean		pacifier;
+
+/*
+=============
+GetThreadWork
+
+=============
+*/
+int	GetThreadWork (void)
+{
+	int	r;
+	int	f;
+
+	ThreadLock ();
+
+	if (dispatch == workcount)
+	{
+		ThreadUnlock ();
+		return -1;
+	}
+
+	f = 10*dispatch / workcount;
+	if (f != oldf)
+	{
+		oldf = f;
+		if (pacifier)
+			printf ("%i...", f);
+	}
+
+	r = dispatch;
+	dispatch++;
+	ThreadUnlock ();
+
+	return r;
+}
+
+
+
+/*
+===================================================================
+
+WIN32
+
+===================================================================
+*/
+#ifdef WIN32
+
+#define	USED
+
+#include <windows.h>
+
+int		numthreads = 1;
+CRITICAL_SECTION		crit;
+
+void ThreadLock (void)
+{
+	EnterCriticalSection (&crit);
+}
+
+void ThreadUnlock (void)
+{
+	LeaveCriticalSection (&crit);
+}
+
+/*
+=============
+RunThreadsOn
+=============
+*/
+void RunThreadsOn (int workcnt, qboolean showpacifier, void(*func)(int))
+{
+	int		threadid[MAX_THREADS];
+	HANDLE	threadhandle[MAX_THREADS];
+	int		i;
+
+	dispatch = 0;
+	workcount = workcnt;
+	oldf = -1;
+	pacifier = showpacifier;
+
+	//
+	// run threads in parallel
+	//
+	InitializeCriticalSection (&crit);
+	for (i=0 ; i<numthreads ; i++)
+	{
+		threadhandle[i] = CreateThread(
+		   NULL,	// LPSECURITY_ATTRIBUTES lpsa,
+		   0,		// DWORD cbStack,
+		   (LPTHREAD_START_ROUTINE)func,	// LPTHREAD_START_ROUTINE lpStartAddr,
+		   (LPVOID)i,	// LPVOID lpvThreadParm,
+		   0,			//   DWORD fdwCreate,
+		   &threadid[i]);
+	}
+
+	for (i=0 ; i<numthreads ; i++)
+		WaitForSingleObject (threadhandle[i], INFINITE);
+	DeleteCriticalSection (&crit);
+	if (pacifier)
+		printf ("\n");
+}
+
+
+#endif
+
+/*
+===================================================================
+
+OSF1
+
+===================================================================
+*/
+
+#ifdef __osf__
+#define	USED
+
+int		numthreads = 4;
+
+#include <pthread.h>
+
+pthread_mutex_t	*my_mutex;
+
+void ThreadLock (void)
+{
+	if (my_mutex)
+		pthread_mutex_lock (my_mutex);
+}
+
+void ThreadUnlock (void)
+{
+	if (my_mutex)
+		pthread_mutex_unlock (my_mutex);
+}
+
+
+/*
+=============
+RunThreadsOn
+=============
+*/
+void RunThreadsOn (int workcnt, qboolean showpacifier, void(*func)(int))
+{
+	int		i;
+	pthread_t	work_threads[MAX_THREADS];
+	pthread_addr_t	status;
+	pthread_attr_t	attrib;
+	pthread_mutexattr_t	mattrib;
+
+	dispatch = 0;
+	workcount = workcnt;
+	oldf = -1;
+	pacifier = showpacifier;
+
+	if (!my_mutex)
+	{
+		my_mutex = malloc (sizeof(*my_mutex));
+		if (pthread_mutexattr_create (&mattrib) == -1)
+			Error ("pthread_mutex_attr_create failed");
+		if (pthread_mutexattr_setkind_np (&mattrib, MUTEX_FAST_NP) == -1)
+			Error ("pthread_mutexattr_setkind_np failed");
+		if (pthread_mutex_init (my_mutex, mattrib) == -1)
+			Error ("pthread_mutex_init failed");
+	}
+
+	if (pthread_attr_create (&attrib) == -1)
+		Error ("pthread_attr_create failed");
+	if (pthread_attr_setstacksize (&attrib, 0x100000) == -1)
+		Error ("pthread_attr_setstacksize failed");
+	
+	for (i=0 ; i<numthreads ; i++)
+	{
+  		if (pthread_create(&work_threads[i], attrib
+		, (pthread_startroutine_t)func, (pthread_addr_t)i) == -1)
+			Error ("pthread_create failed");
+	}
+		
+	for (i=0 ; i<numthreads ; i++)
+	{
+		if (pthread_join (work_threads[i], &status) == -1)
+			Error ("pthread_join failed");
+	}
+
+	if (pacifier)
+		printf ("\n");
+}
+
+
+#endif
+
+/*
+=======================================================================
+
+  SINGLE THREAD
+
+=======================================================================
+*/
+
+#ifndef USED
+
+int		numthreads = 1;
+
+void ThreadLock (void)
+{
+}
+
+void ThreadUnlock (void)
+{
+}
+
+/*
+=============
+RunThreadsOn
+=============
+*/
+void RunThreadsOn (int workcnt, qboolean showpacifier, void(*func)(int))
+{
+	int		i;
+
+	dispatch = 0;
+	workcount = workcnt;
+	oldf = -1;
+	pacifier = showpacifier;
+
+	func(0);
+
+	if (pacifier)
+		printf ("\n");
+}
+
+#endif