Added a generic interface for using handles in GIB and made GIB threads

use it.

include/QF/gib.h

@@ -104,5 +104,11 @@ void GIB_Thread_Execute (void);
 
 void GIB_Init (qboolean sandbox);
 
+// Handle interface
+
+unsigned long int GIB_Handle_New (void *data, unsigned short int class);
+void GIB_Handle_Free (unsigned long int num, unsigned short int class);
+void *GIB_Handle_Get (unsigned long int num, unsigned short int class);
+unsigned short int GIB_Handle_Class_New (void);
 
 #endif

include/gib_handle.h

@@ -0,0 +1,44 @@
+/*
+	#FILENAME#
+
+	#DESCRIPTION#
+
+	Copyright (C) 2002 #AUTHOR#
+
+	Author: #AUTHOR#
+	Date: #DATE#
+
+	This program 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 2
+	of the License, or (at your option) any later version.
+
+	This program 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 this program; if not, write to:
+
+		Free Software Foundation, Inc.
+		59 Temple Place - Suite 330
+		Boston, MA  02111-1307, USA
+
+	$Id$
+*/
+
+#ifndef __gib_handle_h
+#define __gib_handle_h
+
+typedef struct gib_handle_s {
+	unsigned short int class;
+	unsigned long int num;
+	void *data;
+	struct gib_handle_s *next;
+} gib_handle_t;
+
+void GIB_Handle_Init (void);
+
+#endif

include/gib_thread.h

@@ -43,12 +43,13 @@ typedef struct gib_thread_s {
 void GIB_Thread_Add (gib_thread_t *thread);
 void GIB_Thread_Remove (gib_thread_t *thread);
 void GIB_Thread_Delete (gib_thread_t *thread);
-gib_thread_t *GIB_Thread_Find (unsigned long int id);
 gib_thread_t *GIB_Thread_New (void);
+void GIB_Thread_Init (void);
 
 int GIB_Event_Register (const char *name, gib_function_t *func);
 void GIB_Event_Init (void);
 
-extern gib_thread_t *gib_threads;
+extern gib_thread_t *gib_thread_first, *gib_thread_last;
+extern unsigned short int gib_thread_class;
 
 #endif

libs/gib/Makefile.am

@@ -6,6 +6,6 @@ lib_LTLIBRARIES= libQFgib.la
 
 libQFgib_la_LDFLAGS=		-version-info 1:0:0
 libQFgib_la_SOURCES= \
-	gib_buffer.c gib_builtin.c gib_execute.c gib_function.c gib_parse.c gib_process.c \
-	gib_regex.c gib_thread.c gib_vars.c gib_init.c gib_tree.c gib_semantics.c ops.c \
-	exp.c regex.c
+	gib_buffer.c gib_builtin.c gib_execute.c gib_function.c gib_parse.c gib_handle.c \
+	gib_process.c gib_regex.c gib_thread.c gib_vars.c gib_init.c gib_tree.c \
+	gib_semantics.c ops.c exp.c regex.c

libs/gib/gib_builtin.c

@@ -63,6 +63,7 @@ const char  rcsid[] =
 #include "gib_vars.h"
 #include "gib_regex.h"
 #include "gib_thread.h"
+#include "gib_handle.h"
 #include "gib_builtin.h"
 
 char        gib_null_string[] = "";
@@ -628,10 +629,9 @@ GIB_Thread_Kill_f (void)
 		cbuf_t     *cur;
 		unsigned long int id = strtoul (GIB_Argv (1), 0, 10);
 
-		thread = GIB_Thread_Find (id);
+		thread = GIB_Handle_Get (id, gib_thread_class);
 		if (!thread) {
-			GIB_Error ("thread", "%s: thread %lu does not exist.", GIB_Argv (0),
-					   id);
+			GIB_Error ("thread", "%s: thread %lu does not exist.", GIB_Argv (0), id);
 			return;
 		}
 
@@ -655,7 +655,7 @@ GIB_Thread_List_f (void)
 	else if (GIB_CanReturn ()) {
 		gib_thread_t *cur;
 
-		for (cur = gib_threads; cur; cur = cur->next)
+		for (cur = gib_thread_first; cur; cur = cur->next)
 			dsprintf (GIB_Return (0), "%lu", cur->id);
 	}
 }

libs/gib/gib_handle.c

@@ -0,0 +1,103 @@
+/*
+	bi_gib.c
+
+	GIB <-> Ruamoko interface
+
+	Copyright (C) 2003 Brian Koropoff
+
+	This program 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 2
+	of the License, or (at your option) any later version.
+
+	This program 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 this program; if not, write to:
+
+		Free Software Foundation, Inc.
+		59 Temple Place - Suite 330
+		Boston, MA  02111-1307, USA
+
+*/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdlib.h>
+
+#include "QF/gib.h"
+
+#include "gib_handle.h"
+
+static __attribute__ ((unused)) const char rcsid[] =
+	"$Id$";
+
+static unsigned long int gib_next_handle, gib_next_class;
+static gib_handle_t *gib_unused_handles;
+static gib_handle_t **gib_handles;
+static unsigned long int gib_handles_size;
+
+unsigned long int
+GIB_Handle_New (void *data, unsigned short int class)
+{
+	gib_handle_t *new;
+	if (gib_unused_handles) {
+		new = gib_unused_handles;
+		gib_unused_handles = new->next;
+	} else {
+		unsigned long int num = gib_next_handle++;
+		if (num >= gib_handles_size) {
+			gib_handles_size += 256;
+			gib_handles = realloc (gib_handles, sizeof(void *) * gib_handles_size);
+		}
+		new = calloc (1, sizeof (gib_handle_t));
+		new->num = num;
+	}
+	new->data = data;
+	new->class = class;
+	gib_handles[new->num] = new;
+	return new->num;
+}
+
+void
+GIB_Handle_Free (unsigned long int num, unsigned short int class)
+{
+	gib_handle_t *hand;
+
+	if (num >= gib_next_handle || gib_handles[num]->class != class)
+		return;
+	hand = gib_handles[num];
+	gib_handles[num] = 0;
+	hand->next = gib_unused_handles;
+	gib_unused_handles = hand;
+}
+
+void *
+GIB_Handle_Get (unsigned long int num, unsigned short int class)
+{
+	if (num >= gib_next_handle || gib_handles[num]->class != class)
+		return 0;
+	return gib_handles[num]->data;
+}
+
+unsigned short int
+GIB_Handle_Class_New (void)
+{
+	return gib_next_class++;
+}
+
+void
+GIB_Handle_Init (void)
+{
+	gib_handles_size = 256;
+	gib_handles = calloc (gib_handles_size, sizeof (gib_handle_t *));
+	gib_next_class = 0;
+	gib_next_handle = 0;
+	gib_unused_handles = 0;
+}

libs/gib/gib_init.c

@@ -53,6 +53,7 @@ const char  rcsid[] =
 #include "gib_regex.h"
 #include "gib_builtin.h"
 #include "gib_thread.h"
+#include "gib_handle.h"
 
 static void
 GIB_Exec_Override_f (void)
@@ -100,6 +101,8 @@ GIB_Init (qboolean sandbox)
 		Cmd_RemoveCommand ("exec");
 		Cmd_AddCommand ("exec", GIB_Exec_Override_f, "Execute a script file.");
 	}
+	// Initialize handle system
+	GIB_Handle_Init ();
 	// Initialize variables
 	GIB_Var_Init ();
 	// Initialize regex cache
@@ -108,4 +111,5 @@ GIB_Init (qboolean sandbox)
 	GIB_Builtin_Init (sandbox);
 	// Initialize event system
 	GIB_Event_Init ();
+
 }

libs/gib/gib_thread.c

@@ -45,23 +45,31 @@ const char  rcsid[] = "$Id$";
 #include "QF/dstring.h"
 #include "QF/hash.h"
 
+#include "gib_handle.h"
 #include "gib_tree.h"
 #include "gib_function.h"
 #include "gib_thread.h"
 
-gib_thread_t *gib_threads = 0;
-gib_thread_t **gib_thread_p = &gib_threads;
+gib_thread_t *gib_thread_first = 0;
+gib_thread_t *gib_thread_last = 0;
+
+unsigned short int gib_thread_class;
 
 hashtab_t  *gib_events;
 
-static unsigned long int nextid = 0;
-
 void
 GIB_Thread_Add (gib_thread_t * thread)
 {
-	thread->prev = *gib_thread_p;
-	*gib_thread_p = thread;
-	gib_thread_p = &thread->next;
+	if (!gib_thread_first)
+		gib_thread_first = thread;
+
+	thread->prev = gib_thread_last;
+	if (!gib_thread_last)
+		gib_thread_last = thread;
+	else {
+		gib_thread_last->next = thread;
+		gib_thread_last = thread;
+	}
 }
 
 void
@@ -70,24 +78,11 @@ GIB_Thread_Remove (gib_thread_t * thread)
 	if (thread->prev)
 		thread->prev->next = thread->next;
 	else
-		gib_threads = thread->next;
+		gib_thread_first = thread->next;
 	if (thread->next)
 		thread->next->prev = thread->prev;
-	else if (thread->prev)
-		gib_thread_p = &thread->prev->next;
 	else
-		gib_thread_p = &gib_threads;
-}
-
-gib_thread_t *
-GIB_Thread_Find (unsigned long int id)
-{
-	gib_thread_t *cur;
-
-	for (cur = gib_threads; cur; cur = cur->next)
-		if (cur->id == id)
-			return cur;
-	return 0;
+		gib_thread_last = thread->next;
 }
 
 gib_thread_t *
@@ -96,8 +91,7 @@ GIB_Thread_New (void)
 	gib_thread_t *new = calloc (1, sizeof (gib_thread_t));
 
 	new->cbuf = Cbuf_New (GIB_Interpreter ());
-	new->id = nextid;
-	nextid++;
+	new->id = GIB_Handle_New (new, gib_thread_class);
 	return new;
 }
 
@@ -105,6 +99,7 @@ void
 GIB_Thread_Delete (gib_thread_t * thread)
 {
 	Cbuf_DeleteStack (thread->cbuf);
+	GIB_Handle_Free (thread->id, gib_thread_class);
 	free (thread);
 }
 
@@ -113,20 +108,26 @@ GIB_Thread_Execute (void)
 {
 	gib_thread_t *cur, *tmp;
 
-	if (!gib_threads)
+	if (!gib_thread_first)
 		return;
 
-	for (cur = gib_threads; cur; cur = tmp) {
+	for (cur = gib_thread_first; cur; cur = tmp) {
 		tmp = cur->next;
 		if (GIB_DATA(cur->cbuf)->program)
 			Cbuf_Execute_Stack (cur->cbuf);
 		else {
 			GIB_Thread_Remove (cur);
 			GIB_Thread_Delete (cur);
-		}			
+		}
 	}
 }
 
+void
+GIB_Thread_Init (void)
+{
+	gib_thread_class = GIB_Handle_Class_New ();
+}
+
 static const char *
 GIB_Event_Get_Key (void *ele, void *ptr)
 {