]> git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - cmd.c
cbuf: Replace the ugly bitmask thing with an actual return value.
[xonotic/darkplaces.git] / cmd.c
diff --git a/cmd.c b/cmd.c
index ff7c138f2c9f1e7d836aa592ab0e5bba148e1dcf..34895b1b9771f1b74274614d00b11b5fbbf638eb 100644 (file)
--- a/cmd.c
+++ b/cmd.c
@@ -47,14 +47,14 @@ qboolean host_stuffcmdsrun = false;
 
 //=============================================================================
 
-void Cbuf_Lock(cmd_state_t *cmd)
+void Cbuf_Lock(cbuf_t *cbuf)
 {
-       Thread_AtomicLock(&cmd->text_lock);
+       Thread_LockMutex(cbuf->lock);
 }
 
-void Cbuf_Unlock(cmd_state_t *cmd)
+void Cbuf_Unlock(cbuf_t *cbuf)
 {
-       Thread_AtomicUnlock(&cmd->text_lock);
+       Thread_UnlockMutex(cbuf->lock);
 }
 
 
@@ -69,7 +69,7 @@ bind g "impulse 5 ; +attack ; wait ; -attack ; impulse 2"
 */
 static void Cmd_Wait_f (cmd_state_t *cmd)
 {
-       cmd->wait = true;
+       cmd->cbuf->wait = true;
 }
 
 /*
@@ -79,50 +79,46 @@ Cmd_Defer_f
 Cause a command to be executed after a delay.
 ============
 */
+static cbuf_cmd_t *Cbuf_LinkGet(cbuf_t *cbuf, cbuf_cmd_t *existing);
 static void Cmd_Defer_f (cmd_state_t *cmd)
 {
+       cbuf_cmd_t *current;
+       cbuf_t *cbuf = cmd->cbuf;
+
        if(Cmd_Argc(cmd) == 1)
        {
-               cmddeferred_t *next = cmd->deferred_list;
-               if(!next)
+               if(List_IsEmpty(&cbuf->deferred))
                        Con_Printf("No commands are pending.\n");
-               while(next)
+               else
                {
-                       Con_Printf("-> In %9.2f: %s\n", next->delay, next->value);
-                       next = next->next;
+                       llist_t *pos;
+               List_ForEach(pos, &cbuf->deferred)
+               {
+                               current = List_Container(*pos, cbuf_cmd_t, list);
+                               Con_Printf("-> In %9.2f: %s\n", current->delay, current->text);
+                       }
                }
-       } else if(Cmd_Argc(cmd) == 2 && !strcasecmp("clear", Cmd_Argv(cmd, 1)))
+       }
+       else if(Cmd_Argc(cmd) == 2 && !strcasecmp("clear", Cmd_Argv(cmd, 1)))
        {
-               while(cmd->deferred_list)
-               {
-                       cmddeferred_t *defcmd = cmd->deferred_list;
-                       cmd->deferred_list = defcmd->next;
-                       Mem_Free(defcmd->value);
-                       Mem_Free(defcmd);
-               }
-       } else if(Cmd_Argc(cmd) == 3)
+               while(!List_IsEmpty(&cbuf->deferred))
+                       List_Move_Tail(cbuf->deferred.next, &cbuf->free);
+       }
+       else if(Cmd_Argc(cmd) == 3)
        {
-               const char *value = Cmd_Argv(cmd, 2);
-               cmddeferred_t *defcmd = (cmddeferred_t*)Mem_Alloc(tempmempool, sizeof(*defcmd));
-               size_t len = strlen(value);
+               const char *text = Cmd_Argv(cmd, 2);
+               current = Cbuf_LinkGet(cbuf, NULL);
+               current->size = strlen(text);
+               current->source = cmd;
+               current->delay = atof(Cmd_Argv(cmd, 1));
 
-               defcmd->delay = atof(Cmd_Argv(cmd, 1));
-               defcmd->value = (char*)Mem_Alloc(tempmempool, len+1);
-               memcpy(defcmd->value, value, len+1);
-               defcmd->next = NULL;
+               memcpy(current->text, text, current->size + 1);
 
-               if(cmd->deferred_list)
-               {
-                       cmddeferred_t *next = cmd->deferred_list;
-                       while(next->next)
-                               next = next->next;
-                       next->next = defcmd;
-               } else
-                       cmd->deferred_list = defcmd;
-               /* Stupid me... this changes the order... so commands with the same delay go blub :S
-                 defcmd->next = cmd_deferred_list;
-                 cmd_deferred_list = defcmd;*/
-       } else {
+               List_Move_Tail(&current->list, &cbuf->deferred);
+
+       }
+       else
+       {
                Con_Printf("usage: defer <seconds> <command>\n"
                           "       defer clear\n");
                return;
@@ -180,6 +176,158 @@ static void Cmd_Centerprint_f (cmd_state_t *cmd)
 =============================================================================
 */
 
+/*
+============
+Cbuf_ParseText
+
+Parses Quake console command-line
+Returns true if command is complete
+============
+*/
+static qboolean Cbuf_ParseText(char **start, size_t *size)
+{
+       int i = 0;
+       qboolean quotes = false;
+       qboolean comment = false; // Does not imply end because we might be starting the line with a comment.
+       qboolean escaped = false;
+       qboolean end = false; // Reached the end of a valid command
+       char *offset = NULL; // Non-NULL if valid command. Used by the caller to know where to start copying.
+       size_t cmdsize = 0; // Non-zero if valid command. Basically bytes to copy for the caller.
+
+       /*
+        * Allow escapes in quotes. Ignore newlines and
+        * comments. Return 0 if input consists solely
+        * of either of those, and ignore blank input.
+        */
+       while(!end)
+       {
+               switch ((*start)[i])
+               {
+                       case '/':
+                               if(!quotes && (*start)[i+1] == '/' && (i == 0 || ISWHITESPACE((*start)[i-1])))
+                                       comment = true;
+                               break;
+                       case 0:
+                               if(!end && cmdsize)
+                                       return false;
+                               comment = false;
+                               end = true;
+                               break;
+                       case '\r':
+                       case '\n':
+                               comment = false;
+                               quotes = false;
+                               end = true;
+                               break;
+               }
+
+               if(!comment)
+               {
+                       switch ((*start)[i])
+                       {
+                               case ';':
+                                       if(!quotes)
+                                               end = true;
+                                       break;
+                               case '"':
+                                       if (!escaped)
+                                               quotes = !quotes;
+                                       else
+                                               escaped = false;
+                                       break;
+                               case '\\':
+                                       if (!escaped && quotes)
+                                               escaped = true;
+                                       else if (escaped)
+                                               escaped = false;
+                                       break;
+                       }
+
+                       if(!offset)
+                       {
+                               if(!end)
+                                       offset = (char *)&(*start)[i];
+                               else if ((*start)[i])
+                                       end = false;
+                       }
+                       else
+                               cmdsize++;
+               }
+               i++;
+       }
+
+       *start = offset;
+       *size = cmdsize;
+
+       return true;
+}
+
+static cbuf_cmd_t *Cbuf_LinkGet(cbuf_t *cbuf, cbuf_cmd_t *existing)
+{
+       cbuf_cmd_t *ret = NULL;
+       if(existing && existing->pending)
+               ret = existing;
+       else
+       {
+               if(!List_IsEmpty(&cbuf->free))
+                       ret = List_Container(*cbuf->free.next, cbuf_cmd_t, list);
+               else
+               {
+                       ret = (cbuf_cmd_t *)Z_Malloc(sizeof(cbuf_cmd_t));
+                       ret->list.next = ret->list.prev = &ret->list;
+               }
+               ret->size = 0;
+               ret->pending = false;
+       }
+
+       return ret;
+}
+
+
+// Cloudwalk: Not happy with this, but it works.
+static void Cbuf_LinkCreate(cmd_state_t *cmd, llist_t *head, cbuf_cmd_t *existing, const char *text)
+{
+       char *in = (char *)&text[0];
+       qboolean complete;
+       cbuf_t *cbuf = cmd->cbuf;
+       size_t totalsize = 0, newsize = 0;
+       cbuf_cmd_t *current = NULL;
+
+       // Slide the pointer down until we reach the end
+       while(in)
+       {
+               /*
+                * FIXME: Upon reaching a terminator, we make a redundant
+                * call just to say "it's the end of the input stream".
+                */
+               complete = Cbuf_ParseText(&in, &newsize);
+
+               // Valid command
+               if(newsize)
+               {
+                       if(!current)
+                               current = Cbuf_LinkGet(cbuf, existing);
+
+                       if(!current->pending)
+                       {
+                               current->source = cmd;
+                               List_Move_Tail(&current->list, head);
+                       }
+
+                       current->pending = complete;
+                       totalsize += newsize;
+                       strlcpy(&current->text[current->size], in, newsize + 1);
+                       current->size += newsize;
+               }
+               else if (existing && !totalsize)
+                       existing->pending = false;
+               current = NULL;
+               in = &in[newsize];
+       }
+
+       cbuf->size += totalsize;
+}
+
 /*
 ============
 Cbuf_AddText
@@ -189,43 +337,49 @@ Adds command text at the end of the buffer
 */
 void Cbuf_AddText (cmd_state_t *cmd, const char *text)
 {
-       int             l;
+       size_t l = strlen(text);
+       cbuf_t *cbuf = cmd->cbuf;
+       llist_t llist = {&llist, &llist};
 
-       l = (int)strlen(text);
+       Cbuf_Lock(cbuf);
 
-       Cbuf_Lock(cmd);
-       if (cmd->text.maxsize - cmd->text.cursize <= l)
+       if (cbuf->maxsize - cbuf->size <= l)
                Con_Print("Cbuf_AddText: overflow\n");
        else
-               SZ_Write(&cmd->text, (const unsigned char *)text, l);
-       Cbuf_Unlock(cmd);
+       {
+               Cbuf_LinkCreate(cmd, &llist, (List_IsEmpty(&cbuf->start) ? NULL : List_Container(*cbuf->start.prev, cbuf_cmd_t, list)), text);
+               if(!List_IsEmpty(&llist))
+                       List_Splice_Tail(&llist, &cbuf->start);
+       }
+       Cbuf_Unlock(cbuf);
 }
 
-
 /*
 ============
 Cbuf_InsertText
 
 Adds command text immediately after the current command
-Adds a \n to the text
 FIXME: actually change the command buffer to do less copying
 ============
 */
 void Cbuf_InsertText (cmd_state_t *cmd, const char *text)
 {
+       cbuf_t *cbuf = cmd->cbuf;
+       llist_t llist = {&llist, &llist};
        size_t l = strlen(text);
-       Cbuf_Lock(cmd);
+
+       Cbuf_Lock(cbuf);
+
        // we need to memmove the existing text and stuff this in before it...
-       if (cmd->text.cursize + l >= (size_t)cmd->text.maxsize)
+       if (cbuf->size + l >= (size_t)cbuf->maxsize)
                Con_Print("Cbuf_InsertText: overflow\n");
        else
        {
-               // we don't have a SZ_Prepend, so...
-               memmove(cmd->text.data + l, cmd->text.data, cmd->text.cursize);
-               cmd->text.cursize += (int)l;
-               memcpy(cmd->text.data, text, l);
+               Cbuf_LinkCreate(cmd, &llist, List_Container(*cbuf->start.next, cbuf_cmd_t, list), text);
+               List_Splice(&llist, &cbuf->start);
        }
-       Cbuf_Unlock(cmd);
+
+       Cbuf_Unlock(cbuf);
 }
 
 /*
@@ -233,39 +387,30 @@ void Cbuf_InsertText (cmd_state_t *cmd, const char *text)
 Cbuf_Execute_Deferred --blub
 ============
 */
-static void Cbuf_Execute_Deferred (cmd_state_t *cmd)
+static void Cbuf_Execute_Deferred (cbuf_t *cbuf)
 {
-       cmddeferred_t *defcmd, *prev;
+       llist_t *pos;
+       cbuf_cmd_t *current;
        double eat;
-       if (host.realtime - cmd->deferred_oldrealtime < 0 || host.realtime - cmd->deferred_oldrealtime > 1800) cmd->deferred_oldrealtime = host.realtime;
-       eat = host.realtime - cmd->deferred_oldrealtime;
+
+       if (host.realtime - cbuf->deferred_oldtime < 0 || host.realtime - cbuf->deferred_oldtime > 1800)
+               cbuf->deferred_oldtime = host.realtime;
+       eat = host.realtime - cbuf->deferred_oldtime;
        if (eat < (1.0 / 120.0))
                return;
-       cmd->deferred_oldrealtime = host.realtime;
-       prev = NULL;
-       defcmd = cmd->deferred_list;
-       while(defcmd)
+       cbuf->deferred_oldtime = host.realtime;
+
+    List_ForEach(pos, &cbuf->deferred)
        {
-               defcmd->delay -= eat;
-               if(defcmd->delay <= 0)
+               current = List_Container(*pos, cbuf_cmd_t, list);
+               current->delay -= eat;
+               if(current->delay <= 0)
                {
-                       Cbuf_AddText(cmd, defcmd->value);
-                       Cbuf_AddText(cmd, ";\n");
-                       Mem_Free(defcmd->value);
-
-                       if(prev) {
-                               prev->next = defcmd->next;
-                               Mem_Free(defcmd);
-                               defcmd = prev->next;
-                       } else {
-                               cmd->deferred_list = defcmd->next;
-                               Mem_Free(defcmd);
-                               defcmd = cmd->deferred_list;
-                       }
-                       continue;
+                       cbuf->size += current->size;
+                       List_Move(pos, &cbuf->start);
+                       // We must return and come back next frame or the engine will freeze. Fragile... like glass :3
+                       return;
                }
-               prev = defcmd;
-               defcmd = defcmd->next;
        }
 }
 
@@ -274,115 +419,73 @@ static void Cbuf_Execute_Deferred (cmd_state_t *cmd)
 Cbuf_Execute
 ============
 */
-static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias );
-void Cbuf_Execute (cmd_state_t *cmd)
+static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmd_alias_t *alias );
+void Cbuf_Execute (cbuf_t *cbuf)
 {
-       int i;
-       char *text;
-       char line[MAX_INPUTLINE];
+       cbuf_cmd_t *current;
        char preprocessed[MAX_INPUTLINE];
        char *firstchar;
-       qboolean quotes;
-       char *comment;
 
        // LadyHavoc: making sure the tokenizebuffer doesn't get filled up by repeated crashes
-       cmd->tokenizebufferpos = 0;
+       cbuf->tokenizebufferpos = 0;
 
-       while (cmd->text.cursize)
+       while (!List_IsEmpty(&cbuf->start))
        {
-// find a \n or ; line break
-               text = (char *)cmd->text.data;
-
-               quotes = false;
-               comment = NULL;
-               for (i=0 ; i < cmd->text.cursize ; i++)
-               {
-                       if(!comment)
-                       {
-                               if (text[i] == '"')
-                                       quotes = !quotes;
-
-                               if(quotes)
-                               {
-                                       // make sure i doesn't get > cursize which causes a negative
-                                       // size in memmove, which is fatal --blub
-                                       if (i < (cmd->text.cursize-1) && (text[i] == '\\' && (text[i+1] == '"' || text[i+1] == '\\')))
-                                               i++;
-                               }
-                               else
-                               {
-                                       if(text[i] == '/' && text[i + 1] == '/' && (i == 0 || ISWHITESPACE(text[i-1])))
-                                               comment = &text[i];
-                                       if(text[i] == ';')
-                                               break;  // don't break if inside a quoted string or comment
-                               }
-                       }
-
-                       if (text[i] == '\r' || text[i] == '\n')
-                               break;
-               }
-
-               // better than CRASHING on overlong input lines that may SOMEHOW enter the buffer
-               if(i >= MAX_INPUTLINE)
+               /*
+                * Delete the text from the command buffer and move remaining
+                * commands down. This is necessary because commands (exec, alias)
+                * can insert data at the beginning of the text buffer
+                */
+               current = List_Container(*cbuf->start.next, cbuf_cmd_t, list);
+
+               /*
+                * Assume we're rolling with the current command-line and
+                * always set this false because alias expansion or cbuf insertion
+                * without a newline may set this true, and cause weirdness.
+                */
+               current->pending = false;
+
+               cbuf->size -= current->size;
+
+               firstchar = current->text;
+               while(*firstchar && ISWHITESPACE(*firstchar))
+                       ++firstchar;
+               if((strncmp(firstchar, "alias", 5)   || !ISWHITESPACE(firstchar[5])) &&
+                  (strncmp(firstchar, "bind", 4)    || !ISWHITESPACE(firstchar[4])) &&
+                  (strncmp(firstchar, "in_bind", 7) || !ISWHITESPACE(firstchar[7])))
                {
-                       Con_Printf(CON_WARN "Warning: console input buffer had an overlong line. Ignored.\n");
-                       line[0] = 0;
+                       if(Cmd_PreprocessString(current->source, current->text, preprocessed, sizeof(preprocessed), NULL ))
+                               Cmd_ExecuteString(current->source, preprocessed, src_local, false);
                }
                else
                {
-                       memcpy (line, text, comment ? (comment - text) : i);
-                       line[comment ? (comment - text) : i] = 0;
+                       Cmd_ExecuteString (current->source, current->text, src_local, false);
                }
 
-// delete the text from the command buffer and move remaining commands down
-// this is necessary because commands (exec, alias) can insert data at the
-// beginning of the text buffer
+               // Recycle memory so using WASD doesn't cause a malloc and free
+               List_Move_Tail(&current->list, &cbuf->free);
 
-               if (i == cmd->text.cursize)
-                       cmd->text.cursize = 0;
-               else
-               {
-                       i++;
-                       cmd->text.cursize -= i;
-                       memmove (cmd->text.data, text+i, cmd->text.cursize);
-               }
+               current = NULL;
 
-// execute the command line
-               firstchar = line;
-               while(*firstchar && ISWHITESPACE(*firstchar))
-                       ++firstchar;
-               if(
-                       (strncmp(firstchar, "alias", 5) || !ISWHITESPACE(firstchar[5]))
-                       &&
-                       (strncmp(firstchar, "bind", 4) || !ISWHITESPACE(firstchar[4]))
-                       &&
-                       (strncmp(firstchar, "in_bind", 7) || !ISWHITESPACE(firstchar[7]))
-               )
+               if (cbuf->wait)
                {
-                       if(Cmd_PreprocessString( cmd, line, preprocessed, sizeof(preprocessed), NULL ))
-                               Cmd_ExecuteString (cmd, preprocessed, src_command, false);
-               }
-               else
-               {
-                       Cmd_ExecuteString (cmd, line, src_command, false);
-               }
-
-               if (cmd->wait)
-               {       // skip out while text still remains in buffer, leaving it
-                       // for next frame
-                       cmd->wait = false;
+                       /*
+                        * Skip out while text still remains in
+                        * buffer, leaving it for next frame
+                        */
+                       cbuf->wait = false;
                        break;
                }
        }
 }
 
-void Cbuf_Frame(cmd_state_t *cmd)
+void Cbuf_Frame(cbuf_t *cbuf)
 {
-       Cbuf_Execute_Deferred(cmd);
-       if (cmd->text.cursize)
+       Cbuf_Execute_Deferred(cbuf);
+       if (cbuf->size)
        {
                SV_LockThreadMutex();
-               Cbuf_Execute(cmd);
+               Cbuf_Execute(cbuf);
                SV_UnlockThreadMutex();
        }
 }
@@ -473,7 +576,7 @@ static void Cmd_Exec(cmd_state_t *cmd, const char *filename)
        if (!strcmp(filename, "config.cfg"))
        {
                filename = CONFIGFILENAME;
-               if (COM_CheckParm("-noconfig"))
+               if (Sys_CheckParm("-noconfig"))
                        return; // don't execute config.cfg
        }
 
@@ -491,9 +594,6 @@ static void Cmd_Exec(cmd_state_t *cmd, const char *filename)
        if (isdefaultcfg)
                Cbuf_InsertText(cmd, "\ncvar_lockdefaults\n");
 
-       // insert newline after the text to make sure the last line is terminated (some text editors omit the trailing newline)
-       // (note: insertion order here is backwards from execution order, so this adds it after the text, by calling it before...)
-       Cbuf_InsertText (cmd, "\n");
        Cbuf_InsertText (cmd, f);
        Mem_Free(f);
 
@@ -737,7 +837,7 @@ static void Cmd_Exec_f (cmd_state_t *cmd)
                return;
        }
 
-       s = FS_Search(Cmd_Argv(cmd, 1), true, true);
+       s = FS_Search(Cmd_Argv(cmd, 1), true, true, NULL);
        if(!s || !s->numfilenames)
        {
                Con_Printf("couldn't exec %s\n",Cmd_Argv(cmd, 1));
@@ -856,7 +956,7 @@ Creates a new command that executes a command string (possibly ; seperated)
 */
 static void Cmd_Alias_f (cmd_state_t *cmd)
 {
-       cmdalias_t      *a;
+       cmd_alias_t     *a;
        char            line[MAX_INPUTLINE];
        int                     i, c;
        const char              *s;
@@ -889,9 +989,9 @@ static void Cmd_Alias_f (cmd_state_t *cmd)
 
        if (!a)
        {
-               cmdalias_t *prev, *current;
+               cmd_alias_t *prev, *current;
 
-               a = (cmdalias_t *)Z_Malloc (sizeof(cmdalias_t));
+               a = (cmd_alias_t *)Z_Malloc (sizeof(cmd_alias_t));
                strlcpy (a->name, s, sizeof (a->name));
                // insert it at the right alphanumeric position
                for( prev = NULL, current = cmd->userdefined->alias ; current && strcmp( current->name, a->name ) < 0 ; prev = current, current = current->next )
@@ -932,7 +1032,7 @@ Remove existing aliases.
 */
 static void Cmd_UnAlias_f (cmd_state_t *cmd)
 {
-       cmdalias_t      *a, *p;
+       cmd_alias_t     *a, *p;
        int i;
        const char *s;
 
@@ -974,7 +1074,7 @@ static void Cmd_UnAlias_f (cmd_state_t *cmd)
 =============================================================================
 */
 
-static const char *Cmd_GetDirectCvarValue(cmd_state_t *cmd, const char *varname, cmdalias_t *alias, qboolean *is_multiple)
+static const char *Cmd_GetDirectCvarValue(cmd_state_t *cmd, const char *varname, cmd_alias_t *alias, qboolean *is_multiple)
 {
        cvar_t *cvar;
        long argno;
@@ -1100,7 +1200,7 @@ fail:
        return false;
 }
 
-static const char *Cmd_GetCvarValue(cmd_state_t *cmd, const char *var, size_t varlen, cmdalias_t *alias)
+static const char *Cmd_GetCvarValue(cmd_state_t *cmd, const char *var, size_t varlen, cmd_alias_t *alias)
 {
        static char varname[MAX_INPUTLINE]; // cmd_mutex
        static char varval[MAX_INPUTLINE]; // cmd_mutex
@@ -1216,7 +1316,7 @@ Cmd_PreprocessString
 
 Preprocesses strings and replaces $*, $param#, $cvar accordingly. Also strips comments.
 */
-static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias ) {
+static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmd_alias_t *alias ) {
        const char *in;
        size_t eat, varlen;
        unsigned outlen;
@@ -1345,7 +1445,7 @@ Cmd_ExecuteAlias
 Called for aliases and fills in the alias into the cbuffer
 ============
 */
-static void Cmd_ExecuteAlias (cmd_state_t *cmd, cmdalias_t *alias)
+static void Cmd_ExecuteAlias (cmd_state_t *cmd, cmd_alias_t *alias)
 {
        static char buffer[ MAX_INPUTLINE ]; // cmd_mutex
        static char buffer2[ MAX_INPUTLINE ]; // cmd_mutex
@@ -1423,7 +1523,7 @@ static void Cmd_Apropos_f(cmd_state_t *cmd)
 {
        cmd_function_t *func;
        cvar_t *cvar;
-       cmdalias_t *alias;
+       cmd_alias_t *alias;
        const char *partial;
        int count;
        qboolean ispattern;
@@ -1497,30 +1597,44 @@ Cmd_Init
 void Cmd_Init(void)
 {
        cmd_iter_t *cmd_iter;
+       cbuf_t *cbuf = (cbuf_t *)Z_Malloc(sizeof(cbuf_t));
+       cbuf->maxsize = 655360;
+       cbuf->lock = Thread_CreateMutex();
+       cbuf->wait = false;
+       host.cbuf = cbuf;
+
+       cbuf->start.prev = cbuf->start.next = &(cbuf->start);
+       cbuf->deferred.prev = cbuf->deferred.next = &(cbuf->deferred);
+       cbuf->free.prev = cbuf->free.next = &(cbuf->free);
+
        for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
        {
                cmd_state_t *cmd = cmd_iter->cmd;
                cmd->mempool = Mem_AllocPool("commands", 0, NULL);
                // space for commands and script files
-               cmd->text.data = cmd->text_buf;
-               cmd->text.maxsize = sizeof(cmd->text_buf);
-               cmd->text.cursize = 0;
+               cmd->cbuf = cbuf;
                cmd->null_string = "";
        }
        // client console can see server cvars because the user may start a server
        cmd_client.cvars = &cvars_all;
        cmd_client.cvars_flagsmask = CVAR_CLIENT | CVAR_SERVER;
-       cmd_client.cmd_flags = CMD_CLIENT | CMD_CLIENT_FROM_SERVER | CMD_SERVER_FROM_CLIENT;
+       cmd_client.cmd_flags = CMD_CLIENT | CMD_CLIENT_FROM_SERVER;
+       cmd_client.auto_flags = CMD_SERVER_FROM_CLIENT;
+       cmd_client.auto_function = CL_ForwardToServer_f; // FIXME: Move this to the client.
        cmd_client.userdefined = &cmd_userdefined_all;
        // dedicated server console can only see server cvars, there is no client
        cmd_server.cvars = &cvars_all;
        cmd_server.cvars_flagsmask = CVAR_SERVER;
        cmd_server.cmd_flags = CMD_SERVER;
+       cmd_server.auto_flags = 0;
+       cmd_server.auto_function = NULL;
        cmd_server.userdefined = &cmd_userdefined_all;
        // server commands received from clients have no reason to access cvars, cvar expansion seems perilous.
        cmd_serverfromclient.cvars = &cvars_null;
        cmd_serverfromclient.cvars_flagsmask = 0;
        cmd_serverfromclient.cmd_flags = CMD_SERVER_FROM_CLIENT | CMD_USERINFO;
+       cmd_serverfromclient.auto_flags = 0;
+       cmd_serverfromclient.auto_function = NULL;
        cmd_serverfromclient.userdefined = &cmd_userdefined_null;
 
 //
@@ -1576,10 +1690,10 @@ void Cmd_Shutdown(void)
        {
                cmd_state_t *cmd = cmd_iter->cmd;
 
-               if (cmd->text_lock)
+               if (cmd->cbuf->lock)
                {
                        // we usually have this locked when we get here from Host_Quit_f
-                       Cbuf_Unlock(cmd);
+                       Cbuf_Unlock(cmd->cbuf);
                }
 
                Mem_FreePool(&cmd->mempool);
@@ -1618,7 +1732,6 @@ const char *Cmd_Args (cmd_state_t *cmd)
        return cmd->args;
 }
 
-
 /*
 ============
 Cmd_TokenizeString
@@ -1665,14 +1778,14 @@ static void Cmd_TokenizeString (cmd_state_t *cmd, const char *text)
                if (cmd->argc < MAX_ARGS)
                {
                        l = (int)strlen(com_token) + 1;
-                       if (cmd->tokenizebufferpos + l > CMD_TOKENIZELENGTH)
+                       if (cmd->cbuf->tokenizebufferpos + l > CMD_TOKENIZELENGTH)
                        {
                                Con_Printf("Cmd_TokenizeString: ran out of %i character buffer space for command arguments\n", CMD_TOKENIZELENGTH);
                                break;
                        }
-                       memcpy (cmd->tokenizebuffer + cmd->tokenizebufferpos, com_token, l);
-                       cmd->argv[cmd->argc] = cmd->tokenizebuffer + cmd->tokenizebufferpos;
-                       cmd->tokenizebufferpos += l;
+                       memcpy (cmd->cbuf->tokenizebuffer + cmd->cbuf->tokenizebufferpos, com_token, l);
+                       cmd->argv[cmd->argc] = cmd->cbuf->tokenizebuffer + cmd->cbuf->tokenizebufferpos;
+                       cmd->cbuf->tokenizebufferpos += l;
                        cmd->argc++;
                }
        }
@@ -1690,18 +1803,21 @@ void Cmd_AddCommand(int flags, const char *cmd_name, xcommand_t function, const
        cmd_function_t *prev, *current;
        cmd_state_t *cmd;
        xcommand_t save = NULL;
+       qboolean auto_add = false;
        int i;
 
        for (i = 0; i < 3; i++)
        {
                cmd = cmd_iter_all[i].cmd;
-               if (flags & cmd->cmd_flags)
+               if ((flags & cmd->cmd_flags) || (flags & cmd->auto_flags))
                {
-                       if(cmd == &cmd_client && (flags & CMD_SERVER_FROM_CLIENT) && !(flags & CMD_CLIENT))
+                       if((flags & cmd->auto_flags) && cmd->auto_function)
                        {
                                save = function;
-                               function = CL_ForwardToServer_f;
+                               function = cmd->auto_function;
+                               auto_add = true;
                        }
+
                        // fail if the command is a variable name
                        if (Cvar_FindVar(cmd->cvars, cmd_name, ~0))
                        {
@@ -1716,6 +1832,8 @@ void Cmd_AddCommand(int flags, const char *cmd_name, xcommand_t function, const
                                {
                                        if (!strcmp(cmd_name, func->name))
                                        {
+                                               if(func->autofunc && !auto_add)
+                                                       break;
                                                Con_Printf("Cmd_AddCommand: %s already defined\n", cmd_name);
                                                goto next;
                                        }
@@ -1727,6 +1845,7 @@ void Cmd_AddCommand(int flags, const char *cmd_name, xcommand_t function, const
                                func->function = function;
                                func->description = description;
                                func->next = cmd->engine_functions;
+                               func->autofunc = auto_add;
 
                                // insert it at the right alphanumeric position
                                for (prev = NULL, current = cmd->engine_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
@@ -1758,6 +1877,7 @@ void Cmd_AddCommand(int flags, const char *cmd_name, xcommand_t function, const
                                func->description = description;
                                func->csqcfunc = true; //[515]: csqc
                                func->next = cmd->userdefined->csqc_functions;
+                               func->autofunc = false;
 
                                // insert it at the right alphanumeric position
                                for (prev = NULL, current = cmd->userdefined->csqc_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
@@ -1774,10 +1894,35 @@ void Cmd_AddCommand(int flags, const char *cmd_name, xcommand_t function, const
                                function = save;
                }
 next:
+               auto_add = false;
                continue;
        }
 }
 
+static int Cmd_Compare(const char *s1, const char *s2, size_t len, qboolean casesensitive)
+{
+       if(len)
+               return (casesensitive ? strncmp(s1, s2, len) : strncasecmp(s1, s2, len));
+       else
+               return (casesensitive ? strcmp(s1, s2) : strcasecmp(s1, s2));
+}
+
+cmd_function_t *Cmd_GetCommand(cmd_state_t *cmd, const char *partial, size_t len, qboolean casesensitive)
+{
+       cmd_function_t *func = NULL;
+
+       // check functions
+       for (func = cmd->userdefined->csqc_functions; func; func = func->next)
+               if (!Cmd_Compare(partial, func->name, len, casesensitive))
+                       break;
+
+       for (func=cmd->engine_functions ; func ; func=func->next)
+               if (!Cmd_Compare(partial, func->name, len, casesensitive))
+                       break;
+
+       return func;
+}
+
 /*
 ============
 Cmd_Exists
@@ -1785,20 +1930,11 @@ Cmd_Exists
 */
 qboolean Cmd_Exists (cmd_state_t *cmd, const char *cmd_name)
 {
-       cmd_function_t  *func;
-
-       for (func = cmd->userdefined->csqc_functions; func; func = func->next)
-               if (!strcmp(cmd_name, func->name))
-                       return true;
-
-       for (func=cmd->engine_functions ; func ; func=func->next)
-               if (!strcmp (cmd_name,func->name))
-                       return true;
-
+       if(Cmd_GetCommand(cmd, cmd_name, 0, true))
+               return true;
        return false;
 }
 
-
 /*
 ============
 Cmd_CompleteCommand
@@ -1807,22 +1943,10 @@ Cmd_CompleteCommand
 const char *Cmd_CompleteCommand (cmd_state_t *cmd, const char *partial)
 {
        cmd_function_t *func;
-       size_t len;
-
-       len = strlen(partial);
-
-       if (!len)
-               return NULL;
-
-// check functions
-       for (func = cmd->userdefined->csqc_functions; func; func = func->next)
-               if (!strncasecmp(partial, func->name, len))
-                       return func->name;
-
-       for (func = cmd->engine_functions; func; func = func->next)
-               if (!strncasecmp(partial, func->name, len))
-                       return func->name;
 
+       func = Cmd_GetCommand(cmd, partial, strlen(partial), false);
+       if(func)
+               return func->name;
        return NULL;
 }
 
@@ -1915,7 +2039,7 @@ void Cmd_CompleteCommandPrint (cmd_state_t *cmd, const char *partial)
 */
 const char *Cmd_CompleteAlias (cmd_state_t *cmd, const char *partial)
 {
-       cmdalias_t *alias;
+       cmd_alias_t *alias;
        size_t len;
 
        len = strlen(partial);
@@ -1934,7 +2058,7 @@ const char *Cmd_CompleteAlias (cmd_state_t *cmd, const char *partial)
 // written by LadyHavoc
 void Cmd_CompleteAliasPrint (cmd_state_t *cmd, const char *partial)
 {
-       cmdalias_t *alias;
+       cmd_alias_t *alias;
        size_t len = strlen(partial);
        // Loop through the alias list and print all matches
        for (alias = cmd->userdefined->alias; alias; alias = alias->next)
@@ -1954,7 +2078,7 @@ void Cmd_CompleteAliasPrint (cmd_state_t *cmd, const char *partial)
 */
 int Cmd_CompleteAliasCountPossible (cmd_state_t *cmd, const char *partial)
 {
-       cmdalias_t      *alias;
+       cmd_alias_t     *alias;
        size_t          len;
        int                     h;
 
@@ -1984,7 +2108,7 @@ int Cmd_CompleteAliasCountPossible (cmd_state_t *cmd, const char *partial)
 */
 const char **Cmd_CompleteAliasBuildList (cmd_state_t *cmd, const char *partial)
 {
-       cmdalias_t *alias;
+       cmd_alias_t *alias;
        size_t len = 0;
        size_t bpos = 0;
        size_t sizeofbuf = (Cmd_CompleteAliasCountPossible (cmd, partial) + 1) * sizeof (const char *);
@@ -2029,10 +2153,10 @@ void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qb
 {
        int oldpos;
        cmd_function_t *func;
-       cmdalias_t *a;
+       cmd_alias_t *a;
        if (lockmutex)
-               Cbuf_Lock(cmd);
-       oldpos = cmd->tokenizebufferpos;
+               Cbuf_Lock(cmd->cbuf);
+       oldpos = cmd->cbuf->tokenizebufferpos;
        cmd->source = src;
 
        Cmd_TokenizeString (cmd, text);
@@ -2042,23 +2166,16 @@ void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qb
                goto done; // no tokens
 
 // check functions
-       for (func = cmd->userdefined->csqc_functions; func; func = func->next)
+       func = Cmd_GetCommand(cmd, cmd->argv[0], 0, false);
+       if(func)
        {
-               if (!strcasecmp(cmd->argv[0], func->name))
-               {
-                       if (func->csqcfunc && CL_VM_ConsoleCommand(text))       //[515]: csqc
-                               goto done;
-                       break;
-               }
-       }
-
-       for (func = cmd->engine_functions; func; func=func->next)
-       {
-               if (!strcasecmp (cmd->argv[0], func->name))
+               if (func->csqcfunc && CL_VM_ConsoleCommand(text))       //[515]: csqc
+                       goto done;
+               else
                {
                        switch (src)
                        {
-                       case src_command:
+                       case src_local:
                                if (func->function)
                                        func->function(cmd);
                                else
@@ -2074,7 +2191,6 @@ void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qb
                                        goto done;
                                }
                        }
-                       break;
                }
        }
 
@@ -2099,9 +2215,9 @@ void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qb
        if (!Cvar_Command(cmd) && host.framecount > 0)
                Con_Printf("Unknown command \"%s\"\n", Cmd_Argv(cmd, 0));
 done:
-       cmd->tokenizebufferpos = oldpos;
+       cmd->cbuf->tokenizebufferpos = oldpos;
        if (lockmutex)
-               Cbuf_Unlock(cmd);
+               Cbuf_Unlock(cmd->cbuf);
 }
 
 /*
@@ -2139,7 +2255,7 @@ void Cmd_SaveInitState(void)
        {
                cmd_state_t *cmd = cmd_iter->cmd;
                cmd_function_t *f;
-               cmdalias_t *a;
+               cmd_alias_t *a;
                for (f = cmd->userdefined->csqc_functions; f; f = f->next)
                        f->initstate = true;
                for (f = cmd->engine_functions; f; f = f->next)
@@ -2160,7 +2276,7 @@ void Cmd_RestoreInitState(void)
        {
                cmd_state_t *cmd = cmd_iter->cmd;
                cmd_function_t *f, **fp;
-               cmdalias_t *a, **ap;
+               cmd_alias_t *a, **ap;
                for (fp = &cmd->userdefined->csqc_functions; (f = *fp);)
                {
                        if (f->initstate)