287 lines
5.7 KiB
287 lines
5.7 KiB
/* |
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base_cmd.c - command & cvar hashmap. Insipred by Doom III |
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Copyright (C) 2016 a1batross |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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*/ |
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#include "common.h" |
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#include "base_cmd.h" |
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#include "cdll_int.h" |
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// TODO: use another hash function, as COM_HashKey depends on string length |
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#define HASH_SIZE 128 // 128 * 4 * 4 == 2048 bytes |
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static base_command_hashmap_t *hashed_cmds[HASH_SIZE]; |
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/* |
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============ |
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BaseCmd_FindInBucket |
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Find base command in bucket |
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============ |
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*/ |
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base_command_hashmap_t *BaseCmd_FindInBucket( base_command_hashmap_t *bucket, base_command_type_e type, const char *name ) |
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{ |
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base_command_hashmap_t *i = bucket; |
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for( ; i && ( i->type != type || Q_stricmp( name, i->name ) ); // filter out |
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i = i->next ); |
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return i; |
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} |
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/* |
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============ |
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BaseCmd_GetBucket |
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Get bucket which contain basecmd by given name |
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============ |
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*/ |
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base_command_hashmap_t *BaseCmd_GetBucket( const char *name ) |
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{ |
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return hashed_cmds[ COM_HashKey( name, HASH_SIZE ) ]; |
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} |
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/* |
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============ |
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BaseCmd_Find |
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Find base command in hashmap |
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============ |
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*/ |
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base_command_t *BaseCmd_Find( base_command_type_e type, const char *name ) |
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{ |
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base_command_hashmap_t *base = BaseCmd_GetBucket( name ); |
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base_command_hashmap_t *found = BaseCmd_FindInBucket( base, type, name ); |
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if( found ) |
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return found->basecmd; |
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return NULL; |
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} |
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/* |
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============ |
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BaseCmd_Find |
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Find every type of base command and write into arguments |
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============ |
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*/ |
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void BaseCmd_FindAll(const char *name, base_command_t **cmd, base_command_t **alias, base_command_t **cvar) |
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{ |
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base_command_hashmap_t *base = BaseCmd_GetBucket( name ); |
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base_command_hashmap_t *i = base; |
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ASSERT( cmd && alias && cvar ); |
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*cmd = *alias = *cvar = NULL; |
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for( ; i; i = i->next ) |
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{ |
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if( !Q_stricmp( i->name, name ) ) |
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{ |
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switch( i->type ) |
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{ |
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case HM_CMD: |
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*cmd = i->basecmd; |
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break; |
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case HM_CMDALIAS: |
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*alias = i->basecmd; |
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break; |
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case HM_CVAR: |
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*cvar = i->basecmd; |
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break; |
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default: break; |
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} |
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} |
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} |
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} |
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/* |
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============ |
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BaseCmd_Insert |
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Add new typed base command to hashmap |
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============ |
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*/ |
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void BaseCmd_Insert( base_command_type_e type, base_command_t *basecmd, const char *name ) |
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{ |
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uint hash = COM_HashKey( name, HASH_SIZE ); |
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base_command_hashmap_t *elem; |
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elem = Z_Malloc( sizeof( base_command_hashmap_t ) ); |
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elem->basecmd = basecmd; |
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elem->type = type; |
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elem->name = name; |
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elem->next = hashed_cmds[hash]; |
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hashed_cmds[hash] = elem; |
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} |
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/* |
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============ |
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BaseCmd_Replace |
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Used in case, when basecmd has been registered, but gamedll wants to register it's own |
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============ |
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*/ |
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qboolean BaseCmd_Replace( base_command_type_e type, base_command_t *basecmd, const char *name ) |
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{ |
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base_command_hashmap_t *i = BaseCmd_GetBucket( name ); |
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for( ; i && ( i->type != type || Q_stricmp( name, i->name ) ) ; // filter out |
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i = i->next ); |
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if( !i ) |
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{ |
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Con_Reportf( S_ERROR "BaseCmd_Replace: couldn't find %s\n", name); |
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return false; |
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} |
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i->basecmd = basecmd; |
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i->name = name; // may be freed after |
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return true; |
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} |
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/* |
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============ |
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BaseCmd_Remove |
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Remove base command from hashmap |
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============ |
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*/ |
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void BaseCmd_Remove( base_command_type_e type, const char *name ) |
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{ |
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uint hash = COM_HashKey( name, HASH_SIZE ); |
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base_command_hashmap_t *i, *prev; |
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for( prev = NULL, i = hashed_cmds[hash]; i && |
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( Q_strcmp( i->name, name ) || i->type != type); // filter out |
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prev = i, i = i->next ); |
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if( !i ) |
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{ |
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Con_Reportf( S_ERROR "Couldn't find %s in buckets\n", name ); |
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return; |
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} |
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if( prev ) |
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prev->next = i->next; |
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else |
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hashed_cmds[hash] = i->next; |
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Z_Free( i ); |
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} |
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/* |
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============ |
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BaseCmd_Init |
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initialize base command hashmap system |
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============ |
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*/ |
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void BaseCmd_Init( void ) |
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{ |
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memset( hashed_cmds, 0, sizeof( hashed_cmds ) ); |
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} |
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/* |
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============ |
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BaseCmd_Stats_f |
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============ |
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*/ |
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void BaseCmd_Stats_f( void ) |
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{ |
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int i, minsize = 99999, maxsize = -1, empty = 0; |
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for( i = 0; i < HASH_SIZE; i++ ) |
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{ |
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base_command_hashmap_t *hm; |
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int len = 0; |
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// count bucket length |
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for( hm = hashed_cmds[i]; hm; hm = hm->next, len++ ); |
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if( len == 0 ) |
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{ |
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empty++; |
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continue; |
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} |
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if( len < minsize ) |
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minsize = len; |
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if( len > maxsize ) |
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maxsize = len; |
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} |
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Con_Printf( "Base command stats:\n"); |
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Con_Printf( "Bucket minimal length: %d\n", minsize ); |
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Con_Printf( "Bucket maximum length: %d\n", maxsize ); |
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Con_Printf( "Empty buckets: %d\n", empty ); |
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} |
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static void BaseCmd_CheckCvars( const char *key, const char *value, void *buffer, void *ptr ) |
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{ |
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base_command_t *v = BaseCmd_Find( HM_CVAR, key ); |
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qboolean *invalid = ptr; |
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if( !v ) |
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{ |
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Con_Printf( "Cvar %s is missing in basecmd\n", key ); |
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*invalid = true; |
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} |
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} |
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/* |
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============ |
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BaseCmd_Stats_f |
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testing order matches cbuf execute |
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============ |
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*/ |
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void BaseCmd_Test_f( void ) |
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{ |
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void *cmd; |
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cmdalias_t *a; |
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qboolean invalid = false; |
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// Cmd_LookupCmds don't allows to check alias, so just iterate |
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for( a = Cmd_AliasGetList(); a; a = a->next ) |
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{ |
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base_command_t *v = BaseCmd_Find( HM_CMDALIAS, a->name ); |
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if( !v ) |
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{ |
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Con_Printf( "Alias %s is missing in basecmd\n", a->name ); |
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invalid = true; |
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} |
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} |
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for( cmd = Cmd_GetFirstFunctionHandle(); cmd; |
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cmd = Cmd_GetNextFunctionHandle( cmd ) ) |
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{ |
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base_command_t *v = BaseCmd_Find( HM_CMD, Cmd_GetName( cmd ) ); |
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if( !v ) |
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{ |
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Con_Printf( "Command %s is missing in basecmd\n", Cmd_GetName( cmd ) ); |
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invalid = true; |
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} |
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} |
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Cvar_LookupVars( 0, NULL, &invalid, BaseCmd_CheckCvars ); |
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if( !invalid ) |
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{ |
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Con_Printf( "BaseCmd is valid\n" ); |
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} |
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}
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