512 lines
18 KiB
SourcePawn
512 lines
18 KiB
SourcePawn
/**
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* vim: set ts=4 :
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* =============================================================================
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* SourceMod (C)2004-2008 AlliedModders LLC. All rights reserved.
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* =============================================================================
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*
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* This file is part of the SourceMod/SourcePawn SDK.
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, version 3.0, as published by the
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* Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* As a special exception, AlliedModders LLC gives you permission to link the
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* code of this program (as well as its derivative works) to "Half-Life 2," the
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* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
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* by the Valve Corporation. You must obey the GNU General Public License in
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* all respects for all other code used. Additionally, AlliedModders LLC grants
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* this exception to all derivative works. AlliedModders LLC defines further
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* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
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* or <http://www.sourcemod.net/license.php>.
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*
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* Version: $Id$
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*/
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#if defined _functions_included
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#endinput
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#endif
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#define _functions_included
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#define SP_PARAMFLAG_BYREF (1<<0) /**< Internal use only. */
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/**
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* Describes the various ways to pass parameters to functions or forwards.
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*/
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enum ParamType
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{
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Param_Any = 0, /**< Any data type can be pushed */
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Param_Cell = (1<<1), /**< Only basic cells can be pushed */
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Param_Float = (2<<1), /**< Only floats can be pushed */
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Param_String = (3<<1)|SP_PARAMFLAG_BYREF, /**< Only strings can be pushed */
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Param_Array = (4<<1)|SP_PARAMFLAG_BYREF, /**< Only arrays can be pushed */
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Param_VarArgs = (5<<1), /**< Same as "..." in plugins, anything can be pushed, but it will always be byref */
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Param_CellByRef = (1<<1)|SP_PARAMFLAG_BYREF, /**< Only a cell by reference can be pushed */
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Param_FloatByRef = (2<<1)|SP_PARAMFLAG_BYREF /**< Only a float by reference can be pushed */
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};
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/**
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* Defines how a forward iterates through plugin functions.
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*/
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enum ExecType
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{
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ET_Ignore = 0, /**< Ignore all return values, return 0 */
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ET_Single = 1, /**< Only return the last exec, ignore all others */
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ET_Event = 2, /**< Acts as an event with the Actions defined in core.inc, no mid-Stops allowed, returns highest */
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ET_Hook = 3 /**< Acts as a hook with the Actions defined in core.inc, mid-Stops allowed, returns highest */
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};
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/**
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* @section Flags that are used with Call_PushArrayEx() and Call_PushStringEx()
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*/
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#define SM_PARAM_COPYBACK (1<<0) /**< Copy an array/reference back after call */
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#define SM_PARAM_STRING_UTF8 (1<<0) /**< String should be UTF-8 handled */
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#define SM_PARAM_STRING_COPY (1<<1) /**< String should be copied into the plugin */
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#define SM_PARAM_STRING_BINARY (1<<2) /**< Treat the string as a binary string */
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/**
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* @endsection
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*/
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/**
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* @section Error codes
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*/
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#define SP_ERROR_NONE 0 /**< No error occurred */
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#define SP_ERROR_FILE_FORMAT 1 /**< File format unrecognized */
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#define SP_ERROR_DECOMPRESSOR 2 /**< A decompressor was not found */
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#define SP_ERROR_HEAPLOW 3 /**< Not enough space left on the heap */
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#define SP_ERROR_PARAM 4 /**< Invalid parameter or parameter type */
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#define SP_ERROR_INVALID_ADDRESS 5 /**< A memory address was not valid */
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#define SP_ERROR_NOT_FOUND 6 /**< The object in question was not found */
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#define SP_ERROR_INDEX 7 /**< Invalid index parameter */
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#define SP_ERROR_STACKLOW 8 /**< Nnot enough space left on the stack */
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#define SP_ERROR_NOTDEBUGGING 9 /**< Debug mode was not on or debug section not found */
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#define SP_ERROR_INVALID_INSTRUCTION 10 /**< Invalid instruction was encountered */
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#define SP_ERROR_MEMACCESS 11 /**< Invalid memory access */
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#define SP_ERROR_STACKMIN 12 /**< Stack went beyond its minimum value */
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#define SP_ERROR_HEAPMIN 13 /**< Heap went beyond its minimum value */
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#define SP_ERROR_DIVIDE_BY_ZERO 14 /**< Division by zero */
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#define SP_ERROR_ARRAY_BOUNDS 15 /**< Array index is out of bounds */
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#define SP_ERROR_INSTRUCTION_PARAM 16 /**< Instruction had an invalid parameter */
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#define SP_ERROR_STACKLEAK 17 /**< A native leaked an item on the stack */
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#define SP_ERROR_HEAPLEAK 18 /**< A native leaked an item on the heap */
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#define SP_ERROR_ARRAY_TOO_BIG 19 /**< A dynamic array is too big */
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#define SP_ERROR_TRACKER_BOUNDS 20 /**< Tracker stack is out of bounds */
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#define SP_ERROR_INVALID_NATIVE 21 /**< Native was pending or invalid */
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#define SP_ERROR_PARAMS_MAX 22 /**< Maximum number of parameters reached */
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#define SP_ERROR_NATIVE 23 /**< Error originates from a native */
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#define SP_ERROR_NOT_RUNNABLE 24 /**< Function or plugin is not runnable */
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#define SP_ERROR_ABORTED 25 /**< Function call was aborted */
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/**
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* @endsection
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*/
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/**
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* Gets a function id from a function name.
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*
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* @param plugin Handle of the plugin that contains the function.
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Pass INVALID_HANDLE to search in the calling plugin.
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* @param name Name of the function.
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* @return Function id or INVALID_FUNCTION if not found.
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* @error Invalid or corrupt plugin handle.
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*/
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native Function:GetFunctionByName(Handle:plugin, const String:name[]);
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/**
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* Creates a global forward.
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*
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* @note The name used to create the forward is used as its public function in all target plugins.
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* @note This is ideal for global, static forwards that are never changed.
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* @note Global forwards cannot be cloned.
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* @note Use CloseHandle() to destroy these.
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*
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* @param name Name of public function to use in forward.
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* @param type Execution type to be used.
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* @param ... Variable number of parameter types (up to 32).
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* @return Handle to new global forward.
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* @error More than 32 paramater types passed.
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*/
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native Handle:CreateGlobalForward(const String:name[], ExecType:type, ParamType:...);
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/**
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* Creates a private forward.
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*
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* @note No functions are automatically added. Use AddToForward() to do this.
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* @note Private forwards can be cloned.
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* @note Use CloseHandle() to destroy these.
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*
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* @param type Execution type to be used.
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* @param ... Variable number of parameter types (up to 32).
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* @return Handle to new private forward.
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* @error More than 32 paramater types passed.
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*/
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native Handle:CreateForward(ExecType:type, ParamType:...);
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/**
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* Returns the number of functions in a global or private forward's call list.
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*
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* @param fwd Handle to global or private forward.
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* @return Number of functions in forward.
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* @error Invalid or corrupt forward handle.
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*/
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native GetForwardFunctionCount(Handle:fwd);
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/**
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* Adds a function to a private forward's call list.
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*
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* @note Cannot be used during an incompleted call.
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*
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* @param fwd Handle to private forward.
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* @param plugin Handle of the plugin that contains the function.
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* Pass INVALID_HANDLE to specify the calling plugin.
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* @param func Function to add to forward.
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* @return True on success, false otherwise.
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* @error Invalid or corrupt private forward handle, invalid or corrupt plugin handle, or invalid function.
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*/
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native bool:AddToForward(Handle:fwd, Handle:plugin, Function:func);
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/**
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* Removes a function from a private forward's call list.
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*
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* @note Only removes one instance.
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* @note Functions will be removed automatically if their parent plugin is unloaded.
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*
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* @param fwd Handle to private forward.
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* @param plugin Handle of the plugin that contains the function.
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* Pass INVALID_HANDLE to specify the calling plugin.
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* @param func Function to remove from forward.
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* @return True on success, false otherwise.
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* @error Invalid or corrupt private forward handle, invalid or corrupt plugin handle, or invalid function.
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*/
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native bool:RemoveFromForward(Handle:fwd, Handle:plugin, Function:func);
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/**
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* Removes all instances of a plugin from a private forward's call list.
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*
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* @note Functions will be removed automatically if their parent plugin is unloaded.
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*
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* @param fwd Handle to private forward.
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* @param plugin Handle of the plugin to remove instances of.
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* Pass INVALID_HANDLE to specify the calling plugin.
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* @return Number of functions removed from forward.
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* @error Invalid or corrupt private forward handle or invalid or corrupt plugin handle.
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*/
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native RemoveAllFromForward(Handle:fwd, Handle:plugin);
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/**
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* Starts a call to functions in a forward's call list.
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*
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* @note Cannot be used during an incompleted call.
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*
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* @param fwd Handle to global or private forward.
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* @noreturn
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* @error Invalid or corrupt forward handle or called before another call has completed.
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*/
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native Call_StartForward(Handle:fwd);
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/**
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* Starts a call to a function.
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*
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* @note Cannot be used during an incompleted call.
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*
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* @param plugin Handle of the plugin that contains the function.
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* Pass INVALID_HANDLE to specify the calling plugin.
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* @param func Function to call.
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* @noreturn
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* @error Invalid or corrupt plugin handle, invalid function, or called before another call has completed.
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*/
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native Call_StartFunction(Handle:plugin, Function:func);
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/**
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* Pushes a cell onto the current call.
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*
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* @note Cannot be used before a call has been started.
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*
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* @param value Cell value to push.
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* @noreturn
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* @error Called before a call has been started.
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*/
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native Call_PushCell(any:value);
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/**
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* Pushes a cell by reference onto the current call.
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*
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* @note Cannot be used before a call has been started.
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*
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* @param value Cell reference to push.
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* @noreturn
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* @error Called before a call has been started.
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*/
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native Call_PushCellRef(&any:value);
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/**
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* Pushes a float onto the current call.
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*
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* @note Cannot be used before a call has been started.
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*
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* @param value Floating point value to push.
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* @noreturn
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* @error Called before a call has been started.
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*/
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native Call_PushFloat(Float:value);
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/**
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* Pushes a float by reference onto the current call.
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*
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* @note Cannot be used before a call has been started.
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*
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* @param value Floating point reference to push.
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* @noreturn
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* @error Called before a call has been started.
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*/
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native Call_PushFloatRef(&Float:value);
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/**
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* Pushes an array onto the current call.
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*
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* @note Changes to array are not copied back to caller. Use PushArrayEx() to do this.
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* @note Cannot be used before a call has been started.
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*
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* @param value Array to push.
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* @param size Size of array.
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* @noreturn
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* @error Called before a call has been started.
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*/
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native Call_PushArray(const any:value[], size);
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/**
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* Pushes an array onto the current call.
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*
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* @note Cannot be used before a call has been started.
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*
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* @param value Array to push.
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* @param size Size of array.
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* @param cpflags Whether or not changes should be copied back to the input array.
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* See SP_PARAM_* constants for details.
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* @noreturn
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* @error Called before a call has been started.
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*/
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native Call_PushArrayEx(any:value[], size, cpflags);
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/**
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* Pushes a string onto the current call.
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*
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* @note Changes to string are not copied back to caller. Use PushStringEx() to do this.
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* @note Cannot be used before a call has been started.
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*
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* @param value String to push.
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* @noreturn
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* @error Called before a call has been started.
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*/
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native Call_PushString(const String:value[]);
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/**
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* Pushes a string onto the current call.
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*
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* @note Cannot be used before a call has been started.
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*
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* @param value String to push.
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* @param length Length of string buffer.
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* @param szflags Flags determining how string should be handled.
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* See SP_PARAM_STRING_* constants for details.
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* The default (0) is to push ASCII.
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* @param cpflags Whether or not changes should be copied back to the input array.
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* See SP_PARAM_* constants for details.
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* @noreturn
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* @error Called before a call has been started.
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*/
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native Call_PushStringEx(String:value[], length, szflags, cpflags);
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/**
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* Completes a call to a function or forward's call list.
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*
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* @note Cannot be used before a call has been started.
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*
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* @param result Return value of function or forward's call list.
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* @return SP_ERROR_NONE on success, any other integer on failure.
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* @error Called before a call has been started.
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*/
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native Call_Finish(&any:result=0);
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/**
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* Cancels a call to a function or forward's call list.
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*
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* @note Cannot be used before a call has been started.
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*
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* @noreturn
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* @error Called before a call has been started.
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*/
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native Call_Cancel();
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/**
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* Defines a native function.
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*
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* It is not necessary to validate the parameter count
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*
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* @param plugin Handle of the calling plugin.
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* @param numParams Number of parameters passed to the native.
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* @return Value for the native call to return.
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*/
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functag public NativeCall(Handle:plugin, numParams);
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/**
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* Creates a dynamic native. This should only be called in AskPluginLoad(), or
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* else you risk not having your native shared with other plugins.
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*
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* @param name Name of the dynamic native; must be unique amongst
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* all other registered dynamic natives.
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* @param func Function to use as the dynamic native.
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* @noreturn
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*/
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native CreateNative(const String:name[], NativeCall:func);
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/**
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* Throws an error in the calling plugin of a native, instead of your own plugin.
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*
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* @param error Error code to use.
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* @param fmt Error message format.
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* @param ... Format arguments.
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*/
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native ThrowNativeError(error, const String:fmt[], any:...);
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/**
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* Retrieves the string length from a native parameter string. This is useful
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* fetching the entire string using dynamic arrays.
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* @note If this function succeeds, Get/SetNativeString will also succeed.
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*
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* @param param Parameter number, starting from 1.
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* @param length Stores the length of the string.
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* @return SP_ERROR_NONE on success, any other integer on failure.
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* @error Invalid parameter number or calling from a non-native function.
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*/
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native GetNativeStringLength(param, &length);
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/**
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* Retrieves a string from a native parameter.
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* @note Output conditions are undefined on failure.
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*
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* @param param Parameter number, starting from 1.
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* @param buffer Buffer to store the string in.
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* @param maxlength Maximum length of the buffer.
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* @param bytes Optionally store the number of bytes written.
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* @return SP_ERROR_NONE on success, any other integer on failure.
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* @error Invalid parameter number or calling from a non-native function.
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*/
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native GetNativeString(param, String:buffer[], maxlength, &bytes=0);
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/**
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* Sets a string in a native parameter.
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* @note Output conditions are undefined on failure.
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*
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* @param param Parameter number, starting from 1.
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* @param source Source string to use.
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* @param maxlength Maximum number of bytes to write.
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* @param utf8 If false, string will not be written
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* with UTF8 safety.
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* @param bytes Optionally store the number of bytes written.
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* @return SP_ERROR_NONE on success, any other integer on failure.
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* @error Invalid parameter number or calling from a non-native function.
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*/
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native SetNativeString(param, const String:source[], maxlength, bool:utf8=true, &bytes=0);
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/**
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* Gets a cell from a native parameter.
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*
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* @param param Parameter number, starting from 1.
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* @return Cell value at the parameter number.
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* @error Invalid parameter number or calling from a non-native function.
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*/
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native any:GetNativeCell(param);
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/**
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* Gets a cell from a native parameter, by reference.
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*
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* @param param Parameter number, starting from 1.
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* @return Cell value at the parameter number.
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* @error Invalid parameter number or calling from a non-native function.
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*/
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native any:GetNativeCellRef(param);
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/**
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* Sets a cell from a native parameter, by reference.
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*
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* @param param Parameter number, starting from 1.
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* @param value Cell value at the parameter number to set by reference.
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* @noreturn
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* @error Invalid parameter number or calling from a non-native function.
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*/
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native SetNativeCellRef(param, any:value);
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/**
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* Gets an array from a native parameter (always by reference).
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*
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* @param param Parameter number, starting from 1.
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* @param local Local array to copy into.
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* @param size Maximum size of local array.
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* @return SP_ERROR_NONE on success, anything else on failure.
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* @error Invalid parameter number or calling from a non-native function.
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*/
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native GetNativeArray(param, any:local[], size);
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/**
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* Copies a local array into a native parameter array (always by reference).
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*
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* @param param Parameter number, starting from 1.
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* @param local Local array to copy from.
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* @param size Size of the local array to copy.
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* @return SP_ERROR_NONE on success, anything else on failure.
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* @error Invalid parameter number or calling from a non-native function.
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*/
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native SetNativeArray(param, const any:local[], size);
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/**
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* Formats a string using parameters from a native.
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*
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* @note All parameter indexes start at 1.
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* @note If the input and output buffers overlap, the contents
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* of the output buffer at the end is undefined.
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*
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* @param out_param Output parameter number to write to. If 0, out_string is used.
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* @param fmt_param Format parameter number. If 0, fmt_string is used.
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* @param vararg_param First variable parameter number.
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* @param out_len Output string buffer maximum length (always required).
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* @param written Optionally stores the number of bytes written.
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* @param out_string Output string buffer to use if out_param is not used.
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* @param fmt_string Format string to use if fmt_param is not used.
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* @return SP_ERROR_NONE on success, anything else on failure.
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*/
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native FormatNativeString(out_param,
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fmt_param,
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vararg_param,
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out_len,
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&written=0,
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String:out_string[]="",
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const String:fmt_string[]="");
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/**
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* Defines a RequestFrame Callback.
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*
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* @param data Data passed to the RequestFrame native.
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* @noreturn
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*/
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functag public RequestFrameCallback(any:data);
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/**
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* Creates a single use Next Frame hook.
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*
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* @param Function Function to call on the next frame.
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* @param data Value to be passed on the invocation of the Function.
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* @noreturn
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*/
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native RequestFrame(RequestFrameCallback:Function, any:data=0);
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