diff options
Diffstat (limited to 'amend/commands.c')
| -rw-r--r-- | amend/commands.c | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/amend/commands.c b/amend/commands.c deleted file mode 100644 index 78121adf1..000000000 --- a/amend/commands.c +++ /dev/null @@ -1,229 +0,0 @@ -/* - * Copyright (C) 2007 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stdlib.h> -#include <string.h> -#include <stdio.h> -#include "symtab.h" -#include "commands.h" - -#if 1 -#define TRACE(...) printf(__VA_ARGS__) -#else -#define TRACE(...) /**/ -#endif - -typedef enum { - CMD_TYPE_UNKNOWN = -1, - CMD_TYPE_COMMAND = 0, - CMD_TYPE_FUNCTION -} CommandType; - -typedef struct { - const char *name; - void *cookie; - CommandType type; - CommandArgumentType argType; - CommandHook hook; -} CommandEntry; - -static struct { - SymbolTable *symbolTable; - bool commandStateInitialized; -} gCommandState; - -int -commandInit() -{ - if (gCommandState.commandStateInitialized) { - return -1; - } - gCommandState.symbolTable = createSymbolTable(); - if (gCommandState.symbolTable == NULL) { - return -1; - } - gCommandState.commandStateInitialized = true; - return 0; -} - -void -commandCleanup() -{ - if (gCommandState.commandStateInitialized) { - gCommandState.commandStateInitialized = false; - deleteSymbolTable(gCommandState.symbolTable); - gCommandState.symbolTable = NULL; -//xxx need to free the entries and names in the symbol table - } -} - -static int -registerCommandInternal(const char *name, CommandType type, - CommandArgumentType argType, CommandHook hook, void *cookie) -{ - CommandEntry *entry; - - if (!gCommandState.commandStateInitialized) { - return -1; - } - if (name == NULL || hook == NULL) { - return -1; - } - if (type != CMD_TYPE_COMMAND && type != CMD_TYPE_FUNCTION) { - return -1; - } - if (argType != CMD_ARGS_BOOLEAN && argType != CMD_ARGS_WORDS) { - return -1; - } - - entry = (CommandEntry *)malloc(sizeof(CommandEntry)); - if (entry != NULL) { - entry->name = strdup(name); - if (entry->name != NULL) { - int ret; - - entry->cookie = cookie; - entry->type = type; - entry->argType = argType; - entry->hook = hook; - ret = addToSymbolTable(gCommandState.symbolTable, - entry->name, entry->type, entry); - if (ret == 0) { - return 0; - } - } - free(entry); - } - - return -1; -} - -int -registerCommand(const char *name, - CommandArgumentType argType, CommandHook hook, void *cookie) -{ - return registerCommandInternal(name, - CMD_TYPE_COMMAND, argType, hook, cookie); -} - -int -registerFunction(const char *name, FunctionHook hook, void *cookie) -{ - return registerCommandInternal(name, - CMD_TYPE_FUNCTION, CMD_ARGS_WORDS, (CommandHook)hook, cookie); -} - -Command * -findCommand(const char *name) -{ - return (Command *)findInSymbolTable(gCommandState.symbolTable, - name, CMD_TYPE_COMMAND); -} - -Function * -findFunction(const char *name) -{ - return (Function *)findInSymbolTable(gCommandState.symbolTable, - name, CMD_TYPE_FUNCTION); -} - -CommandArgumentType -getCommandArgumentType(Command *cmd) -{ - CommandEntry *entry = (CommandEntry *)cmd; - - if (entry != NULL) { - return entry->argType; - } - return CMD_ARGS_UNKNOWN; -} - -static int -callCommandInternal(CommandEntry *entry, int argc, const char *argv[]) -{ - if (entry != NULL && entry->argType == CMD_ARGS_WORDS && - (argc == 0 || (argc > 0 && argv != NULL))) - { - int i; - for (i = 0; i < argc; i++) { - if (argv[i] == NULL) { - goto bail; - } - } - TRACE("calling command %s\n", entry->name); - return entry->hook(entry->name, entry->cookie, argc, argv); - } -bail: - return -1; -} - -static int -callBooleanCommandInternal(CommandEntry *entry, bool arg) -{ - if (entry != NULL && entry->argType == CMD_ARGS_BOOLEAN) { - TRACE("calling boolean command %s\n", entry->name); - return entry->hook(entry->name, entry->cookie, arg ? 1 : 0, NULL); - } - return -1; -} - -int -callCommand(Command *cmd, int argc, const char *argv[]) -{ - return callCommandInternal((CommandEntry *)cmd, argc, argv); -} - -int -callBooleanCommand(Command *cmd, bool arg) -{ - return callBooleanCommandInternal((CommandEntry *)cmd, arg); -} - -int -callFunctionInternal(CommandEntry *entry, int argc, const char *argv[], - char **result, size_t *resultLen) -{ - if (entry != NULL && entry->argType == CMD_ARGS_WORDS && - (argc == 0 || (argc > 0 && argv != NULL))) - { - if (result != NULL) - { - /* This is the actual invocation of the function, - * which means that none of the arguments are allowed - * to be NULL. - */ - int i; - for (i = 0; i < argc; i++) { - if (argv[i] == NULL) { - goto bail; - } - } - TRACE("calling function %s\n", entry->name); - return ((FunctionHook)entry->hook)(entry->name, entry->cookie, - argc, argv, result, resultLen); - } - } -bail: - return -1; -} - -int -callFunction(Function *fn, int argc, const char *argv[], - char **result, size_t *resultLen) -{ - return callFunctionInternal((CommandEntry *)fn, argc, argv, - result, resultLen); -} |