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lvm2/tools/tools.h

141 lines
2.8 KiB
C

/*
* Copyright (C) 2001 Sistina Software (UK) Limited.
*
* This file is released under the LGPL.
*/
#ifndef _LVM_LVM_H
#define _LVM_LVM_H
#include "pool.h"
#include "dbg_malloc.h"
#include "list.h"
#include "log.h"
#include "lvm-string.h"
#include "lvm-file.h"
#include "metadata.h"
#include "config.h"
#include "dev-cache.h"
#include "device.h"
#include "vgcache.h"
#include "display.h"
#include "errors.h"
#include "filter.h"
#include "filter-persistent.h"
#include "filter-composite.h"
#include "filter-regex.h"
#include "format1.h"
#include "format-text.h"
#include "toollib.h"
#include "activate.h"
#include "archive.h"
#include "locking.h"
#include "toolcontext.h"
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <ctype.h>
#include <string.h>
#include <limits.h>
#define CMD_LEN 256
#define MAX_ARGS 64
/* command functions */
typedef int (*command_fn) (struct cmd_context * cmd, int argc, char **argv);
#define xx(a, b...) int a(struct cmd_context *cmd, int argc, char **argv);
#include "commands.h"
#undef xx
/* define the enums for the command line switches */
enum {
#define arg(a, b, c, d) a ,
#include "args.h"
#undef arg
};
typedef enum {
SIGN_NONE = 0,
SIGN_PLUS = 1,
SIGN_MINUS = 2
} sign_t;
/* a global table of possible arguments */
struct arg {
char short_arg;
char *long_arg;
int (*fn) (struct arg * a);
int count;
char *value;
uint32_t i_value;
sign_t sign;
};
/* a register of the lvm commands */
struct command {
const char *name;
const char *desc;
const char *usage;
command_fn fn;
int num_args;
int *valid_args;
};
void usage(const char *name);
/* the argument verify/normalise functions */
int yes_no_arg(struct arg *a);
int size_arg(struct arg *a);
int int_arg(struct arg *a);
int int_arg_with_sign(struct arg *a);
int minor_arg(struct arg *a);
int string_arg(struct arg *a);
int permission_arg(struct arg *a);
char yes_no_prompt(const char *prompt, ...);
/* we use the enums to access the switches */
static inline int arg_count(struct cmd_context *cmd, int a)
{
return cmd->args[a].count;
}
static inline char *arg_value(struct cmd_context *cmd, int a)
{
return cmd->args[a].value;
}
static inline char *arg_str_value(struct cmd_context *cmd, int a, char *def)
{
return arg_count(cmd, a) ? cmd->args[a].value : def;
}
static inline uint32_t arg_int_value(struct cmd_context *cmd, int a,
uint32_t def)
{
return arg_count(cmd, a) ? cmd->args[a].i_value : def;
}
static inline sign_t arg_sign_value(struct cmd_context *cmd, int a, sign_t def)
{
return arg_count(cmd, a) ? cmd->args[a].sign : def;
}
static inline int arg_count_increment(struct cmd_context *cmd, int a)
{
return cmd->args[a].count++;
}
static inline const char *command_name(struct cmd_context *cmd)
{
return cmd->command->name;
}
#endif