qemu-option.h

   1 /*
   2  * Commandline option parsing functions
   3  *
   4  * Copyright (c) 2003-2008 Fabrice Bellard
   5  * Copyright (c) 2009 Kevin Wolf <kwolf@redhat.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23  * THE SOFTWARE.
  24  */
  25
  26 #ifndef QEMU_OPTIONS_H
  27 #define QEMU_OPTIONS_H
  28
  29 enum QEMUOptionParType {
  30     OPT_FLAG,
  31     OPT_NUMBER,
  32     OPT_SIZE,
  33     OPT_STRING,
  34 };
  35
  36 typedef struct QEMUOptionParameter {
  37     const char *name;
  38     enum QEMUOptionParType type;
  39     union {
  40         uint64_t n;
  41         char* s;
  42     } value;
  43     const char *help;
  44 } QEMUOptionParameter;
  45
  46
  47 const char *get_opt_name(char *buf, int buf_size, const char *p, char delim);
  48 const char *get_opt_value(char *buf, int buf_size, const char *p);
  49 int get_next_param_value(char *buf, int buf_size,
  50                          const char *tag, const char **pstr);
  51 int get_param_value(char *buf, int buf_size,
  52                     const char *tag, const char *str);
  53 int check_params(char *buf, int buf_size,
  54                  const char * const *params, const char *str);
  55
  56
  57 /*
  58  * The following functions take a parameter list as input. This is a pointer to
  59  * the first element of a QEMUOptionParameter array which is terminated by an
  60  * entry with entry->name == NULL.
  61  */
  62
  63 QEMUOptionParameter *get_option_parameter(QEMUOptionParameter *list,
  64     const char *name);
  65 int set_option_parameter(QEMUOptionParameter *list, const char *name,
  66     const char *value);
  67 int set_option_parameter_int(QEMUOptionParameter *list, const char *name,
  68     uint64_t value);
  69 QEMUOptionParameter *parse_option_parameters(const char *param,
  70     QEMUOptionParameter *list, QEMUOptionParameter *dest);
  71 void free_option_parameters(QEMUOptionParameter *list);
  72 void print_option_parameters(QEMUOptionParameter *list);
  73 void print_option_help(QEMUOptionParameter *list);
  74
  75 #endif