Edit: my_getopt.h
/* Copyright (c) 2002, 2013, Oracle and/or its affiliates. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ #ifndef _my_getopt_h #define _my_getopt_h #include "my_sys.h" /* loglevel */ /* my_getopt and my_default are almost always used together */ #include <my_default.h> C_MODE_START #define GET_NO_ARG 1 #define GET_BOOL 2 #define GET_INT 3 #define GET_UINT 4 #define GET_LONG 5 #define GET_ULONG 6 #define GET_LL 7 #define GET_ULL 8 #define GET_STR 9 #define GET_STR_ALLOC 10 #define GET_DISABLED 11 #define GET_ENUM 12 #define GET_SET 13 #define GET_DOUBLE 14 #define GET_FLAGSET 15 #define GET_BIT 16 #define GET_ASK_ADDR 128 #define GET_AUTO 64 #define GET_TYPE_MASK 63 /** Enumeration of the my_option::arg_type attributes. It should be noted that for historical reasons variables with the combination arg_type=NO_ARG, my_option::var_type=GET_BOOL still accepts arguments. This is someone counter intuitive and care should be taken if the code is refactored. */ enum get_opt_arg_type { NO_ARG, OPT_ARG, REQUIRED_ARG }; struct st_typelib; struct my_option { const char *name; /**< Name of the option. name=NULL marks the end of the my_option[] array. */ int id; /**< For 0<id<255 it's means one character for a short option (like -A), if >255 no short option is created, but a long option still can be identified uniquely in the my_get_one_option() callback. If an opton needs neither special treatment in the my_get_one_option() nor one-letter short equivalent use id=0 */ const char *comment; /**< option comment, for autom. --help. if it's NULL the option is not visible in --help. */ void *value; /**< A pointer to the variable value */ void *u_max_value; /**< The user def. max variable value */ struct st_typelib *typelib; /**< Pointer to possible values */ ulong var_type; /**< GET_BOOL, GET_ULL, etc */ enum get_opt_arg_type arg_type; /**< e.g. REQUIRED_ARG or OPT_ARG */ longlong def_value; /**< Default value */ longlong min_value; /**< Min allowed value (for numbers) */ ulonglong max_value; /**< Max allowed value (for numbers) */ longlong sub_size; /**< Unused */ long block_size; /**< Value should be a mult. of this (for numbers) */ void *app_type; /**< To be used by an application */ }; typedef my_bool (*my_get_one_option)(const struct my_option *, const char *, const char *); /** Used to retrieve a reference to the object (variable) that holds the value for the given option. For example, if var_type is GET_UINT, the function must return a pointer to a variable of type uint. A argument is stored in the location pointed to by the returned pointer. */ typedef void *(*my_getopt_value)(const char *, uint, const struct my_option *, int *); extern char *disabled_my_option; extern char *autoset_my_option; extern my_bool my_getopt_print_errors; extern my_bool my_getopt_skip_unknown; extern my_bool my_getopt_prefix_matching; extern my_bool my_handle_options_init_variables; extern my_error_reporter my_getopt_error_reporter; extern my_getopt_value my_getopt_get_addr; extern int handle_options (int *argc, char ***argv, const struct my_option *longopts, my_get_one_option) __attribute__((nonnull)); extern void my_cleanup_options(const struct my_option *options); extern void my_print_help(const struct my_option *options); extern void my_print_variables(const struct my_option *options); ulonglong getopt_ull_limit_value(ulonglong num, const struct my_option *optp, my_bool *fix); longlong getopt_ll_limit_value(longlong, const struct my_option *, my_bool *fix); double getopt_double_limit_value(double num, const struct my_option *optp, my_bool *fix); ulonglong getopt_double2ulonglong(double); double getopt_ulonglong2double(ulonglong); C_MODE_END #endif /* _my_getopt_h */
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