+/* Licensed under GPLv3+ - see LICENSE file for details */
#ifndef CCAN_OPT_H
#define CCAN_OPT_H
#include <ccan/compiler/compiler.h>
#include <ccan/typesafe_cb/typesafe_cb.h>
#include <stdbool.h>
+#include <stdlib.h>
struct opt_table;
* OPT_WITH_ARG()
*/
#define OPT_WITHOUT_ARG(names, cb, arg, desc) \
- { (names), OPT_CB_NOARG((cb), (arg)), (desc) }
+ { (names), OPT_CB_NOARG((cb), (arg)), { (arg) }, (desc) }
/**
* OPT_WITH_ARG() - macro for initializing long and short option (with arg)
* OPT_WITHOUT_ARG()
*/
#define OPT_WITH_ARG(name, cb, show, arg, desc) \
- { (name), OPT_CB_ARG((cb), (show), (arg)), (desc) }
+ { (name), OPT_CB_ARG((cb), (show), (arg)), { (arg) }, (desc) }
/**
* OPT_SUBTABLE() - macro for including another table inside a table.
*/
#define OPT_SUBTABLE(table, desc) \
{ (const char *)(table), OPT_SUBTABLE, \
- sizeof(_check_is_entry(table)) ? NULL : NULL, NULL, NULL, NULL, (desc) }
+ sizeof(_check_is_entry(table)) ? NULL : NULL, NULL, NULL, \
+ { NULL }, (desc) }
/**
* OPT_ENDTABLE - macro to create final entry in table.
*
* This must be the final element in the opt_table array.
*/
-#define OPT_ENDTABLE { NULL, OPT_END, NULL, NULL, NULL, NULL, NULL }
+#define OPT_ENDTABLE { NULL, OPT_END, NULL, NULL, NULL, { NULL }, NULL }
/**
* opt_register_table - register a table of options
* string and return false.
*/
#define opt_register_noarg(names, cb, arg, desc) \
- _opt_register((names), OPT_CB_NOARG((cb), (arg)), (desc))
+ _opt_register((names), OPT_CB_NOARG((cb), (arg)), (arg), (desc))
/**
* opt_register_arg - register an option with an arguments
* opt_register_arg("--explode|--boom", explode, NULL, NULL, opt_hidden);
*/
#define opt_register_arg(names, cb, show, arg, desc) \
- _opt_register((names), OPT_CB_ARG((cb), (show), (arg)), (desc))
+ _opt_register((names), OPT_CB_ARG((cb), (show), (arg)), (arg), (desc))
/**
* opt_parse - parse arguments.
*/
bool opt_parse(int *argc, char *argv[], void (*errlog)(const char *fmt, ...));
+/**
+ * opt_free_table - reset the opt library.
+ *
+ * This frees the internal memory and returns counters to zero. Call
+ * this as the last opt function to avoid memory leaks. You can also
+ * use this function to reset option handling to its initial state (no
+ * options registered).
+ */
+void opt_free_table(void);
+
/**
* opt_log_stderr - print message to stderr.
* @fmt: printf-style format.
char *opt_set_ulongval(const char *arg, unsigned long *ul);
void opt_show_ulongval(char buf[OPT_SHOW_LEN], const unsigned long *ul);
+/* the following setting functions accept k, M, G, T, P, or E suffixes, which
+ multiplies the numeric value by the corresponding power of 1000 or 1024
+ (for the _si and _bi versions, respectively).
+ */
+char *opt_set_intval_bi(const char *arg, int *i);
+char *opt_set_intval_si(const char *arg, int *i);
+char *opt_set_uintval_bi(const char *arg, unsigned int *u);
+char *opt_set_uintval_si(const char *arg, unsigned int *u);
+char *opt_set_longval_bi(const char *arg, long *l);
+char *opt_set_longval_si(const char *arg, long *l);
+char *opt_set_ulongval_bi(const char *arg, unsigned long *ul);
+char *opt_set_ulongval_si(const char *arg, unsigned long *ul);
+char *opt_set_longlongval_bi(const char *arg, long long *ll);
+char *opt_set_longlongval_si(const char *arg, long long *ll);
+char *opt_set_ulonglongval_bi(const char *arg, unsigned long long *ll);
+char *opt_set_ulonglongval_si(const char *arg, unsigned long long *ll);
+
+
+void opt_show_intval_bi(char buf[OPT_SHOW_LEN], const int *x);
+void opt_show_longval_bi(char buf[OPT_SHOW_LEN], const long *x);
+void opt_show_longlongval_bi(char buf[OPT_SHOW_LEN], const long long *x);
+void opt_show_uintval_bi(char buf[OPT_SHOW_LEN], const unsigned int *x);
+void opt_show_ulongval_bi(char buf[OPT_SHOW_LEN], const unsigned long *x);
+void opt_show_ulonglongval_bi(char buf[OPT_SHOW_LEN], const unsigned long long *x);
+
+void opt_show_intval_si(char buf[OPT_SHOW_LEN], const int *x);
+void opt_show_longval_si(char buf[OPT_SHOW_LEN], const long *x);
+void opt_show_longlongval_si(char buf[OPT_SHOW_LEN], const long long *x);
+void opt_show_uintval_si(char buf[OPT_SHOW_LEN], const unsigned int *x);
+void opt_show_ulongval_si(char buf[OPT_SHOW_LEN], const unsigned long *x);
+void opt_show_ulonglongval_si(char buf[OPT_SHOW_LEN], const unsigned long long *x);
+
+
+
+
/* Increment. */
char *opt_inc_intval(int *i);
char *(*cb)(void *arg); /* OPT_NOARG */
char *(*cb_arg)(const char *optarg, void *arg); /* OPT_HASARG */
void (*show)(char buf[OPT_SHOW_LEN], const void *arg);
- void *arg;
+ union {
+ const void *carg;
+ void *arg;
+ size_t tlen;
+ } u;
const char *desc;
};
/* Resolves to the four parameters for non-arg callbacks. */
#define OPT_CB_NOARG(cb, arg) \
OPT_NOARG, \
- cast_if_any(char *(*)(void *), (cb), (cb)+0, \
- char *(*)(typeof(*(arg))*), \
- char *(*)(const typeof(*(arg))*), \
- char *(*)(const void *)), \
- NULL, NULL, (arg)
+ typesafe_cb_cast3(char *(*)(void *), \
+ char *(*)(typeof(*(arg))*), \
+ char *(*)(const typeof(*(arg))*), \
+ char *(*)(const void *), (cb)), \
+ NULL, NULL
/* Resolves to the four parameters for arg callbacks. */
#define OPT_CB_ARG(cb, show, arg) \
OPT_HASARG, NULL, \
- cast_if_any(char *(*)(const char *,void *), (cb), (cb)+0, \
- char *(*)(const char *, typeof(*(arg))*), \
- char *(*)(const char *, const typeof(*(arg))*), \
- char *(*)(const char *, const void *)), \
- cast_if_type(void (*)(char buf[], const void *), (show), (show)+0, \
- void (*)(char buf[], const typeof(*(arg))*)), \
- (arg)
+ typesafe_cb_cast3(char *(*)(const char *,void *), \
+ char *(*)(const char *, typeof(*(arg))*), \
+ char *(*)(const char *, const typeof(*(arg))*), \
+ char *(*)(const char *, const void *), \
+ (cb)), \
+ typesafe_cb_cast(void (*)(char buf[], const void *), \
+ void (*)(char buf[], const typeof(*(arg))*), (show))
/* Non-typesafe register function. */
void _opt_register(const char *names, enum opt_type type,
char *(*cb)(void *arg),
char *(*cb_arg)(const char *optarg, void *arg),
void (*show)(char buf[OPT_SHOW_LEN], const void *arg),
- void *arg, const char *desc);
+ const void *arg, const char *desc);
/* We use this to get typechecking for OPT_SUBTABLE */
static inline int _check_is_entry(struct opt_table *e UNUSED) { return 0; }