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cmdutils: add support for caller-provided option context.

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This is the first step to removing the globals plague from avtools.
This commit is contained in:
Anton Khirnov
2011-08-28 14:43:54 +02:00
parent 7efe05ab29
commit 7cc8d6385a
7 changed files with 26 additions and 16 deletions
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10
cmdutils.h
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@ -124,9 +124,13 @@ typedef struct {
#define OPT_INT64 0x0400
#define OPT_EXIT 0x0800
#define OPT_DATA 0x1000
#define OPT_FUNC2 0x2000
#define OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */
union {
void *dst_ptr;
int (*func_arg)(const char *, const char *);
int (*func2_arg)(void *, const char *, const char *);
size_t off;
} u;
const char *help;
const char *argname;
@ -136,14 +140,16 @@ void show_help_options(const OptionDef *options, const char *msg, int mask, int
/**
* Parse the command line arguments.
*
* @param optctx an opaque options context
* @param options Array with the definitions required to interpret every
* option of the form: -option_name [argument]
* @param parse_arg_function Name of the function called to process every
* argument without a leading option name flag. NULL if such arguments do
* not have to be processed.
*/
void parse_options(int argc, char **argv, const OptionDef *options,
void (* parse_arg_function)(const char*));
void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
void (* parse_arg_function)(void *optctx, const char*));
/**
* Check if the given stream matches a stream specifier.