rte_argparse.h(3) DPDK rte_argparse.h(3) NAME rte_argparse.h SYNOPSIS #include <stdbool.h> #include <stdint.h> #include <rte_bitops.h> #include <rte_compat.h> Data Structures struct rte_argparse_arg struct rte_argparse Typedefs typedef int(* rte_arg_parser_t) (uint32_t index, const char *value, void *opaque) Enumerations enum rte_argparse_value_required { RTE_ARGPARSE_VALUE_NONE, RTE_ARG- PARSE_VALUE_REQUIRED, RTE_ARGPARSE_VALUE_OPTIONAL } enum rte_argparse_value_type { RTE_ARGPARSE_VALUE_TYPE_NONE = 0, RTE_ARG- PARSE_VALUE_TYPE_INT, RTE_ARGPARSE_VALUE_TYPE_U8, RTE_ARG- PARSE_VALUE_TYPE_U16, RTE_ARGPARSE_VALUE_TYPE_U32, RTE_ARG- PARSE_VALUE_TYPE_U64, RTE_ARGPARSE_VALUE_TYPE_STR, RTE_ARG- PARSE_VALUE_TYPE_BOOL, RTE_ARGPARSE_VALUE_TYPE_CORELIST } enum rte_argparse_arg_flags { RTE_ARGPARSE_FLAG_SUPPORT_MULTI = RTE_BIT32(0) } Functions __rte_experimental int rte_argparse_parse (const struct rte_argparse *obj, int argc, char **argv) __rte_experimental void rte_argparse_print_help (FILE *stream, const struct rte_argparse *obj) __rte_experimental int rte_argparse_parse_type (const char *str, enum rte_argparse_value_type val_type, void *val) Detailed Description Argument parsing API. The argument parsing API makes it easy to write user-friendly command-line program. The program defines what arguments it requires, and the API will parse those arguments from [argc, argv]. The API provides the following functions: 1) Support parsing optional argu- ment (which could take with no-value, required-value and optional-value. 2) Support parsing positional argument (which must take with required-value). 3) Support automatic generate usage information. 4) Support issue errors when provided with invalid arguments. There are two ways to parse arguments: 1) AutoSave: for which known value types, the way can be used. 2) Callback: will invoke user callback to parse. Definition in file rte_argparse.h. Typedef Documentation typedef int(* rte_arg_parser_t) (uint32_t index, const char *value, void *opaque) Callback prototype used by parsing specified arguments. Parameters index The argument's index, coming from argument's val_set field. value The value corresponding to the argument, it may be NULL (e.g. the argument has no value, or the argument has optional value but doesn't provided value). opaque An opaque pointer coming from the caller. Returns 0 on success. Otherwise negative value is returned. Definition at line 145 of file rte_argparse.h. Enumeration Type Documentation enum rte_argparse_value_required enum defining whether an argument takes a value or not. Enumerator RTE_ARGPARSE_VALUE_NONE The argument takes no value. RTE_ARGPARSE_VALUE_REQUIRED The argument must have a value. RTE_ARGPARSE_VALUE_OPTIONAL The argument has optional value. Definition at line 43 of file rte_argparse.h. enum rte_argparse_value_type enum defining the type of the argument, integer, boolean or just string Enumerator RTE_ARGPARSE_VALUE_TYPE_NONE Argument takes no value, or value type not specified. Should be used when argument is to be handled via callback. RTE_ARGPARSE_VALUE_TYPE_INT The argument's value is int type. RTE_ARGPARSE_VALUE_TYPE_U8 The argument's value is uint8 type. RTE_ARGPARSE_VALUE_TYPE_U16 The argument's value is uint16 type. RTE_ARGPARSE_VALUE_TYPE_U32 The argument's value is uint32 type. RTE_ARGPARSE_VALUE_TYPE_U64 The argument's value is uint64 type. RTE_ARGPARSE_VALUE_TYPE_STR The argument's value is string type. RTE_ARGPARSE_VALUE_TYPE_BOOL The argument's value is boolean flag type. RTE_ARGPARSE_VALUE_TYPE_CORELIST The argument's value is a corelist. Definition at line 53 of file rte_argparse.h. enum rte_argparse_arg_flags Additional flags which may be specified for each argument Enumerator RTE_ARGPARSE_FLAG_SUPPORT_MULTI argument may be specified multiple times on the commandline Definition at line 77 of file rte_argparse.h. Function Documentation __rte_experimental int rte_argparse_parse (const struct rte_argparse * obj, int argc, char ** argv) Warning EXPERIMENTAL: this API may change without prior notice. Parse parameters passed until all are processed, or until a '--' parameter is encountered. Parameters obj Parser object. argc Parameters count. argv Array of parameters points. Returns number of arguments parsed (>= 0) on success. Otherwise negative error code is returned. __rte_experimental void rte_argparse_print_help (FILE * stream, const struct rte_argparse * obj) Warning EXPERIMENTAL: this API may change without prior notice. Output the help text information for the given argparse object. Parameters stream Output file handle, e.g. stdout, stderr, on which to print the help text. obj Parser object. __rte_experimental int rte_argparse_parse_type (const char * str, enum rte_argparse_value_type val_type, void * val) Warning EXPERIMENTAL: this API may change without prior notice. Parse the value from the input string based on the value type. Parameters str Input string. val_type The value type, See also rte_argparse_value_type. Parameters val Saver for the value. Returns 0 on success. Otherwise negative value is returned. Author Generated automatically by Doxygen for DPDK from the source code. Version 25.11.0 Thu Aug 27 2026 rte_argparse.h(3)
NAME | SYNOPSIS | Detailed Description | Typedef Documentation | Enumeration Type Documentation | Function Documentation | Author
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