X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Finclude%2Fqemu%2Foption.h;fp=qemu%2Finclude%2Fqemu%2Foption.h;h=57e51c96283efe32712507150a4c1748338b23b2;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/include/qemu/option.h b/qemu/include/qemu/option.h new file mode 100644 index 000000000..57e51c962 --- /dev/null +++ b/qemu/include/qemu/option.h @@ -0,0 +1,141 @@ +/* + * Commandline option parsing functions + * + * Copyright (c) 2003-2008 Fabrice Bellard + * Copyright (c) 2009 Kevin Wolf + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef QEMU_OPTIONS_H +#define QEMU_OPTIONS_H + +#include +#include "qemu/queue.h" +#include "qapi/error.h" +#include "qapi/qmp/qdict.h" + +const char *get_opt_name(char *buf, int buf_size, const char *p, char delim); +const char *get_opt_value(char *buf, int buf_size, const char *p); +int get_next_param_value(char *buf, int buf_size, + const char *tag, const char **pstr); +int get_param_value(char *buf, int buf_size, + const char *tag, const char *str); + + +void parse_option_size(const char *name, const char *value, + uint64_t *ret, Error **errp); +bool has_help_option(const char *param); +bool is_valid_option_list(const char *param); + +typedef struct QemuOpt QemuOpt; +typedef struct QemuOpts QemuOpts; +typedef struct QemuOptsList QemuOptsList; + +enum QemuOptType { + QEMU_OPT_STRING = 0, /* no parsing (use string as-is) */ + QEMU_OPT_BOOL, /* on/off */ + QEMU_OPT_NUMBER, /* simple number */ + QEMU_OPT_SIZE, /* size, accepts (K)ilo, (M)ega, (G)iga, (T)era postfix */ +}; + +typedef struct QemuOptDesc { + const char *name; + enum QemuOptType type; + const char *help; + const char *def_value_str; +} QemuOptDesc; + +struct QemuOptsList { + const char *name; + const char *implied_opt_name; + bool merge_lists; /* Merge multiple uses of option into a single list? */ + QTAILQ_HEAD(, QemuOpts) head; + QemuOptDesc desc[]; +}; + +const char *qemu_opt_get(QemuOpts *opts, const char *name); +char *qemu_opt_get_del(QemuOpts *opts, const char *name); +/** + * qemu_opt_has_help_opt: + * @opts: options to search for a help request + * + * Check whether the options specified by @opts include one of the + * standard strings which indicate that the user is asking for a + * list of the valid values for a command line option (as defined + * by is_help_option()). + * + * Returns: true if @opts includes 'help' or equivalent. + */ +bool qemu_opt_has_help_opt(QemuOpts *opts); +QemuOpt *qemu_opt_find(QemuOpts *opts, const char *name); +bool qemu_opt_get_bool(QemuOpts *opts, const char *name, bool defval); +uint64_t qemu_opt_get_number(QemuOpts *opts, const char *name, uint64_t defval); +uint64_t qemu_opt_get_size(QemuOpts *opts, const char *name, uint64_t defval); +bool qemu_opt_get_bool_del(QemuOpts *opts, const char *name, bool defval); +uint64_t qemu_opt_get_number_del(QemuOpts *opts, const char *name, + uint64_t defval); +uint64_t qemu_opt_get_size_del(QemuOpts *opts, const char *name, + uint64_t defval); +int qemu_opt_unset(QemuOpts *opts, const char *name); +void qemu_opt_set(QemuOpts *opts, const char *name, const char *value, + Error **errp); +void qemu_opt_set_bool(QemuOpts *opts, const char *name, bool val, + Error **errp); +void qemu_opt_set_number(QemuOpts *opts, const char *name, int64_t val, + Error **errp); +typedef int (*qemu_opt_loopfunc)(void *opaque, + const char *name, const char *value, + Error **errp); +int qemu_opt_foreach(QemuOpts *opts, qemu_opt_loopfunc func, void *opaque, + Error **errp); + +QemuOpts *qemu_opts_find(QemuOptsList *list, const char *id); +QemuOpts *qemu_opts_create(QemuOptsList *list, const char *id, + int fail_if_exists, Error **errp); +void qemu_opts_reset(QemuOptsList *list); +void qemu_opts_loc_restore(QemuOpts *opts); +void qemu_opts_set(QemuOptsList *list, const char *id, + const char *name, const char *value, Error **errp); +const char *qemu_opts_id(QemuOpts *opts); +void qemu_opts_set_id(QemuOpts *opts, char *id); +void qemu_opts_del(QemuOpts *opts); +void qemu_opts_validate(QemuOpts *opts, const QemuOptDesc *desc, Error **errp); +void qemu_opts_do_parse(QemuOpts *opts, const char *params, + const char *firstname, Error **errp); +QemuOpts *qemu_opts_parse_noisily(QemuOptsList *list, const char *params, + bool permit_abbrev); +QemuOpts *qemu_opts_parse(QemuOptsList *list, const char *params, + bool permit_abbrev, Error **errp); +void qemu_opts_set_defaults(QemuOptsList *list, const char *params, + int permit_abbrev); +QemuOpts *qemu_opts_from_qdict(QemuOptsList *list, const QDict *qdict, + Error **errp); +QDict *qemu_opts_to_qdict(QemuOpts *opts, QDict *qdict); +void qemu_opts_absorb_qdict(QemuOpts *opts, QDict *qdict, Error **errp); + +typedef int (*qemu_opts_loopfunc)(void *opaque, QemuOpts *opts, Error **errp); +int qemu_opts_foreach(QemuOptsList *list, qemu_opts_loopfunc func, + void *opaque, Error **errp); +void qemu_opts_print(QemuOpts *opts, const char *sep); +void qemu_opts_print_help(QemuOptsList *list); +void qemu_opts_free(QemuOptsList *list); +QemuOptsList *qemu_opts_append(QemuOptsList *dst, QemuOptsList *list); + +#endif