From d3f243676addaef6c8d818934565292c698f91cc Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Mon, 18 May 2009 16:42:09 +0200 Subject: Create qemu-option.h This patch creates a new header file and the corresponding implementation file for parsing of parameter strings for options (like used in -drive). Part of this is code moved from vl.c (so qemu-img can use it later). The idea is to have a data structure describing all accepted parameters. When parsing a parameter string, the structure is copied and filled with the parameter values. Signed-off-by: Kevin Wolf Signed-off-by: Anthony Liguori --- qemu-option.h | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 qemu-option.h (limited to 'qemu-option.h') diff --git a/qemu-option.h b/qemu-option.h new file mode 100644 index 0000000000..ac24694e8b --- /dev/null +++ b/qemu-option.h @@ -0,0 +1,67 @@ +/* + * 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 + +enum QEMUOptionParType { + OPT_FLAG, + OPT_NUMBER, + OPT_SIZE, + OPT_STRING, +}; + +typedef struct QEMUOptionParameter { + const char *name; + enum QEMUOptionParType type; + union { + uint64_t n; + char* s; + } value; +} QEMUOptionParameter; + + +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); + + +/* + * The following functions take a parameter list as input. This is a pointer to + * the first element of a QEMUOptionParameter array which is terminated by an + * entry with entry->name == NULL. + */ + +QEMUOptionParameter *get_option_parameter(QEMUOptionParameter *list, + const char *name); +int set_option_parameter(QEMUOptionParameter *list, const char *name, + const char *value); +int set_option_parameter_int(QEMUOptionParameter *list, const char *name, + uint64_t value); +QEMUOptionParameter *parse_option_parameters(const char *param, + QEMUOptionParameter *list, QEMUOptionParameter *dest); +void free_option_parameters(QEMUOptionParameter *list); +void print_option_parameters(QEMUOptionParameter *list); + +#endif -- cgit v1.2.1