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# Master makefile definitions for project opnfv vswitchperf
#

# Copyright 2015 OPNFV
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

#
# Contributors:
#   Aihua Li, Huawei Technologies.

# user has the full control to decide where to put the build by
# specifying INSTALL_DIR from the make input

# try to read it in from environment
INSTALL_DIR ?= $(shell echo $$INSTALL_DIR)

# for debugging Makefile
# Make V as a synonum for VERBOSE
ifdef V
VERBOSE = $(V)
endif

VERBOSE ?= 0

ifeq ($(VERBOSE),0)
    AT = @
else
    BASH_X = -x
endif

.DEFAULT_GOAL := all

.PHONY: all clean cleanse clobber
a> 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347
/*
 * String parsing visitor
 *
 * Copyright Red Hat, Inc. 2012
 *
 * Author: Paolo Bonzini <pbonzini@redhat.com>
 *
 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
 * See the COPYING.LIB file in the top-level directory.
 *
 */

#include "qemu-common.h"
#include "qapi/string-input-visitor.h"
#include "qapi/visitor-impl.h"
#include "qapi/qmp/qerror.h"
#include "qemu/option.h"
#include "qemu/queue.h"
#include "qemu/range.h"


struct StringInputVisitor
{
    Visitor visitor;

    bool head;

    GList *ranges;
    GList *cur_range;
    int64_t cur;

    const char *string;
};

static void free_range(void *range, void *dummy)
{
    g_free(range);
}

static void parse_str(StringInputVisitor *siv, Error **errp)
{
    char *str = (char *) siv->string;
    long long start, end;
    Range *cur;
    char *endptr;

    if (siv->ranges) {
        return;
    }

    do {
        errno = 0;
        start = strtoll(str, &endptr, 0);
        if (errno == 0 && endptr > str) {
            if (*endptr == '\0') {
                cur = g_malloc0(sizeof(*cur));
                cur->begin = start;
                cur->end = start + 1;
                siv->ranges = g_list_insert_sorted_merged(siv->ranges, cur,
                                                          range_compare);
                cur = NULL;
                str = NULL;
            } else if (*endptr == '-') {
                str = endptr + 1;
                errno = 0;
                end = strtoll(str, &endptr, 0);
                if (errno == 0 && endptr > str && start <= end &&
                    (start > INT64_MAX - 65536 ||
                     end < start + 65536)) {
                    if (*endptr == '\0') {
                        cur = g_malloc0(sizeof(*cur));
                        cur->begin = start;
                        cur->end = end + 1;
                        siv->ranges =
                            g_list_insert_sorted_merged(siv->ranges,
                                                        cur,
                                                        range_compare);
                        cur = NULL;
                        str = NULL;
                    } else if (*endptr == ',') {
                        str = endptr + 1;
                        cur = g_malloc0(sizeof(*cur));
                        cur->begin = start;
                        cur->end = end + 1;
                        siv->ranges =
                            g_list_insert_sorted_merged(siv->ranges,
                                                        cur,
                                                        range_compare);
                        cur = NULL;
                    } else {
                        goto error;
                    }
                } else {
                    goto error;
                }
            } else if (*endptr == ',') {
                str = endptr + 1;
                cur = g_malloc0(sizeof(*cur));
                cur->begin = start;
                cur->end = start + 1;
                siv->ranges = g_list_insert_sorted_merged(siv->ranges,
                                                          cur,
                                                          range_compare);
                cur = NULL;
            } else {
                goto error;
            }
        } else {
            goto error;
        }
    } while (str);

    return;
error:
    g_list_foreach(siv->ranges, free_range, NULL);
    g_list_free(siv->ranges);
    siv->ranges = NULL;
}

static void
start_list(Visitor *v, const char *name, Error **errp)
{
    StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);

    parse_str(siv, errp);

    siv->cur_range = g_list_first(siv->ranges);
    if (siv->cur_range) {
        Range *r = siv->cur_range->data;
        if (r) {
            siv->cur = r->begin;
        }
    }
}

static GenericList *
next_list(Visitor *v, GenericList **list, Error **errp)
{
    StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
    GenericList **link;
    Range *r;

    if (!siv->ranges || !siv->cur_range) {
        return NULL;
    }

    r = siv->cur_range->data;
    if (!r) {
        return NULL;
    }

    if (siv->cur < r->begin || siv->cur >= r->end) {
        siv->cur_range = g_list_next(siv->cur_range);
        if (!siv->cur_range) {
            return NULL;
        }
        r = siv->cur_range->data;
        if (!r) {
            return NULL;
        }
        siv->cur = r->begin;
    }

    if (siv->head) {
        link = list;
        siv->head = false;
    } else {
        link = &(*list)->next;
    }

    *link = g_malloc0(sizeof **link);
    return *link;
}

static void
end_list(Visitor *v, Error **errp)
{
    StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
    siv->head = true;
}

static void parse_type_int(Visitor *v, int64_t *obj, const char *name,
                           Error **errp)
{
    StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);

    if (!siv->string) {
        error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
                   "integer");
        return;
    }

    parse_str(siv, errp);

    if (!siv->ranges) {
        goto error;
    }

    if (!siv->cur_range) {
        Range *r;

        siv->cur_range = g_list_first(siv->ranges);
        if (!siv->cur_range) {
            goto error;
        }

        r = siv->cur_range->data;
        if (!r) {
            goto error;
        }

        siv->cur = r->begin;
    }

    *obj = siv->cur;
    siv->cur++;
    return;

error:
    error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name,
               "an int64 value or range");
}

static void parse_type_size(Visitor *v, uint64_t *obj, const char *name,
                            Error **errp)
{
    StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
    Error *err = NULL;
    uint64_t val;

    if (siv->string) {
        parse_option_size(name, siv->string, &val, &err);
    } else {
        error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
                   "size");
        return;
    }
    if (err) {
        error_propagate(errp, err);
        return;
    }

    *obj = val;
}

static void parse_type_bool(Visitor *v, bool *obj, const char *name,
                            Error **errp)
{
    StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);

    if (siv->string) {
        if (!strcasecmp(siv->string, "on") ||
            !strcasecmp(siv->string, "yes") ||
            !strcasecmp(siv->string, "true")) {
            *obj = true;
            return;
        }
        if (!strcasecmp(siv->string, "off") ||
            !strcasecmp(siv->string, "no") ||
            !strcasecmp(siv->string, "false")) {
            *obj = false;
            return;
        }
    }

    error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
               "boolean");
}

static void parse_type_str(Visitor *v, char **obj, const char *name,
                           Error **errp)
{
    StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
    if (siv->string) {
        *obj = g_strdup(siv->string);
    } else {
        error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
                   "string");
    }
}

static void parse_type_number(Visitor *v, double *obj, const char *name,
                              Error **errp)
{
    StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
    char *endp = (char *) siv->string;
    double val;

    errno = 0;
    if (siv->string) {
        val = strtod(siv->string, &endp);
    }
    if (!siv->string || errno || endp == siv->string || *endp) {
        error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
                   "number");
        return;
    }

    *obj = val;
}

static void parse_optional(Visitor *v, bool *present, const char *name,
                           Error **errp)
{
    StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);

    if (!siv->string) {
        *present = false;
        return;
    }

    *present = true;
}

Visitor *string_input_get_visitor(StringInputVisitor *v)
{
    return &v->visitor;
}

void string_input_visitor_cleanup(StringInputVisitor *v)
{
    g_list_foreach(v->ranges, free_range, NULL);
    g_list_free(v->ranges);
    g_free(v);
}

StringInputVisitor *string_input_visitor_new(const char *str)
{
    StringInputVisitor *v;

    v = g_malloc0(sizeof(*v));

    v->visitor.type_enum = input_type_enum;
    v->visitor.type_int = parse_type_int;
    v->visitor.type_size = parse_type_size;
    v->visitor.type_bool = parse_type_bool;
    v->visitor.type_str = parse_type_str;
    v->visitor.type_number = parse_type_number;
    v->visitor.start_list = start_list;
    v->visitor.next_list = next_list;
    v->visitor.end_list = end_list;
    v->visitor.optional = parse_optional;

    v->string = str;
    v->head = true;
    return v;
}