You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
136 lines
4.2 KiB
136 lines
4.2 KiB
/*
|
|
* Copyright (c) 2017 - 2018, The Linux Foundation. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided
|
|
* with the distribution.
|
|
* * Neither the name of The Linux Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
|
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
|
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
|
|
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#define LOG_TAG "ConfigParser"
|
|
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <utils/Log.h>
|
|
#include <sys/mman.h>
|
|
#include "PlatformConfig.h"
|
|
#include "ConfigParser.h"
|
|
|
|
namespace Platform {
|
|
|
|
#define BUF_SIZE 1024
|
|
|
|
void ConfigParser::processProperty(const XML_Char **attr, ConfigMap &configMap) {
|
|
if (strcmp(attr[0], "name") != 0) {
|
|
VIDC_PLAT_LOGH("%s: Element 'name' not found!", __func__);
|
|
return;
|
|
}
|
|
|
|
std::string propName(attr[1]);
|
|
|
|
if (strcmp(attr[2], "value") != 0) {
|
|
VIDC_PLAT_LOGH("%s: Element 'value' not found for %s!", __func__, propName.c_str());
|
|
return;
|
|
}
|
|
|
|
std::string propValue(attr[3]);
|
|
|
|
configMap[propName] = propValue;
|
|
|
|
return;
|
|
}
|
|
|
|
void ConfigParser::startTag(void *userdata, const XML_Char *tagName,
|
|
const XML_Char **attr) {
|
|
if (strcmp(tagName, "property") == 0) {
|
|
processProperty(attr, *static_cast<ConfigMap *>(userdata));
|
|
}
|
|
return;
|
|
}
|
|
|
|
void ConfigParser::endTag(void *userdata __unused, const XML_Char *tagName __unused) {
|
|
return;
|
|
}
|
|
|
|
int ConfigParser::initAndParse(std::string configFile, ConfigMap &configMap) {
|
|
int err = 1;
|
|
XML_Parser parser;
|
|
FILE *file;
|
|
file = fopen(configFile.c_str(), "r");
|
|
if (!file) {
|
|
VIDC_PLAT_LOGH("%s: Error: %d (%s). Using defaults!",
|
|
__func__, errno, strerror(errno));
|
|
return err;
|
|
}
|
|
|
|
// Create Parser
|
|
parser = XML_ParserCreate(NULL);
|
|
if (!parser) {
|
|
VIDC_PLAT_LOGH("%s: Failed to create XML parser!", __func__);
|
|
err = -ENODEV;
|
|
goto fileError;
|
|
}
|
|
|
|
// Set XML element handlers
|
|
XML_SetUserData(parser, &configMap);
|
|
XML_SetElementHandler(parser, startTag, endTag);
|
|
void *buf;
|
|
int bytesRead;
|
|
|
|
// Parse
|
|
while (1) {
|
|
buf = XML_GetBuffer(parser, BUF_SIZE);
|
|
if (buf == NULL) {
|
|
VIDC_PLAT_LOGH("%s: XML_GetBuffer failed", __func__);
|
|
err = -ENOMEM;
|
|
goto parserError;
|
|
}
|
|
|
|
bytesRead = fread(buf, 1, BUF_SIZE, file);
|
|
if (bytesRead < 0) {
|
|
VIDC_PLAT_LOGH("%s: fread failed, bytes read = %d", __func__, bytesRead);
|
|
err = bytesRead;
|
|
goto parserError;
|
|
}
|
|
|
|
if (XML_ParseBuffer(parser, bytesRead,
|
|
bytesRead == 0) == XML_STATUS_ERROR) {
|
|
VIDC_PLAT_LOGH("%s: XML_ParseBuffer failed, for %s",
|
|
__func__, configFile.c_str());
|
|
err = -EINVAL;
|
|
goto parserError;
|
|
}
|
|
if (bytesRead == 0)
|
|
break;
|
|
}
|
|
|
|
// Free parser and close file in error/ at exit
|
|
parserError:
|
|
XML_ParserFree(parser);
|
|
fileError:
|
|
fclose(file);
|
|
return err;
|
|
}
|
|
|
|
}
|