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Diffstat (limited to '')
| -rw-r--r-- | infomanager.cpp | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/infomanager.cpp b/infomanager.cpp new file mode 100644 index 000000000..080fe1d28 --- /dev/null +++ b/infomanager.cpp @@ -0,0 +1,206 @@ +/* + Copyright 2012 bigbiff/Dees_Troy TeamWin + This file is part of TWRP/TeamWin Recovery Project. + + TWRP is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + TWRP is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with TWRP. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <linux/input.h> +#include <pthread.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <fcntl.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <sys/types.h> +#include <sys/ioctl.h> +#include <unistd.h> +#include <stdlib.h> + +#include <string> +#include <utility> +#include <map> +#include <fstream> +#include <sstream> + +#include "infomanager.hpp" +#include "twcommon.h" +#include "partitions.hpp" + +using namespace std; + +InfoManager::InfoManager(const string filename) { + File = filename; +} + +InfoManager::~InfoManager(void) { + mValues.clear(); +} + +int InfoManager::LoadValues(void) { + string str; + + // Read in the file, if possible + FILE* in = fopen(File.c_str(), "rb"); + if (!in) { + LOGINFO("InfoManager file '%s' not found.\n", File.c_str()); + return -1; + } else { + LOGINFO("InfoManager loading from '%s'.\n", File.c_str()); + } + + while (!feof(in)) { + string Name; + string Value; + unsigned short length; + char array[512]; + + if (fread(&length, 1, sizeof(unsigned short), in) != sizeof(unsigned short)) goto error; + if (length >= 512) goto error; + if (fread(array, 1, length, in) != length) goto error; + Name = array; + + if (fread(&length, 1, sizeof(unsigned short), in) != sizeof(unsigned short)) goto error; + if (length >= 512) goto error; + if (fread(array, 1, length, in) != length) goto error; + Value = array; + + map<string, string>::iterator pos; + + pos = mValues.find(Name); + if (pos != mValues.end()) { + pos->second = Value; + } else { + mValues.insert(make_pair(Name, Value)); + } + } +error: + fclose(in); + return 0; +} + +int InfoManager::SaveValues(void) { + if (File.empty()) + return -1; + + PartitionManager.Mount_By_Path(File, true); +LOGINFO("InfoManager saving '%s'\n", File.c_str()); + FILE* out = fopen(File.c_str(), "wb"); + if (!out) + return -1; + + map<string, string>::iterator iter; + for (iter = mValues.begin(); iter != mValues.end(); ++iter) { + unsigned short length = (unsigned short) iter->first.length() + 1; + fwrite(&length, 1, sizeof(unsigned short), out); + fwrite(iter->first.c_str(), 1, length, out); + length = (unsigned short) iter->second.length() + 1; + fwrite(&length, 1, sizeof(unsigned short), out); + fwrite(iter->second.c_str(), 1, length, out); + } + fclose(out); + return 0; +} + +int InfoManager::GetValue(const string varName, string& value) { + string localStr = varName; + + map<string, string>::iterator pos; + pos = mValues.find(localStr); + if (pos == mValues.end()) + return -1; + + value = pos->second; + return 0; +} + +int InfoManager::GetValue(const string varName, int& value) { + string data; + + if (GetValue(varName,data) != 0) + return -1; + + value = atoi(data.c_str()); + return 0; +} + +int InfoManager::GetValue(const string varName, float& value) { + string data; + + if (GetValue(varName,data) != 0) + return -1; + + value = atof(data.c_str()); + return 0; +} + +unsigned long long InfoManager::GetValue(const string varName, unsigned long long& value) { + string data; + + if (GetValue(varName,data) != 0) + return -1; + + value = strtoull(data.c_str(), NULL, 10); + return 0; +} + +// This function will return an empty string if the value doesn't exist +string InfoManager::GetStrValue(const string varName) { + string retVal; + + GetValue(varName, retVal); + return retVal; +} + +// This function will return 0 if the value doesn't exist +int InfoManager::GetIntValue(const string varName) { + string retVal; + GetValue(varName, retVal); + return atoi(retVal.c_str()); +} + +int InfoManager::SetValue(const string varName, string value) { + // Don't allow empty values or numerical starting values + if (varName.empty() || (varName[0] >= '0' && varName[0] <= '9')) + return -1; + + map<string, string>::iterator pos; + pos = mValues.find(varName); + if (pos == mValues.end()) + mValues.insert(make_pair(varName, value)); + else + pos->second = value; + + return 0; +} + +int InfoManager::SetValue(const string varName, int value) { + ostringstream valStr; + valStr << value; + return SetValue(varName, valStr.str()); +} + +int InfoManager::SetValue(const string varName, float value) { + ostringstream valStr; + valStr << value; + return SetValue(varName, valStr.str()); +} + +int InfoManager::SetValue(const string varName, unsigned long long value) { + ostringstream valStr; + valStr << value; + return SetValue(varName, valStr.str()); +} |