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Add a way for the system to set values

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This commit is contained in:
Baptiste Wicht 2014-03-01 22:01:25 +01:00
parent 5be3c5fda7
commit 0c236f1a36
1 changed files with 64 additions and 4 deletions
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68
kernel/src/fs/sysfs.cpp
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@ -20,16 +20,61 @@ namespace {
struct sys_value { struct sys_value {
std::string name; std::string name;
std::string value; std::string value;
sys_value(){}
sys_value(std::string name, std::string value) : name(name), value(value){
//Nothing else to init
}
}; };
struct sys_folder { struct sys_folder {
std::string name; std::string name;
std::vector<sys_folder> folders; std::vector<sys_folder> folders;
std::vector<sys_value> values; std::vector<sys_value> values;
sys_folder(){}
sys_folder(std::string name) : name(name) {
//Nothing else to init
}
}; };
std::vector<sys_folder> root_folders; std::vector<sys_folder> root_folders;
sys_folder& find_root_folder(const std::string& mount_point){
for(auto& sys_folder : root_folders){
if(sys_folder.name == mount_point){
return sys_folder;
}
}
root_folders.emplace_back(mount_point);
return root_folders.back();
}
sys_folder& find_folder(sys_folder& root, const std::vector<std::string>& path, size_t i = 0){
auto& name = path[i];
for(auto& folder : root.folders){
if(folder.name == name){
if(i == path.size() - 1){
return folder;
} else {
return find_folder(folder, path, i + 1);
}
}
}
root.folders.emplace_back(name);
if(i == path.size() - 1){
return root.folders.back();
} else {
return find_folder(root.folders.back(), path, i + 1);
}
}
} //end of anonymous namespace } //end of anonymous namespace
sysfs::sysfs_file_system::sysfs_file_system(std::string mp) : mount_point(mp) { sysfs::sysfs_file_system::sysfs_file_system(std::string mp) : mount_point(mp) {
@ -55,15 +100,15 @@ size_t sysfs::sysfs_file_system::ls(const std::vector<std::string>& file_path, s
return 0; return 0;
} }
size_t sysfs::sysfs_file_system::touch(const std::vector<std::string>& file_path){ size_t sysfs::sysfs_file_system::touch(const std::vector<std::string>& ){
return std::ERROR_PERMISSION_DENIED; return std::ERROR_PERMISSION_DENIED;
} }
size_t sysfs::sysfs_file_system::mkdir(const std::vector<std::string>& file_path){ size_t sysfs::sysfs_file_system::mkdir(const std::vector<std::string>& ){
return std::ERROR_PERMISSION_DENIED; return std::ERROR_PERMISSION_DENIED;
} }
size_t sysfs::sysfs_file_system::rm(const std::vector<std::string>& file_path){ size_t sysfs::sysfs_file_system::rm(const std::vector<std::string>& ){
return std::ERROR_PERMISSION_DENIED; return std::ERROR_PERMISSION_DENIED;
} }
@ -75,7 +120,22 @@ size_t sysfs::sysfs_file_system::statfs(statfs_info& file){
} }
void set_value(const std::string& mount_point, const std::string& path, const std::string& value){ void set_value(const std::string& mount_point, const std::string& path, const std::string& value){
//TODO auto& root_folder = find_root_folder(mount_point);
auto file_path = std::split(path, '/');
auto last = file_path.back();
file_path.pop_back();
auto& folder = find_folder(root_folder, file_path);
for(auto& v : folder.values){
if(v.name == last){
v.value = value;
return;
}
}
folder.values.emplace_back(last, value);
} }
void delete_value(const std::string& mount_point, const std::string& path){ void delete_value(const std::string& mount_point, const std::string& path){