File System Directory Hierarchy

The Tizen platform uses the underlying Linux file system.

The following rules apply to the file system access:

• Native applications can access the file system using Native APIs and opensource libraries such as eglibc, glib, and so on.
• Applications can use relative paths.
• The file system is case-sensitive.
• The I/O resources and limitations depend on the underlying Linux file system or system configuration.
  • The maximum number of file or directory handles: 1024
  • The maximum length of a file or directory name: 255
  • The maximum length of a full path name: 4096

The following table shows the application directory hierarchy:

Table: Application package directory hierarchy

Name	Description	Permission
bin	Executable binary path	Owner: Read Others: Access denied
lib	Library path	Owner: Read Others: Access denied
data	Used to store private data of an application. To get the application data directory path, call the app_get_data_path() function of the App Common module.	Owner: Read and Write Others: Access denied
res	Used to read resource files that are delivered with the application package. To get the application resource directory path, call the app_get_resource_path() function of the App common module.	Owner: Read Others: Access denied
shared	Parent directory of the data, res, and trusted sub-directories. Files in this directory cannot be delivered with the application package.	Owner: Read Others: Read
shared/data	Used to share data with other applications. To get this directory path of your own application, call the app_get_shared_data_path() function of the App common module. Files stored in the shared/data directory can be read by other applications. Do not store application's private data in the shared/data directory.	Owner: Read and Write Others: Read
shared/res	Used to share resources with other applications. The resource files are delivered with the application package. To get this directory path of your own application, call the app_get_shared_resource_path() function of the App common module. Files stored in the shared/res directory can be read by other applications. Do not pack application's private resource files in the shared/res directory.	Owner: Read Others: Read
shared/trusted	Used to share data with family of trusted applications. The family applications signed with the same certificate can access data in the shared/trusted directory. To get this directory path of your own application, call the app_get_shared_trusted_path() function of the App common module.	Owner: Read and Write Family: Read and Write Others: Access denied

Every application can access a storage area where media files are stored. This is the media directory. In native applications, to obtain the media directory path, call the storage_get_directory() function of Storage module. The following table lists the sub-directories of the media directory.

Table: Media directory hierarchy

Name	Description	Permission
Images	Used for Image data.	Read and Write
Sounds	Used for Sound data.
Vides	Used for Video data.
Cameras	Used for Camera pictures.
Downloads	Used for Downloaded data.
Music	Used for Music data.
Documents	Used for Documents.
System Ringtones	Used for System default ringtones.	Read
Others	Used for other types.	Read and Write

Every application can also access the external storage, such as MMC. This is the external storage directory. In native applications, to obtain the external storage directory path, call the storage_get_directory() function of the Storage module. The following table lists the sub-directories of the external storage directory.

Table: External storage directory hierarchy

Name	Description	Permission
Images	Used for Image data.	Read and Write
Sounds	Used for Sound data.
Vides	Used for Video data.
Cameras	Used for Camera pictures.
Downloads	Used for Downloaded data.
Music	Used for Music data.
Documents	Used for Documents.
Others	Used for other types.