Enrico Fraccaroli (Galfurian)
68 lines
2.7 KiB
C
68 lines
2.7 KiB
C
/// @file procfs.h
|
|
/// @brief Proc file system public functions and structures.
|
|
/// @copyright (c) 2014-2022 This file is distributed under the MIT License.
|
|
/// See LICENSE.md for details.
|
|
|
|
#pragma once
|
|
|
|
#include "process/process.h"
|
|
|
|
/// @brief Stores information about a procfs directory entry.
|
|
typedef struct proc_dir_entry_t {
|
|
/// Generic system operations.
|
|
vfs_sys_operations_t *sys_operations;
|
|
/// Files operations.
|
|
vfs_file_operations_t *fs_operations;
|
|
/// Data associated with the dir_entry.
|
|
void *data;
|
|
/// Name of the entry.
|
|
const char *name;
|
|
} proc_dir_entry_t;
|
|
|
|
/// @brief Initialize the procfs filesystem.
|
|
/// @return 0 if fails, 1 if succeed.
|
|
int procfs_module_init();
|
|
|
|
/// @brief Clean up the procfs filesystem.
|
|
/// @return 0 if fails, 1 if succeed.
|
|
int procfs_cleanup_module();
|
|
|
|
/// @brief Finds the direntry inside `/proc` or under the given `parent`.
|
|
/// @param name The name of the entry we are searching.
|
|
/// @param parent The parent (optional).
|
|
/// @return A pointer to the entry, or NULL.
|
|
proc_dir_entry_t *proc_dir_entry_get(const char *name, proc_dir_entry_t *parent);
|
|
|
|
/// @brief Creates a new directory inside the procfs filesystem.
|
|
/// @param name The name of the entry we are creating.
|
|
/// @param parent The parent (optional).
|
|
/// @return A pointer to the entry, or NULL if fails.
|
|
proc_dir_entry_t *proc_mkdir(const char *name, proc_dir_entry_t *parent);
|
|
|
|
/// @brief Removes a directory from the procfs filesystem.
|
|
/// @param name The name of the entry we are removing.
|
|
/// @param parent The parent (optional).
|
|
/// @return 0 if succeed, or -errno in case of error.
|
|
int proc_rmdir(const char *name, proc_dir_entry_t *parent);
|
|
|
|
/// @brief Creates a new entry inside the procfs filesystem.
|
|
/// @param name The name of the entry we are creating.
|
|
/// @param parent The parent (optional).
|
|
/// @return A pointer to the entry, or NULL if fails.
|
|
proc_dir_entry_t *proc_create_entry(const char *name, proc_dir_entry_t *parent);
|
|
|
|
/// @brief Removes an entry from the procfs filesystem.
|
|
/// @param name The name of the entry we are removing.
|
|
/// @param parent The parent (optional).
|
|
/// @return 0 if succeed, or -errno in case of error.
|
|
int proc_destroy_entry(const char *name, proc_dir_entry_t *parent);
|
|
|
|
/// @brief Create the entire procfs entry tree for the give process.
|
|
/// @param entry Pointer to the task_struct of the process.
|
|
/// @return 0 if succeed, or -errno in case of error.
|
|
int proc_create_entry_pid(task_struct *entry);
|
|
|
|
/// @brief Destroy the entire procfs entry tree for the give process.
|
|
/// @param entry Pointer to the task_struct of the process.
|
|
/// @return 0 if succeed, or -errno in case of error.
|
|
int proc_destroy_entry_pid(task_struct *entry); |