cgroup.h

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// SPDX-License-Identifier: MIT
#ifndef __CGROUP_H__
#define __CGROUP_H__
 
#ifdef ENABLE_CGROUP
 
#include <fcntl.h>
#include <stdbool.h>
#include <stddef.h>
 
#ifndef CRINIT_CGROUP_PATH
#define CRINIT_CGROUP_PATH "/sys/fs/cgroup"
#endif
 
typedef struct {
    char *filename;  
    char *option;    
} crinitCgroupParam_t;
 
typedef struct {
    crinitCgroupParam_t *param;  
    size_t paramCount;           
} crinitCgroupConfiguration_t;
 
struct crinitCgroup;
typedef struct crinitCgroup crinitCgroup_t;
 
struct crinitCgroup {
    char *name;                           
    int groupFd;                          
    crinitCgroup_t *parent;               
    crinitCgroupConfiguration_t *config;  
};
 
int crinitFreeCgroupParam(crinitCgroupParam_t *param);
 
int crinitFreeCgroupConfiguration(crinitCgroupConfiguration_t *config);
 
int crinitFreeCgroup(crinitCgroup_t *cgroup);
 
int crinitCopyCgroupParam(crinitCgroupParam_t *orig, crinitCgroupParam_t *out);
 
int crinitCgroupConvertSingleParamToObject(const char *in, crinitCgroupParam_t *out);
 
int crinitCopyCgroupConfiguration(crinitCgroupConfiguration_t *orig, crinitCgroupConfiguration_t *out);
 
int crinitCopyCgroup(crinitCgroup_t *orig, crinitCgroup_t *out);
 
int crinitConvertConfigArrayToCGroupConfiguration(char **confArray, const int confArraySize,
                                                  crinitCgroupConfiguration_t *result);
 
crinitCgroup_t *crinitFindCgroupByName(crinitCgroup_t **cgroups, size_t cgroupsCount, const char *name);
 
int crinitCGroupConfigure(crinitCgroup_t *cgroup);
 
int crinitCGroupAssignPID(crinitCgroup_t *cgroup, pid_t pid);
 
int crinitCreateGlobalCGroups(void);
 
int crinitCgroupGlobalParamSplitNameAndParam(const char *val, char **name, char **param);
 
int crinitCgroupNameIsGlobalCgroup(const char *name, bool *isGlobal);
 
#endif
 
#endif