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/**
* Copyright (c) 2018 chai
*/
#ifndef SMOUNT_H
#define SMOUNT_H
// path type
enum
{
PATH_DIR = 1, // directory
PATH_REG = 2 // regular file
};
// sm status
enum
{
SMT_SUCCESS = 0,
SMT_INVALIDMOUNT = 1, // invalid mount directory.
SMT_NOSUCHDIR = 2, // directory or file doesn't exsist.
SMT_UNABLEOPEN = 3, //
SMT_CANTWRITE = 4,
};
typedef struct smtPath
{
int type;
char* path;
struct smtPath* next;
}smtPath;
/**
* A shared context structrue.
*/
typedef struct smtShared
{
smtPath* mount; // the root directory
}smtShared;
smtShared* smtnewshared();
void smtcloseshared(smtShared* S);
/**
* Get error string with given error code.
*/
const char *smterrstr(int err);
/**
* Mount a sub file system.
*/
int smtmount(smtShared* S, const char *path);
/**
* Free mount
*/
void smtunmount(smtShared* S);
int smtexists(smtShared* S, const char *path);
/**
* Get size of a file.
*/
int smtsize(smtShared* S, const char *path);
/**
* Can only read files under root directory.
*/
void *smtread(smtShared* S, const char *path, unsigned int *size);
int smtisdir(smtShared* S, const char *path);
int smtisreg(smtShared* S, const char *path);
/**
* List all folders and files inside current mount directory.
*/
smtPath *smtlist(smtShared*S, const char *path);
void smtfreelist(smtPath* S);
int smtwrite(smtShared* S, const char *path, const void *data, int size);
void smtdelete(smtShared* S, const char *path);
int smtmkdir(smtShared* S, const char *path);
char* smtfullpath(smtShared* S, const char* path);
#endif
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