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lib/fsm.h

Go to the documentation of this file.

#ifndef H_FSM
#define H_FSM

#include <rpmlib.h>
#include "cpio.h"

#define FSM_VERBOSE     0x8000
#define FSM_INTERNAL    0x4000
#define FSM_SYSCALL     0x2000
#define FSM_DEAD        0x1000
#define _fv(_a)         ((_a) | FSM_VERBOSE)
#define _fi(_a)         ((_a) | FSM_INTERNAL)
#define _fs(_a)         ((_a) | (FSM_INTERNAL | FSM_SYSCALL))
#define _fd(_a)         ((_a) | (FSM_INTERNAL | FSM_DEAD))
typedef enum fileStage_e {
    FSM_UNKNOWN =   0,
    FSM_INIT    =  _fd(1),
    FSM_PRE     =  _fd(2),
    FSM_PROCESS =  _fv(3),
    FSM_POST    =  _fd(4),
    FSM_UNDO    =  5,
    FSM_FINI    =  6,

    FSM_PKGINSTALL      = _fd(7),
    FSM_PKGERASE        = _fd(8),
    FSM_PKGBUILD        = _fd(9),
    FSM_PKGCOMMIT       = _fd(10),
    FSM_PKGUNDO         = _fd(11),

    FSM_CREATE  =  _fd(17),
    FSM_MAP     =  _fd(18),
    FSM_MKDIRS  =  _fi(19),
    FSM_RMDIRS  =  _fi(20),
    FSM_MKLINKS =  _fi(21),
    FSM_NOTIFY  =  _fd(22),
    FSM_DESTROY =  _fd(23),
    FSM_VERIFY  =  _fd(24),
    FSM_COMMIT  =  _fd(25),

    FSM_UNLINK  =  _fs(33),
    FSM_RENAME  =  _fs(34),
    FSM_MKDIR   =  _fs(35),
    FSM_RMDIR   =  _fs(36),
    FSM_CHOWN   =  _fs(37),
    FSM_LCHOWN  =  _fs(38),
    FSM_CHMOD   =  _fs(39),
    FSM_UTIME   =  _fs(40),
    FSM_SYMLINK =  _fs(41),
    FSM_LINK    =  _fs(42),
    FSM_MKFIFO  =  _fs(43),
    FSM_MKNOD   =  _fs(44),
    FSM_LSTAT   =  _fs(45),
    FSM_STAT    =  _fs(46),
    FSM_READLINK=  _fs(47),
    FSM_CHROOT  =  _fs(48),

    FSM_NEXT    =  _fd(65),
    FSM_EAT     =  _fd(66),
    FSM_POS     =  _fd(67),
    FSM_PAD     =  _fd(68),
    FSM_TRAILER =  _fd(69),
    FSM_HREAD   =  _fd(70),
    FSM_HWRITE  =  _fd(71),
    FSM_DREAD   =  _fs(72),
    FSM_DWRITE  =  _fs(73),

    FSM_ROPEN   =  _fs(129),
    FSM_READ    =  _fs(130),
    FSM_RCLOSE  =  _fs(131),
    FSM_WOPEN   =  _fs(132),
    FSM_WRITE   =  _fs(133),
    FSM_WCLOSE  =  _fs(134),
} fileStage;
#undef  _fv
#undef  _fi
#undef  _fs
#undef  _fd

struct hardLink {
/*@owned@*/ struct hardLink * next;
/*@owned@*/ const char ** nsuffix;
/*@owned@*/ int * filex;
    dev_t dev;
    ino_t inode;
    int nlink;
    int linksLeft;
    int linkIndex;
    int createdPath;
};

struct fsmIterator_s {
/*@kept@*/ rpmTransactionSet ts;        
/*@kept@*/ TFI_t fi;                    
    int reverse;                        
    int isave;                          
    int i;                              
};

struct fsm_s {
/*@owned@*/ const char * path;          
/*@owned@*/ const char * opath;         
    FD_t cfd;                           
    FD_t rfd;                           
/*@dependent@*/ char * rdbuf;           
/*@owned@*/ char * rdb;                 
    size_t rdsize;                      
    size_t rdlen;                       
    size_t rdnb;                        
    FD_t wfd;                           
/*@dependent@*/ char * wrbuf;           
/*@owned@*/ char * wrb;                 
    size_t wrsize;                      
    size_t wrlen;                       
    size_t wrnb;                        
/*@only@*/ FSMI_t iter;                 
    int ix;                             
/*@only@*/ struct hardLink * links;     
/*@only@*/ struct hardLink * li;        
/*@kept@*/ unsigned int * archiveSize;  
/*@kept@*/ const char ** failedFile;    
/*@shared@*/ const char * subdir;       
    char subbuf[64];    /* XXX eliminate */
/*@observer@*/ const char * osuffix;    
/*@observer@*/ const char * nsuffix;    
/*@shared@*/ const char * suffix;       
    char sufbuf[64];    /* XXX eliminate */
/*@only@*/ short * dnlx;                
/*@only@*/ char * ldn;                  
    int ldnlen;                         
    int ldnalloc;                       
    int postpone;                       
    int diskchecked;                    
    int exists;                         
    int mkdirsdone;                     
    int astriplen;                      
    int rc;                             
    int commit;                         
    cpioMapFlags mapFlags;              
/*@shared@*/ const char * dirName;      
/*@shared@*/ const char * baseName;     
/*@shared@*/ const char * fmd5sum;      
    unsigned fflags;                    
    fileAction action;                  
    fileStage goal;                     
    fileStage stage;                    
    struct stat sb;                     
    struct stat osb;                    
};

#ifdef __cplusplus
extern "C" {
#endif

/*@observer@*/ const char *const fileStageString(fileStage a);

/*@observer@*/ const char *const fileActionString(fileAction a);

/*@only@*/ /*@null@*/ FSM_t newFSM(void);

/*@null@*/ FSM_t freeFSM(/*@only@*/ /*@null@*/ FSM_t fsm);

int fsmSetup(FSM_t fsm, fileStage goal,
        /*@kept@*/ const rpmTransactionSet ts,
        /*@kept@*/ const TFI_t fi,
        FD_t cfd,
        /*@out@*/ unsigned int * archiveSize,
        /*@out@*/ const char ** failedFile)
                /*@modifies fsm, *archiveSize, *failedFile  @*/;

int fsmTeardown(FSM_t fsm)
                /*@modifies fsm @*/;

/*@kept@*/ rpmTransactionSet fsmGetTs(const FSM_t fsm)  /*@*/;

/*@kept@*/ TFI_t fsmGetFi(const FSM_t fsm)      /*@*/;

int fsmMapPath(FSM_t fsm)
                /*@modifies fsm @*/;

int fsmMapAttrs(FSM_t fsm)
                /*@modifies fsm @*/;

int fsmStage(FSM_t fsm, fileStage stage)
                /*@modifies fsm @*/;

#ifdef __cplusplus
}
#endif

#endif  /* H_FSM */

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