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lib/fsm.h

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00001 #ifndef H_FSM
00002 #define H_FSM
00003 
00009 #include "cpio.h"
00010 
00011 /*@-exportlocal@*/
00012 /*@unchecked@*/
00013 extern int _fsm_debug;
00014 /*@=exportlocal@*/
00015 
00018 #define FSM_VERBOSE     0x8000
00019 #define FSM_INTERNAL    0x4000
00020 #define FSM_SYSCALL     0x2000
00021 #define FSM_DEAD        0x1000
00022 
00023 #define _fv(_a)         ((_a) | FSM_VERBOSE)
00024 #define _fi(_a)         ((_a) | FSM_INTERNAL)
00025 #define _fs(_a)         ((_a) | (FSM_INTERNAL | FSM_SYSCALL))
00026 #define _fd(_a)         ((_a) | (FSM_INTERNAL | FSM_DEAD))
00027 
00028 typedef enum fileStage_e {
00029     FSM_UNKNOWN =   0,
00030     FSM_INIT    =  _fd(1),
00031     FSM_PRE     =  _fd(2),
00032     FSM_PROCESS =  _fv(3),
00033     FSM_POST    =  _fd(4),
00034     FSM_UNDO    =  5,
00035     FSM_FINI    =  6,
00036 
00037     FSM_PKGINSTALL      = _fd(7),
00038     FSM_PKGERASE        = _fd(8),
00039     FSM_PKGBUILD        = _fd(9),
00040     FSM_PKGCOMMIT       = _fd(10),
00041     FSM_PKGUNDO         = _fd(11),
00042 
00043     FSM_CREATE  =  _fd(17),
00044     FSM_MAP     =  _fd(18),
00045     FSM_MKDIRS  =  _fi(19),
00046     FSM_RMDIRS  =  _fi(20),
00047     FSM_MKLINKS =  _fi(21),
00048     FSM_NOTIFY  =  _fd(22),
00049     FSM_DESTROY =  _fd(23),
00050     FSM_VERIFY  =  _fd(24),
00051     FSM_COMMIT  =  _fd(25),
00052 
00053     FSM_UNLINK  =  _fs(33),
00054     FSM_RENAME  =  _fs(34),
00055     FSM_MKDIR   =  _fs(35),
00056     FSM_RMDIR   =  _fs(36),
00057     FSM_CHOWN   =  _fs(37),
00058     FSM_LCHOWN  =  _fs(38),
00059     FSM_CHMOD   =  _fs(39),
00060     FSM_UTIME   =  _fs(40),
00061     FSM_SYMLINK =  _fs(41),
00062     FSM_LINK    =  _fs(42),
00063     FSM_MKFIFO  =  _fs(43),
00064     FSM_MKNOD   =  _fs(44),
00065     FSM_LSTAT   =  _fs(45),
00066     FSM_STAT    =  _fs(46),
00067     FSM_READLINK=  _fs(47),
00068     FSM_CHROOT  =  _fs(48),
00069 
00070     FSM_NEXT    =  _fd(65),
00071     FSM_EAT     =  _fd(66),
00072     FSM_POS     =  _fd(67),
00073     FSM_PAD     =  _fd(68),
00074     FSM_TRAILER =  _fd(69),
00075     FSM_HREAD   =  _fd(70),
00076     FSM_HWRITE  =  _fd(71),
00077     FSM_DREAD   =  _fs(72),
00078     FSM_DWRITE  =  _fs(73),
00079 
00080     FSM_ROPEN   =  _fs(129),
00081     FSM_READ    =  _fs(130),
00082     FSM_RCLOSE  =  _fs(131),
00083     FSM_WOPEN   =  _fs(132),
00084     FSM_WRITE   =  _fs(133),
00085     FSM_WCLOSE  =  _fs(134)
00086 } fileStage;
00087 #undef  _fv
00088 #undef  _fi
00089 #undef  _fs
00090 #undef  _fd
00091 
00095 struct hardLink_s {
00096 /*@owned@*/ struct hardLink_s * next;
00097 /*@owned@*/ const char ** nsuffix;
00098 /*@owned@*/ int * filex;
00099     struct stat sb;
00100     int nlink;
00101     int linksLeft;
00102     int linkIndex;
00103     int createdPath;
00104 };
00105 
00109 struct fsmIterator_s {
00110     rpmts ts;                   
00111     rpmfi fi;                   
00112     int reverse;                
00113     int isave;                  
00114     int i;                      
00115 };
00116 
00120 struct fsm_s {
00121 /*@owned@*/
00122     const char * path;          
00123 /*@owned@*/
00124     const char * opath;         
00125     FD_t cfd;                   
00126     FD_t rfd;                   
00127 /*@dependent@*/
00128     char * rdbuf;               
00129 /*@owned@*/
00130     char * rdb;                 
00131     size_t rdsize;              
00132     size_t rdlen;               
00133     size_t rdnb;                
00134     FD_t wfd;                   
00135 /*@dependent@*/
00136     char * wrbuf;               
00137 /*@owned@*/
00138     char * wrb;                 
00139     size_t wrsize;              
00140     size_t wrlen;               
00141     size_t wrnb;                
00142 /*@only@*/ /*@null@*/
00143     FSMI_t iter;                
00144     int ix;                     
00145 /*@only@*/
00146     struct hardLink_s * links;  
00147 /*@only@*/
00148     struct hardLink_s * li;     
00149 /*@kept@*/ /*@null@*/
00150     unsigned int * archiveSize; 
00151 /*@kept@*/ /*@null@*/
00152     const char ** failedFile;   
00153 /*@shared@*/
00154     const char * subdir;        
00155 /*@unused@*/
00156     char subbuf[64];    /* XXX eliminate */
00157 /*@observer@*/
00158     const char * osuffix;       
00159 /*@observer@*/
00160     const char * nsuffix;       
00161 /*@shared@*/
00162     const char * suffix;        
00163     char sufbuf[64];    /* XXX eliminate */
00164 /*@only@*/ /*@null@*/
00165     short * dnlx;               
00166 /*@only@*/ /*@null@*/
00167     char * ldn;                 
00168     int ldnlen;                 
00169     int ldnalloc;               
00170     int postpone;               
00171     int diskchecked;            
00172     int exists;                 
00173     int mkdirsdone;             
00174     int astriplen;              
00175     int rc;                     
00176     int commit;                 
00177     cpioMapFlags mapFlags;      
00178 /*@shared@*/
00179     const char * dirName;       
00180 /*@shared@*/
00181     const char * baseName;      
00182 /*@shared@*/
00183     const char * fmd5sum;       
00184 /*@shared@*/
00185     const char * md5sum;        
00187     unsigned fflags;            
00188     fileAction action;          
00189     fileStage goal;             
00190     fileStage stage;            
00191     struct stat sb;             
00192     struct stat osb;            
00193 };
00194 
00195 #ifdef __cplusplus
00196 extern "C" {
00197 #endif
00198 
00199 /*@-exportlocal@*/
00205 /*@observer@*/ const char *const fileStageString(fileStage a)   /*@*/;
00206 
00212 /*@observer@*/ const char *const fileActionString(fileAction a) /*@*/;
00213 /*@=exportlocal@*/
00214 
00219 /*@only@*/ FSM_t newFSM(void)
00220         /*@*/;
00221 
00227 /*@null@*/ FSM_t freeFSM(/*@only@*/ /*@null@*/ FSM_t fsm)
00228         /*@globals fileSystem @*/
00229         /*@modifies fsm, fileSystem @*/;
00230 
00242 int fsmSetup(FSM_t fsm, fileStage goal,
00243                 const rpmts ts,
00244                 const rpmfi fi,
00245                 FD_t cfd,
00246                 /*@out@*/ unsigned int * archiveSize,
00247                 /*@out@*/ const char ** failedFile)
00248         /*@globals fileSystem, internalState @*/
00249         /*@modifies fsm, ts, fi, *archiveSize, *failedFile,
00250                 fileSystem, internalState @*/;
00251 
00257 int fsmTeardown(FSM_t fsm)
00258         /*@globals fileSystem, internalState @*/
00259         /*@modifies fsm, fileSystem, internalState @*/;
00260 
00261 /*@-exportlocal@*/
00267 rpmts fsmGetTs(const FSM_t fsm)
00268         /*@*/;
00269 
00275 rpmfi fsmGetFi(/*@partial@*/ const FSM_t fsm)
00276         /*@*/;
00277 
00282 int fsmMapPath(FSM_t fsm)
00283         /*@modifies fsm @*/;
00284 
00289 int fsmMapAttrs(FSM_t fsm)
00290         /*@modifies fsm @*/;
00291 /*@=exportlocal@*/
00292 
00299 int fsmStage(/*@partial@*/ FSM_t fsm, fileStage stage)
00300         /*@globals errno, fileSystem, internalState @*/
00301         /*@modifies fsm, errno, fileSystem, internalState @*/;
00302 
00303 #ifdef __cplusplus
00304 }
00305 #endif
00306 
00307 #endif  /* H_FSM */

Generated on Sun Oct 26 13:01:59 2003 for rpm by doxygen1.2.18