lib/fsm.h File Reference

File state machine to handle a payload within an rpm package. More...

#include "cpio.h"

Go to the source code of this file.

Data Structures

struct  hardLink_s
 Keeps track of the set of all hard links to a file in an archive. More...
struct  fsmIterator_s
 Iterator across package file info, forward on install, backward on erase. More...
struct  fsm_s
 File name and stat information. More...

Defines

#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))

Typedefs

typedef enum fileStage_e fileStage

Enumerations

enum  fileStage_e {
  FSM_UNKNOWN = 0, FSM_INIT = (( 1 ) | ( 0x4000 | 0x1000 )), FSM_PRE = (( 2 ) | ( 0x4000 | 0x1000 )), FSM_PROCESS = (( 3 ) | 0x8000 ),
  FSM_POST = (( 4 ) | ( 0x4000 | 0x1000 )), FSM_UNDO = 5, FSM_FINI = 6, FSM_PKGINSTALL = (( 7 ) | ( 0x4000 | 0x1000 )),
  FSM_PKGERASE = (( 8 ) | ( 0x4000 | 0x1000 )), FSM_PKGBUILD = (( 9 ) | ( 0x4000 | 0x1000 )), FSM_PKGCOMMIT = (( 10 ) | ( 0x4000 | 0x1000 )), FSM_PKGUNDO = (( 11 ) | ( 0x4000 | 0x1000 )),
  FSM_CREATE = (( 17 ) | ( 0x4000 | 0x1000 )), FSM_MAP = (( 18 ) | ( 0x4000 | 0x1000 )), FSM_MKDIRS = (( 19 ) | 0x4000 ), FSM_RMDIRS = (( 20 ) | 0x4000 ),
  FSM_MKLINKS = (( 21 ) | 0x4000 ), FSM_NOTIFY = (( 22 ) | ( 0x4000 | 0x1000 )), FSM_DESTROY = (( 23 ) | ( 0x4000 | 0x1000 )), FSM_VERIFY = (( 24 ) | ( 0x4000 | 0x1000 )),
  FSM_COMMIT = (( 25 ) | ( 0x4000 | 0x1000 )), FSM_UNLINK = (( 33 ) | ( 0x4000 | 0x2000 )), FSM_RENAME = (( 34 ) | ( 0x4000 | 0x2000 )), FSM_MKDIR = (( 35 ) | ( 0x4000 | 0x2000 )),
  FSM_RMDIR = (( 36 ) | ( 0x4000 | 0x2000 )), FSM_CHOWN = (( 37 ) | ( 0x4000 | 0x2000 )), FSM_LCHOWN = (( 38 ) | ( 0x4000 | 0x2000 )), FSM_CHMOD = (( 39 ) | ( 0x4000 | 0x2000 )),
  FSM_UTIME = (( 40 ) | ( 0x4000 | 0x2000 )), FSM_SYMLINK = (( 41 ) | ( 0x4000 | 0x2000 )), FSM_LINK = (( 42 ) | ( 0x4000 | 0x2000 )), FSM_MKFIFO = (( 43 ) | ( 0x4000 | 0x2000 )),
  FSM_MKNOD = (( 44 ) | ( 0x4000 | 0x2000 )), FSM_LSTAT = (( 45 ) | ( 0x4000 | 0x2000 )), FSM_STAT = (( 46 ) | ( 0x4000 | 0x2000 )), FSM_READLINK = (( 47 ) | ( 0x4000 | 0x2000 )),
  FSM_CHROOT = (( 48 ) | ( 0x4000 | 0x2000 )), FSM_NEXT = (( 65 ) | ( 0x4000 | 0x1000 )), FSM_EAT = (( 66 ) | ( 0x4000 | 0x1000 )), FSM_POS = (( 67 ) | ( 0x4000 | 0x1000 )),
  FSM_PAD = (( 68 ) | ( 0x4000 | 0x1000 )), FSM_TRAILER = (( 69 ) | ( 0x4000 | 0x1000 )), FSM_HREAD = (( 70 ) | ( 0x4000 | 0x1000 )), FSM_HWRITE = (( 71 ) | ( 0x4000 | 0x1000 )),
  FSM_DREAD = (( 72 ) | ( 0x4000 | 0x2000 )), FSM_DWRITE = (( 73 ) | ( 0x4000 | 0x2000 )), FSM_ROPEN = (( 129 ) | ( 0x4000 | 0x2000 )), FSM_READ = (( 130 ) | ( 0x4000 | 0x2000 )),
  FSM_RCLOSE = (( 131 ) | ( 0x4000 | 0x2000 )), FSM_WOPEN = (( 132 ) | ( 0x4000 | 0x2000 )), FSM_WRITE = (( 133 ) | ( 0x4000 | 0x2000 )), FSM_WCLOSE = (( 134 ) | ( 0x4000 | 0x2000 ))
}

Functions

const char *const fileStageString (fileStage a)
 Return formatted string representation of file stages.
const char *const fileActionString (fileAction a)
 Return formatted string representation of file disposition.
FSM_t newFSM (void)
 Create file state machine instance.
FSM_t freeFSM (FSM_t fsm)
 Destroy file state machine instance.
int fsmSetup (FSM_t fsm, fileStage goal, const rpmTransactionSet ts, const TFI_t fi, FD_t cfd, unsigned int *archiveSize, const char **failedFile)
 Load external data into file state machine.
int fsmTeardown (FSM_t fsm)
 Clean file state machine.
rpmTransactionSet fsmGetTs (const FSM_t fsm)
 Retrieve transaction set from file state machine iterator.
TFI_t fsmGetFi (const FSM_t fsm)
 Retrieve transaction element file info from file state machine iterator.
int fsmMapPath (FSM_t fsm)
 Map next file path and action.
int fsmMapAttrs (FSM_t fsm)
 Map file stat(2) info.
int fsmStage (FSM_t fsm, fileStage stage)
 File state machine driver.

Variables

int _fsm_debug


Detailed Description

File state machine to handle a payload within an rpm package.

Definition in file fsm.h.


Define Documentation

#define _fd ( _a   )     ((_a) | (FSM_INTERNAL | FSM_DEAD))

Definition at line 26 of file fsm.h.

#define _fi ( _a   )     ((_a) | FSM_INTERNAL)

Definition at line 24 of file fsm.h.

#define _fs ( _a   )     ((_a) | (FSM_INTERNAL | FSM_SYSCALL))

Definition at line 25 of file fsm.h.

#define _fv ( _a   )     ((_a) | FSM_VERBOSE)

Definition at line 23 of file fsm.h.

#define FSM_DEAD   0x1000

Definition at line 21 of file fsm.h.

#define FSM_INTERNAL   0x4000

Definition at line 19 of file fsm.h.

#define FSM_SYSCALL   0x2000

Definition at line 20 of file fsm.h.

#define FSM_VERBOSE   0x8000

Definition at line 18 of file fsm.h.


Typedef Documentation

typedef enum fileStage_e fileStage


Enumeration Type Documentation

Enumerator:
FSM_UNKNOWN 
FSM_INIT 
FSM_PRE 
FSM_PROCESS 
FSM_POST 
FSM_UNDO 
FSM_FINI 
FSM_PKGINSTALL 
FSM_PKGERASE 
FSM_PKGBUILD 
FSM_PKGCOMMIT 
FSM_PKGUNDO 
FSM_CREATE 
FSM_MAP 
FSM_MKDIRS 
FSM_RMDIRS 
FSM_MKLINKS 
FSM_NOTIFY 
FSM_DESTROY 
FSM_VERIFY 
FSM_COMMIT 
FSM_UNLINK 
FSM_RENAME 
FSM_MKDIR 
FSM_RMDIR 
FSM_CHOWN 
FSM_LCHOWN 
FSM_CHMOD 
FSM_UTIME 
FSM_SYMLINK 
FSM_LINK 
FSM_MKFIFO 
FSM_MKNOD 
FSM_LSTAT 
FSM_STAT 
FSM_READLINK 
FSM_CHROOT 
FSM_NEXT 
FSM_EAT 
FSM_POS 
FSM_PAD 
FSM_TRAILER 
FSM_HREAD 
FSM_HWRITE 
FSM_DREAD 
FSM_DWRITE 
FSM_ROPEN 
FSM_READ 
FSM_RCLOSE 
FSM_WOPEN 
FSM_WRITE 
FSM_WCLOSE 

Definition at line 28 of file fsm.h.


Function Documentation

const char* const fileActionString ( fileAction  a  ) 

Return formatted string representation of file disposition.

Parameters:
a file dispostion
Returns:
formatted string

Definition at line 2123 of file fsm.c.

const char* const fileStageString ( fileStage  a  ) 

Return formatted string representation of file stages.

Parameters:
a file stage
Returns:
formatted string

Definition at line 2143 of file fsm.c.

FSM_t freeFSM ( FSM_t  fsm  ) 

Destroy file state machine instance.

Parameters:
fsm file state machine data
Returns:
always NULL

Definition at line 438 of file fsm.c.

TFI_t fsmGetFi ( const FSM_t  fsm  ) 

Retrieve transaction element file info from file state machine iterator.

Parameters:
fsm file state machine data
Returns:
transaction element file info

Definition at line 34 of file fsm.c.

rpmTransactionSet fsmGetTs ( const FSM_t  fsm  ) 

Retrieve transaction set from file state machine iterator.

Parameters:
fsm file state machine data
Returns:
transaction set

Definition at line 27 of file fsm.c.

int fsmMapAttrs ( FSM_t  fsm  ) 

Map file stat(2) info.

Parameters:
fsm file state machine data

Definition at line 616 of file fsm.c.

int fsmMapPath ( FSM_t  fsm  ) 

Map next file path and action.

Parameters:
fsm file state machine data

Definition at line 521 of file fsm.c.

int fsmSetup ( FSM_t  fsm,
fileStage  goal,
const rpmTransactionSet  ts,
const TFI_t  fi,
FD_t  cfd,
unsigned int *  archiveSize,
const char **  failedFile 
)

Load external data into file state machine.

Parameters:
fsm file state machine data
goal 
ts transaction set
fi transaction element file info
archiveSize pointer to archive size
failedFile pointer to first file name that failed.
Returns:
0 on success

Definition at line 454 of file fsm.c.

int fsmStage ( FSM_t  fsm,
fileStage  stage 
)

File state machine driver.

Parameters:
fsm file state machine data
stage next stage
Returns:
0 on success

Definition at line 1205 of file fsm.c.

int fsmTeardown ( FSM_t  fsm  ) 

Clean file state machine.

Parameters:
fsm file state machine data
Returns:
0 on success

Definition at line 504 of file fsm.c.

FSM_t newFSM ( void   ) 

Create file state machine instance.

Returns:
file state machine data

Definition at line 432 of file fsm.c.


Variable Documentation

Definition at line 20 of file fsm.c.


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