# The simplified rename model from the SOSP '13 paper
import simsym
import symtypes
import model
import errno
SymByte = simsym.tuninterpreted('SymByte')
SymInode = simsym.tstruct(data=symtypes.tlist(SymByte), nlink=simsym.SInt)
SymIMap = simsym.tmap(simsym.SInt, SymInode)
SymFilename = simsym.tuninterpreted('Filename')
SymDir = symtypes.tdict(SymFilename, simsym.SInt)
class Rename(simsym.tstruct(fname_to_inum=SymDir, inodes=SymIMap)):
@model.methodwrap(src=SymFilename, dst=SymFilename)
def rename(self, src, dst):
if simsym.symnot(self.fname_to_inum.contains(src)):
#return (-1, errno.ENOENT)
return -1
if src == dst:
return 0
if self.fname_to_inum.contains(dst):
self.inodes[self.fname_to_inum[dst]].nlink -= 1
self.fname_to_inum[dst] = self.fname_to_inum[src]
del self.fname_to_inum[src]
return 0
model_class = Rename
# The simplified rename model from the SOSP '13 paper
import simsym
import symtypes
import model
import errno
SymByte = simsym.tuninterpreted('SymByte')
SymInode = simsym.tstruct(data = symtypes.tlist(SymByte),
nlink = simsym.SInt)
SymIMap = simsym.tmap(simsym.SInt, SymInode)
SymFilename = simsym.tuninterpreted('Filename')
SymDir = symtypes.tdict(SymFilename, simsym.SInt)
class Rename(simsym.tstruct(
fname_to_inum=SymDir,
inodes=SymIMap)):
@model.methodwrap(src=SymFilename, dst=SymFilename)
def rename(self, src, dst):
if simsym.symnot(self.fname_to_inum.contains(src)):
#return (-1, errno.ENOENT)
return -1
if src == dst:
return 0
if self.fname_to_inum.contains(dst):
self.inodes[self.fname_to_inum[dst]].nlink -= 1
self.fname_to_inum[dst] = self.fname_to_inum[src]
del self.fname_to_inum[src]
return 0
import os
import simsym
import symtypes
import errno
import model
import signal
import fs_testgen
SFn = simsym.tuninterpreted("SFn")
SInum = simsym.tuninterpreted("SInum")
SDataVal = simsym.tuninterpreted("SDataVal")
SVa = simsym.tuninterpreted("SVa")
SPipeId = simsym.tuninterpreted("SPipeId")
DATAVAL_BYTES = 4096
PAGE_BYTES = 4096
PAGE_DATAVALS = PAGE_BYTES / DATAVAL_BYTES
assert PAGE_BYTES % DATAVAL_BYTES == 0
DATA_MAX_LEN = 8
SPid = simsym.SBool
SOffset = simsym.tsynonym("SOffset", simsym.SInt)
SData = symtypes.tsmalllist(DATA_MAX_LEN, SDataVal, lenType=SOffset)
SPipe = simsym.tstruct(data = SData)
SPipeMap = symtypes.tmap(SPipeId, SPipe)
class SFd(simsym.tstruct(ispipe = simsym.SBool,
pipeid = SPipeId,
pipewriter = simsym.SBool,
inum = SInum,
# This offset is in datavals
off = SOffset)):
import os
import simsym
import symtypes
import errno
import model
import signal
import fs_testgen
SFn = simsym.tuninterpreted("SFn")
SInum = simsym.tuninterpreted("SInum")
SDataVal = simsym.tuninterpreted("SDataVal")
SVa = simsym.tuninterpreted("SVa")
SPipeId = simsym.tuninterpreted("SPipeId")
DATAVAL_BYTES = 4096
PAGE_BYTES = 4096
PAGE_DATAVALS = PAGE_BYTES / DATAVAL_BYTES
assert PAGE_BYTES % DATAVAL_BYTES == 0
DATA_MAX_LEN = 8
SPid = simsym.SBool
SOffset = simsym.tsynonym("SOffset", simsym.SInt)
SData = symtypes.tsmalllist(DATA_MAX_LEN, SDataVal, lenType=SOffset)
SPipe = simsym.tstruct(data=SData)
SPipeMap = symtypes.tmap(SPipeId, SPipe)
class SFd(
simsym.tstruct(
ispipe=simsym.SBool,
pipeid=SPipeId,
# process states
PSTNEW = 1
PSTRUNNING = 2
PSTREADY = 3
PSTWAITING = 4
PSTTERM = 5
class ProcStatus(simsym.SInt):
def _declare_assumptions(self, assume):
super(ProcStatus, self)._declare_assumptions(assume)
assume(self >= PSTNEW)
assume(self <= PSTTERM)
# types about process
PStack = simsym.tuninterpreted("PStack")
PCode = simsym.tuninterpreted("PCode")
PData = simsym.tuninterpreted("PData")
Prio = simsym.tsynonym("Prio", simsym.SInt) # pocess priority
# types and consts about HardwareRegister
GenRegSet = simsym.tuninterpreted("GenRegSet")
StatusWd = simsym.tuninterpreted("StatusWd")
INTOFF = 0
INTON = 1
# types about memory
class MemDesc(symtypes.tstruct(left = simsym.SInt, right = simsym.SInt)):
import os
import simsym
import symtypes
import errno
import model
import signal
#import fs_testgen
AF_INET = 2
AF_INET6 = 10
SOCK_DGRAM = 2
SHUT_RD = 0
SHUT_WR = 1
SHUT_RDWR = 2
SDataVal = simsym.tuninterpreted("SDataVal")
DATAVAL_BYTES = 4096
PAGE_BYTES = 4096
PAGE_DATAVALS = PAGE_BYTES / DATAVAL_BYTES
assert PAGE_BYTES % DATAVAL_BYTES == 0
DATA_MAX_LEN = 8
SPid = simsym.SBool # TODO: bool ???
SOffset = simsym.tsynonym("SOffset", simsym.SInt)
SAddr = simsym.tsynonym("SAddr", simsym.SInt)
SPort = simsym.tsynonym("SPort", simsym.SInt)
SData = symtypes.tsmalllist(DATA_MAX_LEN, SDataVal, lenType=SOffset)
SBuffer = simsym.tstruct(data=SData)
SBindRecord = symtypes.tdict(SPort, symtypes.tdict(SPid, simsym.SBool))