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#
# SCons FSP locking type tester
#
# Version 1.2
# 10-Sep-2009
#
from SCons.Script import ARGUMENTS
def checkForLockingType(check,conf):
"""check for available locking methods"""
fun_lockf=conf.CheckFunc("lockf")
fun_semop=conf.CheckFunc("semop")
fun_shmget=conf.CheckFunc("shmget")
fun_flock=conf.CheckFunc("flock")
# select locking type
check.Message("Checking for FSP locking type... ")
lt=ARGUMENTS.get('locking', 0) or ARGUMENTS.get("with-locking",0) or ARGUMENTS.get("lock",0) or ARGUMENTS.get("with-lock",0)
if lt == "none":
conf.env.Append(CPPFLAGS = '-DFSP_NOLOCKING')
check.Result("none")
elif lt == "lockf" and fun_lockf:
conf.env.Append(CPPFLAGS = '-DFSP_USE_LOCKF')
check.Result("lockf")
elif lt == "semop" and fun_semop and fun_shmget:
conf.env.Append(CPPFLAGS = '-DFSP_USE_SHAREMEM_AND_SEMOP')
check.Result("semop and shmget")
elif lt == "shmget" and fun_shmget and fun_lockf:
conf.env.Append(CPPFLAGS = '-DFSP_USE_SHAREMEM_AND_LOCKF')
check.Result("lockf and shmget")
elif lt == "flock" and fun_flock:
conf.env.Append(CPPFLAGS = '-DFSP_USE_FLOCK')
check.Result("flock")
# AUTODETECT best available locking type
elif fun_semop and fun_shmget:
conf.env.Append(CPPFLAGS = '-DFSP_USE_SHAREMEM_AND_SEMOP')
check.Result("semop and shmget")
elif fun_shmget and fun_lockf:
conf.env.Append(CPPFLAGS = '-DFSP_USE_SHAREMEM_AND_LOCKF')
check.Result("lockf and shmget")
elif fun_lockf:
conf.env.Append(CPPFLAGS = '-DFSP_USE_LOCKF')
check.Result("lockf")
elif fun_flock:
conf.env.Append(CPPFLAGS = '-DFSP_USE_FLOCK')
check.Result("flock")
else:
conf.env.Append(CPPFLAGS = '-DFSP_NOLOCKING')
check.Result("none")
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