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psblas3/cbind/prec/psb_zprec_cbind_mod.f90

118 lines
2.5 KiB
Fortran

module psb_zprec_cbind_mod
use iso_c_binding
use psb_prec_mod, only : psb_zprec_type
use psb_objhandle_mod
use psb_base_string_cbind_mod
type, bind(c) :: psb_c_zprec
type(c_ptr) :: item = c_null_ptr
end type psb_c_zprec
contains
function psb_c_zprecinit(ictxt,ph,ptype) bind(c) result(res)
use psb_base_mod
use psb_prec_mod
use psb_base_string_cbind_mod
implicit none
integer(psb_c_ipk_) :: res
integer(psb_c_ipk_), value :: ictxt
type(psb_c_zprec) :: ph
character(c_char) :: ptype(*)
type(psb_zprec_type), pointer :: precp
integer(psb_c_ipk_) :: info
character(len=80) :: fptype
res = -1
if (c_associated(ph%item)) then
return
end if
allocate(precp,stat=info)
if (info /= 0) return
ph%item = c_loc(precp)
call stringc2f(ptype,fptype)
call psb_precinit(ictxt,precp,fptype,info)
res = min(0,info)
return
end function psb_c_zprecinit
function psb_c_zprecbld(ah,cdh,ph) bind(c) result(res)
use psb_base_mod
use psb_prec_mod
use psb_objhandle_mod
use psb_base_string_cbind_mod
implicit none
integer(psb_c_ipk_) :: res
type(psb_c_zspmat) :: ah
type(psb_c_zprec) :: ph
type(psb_c_descriptor) :: cdh
type(psb_desc_type), pointer :: descp
type(psb_zspmat_type), pointer :: ap
type(psb_zprec_type), pointer :: precp
integer(psb_c_ipk_) :: info
res = -1
!!$ write(*,*) 'Entry: ', psb_c_cd_get_local_rows(cdh)
if (c_associated(cdh%item)) then
call c_f_pointer(cdh%item,descp)
else
return
end if
if (c_associated(ah%item)) then
call c_f_pointer(ah%item,ap)
else
return
end if
if (c_associated(ph%item)) then
call c_f_pointer(ph%item,precp)
else
return
end if
call psb_precbld(ap,descp, precp, info)
res = min(info,0)
end function psb_c_zprecbld
function psb_c_zprecfree(ph) bind(c) result(res)
use psb_base_mod
use psb_prec_mod
use psb_objhandle_mod
use psb_base_string_cbind_mod
implicit none
integer(psb_c_ipk_) :: res
type(psb_c_zprec) :: ph
type(psb_zprec_type), pointer :: precp
integer(psb_c_ipk_) :: info
res = -1
if (c_associated(ph%item)) then
call c_f_pointer(ph%item,precp)
else
return
end if
call psb_precfree(precp, info)
res = min(info,0)
end function psb_c_zprecfree
end module psb_zprec_cbind_mod