//===----------------------------------------------------------------------===//
// Extern C functions
//===----------------------------------------------------------------------===//

// FIXME: Once we have an FFI interface, make these have proper function bodies

// The C "abort" function
func [asmname="abort"] abort()

func [asmname="putchar"]
c_putchar(val : Int32)
func [asmname="print_int"]
c_print_int(p : Builtin.RawPointer, buf_len : Int, x : Int128, Radix : Int,
            uppercase : Bool) -> UInt64
func [asmname="print_uint"]
c_print_uint(p : Builtin.RawPointer, buf_len : Int, x : UInt128, Radix : Int,
             uppercase : Bool) -> UInt64
func [asmname="print_double"]
c_print_double(p : Builtin.RawPointer, x : Double) -> UInt64

func [asmname="mach_absolute_time"] mach_absolute_time() -> UInt64

func [asmname="swift_replOutputIsUTF8"] _isUTF8() -> Bool

// Some file stuff

func [asmname="swift_file_open"]
c_file_open(filename : CString) -> CInt

func [asmname="swift_file_close"]
c_file_close(fd : Int32) -> Int32

func [asmname="swift_file_read"]
c_file_read(fd : Int32, buf : Builtin.RawPointer, sz : Int) -> Int

func [asmname="swift_file_size"]
c_file_size(filename : Builtin.RawPointer) -> Int

func [asmname="swift_fd_size"]
c_fd_size(fd : Int32) -> Int

func [asmname="opendir"]
posix_opendir_hack(dir : Builtin.RawPointer) -> Builtin.RawPointer

func [asmname="posix_readdir_hack"]
posix_readdir_hack(handle : Builtin.RawPointer) -> (Builtin.RawPointer, Int)

func [asmname="closedir"]
posix_closedir_hack(handle : Builtin.RawPointer)

func [asmname="posix_isDirectory_hack"]
posix_isDirectory_hack(handle : Builtin.RawPointer) -> Int

func [asmname="getchar"]
getchar() -> Int32

func [asmname="open"]
posix_open(filename : Builtin.RawPointer, mode : Int32, perm : Int) -> Int32

func [asmname="close"]
posix_close(fd : Int32) -> Int32

func [asmname="lseek"]
posix_seek(fd : Int32, offset : Int, whence : Int32) -> Int

func [asmname="write"]
posix_write(fd : Int32, buf : Builtin.RawPointer, sz : Int) -> Int

func [asmname="read"]
posix_read(fd : Int32, buf : Builtin.RawPointer, sz : Int) -> Int

func [asmname="dup"]
posix_dup(fd : Int32) -> Int32