feat(Lib): signal.SIG*,ITIMER_*

Author: litlighilit

src/pylib/Lib/n_signal.nim

@@ -1,11 +1,12 @@
 
 import std/sets
 import ./signal_impl/[
-  pynsig, signals, signal_util, valid_signals_impl
+  pynsig, signals, signal_util, valid_signals_impl, enums
 ]
 
 let NSIG* = int Py_NSIG
-export signals, signal_util
+export signals, signal_util, enums
+export SIG_DFL, SIG_IGN
 
 when defined(unix):
   import ./signal_impl/unixs

src/pylib/Lib/signal_impl/enums.nim

@@ -0,0 +1,70 @@
+
+import std/tables
+import ./pylifecycle except SigInfo
+import ./pynsig
+import ../enum_impl/intEnum
+
+# ITIMER*  (not enum)
+template Exp(sym) =
+  when declared(sym):
+    let sym* = int sym
+
+Exp ITIMER_REAL
+Exp ITIMER_VIRTUAL
+Exp ITIMER_PROF
+
+# SIG*
+DeclIntEnumMeth Signals
+export Signals
+
+using self: Signals
+
+template add_sig(sym) =
+  when declared(sym):
+    when sym != DEF_SIG:
+      let sym* = Signals.add_member(astToStr(sym), sym)
+
+when true:  # just convenient for code folding
+  add_sig SIGHUP
+  add_sig SIGINT
+  add_sig SIGBREAK
+  add_sig SIGQUIT
+  add_sig SIGILL
+  add_sig SIGTRAP
+  add_sig SIGIOT
+  add_sig SIGABRT
+  add_sig SIGEMT
+  add_sig SIGFPE
+  add_sig SIGKILL
+  add_sig SIGBUS
+  add_sig SIGSEGV
+  add_sig SIGSYS
+  add_sig SIGPIPE
+  add_sig SIGALRM
+  add_sig SIGTERM
+  add_sig SIGUSR1
+  add_sig SIGUSR2
+  add_sig SIGCLD
+  add_sig SIGCHLD
+  add_sig SIGPWR
+  add_sig SIGIO
+  add_sig SIGURG
+  add_sig SIGWINCH
+  add_sig SIGPOLL
+  add_sig SIGSTOP
+  add_sig SIGTSTP
+  add_sig SIGCONT
+  add_sig SIGTTIN
+  add_sig SIGTTOU
+  add_sig SIGVTALRM
+  add_sig SIGPROF
+  add_sig SIGXCPU
+  add_sig SIGXFSZ
+  add_sig SIGRTMIN
+  add_sig SIGRTMAX
+  add_sig SIGINFO
+  add_sig SIGSTKFLT
+
+
+
+

src/pylib/Python/pylifecycle/signal/c_syms.nim

@@ -7,6 +7,11 @@ when defined(windows):
 else:
   import std/posix except EINTR, ERANGE
   export posix except EINTR, ERANGE
+  let
+    ITIMER_REAL*{.importc, header: "<sys/time.h>".}: cint
+    ITIMER_VIRTUAL*{.importc, header: "<sys/time.h>".}: cint
+    ITIMER_PROF*{.importc, header: "<sys/time.h>".}: cint
+
 import ./handler_types
 
 const HAVE_SIGACTION* = declared(sigaction)

src/pylib/pyconfig/signal.nim

@@ -29,7 +29,7 @@ AC_LINK_IFELSE HAVE_STRSIGNAL, false:
   proc strsignal(signalnum: cint): cstring {.importc, header: "<string.h>".}
   discard strsignal(0)
 
-const DEF_SIG* = low int  ## we know int.low is smaller than low(cint)
+const DEF_SIG* = -1  ## CPython checks `SIG*` in [0, NSIG)
 when not defined(windows):
   template SIG(sym) =
     const sym* = from_c_int(sym, "<signal.h>", DEF_SIG)