Update copyright year in embed.pl, and everything that it builds.

[perl5.git] / reentr.pl

diff --git a/reentr.pl b/reentr.pl
index 13cf4d1..ea327a0 100644 (file)
--- a/reentr.pl
+++ b/reentr.pl
@@ -13,7 +13,7 @@ BEGIN {
 use strict;
 use Getopt::Std;
 my %opts;
-getopts('U', \%opts);
+getopts('Uv', \%opts);
 
 my %map = (
           V => "void",
@@ -40,16 +40,15 @@ my %map = (
 # Example #3: S_CBI   means type func_r(const char*, char*, int)
 
 
-safer_unlink 'reentr.h';
-die "reentr.h: $!" unless open(H, ">reentr.h");
-binmode H;
-select H;
+# safer_unlink 'reentr.h';
+my $h = safer_open("reentr.h-new");
+select $h;
 print <<EOF;
 /* -*- buffer-read-only: t -*-
  *
  *    reentr.h
  *
- *    Copyright (C) 2002, 2003, 2005, 2006 by Larry Wall and others
+ *    Copyright (C) 2002, 2003, 2005, 2006, 2007 by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -61,13 +60,29 @@ print <<EOF;
 #ifndef REENTR_H
 #define REENTR_H
 
+/* If compiling for a threaded perl, we will macro-wrap the system/library
+ * interfaces (e.g. getpwent()) which have threaded versions
+ * (e.g. getpwent_r()), which will handle things correctly for
+ * the Perl interpreter, but otherwise (for XS) the wrapping does
+ * not take place.  See L<perlxs/Thread-aware system interfaces>.
+ */
+
+#ifndef PERL_REENTR_API
+# if defined(PERL_CORE) || defined(PERL_EXT)
+#  define PERL_REENTR_API 1
+# else
+#  define PERL_REENTR_API 0
+# endif
+#endif
+
 #ifdef USE_REENTRANT_API
  
 /* Deprecations: some platforms have the said reentrant interfaces
  * but they are declared obsolete and are not to be used.  Often this
  * means that the platform has threadsafed the interfaces (hopefully).
  * All this is OS version dependent, so we are of course fooling ourselves.
- * If you know of more deprecations on some platforms, please add your own. */
+ * If you know of more deprecations on some platforms, please add your own
+ * (by editing reentr.pl, mind!) */
 
 #ifdef __hpux
 #   undef HAS_CRYPT_R
@@ -94,9 +109,9 @@ print <<EOF;
  * memzero out certain structures before calling the functions.
  */
 #if defined(__OpenBSD__)
-#    define REENTR_MEMZERO(a,b) memzero(a,b),
+#    define REENTR_MEMZERO(a,b) memzero(a,b)
 #else
-#    define REENTR_MEMZERO(a,b)
+#    define REENTR_MEMZERO(a,b) 0
 #endif 
 
 #ifdef NETDB_R_OBSOLETE
@@ -316,7 +331,7 @@ close DATA;
 
 # Prepare to continue writing the reentr.h.
 
-select H;
+select $h;
 
 {
     # Write out all the known prototype signatures.
@@ -547,7 +562,7 @@ EOF
            push @size, <<EOF;
 #   if defined(HAS_SYSCONF) && defined($sc) && !defined(__GLIBC__)
        PL_reentrant_buffer->$sz = sysconf($sc);
-       if (PL_reentrant_buffer->$sz == -1)
+       if (PL_reentrant_buffer->$sz == (size_t) -1)
                PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE;
 #   else
 #       if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
@@ -634,6 +649,7 @@ EOF
        push @wrap, $ifdef;
 
        push @wrap, <<EOF;
+#  if defined(PERL_REENTR_API) && (PERL_REENTR_API+0 == 1)
 #   undef $func
 EOF
 
@@ -698,13 +714,17 @@ EOF
                         } split '', $b;
                $w = ", $w" if length $v;
            }
+
            my $call = "${func}_r($v$w)";
+           if ($func eq 'localtime') {
+               $call = "L_R_TZSET $call";
+           }
 
             # Must make OpenBSD happy
             my $memzero = '';
             if($p =~ /D$/ &&
                 ($genfunc eq 'protoent' || $genfunc eq 'servent')) {
-                $memzero = 'REENTR_MEMZERO(&PL_reentrant_buffer->_' . $genfunc . '_data, sizeof(PL_reentrant_buffer->_' . $genfunc . '_data))';
+                $memzero = 'REENTR_MEMZERO(&PL_reentrant_buffer->_' . $genfunc . '_data, sizeof(PL_reentrant_buffer->_' . $genfunc . '_data)),';
             }
            push @wrap, <<EOF;
 #   if !defined($func) && ${FUNC}_R_PROTO == REENTRANT_PROTO_$p
@@ -732,10 +752,14 @@ EOF
                }
            }
            push @wrap, <<EOF;
-#   endif
+#  endif /* if defined(PERL_REENTR_API) && (PERL_REENTR_API+0 == 1) */
 EOF
        }
 
+           push @wrap, <<EOF;
+#   endif /* HAS_\U$func */
+EOF
+
        push @wrap, $endif, "\n";
     }
 }
@@ -763,20 +787,20 @@ typedef struct {
 /* ex: set ro: */
 EOF
 
-close(H);
+safer_close($h);
+rename_if_different('reentr.h-new', 'reentr.h');
 
 # Prepare to write the reentr.c.
 
-safer_unlink 'reentr.c';
-die "reentr.c: $!" unless open(C, ">reentr.c");
-binmode C;
-select C;
+# safer_unlink 'reentr.c';
+my $c = safer_open("reentr.c-new");
+select $c;
 print <<EOF;
 /* -*- buffer-read-only: t -*-
  *
  *    reentr.c
  *
- *    Copyright (C) 2002, 2003, 2005, 2006 by Larry Wall and others
+ *    Copyright (C) 2002, 2003, 2005, 2006, 2007 by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -831,6 +855,14 @@ Perl_reentrant_retry(const char *f, ...)
 {
     dTHX;
     void *retptr = NULL;
+    va_list ap;
+#ifdef USE_REENTRANT_API
+    /* Easier to special case this here than in embed.pl. (Look at what it
+       generates for proto.h) */
+    PERL_ARGS_ASSERT_REENTRANT_RETRY;
+#endif
+    va_start(ap, f);
+    {
 #ifdef USE_REENTRANT_API
 #  if defined(USE_HOSTENT_BUFFER) || defined(USE_GRENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PWENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
     void *p0;
@@ -844,9 +876,6 @@ Perl_reentrant_retry(const char *f, ...)
 #  if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
     int anint;
 #  endif
-    va_list ap;
-
-    va_start(ap, f);
 
     switch (PL_op->op_type) {
 #ifdef USE_HOSTENT_BUFFER
@@ -1049,17 +1078,20 @@ Perl_reentrant_retry(const char *f, ...)
        /* Not known how to retry, so just fail. */
        break;
     }
-
-    va_end(ap);
 #else
     PERL_UNUSED_ARG(f);
 #endif
+    }
+    va_end(ap);
     return retptr;
 }
 
 /* ex: set ro: */
 EOF
 
+safer_close($c);
+rename_if_different('reentr.c-new', 'reentr.c');
+
 __DATA__
 asctime S      |time   |const struct tm|B_SB|B_SBI|I_SB|I_SBI
 crypt CC       |crypt  |struct crypt_data|B_CCS|B_CCD|D=CRYPTD*