/*
* reentr.h
*
- * Copyright (c) 1997-2002, Larry Wall
+ * Copyright (C) 2002, 2003, 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.
*
* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
- * This file is built by reentrl.pl from data in reentr.pl.
+ * This file is built by reentr.pl from data in reentr.pl.
*/
#ifndef REENTR_H
#ifdef __hpux
# undef HAS_CRYPT_R
# undef HAS_DRAND48_R
+# undef HAS_ENDGRENT_R
+# undef HAS_ENDPWENT_R
# undef HAS_GETGRENT_R
# undef HAS_GETPWENT_R
# undef HAS_SETLOCALE_R
EOF
-my %seenh;
-my %seena;
-my @seenf;
-my %seenp;
-my %seent;
-my %seens;
-my %seend;
-my %seenu;
+my %seenh; # the different prototypes signatures for this function
+my %seena; # the different prototypes signatures for this function in order
+my @seenf; # all the seen functions
+my %seenp; # the different prototype signatures for all functions
+my %seent; # the return type of this function
+my %seens; # the type of this function's "S"
+my %seend; # the type of this function's "D"
+my %seenm; # all the types
+my %seenu; # the length of the argument list of this function
-while (<DATA>) {
+while (<DATA>) { # Read in the protypes.
next if /^\s+$/;
chomp;
- my ($f, $h, $t, @p) = split(/\s*\|\s*/, $_, -1);
+ my ($func, $hdr, $type, @p) = split(/\s*\|\s*/, $_, -1);
my $u;
- ($f, $u) = split(' ', $f);
- $seenu{$f} = defined $u ? length $u : 0;
- my $F = uc $f;
- push @seenf, $f;
+ # Split off the real function name and the argument list.
+ ($func, $u) = split(' ', $func);
+ $seenu{$func} = defined $u ? length $u : 0;
+ my $FUNC = uc $func; # for output.
+ push @seenf, $func;
my %m = %map;
- if ($t) {
- $m{S} = "$t*";
- $m{R} = "$t**";
+ if ($type) {
+ $m{S} = "$type*";
+ $m{R} = "$type**";
}
+
+ # Set any special mapping variables (like X=x_t)
if (@p) {
while ($p[-1] =~ /=/) {
my ($k, $v) = ($p[-1] =~ /^([A-Za-z])\s*=\s*(.*)/);
pop @p;
}
}
- if ($opts{U} && open(U, ">d_${f}_r.U")) {
+
+ # If given the -U option open up the metaconfig unit for this function.
+ if ($opts{U} && open(U, ">d_${func}_r.U")) {
select U;
}
- my $prereqh = $h eq 'stdio' ? '' : "i_$h"; # There's no i_stdio.
- print <<EOF if $opts{U};
-?RCS: \$Id: d_${f}_r.U,v $
+
+ if ($opts{U}) {
+ # The metaconfig units needs prerequisite dependencies.
+ my $prereqs = '';
+ my $prereqh = '';
+ my $prereqsh = '';
+ if ($hdr ne 'stdio') { # There's no i_stdio.
+ $prereqs = "i_$hdr";
+ $prereqh = "$hdr.h";
+ $prereqsh = "\$$prereqs $prereqh";
+ }
+ my @prereq = qw(Inlibc Protochk Hasproto i_systypes usethreads);
+ push @prereq, $prereqs;
+ my $hdrs = "\$i_systypes sys/types.h define stdio.h $prereqsh";
+ if ($hdr eq 'time') {
+ $hdrs .= " \$i_systime sys/time.h";
+ push @prereq, 'i_systime';
+ }
+ # Output the metaconfig unit header.
+ print <<EOF;
+?RCS: \$Id: d_${func}_r.U,v $
?RCS:
-?RCS: Copyright (c) 2002 Jarkko Hietaniemi
+?RCS: Copyright (c) 2002,2003 Jarkko Hietaniemi
?RCS:
?RCS: You may distribute under the terms of either the GNU General Public
?RCS: License or the Artistic License, as specified in the README file.
?RCS:
?RCS: Generated by the reentr.pl from the Perl 5.8 distribution.
?RCS:
-?MAKE:d_${f}_r ${f}_r_proto: Inlibc Protochk i_systypes $prereqh
+?MAKE:d_${func}_r ${func}_r_proto: @prereq
?MAKE: -pick add \$@ %<
-?S:d_${f}_r:
-?S: This variable conditionally defines the HAS_${F}_R symbol,
-?S: which indicates to the C program that the ${f}_r()
+?S:d_${func}_r:
+?S: This variable conditionally defines the HAS_${FUNC}_R symbol,
+?S: which indicates to the C program that the ${func}_r()
?S: routine is available.
?S:.
-?S:${f}_r_proto:
-?S: This variable encodes the prototype of ${f}_r.
+?S:${func}_r_proto:
+?S: This variable encodes the prototype of ${func}_r.
+?S: It is zero if d_${func}_r is undef, and one of the
+?S: REENTRANT_PROTO_T_ABC macros of reentr.h if d_${func}_r
+?S: is defined.
?S:.
-?C:HAS_${F}_R:
-?C: This symbol, if defined, indicates that the ${f}_r routine
-?C: is available to ${f} re-entrantly.
+?C:HAS_${FUNC}_R:
+?C: This symbol, if defined, indicates that the ${func}_r routine
+?C: is available to ${func} re-entrantly.
?C:.
-?C:${F}_R_PROTO:
-?C: This symbol encodes the prototype of ${f}_r.
+?C:${FUNC}_R_PROTO:
+?C: This symbol encodes the prototype of ${func}_r.
+?C: It is zero if d_${func}_r is undef, and one of the
+?C: REENTRANT_PROTO_T_ABC macros of reentr.h if d_${func}_r
+?C: is defined.
?C:.
-?H:#\$d_${f}_r HAS_${F}_R /**/
-?H:#define ${F}_R_PROTO \$${f}_r_proto /**/
+?H:#\$d_${func}_r HAS_${FUNC}_R /**/
+?H:#define ${FUNC}_R_PROTO \$${func}_r_proto /**/
?H:.
-?T:try hdrs
-?LINT:set d_${f}_r
-?LINT:set ${f}_r_proto
-: see if ${f}_r exists
-set ${f}_r d_${f}_r
+?T:try hdrs d_${func}_r_proto
+?LINT:set d_${func}_r
+?LINT:set ${func}_r_proto
+: see if ${func}_r exists
+set ${func}_r d_${func}_r
eval \$inlibc
-case "\$d_${f}_r" in
+case "\$d_${func}_r" in
"\$define")
- hdrs="\$i_systypes sys/types.h define stdio.h \$i_${h} $h.h"
EOF
- for my $p (@p) {
- my ($r, $a) = ($p =~ /^(.)_(.+)/);
- my $v = join(", ", map { $m{$_} } split '', $a);
- if ($opts{U}) {
- print <<EOF ;
- case "\$${f}_r_proto" in
- ''|0) try='$m{$r} ${f}_r($v);'
- ./protochk "extern \$try" \$hdrs && ${f}_r_proto=$p ;;
+ print <<EOF;
+ hdrs="$hdrs"
+ case "\$d_${func}_r_proto:\$usethreads" in
+ ":define") d_${func}_r_proto=define
+ set d_${func}_r_proto ${func}_r \$hdrs
+ eval \$hasproto ;;
+ *) ;;
esac
+ case "\$d_${func}_r_proto" in
+ define)
EOF
- }
- $seenh{$f}->{$p}++;
- push @{$seena{$f}}, $p;
- $seenp{$p}++;
- $seent{$f} = $t;
- $seens{$f} = $m{S};
- $seend{$f} = $m{D};
- }
+ }
+ for my $p (@p) {
+ my ($r, $a) = ($p =~ /^(.)_(.+)/);
+ my $v = join(", ", map { $m{$_} } split '', $a);
if ($opts{U}) {
- print <<EOF;
- case "\$${f}_r_proto" in
- '') d_${f}_r=undef
- ${f}_r_proto=0
- echo "Disabling ${f}_r, cannot determine prototype." ;;
- * ) case "\$${f}_r_proto" in
+ print <<EOF ;
+ case "\$${func}_r_proto" in
+ ''|0) try='$m{$r} ${func}_r($v);'
+ ./protochk "extern \$try" \$hdrs && ${func}_r_proto=$p ;;
+ esac
+EOF
+ }
+ $seenh{$func}->{$p}++;
+ push @{$seena{$func}}, $p;
+ $seenp{$p}++;
+ $seent{$func} = $type;
+ $seens{$func} = $m{S};
+ $seend{$func} = $m{D};
+ $seenm{$func} = \%m;
+ }
+ if ($opts{U}) {
+ print <<EOF;
+ case "\$${func}_r_proto" in
+ ''|0) d_${func}_r=undef
+ ${func}_r_proto=0
+ echo "Disabling ${func}_r, cannot determine prototype." >&4 ;;
+ * ) case "\$${func}_r_proto" in
REENTRANT_PROTO*) ;;
- *) ${f}_r_proto="REENTRANT_PROTO_\$${f}_r_proto" ;;
+ *) ${func}_r_proto="REENTRANT_PROTO_\$${func}_r_proto" ;;
esac
echo "Prototype: \$try" ;;
esac
;;
-*) ${f}_r_proto=0
+ *) case "\$usethreads" in
+ define) echo "${func}_r has no prototype, not using it." >&4 ;;
+ esac
+ d_${func}_r=undef
+ ${func}_r_proto=0
+ ;;
+ esac
+ ;;
+*) ${func}_r_proto=0
;;
esac
close DATA;
+# Prepare to continue writing the reentr.h.
+
select H;
{
+ # Write out all the known prototype signatures.
my $i = 1;
for my $p (sort keys %seenp) {
print "#define REENTRANT_PROTO_${p} ${i}\n";
}
}
+my @struct; # REENTR struct members
+my @size; # struct member buffer size initialization code
+my @init; # struct member buffer initialization (malloc) code
+my @free; # struct member buffer release (free) code
+my @wrap; # the wrapper (foo(a) -> foo_r(a,...)) cpp code
+my @define; # defines for optional features
+
sub ifprotomatch {
- my $F = shift;
- join " || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @_;
+ my $FUNC = shift;
+ join " || ", map { "${FUNC}_R_PROTO == REENTRANT_PROTO_$_" } @_;
}
-my @struct;
-my @size;
-my @init;
-my @free;
-my @wrap;
-my @define;
-
sub pushssif {
push @struct, @_;
push @size, @_;
}
sub pushinitfree {
- my $f = shift;
+ my $func = shift;
push @init, <<EOF;
- New(31338, PL_reentrant_buffer->_${f}_buffer, PL_reentrant_buffer->_${f}_size, char);
+ New(31338, PL_reentrant_buffer->_${func}_buffer, PL_reentrant_buffer->_${func}_size, char);
EOF
push @free, <<EOF;
- Safefree(PL_reentrant_buffer->_${f}_buffer);
+ Safefree(PL_reentrant_buffer->_${func}_buffer);
EOF
}
/* The @F using \L$n? */
EOF
- for my $f (@F) {
- my $F = uc $f;
- my $h = "${F}_R_HAS_$n";
- push @H, $h;
- my @h = grep { /$p/ } @{$seena{$f}};
+ my $GENFUNC;
+ for my $func (@F) {
+ my $FUNC = uc $func;
+ my $HAS = "${FUNC}_R_HAS_$n";
+ push @H, $HAS;
+ my @h = grep { /$p/ } @{$seena{$func}};
+ unless (defined $GENFUNC) {
+ $GENFUNC = $FUNC;
+ $GENFUNC =~ s/^GET//;
+ }
if (@h) {
- push @define, "#if defined(HAS_${F}_R) && (" . join(" || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @h) . ")\n";
+ push @define, "#if defined(HAS_${FUNC}_R) && (" . join(" || ", map { "${FUNC}_R_PROTO == REENTRANT_PROTO_$_" } @h) . ")\n";
push @define, <<EOF;
-# define $h
+# define $HAS
#else
-# undef $h
+# undef $HAS
#endif
EOF
}
}
+ return if @F == 1;
push @define, <<EOF;
/* Any of the @F using \L$n? */
EOF
push @define, "#if (" . join(" || ", map { "defined($_)" } @H) . ")\n";
push @define, <<EOF;
-# define USE_${H}_$n
+# define USE_${GENFUNC}_$n
#else
-# undef USE_${H}_$n
+# undef USE_${GENFUNC}_$n
#endif
EOF
}
+define('BUFFER', 'B',
+ qw(getgrent getgrgid getgrnam));
+
define('PTR', 'R',
qw(getgrent getgrgid getgrnam));
define('PTR', 'R',
qw(getspent getspnam));
define('FPTR', 'H',
- qw(getgrent getgrgid getgrnam));
+ qw(getgrent getgrgid getgrnam setgrent endgrent));
define('FPTR', 'H',
- qw(getpwent getpwnam getpwuid));
+ qw(getpwent getpwnam getpwuid setpwent endpwent));
+
+define('BUFFER', 'B',
+ qw(getpwent getpwgid getpwnam));
define('PTR', 'R',
qw(gethostent gethostbyaddr gethostbyname));
define('PTR', 'R',
qw(getservent getservbyname getservbyport));
+define('BUFFER', 'B',
+ qw(gethostent gethostbyaddr gethostbyname));
+define('BUFFER', 'B',
+ qw(getnetent getnetbyaddr getnetbyname));
+define('BUFFER', 'B',
+ qw(getprotoent getprotobyname getprotobynumber));
+define('BUFFER', 'B',
+ qw(getservent getservbyname getservbyport));
+
define('ERRNO', 'E',
qw(gethostent gethostbyaddr gethostbyname));
define('ERRNO', 'E',
qw(getnetent getnetbyaddr getnetbyname));
-for my $f (@seenf) {
- my $F = uc $f;
- my $ifdef = "#ifdef HAS_${F}_R\n";
- my $endif = "#endif /* HAS_${F}_R */\n";
- if (exists $seena{$f}) {
- my @p = @{$seena{$f}};
- if ($f =~ /^(asctime|ctime|getlogin|setlocale|strerror|ttyname)$/) {
+# The following loop accumulates the "ssif" (struct, size, init, free)
+# sections that declare the struct members (in reentr.h), and the buffer
+# size initialization, buffer initialization (malloc), and buffer
+# release (free) code (in reentr.c).
+#
+# The loop also contains a lot of intrinsic logic about groups of
+# functions (since functions of certain kind operate the same way).
+
+for my $func (@seenf) {
+ my $FUNC = uc $func;
+ my $ifdef = "#ifdef HAS_${FUNC}_R\n";
+ my $endif = "#endif /* HAS_${FUNC}_R */\n";
+ if (exists $seena{$func}) {
+ my @p = @{$seena{$func}};
+ if ($func =~ /^(asctime|ctime|getlogin|setlocale|strerror|ttyname)$/) {
pushssif $ifdef;
push @struct, <<EOF;
- char* _${f}_buffer;
- size_t _${f}_size;
+ char* _${func}_buffer;
+ size_t _${func}_size;
EOF
push @size, <<EOF;
- PL_reentrant_buffer->_${f}_size = 256; /* Make something up. */
+ PL_reentrant_buffer->_${func}_size = REENTRANTSMALLSIZE;
EOF
- pushinitfree $f;
+ pushinitfree $func;
pushssif $endif;
}
- elsif ($f =~ /^(crypt|drand48|gmtime|localtime|random)$/) {
+ elsif ($func =~ /^(crypt)$/) {
pushssif $ifdef;
push @struct, <<EOF;
- $seent{$f} _${f}_struct;
+#if CRYPT_R_PROTO == REENTRANT_PROTO_B_CCD
+ $seend{$func} _${func}_data;
+#else
+ $seent{$func} *_${func}_struct_buffer;
+#endif
+EOF
+ push @init, <<EOF;
+#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
+ PL_reentrant_buffer->_${func}_struct_buffer = 0;
+#endif
EOF
- if ($f eq 'crypt') {
- push @init, <<EOF;
-#ifdef __GLIBC__
- PL_reentrant_buffer->_${f}_struct.initialized = 0;
+ push @free, <<EOF;
+#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
+ Safefree(PL_reentrant_buffer->_${func}_struct_buffer);
#endif
EOF
- }
+ pushssif $endif;
+ }
+ elsif ($func =~ /^(drand48|gmtime|localtime|random|srandom)$/) {
+ pushssif $ifdef;
+ push @struct, <<EOF;
+ $seent{$func} _${func}_struct;
+EOF
if ($1 eq 'drand48') {
push @struct, <<EOF;
- double _${f}_double;
+ double _${func}_double;
+EOF
+ } elsif ($1 eq 'random') {
+ push @struct, <<EOF;
+# if RANDOM_R_PROTO == REENTRANT_PROTO_I_iS
+ int _${func}_retval;
+# endif
+# if RANDOM_R_PROTO == REENTRANT_PROTO_I_lS
+ long _${func}_retval;
+# endif
+# if RANDOM_R_PROTO == REENTRANT_PROTO_I_St
+ int32_t _${func}_retval;
+# endif
EOF
}
pushssif $endif;
}
- elsif ($f =~ /^(getgrnam|getpwnam|getspnam)$/) {
+ elsif ($func =~ /^(getgrnam|getpwnam|getspnam)$/) {
pushssif $ifdef;
- my $g = $f;
- $g =~ s/nam/ent/g;
- my $G = uc $g;
+ # 'genfunc' can be read either as 'generic' or 'genre',
+ # it represents a group of functions.
+ my $genfunc = $func;
+ $genfunc =~ s/nam/ent/g;
+ $genfunc =~ s/^get//;
+ my $GENFUNC = uc $genfunc;
push @struct, <<EOF;
- $seent{$f} _${g}_struct;
- char* _${g}_buffer;
- size_t _${g}_size;
+ $seent{$func} _${genfunc}_struct;
+ char* _${genfunc}_buffer;
+ size_t _${genfunc}_size;
EOF
push @struct, <<EOF;
-# ifdef USE_${G}_PTR
- $seent{$f}* _${g}_ptr;
+# ifdef USE_${GENFUNC}_PTR
+ $seent{$func}* _${genfunc}_ptr;
# endif
EOF
- if ($g eq 'getspent') {
- push @size, <<EOF;
- PL_reentrant_buffer->_${g}_size = 1024;
-EOF
- } else {
- push @struct, <<EOF;
-# ifdef USE_${G}_FPTR
- FILE* _${g}_fptr;
+ push @struct, <<EOF;
+# ifdef USE_${GENFUNC}_FPTR
+ FILE* _${genfunc}_fptr;
# endif
EOF
- push @init, <<EOF;
-# ifdef USE_${G}_FPTR
- PL_reentrant_buffer->_${g}_fptr = NULL;
+ push @init, <<EOF;
+# ifdef USE_${GENFUNC}_FPTR
+ PL_reentrant_buffer->_${genfunc}_fptr = NULL;
# endif
EOF
- my $sc = $g eq 'getgrent' ?
+ my $sc = $genfunc eq 'grent' ?
'_SC_GETGR_R_SIZE_MAX' : '_SC_GETPW_R_SIZE_MAX';
- push @size, <<EOF;
+ my $sz = "_${genfunc}_size";
+ push @size, <<EOF;
# if defined(HAS_SYSCONF) && defined($sc) && !defined(__GLIBC__)
- PL_reentrant_buffer->_${g}_size = sysconf($sc);
+ PL_reentrant_buffer->$sz = sysconf($sc);
+ if (PL_reentrant_buffer->$sz == -1)
+ PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE;
# else
# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
- PL_reentrant_buffer->_${g}_size = SIABUFSIZ;
+ PL_reentrant_buffer->$sz = SIABUFSIZ;
# else
# ifdef __sgi
- PL_reentrant_buffer->_${g}_size = BUFSIZ;
+ PL_reentrant_buffer->$sz = BUFSIZ;
# else
- PL_reentrant_buffer->_${g}_size = 2048;
+ PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE;
# endif
# endif
# endif
EOF
- }
- pushinitfree $g;
+ pushinitfree $genfunc;
pushssif $endif;
}
- elsif ($f =~ /^(gethostbyname|getnetbyname|getservbyname|getprotobyname)$/) {
+ elsif ($func =~ /^(gethostbyname|getnetbyname|getservbyname|getprotobyname)$/) {
pushssif $ifdef;
- my $g = $f;
- $g =~ s/byname/ent/;
- my $G = uc $g;
- my $D = ifprotomatch($F, grep {/D/} @p);
- my $d = $seend{$f};
+ my $genfunc = $func;
+ $genfunc =~ s/byname/ent/;
+ $genfunc =~ s/^get//;
+ my $GENFUNC = uc $genfunc;
+ my $D = ifprotomatch($FUNC, grep {/D/} @p);
+ my $d = $seend{$func};
+ $d =~ s/\*$//; # snip: we need need the base type.
push @struct, <<EOF;
- $seent{$f} _${g}_struct;
+ $seent{$func} _${genfunc}_struct;
# if $D
- $d _${g}_data;
+ $d _${genfunc}_data;
# else
- char* _${g}_buffer;
- size_t _${g}_size;
+ char* _${genfunc}_buffer;
+ size_t _${genfunc}_size;
# endif
-# ifdef USE_${G}_PTR
- $seent{$f}* _${g}_ptr;
+# ifdef USE_${GENFUNC}_PTR
+ $seent{$func}* _${genfunc}_ptr;
# endif
EOF
push @struct, <<EOF;
-# ifdef USE_${G}_ERRNO
- int _${g}_errno;
+# ifdef USE_${GENFUNC}_ERRNO
+ int _${genfunc}_errno;
# endif
EOF
push @size, <<EOF;
#if !($D)
- PL_reentrant_buffer->_${g}_size = 2048; /* Any better ideas? */
+ PL_reentrant_buffer->_${genfunc}_size = REENTRANTUSUALSIZE;
#endif
EOF
push @init, <<EOF;
#if !($D)
- New(31338, PL_reentrant_buffer->_${g}_buffer, PL_reentrant_buffer->_${g}_size, char);
+ New(31338, PL_reentrant_buffer->_${genfunc}_buffer, PL_reentrant_buffer->_${genfunc}_size, char);
#endif
EOF
push @free, <<EOF;
#if !($D)
- Safefree(PL_reentrant_buffer->_${g}_buffer);
+ Safefree(PL_reentrant_buffer->_${genfunc}_buffer);
#endif
EOF
pushssif $endif;
}
- elsif ($f =~ /^(readdir|readdir64)$/) {
+ elsif ($func =~ /^(readdir|readdir64)$/) {
pushssif $ifdef;
- my $R = ifprotomatch($F, grep {/R/} @p);
+ my $R = ifprotomatch($FUNC, grep {/R/} @p);
push @struct, <<EOF;
- $seent{$f}* _${f}_struct;
- size_t _${f}_size;
+ $seent{$func}* _${func}_struct;
+ size_t _${func}_size;
# if $R
- $seent{$f}* _${f}_ptr;
+ $seent{$func}* _${func}_ptr;
# endif
EOF
push @size, <<EOF;
/* This is the size Solaris recommends.
* (though we go static, should use pathconf() instead) */
- PL_reentrant_buffer->_${f}_size = sizeof($seent{$f}) + MAXPATHLEN + 1;
+ PL_reentrant_buffer->_${func}_size = sizeof($seent{$func}) + MAXPATHLEN + 1;
EOF
push @init, <<EOF;
- PL_reentrant_buffer->_${f}_struct = ($seent{$f}*)safemalloc(PL_reentrant_buffer->_${f}_size);
+ PL_reentrant_buffer->_${func}_struct = ($seent{$func}*)safemalloc(PL_reentrant_buffer->_${func}_size);
EOF
push @free, <<EOF;
- Safefree(PL_reentrant_buffer->_${f}_struct);
+ Safefree(PL_reentrant_buffer->_${func}_struct);
EOF
pushssif $endif;
}
push @wrap, $ifdef;
-# Doesn't implement the buffer growth loop for glibc gethostby*().
push @wrap, <<EOF;
-# undef $f
+# undef $func
EOF
+
+ # Write out what we have learned.
+
my @v = 'a'..'z';
- my $v = join(", ", @v[0..$seenu{$f}-1]);
+ my $v = join(", ", @v[0..$seenu{$func}-1]);
for my $p (@p) {
my ($r, $a) = split '_', $p;
my $test = $r eq 'I' ? ' == 0' : '';
my $true = 1;
- my $false = 0;
- my $g = $f;
- if ($g =~ /^(?:get|set|end)(pw|gr|host|net|proto|serv|sp)/) {
- $g = "get$1ent";
- } elsif ($g eq 'srand48') {
- $g = "drand48";
+ my $genfunc = $func;
+ if ($genfunc =~ /^(?:get|set|end)(pw|gr|host|net|proto|serv|sp)/) {
+ $genfunc = "${1}ent";
+ } elsif ($genfunc eq 'srand48') {
+ $genfunc = "drand48";
}
my $b = $a;
my $w = '';
- substr($b, 0, $seenu{$f}) = '';
- if ($b =~ /R/) {
- $true = "PL_reentrant_buffer->_${g}_ptr";
- } elsif ($b =~ /T/ && $f eq 'drand48') {
- $true = "PL_reentrant_buffer->_${g}_double";
+ substr($b, 0, $seenu{$func}) = '';
+ if ($func =~ /^random$/) {
+ $true = "PL_reentrant_buffer->_random_retval";
+ } elsif ($b =~ /R/) {
+ $true = "PL_reentrant_buffer->_${genfunc}_ptr";
+ } elsif ($b =~ /T/ && $func eq 'drand48') {
+ $true = "PL_reentrant_buffer->_${genfunc}_double";
} elsif ($b =~ /S/) {
- if ($f =~ /^readdir/) {
- $true = "PL_reentrant_buffer->_${g}_struct";
+ if ($func =~ /^readdir/) {
+ $true = "PL_reentrant_buffer->_${genfunc}_struct";
} else {
- $true = "&PL_reentrant_buffer->_${g}_struct";
+ $true = "&PL_reentrant_buffer->_${genfunc}_struct";
}
} elsif ($b =~ /B/) {
- $true = "PL_reentrant_buffer->_${g}_buffer";
+ $true = "PL_reentrant_buffer->_${genfunc}_buffer";
}
if (length $b) {
$w = join ", ",
map {
$_ eq 'R' ?
- "&PL_reentrant_buffer->_${g}_ptr" :
+ "&PL_reentrant_buffer->_${genfunc}_ptr" :
$_ eq 'E' ?
- "&PL_reentrant_buffer->_${g}_errno" :
+ "&PL_reentrant_buffer->_${genfunc}_errno" :
$_ eq 'B' ?
- "PL_reentrant_buffer->_${g}_buffer" :
+ "PL_reentrant_buffer->_${genfunc}_buffer" :
$_ =~ /^[WI]$/ ?
- "PL_reentrant_buffer->_${g}_size" :
+ "PL_reentrant_buffer->_${genfunc}_size" :
$_ eq 'H' ?
- "&PL_reentrant_buffer->_${g}_fptr" :
+ "&PL_reentrant_buffer->_${genfunc}_fptr" :
$_ eq 'D' ?
- "&PL_reentrant_buffer->_${g}_data" :
+ "&PL_reentrant_buffer->_${genfunc}_data" :
$_ eq 'S' ?
- ($f =~ /^readdir/ ?
- "PL_reentrant_buffer->_${g}_struct" :
- "&PL_reentrant_buffer->_${g}_struct" ) :
- $_ eq 'T' && $f eq 'drand48' ?
- "&PL_reentrant_buffer->_${g}_double" :
+ ($func =~ /^readdir\d*$/ ?
+ "PL_reentrant_buffer->_${genfunc}_struct" :
+ $func =~ /^crypt$/ ?
+ "PL_reentrant_buffer->_${genfunc}_struct_buffer" :
+ "&PL_reentrant_buffer->_${genfunc}_struct") :
+ $_ eq 'T' && $func eq 'drand48' ?
+ "&PL_reentrant_buffer->_${genfunc}_double" :
+ $_ =~ /^[ilt]$/ && $func eq 'random' ?
+ "&PL_reentrant_buffer->_random_retval" :
$_
} split '', $b;
$w = ", $w" if length $v;
}
- my $call = "${f}_r($v$w)";
- $call = "((errno = $call))" if $r eq 'I';
+ my $call = "${func}_r($v$w)";
push @wrap, <<EOF;
-# if !defined($f) && ${F}_R_PROTO == REENTRANT_PROTO_$p
+# if !defined($func) && ${FUNC}_R_PROTO == REENTRANT_PROTO_$p
EOF
if ($r eq 'V' || $r eq 'B') {
push @wrap, <<EOF;
-# define $f($v) $call
+# define $func($v) $call
EOF
} else {
- push @wrap, <<EOF;
-# define $f($v) ($call$test ? $true : $false)
+ if ($func =~ /^get/) {
+ my $rv = $v ? ", $v" : "";
+ if ($r eq 'I') {
+ push @wrap, <<EOF;
+# define $func($v) ((PL_reentrant_retint = $call)$test ? $true : (((PL_reentrant_retint == ERANGE) || (errno == ERANGE)) ? Perl_reentrant_retry("$func"$rv) : 0))
+EOF
+ } else {
+ push @wrap, <<EOF;
+# define $func($v) ($call$test ? $true : ((errno == ERANGE) ? Perl_reentrant_retry("$func"$rv) : 0))
EOF
+ }
+ } else {
+ push @wrap, <<EOF;
+# define $func($v) ($call$test ? $true : 0)
+EOF
+ }
}
push @wrap, <<EOF;
# endif
@define
typedef struct {
@struct
+ int dummy; /* cannot have empty structs */
} REENTR;
/* The wrappers. */
@wrap
+
#endif /* USE_REENTRANT_API */
#endif
close(H);
+# Prepare to write the reentr.c.
+
die "reentr.c: $!" unless open(C, ">reentr.c");
select C;
print <<EOF;
/*
* reentr.c
*
- * Copyright (c) 1997-2002, Larry Wall
+ * Copyright (C) 2002, 2003, 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.
*
* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
- * This file is built by reentrl.pl from data in reentr.pl.
+ * This file is built by reentr.pl from data in reentr.pl.
*
* "Saruman," I said, standing away from him, "only one hand at a time can
* wield the One, and you know that well, so do not trouble to say we!"
*
+ * This file contains a collection of automatically created wrappers
+ * (created by running reentr.pl) for reentrant (thread-safe) versions of
+ * various library calls, such as getpwent_r. The wrapping is done so
+ * that other files like pp_sys.c calling those library functions need not
+ * care about the differences between various platforms' idiosyncrasies
+ * regarding these reentrant interfaces.
*/
#include "EXTERN.h"
void
Perl_reentrant_size(pTHX) {
#ifdef USE_REENTRANT_API
+#define REENTRANTSMALLSIZE 256 /* Make something up. */
+#define REENTRANTUSUALSIZE 4096 /* Make something up. */
@size
#endif /* USE_REENTRANT_API */
}
#endif /* USE_REENTRANT_API */
}
+void*
+Perl_reentrant_retry(const char *f, ...)
+{
+ dTHX;
+ void *retptr = NULL;
+#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;
+# endif
+# if defined(USE_SERVENT_BUFFER)
+ void *p1;
+# endif
+# if defined(USE_HOSTENT_BUFFER)
+ size_t asize;
+# endif
+# 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
+ case OP_GHBYADDR:
+ case OP_GHBYNAME:
+ case OP_GHOSTENT:
+ {
+#ifdef PERL_REENTRANT_MAXSIZE
+ if (PL_reentrant_buffer->_hostent_size <=
+ PERL_REENTRANT_MAXSIZE / 2)
+#endif
+ {
+ PL_reentrant_buffer->_hostent_size *= 2;
+ Renew(PL_reentrant_buffer->_hostent_buffer,
+ PL_reentrant_buffer->_hostent_size, char);
+ switch (PL_op->op_type) {
+ case OP_GHBYADDR:
+ p0 = va_arg(ap, void *);
+ asize = va_arg(ap, size_t);
+ anint = va_arg(ap, int);
+ retptr = gethostbyaddr(p0, asize, anint); break;
+ case OP_GHBYNAME:
+ p0 = va_arg(ap, void *);
+ retptr = gethostbyname(p0); break;
+ case OP_GHOSTENT:
+ retptr = gethostent(); break;
+ default:
+ SETERRNO(ERANGE, LIB_INVARG);
+ break;
+ }
+ }
+ }
+ break;
+#endif
+#ifdef USE_GRENT_BUFFER
+ case OP_GGRNAM:
+ case OP_GGRGID:
+ case OP_GGRENT:
+ {
+#ifdef PERL_REENTRANT_MAXSIZE
+ if (PL_reentrant_buffer->_grent_size <=
+ PERL_REENTRANT_MAXSIZE / 2)
+#endif
+ {
+ Gid_t gid;
+ PL_reentrant_buffer->_grent_size *= 2;
+ Renew(PL_reentrant_buffer->_grent_buffer,
+ PL_reentrant_buffer->_grent_size, char);
+ switch (PL_op->op_type) {
+ case OP_GGRNAM:
+ p0 = va_arg(ap, void *);
+ retptr = getgrnam(p0); break;
+ case OP_GGRGID:
+#if Gid_t_size < INTSIZE
+ gid = (Gid_t)va_arg(ap, int);
+#else
+ gid = va_arg(ap, Gid_t);
+#endif
+ retptr = getgrgid(gid); break;
+ case OP_GGRENT:
+ retptr = getgrent(); break;
+ default:
+ SETERRNO(ERANGE, LIB_INVARG);
+ break;
+ }
+ }
+ }
+ break;
+#endif
+#ifdef USE_NETENT_BUFFER
+ case OP_GNBYADDR:
+ case OP_GNBYNAME:
+ case OP_GNETENT:
+ {
+#ifdef PERL_REENTRANT_MAXSIZE
+ if (PL_reentrant_buffer->_netent_size <=
+ PERL_REENTRANT_MAXSIZE / 2)
+#endif
+ {
+ Netdb_net_t net;
+ PL_reentrant_buffer->_netent_size *= 2;
+ Renew(PL_reentrant_buffer->_netent_buffer,
+ PL_reentrant_buffer->_netent_size, char);
+ switch (PL_op->op_type) {
+ case OP_GNBYADDR:
+ net = va_arg(ap, Netdb_net_t);
+ anint = va_arg(ap, int);
+ retptr = getnetbyaddr(net, anint); break;
+ case OP_GNBYNAME:
+ p0 = va_arg(ap, void *);
+ retptr = getnetbyname(p0); break;
+ case OP_GNETENT:
+ retptr = getnetent(); break;
+ default:
+ SETERRNO(ERANGE, LIB_INVARG);
+ break;
+ }
+ }
+ }
+ break;
+#endif
+#ifdef USE_PWENT_BUFFER
+ case OP_GPWNAM:
+ case OP_GPWUID:
+ case OP_GPWENT:
+ {
+#ifdef PERL_REENTRANT_MAXSIZE
+ if (PL_reentrant_buffer->_pwent_size <=
+ PERL_REENTRANT_MAXSIZE / 2)
+#endif
+ {
+ Uid_t uid;
+ PL_reentrant_buffer->_pwent_size *= 2;
+ Renew(PL_reentrant_buffer->_pwent_buffer,
+ PL_reentrant_buffer->_pwent_size, char);
+ switch (PL_op->op_type) {
+ case OP_GPWNAM:
+ p0 = va_arg(ap, void *);
+ retptr = getpwnam(p0); break;
+ case OP_GPWUID:
+#if Uid_t_size < INTSIZE
+ uid = (Uid_t)va_arg(ap, int);
+#else
+ uid = va_arg(ap, Uid_t);
+#endif
+ retptr = getpwuid(uid); break;
+ case OP_GPWENT:
+ retptr = getpwent(); break;
+ default:
+ SETERRNO(ERANGE, LIB_INVARG);
+ break;
+ }
+ }
+ }
+ break;
+#endif
+#ifdef USE_PROTOENT_BUFFER
+ case OP_GPBYNAME:
+ case OP_GPBYNUMBER:
+ case OP_GPROTOENT:
+ {
+#ifdef PERL_REENTRANT_MAXSIZE
+ if (PL_reentrant_buffer->_protoent_size <=
+ PERL_REENTRANT_MAXSIZE / 2)
+#endif
+ {
+ PL_reentrant_buffer->_protoent_size *= 2;
+ Renew(PL_reentrant_buffer->_protoent_buffer,
+ PL_reentrant_buffer->_protoent_size, char);
+ switch (PL_op->op_type) {
+ case OP_GPBYNAME:
+ p0 = va_arg(ap, void *);
+ retptr = getprotobyname(p0); break;
+ case OP_GPBYNUMBER:
+ anint = va_arg(ap, int);
+ retptr = getprotobynumber(anint); break;
+ case OP_GPROTOENT:
+ retptr = getprotoent(); break;
+ default:
+ SETERRNO(ERANGE, LIB_INVARG);
+ break;
+ }
+ }
+ }
+ break;
+#endif
+#ifdef USE_SERVENT_BUFFER
+ case OP_GSBYNAME:
+ case OP_GSBYPORT:
+ case OP_GSERVENT:
+ {
+#ifdef PERL_REENTRANT_MAXSIZE
+ if (PL_reentrant_buffer->_servent_size <=
+ PERL_REENTRANT_MAXSIZE / 2)
+#endif
+ {
+ PL_reentrant_buffer->_servent_size *= 2;
+ Renew(PL_reentrant_buffer->_servent_buffer,
+ PL_reentrant_buffer->_servent_size, char);
+ switch (PL_op->op_type) {
+ case OP_GSBYNAME:
+ p0 = va_arg(ap, void *);
+ p1 = va_arg(ap, void *);
+ retptr = getservbyname(p0, p1); break;
+ case OP_GSBYPORT:
+ anint = va_arg(ap, int);
+ p0 = va_arg(ap, void *);
+ retptr = getservbyport(anint, p0); break;
+ case OP_GSERVENT:
+ retptr = getservent(); break;
+ default:
+ SETERRNO(ERANGE, LIB_INVARG);
+ break;
+ }
+ }
+ }
+ break;
+#endif
+ default:
+ /* Not known how to retry, so just fail. */
+ break;
+ }
+
+ va_end(ap);
+#endif
+ return retptr;
+}
+
EOF
__DATA__
asctime S |time |const struct tm|B_SB|B_SBI|I_SB|I_SBI
-crypt CC |crypt |struct crypt_data|B_CCS
+crypt CC |crypt |struct crypt_data|B_CCS|B_CCD|D=CRYPTD*
ctermid B |stdio | |B_B
ctime S |time |const time_t |B_SB|B_SBI|I_SB|I_SBI
drand48 |stdlib |struct drand48_data |I_ST|T=double*
endgrent |grp | |I_H|V_H
-endhostent |netdb |struct hostent_data |I_S|V_S
-endnetent |netdb |struct netent_data |I_S|V_S
-endprotoent |netdb |struct protoent_data |I_S|V_S
+endhostent |netdb | |I_D|V_D|D=struct hostent_data*
+endnetent |netdb | |I_D|V_D|D=struct netent_data*
+endprotoent |netdb | |I_D|V_D|D=struct protoent_data*
endpwent |pwd | |I_H|V_H
-endservent |netdb |struct servent_data |I_S|V_S
+endservent |netdb | |I_D|V_D|D=struct servent_data*
getgrent |grp |struct group |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
getgrgid T |grp |struct group |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=gid_t
getgrnam C |grp |struct group |I_CSBWR|I_CSBIR|S_CBI|I_CSBI|S_CSBI
-gethostbyaddr CWI |netdb |struct hostent |I_CWISBWRE|S_CWISBWIE|S_CWISBIE|S_TWISBIE|S_CIISBIE|S_CSBIE|S_TSBIE|I_CWISD|I_CIISD|I_CII|D=struct hostent_data*|T=const void*
+gethostbyaddr CWI |netdb |struct hostent |I_CWISBWRE|S_CWISBWIE|S_CWISBIE|S_TWISBIE|S_CIISBIE|S_CSBIE|S_TSBIE|I_CWISD|I_CIISD|I_CII|I_TsISBWRE|D=struct hostent_data*|T=const void*|s=socklen_t
gethostbyname C |netdb |struct hostent |I_CSBWRE|S_CSBIE|I_CSD|D=struct hostent_data*
gethostent |netdb |struct hostent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct hostent_data*
getlogin |unistd | |I_BW|I_BI|B_BW|B_BI
-getnetbyaddr LI |netdb |struct netent |I_UISBWRE|I_LISBI|S_TISBI|S_LISBI|I_TISD|I_LISD|I_IISD|D=struct netent_data*|T=in_addr_t|U=unsigned long
+getnetbyaddr LI |netdb |struct netent |I_UISBWRE|I_LISBI|S_TISBI|S_LISBI|I_TISD|I_LISD|I_IISD|I_uISBWRE|D=struct netent_data*|T=in_addr_t|U=unsigned long|u=uint32_t
getnetbyname C |netdb |struct netent |I_CSBWRE|I_CSBI|S_CSBI|I_CSD|D=struct netent_data*
getnetent |netdb |struct netent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct netent_data*
getprotobyname C|netdb |struct protoent|I_CSBWR|S_CSBI|I_CSD|D=struct protoent_data*
getspnam C |shadow |struct spwd |I_CSBWR|S_CSBI
gmtime T |time |struct tm |S_TS|I_TS|T=const time_t*
localtime T |time |struct tm |S_TS|I_TS|T=const time_t*
-random |stdlib |struct random_data|I_TS|T=int*
+random |stdlib |struct random_data|I_iS|I_lS|I_St|i=int*|l=long*|t=int32_t*
readdir T |dirent |struct dirent |I_TSR|I_TS|T=DIR*
readdir64 T |dirent |struct dirent64|I_TSR|I_TS|T=DIR*
setgrent |grp | |I_H|V_H
https://perl5.git.perl.org / perl5.git / blobdiff