From 25c41ff78d0a65029e410b5478430b1061df1dae Mon Sep 17 00:00:00 2001
From: Eric Wong <e@80x24.org>
Date: Thu, 12 Sep 2019 08:34:21 +0000
Subject: tmpfile: support O_APPEND and use it in DS::tmpio

Might as well share some code for temporary file creation
---
 lib/PublicInbox/DS.pm | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

(limited to 'lib/PublicInbox/DS.pm')

diff --git a/lib/PublicInbox/DS.pm b/lib/PublicInbox/DS.pm
index 1e51dc41..30a9641a 100644
--- a/lib/PublicInbox/DS.pm
+++ b/lib/PublicInbox/DS.pm
@@ -26,6 +26,7 @@ use warnings;
 use 5.010_001;
 
 use PublicInbox::Syscall qw(:epoll);
+use PublicInbox::Tmpfile;
 
 use fields ('sock',              # underlying socket
             'rbuf',              # scalarref, usually undef
@@ -33,7 +34,7 @@ use fields ('sock',              # underlying socket
             'wbuf_off',  # offset into first element of wbuf to start writing at
             );
 
-use Errno  qw(EAGAIN EINVAL EEXIST);
+use Errno  qw(EAGAIN EINVAL);
 use Carp   qw(croak confess carp);
 require File::Spec;
 
@@ -488,15 +489,8 @@ sub drop {
 # PerlIO::mmap or PerlIO::scalar if needed
 sub tmpio ($$$) {
     my ($self, $bref, $off) = @_;
-    my $fh; # open(my $fh, '+>>', undef) doesn't set O_APPEND
-    do {
-        my $fn = File::Spec->tmpdir . '/wbuf-' . rand;
-        if (sysopen($fh, $fn, O_RDWR|O_CREAT|O_EXCL|O_APPEND, 0600)) { # likely
-            unlink($fn) or return drop($self, "unlink($fn) $!");
-        } elsif ($! != EEXIST) { # EMFILE/ENFILE/ENOSPC/ENOMEM
-            return drop($self, "open: $!");
-        }
-    } until (defined $fh);
+    my $fh = tmpfile('wbuf', $self->{sock}, 1) or
+        return drop($self, "tmpfile $!");
     $fh->autoflush(1);
     my $len = bytes::length($$bref) - $off;
     $fh->write($$bref, $len, $off) or return drop($self, "write ($len): $!");
-- 
cgit v1.2.3-24-ge0c7