From: Eric Wong <normalperson@yhbt.net>
To: clogger@librelist.org
Subject: [PATCH] attempt to support broken/crazy systems
Date: Thu, 13 Jan 2011 00:37:08 +0000 [thread overview]
Message-ID: <20110113003708.GA13256@dcvr.yhbt.net> (raw)
In-Reply-To: <20110113003708.GA13256@dcvr.yhbt.net>
I've just pushed this out to git://git.bogomips.org/clogger.git
If you're using a crazy, non-Free OS[1] favored by many Rubyists,
please tell me if it works or not with this patch.
[1] - I don't and will never endorse non-Free Software nor any
for-profit organizations in my Free Software works.
>From 6cc7e96f972d9a648bef9d49ca245282250a5502 Mon Sep 17 00:00:00 2001
From: Eric Wong <normalperson@yhbt.net>
Date: Wed, 12 Jan 2011 16:24:23 -0800
Subject: [PATCH] attempt to support broken/crazy systems
clock_gettime() is not available on some systems and/or
CLOCK_MONOTONIC. This is totally broken considering the
POSIX standard was 10 years ago, now.
Nothing in gnulib, either, wtf?!
http://www.gnu.org/software/gnulib/manual/html_node/clock_005fgettime.html
---
ext/clogger_ext/broken_system_compat.h | 27 +++++++++++++++++++++++++++
ext/clogger_ext/clogger.c | 1 +
ext/clogger_ext/extconf.rb | 1 +
3 files changed, 29 insertions(+), 0 deletions(-)
create mode 100644 ext/clogger_ext/broken_system_compat.h
diff --git a/ext/clogger_ext/broken_system_compat.h b/ext/clogger_ext/broken_system_compat.h
new file mode 100644
index 0000000..f58307e
--- /dev/null
+++ b/ext/clogger_ext/broken_system_compat.h
@@ -0,0 +1,27 @@
+/*
+ * this header includes functions to support broken systems
+ * without clock_gettime() or CLOCK_MONOTONIC
+ */
+
+#ifndef HAVE_CLOCK_GETTIME
+# ifndef CLOCK_REALTIME
+# define CLOCK_REALTIME 0 /* whatever */
+# endif
+static int fake_clock_gettime(int clk_id, struct timespec *res)
+{
+ struct timeval tv;
+ int r = gettimeofday(&tv, NULL);
+
+ assert(0 == r && "gettimeofday() broke!?");
+ res->tv_sec = tv.tv_sec;
+ res->tv_nsec = tv.tv_usec * 1000;
+
+ return r;
+}
+# define clock_gettime fake_clock_gettime
+#endif /* broken systems w/o clock_gettime() */
+
+/* UGH */
+#ifndef _POSIX_MONOTONIC_CLOCK
+# define CLOCK_MONOTONIC CLOCK_REALTIME
+#endif
diff --git a/ext/clogger_ext/clogger.c b/ext/clogger_ext/clogger.c
index 9703f69..7e01e6d 100644
--- a/ext/clogger_ext/clogger.c
+++ b/ext/clogger_ext/clogger.c
@@ -16,6 +16,7 @@
#define _POSIX_C_SOURCE 200112L
#include <time.h>
#include "ruby_1_9_compat.h"
+#include "broken_system_compat.h"
static void clock_diff(struct timespec *a, const struct timespec *b)
{
diff --git a/ext/clogger_ext/extconf.rb b/ext/clogger_ext/extconf.rb
index 60c46a7..d87d8c2 100644
--- a/ext/clogger_ext/extconf.rb
+++ b/ext/clogger_ext/extconf.rb
@@ -17,6 +17,7 @@ begin
$CPPFLAGS += '-D_POSIX_SOURCE_200112L'
have_func('CLOCK_MONOTONIC', 'time.h')
end
+ have_func('clock_gettime', 'time.h')
have_func('localtime_r', 'time.h') or raise "localtime_r needed"
have_func('gmtime_r', 'time.h') or raise "gmtime_r needed"
have_func('rb_str_set_len', 'ruby.h')
--
Eric Wong
next parent reply other threads:[~2011-01-13 0:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-13 0:37 Eric Wong [this message]
2011-01-14 9:14 ` [PATCH] attempt to support broken/crazy systems Eric Wong
2011-01-14 17:31 ` [PATCH] another try to fix systems without CLOCK_MONOTONIC Eric Wong
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://yhbt.net/clogger/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20110113003708.GA13256@dcvr.yhbt.net \
--to=normalperson@yhbt.net \
--cc=clogger@librelist.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://yhbt.net/clogger.git/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).