From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id p74MUOPb089220 for ; Thu, 4 Aug 2011 17:30:24 -0500 Received: from estes.americas.sgi.com (estes.americas.sgi.com [128.162.236.10]) by relay1.corp.sgi.com (Postfix) with ESMTP id 246D88F8040 for ; Thu, 4 Aug 2011 15:30:21 -0700 (PDT) Received: from augusta (augusta.americas.sgi.com [128.162.233.117]) by estes.americas.sgi.com (Postfix) with ESMTP id 0CBEA7000729 for ; Thu, 4 Aug 2011 17:30:21 -0500 (CDT) From: Bill Kendall Subject: [PATCH v2 0/7] xfsdump: convert to using the POSIX signal API Date: Thu, 4 Aug 2011 17:30:04 -0500 Message-Id: <1312497011-24840-1-git-send-email-wkendall@sgi.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Changes from v1: [v2 1/7] xfsdump: remove conditional OPENMASKED code - No changes since v1. [v2 2/7] xfsdump: process EPIPE instead of catching SIGPIPE - Minor change to ignore SIGPIPE in one location rather than separately for the miniroot and !miniroot cases. [v2 3/7] xfsdump: remove SIGCHLD handling - No changes since v1. [v2 4/7] xfsdump: rework dialog timeout and EINTR reliance - New patch to cleanup signal handling in dialog code. No longer use alarm() and don't depend on a particular thread receiving a signal to break out of a blocking read(). [v2 5/7] xfsdump: rework dialog to use main signal handler - New patch to avoid swapping signal handlers when entering a dialog. [v2 6/7] xfsdump: convert to the POSIX signal API - Was patch #4 from v1 series. Essentially the same, but changes in dlog.c are simpler since the signal handler doesn't get swapped. [v2 7/7] xfsdump: refactor inventory session creation - New patch to make it obvious that the signal mask is properly restored after creating the inventory. This patch series converts xfsdump from using the System V signal API to using the POSIX API. The first 3 patches remove/rework some of the existing signal code, and the final patch does the actual conversion. The primary motivatation for this change is a currently unused section of code in xfsdump's main(): /* sleep until next signal */ sigrelse(SIGINT); sigrelse(SIGHUP); ... sigpause(SIGARLM); The intention is to wake up if any of the signals is received, but this will only wake up if SIGALRM is received. Using sigsuspend() with the appropriate mask fixes the issue. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs