From: Jani Nikula Date: Mon, 22 Sep 2014 09:54:58 +0000 (+0200) Subject: [PATCH 07/11] cli/insert: abstract temporary filename generation X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=0c8f534c00fbf6e9e85b4b0597196a8c4301efac;p=notmuch-archives.git [PATCH 07/11] cli/insert: abstract temporary filename generation --- diff --git a/06/508ecb3bffd6c80c4357803f574869431b809d b/06/508ecb3bffd6c80c4357803f574869431b809d new file mode 100644 index 000000000..c6eaa919a --- /dev/null +++ b/06/508ecb3bffd6c80c4357803f574869431b809d @@ -0,0 +1,141 @@ +Return-Path: +X-Original-To: notmuch@notmuchmail.org +Delivered-To: notmuch@notmuchmail.org +Received: from localhost (localhost [127.0.0.1]) + by olra.theworths.org (Postfix) with ESMTP id DB3D2429E36 + for ; Mon, 22 Sep 2014 02:55:14 -0700 (PDT) +X-Virus-Scanned: Debian amavisd-new at olra.theworths.org +X-Amavis-Alert: BAD HEADER SECTION, Duplicate header field: "References" +X-Spam-Flag: NO +X-Spam-Score: -0.7 +X-Spam-Level: +X-Spam-Status: No, score=-0.7 tagged_above=-999 required=5 + tests=[RCVD_IN_DNSWL_LOW=-0.7] autolearn=disabled +Received: from olra.theworths.org ([127.0.0.1]) + by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024) + with ESMTP id uEJWtHJi3Udy for ; + Mon, 22 Sep 2014 02:55:10 -0700 (PDT) +Received: from mail-wi0-f173.google.com (mail-wi0-f173.google.com + [209.85.212.173]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) + (No client certificate requested) + by olra.theworths.org (Postfix) with ESMTPS id 518F4431FBC + for ; Mon, 22 Sep 2014 02:54:58 -0700 (PDT) +Received: by mail-wi0-f173.google.com with SMTP id r20so2554607wiv.12 + for ; Mon, 22 Sep 2014 02:54:57 -0700 (PDT) +X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; + d=1e100.net; s=20130820; + h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to + :references:in-reply-to:references; + bh=PP97ENfqgEyJSXqIRz7IAcgX8LNKWfS+l2CzJgGJNQI=; + b=D8h6soj/XK8J1rvHgAT7p22/CPm4Zwr5rU0BLB6Z2MW8CkQolYN7rKiyUtX291JNo1 + dvFl4sXbBLZtzXlKqdSbUXreDf+ysf6H7JAmcsLMgKYCTNngURSfNMvr/yJAc8Gir7/E + tLHBXxeuaWgfDeRxkmV7R/CP1GtSVDRNYK4j2uPmWvtW2amt22j6QOIv9NwbPCLqz6lI + tYW9fk/JXaXGQl/e7XN0k7qjU7GmizqORajAGCglmhL4AFEFftSJTQ8Q4bPt5b6XWz2K + /4BiRJ49TBEtrmtplOP2KF+GEI/eOWscxk8wRZZeXL3KC1l0ikNWzdBs6OoV8ouwK+ya + rGfA== +X-Gm-Message-State: + ALoCoQn+pKp9IezDt6vr2QrdOqdE2jTfvvpa4ryJDfQyGdi1gS2izpbKa3kgecFMFbS0VgO738uj +X-Received: by 10.194.24.101 with SMTP id t5mr19092602wjf.76.1411379697162; + Mon, 22 Sep 2014 02:54:57 -0700 (PDT) +Received: from localhost ([2001:4b98:dc0:43:216:3eff:fe1b:25f3]) + by mx.google.com with ESMTPSA id s7sm11686495wjo.48.2014.09.22.02.54.56 + for + (version=TLSv1.1 cipher=RC4-SHA bits=128/128); + Mon, 22 Sep 2014 02:54:56 -0700 (PDT) +From: Jani Nikula +To: notmuch@notmuchmail.org +Subject: [PATCH 07/11] cli/insert: abstract temporary filename generation +Date: Mon, 22 Sep 2014 11:54:58 +0200 +Message-Id: + <550178f85df340b38eb82094a5f823c9673d83dc.1411379395.git.jani@nikula.org> +X-Mailer: git-send-email 1.7.2.5 +In-Reply-To: +References: +In-Reply-To: +References: +X-BeenThere: notmuch@notmuchmail.org +X-Mailman-Version: 2.1.13 +Precedence: list +List-Id: "Use and development of the notmuch mail system." + +List-Unsubscribe: , + +List-Archive: +List-Post: +List-Help: +List-Subscribe: , + +X-List-Received-Date: Mon, 22 Sep 2014 09:55:15 -0000 + +This will clean up the usage. There's the slight functional change of +potentially ending up doing extra gethostname and getpid calls, but +this is neglible. +--- + notmuch-insert.c | 39 +++++++++++++++++++++++++++------------ + 1 files changed, 27 insertions(+), 12 deletions(-) + +diff --git a/notmuch-insert.c b/notmuch-insert.c +index cdeeb41..a1d564c 100644 +--- a/notmuch-insert.c ++++ b/notmuch-insert.c +@@ -179,6 +179,31 @@ maildir_create_folder (const void *ctx, const char *maildir) + return TRUE; + } + ++/* ++ * Generate a temporary file basename, no path, do not create an ++ * actual file. Return the basename, or NULL on errors. ++ */ ++static char * ++tempfilename (const void *ctx) ++{ ++ char *filename; ++ char hostname[256]; ++ struct timeval tv; ++ pid_t pid; ++ ++ /* We follow the Dovecot file name generation algorithm. */ ++ pid = getpid (); ++ safe_gethostname (hostname, sizeof (hostname)); ++ gettimeofday (&tv, NULL); ++ ++ filename = talloc_asprintf (ctx, "%ld.M%ldP%d.%s", ++ tv.tv_sec, tv.tv_usec, pid, hostname); ++ if (! filename) ++ fprintf (stderr, "Error: %s\n", strerror (ENOMEM)); ++ ++ return filename; ++} ++ + /* Open a unique file in the 'tmp' sub-directory of dir. + * Returns the file descriptor on success, or -1 on failure. + * On success, file paths for the message in the 'tmp' and 'new' +@@ -188,23 +213,13 @@ static int + maildir_open_tmp_file (void *ctx, const char *dir, + char **tmppath, char **newpath, char **newdir) + { +- pid_t pid; +- char hostname[256]; +- struct timeval tv; + char *filename; + int fd = -1; + +- /* We follow the Dovecot file name generation algorithm. */ +- pid = getpid (); +- safe_gethostname (hostname, sizeof (hostname)); + do { +- gettimeofday (&tv, NULL); +- filename = talloc_asprintf (ctx, "%ld.M%ldP%d.%s", +- tv.tv_sec, tv.tv_usec, pid, hostname); +- if (! filename) { +- fprintf (stderr, "Out of memory\n"); ++ filename = tempfilename (ctx); ++ if (! filename) + return -1; +- } + + *tmppath = talloc_asprintf (ctx, "%s/tmp/%s", dir, filename); + if (! *tmppath) { +-- +1.7.2.5 +