From: Alexey Gladkov <gladkov.alexey@gmail.com>
To: make-initrd@lists.altlinux.org
Subject: Re: [make-initrd] [PATCH 1/3] Reimplement ueventd
Date: Fri, 5 May 2023 19:24:31 +0200
Message-ID: <ZFU7z/qcqzokD8tE@example.org> (raw)
In-Reply-To: <6868e911-b66b-431c-1164-f45158396dfa@gmail.com>
On Fri, May 05, 2023 at 08:21:25AM +0300, Leonid Krivoshein wrote:
>
> On 5/4/23 16:42, Alexey Gladkov wrote:
> > [...]
> > diff --git a/datasrc/ueventd/queue-processor.c b/datasrc/ueventd/queue-processor.c
> > new file mode 100644
> > index 00000000..ab5e03e4
> > --- /dev/null
> > +++ b/datasrc/ueventd/queue-processor.c
> > @@ -0,0 +1,116 @@
> > +/* SPDX-License-Identifier: GPL-2.0-or-later */
> > +
> > +#include <sys/types.h>
> > +#include <sys/stat.h>
> > +#include <sys/wait.h>
> > +
> > +#include <stdlib.h>
> > +#include <stdio.h>
> > +#include <string.h>
> > +#include <signal.h>
> > +#include <dirent.h>
> > +#include <fcntl.h>
> > +#include <errno.h>
> > +
> > +#include "ueventd.h"
> > +
> > [...]
> > +void move_files(char *srcdir, char *dstdir)
> > +{
> > + struct dirent *ent;
> > + int srcfd, dstfd;
> > +
> > + if ((srcfd = open(srcdir, O_RDONLY | O_CLOEXEC)) < 0)
> > + fatal("open: %s: %m", srcdir);
> > +
> > + errno = 0;
> > + if ((dstfd = open(dstdir, O_RDONLY | O_CLOEXEC)) < 0) {
> > + if (errno == ENOENT) {
>
> open() тоже прерываемый примитив, но его ты оборачивать не стал. Так
> задумано?
Нет, это я пропустил просто.
> > + if (mkdir(dstdir, 0755) < 0)
> > + fatal("mkdir: %s: %m", dstdir);
> > + dstfd = open(dstdir, O_RDONLY | O_CLOEXEC);
> > + }
> > + if (dstfd < 0)
> > + fatal("open: %s: %m", dstdir);
> > + }
> > +
> > + DIR *d = fdopendir(srcfd);
> > + if (!d)
> > + fatal("fdopendir: %m");
> > +
> > + while ((ent = xreaddir(d, srcdir)) != NULL) {
> > + if (ent->d_name[0] != '.' && ent->d_type == DT_REG &&
> > + renameat(srcfd, ent->d_name, dstfd, ent->d_name) < 0)
> > + fatal("rename `%s/%s' -> `%s/%s': %m", srcdir, ent->d_name, dstdir, ent->d_name);
> > + }
> > +
> > + closedir(d);
> > + close(dstfd);
>
> Возможно тут и нет ошибки, но srcfd будет закрыт только при завершении
> программы, а что насчёт повторного вызова функции с такой же srcdir или
> такое невозможно?
Нет, srcfd будет закрыт в closedir.
https://git.altlinux.org/gears/g/glibc.git?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/closedir.c#l30
> > +}
> > [...]
>
>
> --
> WBR, Leonid Krivoshein.
> _______________________________________________
> Make-initrd mailing list
> Make-initrd@lists.altlinux.org
> https://lists.altlinux.org/mailman/listinfo/make-initrd
--
Rgrds, legion
next prev parent reply other threads:[~2023-05-05 17:24 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-04 13:42 [make-initrd] [PATCH 0/3] " Alexey Gladkov
2023-05-04 13:42 ` [make-initrd] [PATCH 1/3] " Alexey Gladkov
2023-05-05 3:08 ` Leonid Krivoshein
2023-05-05 17:02 ` Alexey Gladkov
2023-05-05 4:03 ` Leonid Krivoshein
2023-05-05 17:16 ` Alexey Gladkov
2023-05-05 5:21 ` Leonid Krivoshein
2023-05-05 17:24 ` Alexey Gladkov [this message]
2023-05-14 20:12 ` Leonid Krivoshein
2023-05-14 20:45 ` Alexey Gladkov
2023-05-14 20:57 ` Leonid Krivoshein
2023-05-15 8:52 ` Alexey Gladkov
2023-05-14 23:08 ` Leonid Krivoshein
2023-05-15 9:05 ` Alexey Gladkov
2023-05-15 0:47 ` Leonid Krivoshein
2023-05-15 9:12 ` Alexey Gladkov
2023-05-15 4:38 ` Leonid Krivoshein
2023-05-15 10:43 ` Alexey Gladkov
2023-05-18 6:39 ` Leonid Krivoshein
2023-05-18 7:05 ` Alexey Gladkov
2023-05-20 9:00 ` Leonid Krivoshein
2023-05-20 13:18 ` Alexey Gladkov
2023-05-20 15:17 ` Vladimir D. Seleznev
2023-05-20 17:23 ` Leonid Krivoshein
2023-05-20 18:51 ` Alexey Gladkov
2023-05-21 8:53 ` [make-initrd] [PATCH] ueventd: Don't use a epoll timeout when it's not needed Alexey Gladkov
2023-05-22 4:46 ` Leonid Krivoshein
2023-05-22 7:54 ` Alexey Gladkov
2023-05-22 9:19 ` Alexey Gladkov
2023-05-22 7:57 ` [make-initrd] [PATCH 1/2] ueventd: Fix memory leak Alexey Gladkov
2023-05-22 7:57 ` [make-initrd] [PATCH 2/2] ueventd: Change interface rd_asprintf_or_die Alexey Gladkov
2023-05-22 9:36 ` [make-initrd] [PATCH v2] " Alexey Gladkov
2023-05-20 16:37 ` [make-initrd] [PATCH 1/3] ueventd: Simplify call of the queue handler Alexey Gladkov
2023-05-20 16:37 ` [make-initrd] [PATCH 2/3] ueventd: Rename fd_list to fd_handler_list Alexey Gladkov
2023-05-20 16:37 ` [make-initrd] [PATCH 3/3] ueventd: Drop obsolete declarations Alexey Gladkov
2023-05-04 13:42 ` [make-initrd] [PATCH 2/3] Replace polld by uevent queue Alexey Gladkov
2023-05-04 13:42 ` [make-initrd] [PATCH 3/3] feature/kickstart: Reset rootdelay timer after kickstart Alexey Gladkov
2023-05-06 19:45 ` [make-initrd] ueventd: Add a prefix to the logging functions to avoid name collisions Alexey Gladkov
2023-05-06 19:45 ` [make-initrd] ueventd: Allow to configure the log destination Alexey Gladkov
2023-05-06 19:45 ` [make-initrd] ueventd: Pass the program name when initializing the logger Alexey Gladkov
2023-05-06 19:45 ` [make-initrd] ueventd: Rewrite logging function to make it more atomic Alexey Gladkov
2023-05-07 12:48 ` [make-initrd] [PATCH 0/3] Reimplement ueventd Alexey Gladkov
2023-05-13 11:50 ` Alexey Gladkov
2023-05-14 20:15 ` Leonid Krivoshein
2023-05-14 20:49 ` Alexey Gladkov
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
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ZFU7z/qcqzokD8tE@example.org \
--to=gladkov.alexey@gmail.com \
--cc=make-initrd@lists.altlinux.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
Make-initrd development discussion
This inbox may be cloned and mirrored by anyone:
git clone --mirror http://lore.altlinux.org/make-initrd/0 make-initrd/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 make-initrd make-initrd/ http://lore.altlinux.org/make-initrd \
make-initrd@lists.altlinux.org make-initrd@lists.altlinux.ru make-initrd@lists.altlinux.com
public-inbox-index make-initrd
Example config snippet for mirrors.
Newsgroup available over NNTP:
nntp://lore.altlinux.org/org.altlinux.lists.make-initrd
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git