From: mwilck@suse.com
To: Keith Busch <kbusch@kernel.org>, linux-nvme@lists.infradead.org
Cc: Hannes Reinecke <hare@suse.de>,
Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>,
Martin Wilck <mwilck@suse.com>
Subject: [PATCH 12/35] monitor: add helpers for __attribute__((cleanup))
Date: Tue, 26 Jan 2021 21:33:01 +0100 [thread overview]
Message-ID: <20210126203324.23610-13-mwilck@suse.com> (raw)
In-Reply-To: <20210126203324.23610-1-mwilck@suse.com>
From: Martin Wilck <mwilck@suse.com>
__attribute__((cleanup)) is very helpful but ugly. Try to avoid
defining lots of cleanup functions with these macros.
Usage: to declare an auto-cleanup variable of type (some_type *),
write
CLEANUP_FUNC(some_type)
void some_func(void)
{
CLEANUP(some_type, varname) = NULL;
...
}
Signed-off-by: Martin Wilck <mwilck@suse.com>
---
common.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/common.h b/common.h
index 1c214a4..9386ec5 100644
--- a/common.h
+++ b/common.h
@@ -12,4 +12,16 @@
#define __stringify_1(x...) #x
#define __stringify(x...) __stringify_1(x)
+#define CLEANUP_FUNC(type) \
+static void __cleanup_ ## type ##_p(type ** __p) \
+{ \
+ if (*__p) { \
+ free(*__p); \
+ *__p = NULL; \
+ } \
+}
+
+#define CLEANUP(__t, __v) \
+ __t *__v __attribute__((cleanup(__cleanup_ ## __t ## _p)))
+
#endif
--
2.29.2
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next prev parent reply other threads:[~2021-01-26 20:35 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-26 20:32 [PATCH 00/35] RFC: add "nvme monitor" subcommand mwilck
2021-01-26 20:32 ` [PATCH 01/35] nvme-monitor: add new stub mwilck
2021-01-26 20:32 ` [PATCH 02/35] monitor: create udev socket mwilck
2021-01-26 20:32 ` [PATCH 03/35] monitor: initialize signal handling mwilck
2021-01-26 20:32 ` [PATCH 04/35] monitor: add main loop for uevent monitoring mwilck
2021-01-26 20:32 ` [PATCH 05/35] monitor: add uevent filters mwilck
2021-02-04 6:58 ` Hannes Reinecke
2021-01-26 20:32 ` [PATCH 06/35] monitor: Create a log() macro mwilck
2021-02-04 7:01 ` Hannes Reinecke
2021-02-04 9:14 ` Martin Wilck
2021-01-26 20:32 ` [PATCH 07/35] fabrics: use " mwilck
2021-02-04 7:02 ` Hannes Reinecke
2021-01-26 20:32 ` [PATCH 08/35] monitor: add command line options to control logging mwilck
2021-02-04 7:04 ` Hannes Reinecke
2021-02-04 9:18 ` Martin Wilck
2021-01-26 20:32 ` [PATCH 09/35] nvme_get_ctrl_attr(): constify "path" argument mwilck
2021-02-04 7:05 ` Hannes Reinecke
2021-01-26 20:32 ` [PATCH 10/35] fabrics: export do_discover(), build_options() and config mwilck
2021-02-04 7:09 ` Hannes Reinecke
2021-02-04 9:21 ` Martin Wilck
2021-01-26 20:33 ` [PATCH 11/35] monitor: add option -A / --autoconnect mwilck
2021-01-29 18:59 ` Sagi Grimberg
2021-01-29 19:33 ` Martin Wilck
2021-01-29 20:09 ` Sagi Grimberg
2021-02-04 7:13 ` Hannes Reinecke
2021-01-26 20:33 ` mwilck [this message]
2021-02-04 7:14 ` [PATCH 12/35] monitor: add helpers for __attribute__((cleanup)) Hannes Reinecke
2021-01-26 20:33 ` [PATCH 13/35] monitor: disable nvmf-autoconnect udev rules in autoconnect mode mwilck
2021-01-29 1:52 ` Sagi Grimberg
2021-01-29 14:16 ` Martin Wilck
2021-01-29 18:54 ` Sagi Grimberg
2021-02-04 7:16 ` Hannes Reinecke
2021-02-04 9:37 ` Martin Wilck
2021-01-26 20:33 ` [PATCH 14/35] monitor: implement handling of fc_udev_device mwilck
2021-01-26 20:33 ` [PATCH 15/35] monitor: implement handling of nvme AEN events mwilck
2021-01-26 20:33 ` [PATCH 16/35] monitor: reset children's signal disposition mwilck
2021-01-29 1:54 ` Sagi Grimberg
2021-01-29 14:18 ` Martin Wilck
2021-01-26 20:33 ` [PATCH 17/35] monitor: handle SIGCHLD for terminated child processes mwilck
2021-01-29 1:54 ` Sagi Grimberg
2021-01-26 20:33 ` [PATCH 18/35] monitor: add "--persistent/-p" flag mwilck
2021-01-29 19:02 ` Sagi Grimberg
2021-01-29 19:45 ` Martin Wilck
2021-01-26 20:33 ` [PATCH 19/35] fabrics: use "const char *" in struct config mwilck
2021-02-04 7:20 ` Hannes Reinecke
2021-01-26 20:33 ` [PATCH 20/35] fabrics: export arg_str(), parse_conn_arg(), and remove_ctrl() mwilck
2021-01-26 20:33 ` [PATCH 21/35] nvme-cli: add "list.h" mwilck
2021-01-26 20:33 ` [PATCH 22/35] conn-db: add simple connection registry mwilck
2021-01-29 1:59 ` Sagi Grimberg
2021-01-29 14:18 ` Martin Wilck
2021-01-26 20:33 ` [PATCH 23/35] monitor: handle restart of pending discoveries mwilck
2021-01-26 20:33 ` [PATCH 24/35] monitor: monitor_discovery(): try to reuse existing controllers mwilck
2021-01-26 20:33 ` [PATCH 25/35] monitor: read existing connections on startup mwilck
2021-01-26 20:33 ` [PATCH 26/35] monitor: implement starting discovery controllers " mwilck
2021-01-29 21:06 ` Sagi Grimberg
2021-01-29 21:13 ` Martin Wilck
2021-01-29 21:18 ` Sagi Grimberg
2021-01-26 20:33 ` [PATCH 27/35] monitor: implement cleanup of created discovery controllers mwilck
2021-01-26 20:33 ` [PATCH 28/35] monitor: basic handling of add/remove uevents for nvme controllers mwilck
2021-01-26 20:33 ` [PATCH 29/35] monitor: kill running discovery tasks on exit mwilck
2021-01-26 20:33 ` [PATCH 30/35] monitor: add connection property options from connect-all mwilck
2021-01-26 20:33 ` [PATCH 31/35] completions: add completions for nvme monitor mwilck
2021-01-26 20:33 ` [PATCH 32/35] nvmf-autoconnect: add unit file for nvme-monitor.service mwilck
2021-01-29 19:08 ` Sagi Grimberg
2021-01-29 19:50 ` Martin Wilck
2021-01-26 20:33 ` [PATCH 33/35] nvme-connect-all(1): fix documentation for --quiet/-S mwilck
2021-01-29 19:09 ` Sagi Grimberg
2021-01-26 20:33 ` [PATCH 34/35] nvme-monitor(1): add man page for nvme-monitor mwilck
2021-01-26 20:33 ` [PATCH 35/35] monitor: add option --keep/-K mwilck
2021-01-29 19:10 ` Sagi Grimberg
2021-01-29 19:53 ` Martin Wilck
2021-01-29 20:16 ` Sagi Grimberg
2021-01-29 20:30 ` Martin Wilck
2021-01-29 20:45 ` Sagi Grimberg
2021-01-29 20:51 ` Martin Wilck
2021-01-29 20:57 ` Sagi Grimberg
2021-01-29 21:05 ` Martin Wilck
2021-01-29 21:11 ` Sagi Grimberg
2021-01-29 21:15 ` Martin Wilck
2021-01-29 21:21 ` Sagi Grimberg
2021-02-04 7:34 ` Hannes Reinecke
2021-02-04 9:41 ` Martin Wilck
2021-01-29 1:14 ` [PATCH 00/35] RFC: add "nvme monitor" subcommand Sagi Grimberg
2021-01-29 11:18 ` Martin Wilck
2021-01-29 20:08 ` Sagi Grimberg
2021-01-29 20:27 ` Martin Wilck
2021-02-04 7:52 ` Hannes Reinecke
2021-02-22 19:02 ` Enzo Matsumiya
2021-02-22 21:05 ` Martin Wilck
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