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authorLennart Poettering <lennart@poettering.net>2015-11-27 19:13:45 +0100
committerSven Eden <yamakuzure@gmx.net>2017-05-17 15:22:14 +0200
commit4075ef68ba5e6fc39e3616835a3ac4da66599bda (patch)
tree39473a93c022e9b51e2e91b5a82fb1f1290711a7 /src/cgroups-agent
parent38d15c7f653c3f689fca128974fb235b69cfc7f7 (diff)
tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy
GLIB has recently started to officially support the gcc cleanup attribute in its public API, hence let's do the same for our APIs. With this patch we'll define an xyz_unrefp() call for each public xyz_unref() call, to make it easy to use inside a __attribute__((cleanup())) expression. Then, all code is ported over to make use of this. The new calls are also documented in the man pages, with examples how to use them (well, I only added docs where the _unref() call itself already had docs, and the examples, only cover sd_bus_unrefp() and sd_event_unrefp()). This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we tend to call our destructors these days. Note that this defines no public macro that wraps gcc's attribute and makes it easier to use. While I think it's our duty in the library to make our stuff easy to use, I figure it's not our duty to make gcc's own features easy to use on its own. Most likely, client code which wants to make use of this should define its own: #define _cleanup_(function) __attribute__((cleanup(function))) Or similar, to make the gcc feature easier to use. Making this logic public has the benefit that we can remove three header files whose only purpose was to define these functions internally. See #2008.
Diffstat (limited to 'src/cgroups-agent')
-rw-r--r--src/cgroups-agent/cgroups-agent.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cgroups-agent/cgroups-agent.c b/src/cgroups-agent/cgroups-agent.c
index f0371f23e..9d98f8350 100644
--- a/src/cgroups-agent/cgroups-agent.c
+++ b/src/cgroups-agent/cgroups-agent.c
@@ -27,7 +27,7 @@
#include "log.h"
int main(int argc, char *argv[]) {
- _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL;
+ _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r;
if (argc != 2) {