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40 Commits

Author SHA1 Message Date
Milan Broz
cbedb99e4c Fix some compile warnings on RHEL5 
- returned char not needed to be explicitly const
- warn if pipe() fails in clvmd (more fixes here needed for error paths...)
- assign (and ignore) read() output in drain buffer
 2011-03-01 20:17:56 +00:00
Zdenek Kabelac
0a9b444a60 Remove dead assignment of 'ret' value 
Variable 'ret' assigned from _do_event() was actually not used and replaced with next
assignment without any read of the returned value.

Code is reformated - so the error path is put in the if() branch and normal
code is put after the 'if' together with FIXME comment.


FIXME lowprio: logging needs to be fixed in this code,
 - multiple log_errors are printed, stacks are missing...
 2011-01-06 10:45:41 +00:00
Zdenek Kabelac
4b1232984b Remove unneeded stack prints after log_error 2011-01-06 09:45:05 +00:00
Zdenek Kabelac
4388a09b0f Detect errors from dm_task_set calls 
Check for errors in dm_task_set calls.
Use  goto_bad macro with stack trace.
Replace  label  failed: with bad:.
 2010-12-22 15:28:44 +00:00
Zdenek Kabelac
d80f8cf41b Fix clang warning for ntohl(*((uint32_t *)buf)) 
We cast (char*) to (uint32_t*) that changes alignment requierements.
For our case the code has been correct as alloca() returns properly
aligned buffer, however this patch make it cleaner and more readable
and avoids warning generation.
 2010-10-25 11:57:06 +00:00
Petr Rockai
d95a85ca36 Implement dmeventd -R, allowing dmeventd to be restarted without losing 
monitoring state.
 2010-10-20 15:12:12 +00:00
Alasdair Kergon
d1e8046f56 Various small cleanups and fixes related to monitoring. 2010-08-16 22:54:35 +00:00
Alasdair Kergon
470c18847d Remove superfluous NULL pointer tests before dm_free from dmeventd. 2010-08-16 18:19:46 +00:00
Peter Rajnoha
bda3982016 Use UUIDs instead of names while processing event handlers. 
Internally, we used DM names instead of UUIDs while processing event
handlers. This caused problems while trying to vgrename a VG with active LVs
where the names are being changed and so the devices were not found then.
The patch also contains a little bit of refactoring, moving "build_dlid" code
found in dev_manager.c to "build_dm_uuid", now in lvm-string.c (so we have
build_dm_uuid and build_dm_name at one place).
 2010-04-14 13:01:38 +00:00
Zdenek Kabelac
08ebb57c9b Move declaration of struct dm_info info to declaration block. 2010-03-24 11:36:48 +00:00
Zdenek Kabelac
5a4eeb69c4 Cleanup gcc warning: null argument where non-null required (arg.2) 
As the const declaration of execvp is a bit weird, using local
dmeventdpath string.
 2010-01-14 10:11:26 +00:00
Mikulas Patocka
3395d72881 Change exit() to _exit() in the child process. exit flushes stdio file buffers, 
_exit doesn't. If there were some open files, an error in exec and subsequent
exit() would cause the buffers to be flushed twice.

Example:

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>

int main()
{
	printf("buu");
	if (!fork()) {
		execl("/bin/true-not-exists", "/bin/true", NULL);
		exit(1);
	}
	wait(NULL);
	return 0;
}

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com

---
 daemons/dmeventd/libdevmapper-event.c |    2 +-
 lib/misc/lvm-exec.c                   |    2 +-
 test/harness.c                        |    3 ++-
 tools/dmsetup.c                       |    2 +-
 4 files changed, 5 insertions(+), 4 deletions(-)
 2009-07-13 21:26:41 +00:00
Milan Broz
01fb9ca9a0 Do not fork daemon when dmeventd cannot be found. 2009-06-15 12:29:41 +00:00
Alasdair Kergon
d4b9af444c more tweaks for dmeventd - not finished yet 2008-11-03 23:01:21 +00:00
Petr Rockai
cd1a7e80c0 Fix a possible double-free in libdevmapper-event. 2007-11-27 12:26:06 +00:00
Alasdair Kergon
147d5faccf Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-21 16:26:07 +00:00
Alasdair Kergon
27c7135097 Use NULL not 0. 
Remove worthless comment.
 2007-08-05 00:13:02 +00:00
Petr Rockai
674cfe8071 Fix a possible segfault in libdevmapper-event. Thanks to Brian J. Wood 
for noticing this.
 2007-08-02 22:31:59 +00:00
Milan Broz
0329281b49 Fix libdevmapper-event memory leaks 2007-04-19 19:10:19 +00:00
Alasdair Kergon
112d09deb1 Improve dmeventd messaging protocol: drain pipe and tag messages. 2007-02-02 17:08:51 +00:00
Alasdair Kergon
4dcaa2300c Add dm_event_handler_[gs]et_timeout functions. 
Streamline dm_report_field_* interface.
 2007-01-22 15:03:57 +00:00
Alasdair Kergon
c63c19a73e stat oom_adj and stay silent if it doesn't exist 
dm_event_handler now keeps private copies of strings
 2007-01-17 14:45:10 +00:00
Alasdair Kergon
5611829c89 more fixes 2007-01-16 23:03:13 +00:00
Alasdair Kergon
f6af1a67b5 more little fixes 2007-01-16 21:13:07 +00:00
Alasdair Kergon
61997bb9bb Add basic reporting functions to libdevmapper. 2007-01-16 18:04:15 +00:00
Alasdair Kergon
6ae178f91c fix recent checkins 2007-01-15 19:47:49 +00:00
Alasdair Kergon
b2486b3d7d use DMEVENTD_PATH 2007-01-15 19:11:58 +00:00
Alasdair Kergon
931d24a4b1 More libdevmapper-event interface changes and fixes. 
Rename dm_saprintf() to dm_asprintf().
 2007-01-15 18:21:01 +00:00
Alasdair Kergon
c8ee38201d Reinstate dm_event_get_registered_device 2007-01-12 20:22:11 +00:00
Alasdair Kergon
3165248642 Lots of dmeventd-related changes. 2007-01-11 21:54:53 +00:00
Alasdair Kergon
5b95f17814 Lots of dmevent changes. 
Export dm_basename().
Cope with a trailing space when comparing tables prior to possible reload.
 2007-01-08 15:18:52 +00:00
Alasdair Kergon
5e3bd86778 Rename _log to dm_log and export. 
Fix misc compile-time warnings.
 2006-01-31 14:50:38 +00:00
Alasdair Kergon
db204c51a6 Tidy some comments/messages. 2006-01-27 20:52:21 +00:00
Alasdair Kergon
fc2b1f2ce9 some init_client cleanup 2006-01-27 20:49:13 +00:00
Alasdair Kergon
7000cdb5ea Fix libdevmapper event daemon_running status. 2006-01-27 20:46:06 +00:00
Alasdair Kergon
3bee15b0fb Replace deprecated signal functions. 2006-01-27 20:45:17 +00:00
Alasdair Kergon
132a76156e fix dmevent registration return codes 2006-01-27 20:01:45 +00:00
Alasdair Kergon
74892f5c3d read/write loop fixes 2005-12-19 22:56:47 +00:00
Alasdair Kergon
e66f1197d6 comments 2005-12-13 13:34:31 +00:00
Alasdair Kergon
dd3ec4e87a dmeventd updates 2005-12-02 15:39:16 +00:00