test/on_exit: use static variables for on_exit hooks#56596
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test/on_exit: use static variables for on_exit hooks#56596
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before this change, we allocate memory chunks using malloc(), but
we never free them. and LeakSanitizer points this out
```
Direct leak of 4 byte(s) in 1 object(s) allocated from:
#0 0x5588bfe532de in malloc (/home/jenkins-build/build/workspace/ceph-pull-requests/build/bin/unittest_on_exit+0xa52de) (BuildId: 7c7a92bf5719592938c5307214bcd9b080bd847f)
#1 0x5588bfe911d7 in func_scope() /home/jenkins-build/build/workspace/ceph-pull-requests/src/test/on_exit.cc:33:22
#2 0x5588bfe90804 in main /home/jenkins-build/build/workspace/ceph-pull-requests/src/test/on_exit.cc:64:3
#3 0x7f23081c1d8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
Direct leak of 4 byte(s) in 1 object(s) allocated from:
#0 0x5588bfe532de in malloc (/home/jenkins-build/build/workspace/ceph-pull-requests/build/bin/unittest_on_exit+0xa52de) (BuildId: 7c7a92bf5719592938c5307214bcd9b080bd847f)
#1 0x5588bfe91160 in func_scope() /home/jenkins-build/build/workspace/ceph-pull-requests/src/test/on_exit.cc:29:22
#2 0x5588bfe90804 in main /home/jenkins-build/build/workspace/ceph-pull-requests/src/test/on_exit.cc:64:3
#3 0x7f23081c1d8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
```
in this change, instead of allocating the variables using `malloc()`,
we keep them in static variables, so that they can be accessed by
`OnExitManager` even if it is a static variable.
with this change, the memory leak reports for this source file go away.
Signed-off-by: Kefu Chai <tchaikov@gmail.com>
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jenkins test make check |
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@rzarzynski hi Radek, could you help review this change? |
rzarzynski
approved these changes
Apr 1, 2024
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LGTM!
CCing @NitzanMordhai as he is poking around the intersection of Valgrind and our unittests.
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@rzarzynski hi Radek, thank you for your review and approval. i am removing the "needs-qa" label, as this change only touches the unit test of "on_exit.cc", which is compiled into |
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before this change, we allocate memory chunks using malloc(), but
we never free them. and LeakSanitizer points this out
in this change, instead of allocating the variables using
malloc(),we keep them in static variables, so that they can be accessed by
OnExitManagereven if it is a static variable.with this change, the memory leak reports for this source file go away.
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