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Code Issues Releases Wiki Activity

ircd::ctx::posix: Wrap pthread_setname_np().

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This commit is contained in:
Jason Volk 2020-05-05 19:12:21 -07:00
parent dfb91d4c20
commit 883a230830
2 changed files with 34 additions and 2 deletions
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1
ircd/Makefile.am
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@ -23,6 +23,7 @@ AM_LDFLAGS = \
-Wl,--wrap=pthread_create \
-Wl,--wrap=pthread_join \
-Wl,--wrap=pthread_self \
-Wl,--wrap=pthread_setname_np \
-Wl,-z,nodelete \
-Wl,-z,nodlopen \
-Wl,-z,lazy \

35
ircd/ctx_posix.cc
View file

@ -94,6 +94,37 @@ __wrap_pthread_self(void)
__real_pthread_self();
}
//
// hook pthread_setname_np
//
extern "C" int
__real_pthread_setname_np(pthread_t __target_thread,
const char *__name);
extern "C" int
__wrap_pthread_setname_np(pthread_t __target_thread,
const char *__name)
{
const auto it
{
std::find_if(begin(ircd::ctx::posix::ctxs), end(ircd::ctx::posix::ctxs), [&]
(const auto &context)
{
return ircd::ctx::id(context) == __target_thread;
})
};
return it != end(ircd::ctx::posix::ctxs)?
ircd_pthread_setname_np(__target_thread, __name):
__real_pthread_setname_np(__target_thread, __name);
}
int
pthread_setname_np(pthread_t __target_thread,
const char *__name)
__attribute__((weak, alias("__wrap_pthread_create")));
///////////////////////////////////////////////////////////////////////////////
//
// pthread supplement
@ -327,8 +358,8 @@ ircd_pthread_setname_np(pthread_t __target_thread,
const char *__name)
noexcept
{
always_assert(false);
return EINVAL;
//TODO: settable names in ircd::ctx
return 0;
}
int