diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc_r/uthread/uthread_sig.c | 9 | ||||
| -rw-r--r-- | lib/libpthread/uthread/uthread_sig.c | 9 |
2 files changed, 16 insertions, 2 deletions
diff --git a/lib/libc_r/uthread/uthread_sig.c b/lib/libc_r/uthread/uthread_sig.c index 3e55d6505a3..85aca6cbe57 100644 --- a/lib/libc_r/uthread/uthread_sig.c +++ b/lib/libc_r/uthread/uthread_sig.c @@ -42,6 +42,8 @@ static int volatile yield_on_unlock_thread = 0; static spinlock_t thread_link_list_lock = _SPINLOCK_INITIALIZER; +int _thread_sig_statistics[NSIG]; + /* Lock the thread list: */ void _lock_thread_list() @@ -78,6 +80,11 @@ _thread_sig_handler(int sig, int code, struct sigcontext * scp) pthread_t pthread; /* + * Record the number of times this signal has been received + */ + _thread_sig_statistics[sig]++; + + /* * Check if the pthread kernel has unblocked signals (or is about to) * and was on its way into a _select when the current * signal interrupted it: @@ -106,7 +113,7 @@ _thread_sig_handler(int sig, int code, struct sigcontext * scp) * unfortunate time which one of the threads is * modifying the thread list: */ - if (thread_link_list_lock.access_lock) + if (_atomic_is_locked(&thread_link_list_lock.access_lock)) /* * Set a flag so that the thread that has * the lock yields when it unlocks the diff --git a/lib/libpthread/uthread/uthread_sig.c b/lib/libpthread/uthread/uthread_sig.c index 3e55d6505a3..85aca6cbe57 100644 --- a/lib/libpthread/uthread/uthread_sig.c +++ b/lib/libpthread/uthread/uthread_sig.c @@ -42,6 +42,8 @@ static int volatile yield_on_unlock_thread = 0; static spinlock_t thread_link_list_lock = _SPINLOCK_INITIALIZER; +int _thread_sig_statistics[NSIG]; + /* Lock the thread list: */ void _lock_thread_list() @@ -78,6 +80,11 @@ _thread_sig_handler(int sig, int code, struct sigcontext * scp) pthread_t pthread; /* + * Record the number of times this signal has been received + */ + _thread_sig_statistics[sig]++; + + /* * Check if the pthread kernel has unblocked signals (or is about to) * and was on its way into a _select when the current * signal interrupted it: @@ -106,7 +113,7 @@ _thread_sig_handler(int sig, int code, struct sigcontext * scp) * unfortunate time which one of the threads is * modifying the thread list: */ - if (thread_link_list_lock.access_lock) + if (_atomic_is_locked(&thread_link_list_lock.access_lock)) /* * Set a flag so that the thread that has * the lock yields when it unlocks the |