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Code Issues Releases Activity

Add lock annotations to libcuse.

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- Add annotations to the lock/unlock function to indicate that the
  function is allowed to lock and unlock the underlying pthread mutex.

- Add __guarded_by() annotations to the global variables.

Approved by:	hselasky@
This commit is contained in:
Ed Schouten 2014-09-01 19:56:28 +00:00
parent 8c8f31e7b2
commit 8da5129816
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=270950
1 changed files with 7 additions and 5 deletions
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12
lib/libcuse/cuse_lib.c
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@ -79,20 +79,22 @@ struct cuse_dev {
void *priv1; void *priv1;
}; };
static TAILQ_HEAD(, cuse_dev) h_cuse;
static TAILQ_HEAD(, cuse_dev_entered) h_cuse_entered;
static int f_cuse = -1; static int f_cuse = -1;
static pthread_mutex_t m_cuse; static pthread_mutex_t m_cuse;
static struct cuse_vm_allocation a_cuse[CUSE_ALLOC_UNIT_MAX]; static TAILQ_HEAD(, cuse_dev) h_cuse __guarded_by(m_cuse);
static TAILQ_HEAD(, cuse_dev_entered) h_cuse_entered __guarded_by(m_cuse);
static struct cuse_vm_allocation a_cuse[CUSE_ALLOC_UNIT_MAX]
__guarded_by(m_cuse);
static void static void
cuse_lock(void) cuse_lock(void) __locks_exclusive(m_cuse)
{ {
pthread_mutex_lock(&m_cuse); pthread_mutex_lock(&m_cuse);
} }
static void static void
cuse_unlock(void) cuse_unlock(void) __unlocks(m_cuse)
{ {
pthread_mutex_unlock(&m_cuse); pthread_mutex_unlock(&m_cuse);
} }