* This function must the called before any other libgit2 function in
* order to set up global state and threading.
*
- * This function may be called multiple times.
+ * This function may be called multiple times - it will return the number
+ * of times the initialization has been called (including this one) that have
+ * not subsequently been shutdown.
*
- * @return 0 or an error code
+ * @return the number of initializations of the library, or an error code.
*/
GIT_EXTERN(int) git_libgit2_init(void);
* Shutdown the global state
*
* Clean up the global state and threading context after calling it as
- * many times as `git_libgit2_init()` was called.
+ * many times as `git_libgit2_init()` was called - it will return the
+ * number of remainining initializations that have not been shutdown
+ * (after this one).
*
+ * @return the number of remaining initializations of the library, or an
+ * error code.
*/
-GIT_EXTERN(void) git_libgit2_shutdown(void);
+GIT_EXTERN(int) git_libgit2_shutdown(void);
/** @} */
GIT_END_DECL
int git_libgit2_init(void)
{
- int error = 0;
+ int ret;
/* Enter the lock */
while (InterlockedCompareExchange(&_mutex, 1, 0)) { Sleep(0); }
/* Only do work on a 0 -> 1 transition of the refcount */
- if (1 == git_atomic_inc(&git__n_inits))
- error = synchronized_threads_init();
+ if ((ret = git_atomic_inc(&git__n_inits)) == 1) {
+ if (synchronized_threads_init() < 0)
+ ret = -1;
+ }
/* Exit the lock */
InterlockedExchange(&_mutex, 0);
- return error;
+ return ret;
}
static void synchronized_threads_shutdown(void)
git_mutex_free(&git__mwindow_mutex);
}
-void git_libgit2_shutdown(void)
+int git_libgit2_shutdown(void)
{
+ int ret;
+
/* Enter the lock */
while (InterlockedCompareExchange(&_mutex, 1, 0)) { Sleep(0); }
/* Only do work on a 1 -> 0 transition of the refcount */
- if (0 == git_atomic_dec(&git__n_inits))
+ if ((ret = git_atomic_dec(&git__n_inits)) == 0)
synchronized_threads_shutdown();
/* Exit the lock */
InterlockedExchange(&_mutex, 0);
+
+ return ret;
}
git_global_st *git__global_state(void)
int git_libgit2_init(void)
{
+ int ret;
+
pthread_once(&_once_init, init_once);
- git_atomic_inc(&git__n_inits);
- return init_error;
+ ret = git_atomic_inc(&git__n_inits);
+
+ return init_error ? init_error : ret;
}
-void git_libgit2_shutdown(void)
+int git_libgit2_shutdown(void)
{
void *ptr = NULL;
pthread_once_t new_once = PTHREAD_ONCE_INIT;
+ int ret;
- if (git_atomic_dec(&git__n_inits) > 0) return;
+ if ((ret = git_atomic_dec(&git__n_inits)) > 0)
+ return ret;
/* Shut down any subsystems that have global state */
git__shutdown();
pthread_key_delete(_tls_key);
git_mutex_free(&git__mwindow_mutex);
_once_init = new_once;
+
+ return ret;
}
git_global_st *git__global_state(void)
ssl_inited = 1;
}
- git_atomic_inc(&git__n_inits);
- return 0;
+ return git_atomic_inc(&git__n_inits);
}
-void git_libgit2_shutdown(void)
+int git_libgit2_shutdown(void)
{
+ int ret;
+
/* Shut down any subsystems that have global state */
- if (0 == git_atomic_dec(&git__n_inits))
+ if (ret = git_atomic_dec(&git__n_inits))
git__shutdown();
+
+ return ret;
}
git_global_st *git__global_state(void)
--- /dev/null
+#include "clar_libgit2.h"
+
+void test_core_init__returns_count(void)
+{
+ /* libgit2_clar initializes us first, so we have an existing
+ * initialization.
+ */
+ cl_assert_equal_i(2, git_libgit2_init());
+ cl_assert_equal_i(3, git_libgit2_init());
+
+ cl_assert_equal_i(2, git_libgit2_shutdown());
+ cl_assert_equal_i(1, git_libgit2_shutdown());
+}
+