add functions: get thread counters

src/tests/test_thread_pool.c

@@ -81,6 +81,17 @@ int test(FCThreadPool *pool)
     return 0;
 }
 
+static void output(FCThreadPool *pool, const int64_t start_time)
+{
+    printf("thread pool dealing count: %d, avail count: %d, "
+            "counter: %d, total: %"PRId64", time used: %"PRId64" ms\n",
+            fc_thread_pool_dealing_count(pool),
+            fc_thread_pool_avail_count(pool),
+            __sync_add_and_fetch(&counter, 0),
+            __sync_add_and_fetch(&total, 0),
+            get_current_time_ms() - start_time);
+}
+
 int main(int argc, char *argv[])
 {
     FCThreadPool pool;
@@ -104,12 +115,10 @@ int main(int argc, char *argv[])
     }
 
     result = test(&pool);
+    output(&pool, start_time);
 
     sleep(10);
-	printf("counter: %d, total: %"PRId64", time used: %"PRId64" ms\n",
-            __sync_add_and_fetch(&counter, 0),
-            __sync_add_and_fetch(&total, 0),
-            get_current_time_ms() - start_time);
+    output(&pool, start_time);
 
     result = test(&pool);
     sleep(5);
@@ -117,10 +126,7 @@ int main(int argc, char *argv[])
     continue_flag = false;
 
     sleep(2);
-	printf("counter: %d, total: %"PRId64", time used: %"PRId64" ms\n",
-            __sync_add_and_fetch(&counter, 0),
-            __sync_add_and_fetch(&total, 0),
-            get_current_time_ms() - start_time);
+    output(&pool, start_time);
 
     fc_thread_pool_destroy(&pool);
     logInfo("exit");

src/thread_pool.c

@@ -3,7 +3,6 @@
 #include <pthread.h>
 #include <unistd.h>
 #include <string.h>
-#include "pthread_func.h"
 #include "sched_thread.h"
 #include "fc_memory.h"
 #include "thread_pool.h"
@@ -204,10 +203,6 @@ int fc_thread_pool_run(FCThreadPool *pool, fc_thread_pool_callback func,
     struct timespec ts;
     int result;
 
-    if (func == NULL) {
-        return EINVAL;
-    }
-
     thread = NULL;
     ts.tv_nsec = 0;
     PTHREAD_MUTEX_LOCK(&pool->lock);

src/thread_pool.h

@@ -4,6 +4,7 @@
 #include <time.h>
 #include <pthread.h>
 #include "fast_mblock.h"
+#include "pthread_func.h"
 
 typedef void (*fc_thread_pool_callback)(void *arg);
 
@@ -52,6 +53,28 @@ void fc_thread_pool_destroy(FCThreadPool *pool);
 int fc_thread_pool_run(FCThreadPool *pool, fc_thread_pool_callback func,
         void *arg);
 
+static inline int fc_thread_pool_dealing_count(FCThreadPool *pool)
+{
+    return __sync_add_and_fetch(&pool->thread_counts.dealing, 0);
+}
+
+static inline int fc_thread_pool_avail_count(FCThreadPool *pool)
+{
+    return pool->thread_counts.limit -
+        __sync_add_and_fetch(&pool->thread_counts.dealing, 0);
+}
+
+static inline int fc_thread_pool_running_count(FCThreadPool *pool)
+{
+    int running_count;
+
+    PTHREAD_MUTEX_LOCK(&pool->lock);
+    running_count = pool->thread_counts.running;
+    PTHREAD_MUTEX_UNLOCK(&pool->lock);
+
+    return running_count;
+}
+
 #ifdef __cplusplus
 }
 #endif