virThreadPool: Set thread worker name

Every thread created as a worker thread within a pool gets a name
according to virThreadPoolJobFunc name.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

src/libvirt_private.syms

@@ -2202,7 +2202,7 @@ virThreadPoolFree;
 virThreadPoolGetMaxWorkers;
 virThreadPoolGetMinWorkers;
 virThreadPoolGetPriorityWorkers;
-virThreadPoolNew;
+virThreadPoolNewFull;
 virThreadPoolSendJob;
 
 

src/util/virthreadpool.c

@@ -58,6 +58,7 @@ struct _virThreadPool {
     bool quit;
 
     virThreadPoolJobFunc jobFunc;
+    const char *jobFuncName;
     void *jobOpaque;
     virThreadPoolJobList jobList;
     size_t jobQueueDepth;
@@ -156,11 +157,13 @@ static void virThreadPoolWorker(void *opaque)
     virMutexUnlock(&pool->mutex);
 }
 
-virThreadPoolPtr virThreadPoolNew(size_t minWorkers,
-                                  size_t maxWorkers,
-                                  size_t prioWorkers,
-                                  virThreadPoolJobFunc func,
-                                  void *opaque)
+virThreadPoolPtr
+virThreadPoolNewFull(size_t minWorkers,
+                     size_t maxWorkers,
+                     size_t prioWorkers,
+                     virThreadPoolJobFunc func,
+                     const char *funcName,
+                     void *opaque)
 {
     virThreadPoolPtr pool;
     size_t i;
@@ -175,6 +178,7 @@ virThreadPoolPtr virThreadPoolNew(size_t minWorkers,
     pool->jobList.tail = pool->jobList.head = NULL;
 
     pool->jobFunc = func;
+    pool->jobFuncName = funcName;
     pool->jobOpaque = opaque;
 
     if (virMutexInit(&pool->mutex) < 0)
@@ -196,10 +200,12 @@ virThreadPoolPtr virThreadPoolNew(size_t minWorkers,
         data->pool = pool;
         data->cond = &pool->cond;
 
-        if (virThreadCreate(&pool->workers[i],
-                            true,
-                            virThreadPoolWorker,
-                            data) < 0) {
+        if (virThreadCreateFull(&pool->workers[i],
+                                true,
+                                virThreadPoolWorker,
+                                pool->jobFuncName,
+                                true,
+                                data) < 0) {
             goto error;
         }
         pool->nWorkers++;
@@ -218,10 +224,12 @@ virThreadPoolPtr virThreadPoolNew(size_t minWorkers,
             data->cond = &pool->prioCond;
             data->priority = true;
 
-            if (virThreadCreate(&pool->prioWorkers[i],
-                                true,
-                                virThreadPoolWorker,
-                                data) < 0) {
+            if (virThreadCreateFull(&pool->prioWorkers[i],
+                                    true,
+                                    virThreadPoolWorker,
+                                    pool->jobFuncName,
+                                    true,
+                                    data) < 0) {
                 goto error;
             }
             pool->nPrioWorkers++;
@@ -329,10 +337,12 @@ int virThreadPoolSendJob(virThreadPoolPtr pool,
         data->pool = pool;
         data->cond = &pool->cond;
 
-        if (virThreadCreate(&pool->workers[pool->nWorkers - 1],
-                            true,
-                            virThreadPoolWorker,
-                            data) < 0) {
+        if (virThreadCreateFull(&pool->workers[pool->nWorkers - 1],
+                                true,
+                                virThreadPoolWorker,
+                                pool->jobFuncName,
+                                true,
+                                data) < 0) {
             VIR_FREE(data);
             pool->nWorkers--;
             goto error;

src/util/virthreadpool.h

@@ -33,11 +33,15 @@ typedef virThreadPool *virThreadPoolPtr;
 
 typedef void (*virThreadPoolJobFunc)(void *jobdata, void *opaque);
 
-virThreadPoolPtr virThreadPoolNew(size_t minWorkers,
-                                  size_t maxWorkers,
-                                  size_t prioWorkers,
-                                  virThreadPoolJobFunc func,
-                                  void *opaque) ATTRIBUTE_NONNULL(4);
+# define virThreadPoolNew(min, max, prio, func, opaque) \
+    virThreadPoolNewFull(min, max, prio, func, #func, opaque)
+
+virThreadPoolPtr virThreadPoolNewFull(size_t minWorkers,
+                                      size_t maxWorkers,
+                                      size_t prioWorkers,
+                                      virThreadPoolJobFunc func,
+                                      const char *funcName,
+                                      void *opaque) ATTRIBUTE_NONNULL(4);
 
 size_t virThreadPoolGetMinWorkers(virThreadPoolPtr pool);
 size_t virThreadPoolGetMaxWorkers(virThreadPoolPtr pool);