virThread: Set thread job

Automatically assign a job to every thread created by virThreadCreate.
The name of the virThreadFunc function passed to virThreadCreate is used
as the job or worker name in case no name is explicitly passed.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>

src/libvirt_private.syms

@@ -2181,7 +2181,7 @@ virRWLockRead;
 virRWLockUnlock;
 virRWLockWrite;
 virThreadCancel;
-virThreadCreate;
+virThreadCreateFull;
 virThreadID;
 virThreadInitialize;
 virThreadIsSelf;

src/util/virthread.c

@@ -30,6 +30,7 @@
 #endif
 
 #include "viralloc.h"
+#include "virthreadjob.h"
 
 
 /* Nothing special required for pthreads */
@@ -184,6 +185,8 @@ void virCondBroadcast(virCondPtr c)
 
 struct virThreadArgs {
     virThreadFunc func;
+    const char *funcName;
+    bool worker;
     void *opaque;
 };
 
@@ -194,14 +197,26 @@ static void *virThreadHelper(void *data)
 
     /* Free args early, rather than tying it up during the entire thread.  */
     VIR_FREE(args);
+
+    if (local.worker)
+        virThreadJobSetWorker(local.funcName);
+    else
+        virThreadJobSet(local.funcName);
+
     local.func(local.opaque);
+
+    if (!local.worker)
+        virThreadJobClear(0);
+
     return NULL;
 }
 
-int virThreadCreate(virThreadPtr thread,
-                    bool joinable,
-                    virThreadFunc func,
-                    void *opaque)
+int virThreadCreateFull(virThreadPtr thread,
+                        bool joinable,
+                        virThreadFunc func,
+                        const char *funcName,
+                        bool worker,
+                        void *opaque)
 {
     struct virThreadArgs *args;
     pthread_attr_t attr;
@@ -216,6 +231,8 @@ int virThreadCreate(virThreadPtr thread,
     }
 
     args->func = func;
+    args->funcName = funcName;
+    args->worker = worker;
     args->opaque = opaque;
 
     if (!joinable)

src/util/virthread.h

@@ -88,10 +88,15 @@ void virThreadOnExit(void);
 
 typedef void (*virThreadFunc)(void *opaque);
 
-int virThreadCreate(virThreadPtr thread,
-                    bool joinable,
-                    virThreadFunc func,
-                    void *opaque) ATTRIBUTE_RETURN_CHECK;
+# define virThreadCreate(thread, joinable, func, opaque) \
+    virThreadCreateFull(thread, joinable, func, #func, false, opaque)
+
+int virThreadCreateFull(virThreadPtr thread,
+                        bool joinable,
+                        virThreadFunc func,
+                        const char *funcName,
+                        bool worker,
+                        void *opaque) ATTRIBUTE_RETURN_CHECK;
 void virThreadSelf(virThreadPtr thread);
 bool virThreadIsSelf(virThreadPtr thread);
 void virThreadJoin(virThreadPtr thread);