2 files changed, 67 insertions, 14 deletions

diff --git a/common/thread.c b/common/thread.c
index fdc8112..eb535ab 100644
--- a/common/thread.c
+++ b/common/thread.c
@@ -1,8 +1,8 @@
 /*
  * thread.c
  *
- * Copyright (c) 2012 Martin Szulecki All Rights Reserved.
- * Copyright (c) 2012 Nikias Bassen All Rights Reserved.
+ * Copyright (c) 2012-2019 Nikias Bassen, All Rights Reserved.
+ * Copyright (c) 2012 Martin Szulecki, All Rights Reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -19,9 +19,12 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 #include "thread.h"
 
-int thread_new(thread_t *thread, thread_func_t thread_func, void* data)
+int thread_new(THREAD_T *thread, thread_func_t thread_func, void* data)
 {
 #ifdef WIN32
         HANDLE th = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)thread_func, data, 0, NULL);
@@ -36,20 +39,51 @@ int thread_new(thread_t *thread, thread_func_t thread_func, void* data)
 #endif
 }
 
-void thread_free(thread_t thread)
+void thread_detach(THREAD_T thread)
 {
 #ifdef WIN32
         CloseHandle(thread);
+#else
+        pthread_detach(thread);
 #endif
 }
 
-void thread_join(thread_t thread)
+void thread_free(THREAD_T thread)
+{
+#ifdef WIN32
+        CloseHandle(thread);
+#endif
+}
+
+int thread_join(THREAD_T thread)
 {
         /* wait for thread to complete */
 #ifdef WIN32
-        WaitForSingleObject(thread, INFINITE);
+        return (int)WaitForSingleObject(thread, INFINITE);
+#else
+        return pthread_join(thread, NULL);
+#endif
+}
+
+int thread_alive(THREAD_T thread)
+{
+#ifdef WIN32
+        return WaitForSingleObject(thread, 0) == WAIT_TIMEOUT;
 #else
-        pthread_join(thread, NULL);
+        return pthread_kill(thread, 0) == 0;
+#endif
+}
+
+int thread_cancel(THREAD_T thread)
+{
+#ifdef WIN32
+        return -1;
+#else
+#ifdef HAVE_PTHREAD_CANCEL
+        return pthread_cancel(thread);
+#else
+        return -1;
+#endif
 #endif
 }
 
diff --git a/common/thread.h b/common/thread.h
index bd53c5b..23e4510 100644
--- a/common/thread.h
+++ b/common/thread.h
@@ -1,8 +1,8 @@
 /*
  * thread.h
  *
- * Copyright (c) 2012 Martin Szulecki All Rights Reserved.
- * Copyright (c) 2012 Nikias Bassen All Rights Reserved.
+ * Copyright (c) 2012-2019 Nikias Bassen, All Rights Reserved.
+ * Copyright (c) 2012 Martin Szulecki, All Rights Reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -22,9 +22,11 @@
 #ifndef __THREAD_H
 #define __THREAD_H
 
+#include <stddef.h>
+
 #ifdef WIN32
 #include <windows.h>
-typedef HANDLE thread_t;
+typedef HANDLE THREAD_T;
 typedef CRITICAL_SECTION mutex_t;
 typedef volatile struct {
         LONG lock;
@@ -32,20 +34,37 @@ typedef volatile struct {
 } thread_once_t;
 #define THREAD_ONCE_INIT {0, 0}
 #define THREAD_ID GetCurrentThreadId()
+#define THREAD_T_NULL (THREAD_T)NULL
 #else
 #include <pthread.h>
-typedef pthread_t thread_t;
+#include <signal.h>
+typedef pthread_t THREAD_T;
 typedef pthread_mutex_t mutex_t;
 typedef pthread_once_t thread_once_t;
 #define THREAD_ONCE_INIT PTHREAD_ONCE_INIT
 #define THREAD_ID pthread_self()
+#define THREAD_T_NULL (THREAD_T)NULL
 #endif
 
 typedef void* (*thread_func_t)(void* data);
 
-int thread_new(thread_t* thread, thread_func_t thread_func, void* data);
-void thread_free(thread_t thread);
-void thread_join(thread_t thread);
+int thread_new(THREAD_T* thread, thread_func_t thread_func, void* data);
+void thread_detach(THREAD_T thread);
+void thread_free(THREAD_T thread);
+int thread_join(THREAD_T thread);
+int thread_alive(THREAD_T thread);
+
+int thread_cancel(THREAD_T thread);
+
+#ifdef WIN32
+#undef HAVE_THREAD_CLEANUP
+#else
+#ifdef HAVE_PTHREAD_CANCEL
+#define HAVE_THREAD_CLEANUP 1
+#define thread_cleanup_push(routine, arg) pthread_cleanup_push(routine, arg)
+#define thread_cleanup_pop(execute) pthread_cleanup_pop(execute)
+#endif
+#endif
 
 void mutex_init(mutex_t* mutex);
 void mutex_destroy(mutex_t* mutex);