搭建PVB架构，实现前端的基础布局、菜单、表格、图示等功能

libs/pvb/include/pvserver/wthread.h

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+/***************************************************************************
+                          wthread.h  -  description
+                             -------------------
+    begin                : Sun Nov 12 2000
+    copyright            : (C) 2000 by R. Lehrig
+    email                : lehrig@t-online.de
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as        *
+ *   published by the Free Software Foundation                             *
+ *                                                                         *
+ ***************************************************************************/
+/***********************************************************************************
+
+Wrapper for posix threads (UNIX,VMS,windows)
+
+(C) R. Lehrig 2000                                       lehrig@t-online.de
+
+***********************************************************************************/
+
+#ifndef _WTHREAD_H_
+#define _WTHREAD_H_
+
+#include "processviewserver.h"
+
+#ifdef PVWIN32
+#define WTREAD_GNUC1 ( __GNUC__ * 1000 ) + __GNUC_MINOR__
+#if WTREAD_GNUC1 < 4008
+#define PVWIN32THREAD
+#endif
+#include <windows.h>
+#include <winbase.h>
+#endif
+
+#include <stddef.h>
+#include <string.h>
+
+#ifdef PVWIN32THREAD
+#ifndef _WRAPTHREAD_
+#ifndef _RL_WTHREAD_H_
+typedef unsigned long int pthread_t;
+
+/* Attributes for threads */
+struct __sched_param
+{
+  int sched_priority;
+};
+
+typedef struct
+{
+  int     __detachstate;
+  int     __schedpolicy;
+  struct  __sched_param __schedparam;
+  int     __inheritsched;
+  int     __scope;
+  size_t  __guardsize;
+  int     __stackaddr_set;
+  void   *__stackaddr;
+  size_t  __stacksize;
+}pthread_attr_t;
+
+typedef HANDLE pthread_mutex_t;
+//old typedef CRITICAL_SECTION pthread_mutex_t;
+typedef long             pthread_mutexattr_t;
+#endif
+#endif
+
+#else  /* VMS or UNIX or new GCC on Windows*/
+#ifndef WIN_PTHREADS_H
+#include <pthread.h>
+#endif
+#endif /* end of MSWINDOWS */
+
+#ifndef _WRAPTHREAD_
+#ifndef _RL_WTHREAD_H_
+typedef struct
+{
+#ifdef PVWIN32THREAD
+  int    cmax;
+  HANDLE hSemaphore;
+#else
+  int              cmax;
+  int              nready;
+  pthread_mutex_t  mutex;
+  pthread_cond_t   cond;
+#endif
+}WSEMAPHORE;
+#endif
+#endif
+
+/* function prototypes */
+#ifndef __VMS
+#ifdef __cplusplus
+extern "C" {
+#endif
+#endif
+int  pvthread_attr_init(pthread_attr_t *attr);
+int  pvthread_create(pthread_t *tid, const pthread_attr_t *attr,
+                      void *(*func)(void*), void *arg);
+void pvthread_close_handle(pthread_t *tid);
+void pvthread_exit(void *status);
+int  pvthread_join(pthread_t tid, void **status);
+int  pvthread_mutex_init(pthread_mutex_t *mptr, const pthread_mutexattr_t *attr);
+int  pvthread_mutex_destroy(pthread_mutex_t *mptr);
+int  pvthread_mutex_lock(pthread_mutex_t *mptr);
+int  pvthread_mutex_trylock(pthread_mutex_t *mptr);
+int  pvthread_mutex_unlock(pthread_mutex_t *mptr);
+int  pvthread_cancel(pthread_t tid);
+int  pvinit_semaphore(WSEMAPHORE *s, int cmax);
+int  pvincrement_semaphore(WSEMAPHORE *s);
+int  pvwait_semaphore(WSEMAPHORE *s);
+int  pvthread_sleep(long msec);
+#ifndef __VMS
+#ifdef __cplusplus
+};
+#endif
+#endif
+
+#endif