diff options
Diffstat (limited to 'thread.h')
| -rw-r--r-- | thread.h | 25 |
1 files changed, 24 insertions, 1 deletions
@@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: thread.h 2.1 2009/04/13 13:50:39 kls Exp $ + * $Id: thread.h 2.2 2012/09/20 08:46:27 kls Exp $ */ #ifndef __THREAD_H @@ -157,6 +157,29 @@ public: #define LOCK_THREAD cThreadLock ThreadLock(this) +class cIoThrottle { +private: + static cMutex mutex; + static int count; + bool active; +public: + cIoThrottle(void); + ~cIoThrottle(); + void Activate(void); + ///< Activates the global I/O throttling mechanism. + ///< This function may be called any number of times, but only + ///< the first call after an inactive state will have an effect. + void Release(void); + ///< Releases the global I/O throttling mechanism. + ///< This function may be called any number of times, but only + ///< the first call after an active state will have an effect. + bool Active(void) { return active; } + ///< Returns true if this I/O throttling object is currently active. + static bool Engaged(void); + ///< Returns true if any I/O throttling object is currently active. + }; + + // cPipe implements a pipe that closes all unnecessary file descriptors in // the child process. |