00001
00049 #ifndef _RTAI_MUTEX_H
00050 #define _RTAI_MUTEX_H
00051
00052 #include <nucleus/synch.h>
00053 #include <rtai/types.h>
00054
00055 struct rt_task;
00056
00057 typedef struct rt_mutex_info {
00058
00059 int lockcnt;
00060
00061 int nwaiters;
00062
00063 char name[XNOBJECT_NAME_LEN];
00064
00065 } RT_MUTEX_INFO;
00066
00067 typedef struct rt_mutex_placeholder {
00068 rt_handle_t opaque;
00069 } RT_MUTEX_PLACEHOLDER;
00070
00071 #if defined(__KERNEL__) || defined(__RTAI_SIM__)
00072
00073 #define RTAI_MUTEX_MAGIC 0x55550505
00074
00075 typedef struct rt_mutex {
00076
00077 unsigned magic;
00078
00079 xnsynch_t synch_base;
00080
00081 rt_handle_t handle;
00082
00083 struct rt_task *owner;
00084
00085 int lockcnt;
00086
00087 char name[XNOBJECT_NAME_LEN];
00088
00089 #if defined(__KERNEL__) && defined(CONFIG_RTAI_OPT_FUSION)
00090 int source;
00091 #endif
00092
00093 } RT_MUTEX;
00094
00095 #ifdef __cplusplus
00096 extern "C" {
00097 #endif
00098
00099 int __mutex_pkg_init(void);
00100
00101 void __mutex_pkg_cleanup(void);
00102
00103 #ifdef __cplusplus
00104 }
00105 #endif
00106
00107 #else
00108
00109 typedef RT_MUTEX_PLACEHOLDER RT_MUTEX;
00110
00111 int rt_mutex_bind(RT_MUTEX *mutex,
00112 const char *name);
00113
00114 static inline int rt_mutex_unbind (RT_MUTEX *mutex)
00115
00116 {
00117 mutex->opaque = RT_HANDLE_INVALID;
00118 return 0;
00119 }
00120
00121 #endif
00122
00123 #ifdef __cplusplus
00124 extern "C" {
00125 #endif
00126
00127
00128
00129 int rt_mutex_create(RT_MUTEX *mutex,
00130 const char *name);
00131
00132 int rt_mutex_delete(RT_MUTEX *mutex);
00133
00134 int rt_mutex_lock(RT_MUTEX *mutex);
00135
00136 int rt_mutex_unlock(RT_MUTEX *mutex);
00137
00138 int rt_mutex_inquire(RT_MUTEX *mutex,
00139 RT_MUTEX_INFO *info);
00140
00141 #ifdef __cplusplus
00142 }
00143 #endif
00144
00145 #endif