registry.h

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00001 
00022 #ifndef _RTAI_REGISTRY_H
00023 #define _RTAI_REGISTRY_H
00024 
00025 #include <rtai/types.h>
00026 
00027 #define RT_REGISTRY_SELF  RT_HANDLE_INVALID
00028 
00029 #if defined(__KERNEL__) && defined(CONFIG_PROC_FS) && defined(CONFIG_RTAI_OPT_NATIVE_REGISTRY)
00030 #define CONFIG_RTAI_NATIVE_EXPORT_REGISTRY 1
00031 #endif /* __KERNEL__ && CONFIG_PROC_FS && CONFIG_RTAI_OPT_NATIVE_REGISTRY */
00032 
00033 #if defined(__KERNEL__) || defined(__RTAI_SIM__)
00034 
00035 #include <nucleus/synch.h>
00036 #include <nucleus/thread.h>
00037 
00038 struct rt_object_procnode;
00039 
00040 typedef struct rt_object {
00041 
00042     xnholder_t link;
00043 #define link2rtobj(laddr) \
00044 ((RT_OBJECT *)(((char *)laddr) - (int)(&((RT_OBJECT *)0)->link)))
00045 
00046     void *objaddr;
00047 
00048     const char *key;    /* !< Hash key. */
00049 
00050     xnsynch_t safesynch; /* !< Safe synchronization object. */
00051 
00052     u_long safelock;     /* !< Safe lock count. */
00053 
00054     u_long cstamp;      /* !< Creation stamp. */
00055 
00056 #if defined(CONFIG_PROC_FS) && defined(__KERNEL__)
00057 
00058     struct rt_object_procnode *pnode; /* !< /proc information class. */
00059 
00060     struct proc_dir_entry *proc; /* !< /proc entry. */
00061 
00062 #endif /* CONFIG_PROC_FS && __KERNEL__ */
00063 
00064 } RT_OBJECT;
00065 
00066 typedef struct rt_hash {
00067 
00068     RT_OBJECT *object;
00069 
00070     struct rt_hash *next;       /* !< Next in h-table */
00071 
00072 } RT_HASH;
00073 
00074 #ifdef __cplusplus
00075 extern "C" {
00076 #endif
00077 
00078 int __registry_pkg_init(void);
00079 
00080 void __registry_pkg_cleanup(void);
00081 
00082 #if defined(CONFIG_PROC_FS) && defined(__KERNEL__)
00083 
00084 #include <linux/proc_fs.h>
00085 
00086 #define RT_OBJECT_PROC_RESERVED1 ((struct proc_dir_entry *)1)
00087 #define RT_OBJECT_PROC_RESERVED2 ((struct proc_dir_entry *)2)
00088 
00089 typedef ssize_t link_proc_t(char *buf,
00090                             int count,
00091                             void *data);
00092 
00093 typedef struct rt_object_procnode {
00094 
00095     struct proc_dir_entry *dir;
00096     const char *type;
00097     int entries;
00098     read_proc_t *read_proc;
00099     write_proc_t *write_proc;
00100     link_proc_t *link_proc;
00101 
00102 } RT_OBJECT_PROCNODE;
00103 
00104 #else /* !(CONFIG_PROC_FS && __KERNEL__) */
00105 
00106 typedef struct rt_object_procnode { /* Placeholder. */
00107 
00108     const char *type;
00109 
00110 } RT_OBJECT_PROCNODE;
00111 
00112 #endif /* CONFIG_PROC_FS && __KERNEL__ */
00113 
00114 /* Public interface. */
00115 
00116 int rt_registry_enter(const char *key,
00117                       void *objaddr,
00118                       rt_handle_t *phandle,
00119                       RT_OBJECT_PROCNODE *pnode);
00120 
00121 int rt_registry_bind(const char *key,
00122                      RTIME timeout,
00123                      rt_handle_t *phandle);
00124 
00125 int rt_registry_remove(rt_handle_t handle);
00126 
00127 int rt_registry_remove_safe(rt_handle_t handle,
00128                             RTIME timeout);
00129 
00130 void *rt_registry_get(rt_handle_t handle);
00131 
00132 void *rt_registry_fetch(rt_handle_t handle);
00133 
00134 u_long rt_registry_put(rt_handle_t handle);
00135 
00136 #ifdef __cplusplus
00137 }
00138 #endif
00139 
00140 #endif /* __KERNEL__ || __RTAI_SIM__ */
00141 
00142 #endif /* !_RTAI_REGISTRY_H */

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