00001
00022 #ifndef _XENO_QUEUE_H
00023 #define _XENO_QUEUE_H
00024
00025 #include <nucleus/synch.h>
00026 #include <nucleus/heap.h>
00027 #include <native/types.h>
00028
00029
00030 #define Q_PRIO XNSYNCH_PRIO
00031 #define Q_FIFO XNSYNCH_FIFO
00032 #define Q_DMA 0x100
00033 #define Q_SHARED 0x200
00034
00035 #define Q_UNLIMITED 0
00036
00037
00038 #define Q_NORMAL 0x0
00039 #define Q_URGENT 0x1
00040 #define Q_BROADCAST 0x2
00041
00042 typedef struct rt_queue_info {
00043
00044 int nwaiters;
00045
00046 int nmessages;
00047
00048 int mode;
00049
00050 size_t qlimit;
00051
00052 size_t poolsize;
00053
00054 size_t usedmem;
00055
00056 char name[XNOBJECT_NAME_LEN];
00057
00058 } RT_QUEUE_INFO;
00059
00060 typedef struct rt_queue_placeholder {
00061
00062 xnhandle_t opaque;
00063
00064 void *opaque2;
00065
00066 caddr_t mapbase;
00067
00068 size_t mapsize;
00069
00070 } RT_QUEUE_PLACEHOLDER;
00071
00072 #if defined(__KERNEL__) || defined(__XENO_SIM__)
00073
00074 #define XENO_QUEUE_MAGIC 0x55550707
00075
00076 typedef struct rt_queue {
00077
00078 unsigned magic;
00079
00080 xnsynch_t synch_base;
00081
00082 xnqueue_t pendq;
00083
00084 xnheap_t bufpool;
00085
00086 int mode;
00087
00088 xnhandle_t handle;
00089
00090 int qlimit;
00091
00092 char name[XNOBJECT_NAME_LEN];
00093
00094 #if defined(__KERNEL__) && defined(CONFIG_XENO_OPT_PERVASIVE)
00095 pid_t cpid;
00096 #endif
00097
00098 } RT_QUEUE;
00099
00100 typedef struct rt_queue_msg {
00101
00102 size_t size;
00103
00104 volatile unsigned refcount;
00105
00106 xnholder_t link;
00107
00108 #define link2rtmsg(ln) container_of(ln, rt_queue_msg_t, link)
00109
00110 } rt_queue_msg_t;
00111
00112 #ifdef __cplusplus
00113 extern "C" {
00114 #endif
00115
00116 int __native_queue_pkg_init(void);
00117
00118 void __native_queue_pkg_cleanup(void);
00119
00120 #ifdef __cplusplus
00121 }
00122 #endif
00123
00124 #else
00125
00126 typedef RT_QUEUE_PLACEHOLDER RT_QUEUE;
00127
00128 #ifdef __cplusplus
00129 extern "C" {
00130 #endif
00131
00132 int rt_queue_bind(RT_QUEUE *q,
00133 const char *name,
00134 RTIME timeout);
00135
00136 int rt_queue_unbind(RT_QUEUE *q);
00137
00138 #ifdef __cplusplus
00139 }
00140 #endif
00141
00142 #endif
00143
00144 #ifdef __cplusplus
00145 extern "C" {
00146 #endif
00147
00148
00149
00150 int rt_queue_create(RT_QUEUE *q,
00151 const char *name,
00152 size_t poolsize,
00153 size_t qlimit,
00154 int mode);
00155
00156 int rt_queue_delete(RT_QUEUE *q);
00157
00158 void *rt_queue_alloc(RT_QUEUE *q,
00159 size_t size);
00160
00161 int rt_queue_free(RT_QUEUE *q,
00162 void *buf);
00163
00164 int rt_queue_send(RT_QUEUE *q,
00165 void *buf,
00166 size_t size,
00167 int mode);
00168
00169 int rt_queue_write(RT_QUEUE *q,
00170 const void *buf,
00171 size_t size,
00172 int mode);
00173
00174 ssize_t rt_queue_receive(RT_QUEUE *q,
00175 void **bufp,
00176 RTIME timeout);
00177
00178 static inline ssize_t __deprecated_call__ rt_queue_recv(RT_QUEUE *q,
00179 void **bufp,
00180 RTIME timeout)
00181 {
00182 return rt_queue_receive(q,bufp,timeout);
00183 }
00184
00185 ssize_t rt_queue_read(RT_QUEUE *q,
00186 void *bufp,
00187 size_t size,
00188 RTIME timeout);
00189
00190 int rt_queue_inquire(RT_QUEUE *q,
00191 RT_QUEUE_INFO *info);
00192
00193 #ifdef __cplusplus
00194 }
00195 #endif
00196
00197 #endif