include/minix/ipc.h

   1 #ifndef _IPC_H
   2 #define _IPC_H
   3
   4 #ifdef __NBSD_LIBC
   5 #endif
   6 #include <minix/ipcconst.h>
   7 #include <minix/type.h>
   8
   9 /*==========================================================================*
  10  * Types relating to messages.                                              *
  11  *==========================================================================*/
  12
  13 #define M1                 1
  14 #define M3                 3
  15 #define M4                 4
  16 #define M3_STRING         14    /* legacy m3_ca1 size (must not be changed) */
  17 #define M3_LONG_STRING    16    /* current m3_ca1 size (may be increased) */
  18
  19 typedef struct {int m1i1, m1i2, m1i3; char *m1p1, *m1p2, *m1p3;} mess_1;
  20 typedef struct {int m2i1, m2i2, m2i3; long m2l1, m2l2; char *m2p1;
  21         short m2s1;} mess_2;
  22 typedef struct {int m3i1, m3i2; char *m3p1; char m3ca1[M3_LONG_STRING];} mess_3;
  23 typedef struct {long m4l1, m4l2, m4l3, m4l4, m4l5;} mess_4;
  24 typedef struct {short m5s1, m5s2; int m5i1, m5i2; long m5l1, m5l2, m5l3;}mess_5;
  25 typedef struct {long m6l1, m6l2, m6l3; short m6s1, m6s2, m6s3; char m6c1, m6c2;
  26         char *m6p1, *m6p2;} mess_6;
  27 typedef struct {int m7i1, m7i2, m7i3, m7i4, m7i5; char *m7p1, *m7p2;} mess_7;
  28 typedef struct {int m8i1, m8i2; char *m8p1, *m8p2, *m8p3, *m8p4;} mess_8;
  29 typedef struct {long m9l1, m9l2, m9l3, m9l4, m9l5;
  30         short m9s1, m9s2, m9s3, m9s4; } mess_9;
  31 typedef struct {int m10i1, m10i2, m10i3, m10i4;
  32         long m10l1, m10l2, m10l3; } mess_10;
  33
  34 typedef struct {
  35   endpoint_t m_source;          /* who sent the message */
  36   int m_type;                   /* what kind of message is it */
  37   union {
  38         mess_1 m_m1;
  39         mess_2 m_m2;
  40         mess_3 m_m3;
  41         mess_4 m_m4;
  42         mess_5 m_m5;
  43         mess_7 m_m7;
  44         mess_8 m_m8;
  45         mess_6 m_m6;
  46         mess_9 m_m9;
  47         mess_10 m_m10;
  48   } m_u;
  49 } message __aligned(16);
  50
  51 /* The following defines provide names for useful members. */
  52 #define m1_i1  m_u.m_m1.m1i1
  53 #define m1_i2  m_u.m_m1.m1i2
  54 #define m1_i3  m_u.m_m1.m1i3
  55 #define m1_p1  m_u.m_m1.m1p1
  56 #define m1_p2  m_u.m_m1.m1p2
  57 #define m1_p3  m_u.m_m1.m1p3
  58
  59 #define m2_i1  m_u.m_m2.m2i1
  60 #define m2_i2  m_u.m_m2.m2i2
  61 #define m2_i3  m_u.m_m2.m2i3
  62 #define m2_l1  m_u.m_m2.m2l1
  63 #define m2_l2  m_u.m_m2.m2l2
  64 #define m2_p1  m_u.m_m2.m2p1
  65
  66 #define m2_s1  m_u.m_m2.m2s1
  67
  68 #define m3_i1  m_u.m_m3.m3i1
  69 #define m3_i2  m_u.m_m3.m3i2
  70 #define m3_p1  m_u.m_m3.m3p1
  71 #define m3_ca1 m_u.m_m3.m3ca1
  72
  73 #define m4_l1  m_u.m_m4.m4l1
  74 #define m4_l2  m_u.m_m4.m4l2
  75 #define m4_l3  m_u.m_m4.m4l3
  76 #define m4_l4  m_u.m_m4.m4l4
  77 #define m4_l5  m_u.m_m4.m4l5
  78
  79 #define m5_s1  m_u.m_m5.m5s1
  80 #define m5_s2  m_u.m_m5.m5s2
  81 #define m5_i1  m_u.m_m5.m5i1
  82 #define m5_i2  m_u.m_m5.m5i2
  83 #define m5_l1  m_u.m_m5.m5l1
  84 #define m5_l2  m_u.m_m5.m5l2
  85 #define m5_l3  m_u.m_m5.m5l3
  86
  87 #define m6_l1  m_u.m_m6.m6l1
  88 #define m6_l2  m_u.m_m6.m6l2
  89 #define m6_l3  m_u.m_m6.m6l3
  90 #define m6_s1  m_u.m_m6.m6s1
  91 #define m6_s2  m_u.m_m6.m6s2
  92 #define m6_s3  m_u.m_m6.m6s3
  93 #define m6_c1  m_u.m_m6.m6c1
  94 #define m6_c2  m_u.m_m6.m6c2
  95 #define m6_p1  m_u.m_m6.m6p1
  96 #define m6_p2  m_u.m_m6.m6p2
  97
  98 #define m7_i1  m_u.m_m7.m7i1
  99 #define m7_i2  m_u.m_m7.m7i2
 100 #define m7_i3  m_u.m_m7.m7i3
 101 #define m7_i4  m_u.m_m7.m7i4
 102 #define m7_i5  m_u.m_m7.m7i5
 103 #define m7_p1  m_u.m_m7.m7p1
 104 #define m7_p2  m_u.m_m7.m7p2
 105
 106 #define m8_i1  m_u.m_m8.m8i1
 107 #define m8_i2  m_u.m_m8.m8i2
 108 #define m8_p1  m_u.m_m8.m8p1
 109 #define m8_p2  m_u.m_m8.m8p2
 110 #define m8_p3  m_u.m_m8.m8p3
 111 #define m8_p4  m_u.m_m8.m8p4
 112
 113 #define m9_l1  m_u.m_m9.m9l1
 114 #define m9_l2  m_u.m_m9.m9l2
 115 #define m9_l3  m_u.m_m9.m9l3
 116 #define m9_l4  m_u.m_m9.m9l4
 117 #define m9_l5  m_u.m_m9.m9l5
 118 #define m9_s1  m_u.m_m9.m9s1
 119 #define m9_s2  m_u.m_m9.m9s2
 120 #define m9_s3  m_u.m_m9.m9s3
 121 #define m9_s4  m_u.m_m9.m9s4
 122
 123 #define m10_i1 m_u.m_m10.m10i1
 124 #define m10_i2 m_u.m_m10.m10i2
 125 #define m10_i3 m_u.m_m10.m10i3
 126 #define m10_i4 m_u.m_m10.m10i4
 127 #define m10_l1 m_u.m_m10.m10l1
 128 #define m10_l2 m_u.m_m10.m10l2
 129 #define m10_l3 m_u.m_m10.m10l3
 130
 131 /*==========================================================================*
 132  * Minix run-time system (IPC).                                             *
 133  *==========================================================================*/
 134
 135 /* Datastructure for asynchronous sends */
 136 typedef struct asynmsg
 137 {
 138         unsigned flags;
 139         endpoint_t dst;
 140         int result;
 141         message msg;
 142 } asynmsg_t;
 143
 144 /* Defines for flags field */
 145 #define AMF_EMPTY       000     /* slot is not inuse */
 146 #define AMF_VALID       001     /* slot contains message */
 147 #define AMF_DONE        002     /* Kernel has processed the message. The
 148                                  * result is stored in 'result'
 149                                  */
 150 #define AMF_NOTIFY      004     /* Send a notification when AMF_DONE is set */
 151 #define AMF_NOREPLY     010     /* Not a reply message for a SENDREC */
 152 #define AMF_NOTIFY_ERR  020     /* Send a notification when AMF_DONE is set and
 153                                  * delivery of the message failed */
 154
 155 /* Hide names to avoid name space pollution. */
 156 #define echo            _echo
 157 #define notify          _notify
 158 #define sendrec         _sendrec
 159 #define receive         _receive
 160 #define send            _send
 161 #define sendnb          _sendnb
 162 #define senda           _senda
 163
 164 int echo(message *m_ptr);
 165 int notify(endpoint_t dest);
 166 int sendrec(endpoint_t src_dest, message *m_ptr);
 167 int receive(endpoint_t src, message *m_ptr, int *status_ptr);
 168 int send(endpoint_t dest, message *m_ptr);
 169 int sendnb(endpoint_t dest, message *m_ptr);
 170 int senda(asynmsg_t *table, size_t count);
 171 int _minix_kernel_info_struct(struct minix_kerninfo **);
 172
 173 int _do_kernel_call(message *m_ptr);
 174
 175 #endif /* _IPC_H */