include/minix/ipc.h

   1 #ifndef _IPC_H
   2 #define _IPC_H
   3
   4 #include <minix/ipcconst.h>
   5 #include <minix/type.h>
   6
   7 /*==========================================================================*
   8  * Types relating to messages.                                              *
   9  *==========================================================================*/
  10
  11 #define M1                 1
  12 #define M3                 3
  13 #define M4                 4
  14 #define M3_STRING         14    /* legacy m3_ca1 size (must not be changed) */
  15 #define M3_LONG_STRING    16    /* current m3_ca1 size (may be increased) */
  16
  17 typedef struct {int m1i1, m1i2, m1i3; char *m1p1, *m1p2, *m1p3;} mess_1;
  18 typedef struct {int m2i1, m2i2, m2i3; long m2l1, m2l2; char *m2p1;
  19         short m2s1;} mess_2;
  20 typedef struct {int m3i1, m3i2; char *m3p1; char m3ca1[M3_LONG_STRING];} mess_3;
  21 typedef struct {long m4l1, m4l2, m4l3, m4l4, m4l5;} mess_4;
  22 typedef struct {short m5s1, m5s2; int m5i1, m5i2; long m5l1, m5l2, m5l3;}mess_5;
  23 typedef struct {long m6l1, m6l2, m6l3; short m6s1, m6s2, m6s3; char m6c1, m6c2;
  24         char *m6p1, *m6p2;} mess_6;
  25 typedef struct {int m7i1, m7i2, m7i3, m7i4; char *m7p1, *m7p2;} mess_7;
  26 typedef struct {int m8i1, m8i2; char *m8p1, *m8p2, *m8p3, *m8p4;} mess_8;
  27 typedef struct {long m9l1, m9l2, m9l3, m9l4, m9l5;
  28         short m9s1, m9s2, m9s3, m9s4; } mess_9;
  29
  30 typedef struct {
  31   endpoint_t m_source;          /* who sent the message */
  32   int m_type;                   /* what kind of message is it */
  33   union {
  34         mess_1 m_m1;
  35         mess_2 m_m2;
  36         mess_3 m_m3;
  37         mess_4 m_m4;
  38         mess_5 m_m5;
  39         mess_7 m_m7;
  40         mess_8 m_m8;
  41         mess_6 m_m6;
  42         mess_9 m_m9;
  43   } m_u;
  44 } message;
  45
  46 /* The following defines provide names for useful members. */
  47 #define m1_i1  m_u.m_m1.m1i1
  48 #define m1_i2  m_u.m_m1.m1i2
  49 #define m1_i3  m_u.m_m1.m1i3
  50 #define m1_p1  m_u.m_m1.m1p1
  51 #define m1_p2  m_u.m_m1.m1p2
  52 #define m1_p3  m_u.m_m1.m1p3
  53
  54 #define m2_i1  m_u.m_m2.m2i1
  55 #define m2_i2  m_u.m_m2.m2i2
  56 #define m2_i3  m_u.m_m2.m2i3
  57 #define m2_l1  m_u.m_m2.m2l1
  58 #define m2_l2  m_u.m_m2.m2l2
  59 #define m2_p1  m_u.m_m2.m2p1
  60
  61 #define m2_s1  m_u.m_m2.m2s1
  62
  63 #define m3_i1  m_u.m_m3.m3i1
  64 #define m3_i2  m_u.m_m3.m3i2
  65 #define m3_p1  m_u.m_m3.m3p1
  66 #define m3_ca1 m_u.m_m3.m3ca1
  67
  68 #define m4_l1  m_u.m_m4.m4l1
  69 #define m4_l2  m_u.m_m4.m4l2
  70 #define m4_l3  m_u.m_m4.m4l3
  71 #define m4_l4  m_u.m_m4.m4l4
  72 #define m4_l5  m_u.m_m4.m4l5
  73
  74 #define m5_s1  m_u.m_m5.m5s1
  75 #define m5_s2  m_u.m_m5.m5s2
  76 #define m5_i1  m_u.m_m5.m5i1
  77 #define m5_i2  m_u.m_m5.m5i2
  78 #define m5_l1  m_u.m_m5.m5l1
  79 #define m5_l2  m_u.m_m5.m5l2
  80 #define m5_l3  m_u.m_m5.m5l3
  81
  82 #define m6_l1  m_u.m_m6.m6l1
  83 #define m6_l2  m_u.m_m6.m6l2
  84 #define m6_l3  m_u.m_m6.m6l3
  85 #define m6_s1  m_u.m_m6.m6s1
  86 #define m6_s2  m_u.m_m6.m6s2
  87 #define m6_s3  m_u.m_m6.m6s3
  88 #define m6_c1  m_u.m_m6.m6c1
  89 #define m6_c2  m_u.m_m6.m6c2
  90 #define m6_p1  m_u.m_m6.m6p1
  91 #define m6_p2  m_u.m_m6.m6p2
  92
  93 #define m7_i1  m_u.m_m7.m7i1
  94 #define m7_i2  m_u.m_m7.m7i2
  95 #define m7_i3  m_u.m_m7.m7i3
  96 #define m7_i4  m_u.m_m7.m7i4
  97 #define m7_p1  m_u.m_m7.m7p1
  98 #define m7_p2  m_u.m_m7.m7p2
  99
 100 #define m8_i1  m_u.m_m8.m8i1
 101 #define m8_i2  m_u.m_m8.m8i2
 102 #define m8_p1  m_u.m_m8.m8p1
 103 #define m8_p2  m_u.m_m8.m8p2
 104 #define m8_p3  m_u.m_m8.m8p3
 105 #define m8_p4  m_u.m_m8.m8p4
 106
 107 #define m9_l1  m_u.m_m9.m9l1
 108 #define m9_l2  m_u.m_m9.m9l2
 109 #define m9_l3  m_u.m_m9.m9l3
 110 #define m9_l4  m_u.m_m9.m9l4
 111 #define m9_l5  m_u.m_m9.m9l5
 112 #define m9_s1  m_u.m_m9.m9s1
 113 #define m9_s2  m_u.m_m9.m9s2
 114 #define m9_s3  m_u.m_m9.m9s3
 115 #define m9_s4  m_u.m_m9.m9s4
 116
 117 /*==========================================================================*
 118  * Minix run-time system (IPC).                                             *
 119  *==========================================================================*/
 120
 121 /* Datastructure for asynchronous sends */
 122 typedef struct asynmsg
 123 {
 124         unsigned flags;
 125         endpoint_t dst;
 126         int result;
 127         message msg;
 128 } asynmsg_t;
 129
 130 /* Defines for flags field */
 131 #define AMF_EMPTY       0       /* slot is not inuse */
 132 #define AMF_VALID       1       /* slot contains message */
 133 #define AMF_DONE        2       /* Kernel has processed the message. The
 134                                  * result is stored in 'result'
 135                                  */
 136 #define AMF_NOTIFY      4       /* Send a notification when AMF_DONE is set */
 137 #define AMF_NOREPLY     8       /* Not a reply message for a SENDREC */
 138
 139 /* Hide names to avoid name space pollution. */
 140 #define echo            _echo
 141 #define notify          _notify
 142 #define sendrec         _sendrec
 143 #define receive         _receive
 144 #define send            _send
 145 #define sendnb          _sendnb
 146 #define senda           _senda
 147
 148 _PROTOTYPE( int echo, (message *m_ptr)                                  );
 149 _PROTOTYPE( int notify, (endpoint_t dest)                               );
 150 _PROTOTYPE( int sendrec, (endpoint_t src_dest, message *m_ptr)          );
 151 _PROTOTYPE( int receive, (endpoint_t src, message *m_ptr, int *status_ptr));
 152 _PROTOTYPE( int send, (endpoint_t dest, message *m_ptr)                 );
 153 _PROTOTYPE( int sendnb, (endpoint_t dest, message *m_ptr)               );
 154 _PROTOTYPE( int senda, (asynmsg_t *table, size_t count)                 );
 155
 156 _PROTOTYPE( int _do_kernel_call, (message *m_ptr)                       );
 157
 158 #endif /* _IPC_H */