#ifndef _IPC_H #define _IPC_H #ifdef __NBSD_LIBC #endif #include #include #include /*==========================================================================* * Types relating to messages. * *==========================================================================*/ #define M1 1 #define M3 3 #define M4 4 #define M3_STRING 14 /* legacy m3_ca1 size (must not be changed) */ #define M3_LONG_STRING 16 /* current m3_ca1 size (may be increased) */ typedef struct {int m1i1, m1i2, m1i3; char *m1p1, *m1p2, *m1p3;} mess_1; typedef struct {int m2i1, m2i2, m2i3; long m2l1, m2l2; char *m2p1; short m2s1;} mess_2; typedef struct {int m3i1, m3i2; char *m3p1; char m3ca1[M3_LONG_STRING];} mess_3; typedef struct {long m4l1, m4l2, m4l3, m4l4, m4l5;} mess_4; typedef struct {short m5s1, m5s2; int m5i1, m5i2; long m5l1, m5l2, m5l3;}mess_5; typedef struct {long m6l1, m6l2, m6l3; short m6s1, m6s2, m6s3; char m6c1, m6c2; char *m6p1, *m6p2;} mess_6; typedef struct {int m7i1, m7i2, m7i3, m7i4, m7i5; char *m7p1, *m7p2;} mess_7; typedef struct {int m8i1, m8i2; char *m8p1, *m8p2, *m8p3, *m8p4;} mess_8; typedef struct {long m9l1, m9l2, m9l3, m9l4, m9l5; short m9s1, m9s2, m9s3, m9s4; } mess_9; typedef struct {int m10i1, m10i2, m10i3, m10i4; long m10l1, m10l2, m10l3; } mess_10; typedef struct { endpoint_t m_source; /* who sent the message */ int m_type; /* what kind of message is it */ union { mess_1 m_m1; mess_2 m_m2; mess_3 m_m3; mess_4 m_m4; mess_5 m_m5; mess_7 m_m7; mess_8 m_m8; mess_6 m_m6; mess_9 m_m9; mess_10 m_m10; } m_u; } message __aligned(16); /* The following defines provide names for useful members. */ #define m1_i1 m_u.m_m1.m1i1 #define m1_i2 m_u.m_m1.m1i2 #define m1_i3 m_u.m_m1.m1i3 #define m1_p1 m_u.m_m1.m1p1 #define m1_p2 m_u.m_m1.m1p2 #define m1_p3 m_u.m_m1.m1p3 #define m2_i1 m_u.m_m2.m2i1 #define m2_i2 m_u.m_m2.m2i2 #define m2_i3 m_u.m_m2.m2i3 #define m2_l1 m_u.m_m2.m2l1 #define m2_l2 m_u.m_m2.m2l2 #define m2_p1 m_u.m_m2.m2p1 #define m2_s1 m_u.m_m2.m2s1 #define m3_i1 m_u.m_m3.m3i1 #define m3_i2 m_u.m_m3.m3i2 #define m3_p1 m_u.m_m3.m3p1 #define m3_ca1 m_u.m_m3.m3ca1 #define m4_l1 m_u.m_m4.m4l1 #define m4_l2 m_u.m_m4.m4l2 #define m4_l3 m_u.m_m4.m4l3 #define m4_l4 m_u.m_m4.m4l4 #define m4_l5 m_u.m_m4.m4l5 #define m5_s1 m_u.m_m5.m5s1 #define m5_s2 m_u.m_m5.m5s2 #define m5_i1 m_u.m_m5.m5i1 #define m5_i2 m_u.m_m5.m5i2 #define m5_l1 m_u.m_m5.m5l1 #define m5_l2 m_u.m_m5.m5l2 #define m5_l3 m_u.m_m5.m5l3 #define m6_l1 m_u.m_m6.m6l1 #define m6_l2 m_u.m_m6.m6l2 #define m6_l3 m_u.m_m6.m6l3 #define m6_s1 m_u.m_m6.m6s1 #define m6_s2 m_u.m_m6.m6s2 #define m6_s3 m_u.m_m6.m6s3 #define m6_c1 m_u.m_m6.m6c1 #define m6_c2 m_u.m_m6.m6c2 #define m6_p1 m_u.m_m6.m6p1 #define m6_p2 m_u.m_m6.m6p2 #define m7_i1 m_u.m_m7.m7i1 #define m7_i2 m_u.m_m7.m7i2 #define m7_i3 m_u.m_m7.m7i3 #define m7_i4 m_u.m_m7.m7i4 #define m7_i5 m_u.m_m7.m7i5 #define m7_p1 m_u.m_m7.m7p1 #define m7_p2 m_u.m_m7.m7p2 #define m8_i1 m_u.m_m8.m8i1 #define m8_i2 m_u.m_m8.m8i2 #define m8_p1 m_u.m_m8.m8p1 #define m8_p2 m_u.m_m8.m8p2 #define m8_p3 m_u.m_m8.m8p3 #define m8_p4 m_u.m_m8.m8p4 #define m9_l1 m_u.m_m9.m9l1 #define m9_l2 m_u.m_m9.m9l2 #define m9_l3 m_u.m_m9.m9l3 #define m9_l4 m_u.m_m9.m9l4 #define m9_l5 m_u.m_m9.m9l5 #define m9_s1 m_u.m_m9.m9s1 #define m9_s2 m_u.m_m9.m9s2 #define m9_s3 m_u.m_m9.m9s3 #define m9_s4 m_u.m_m9.m9s4 #define m10_i1 m_u.m_m10.m10i1 #define m10_i2 m_u.m_m10.m10i2 #define m10_i3 m_u.m_m10.m10i3 #define m10_i4 m_u.m_m10.m10i4 #define m10_l1 m_u.m_m10.m10l1 #define m10_l2 m_u.m_m10.m10l2 #define m10_l3 m_u.m_m10.m10l3 /*==========================================================================* * Minix run-time system (IPC). * *==========================================================================*/ /* Datastructure for asynchronous sends */ typedef struct asynmsg { unsigned flags; endpoint_t dst; int result; message msg; } asynmsg_t; /* Defines for flags field */ #define AMF_EMPTY 000 /* slot is not inuse */ #define AMF_VALID 001 /* slot contains message */ #define AMF_DONE 002 /* Kernel has processed the message. The * result is stored in 'result' */ #define AMF_NOTIFY 004 /* Send a notification when AMF_DONE is set */ #define AMF_NOREPLY 010 /* Not a reply message for a SENDREC */ #define AMF_NOTIFY_ERR 020 /* Send a notification when AMF_DONE is set and * delivery of the message failed */ int _send_orig(endpoint_t dest, message *m_ptr); int _receive_orig(endpoint_t src, message *m_ptr, int *status_ptr); int _sendrec_orig(endpoint_t src_dest, message *m_ptr); int _sendnb_orig(endpoint_t dest, message *m_ptr); int _notify_orig(endpoint_t dest); int _senda_orig(asynmsg_t *table, size_t count); int _do_kernel_call_orig(message *m_ptr); int _minix_kernel_info_struct(struct minix_kerninfo **); /* Hide names to avoid name space pollution. */ #define notify _notify #define sendrec _sendrec #define receive _receive #define receivenb _receivenb #define send _send #define sendnb _sendnb #define senda _senda struct minix_ipcvecs { int (*send_ptr)(endpoint_t dest, message *m_ptr); int (*receive_ptr)(endpoint_t src, message *m_ptr, int *st); int (*sendrec_ptr)(endpoint_t src_dest, message *m_ptr); int (*sendnb_ptr)(endpoint_t dest, message *m_ptr); int (*notify_ptr)(endpoint_t dest); int (*do_kernel_call_ptr)(message *m_ptr); int (*senda_ptr)(asynmsg_t *table, size_t count); }; /* kernel-set IPC vectors retrieved by a constructor in libc/sys-minix/init.c */ extern struct minix_ipcvecs _minix_ipcvecs; static inline int _send(endpoint_t dest, message *m_ptr) { return _minix_ipcvecs.send_ptr(dest, m_ptr); } static inline int _receive(endpoint_t src, message *m_ptr, int *st) { return _minix_ipcvecs.receive_ptr(src, m_ptr, st); } static inline int _sendrec(endpoint_t src_dest, message *m_ptr) { return _minix_ipcvecs.sendrec_ptr(src_dest, m_ptr); } static inline int _sendnb(endpoint_t dest, message *m_ptr) { return _minix_ipcvecs.send_ptr(dest, m_ptr); } static inline int _notify(endpoint_t dest) { return _minix_ipcvecs.notify_ptr(dest); } static inline int do_kernel_call(message *m_ptr) { return _minix_ipcvecs.do_kernel_call_ptr(m_ptr); } static inline int _senda(asynmsg_t *table, size_t count) { return _minix_ipcvecs.senda_ptr(table, count); } #endif /* _IPC_H */