404 lines
9.2 KiB
C
404 lines
9.2 KiB
C
#ifndef _IPC_H
|
|
#define _IPC_H
|
|
|
|
#include <minix/ipcconst.h>
|
|
#include <minix/type.h>
|
|
#include <minix/const.h>
|
|
#include <sys/signal.h>
|
|
|
|
/*==========================================================================*
|
|
* Types relating to messages. *
|
|
*==========================================================================*/
|
|
|
|
#define M1 1
|
|
#define M3 3
|
|
#define M4 4
|
|
#define M3_STRING 44 /* legacy m3_ca1 size (must not be changed) */
|
|
#define M3_LONG_STRING 44 /* current m3_ca1 size (may be increased) */
|
|
|
|
typedef struct {
|
|
uint64_t m1ull1;
|
|
int m1i1, m1i2, m1i3;
|
|
char *m1p1, *m1p2, *m1p3, *m1p4;
|
|
uint8_t padding[20];
|
|
} mess_1;
|
|
_ASSERT_MSG_SIZE(mess_1);
|
|
|
|
typedef struct {
|
|
int64_t m2ll1;
|
|
int m2i1, m2i2, m2i3;
|
|
long m2l1, m2l2;
|
|
char *m2p1;
|
|
sigset_t sigset;
|
|
short m2s1;
|
|
uint8_t padding[6];
|
|
} mess_2;
|
|
_ASSERT_MSG_SIZE(mess_2);
|
|
|
|
typedef struct {
|
|
int m3i1, m3i2;
|
|
char *m3p1;
|
|
char m3ca1[M3_LONG_STRING];
|
|
} mess_3;
|
|
_ASSERT_MSG_SIZE(mess_3);
|
|
|
|
typedef struct {
|
|
int64_t m4ll1;
|
|
long m4l1, m4l2, m4l3, m4l4, m4l5;
|
|
uint8_t padding[28];
|
|
} mess_4;
|
|
_ASSERT_MSG_SIZE(mess_4);
|
|
|
|
typedef struct {
|
|
short m5s1, m5s2;
|
|
int m5i1, m5i2;
|
|
long m5l1, m5l2, m5l3;
|
|
uint8_t padding[32];
|
|
} mess_5;
|
|
_ASSERT_MSG_SIZE(mess_5);
|
|
|
|
typedef struct {
|
|
long m6l1, m6l2, m6l3;
|
|
short m6s1, m6s2, m6s3;
|
|
char m6c1, m6c2;
|
|
char *m6p1, *m6p2;
|
|
uint8_t padding[28];
|
|
} mess_6;
|
|
_ASSERT_MSG_SIZE(mess_6);
|
|
|
|
typedef struct {
|
|
int m7i1, m7i2, m7i3, m7i4, m7i5;
|
|
char *m7p1, *m7p2;
|
|
uint8_t padding[28];
|
|
} mess_7;
|
|
_ASSERT_MSG_SIZE(mess_7);
|
|
|
|
typedef struct {
|
|
int m8i1, m8i2;
|
|
char *m8p1, *m8p2, *m8p3, *m8p4;
|
|
uint8_t padding[32];
|
|
} mess_8;
|
|
_ASSERT_MSG_SIZE(mess_8);
|
|
|
|
typedef struct {
|
|
uint64_t m9ull1;
|
|
long m9l1, m9l2, m9l3, m9l4, m9l5;
|
|
short m9s1, m9s2, m9s3, m9s4;
|
|
uint8_t padding[20];
|
|
} mess_9;
|
|
_ASSERT_MSG_SIZE(mess_9);
|
|
|
|
typedef struct {
|
|
int m10i1, m10i2, m10i3, m10i4;
|
|
long m10l1, m10l2, m10l3;
|
|
uint8_t padding[28];
|
|
} mess_10;
|
|
_ASSERT_MSG_SIZE(mess_10);
|
|
|
|
typedef struct {
|
|
int m11i1;
|
|
short m11s1, m11s2, m11s3, m11s4;
|
|
char *m11p1, *m11p2, *m11p3, *m11p4;
|
|
uint8_t padding[28];
|
|
} mess_11;
|
|
_ASSERT_MSG_SIZE(mess_11);
|
|
|
|
typedef struct {
|
|
off_t offset;
|
|
void *addr;
|
|
size_t len;
|
|
int prot;
|
|
int flags;
|
|
int fd;
|
|
endpoint_t forwhom;
|
|
void *retaddr;
|
|
u32_t padding[5];
|
|
} mess_mmap;
|
|
_ASSERT_MSG_SIZE(mess_mmap);
|
|
|
|
typedef struct {
|
|
u64_t timestamp; /* valid for every notify msg */
|
|
u64_t interrupts; /* raised interrupts; valid if from HARDWARE */
|
|
sigset_t sigset; /* raised signals; valid if from SYSTEM */
|
|
uint8_t padding[24];
|
|
} mess_notify;
|
|
_ASSERT_MSG_SIZE(mess_notify);
|
|
|
|
/* For SYS_GETKSIG, _ENDKSIG, _KILL, _SIGSEND, _SIGRETURN. */
|
|
typedef struct {
|
|
sigset_t map; /* used to pass signal bit map */
|
|
endpoint_t endpt; /* process number for inform */
|
|
int sig; /* signal number to send */
|
|
void *sigctx; /* pointer to signal context */
|
|
uint8_t padding[28];
|
|
} mess_sigcalls;
|
|
_ASSERT_MSG_SIZE(mess_sigcalls);
|
|
|
|
typedef struct {
|
|
time_t atime;
|
|
time_t mtime;
|
|
long ansec;
|
|
long mnsec;
|
|
size_t len;
|
|
char *name;
|
|
int fd;
|
|
int flags;
|
|
uint8_t padding[16];
|
|
} mess_vfs_utimens;
|
|
_ASSERT_MSG_SIZE(mess_vfs_utimens);
|
|
|
|
typedef struct {
|
|
off_t offset;
|
|
dev_t dev;
|
|
ino_t ino;
|
|
endpoint_t who;
|
|
u32_t vaddr;
|
|
u32_t len;
|
|
u32_t flags;
|
|
u32_t fd;
|
|
u16_t clearend;
|
|
uint8_t padding[8];
|
|
} mess_vm_vfs_mmap;
|
|
_ASSERT_MSG_SIZE(mess_vm_vfs_mmap);
|
|
|
|
typedef struct {
|
|
dev_t dev; /* 64bits long. */
|
|
off_t dev_offset;
|
|
off_t ino_offset;
|
|
ino_t ino;
|
|
void *block;
|
|
u32_t *flags_ptr;
|
|
u8_t pages;
|
|
u8_t flags;
|
|
uint8_t padding[12];
|
|
} mess_vmmcp;
|
|
_ASSERT_MSG_SIZE(mess_vmmcp);
|
|
|
|
typedef struct {
|
|
void *addr;
|
|
u8_t flags;
|
|
uint8_t padding[51];
|
|
} mess_vmmcp_reply;
|
|
_ASSERT_MSG_SIZE(mess_vmmcp_reply);
|
|
|
|
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;
|
|
mess_11 m_m11;
|
|
mess_mmap m_mmap;
|
|
mess_notify m_notify;
|
|
mess_sigcalls m_sigcalls;
|
|
mess_vfs_utimens m_vfs_utimens;
|
|
mess_vm_vfs_mmap m_vm_vfs_mmap;
|
|
mess_vmmcp m_vmmcp;
|
|
mess_vmmcp_reply m_vmmcp_reply;
|
|
u8_t size[56]; /* message payload may have 56 bytes at most */
|
|
};
|
|
} message __aligned(16);
|
|
|
|
/* Ensure the complete union respects the IPC assumptions. */
|
|
typedef int _ASSERT_message[/* CONSTCOND */sizeof(message) == 64 ? 1 : -1];
|
|
|
|
/* The following defines provide names for useful members. */
|
|
#define m1_i1 m_m1.m1i1
|
|
#define m1_i2 m_m1.m1i2
|
|
#define m1_i3 m_m1.m1i3
|
|
#define m1_p1 m_m1.m1p1
|
|
#define m1_p2 m_m1.m1p2
|
|
#define m1_p3 m_m1.m1p3
|
|
#define m1_p4 m_m1.m1p4
|
|
#define m1_ull1 m_m1.m1ull1
|
|
|
|
#define m2_ll1 m_m2.m2ll1
|
|
#define m2_i1 m_m2.m2i1
|
|
#define m2_i2 m_m2.m2i2
|
|
#define m2_i3 m_m2.m2i3
|
|
#define m2_l1 m_m2.m2l1
|
|
#define m2_l2 m_m2.m2l2
|
|
#define m2_p1 m_m2.m2p1
|
|
#define m2_sigset m_m2.sigset
|
|
|
|
#define m2_s1 m_m2.m2s1
|
|
|
|
#define m3_i1 m_m3.m3i1
|
|
#define m3_i2 m_m3.m3i2
|
|
#define m3_p1 m_m3.m3p1
|
|
#define m3_ca1 m_m3.m3ca1
|
|
|
|
#define m4_ll1 m_m4.m4ll1
|
|
#define m4_l1 m_m4.m4l1
|
|
#define m4_l2 m_m4.m4l2
|
|
#define m4_l3 m_m4.m4l3
|
|
#define m4_l4 m_m4.m4l4
|
|
#define m4_l5 m_m4.m4l5
|
|
|
|
#define m5_s1 m_m5.m5s1
|
|
#define m5_s2 m_m5.m5s2
|
|
#define m5_i1 m_m5.m5i1
|
|
#define m5_i2 m_m5.m5i2
|
|
#define m5_l1 m_m5.m5l1
|
|
#define m5_l2 m_m5.m5l2
|
|
#define m5_l3 m_m5.m5l3
|
|
|
|
#define m6_l1 m_m6.m6l1
|
|
#define m6_l2 m_m6.m6l2
|
|
#define m6_l3 m_m6.m6l3
|
|
#define m6_s1 m_m6.m6s1
|
|
#define m6_s2 m_m6.m6s2
|
|
#define m6_s3 m_m6.m6s3
|
|
#define m6_c1 m_m6.m6c1
|
|
#define m6_c2 m_m6.m6c2
|
|
#define m6_p1 m_m6.m6p1
|
|
#define m6_p2 m_m6.m6p2
|
|
|
|
#define m7_i1 m_m7.m7i1
|
|
#define m7_i2 m_m7.m7i2
|
|
#define m7_i3 m_m7.m7i3
|
|
#define m7_i4 m_m7.m7i4
|
|
#define m7_i5 m_m7.m7i5
|
|
#define m7_p1 m_m7.m7p1
|
|
#define m7_p2 m_m7.m7p2
|
|
|
|
#define m8_i1 m_m8.m8i1
|
|
#define m8_i2 m_m8.m8i2
|
|
#define m8_p1 m_m8.m8p1
|
|
#define m8_p2 m_m8.m8p2
|
|
#define m8_p3 m_m8.m8p3
|
|
#define m8_p4 m_m8.m8p4
|
|
|
|
#define m9_l1 m_m9.m9l1
|
|
#define m9_l2 m_m9.m9l2
|
|
#define m9_l3 m_m9.m9l3
|
|
#define m9_l4 m_m9.m9l4
|
|
#define m9_l5 m_m9.m9l5
|
|
#define m9_s1 m_m9.m9s1
|
|
#define m9_s2 m_m9.m9s2
|
|
#define m9_s3 m_m9.m9s3
|
|
#define m9_s4 m_m9.m9s4
|
|
#define m9_ull1 m_m9.m9ull1
|
|
|
|
#define m10_i1 m_m10.m10i1
|
|
#define m10_i2 m_m10.m10i2
|
|
#define m10_i3 m_m10.m10i3
|
|
#define m10_i4 m_m10.m10i4
|
|
#define m10_l1 m_m10.m10l1
|
|
#define m10_l2 m_m10.m10l2
|
|
#define m10_l3 m_m10.m10l3
|
|
|
|
#define m11_i1 m_m11.m11i1
|
|
#define m11_s1 m_m11.m11s1
|
|
#define m11_s2 m_m11.m11s2
|
|
#define m11_s3 m_m11.m11s3
|
|
#define m11_s4 m_m11.m11s4
|
|
#define m11_p1 m_m11.m11p1
|
|
#define m11_p2 m_m11.m11p2
|
|
#define m11_p3 m_m11.m11p3
|
|
#define m11_p4 m_m11.m11p4
|
|
|
|
/*==========================================================================*
|
|
* 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 _ipc_send_intr(endpoint_t dest, message *m_ptr);
|
|
int _ipc_receive_intr(endpoint_t src, message *m_ptr, int *status_ptr);
|
|
int _ipc_sendrec_intr(endpoint_t src_dest, message *m_ptr);
|
|
int _ipc_sendnb_intr(endpoint_t dest, message *m_ptr);
|
|
int _ipc_notify_intr(endpoint_t dest);
|
|
int _ipc_senda_intr(asynmsg_t *table, size_t count);
|
|
|
|
int _do_kernel_call_intr(message *m_ptr);
|
|
|
|
int get_minix_kerninfo(struct minix_kerninfo **);
|
|
|
|
/* Hide names to avoid name space pollution. */
|
|
#define ipc_notify _ipc_notify
|
|
#define ipc_sendrec _ipc_sendrec
|
|
#define ipc_receive _ipc_receive
|
|
#define ipc_receivenb _ipc_receivenb
|
|
#define ipc_send _ipc_send
|
|
#define ipc_sendnb _ipc_sendnb
|
|
#define ipc_senda _ipc_senda
|
|
|
|
#define do_kernel_call _do_kernel_call
|
|
|
|
struct minix_ipcvecs {
|
|
int (*send)(endpoint_t dest, message *m_ptr);
|
|
int (*receive)(endpoint_t src, message *m_ptr, int *st);
|
|
int (*sendrec)(endpoint_t src_dest, message *m_ptr);
|
|
int (*sendnb)(endpoint_t dest, message *m_ptr);
|
|
int (*notify)(endpoint_t dest);
|
|
int (*do_kernel_call)(message *m_ptr);
|
|
int (*senda)(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 _ipc_send(endpoint_t dest, message *m_ptr)
|
|
{
|
|
return _minix_ipcvecs.send(dest, m_ptr);
|
|
}
|
|
|
|
static inline int _ipc_receive(endpoint_t src, message *m_ptr, int *st)
|
|
{
|
|
return _minix_ipcvecs.receive(src, m_ptr, st);
|
|
}
|
|
|
|
static inline int _ipc_sendrec(endpoint_t src_dest, message *m_ptr)
|
|
{
|
|
return _minix_ipcvecs.sendrec(src_dest, m_ptr);
|
|
}
|
|
|
|
static inline int _ipc_sendnb(endpoint_t dest, message *m_ptr)
|
|
{
|
|
return _minix_ipcvecs.sendnb(dest, m_ptr);
|
|
}
|
|
|
|
static inline int _ipc_notify(endpoint_t dest)
|
|
{
|
|
return _minix_ipcvecs.notify(dest);
|
|
}
|
|
|
|
static inline int _do_kernel_call(message *m_ptr)
|
|
{
|
|
return _minix_ipcvecs.do_kernel_call(m_ptr);
|
|
}
|
|
|
|
static inline int _ipc_senda(asynmsg_t *table, size_t count)
|
|
{
|
|
return _minix_ipcvecs.senda(table, count);
|
|
}
|
|
|
|
#endif /* _IPC_H */
|