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Make message type ranges in com.h (eventually) unique

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David van Moolenbroek 2009-10-01 10:33:01 +00:00
parent a8ebc69c6e
commit f11f597777
1 changed files with 58 additions and 25 deletions
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83
include/minix/com.h
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@ -1,3 +1,29 @@
/* This file defines constants for use in message communication (mostly)
* between system processes.
*
* A number of protocol message request and response types are defined. For
* debugging purposes, each protocol is assigned its own unique number range.
* The following such message type ranges have been allocated:
*
* 1 - 0xFF POSIX requests (see callnr.h)
* 0x200 - 0x2FF Data link layer requests and responses
* 0x300 - 0x3FF Bus controller requests and responses
* 0x400 - 0x4FF Block and character device requests
* 0x500 - 0x5FF Block and character device responses
* 0x600 - 0x6FF Kernel calls to SYSTEM task
* 0x700 - 0x7FF Reincarnation Server (RS) requests
* 0x800 - 0x8FF Data Store (DS) requests
* 0x900 - 0x9FF Requests from PM to VFS, and responses
* (0xA00 - 0xAFF old TTY and LOG requests, being phased out)
* 0xA00 - 0xAFF Requests from VFS to file systems (see vfsif.h)
* 0xB00 - 0xBFF Requests from VM to VFS
* 0xC00 - 0xCFF Virtual Memory (VM) requests
* 0xD00 - 0xDFF IPC server requests
* 0x1000 - 0x10FF Notify messages
*
* Zero and negative values are widely used for OK and error responses.
*/
#ifndef _MINIX_COM_H #ifndef _MINIX_COM_H
#define _MINIX_COM_H #define _MINIX_COM_H
@ -215,8 +241,8 @@
#define NW_CANCEL CANCEL #define NW_CANCEL CANCEL
/* Base type for data link layer requests and responses. */ /* Base type for data link layer requests and responses. */
#define DL_RQ_BASE 0x800 #define DL_RQ_BASE 0x200
#define DL_RS_BASE 0x900 #define DL_RS_BASE 0x280
/* Message types for data link layer requests. */ /* Message types for data link layer requests. */
#define DL_WRITE (DL_RQ_BASE + 3) #define DL_WRITE (DL_RQ_BASE + 3)
@ -472,8 +498,6 @@
#define T_BOOTTIME m4_l3 /* Boottime in seconds (also for SYS_STIME) */ #define T_BOOTTIME m4_l3 /* Boottime in seconds (also for SYS_STIME) */
#define T_BOOT_TICKS m4_l5 /* number of clock ticks since boot time */ #define T_BOOT_TICKS m4_l5 /* number of clock ticks since boot time */
/* vm_map */ /* vm_map */
#define VM_MAP_ENDPT m4_l1 #define VM_MAP_ENDPT m4_l1
#define VM_MAP_MAPUNMAP m4_l2 #define VM_MAP_MAPUNMAP m4_l2
@ -697,31 +721,32 @@
* Messages used between PM and VFS * * Messages used between PM and VFS *
*===========================================================================*/ *===========================================================================*/
#define PM_BASE 0xE00 #define PM_RQ_BASE 0x900
#define PM_RS_BASE 0x980
/* Requests from PM to VFS */ /* Requests from PM to VFS */
#define PM_SETUID (PM_BASE + 1) /* Tell FS about the new user IDs */ #define PM_SETUID (PM_RQ_BASE + 1) /* Set new user ID */
#define PM_SETGID (PM_BASE + 2) /* Tell FS about the new group IDs */ #define PM_SETGID (PM_RQ_BASE + 2) /* Set group ID */
#define PM_SETSID (PM_BASE + 3) /* Tell FS about the session leader */ #define PM_SETSID (PM_RQ_BASE + 3) /* Set session leader */
#define PM_EXIT (PM_BASE + 4) /* Tell FS about the exiting process */ #define PM_EXIT (PM_RQ_BASE + 4) /* Process exits */
#define PM_DUMPCORE (PM_BASE + 5) /* Ask FS to generate a core dump */ #define PM_DUMPCORE (PM_RQ_BASE + 5) /* Process is to dump core */
#define PM_EXEC (PM_BASE + 6) /* Forward exec call to FS */ #define PM_EXEC (PM_RQ_BASE + 6) /* Forwarded exec call */
#define PM_FORK (PM_BASE + 7) /* Tell FS about the new process */ #define PM_FORK (PM_RQ_BASE + 7) /* Newly forked process */
#define PM_FORK_NB (PM_BASE + 8) /* Tell FS about the fork_nb call */ #define PM_FORK_NB (PM_RQ_BASE + 8) /* Non-blocking fork */
#define PM_UNPAUSE (PM_BASE + 9) /* interrupted process */ #define PM_UNPAUSE (PM_RQ_BASE + 9) /* Interrupt process call */
#define PM_REBOOT (PM_BASE + 10) /* Tell FS that we about to reboot */ #define PM_REBOOT (PM_RQ_BASE + 10) /* System reboot */
/* Replies from VFS to PM */ /* Replies from VFS to PM */
#define PM_SETUID_REPLY (PM_BASE + 21) #define PM_SETUID_REPLY (PM_RS_BASE + 21)
#define PM_SETGID_REPLY (PM_BASE + 22) #define PM_SETGID_REPLY (PM_RS_BASE + 22)
#define PM_SETSID_REPLY (PM_BASE + 23) #define PM_SETSID_REPLY (PM_RS_BASE + 23)
#define PM_EXIT_REPLY (PM_BASE + 24) #define PM_EXIT_REPLY (PM_RS_BASE + 24)
#define PM_CORE_REPLY (PM_BASE + 25) #define PM_CORE_REPLY (PM_RS_BASE + 25)
#define PM_EXEC_REPLY (PM_BASE + 26) #define PM_EXEC_REPLY (PM_RS_BASE + 26)
#define PM_FORK_REPLY (PM_BASE + 27) #define PM_FORK_REPLY (PM_RS_BASE + 27)
#define PM_FORK_NB_REPLY (PM_BASE + 28) #define PM_FORK_NB_REPLY (PM_RS_BASE + 28)
#define PM_UNPAUSE_REPLY (PM_BASE + 29) #define PM_UNPAUSE_REPLY (PM_RS_BASE + 29)
#define PM_REBOOT_REPLY (PM_BASE + 30) #define PM_REBOOT_REPLY (PM_RS_BASE + 30)
/* Standard parameters for all requests and replies, except PM_REBOOT */ /* Standard parameters for all requests and replies, except PM_REBOOT */
# define PM_PROC m1_i1 /* process */ # define PM_PROC m1_i1 /* process */
@ -766,10 +791,18 @@
#define EXC_RS_PROC m1_i1 /* process that needs to be restarted */ #define EXC_RS_PROC m1_i1 /* process that needs to be restarted */
#define EXC_RS_RESULT m1_i2 /* result of the exec */ #define EXC_RS_RESULT m1_i2 /* result of the exec */
/*===========================================================================*
* Messages used from VFS to file servers *
*===========================================================================*/
#define VFS_BASE 0xA00 /* Requests sent by VFS to filesystem #define VFS_BASE 0xA00 /* Requests sent by VFS to filesystem
* implementations. See <minix/vfsif.h> * implementations. See <minix/vfsif.h>
*/ */
/*===========================================================================*
* Messages used from VM to VFS *
*===========================================================================*/
/* Requests sent by VM to VFS, done on behalf of a user process. */ /* Requests sent by VM to VFS, done on behalf of a user process. */
#define VM_VFS_BASE 0xB00 #define VM_VFS_BASE 0xB00
#define VM_VFS_OPEN (VM_VFS_BASE+0) /* open() on behalf of user process. */ #define VM_VFS_OPEN (VM_VFS_BASE+0) /* open() on behalf of user process. */