minix/kernel/ipc.h

#ifndef IPC_H
#define IPC_H

/* This header file defines constants for MINIX inter-process communication.
 * These definitions are used in the file proc.c.
 */
#include <minix/com.h>

/* Masks and flags for system calls. */
#define NON_BLOCKING    0x0080  /* do not block if target not ready */

/* System call numbers that are passed when trapping to the kernel. */
#define SEND		   1	/* blocking send */
#define RECEIVE		   2	/* blocking receive */
#define SENDREC	 	   3  	/* SEND + RECEIVE */
#define NOTIFY		   4	/* asynchronous notify */
#define SENDNB             5    /* nonblocking send */
#define SENDA		   16	/* asynchronous send */

#define WILLRECEIVE(target, source_ep) \
  ((RTS_ISSET(target, RTS_RECEIVING) && !RTS_ISSET(target, RTS_SENDING)) &&	\
    (target->p_getfrom_e == ANY || target->p_getfrom_e == source_ep))


#endif /* IPC_H */
Reorganized system call library; uses separate file per call now. New configuration header file to include/ exclude functionality. Extracted privileged features from struct proc and create new struct priv. Renamed various system calls for readability. 2005-07-14 17:12:12 +02:00			`#ifndef IPC_H`
			`#define IPC_H`

Miscellaneous clean ups and fixes to the kernel. Support for FLOPPY in boot image. (Set controller=fd at boot monitor.) Moved major device numbers to <minix/dmap.h> (maybe rename to dev.h?) 2005-08-04 11:26:36 +02:00			`/* This header file defines constants for MINIX inter-process communication.`
			`* These definitions are used in the file proc.c.`
			`*/`
Kernel changes: - reinstalled priority changing, now in sched() and unready() - reinstalled check on message buffer in sys_call() - reinstalled check in send masks in sys_call() - changed do_fork() to get new privilege structure for SYS_PROCs - removed some processes from boot image---will be dynamically started later 2005-07-26 14:48:34 +02:00			`#include <minix/com.h>`

Created ECHO system call for testing purposes. Furthermore, a quick way to get one's own process number. 2005-05-27 15:57:00 +02:00			`/* Masks and flags for system calls. */`
Cleanup. 2007-04-23 15:44:56 +02:00			`#define NON_BLOCKING 0x0080 /* do not block if target not ready */`
Created ECHO system call for testing purposes. Furthermore, a quick way to get one's own process number. 2005-05-27 15:57:00 +02:00
Cleanup. 2007-04-23 15:44:56 +02:00			`/* System call numbers that are passed when trapping to the kernel. */`
			`#define SEND 1 /* blocking send */`
			`#define RECEIVE 2 /* blocking receive */`
			`#define SENDREC 3 /* SEND + RECEIVE */`
			`#define NOTIFY 4 /* asynchronous notify */`
Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized. 2008-11-19 13:26:10 +01:00			`#define SENDNB 5 /* nonblocking send */`
Cleanup. 2007-04-23 15:44:56 +02:00			`#define SENDA 16 /* asynchronous send */`
Kernel changes: - reinstalled priority changing, now in sched() and unready() - reinstalled check on message buffer in sys_call() - reinstalled check in send masks in sys_call() - changed do_fork() to get new privilege structure for SYS_PROCs - removed some processes from boot image---will be dynamically started later 2005-07-26 14:48:34 +02:00
Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized. 2008-11-19 13:26:10 +01:00			`#define WILLRECEIVE(target, source_ep) \`
All macros defining rts flags are prefixed with RTS_ - macros used with RTS_SET group of macros to define struct proc p_rts_flags are now prefixed with RTS_ to make things clear 2009-11-10 10:11:13 +01:00			`((RTS_ISSET(target, RTS_RECEIVING) && !RTS_ISSET(target, RTS_SENDING)) && \`
Basic VM and other minor improvements. Not complete, probably not fully debugged or optimized. 2008-11-19 13:26:10 +01:00			`(target->p_getfrom_e == ANY \|\| target->p_getfrom_e == source_ep))`


Reorganized system call library; uses separate file per call now. New configuration header file to include/ exclude functionality. Extracted privileged features from struct proc and create new struct priv. Renamed various system calls for readability. 2005-07-14 17:12:12 +02:00			`#endif /* IPC_H */`