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 */

/* The following bit masks determine what checks that should be done. */
#define CHECK_DEADLOCK  0x03	/* 0000 0011 : check for deadlock */

#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 */`
			`#define SENDNB 5 /* nonblocking send */`
			`#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
Minor fixes and improvements for sys_call(). 2005-07-26 15:51:21 +02:00			`/* The following bit masks determine what checks that should be done. */`
Cleanup. 2007-04-23 15:44:56 +02:00			`#define CHECK_DEADLOCK 0x03 /* 0000 0011 : check for deadlock */`
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
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 */`