#include <minix/com.h>
/* Masks and flags for system calls. */
-#define SYSCALL_FUNC 0x000F /* mask for system call function */
-#define SYSCALL_FLAGS 0x00F0 /* mask for system call flags */
-#define NON_BLOCKING 0x0010 /* do not block if target not ready */
+#define NON_BLOCKING 0x0080 /* do not block if target not ready */
-/* System call numbers that are passed when trapping to the kernel. The
- * numbers are carefully defined so that it can easily be seen (based on
- * the bits that are on) which checks should be done in sys_call().
- */
-#define SEND 1 /* 0001 : blocking send */
-#define RECEIVE 2 /* 0010 : blocking receive */
-#define SENDREC 3 /* 0011 : SEND + RECEIVE */
-#define NOTIFY 4 /* 0100 : nonblocking notify */
-#define ECHO 8 /* 1000 : echo a message */
-
-#define IPC_REQUEST 5 /* 0101 : blocking request */
-#define IPC_REPLY 6 /* 0110 : nonblocking reply */
-#define IPC_NOTIFY 7 /* 0111 : nonblocking notification */
-#define IPC_RECEIVE 9 /* 1001 : blocking receive */
+/* 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_PTR 0xBB /* 1011 1011 : validate message buffer */
-#define CHECK_DST 0x55 /* 0101 0101 : validate message destination */
-#define CHECK_DEADLOCK 0x93 /* 1001 0011 : check for deadlock */
+#define CHECK_DEADLOCK 0x03 /* 0000 0011 : check for deadlock */
#endif /* IPC_H */