15 lines
719 B
C
15 lines
719 B
C
/* Masks and flags for system calls. */
|
|
#define SYSCALL_FUNC 0x0F /* mask for system call function */
|
|
#define SYSCALL_FLAGS 0xF0 /* mask for system call flags */
|
|
#define NON_BLOCKING 0x10 /* prevent blocking, return error */
|
|
#define FRESH_ANSWER 0x20 /* ignore pending notifications as answer */
|
|
/* (default behaviour for SENDREC calls) */
|
|
|
|
/* System calls (numbers passed when trapping to the kernel) */
|
|
#define ECHO 0 /* function code for echoing messages */
|
|
#define SEND 1 /* function code for sending messages */
|
|
#define RECEIVE 2 /* function code for receiving messages */
|
|
#define SENDREC 3 /* function code for SEND + RECEIVE */
|
|
#define NOTIFY 4 /* function code for notifications */
|
|
|