ec24a0798c
The TTY driver now only notifies the IS server about function key event, but does not tell which keys are pressed. The IS servers queries the TTY driver to find out about this.
21 lines
889 B
C
21 lines
889 B
C
/* Masks and flags for system calls. */
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#define SYSCALL_FUNC 0x0F /* mask for system call function */
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#define SYSCALL_FLAGS 0xF0 /* mask for system call flags */
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#define NON_BLOCKING 0x10 /* prevent blocking, return error */
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#define FRESH_ANSWER 0x20 /* ignore pending notifications as answer */
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/* (default behaviour for SENDREC calls) */
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/* System calls (numbers passed when trapping to the kernel). */
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#define ECHO 0 /* function code for echoing messages */
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#define SEND 1 /* function code for sending messages */
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#define RECEIVE 2 /* function code for receiving messages */
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#define SENDREC 3 /* function code for SEND + RECEIVE */
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#define NOTIFY 4 /* function code for notifications */
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/* Call masks indicating which system calls a process can make. */
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#define EMPTY_CALL_MASK (0)
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#define USER_CALL_MASK (1 << SENDREC)
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#define SYSTEM_CALL_MASK (~0)
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