along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+#ifndef SERIAL_H
+#define SERIAL_H
+
/* Terminal state pointer. This is specific to each type of interface. */
typedef PTR serial_ttystate;
void (*close) PARAMS ((serial_t));
int (*readchar) PARAMS ((serial_t, int timeout));
int (*write) PARAMS ((serial_t, const char *str, int len));
+ int (*flush_output) PARAMS ((serial_t));
+ int (*flush_input) PARAMS ((serial_t));
+ int (*send_break) PARAMS ((serial_t));
void (*go_raw) PARAMS ((serial_t));
serial_ttystate (*get_tty_state) PARAMS ((serial_t));
int (*set_tty_state) PARAMS ((serial_t, serial_ttystate));
+ void (*print_tty_state) PARAMS ((serial_t, serial_ttystate));
+ int (*noflush_set_tty_state)
+ PARAMS ((serial_t, serial_ttystate, serial_ttystate));
int (*setbaudrate) PARAMS ((serial_t, int rate));
+ int (*set_process_group) PARAMS ((serial_t, serial_ttystate, int));
};
/* Add a new serial interface to the interface list */
#define SERIAL_FDOPEN(FD) serial_fdopen(FD)
+/* Flush pending output. Might also flush input (if this system can't flush
+ only output). */
+
+#define SERIAL_FLUSH_OUTPUT(SERIAL_T) \
+ ((SERIAL_T)->ops->flush_output((SERIAL_T)))
+
+/* Flush pending input. Might also flush output (if this system can't flush
+ only input). */
+
+#define SERIAL_FLUSH_INPUT(SERIAL_T)\
+ ((*(SERIAL_T)->ops->flush_input) ((SERIAL_T)))
+
+/* Send a break between 0.25 and 0.5 seconds long. */
+
+#define SERIAL_SEND_BREAK(SERIAL_T) \
+ ((*(SERIAL_T)->ops->send_break) (SERIAL_T))
+
/* Turn the port into raw mode. */
#define SERIAL_RAW(SERIAL_T) (SERIAL_T)->ops->go_raw((SERIAL_T))
+/* Return a pointer to a newly malloc'd ttystate containing the state
+ of the tty. */
#define SERIAL_GET_TTY_STATE(SERIAL_T) (SERIAL_T)->ops->get_tty_state((SERIAL_T))
+/* Set the state of the tty to TTYSTATE. The change is immediate.
+ When changing to or from raw mode, input might be discarded. */
#define SERIAL_SET_TTY_STATE(SERIAL_T, TTYSTATE) (SERIAL_T)->ops->set_tty_state((SERIAL_T), (TTYSTATE))
-/* Read one char from the serial device with TIMEOUT seconds timeout.
- Returns char if ok, else one of the following codes. Note that all
- error codes are guaranteed to be < 0. */
+/* printf_filtered a user-comprehensible description of ttystate. */
+#define SERIAL_PRINT_TTY_STATE(SERIAL_T, TTYSTATE) \
+ ((*((SERIAL_T)->ops->print_tty_state)) ((SERIAL_T), (TTYSTATE)))
+
+/* Set the tty state to NEW_TTYSTATE, where OLD_TTYSTATE is the
+ current state (generally obtained from a recent call to
+ SERIAL_GET_TTY_STATE), but be careful not to discard any input.
+ This means that we never switch in or out of raw mode, even
+ if NEW_TTYSTATE specifies a switch. */
+#define SERIAL_NOFLUSH_SET_TTY_STATE(SERIAL_T, NEW_TTYSTATE, OLD_TTYSTATE) \
+ ((*((SERIAL_T)->ops->noflush_set_tty_state)) \
+ ((SERIAL_T), (NEW_TTYSTATE), (OLD_TTYSTATE)))
+
+/* Read one char from the serial device with TIMEOUT seconds to wait
+ or -1 to wait forever. Use timeout of 0 to effect a poll. Returns
+ char if ok, else one of the following codes. Note that all error
+ codes are guaranteed to be < 0. */
#define SERIAL_ERROR -1 /* General error, see errno for details */
#define SERIAL_TIMEOUT -2
#define SERIAL_SETBAUDRATE(SERIAL_T, RATE) ((SERIAL_T)->ops->setbaudrate((SERIAL_T), RATE))
-/* Write LEN chars from STRING to the port SERIAL_T. Returns 0 for success,
- -1 for failure. */
+/* Write LEN chars from STRING to the port SERIAL_T. Returns 0 for
+ success, non-zero for failure. */
#define SERIAL_WRITE(SERIAL_T, STRING, LEN) ((SERIAL_T)->ops->write((SERIAL_T), STRING, LEN))
#define SERIAL_CLOSE(SERIAL_T) serial_close(SERIAL_T)
+/* Destroy SERIAL_T without doing the rest of the stuff that SERIAL_CLOSE
+ does. */
+
+#define SERIAL_UN_FDOPEN(SERIAL_T) (free (SERIAL_T))
+
+/* Set the process group saved in TTYSTATE to GROUP. This just modifies
+ the ttystate setting; need to call SERIAL_SET_TTY_STATE for this to
+ actually have any effect. If no job control, then don't do anything. */
+#define SERIAL_SET_PROCESS_GROUP(SERIAL_T, TTYSTATE, GROUP) \
+ ((*((SERIAL_T)->ops->set_process_group)) (SERIAL_T, TTYSTATE, GROUP))
+
+/* Do we have job control? Can be assumed to always be the same within
+ a given run of GDB. In ser-unix.c, ser-go32.c, etc. */
+extern int job_control;
+
+/* Set the process group of the caller to its own pid, or do nothing if
+ we lack job control. */
+extern int gdb_setpgid PARAMS ((void));
+
+#endif /* SERIAL_H */