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Merge pull request #3267 from thinkyhead/rc_command_args_null_oooops

Browse Source 
Cleanup, simplification of command dispatcher code
master
Scott Lahteine 9 years ago
parent 4b697938e6 0b8ef5eba6
commit e0ab06cfae
3 changed files with 46 additions and 37 deletions
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3
Marlin/Marlin.h
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@ -109,7 +109,6 @@ void serial_echopair_P(const char* s_P, float v);
void serial_echopair_P(const char* s_P, double v);
void serial_echopair_P(const char* s_P, unsigned long v);
// Things to write to serial from Program memory. Saves 400 to 2k of RAM.
FORCE_INLINE void serialprintPGM(const char* str) {
char ch;
@ -119,8 +118,6 @@ FORCE_INLINE void serialprintPGM(const char* str) {
}
}
void get_command();
void idle(
#if ENABLED(FILAMENTCHANGEENABLE)
bool no_stepper_sleep=false // pass true to keep steppers from disabling on timeout

78
Marlin/Marlin_main.cpp
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@ -462,6 +462,7 @@ static bool send_ok[BUFSIZE];
* ***************************************************************************
*/
void get_available_commands();
void process_next_command();
void plan_arc(float target[NUM_AXIS], float* offset, uint8_t clockwise);
@ -804,7 +805,7 @@ void setup() {
* - Call LCD update
*/
void loop() {
if (commands_in_queue < BUFSIZE) get_command();
if (commands_in_queue < BUFSIZE) get_available_commands();
#if ENABLED(SDSUPPORT)
card.checkautostart(false);
@ -856,24 +857,16 @@ void gcode_line_error(const char* err, bool doFlush = true) {
serial_count = 0;
}
/**
* Add to the circular command queue the next command from:
* - The command-injection queue (queued_commands_P)
* - The active serial input (usually USB)
* - The SD card file being actively printed
*/
void get_command() {
inline void get_serial_commands() {
static char serial_line_buffer[MAX_CMD_SIZE];
static boolean serial_comment_mode = false;
if (drain_queued_commands_P()) return; // priority is given to non-serial commands
// If the command buffer is empty for too long,
// send "wait" to indicate Marlin is still waiting.
#if defined(NO_TIMEOUTS) && NO_TIMEOUTS > 0
static millis_t last_command_time = 0;
millis_t ms = millis();
if (!MYSERIAL.available() && commands_in_queue == 0 && ms - last_command_time > NO_TIMEOUTS) {
if (commands_in_queue == 0 && !MYSERIAL.available() && ms > last_command_time + NO_TIMEOUTS) {
SERIAL_ECHOLNPGM(MSG_WAIT);
last_command_time = ms;
}
@ -893,7 +886,7 @@ void get_command() {
serial_comment_mode = false; // end of line == end of comment
if (!serial_count) return; // empty lines just exit
if (!serial_count) continue; // skip empty lines
serial_line_buffer[serial_count] = 0; // terminate string
serial_count = 0; //reset buffer
@ -978,7 +971,7 @@ void get_command() {
if (MYSERIAL.available() > 0) {
// if we have one more character, copy it over
serial_char = MYSERIAL.read();
serial_line_buffer[serial_count++] = serial_char;
if (!serial_comment_mode) serial_line_buffer[serial_count++] = serial_char;
}
// otherwise do nothing
}
@ -988,9 +981,11 @@ void get_command() {
}
} // queue has space, serial has data
}
#if ENABLED(SDSUPPORT)
#if ENABLED(SDSUPPORT)
inline void get_sdcard_commands() {
static bool stop_buffering = false,
sd_comment_mode = false;
@ -1050,8 +1045,26 @@ void get_command() {
if (!sd_comment_mode) command_queue[cmd_queue_index_w][sd_count++] = sd_char;
}
}
}
#endif // SDSUPPORT
/**
* Add to the circular command queue the next command from:
* - The command-injection queue (queued_commands_P)
* - The active serial input (usually USB)
* - The SD card file being actively printed
*/
void get_available_commands() {
// if any immediate commands remain, don't get other commands yet
if (drain_queued_commands_P()) return;
get_serial_commands();
#endif // SDSUPPORT
#if ENABLED(SDSUPPORT)
get_sdcard_commands();
#endif
}
bool code_has_value() {
@ -1060,7 +1073,7 @@ bool code_has_value() {
while (c == ' ') c = seen_pointer[++i];
if (c == '-' || c == '+') c = seen_pointer[++i];
if (c == '.') c = seen_pointer[++i];
return (c >= '0' && c <= '9');
return NUMERIC(c);
}
float code_value() {
@ -6066,9 +6079,9 @@ void process_next_command() {
// - Bypass N[-0-9][0-9]*[ ]*
// - Overwrite * with nul to mark the end
while (*current_command == ' ') ++current_command;
if (*current_command == 'N' && ((current_command[1] >= '0' && current_command[1] <= '9') || current_command[1] == '-')) {
if (*current_command == 'N' && NUMERIC_SIGNED(current_command[1])) {
current_command += 2; // skip N[-0-9]
while (*current_command >= '0' && *current_command <= '9') ++current_command; // skip [0-9]*
while (NUMERIC(*current_command)) ++current_command; // skip [0-9]*
while (*current_command == ' ') ++current_command; // skip [ ]*
}
char* starpos = strchr(current_command, '*'); // * should always be the last parameter
@ -6082,25 +6095,22 @@ void process_next_command() {
// Skip spaces to get the numeric part
while (*cmd_ptr == ' ') cmd_ptr++;
// The code must have a numeric value
bool code_is_good = false;
uint16_t codenum = 0; // define ahead of goto
int codenum = 0; // define ahead of goto
// Bail early if there's no code
bool code_is_good = NUMERIC(*cmd_ptr);
if (!code_is_good) goto ExitUnknownCommand;
// Get and skip the code number
while (*cmd_ptr >= '0' && *cmd_ptr <= '9') {
code_is_good = true;
codenum = codenum * 10 + *cmd_ptr - '0';
do {
codenum = (codenum * 10) + (*cmd_ptr - '0');
cmd_ptr++;
}
// Bail early if there's no code
if (!code_is_good) goto ExitUnknownCommand;
} while (NUMERIC(*cmd_ptr));
// Skip all spaces to get to the first argument
// Skip all spaces to get to the first argument, or nul
while (*cmd_ptr == ' ') cmd_ptr++;
// The command's arguments start here, for sure!
// The command's arguments (if any) start here, for sure!
current_command_args = cmd_ptr;
KEEPALIVE_STATE(IN_HANDLER);
@ -6668,7 +6678,7 @@ void ok_to_send() {
if (*p == 'N') {
SERIAL_PROTOCOL(' ');
SERIAL_ECHO(*p++);
while ((*p >= '0' && *p <= '9') || *p == '-')
while (NUMERIC_SIGNED(*p))
SERIAL_ECHO(*p++);
}
SERIAL_PROTOCOLPGM(" P"); SERIAL_PROTOCOL(int(BLOCK_BUFFER_SIZE - movesplanned() - 1));
@ -7365,7 +7375,7 @@ void manage_inactivity(bool ignore_stepper_queue/*=false*/) {
filrunout();
#endif
if (commands_in_queue < BUFSIZE) get_command();
if (commands_in_queue < BUFSIZE) get_available_commands();
millis_t ms = millis();

2
Marlin/macros.h
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@ -51,6 +51,8 @@
#define ENABLED(b) _CAT(SWITCH_ENABLED_, b)
#define DISABLED(b) (!_CAT(SWITCH_ENABLED_, b))
#define NUMERIC(a) ((a) >= '0' && '9' >= (a))
#define NUMERIC_SIGNED(a) (NUMERIC(a) || (a) == '-')
#define COUNT(a) (sizeof(a)/sizeof(*a))
#endif //__MACROS_H

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