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drain_queued_commands_P now returns true if there are more

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This commit is contained in:
Scott Lahteine 2016-03-18 17:37:31 -07:00
parent 8fe7420310
commit 80277cc9c8
1 changed files with 19 additions and 20 deletions
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29
Marlin/Marlin_main.cpp
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@ -463,29 +463,28 @@ extern "C" {
#endif //!SDSUPPORT
/**
* Inject the next command from the command queue, when possible
* Return false only if no command was pending
* Inject the next "immediate" command, when possible.
* Return true if any immediate commands remain to inject.
*/
static bool drain_queued_commands_P() {
if (!queued_commands_P) return false;
// Get the next 30 chars from the sequence of gcodes to run
char cmd[30];
strncpy_P(cmd, queued_commands_P, sizeof(cmd) - 1);
cmd[sizeof(cmd) - 1] = '\0';
// Look for the end of line, or the end of sequence
if (queued_commands_P != NULL) {
// Get the next gcode to run
size_t i = 0;
char c;
while ((c = cmd[i]) && c != '\n') i++; // find the end of this gcode command
cmd[i] = '\0';
while ((c = queued_commands_P[i++]) && c != '\n') { };
if (i > 1) {
char cmd[i];
strncpy_P(cmd, queued_commands_P, i - 1);
cmd[i - 1] = '\0';
if (enqueue_and_echo_command(cmd)) { // buffer was not full (else we will retry later)
if (c)
queued_commands_P += i + 1; // move to next command
queued_commands_P += i; // move to next command
else
queued_commands_P = NULL; // will have no more commands in the sequence
queued_commands_P = NULL; // no more commands in the sequence
}
return true;
}
}
return (queued_commands_P != NULL); // any more left to add?
}
/**