// Get the amount of gcode buffer space we are going to report
unsigned int Webserver::GetReportedGcodeBufferSpace() const
{
unsigned int temp = GetGcodeBufferSpace();
return (temp > maxReportedFreeBuf) ? maxReportedFreeBuf
: (temp < minReportedFreeBuf) ? 0
: temp;
}
// Process a received string of gcodes
void Webserver::StoreGcodeData(const char* data, size_t len)
{
if (len > GetGcodeBufferSpace())
{
platform->Message(HOST_MESSAGE, "Webserver: GCode buffer overflow.\n");
HandleReply("Webserver: GCode buffer overflow", true);
}
else
{
size_t remaining = gcodeBufLength - gcodeWriteIndex;
if (len <= remaining)
{
memcpy(gcodeBuffer + gcodeWriteIndex, data, len);
}
else
{
memcpy(gcodeBuffer + gcodeWriteIndex, data, remaining);
memcpy(gcodeBuffer, data + remaining, len - remaining);
}
gcodeWriteIndex = (gcodeWriteIndex + len) % gcodeBufLength;
}
}
void Webserver::ProcessGcode(const char* gc)
{
int8_t specialAction = 0;
if(StringStartsWith(gc, "M30 "))
{
specialAction = 1;
}
else if(StringStartsWith(gc, "M23 "))
{
specialAction = 2;
}
else if(StringStartsWith(gc, "M112") && !isdigit(gc[4]))
{
specialAction = 3;
}
else if(StringStartsWith(gc, "M503") && !isdigit(gc[4]))
{
specialAction = 4;
}
if(specialAction != 0) // Delete or print a file?
{
switch (specialAction)
{
case 1: // Delete
reprap.GetGCodes()->DeleteFile(&gc[4]);
break;
case 2: // print
reprap.GetGCodes()->QueueFileToPrint(&gc[4]);
break;
case 3:
reprap.EmergencyStop();
break;
case 4:
{
FileStore *configFile = platform->GetFileStore(platform->GetSysDir(), platform->GetConfigFile(), false);
if(configFile == NULL)
{
HandleReply("Configuration file not found", true);
}
else
{
char c;
size_t i = 0;
while(i < STRING_LENGTH && configFile->Read(c))
{
gcodeReply[i++] = c;
}
configFile->Close();
gcodeReply[i] = 0;
++seq;
}
}
break;
}
}
else
{
// Copy the gcode to the buffer
size_t len = strlen(gc) + 1; // number of characters to copy
if (len > GetGcodeBufferSpace())
{
platform->Message(HOST_MESSAGE, "Webserver: GCode buffer overflow.\n");
HandleReply("Webserver: GCode buffer overflow", true);
}
else
{
size_t remaining = gcodeBufLength - gcodeWriteIndex;
if (len <= remaining)
{
memcpy(&gcodeBuffer[gcodeWriteIndex], gc, len);
}
else
{
memcpy(&gcodeBuffer[gcodeWriteIndex], gc, remaining);
memcpy(gcodeBuffer, gc + remaining, len - remaining);
}
gcodeWriteIndex = (gcodeWriteIndex + len) % gcodeBufLength;
}
}
}
