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view graster/hacklab-engraver/M101 @ 18:a769347618a1
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author | Robert McIntyre <rlm@mit.edu> |
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date | Sun, 29 Aug 2010 23:44:59 -0400 |
parents | f952052e37b7 |
children |
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1 #!/usr/bin/python3 # === Graster Streaming Script ===4 #5 # This script is invoked by g-code M101 at the6 # beginning of every graster job. It figures out7 # the name of the mask file and forks a process8 # to stream it to the HAL while AXIS executes the9 # motion code.10 #11 # This file must be symlinked to the ~/emc2/nc_files dir13 import emc, os, sys, threading, gtk, time, popen2, signal, select15 os.chdir("/home/hacklab/emc2/configs/hacklab-engraver3")16 ini = emc.ini("hacklab-engraver3.ini")17 emc.nmlfile = ini.find("EMC","NML_FILE")18 s = emc.stat()19 s.poll()20 ngc = s.file21 (base,ext) = os.path.splitext(ngc)22 gmask = base+".gmask"23 if not os.path.exists(gmask):24 gmask = ngc+".gmask"25 if not os.path.exists(gmask):26 os.system('zenity --error --text "Mask file \''+base+'.gmask\' not found. Laser disabled for this job."')27 sys.exit(os.EX_NOINPUT)30 def make_pbar():31 (path,fn) = os.path.split(gmask)32 message = "Streaming '"+fn+"'\n\n" + \33 "This dialog should complete and close itself some time before\n" + \34 "your job is done. If you stop the job, wait for this dialog\n" + \35 "to go away before starting another one. If it won't go away,\n" + \36 "click 'Cancel' and kill any processes containing 'M101'.\n"37 return popen2.Popen3('zenity --progress --auto-close --auto-kill --title "Graster Streamer" --text "'+message+'"')39 pbar = make_pbar()41 total_lines = 042 fd = open(gmask,'r')43 for x in fd.readlines():44 total_lines += 145 fd.close()47 total_lines = float(total_lines)48 count = 050 print "Streaming '"+gmask+"'..."51 pid = os.fork()53 if pid:54 time.sleep(2)55 sys.exit(os.EX_OK)56 else:57 os.setsid()58 fin = open(gmask,'r')59 fout = os.popen('halstreamer','w')60 try:61 for line in fin.readlines():62 #r,w,e = select.select((),(fout,),(fout,),0.1)63 if pbar.poll() != -1: raise65 #if len(w) > 0:66 fout.write(line)67 count += 168 #elif len(e) > 0:69 # os.system("zenity --error --text 'Error writing to halstreamer. Job may not finish.'")70 # raise72 pbar.tochild.write(str(int(100.0*count/total_lines))+"\n")74 finally:75 print "...cleaning up..."76 #fin.close()77 #fout.close()78 pbar.tochild.close()79 pbar.fromchild.close()80 #os.kill(pbar.pid,signal.SIGINT)81 #os.kill(pbar.pid,signal.SIGKILL)82 print "...done!"83 os._exit(os.EX_OK)84 #sys.exit(os.EX_OK)