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Diffstat (limited to 'help/popen-help.pd')
-rw-r--r-- | help/popen-help.pd | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/help/popen-help.pd b/help/popen-help.pd deleted file mode 100644 index e37d8e9..0000000 --- a/help/popen-help.pd +++ /dev/null @@ -1,68 +0,0 @@ -#N canvas 0 195 644 383 10; -#X obj 0 0 cnv 8 100 60 empty empty popen 10 20 1 18 -262144 -1109 -0; -#X text 13 362 (c) Moonix: Antoine Rousseau 2003; -#X msg 31 74 open process; -#X text 12 57 open: popen for writing; -#X msg 240 76 ropen process; -#X text 221 59 ropen: popen for reading; -#X msg 466 76 close; -#X text 428 60 close (quit) current process; -#X text 108 13 processus in/out (linux only); -#X text 108 26 DANGEROUS: deadlocks are easy!!!!; -#N canvas 0 0 850 359 example 0; -#X obj 458 194 popen; -#X msg 516 167 close; -#X obj 82 311 popen; -#X msg 151 261 close; -#X msg 76 190 list cat to where you want; -#X msg 24 145 open cat > /tmp/tmp_fifo; -#X msg 431 138 ropen cat /tmp/tmp_fifo; -#X obj 38 89 system; -#X msg 38 67 mkfifo /tmp/tmp_fifo; -#X obj 76 258 symbol \;; -#X obj 76 236 t b a; -#X symbolatom 433 284 0 0 0 0 - - -; -#X text 10 17 example: fifo read/write. RESPECT THE NUMBERS for commands -!; -#X text 430 120 3: open for reading; -#X msg 92 213 list Caution not to lock your computer...; -#X text 517 183 6: close reading process; -#X obj 433 260 l2s; -#X obj 458 227 print ropen; -#X text 76 173 4: write to fifo (as many times you want); -#X text 36 46 1: create the fifo (if not done); -#X text 147 244 5: close writing process FIRST; -#X text 23 125 2: open the fifo for writing FIRST; -#X text 503 248 Caution: popen/ropen waits for a " \; "; -#X text 565 260 to send its buffer (pd style).; -#X connect 0 0 17 0; -#X connect 0 0 16 0; -#X connect 1 0 0 0; -#X connect 3 0 2 0; -#X connect 4 0 10 0; -#X connect 5 0 2 0; -#X connect 6 0 0 0; -#X connect 8 0 7 0; -#X connect 9 0 2 0; -#X connect 10 0 9 0; -#X connect 10 1 2 0; -#X connect 14 0 10 0; -#X connect 16 0 11 0; -#X restore 19 161 pd example; -#X obj 31 109 popen; -#X text 20 191 Remarks:; -#X text 46 204 The danger here comes from the fact processes lauched -by; -#X text 47 215 popen runs concurrently with pd: if they are blocking -\, pd; -#X text 46 228 is blocking too. Very dangerous if pd has real-time -priority: it blocks all the sytem. You have to switch off the computer... -; -#X text 47 267 It's much safer to use netsend/netreceive in conjonction -with pdsend/pdreceive.; -#X obj 206 333 system; -#X text 46 297 You can use "at now" to lauch programs totally independantly -from Pd:; -#X msg 206 313 echo xclock -display 0:0 | at now; -#X connect 19 0 17 0; |