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Diffstat (limited to 'modules/generic/pdp_rawin.c')
-rw-r--r--modules/generic/pdp_rawin.c299
1 files changed, 0 insertions, 299 deletions
diff --git a/modules/generic/pdp_rawin.c b/modules/generic/pdp_rawin.c
deleted file mode 100644
index 28ef8fb..0000000
--- a/modules/generic/pdp_rawin.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * Pure Data Packet module. packet forth console
- * Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-
-#include <pthread.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <time.h>
-#include <fcntl.h>
-#include "pdp_pd.h"
-#include "pdp_debug.h"
-#include "pdp_list.h"
-#include "pdp_comm.h"
-#include "pdp_post.h"
-#include "pdp_packet.h"
-
-
-#define PERIOD 1.0f
-#define D if (1)
-
-
-
-
-/* raw input from a unix pipe */
-
-typedef struct rawin_struct
-{
- /* pd */
- t_object x_obj;
- t_outlet *x_outlet;
- t_outlet *x_sync_outlet;
- t_clock *x_clock;
-
- /* comm */
- t_pdp_list *x_queue; // packet queue
-
- /* thread */
- pthread_mutex_t x_mut;
- pthread_attr_t x_attr;
- pthread_t x_thread;
-
- /* sync */
- int x_giveup; // 1-> terminate reader thread
- int x_active; // 1-> reader thread is launched
- int x_done; // 1-> reader thread has exited
-
- /* config */
- t_symbol *x_pipe;
- t_pdp_symbol *x_type;
-
-} t_rawin;
-
-
-static inline void lock(t_rawin *x){pthread_mutex_lock(&x->x_mut);}
-static inline void unlock(t_rawin *x){pthread_mutex_unlock(&x->x_mut);}
-
-static void rawin_close(t_rawin *x);
-static void tick(t_rawin *x)
-{
- /* send all packets in queue to outlet */
- lock(x);
- while (x->x_queue->elements){
- outlet_pdp_atom(x->x_outlet, x->x_queue->first);
- pdp_list_pop(x->x_queue); // pop stale reference
- }
- unlock(x);
- clock_delay(x->x_clock, PERIOD);
-
- /* check if thread is done */
- if (x->x_done) rawin_close(x);
-
-}
-
-static void move_current_to_queue(t_rawin *x, int packet)
-{
- lock(x);
- pdp_list_add_back(x->x_queue, a_packet, (t_pdp_word)packet);
- unlock(x);
-}
-
-static void *rawin_thread(void *y)
-{
- int pipe;
- int packet = -1;
- t_rawin *x = (t_rawin *)y;
- int period_sec;
- int period_usec;
-
-
- //D pdp_post("pipe: %s", x->x_pipe->s_name);
- //D pdp_post("type: %s", x->x_type->s_name);
-
- /* open pipe */
- if (-1 == (pipe = open(x->x_pipe->s_name, O_RDONLY|O_NONBLOCK))){
- perror(x->x_pipe->s_name);
- goto exit;
- }
-
- /* main loop (packets) */
- while(1){
- void *data = 0;
- int left = -1;
-
- /* create packet */
- if (-1 != packet){
- pdp_post("WARNING: deleting stale packet");
- pdp_packet_mark_unused(packet);
- }
- packet = pdp_factory_newpacket(x->x_type);
- if (-1 == packet){
- pdp_post("ERROR: can't create packet. type = %s", x->x_type->s_name);
- goto exit;
- }
-
- /* fill packet */
- data = pdp_packet_data(packet);
- left = pdp_packet_data_size(packet);
- // D pdp_post("packet %d, data %x, size %d", packet, data, left);
-
- /* inner loop: pipe reads */
- while(left){
-
- fd_set inset;
- struct timeval tv = {0,10000};
-
- /* check if we need to stop */
- if (x->x_giveup){
- pdp_packet_mark_unused(packet);
- goto close;
- }
- /* select, with timeout */
- FD_ZERO(&inset);
- FD_SET(pipe, &inset);
- if (-1 == select(pipe+1, &inset, NULL,NULL, &tv)){
- pdp_post("select error");
- goto close;
- }
-
- /* if ready, read, else retry */
- if (FD_ISSET(pipe, &inset)){
- int bytes = read(pipe, data, left);
- if (!bytes){
- /* if no bytes are read, pipe is closed */
- goto close;
- }
- data += bytes;
- left -= bytes;
- }
- }
-
- /* move to queue */
- move_current_to_queue(x, packet);
- packet = -1;
-
-
-
- }
-
- close:
- /* close pipe */
- close(pipe);
-
-
- exit:
- x->x_done = 1;
- return 0;
-}
-
-
-
-static void rawin_type(t_rawin *x, t_symbol *type)
-{
- x->x_type = pdp_gensym(type->s_name);
-}
-
-static void rawin_open(t_rawin *x, t_symbol *pipe)
-{
- /* save pipe name if not empty */
- if (pipe->s_name[0]) {x->x_pipe = pipe;}
-
- if (x->x_active) {
- pdp_post("already open");
- return;
- }
- /* start thread */
- x->x_giveup = 0;
- x->x_done = 0;
- pthread_create(&x->x_thread, &x->x_attr, rawin_thread , x);
- x->x_active = 1;
-}
-
-static void rawin_close(t_rawin *x)
-{
-
- if (!x->x_active) return;
-
- /* stop thread: set giveup + wait */
- x->x_giveup = 1;
- pthread_join(x->x_thread, NULL);
- x->x_active = 0;
-
- /* notify */
- outlet_bang(x->x_sync_outlet);
- pdp_post("connection to %s closed", x->x_pipe->s_name);
-
-
-
-
-
-}
-
-static void rawin_free(t_rawin *x)
-{
- rawin_close(x);
- clock_free(x->x_clock);
- pdp_tree_strip_packets(x->x_queue);
- pdp_tree_free(x->x_queue);
-}
-
-t_class *rawin_class;
-
-
-static void *rawin_new(t_symbol *pipe, t_symbol *type)
-{
- t_rawin *x;
-
- pdp_post("%s %s", pipe->s_name, type->s_name);
-
- /* allocate & init */
- x = (t_rawin *)pd_new(rawin_class);
- x->x_outlet = outlet_new(&x->x_obj, &s_anything);
- x->x_sync_outlet = outlet_new(&x->x_obj, &s_anything);
- x->x_clock = clock_new(x, (t_method)tick);
- x->x_queue = pdp_list_new(0);
- x->x_active = 0;
- x->x_giveup = 0;
- x->x_done = 0;
- x->x_type = pdp_gensym("image/YCrCb/320x240"); //default
- x->x_pipe = gensym("/tmp/pdpraw"); // default
- pthread_attr_init(&x->x_attr);
- pthread_mutex_init(&x->x_mut, NULL);
- clock_delay(x->x_clock, PERIOD);
-
- /* args */
- rawin_type(x, type);
- if (pipe->s_name[0]) x->x_pipe = pipe;
-
- return (void *)x;
-
-}
-
-
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-
-void pdp_rawin_setup(void)
-{
- int i;
-
- /* create a standard pd class: [pdp_rawin pipe type] */
- rawin_class = class_new(gensym("pdp_rawin"), (t_newmethod)rawin_new,
- (t_method)rawin_free, sizeof(t_rawin), 0, A_DEFSYMBOL, A_DEFSYMBOL, A_NULL);
-
- /* add global message handler */
- class_addmethod(rawin_class, (t_method)rawin_type, gensym("type"), A_SYMBOL, A_NULL);
- class_addmethod(rawin_class, (t_method)rawin_open, gensym("open"), A_DEFSYMBOL, A_NULL);
- class_addmethod(rawin_class, (t_method)rawin_close, gensym("close"), A_NULL);
-
-
-}
-
-#ifdef __cplusplus
-}
-#endif
generated by cgit v1.2.1 (git 2.18.0) at 2024-08-16 02:46:44 +0000