From 5cdf7066e1ceb823afa572fa596c37a935911cde Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?=
 <zmoelnig@users.sourceforge.net>
Date: Tue, 23 Mar 2010 19:05:53 +0000
Subject: hmm, less crashes; threads hang

svn path=/trunk/externals/iem/iemnet/; revision=13245
---
 shared.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 70 insertions(+), 9 deletions(-)

(limited to 'shared.c')

diff --git a/shared.c b/shared.c
index 14311d8..819afb3 100644
--- a/shared.c
+++ b/shared.c
@@ -53,6 +53,24 @@ t_iemnet_chunk* iemnet__chunk_create_empty(int size) {
   return result;
 }
 
+t_iemnet_chunk* iemnet__chunk_create_data(int size, unsigned char*data) {
+  t_iemnet_chunk*result=(t_iemnet_chunk*)getbytes(sizeof(t_iemnet_chunk));
+  if(result) {
+    result->size=size;
+    result->data=(unsigned char*)getbytes(sizeof(unsigned char)*size); 
+
+    if(NULL == result->data) {
+      result->size=0;
+      iemnet__chunk_destroy(result);
+      return NULL;
+    }
+
+    memcpy(result->data, data, result->size);
+  }
+  return result;
+}
+
+
 t_iemnet_chunk* iemnet__chunk_create_list(int argc, t_atom*argv) {
   t_iemnet_chunk*result=(t_iemnet_chunk*)getbytes(sizeof(t_iemnet_chunk));
   int i;
@@ -136,7 +154,7 @@ int queue_push(
   int size=_this->size;
 
   if(NULL == data) return size;
-  fprintf(stderr, "pushing %d bytes\n", data->size);
+  //fprintf(stderr, "pushing %d bytes\n", data->size);
 
   n=(t_node*)getbytes(sizeof(t_node));
 
@@ -154,7 +172,7 @@ int queue_push(
   size=_this->size;
 
 
-  fprintf(stderr, "pushed %d bytes\n", data->size);
+  //fprintf(stderr, "pushed %d bytes\n", data->size);
 
   pthread_mutex_unlock(&_this->mtx);
   pthread_cond_signal(&_this->cond);
@@ -189,7 +207,7 @@ t_iemnet_chunk* queue_pop(
     freebytes(head, sizeof(t_node));
     head=NULL;
   }
-  fprintf(stderr, "popped %d bytes\n", data->size);
+  //fprintf(stderr, "popped %d bytes\n", data->size);
   return data;
 }
 
@@ -281,16 +299,17 @@ static void*iemnet__sender_sendthread(void*arg) {
   }
   sender->queue=NULL;
   queue_destroy(q);
+  fprintf(stderr, "write thread terminated\n");
   return NULL;
 }
 
 int iemnet__sender_send(t_iemnet_sender*s, t_iemnet_chunk*c) {
-  post("send %x %x", s, c);
+  //post("send %x %x", s, c);
   t_queue*q=s->queue;
   int size=0;
-  post("queue=%x", q);
+  //post("queue=%x", q);
   if(q) {
-    post("sending data with %d bytes using %x", c->size, s);
+    //    post("sending data with %d bytes using %x", c->size, s);
     size = queue_push(q, c);
   }
   return size;
@@ -357,18 +376,54 @@ int iemnet__sender_setsockopt(t_iemnet_sender*s, int level, int optname, const v
 
 
 struct _iemnet_receiver {
+  pthread_t thread;
   int sockfd; /* owned outside; you must call iemnet__receiver_destroy() before freeing socket yourself */
   void*owner;
   t_iemnet_chunk*data;
   t_iemnet_receivecallback callback;
+  t_queue*queue;
+  int cont;
 };
 
+
+/* the workhorse of the family */
+static void*iemnet__receiver_readthread(void*arg) {
+  t_iemnet_receiver*receiver=(t_iemnet_receiver*)arg;
+
+  int sockfd=receiver->sockfd;
+  t_queue*q=receiver->queue;
+
+  unsigned char data[INBUFSIZE];
+  unsigned int size=INBUFSIZE;
+
+  fprintf(stderr, "read thread started\n");
+
+  int i=0;
+  for(i=0; i<size; i++)data[i]=0;
+
+  while(receiver->cont) {
+    int result = recv(sockfd, data, size, 0);
+
+    if(0==result)break;
+    t_iemnet_chunk*c = iemnet__chunk_create_data(result, data);
+
+    queue_push(q, c);
+     
+    // shouldn't we do something with the result here?
+  }
+  fprintf(stderr, "read thread terminated\n");
+  return NULL;
+}
+
+
 static void iemnet__receiver_pollfn(t_iemnet_receiver*x, int fd) {
   int ret = recv(fd,  /* socket */
              x->data->data, /* buf */
              x->data->size,  /* len */
              0); /* flags */
 
+  post("pollfn");
+  return;
   if(ret<=0) {
     sys_rmpollfn(fd);
     x->callback(x->owner, fd, 0);
@@ -384,9 +439,10 @@ static void iemnet__receiver_pollfn(t_iemnet_receiver*x, int fd) {
 
 t_iemnet_receiver*iemnet__receiver_create(int sock, void*owner, t_iemnet_receivecallback callback) {
   t_iemnet_receiver*result=(t_iemnet_receiver*)getbytes(sizeof(t_iemnet_receiver));
-  fprintf(stderr, "new receiver for %d\t%x\t%x\n", sock, owner, callback);
+  //fprintf(stderr, "new receiver for %d\t%x\t%x\n", sock, owner, callback);
   if(result) {
     t_iemnet_chunk*data=iemnet__chunk_create_empty(INBUFSIZE);
+    int res=0;
     if(NULL==data) {
       iemnet__receiver_destroy(result);
       return NULL;
@@ -396,9 +452,12 @@ t_iemnet_receiver*iemnet__receiver_create(int sock, void*owner, t_iemnet_receive
     result->data=data;
     result->callback=callback;
 
-    sys_addpollfn(sock, (t_fdpollfn)iemnet__receiver_pollfn, result);
+    result->queue = queue_create();
+
+    result->cont = 1;
+    res=pthread_create(&result->thread, 0, iemnet__receiver_readthread, result);
   }
-  fprintf(stderr, "new receiver created\n");
+  //fprintf(stderr, "new receiver created\n");
 
   return result;
 }
@@ -414,6 +473,8 @@ void iemnet__receiver_destroy(t_iemnet_receiver*r) {
   r->data=NULL;
   r->callback=NULL;
 
+  r->cont = 0;
+
   freebytes(r, sizeof(t_iemnet_receiver));
   r=NULL;
 }
-- 
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