X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fchar_stream.c;h=445a0ac5eb06f9130e1093efc7d02f36ccecc719;hb=2377d33e71ba625a547b414916949181db2a49da;hp=4590cae2c78a09c13e7a59bd3e2f3c9e6d2ea7fd;hpb=4cc7f00cbe637224fb12baaf0e95f8b0040eb7bd;p=palacios.git

diff --git a/palacios/src/devices/char_stream.c b/palacios/src/devices/char_stream.c
index 4590cae..445a0ac 100644
--- a/palacios/src/devices/char_stream.c
+++ b/palacios/src/devices/char_stream.c
@@ -18,7 +18,7 @@
  */
 
 #include <palacios/vmm.h>
-#include <palacios/vmm_stream.h>
+#include <interfaces/vmm_stream.h>
 #include <palacios/vmm_dev_mgr.h>
 #include <palacios/vmm_sprintf.h>
 #include <palacios/vmm_host_events.h>
@@ -27,84 +27,92 @@
 
 
 struct stream_state {
-    v3_stream_t stream;
+    struct v3_stream * stream;
 
     struct v3_dev_char_ops char_ops;
 
+    struct v3_vm_info * vm;
+
     void * push_fn_arg;
 };
 
 
+static uint64_t  stream_input(struct v3_stream * stream, uint8_t * buf, uint64_t len) {
+    struct stream_state * state = stream->guest_stream_data;
+
+    return state->char_ops.input(state->vm, buf, len, state->push_fn_arg);
+
+}
 
-static int stream_write(uint8_t * buf, uint64_t length, void * private_data) 
-{
-    struct stream_state *state = (struct stream_state *)private_data;
-    
-    return v3_stream_write(state->stream, buf, length);
+static uint64_t  stream_output(uint8_t * buf, uint64_t length, void * private_data) {
+    struct stream_state * state = (struct stream_state *)private_data;
+   
+    return v3_stream_output(state->stream, buf, length);
 }
 
+static int stream_free(struct stream_state * state) {
+    v3_stream_close(state->stream);
+
+    // detach host event
+
+    V3_Free(state);
+
+    return 0;
+}
 
 
 static struct v3_device_ops dev_ops = {
-    .free = NULL,
-    .reset = NULL,
-    .start = NULL,
-    .stop = NULL,
+    .free = (int (*)(void *))stream_free,
 };
 
-static int stream_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) 
-{
+static int stream_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) {
     char * dev_id = v3_cfg_val(cfg, "ID");
     char * stream_name = v3_cfg_val(cfg, "name");
     struct stream_state * state = NULL;
 
     v3_cfg_tree_t * frontend_cfg = v3_cfg_subtree(cfg, "frontend");
 
-
     state = (struct stream_state *)V3_Malloc(sizeof(struct stream_state));
 
     if (state == NULL) {
-	PrintError("Could not allocate stream backend device\n");
+	PrintError(vm, VCORE_NONE, "Could not allocate stream backend device\n");
 	return -1;
     }
 
     memset(state, 0, sizeof(struct stream_state));
 
-    state->stream = v3_stream_open(vm, stream_name);
+    struct vm_device * dev = v3_add_device(vm, dev_id, &dev_ops, state);
 
-    if (state->stream == NULL) {
-	PrintError("Could not open stream %s\n", stream_name);
+    if (dev == NULL) {
+	PrintError(vm, VCORE_NONE, "Could not allocate device %s\n", dev_id);
 	V3_Free(state);
 	return -1;
     }
-    
-    state->char_ops.write = stream_write;
-	
-    struct vm_device * dev = v3_allocate_device(dev_id, &dev_ops, state);
 
-    if (dev == NULL) {
-	PrintError("Could not allocate device %s\n", dev_id);
-	return -1;
-    }
 
-    if (v3_attach_device(vm, dev) == -1) {
-	PrintError("Could not attach device %s\n", dev_id);
-	V3_Free(state);
+    state->stream = v3_stream_open(vm, stream_name, stream_input, state);
+
+    if (state->stream == NULL) {
+	PrintError(vm, VCORE_NONE, "Could not open stream %s\n", stream_name);
+	v3_remove_device(dev);
 	return -1;
     }
 
+    state->vm = vm;
+    state->char_ops.output = stream_output;
+
     if (v3_dev_connect_char(vm, v3_cfg_val(frontend_cfg, "tag"), 
 			    &(state->char_ops), frontend_cfg, 
 			    state, &(state->push_fn_arg)) == -1) {
-	PrintError("Could not connect %s to frontend %s\n", 
+	PrintError(vm, VCORE_NONE, "Could not connect %s to frontend %s\n", 
 		   dev_id, v3_cfg_val(frontend_cfg, "tag"));
+	v3_remove_device(dev);
 	return -1;
     }
-    
+
 
 
     return 0;
 }
 
-device_register("CHAR_STREAM", stream_init)
-
+device_register("CHAR_STREAM", stream_init);