From ef4616f943c15d40cc2ff189b70e0ef6251af561 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Tue, 28 Aug 2001 16:38:06 +0000
Subject: guile integration

---
 mixguile/mixguile_cmd_dispatcher.c | 91 +++++++++++++++++++++++++++-----------
 1 file changed, 66 insertions(+), 25 deletions(-)

(limited to 'mixguile/mixguile_cmd_dispatcher.c')

diff --git a/mixguile/mixguile_cmd_dispatcher.c b/mixguile/mixguile_cmd_dispatcher.c
index 4676c43..b55d0ed 100644
--- a/mixguile/mixguile_cmd_dispatcher.c
+++ b/mixguile/mixguile_cmd_dispatcher.c
@@ -30,14 +30,56 @@
 #include "mixguile.h"
 #include "xmixguile_cmd_dispatcher.h"
 
+#define SCM_CMD  "scm"
+#define SCMF_CMD "scmf"
+
+/*local commands */
+static gboolean
+cmd_scm_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg)
+{
+  (void) gh_eval_str_with_catch ((char *)arg, scm_handle_by_message_noexit);
+  return TRUE;
+}
+
+static gboolean
+cmd_scmf_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg)
+{
+  (void) gh_eval_file_with_catch ((char *)arg, scm_handle_by_message_noexit);
+  return TRUE;
+}
+
+static mix_vm_command_info_t commands_[] = {
+  { SCM_CMD, cmd_scm_, N_("Eval Scheme command using Guile"), "scm COMMAND"},
+  { SCMF_CMD, cmd_scmf_, N_("Eval Scheme file using Guile"), "scm PATH"},
+  {NULL}
+};
+  
 /* create/destroy cmd dispatcher */
+static void
+make_pipe_ (mixguile_cmd_dispatcher_t *dis)
+{
+  int fildes[2], r;
+  FILE *out;
+  r = pipe (fildes);
+  g_return_if_fail (r == 0);
+  out = fdopen (fildes[1], "w");
+  g_return_if_fail (out != NULL);
+  r = fcntl (fildes[0], F_GETFL, 0);
+  g_return_if_fail (r != -1);
+  r = fcntl (fildes[0], F_SETFL, r | O_NONBLOCK);
+  g_return_if_fail (r != -1);
+
+  dis->guile_out = out;
+  dis->fildes[0] = fildes[0];
+  dis->fildes[1] = fildes[1];
+}
+
 mixguile_cmd_dispatcher_t *
 mixguile_cmd_dispatcher_new (mix_vm_cmd_dispatcher_t *dis)
 {
   static gboolean REGISTERED = FALSE;
   mixguile_cmd_dispatcher_t *result = NULL;
-  int fildes[2], r;
-  FILE *out;
+  int k = 0;
   
   g_return_val_if_fail (dis != NULL, NULL);
   
@@ -46,23 +88,19 @@ mixguile_cmd_dispatcher_new (mix_vm_cmd_dispatcher_t *dis)
       register_scm_commands_ (DEFAULT_SCM_COMMANDS_);
       REGISTERED = TRUE;
     }
-  
-  r = pipe (fildes);
-  g_return_val_if_fail (r == 0, NULL);
-  out = fdopen (fildes[1], "w");
-  g_return_val_if_fail (out != NULL, NULL);
-  r = fcntl (fildes[0], F_GETFL, 0);
-  g_return_val_if_fail (r != -1, NULL);
-  r = fcntl (fildes[0], F_SETFL, r | O_NONBLOCK);
-  g_return_val_if_fail (r != -1, NULL);
 
   result = g_new (mixguile_cmd_dispatcher_t, 1);
   result->dispatcher = dis;
   result->err = result->out = NULL;
-  result->guile_out = out;
-  result->fildes[0] = fildes[0];
-  result->fildes[1] = fildes[1];
   result->result = NULL;
+  result->fildes[0] = result->fildes[1] = -1;
+  result->guile_out = NULL;
+  
+  while (commands_[k].name)
+    {
+      mix_vm_cmd_dispatcher_register_new (dis, commands_ + k);
+      ++k;
+    }
   
   register_cmd_dispatcher_ (result);
   
@@ -74,9 +112,12 @@ void
 mixguile_cmd_dispatcher_delete (mixguile_cmd_dispatcher_t *dis)
 {
   g_return_if_fail (dis != NULL);
-  fclose (dis->guile_out);
-  close (dis->fildes[0]);
-  close (dis->fildes[1]);
+  if (dis->guile_out)
+    {
+      fclose (dis->guile_out);
+      close (dis->fildes[0]);
+      close (dis->fildes[1]);
+    }
   mix_vm_cmd_dispatcher_delete (dis->dispatcher);
 }
 
@@ -99,6 +140,7 @@ mixguile_cmd_dispatcher_last_result (mixguile_cmd_dispatcher_t *dis)
   gchar *tmp = NULL;
   
   g_return_val_if_fail (dis != NULL, NULL);
+  if (!dis->guile_out) return NULL;
   if (dis->result) g_free (dis->result);
   dis->result = NULL;
   fflush (dis->guile_out);
@@ -124,6 +166,7 @@ mixguile_cmd_dispatcher_last_result (mixguile_cmd_dispatcher_t *dis)
 static void
 prepare_dispatcher_ (mixguile_cmd_dispatcher_t *dis)
 {
+  if (!dis->guile_out) make_pipe_ (dis);
   dis->out = mix_vm_cmd_dispatcher_set_out_stream (dis->dispatcher,
 						   dis->guile_out);
   dis->err = mix_vm_cmd_dispatcher_set_error_stream (dis->dispatcher,
@@ -137,14 +180,14 @@ mixguile_cmd_dispatcher_prepare (mixguile_cmd_dispatcher_t *dis)
   prepare_dispatcher_ (dis);
 }
 
-/* interpret commands from file or string */
+/* interpret commands from file or string
 static void
 reset_dispatcher_ (mixguile_cmd_dispatcher_t *dis)
 {
   (void) mix_vm_cmd_dispatcher_set_out_stream (dis->dispatcher, dis->out);
   (void) mix_vm_cmd_dispatcher_set_error_stream (dis->dispatcher, dis->err);
 }
-
+*/
 
 void
 mixguile_cmd_dispatcher_interpret_file (mixguile_cmd_dispatcher_t *dis,
@@ -152,9 +195,8 @@ mixguile_cmd_dispatcher_interpret_file (mixguile_cmd_dispatcher_t *dis,
 {
   g_return_if_fail (dis != NULL);
   g_return_if_fail (path != NULL);
-  prepare_dispatcher_ (dis);
-  (void) gh_eval_file ((char *)path);
-  reset_dispatcher_ (dis);
+  mix_vm_cmd_dispatcher_dispatch_split_text (dis->dispatcher,
+					     SCMF_CMD, path);
 }
 
 void
@@ -163,8 +205,7 @@ mixguile_cmd_dispatcher_interpret_command (mixguile_cmd_dispatcher_t *dis,
 {
   g_return_if_fail (dis != NULL);
   g_return_if_fail (command != NULL);
-  prepare_dispatcher_ (dis);
-  (void) gh_eval_str ((char *)command);
-  reset_dispatcher_ (dis);
+  mix_vm_cmd_dispatcher_dispatch_split_text (dis->dispatcher,
+					     SCM_CMD, command);
 }
 
-- 
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