(no commit message)

[gacela.git] / src / gacela.c

diff --git a/src/gacela.c b/src/gacela.c
index 3c13231027dd926e92130b35b3532f47d4608253..036b3fa9ef3075d3eae7404564495240d1a7d01c 100644 (file)
--- a/src/gacela.c
+++ b/src/gacela.c
@@ -30,8 +30,11 @@
 #include "gacela_GL.h"
 #include "gacela_FTGL.h"
 
-// Generic variables
+// Global variables
 int ctrl_c = 0;
+int pid = 0;
+char *history_path = NULL;
+
 
 static int
 find_matching_paren (int k)
@@ -114,11 +117,18 @@ ctrl_c_handler (int signum)
   printf ("ERROR: User interrupt\nABORT: (signal)\n");
   ctrl_c = 1;
 }
-     
+
+void
+child_dies_handler (int signum)
+{
+  write_history (history_path);
+  exit (0);
+}
+
 static void
 init_gacela_client ()
 {
-  struct sigaction new_action;
+  struct sigaction ctrl_c_action, child_dies_action;
 
   // init bouncing parens
   rl_bind_key (')', match_paren);
@@ -126,11 +136,21 @@ init_gacela_client ()
   rl_bind_key ('}', match_paren);
 
   // SIGINT
-  new_action.sa_handler = ctrl_c_handler;
-  sigemptyset (&new_action.sa_mask);
-  new_action.sa_flags = 0;
+  ctrl_c_action.sa_handler = ctrl_c_handler;
+  sigemptyset (&ctrl_c_action.sa_mask);
+  ctrl_c_action.sa_flags = 0;
+
+  sigaction (SIGINT, &ctrl_c_action, NULL);
+
+  // SIGALRM
+  if (pid != 0) {
+    child_dies_action.sa_handler = child_dies_handler;
+    sigemptyset (&child_dies_action.sa_mask);
+    child_dies_action.sa_flags = 0;
+
+    sigaction (SIGALRM, &child_dies_action, NULL);
+  }
 
-  sigaction (SIGINT, &new_action, NULL);
 }
 
 int
@@ -173,7 +193,6 @@ gacela_client (SCM rec_channel, SCM send_channel)
   int n;
   SCM buffer;
   char *line = NULL, *line_for_sending = NULL;
-  char *history_path;
   int opened = 0;
 
   // Command line
@@ -201,7 +220,7 @@ gacela_client (SCM rec_channel, SCM send_channel)
        }
        else {
          line_for_sending = realloc (line_for_sending, strlen (line_for_sending) + strlen (line) + 2);
-         line_for_sending = strcat (line_for_sending, " ");
+         line_for_sending = strcat (line_for_sending, "\n");
          line_for_sending = strcat (line_for_sending, line);
        }
 
@@ -305,7 +324,6 @@ main (int argc, char *argv[])
   int port = 0;
   int i;
   SCM fd1, fd2;
-  int pid;
 
   // Checking arguments
   for (i = 1; i < argc; i++) {
@@ -343,6 +361,7 @@ main (int argc, char *argv[])
       scm_close (SCM_CDR (fd2));
       init_gacela (dirname (argv[0]));
       start_local_server (scm_cons (SCM_CAR (fd2), SCM_CDR (fd1)));
+      kill (getppid (), SIGALRM);
     }
     else {
       scm_close (SCM_CDR (fd1));