X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=ioncore%2Fexec.c;h=9da70032c12d2a4d7ccf74ff806994d87eb309a9;hb=bab1a29cb81b48fe5f1f79349db31363e52143c1;hp=10c8267781eb70113e92d50cbae1304d14eec068;hpb=8366314611bf30a0f31d25bf5f5023186fa87692;p=ion3.git

diff --git a/ioncore/exec.c b/ioncore/exec.c
index 10c8267..9da7003 100644
--- a/ioncore/exec.c
+++ b/ioncore/exec.c
@@ -1,12 +1,9 @@
 /*
  * ion/ioncore/exec.c
  *
- * Copyright (c) Tuomo Valkonen 1999-2006. 
+ * Copyright (c) Tuomo Valkonen 1999-2009. 
  *
- * Ion is free software; you can redistribute it and/or modify it under
- * the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
+ * See the included file LICENSE for details.
  */
 
 #include <limits.h>
@@ -28,10 +25,12 @@
 /*{{{ Exec */
 
 
-void ioncore_setup_environ(int xscr)
+void ioncore_setup_display(int xscr)
 {
     char *tmp, *ptr;
     char *display;
+
+    /* Set up $DISPLAY */
     
     display=XDisplayName(ioncore_g.display);
     
@@ -54,7 +53,7 @@ void ioncore_setup_environ(int xscr)
         snprintf(tmp+strlen(tmp), 11, ".%u", (unsigned)xscr);
     
     putenv(tmp);
-    
+        
     /* No need to free it, we'll execve soon */
     /*free(tmp);*/
 
@@ -62,25 +61,15 @@ void ioncore_setup_environ(int xscr)
 }
 
 
-typedef struct{
-    WRootWin *rw;
-    const char *wd;
-} ExecP;
-
-
-static void setup_exec(void *p_)
+void ioncore_setup_environ(const WExecP *p)
 {
-    ExecP *p=(ExecP*)p_;
-    
-    close(ioncore_g.conn);
-    
-    ioncore_g.dpy=NULL;
+    /* Set up $DISPLAY */
     
-#ifndef CF_NO_SETPGID
-    setpgid(0, 0);
-#endif
+    ioncore_setup_display(p->target!=NULL 
+                          ? region_rootwin_of(p->target)->xscr
+                          : -1);
     
-    ioncore_setup_environ(p->rw==NULL ? -1 : p->rw->xscr);
+    /* Set up working directory */
     
     if(p->wd!=NULL){
         if(chdir(p->wd)!=0)
@@ -89,13 +78,29 @@ static void setup_exec(void *p_)
 }
 
 
+WHook *ioncore_exec_environ_hook=NULL;
+
+
+static void setup_exec(void *execp)
+{
+    hook_call_p(ioncore_exec_environ_hook, execp, NULL);
+    
+#ifndef CF_NO_SETPGID
+    setpgid(0, 0);
+#endif
+    
+    ioncore_g.dpy=NULL;
+}
+
+
 EXTL_EXPORT
-int ioncore_do_exec_rw(WRootWin *rw, const char *cmd, const char *wd,
+int ioncore_do_exec_on(WRegion *reg, const char *cmd, const char *wd,
                        ExtlFn errh)
 {
-    ExecP p;
+    WExecP p;
     
-    p.rw=rw;
+    p.target=reg;
+    p.cmd=cmd;
     p.wd=wd;
     
     return mainloop_popen_bgread(cmd, setup_exec, (void*)&p, 
@@ -113,23 +118,28 @@ EXTL_SAFE
 EXTL_EXPORT
 int ioncore_exec(const char *cmd)
 {
-    return ioncore_do_exec_rw(NULL, cmd, NULL, extl_fn_none());
+    return ioncore_do_exec_on(NULL, cmd, NULL, extl_fn_none());
 }
 
 
 /*EXTL_DOC
- * Run \var{cmd} with a read pipe connected to its stdout.
- * When data is received through the pipe, \var{handler} is called
- * with that data.
+ * Run \var{cmd} in directory \var{wd} with a read pipe connected to its
+ * stdout and stderr.
+ * When data is received through one of these pipes, \var{h} or \var{errh} 
+ * is called with that data. When the pipe is closed, the handler is called
+ * with \code{nil} argument. The PID of the new process is returned, or
+ * -1 on error.
  */
 EXTL_SAFE
 EXTL_EXPORT
-int ioncore_popen_bgread(const char *cmd, ExtlFn h, ExtlFn errh)
+int ioncore_popen_bgread(const char *cmd, ExtlFn h, ExtlFn errh,
+                         const char *wd)
 {
-    ExecP p;
+    WExecP p;
     
-    p.rw=NULL;
-    p.wd=NULL;
+    p.target=NULL;
+    p.wd=wd;
+    p.cmd=cmd;
     
     return mainloop_popen_bgread(cmd, setup_exec, (void*)&p, h, errh);
 }
@@ -196,7 +206,7 @@ void ioncore_do_restart()
     ioncore_deinit();
     if(other!=NULL){
         if(ioncore_g.display!=NULL)
-            ioncore_setup_environ(-1);
+            ioncore_setup_display(-1);
         mainloop_do_exec(other);
         warn_err_obj(other);
     }