add exec.c......... :)

SVN revision: 3977

src/exec.c

@@ -0,0 +1,109 @@
+#include "e.h"
+
+static int e_argc = 0;
+static char **e_argv = NULL;
+
+void
+e_exec_set_args(int argc, char **argv)
+{
+   e_argc = argc;
+   e_argv = argv;
+}
+
+void
+e_exec_restart(void)
+{
+   int i, num;
+   char exe[4096];
+
+   printf("e_exec_restart()\n");
+   /* unset events on root */
+   e_window_set_events(0, XEV_NONE);
+   /* destroy all desktops */
+   num = e_desktops_get_num();
+   for (i = 0; i < num; i++)
+     {
+	E_Desktop *desk;
+	
+	desk = e_desktops_get(0);
+	e_desktops_delete(desk);
+     }
+   /* ensure it's all done */
+   e_sync();
+   /* rerun myself */
+   exe[0] = 0;
+   for (i = 0; i < e_argc; i++)
+     {
+	strcat(exe, e_argv[i]);
+	strcat(exe, " ");
+     }
+   execl("/bin/sh", "/bin/sh", "-c", exe, NULL);   
+}
+
+pid_t
+e_exec_run(char *exe)
+{
+   pid_t               pid;
+   
+   pid = fork();
+   if (pid)
+     return pid;
+   setsid();
+   execl("/bin/sh", "/bin/sh", "-c", exe, NULL);
+   exit(0);
+   return 0;
+}
+
+pid_t
+e_exec_run_in_dir(char *exe, char *dir)
+{
+   pid_t               pid;
+   
+   pid = fork();
+   if (pid)
+     return pid;
+   chdir(dir);
+   setsid();
+   execl("/bin/sh", "/bin/sh", "-c", exe, NULL);
+   exit(0);
+   return 0;
+}
+
+pid_t
+e_run_in_dir_with_env(char *exe, char *dir, int *launch_id_ret, char **env, char *launch_path)
+{
+   static int launch_id = 0;
+   char preload_paths[4096];
+   char preload[4096];
+   char *exe2;
+   pid_t               pid;
+   
+   launch_id++;
+   if (launch_id_ret) *launch_id_ret = launch_id;
+   pid = fork();
+   if (pid) return pid;
+   chdir(dir);
+   setsid();
+   if (env)
+     {
+	while (*env)
+	  {
+	     e_set_env(env[0], env[1]);
+	     env += 2;
+	  }
+     }
+   /* launch Id hack - if it's an X program the windows popped up should */
+   /* have this launch Id number set on them - as well as process ID */
+   /* machine name, and user name */
+   if (launch_path) e_set_env("E_HACK_LAUNCH_PATH", launch_path);
+   sprintf(preload_paths, "E_HACK_LAUNCH_ID=%i LD_PRELOAD_PATH='%s'", 
+	   launch_id, PACKAGE_LIB_DIR);
+   sprintf(preload, "LD_PRELOAD='libehack.so libX11.so libdl.so'");
+   exe2 = malloc(strlen(exe) + 1 + 
+		 strlen(preload_paths) + 1 + 
+		 strlen(preload) + 1);
+   sprintf(exe2, "%s %s %s", preload_paths, preload, exe);
+   execl("/bin/sh", "/bin/sh", "-c", exe2, NULL);
+   exit(0);
+   return 0;
+}