[PATCH]xl: move libxl init functions from xl.c to xl_cmdimpl.c

[Yang Hongyang <yanghy@cn.fujitsu.com>]

Move libxl init functions from xl.c to xl_cmdimpl.c, use a wrapper function
xl_init to do libxl init things.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>

diff -r efa1b905d893 tools/libxl/xl.c
--- a/tools/libxl/xl.c	Tue May 04 13:59:55 2010 +0100
+++ b/tools/libxl/xl.c	Wed May 05 20:22:03 2010 +0800
@@ -31,17 +31,6 @@
 #include "xl_cmdimpl.h"
 #include "xl_cmdtable.h"
 
-extern struct libxl_ctx ctx;
-extern int logfile;
-
-void log_callback(void *userdata, int loglevel, const char *file, int line, const char *func, char *s)
-{
-    char str[1024];
-
-    snprintf(str, sizeof(str), "[%d] %s:%d:%s: %s\n", loglevel, file, line, func, s);
-    write(logfile, str, strlen(str));
-}
-
 int main(int argc, char **argv)
 {
     int i;
@@ -51,14 +40,7 @@
         exit(1);
     }
 
-    if (libxl_ctx_init(&ctx, LIBXL_VERSION)) {
-        fprintf(stderr, "cannot init xl context\n");
-        exit(1);
-    }
-    if (libxl_ctx_set_log(&ctx, log_callback, NULL)) {
-        fprintf(stderr, "cannot set xl log callback\n");
-        exit(-ERROR_FAIL);
-    }
+    xl_init();
 
     srand(time(0));
 
diff -r efa1b905d893 tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c	Tue May 04 13:59:55 2010 +0100
+++ b/tools/libxl/xl_cmdimpl.c	Wed May 05 20:22:03 2010 +0800
@@ -87,6 +87,26 @@
 
 #define SAVEFILE_BYTEORDER_VALUE ((uint32_t)0x01020304UL)
 
+void log_callback(void *userdata, int loglevel, const char *file, int line, const char *func, char *s)
+{
+    char str[1024];
+
+    snprintf(str, sizeof(str), "[%d] %s:%d:%s: %s\n", loglevel, file, line, func, s);
+    write(logfile, str, strlen(str));
+}
+
+void xl_init(void)
+{
+    if (libxl_ctx_init(&ctx, LIBXL_VERSION)) {
+        fprintf(stderr, "cannot init xl context\n");
+        exit(1);
+    }
+    if (libxl_ctx_set_log(&ctx, log_callback, NULL)) {
+        fprintf(stderr, "cannot set xl log callback\n");
+        exit(-ERROR_FAIL);
+    }
+}
+
 static int domain_qualifier_to_domid(const char *p, uint32_t *domid_r,
                                      int *was_name_r)
 {
diff -r efa1b905d893 tools/libxl/xl_cmdimpl.h
--- a/tools/libxl/xl_cmdimpl.h	Tue May 04 13:59:55 2010 +0100
+++ b/tools/libxl/xl_cmdimpl.h	Wed May 05 20:22:03 2010 +0800
@@ -37,3 +37,4 @@
 int main_sched_credit(int argc, char **argv);
 
 void help(char *command);
+void xl_init(void);

-- 
Regards
Yang Hongyang