ui: Convert vnc_display_init(), init_keyboard_layout() to Error

Signed-off-by: Fei Li <fli@suse.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181017082702.5581-27-armbru@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>

include/ui/console.h

@@ -453,7 +453,7 @@ void qemu_display_early_init(DisplayOptions *opts);
 void qemu_display_init(DisplayState *ds, DisplayOptions *opts);
 
 /* vnc.c */
-void vnc_display_init(const char *id);
+void vnc_display_init(const char *id, Error **errp);
 void vnc_display_open(const char *id, Error **errp);
 void vnc_display_add_client(const char *id, int csock, bool skipauth);
 int vnc_display_password(const char *id, const char *password);

ui/curses.c

@@ -28,6 +28,7 @@
 #include <termios.h>
 #endif
 
+#include "qapi/error.h"
 #include "qemu-common.h"
 #include "ui/console.h"
 #include "ui/input.h"
@@ -421,9 +422,8 @@ static void curses_keyboard_setup(void)
         keyboard_layout = "en-us";
 #endif
     if(keyboard_layout) {
-        kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
+        kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout,
-        if (!kbd_layout)
+                                          &error_fatal);
-            exit(1);
     }
 }
 

ui/keymaps.c

@@ -27,6 +27,7 @@
 #include "sysemu/sysemu.h"
 #include "trace.h"
 #include "qemu/error-report.h"
+#include "qapi/error.h"
 
 struct keysym2code {
     uint32_t count;
@@ -81,7 +82,7 @@ static void add_keysym(char *line, int keysym, int keycode, kbd_layout_t *k)
 
 static int parse_keyboard_layout(kbd_layout_t *k,
                                  const name2keysym_t *table,
-                                 const char *language)
+                                 const char *language, Error **errp)
 {
     int ret;
     FILE *f;
@@ -95,7 +96,7 @@ static int parse_keyboard_layout(kbd_layout_t *k,
     f = filename ? fopen(filename, "r") : NULL;
     g_free(filename);
     if (!f) {
-        fprintf(stderr, "Could not read keymap file: '%s'\n", language);
+        error_setg(errp, "could not read keymap file: '%s'", language);
         return -1;
     }
 
@@ -114,7 +115,7 @@ static int parse_keyboard_layout(kbd_layout_t *k,
             continue;
         }
         if (!strncmp(line, "include ", 8)) {
-            if (parse_keyboard_layout(k, table, line + 8) < 0) {
+            if (parse_keyboard_layout(k, table, line + 8, errp) < 0) {
                 ret = -1;
                 goto out;
             }
@@ -172,13 +173,13 @@ out:
 
 
 kbd_layout_t *init_keyboard_layout(const name2keysym_t *table,
-                                   const char *language)
+                                   const char *language, Error **errp)
 {
     kbd_layout_t *k;
 
     k = g_new0(kbd_layout_t, 1);
     k->hash = g_hash_table_new(NULL, NULL);
-    if (parse_keyboard_layout(k, table, language) < 0) {
+    if (parse_keyboard_layout(k, table, language, errp) < 0) {
         g_hash_table_unref(k->hash);
         g_free(k);
         return NULL;

ui/keymaps.h

@@ -53,7 +53,7 @@ typedef struct {
 typedef struct kbd_layout_t kbd_layout_t;
 
 kbd_layout_t *init_keyboard_layout(const name2keysym_t *table,
-                                   const char *language);
+                                   const char *language, Error **errp);
 int keysym2scancode(kbd_layout_t *k, int keysym,
                     bool shift, bool altgr, bool ctrl);
 int keycode_is_keypad(kbd_layout_t *k, int keycode);

ui/sdl.c

@@ -29,6 +29,7 @@
 #include <SDL.h>
 #include <SDL_syswm.h>
 
+#include "qapi/error.h"
 #include "qemu-common.h"
 #include "qemu/cutils.h"
 #include "ui/console.h"
@@ -917,9 +918,8 @@ static void sdl1_display_init(DisplayState *ds, DisplayOptions *o)
         keyboard_layout = "en-us";
 #endif
     if(keyboard_layout) {
-        kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
+        kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout,
-        if (!kbd_layout)
+                                          &error_fatal);
-            exit(1);
     }
 
     g_printerr("Running QEMU with SDL 1.2 is deprecated, and will be removed\n"

ui/vnc.c

@@ -3205,7 +3205,7 @@ static const DisplayChangeListenerOps dcl_ops = {
     .dpy_cursor_define    = vnc_dpy_cursor_define,
 };
 
-void vnc_display_init(const char *id)
+void vnc_display_init(const char *id, Error **errp)
 {
     VncDisplay *vd;
 
@@ -3222,13 +3222,14 @@ void vnc_display_init(const char *id)
 
     if (keyboard_layout) {
         trace_vnc_key_map_init(keyboard_layout);
-        vd->kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
+        vd->kbd_layout = init_keyboard_layout(name2keysym,
+                                              keyboard_layout, errp);
     } else {
-        vd->kbd_layout = init_keyboard_layout(name2keysym, "en-us");
+        vd->kbd_layout = init_keyboard_layout(name2keysym, "en-us", errp);
     }
 
     if (!vd->kbd_layout) {
-        exit(1);
+        return;
     }
 
     vd->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE;
@@ -4079,7 +4080,11 @@ int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp)
     char *id = (char *)qemu_opts_id(opts);
 
     assert(id);
-    vnc_display_init(id);
+    vnc_display_init(id, &local_err);
+    if (local_err) {
+        error_report_err(local_err);
+        exit(1);
+    }
     vnc_display_open(id, &local_err);
     if (local_err != NULL) {
         error_reportf_err(local_err, "Failed to start VNC server: ");