monitor: Rework API (Jan Kiszka)

Refactor the monitor API and prepare it for decoupled terminals:
term_print functions are renamed to monitor_* and all monitor services
gain a new parameter (mon) that will once refer to the monitor instance
the output is supposed to appear on. However, the argument remains
unused for now. All monitor command callbacks are also extended by a mon
parameter so that command handlers are able to pass an appropriate
reference to monitor output services.

For the case that monitor outputs so far happen without clearly
identifiable context, the global variable cur_mon is introduced that
shall once provide a pointer either to the current active monitor (while
processing commands) or to the default one. On the mid or long term,
those use case will be obsoleted so that this variable can be removed
again.

Due to the broad usage of the monitor interface, this patch mostly deals
with converting users of the monitor API. A few of them are already
extended to pass 'mon' from the command handler further down to internal
functions that invoke monitor_printf.

At this chance, monitor-related prototypes are moved from console.h to
a new monitor.h. The same is done for the readline API.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6711 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 21 insertions, 14 deletions

diff --git a/usb-linux.c b/usb-linux.c
index f19f0c4107..70d7a1c29b 100644
--- a/usb-linux.c
+++ b/usb-linux.c
@@ -32,7 +32,7 @@
 
 #include "qemu-common.h"
 #include "qemu-timer.h"
-#include "console.h"
+#include "monitor.h"
 
 #include <dirent.h>
 #include <sys/ioctl.h>
@@ -985,6 +985,7 @@ static int usb_host_auto_del(const char *spec);
 
 USBDevice *usb_host_device_open(const char *devname)
 {
+    Monitor *mon = cur_mon;
     int bus_num, addr;
     char product_name[PRODUCT_NAME_SZ];
 
@@ -998,7 +999,8 @@ USBDevice *usb_host_device_open(const char *devname)
         return NULL;
 
     if (hostdev_find(bus_num, addr)) {
-       term_printf("husb: host usb device %d.%d is already open\n", bus_num, addr);
+       monitor_printf(mon, "husb: host usb device %d.%d is already open\n",
+                      bus_num, addr);
        return NULL;
     }
 
@@ -1149,6 +1151,7 @@ static int usb_host_scan_dev(void *opaque, USBScanFunc *func)
  */
 static int usb_host_read_file(char *line, size_t line_size, const char *device_file, const char *device_name)
 {
+    Monitor *mon = cur_mon;
     FILE *f;
     int ret = 0;
     char filename[PATH_MAX];
@@ -1161,7 +1164,7 @@ static int usb_host_read_file(char *line, size_t line_size, const char *device_f
         fclose(f);
         ret = 1;
     } else {
-        term_printf("husb: could not open %s\n", filename);
+        monitor_printf(mon, "husb: could not open %s\n", filename);
     }
 
     return ret;
@@ -1254,6 +1257,7 @@ static int usb_host_scan_sys(void *opaque, USBScanFunc *func)
  */
 static int usb_host_scan(void *opaque, USBScanFunc *func)
 {
+    Monitor *mon = cur_mon;
     FILE *f = 0;
     DIR *dir = 0;
     int ret = 0;
@@ -1292,14 +1296,15 @@ static int usb_host_scan(void *opaque, USBScanFunc *func)
         }
     found_devices:
         if (!usb_fs_type) {
-            term_printf("husb: unable to access USB devices\n");
+            monitor_printf(mon, "husb: unable to access USB devices\n");
             return -ENOENT;
         }
 
         /* the module setting (used later for opening devices) */
         usb_host_device_path = qemu_mallocz(strlen(devpath)+1);
         strcpy(usb_host_device_path, devpath);
-        term_printf("husb: using %s file-system with %s\n", fs_type[usb_fs_type], usb_host_device_path);
+        monitor_printf(mon, "husb: using %s file-system with %s\n",
+                       fs_type[usb_fs_type], usb_host_device_path);
     }
 
     switch (usb_fs_type) {
@@ -1606,6 +1611,7 @@ static void usb_info_device(int bus_num, int addr, int class_id,
                             const char *product_name,
                             int speed)
 {
+    Monitor *mon = cur_mon;
     const char *class_str, *speed_str;
 
     switch(speed) {
@@ -1623,17 +1629,17 @@ static void usb_info_device(int bus_num, int addr, int class_id,
         break;
     }
 
-    term_printf("  Device %d.%d, speed %s Mb/s\n",
+    monitor_printf(mon, "  Device %d.%d, speed %s Mb/s\n",
                 bus_num, addr, speed_str);
     class_str = usb_class_str(class_id);
     if (class_str)
-        term_printf("    %s:", class_str);
+        monitor_printf(mon, "    %s:", class_str);
     else
-        term_printf("    Class %02x:", class_id);
-    term_printf(" USB device %04x:%04x", vendor_id, product_id);
+        monitor_printf(mon, "    Class %02x:", class_id);
+    monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id);
     if (product_name[0] != '\0')
-        term_printf(", %s", product_name);
-    term_printf("\n");
+        monitor_printf(mon, ", %s", product_name);
+    monitor_printf(mon, "\n");
 }
 
 static int usb_host_info_device(void *opaque, int bus_num, int addr,
@@ -1663,20 +1669,21 @@ static void hex2str(int val, char *str, size_t size)
         snprintf(str, size, "%x", val);
 }
 
-void usb_host_info(void)
+void usb_host_info(Monitor *mon)
 {
     struct USBAutoFilter *f;
 
     usb_host_scan(NULL, usb_host_info_device);
 
     if (usb_auto_filter)
-        term_printf("  Auto filters:\n");
+        monitor_printf(mon, "  Auto filters:\n");
     for (f = usb_auto_filter; f; f = f->next) {
         char bus[10], addr[10], vid[10], pid[10];
         dec2str(f->bus_num, bus, sizeof(bus));
         dec2str(f->addr, addr, sizeof(addr));
         hex2str(f->vendor_id, vid, sizeof(vid));
         hex2str(f->product_id, pid, sizeof(pid));
-    	term_printf("    Device %s.%s ID %s:%s\n", bus, addr, vid, pid);
+        monitor_printf(mon, "    Device %s.%s ID %s:%s\n",
+                       bus, addr, vid, pid);
     }
 }