[Qemu-devel] [RFC v3 PATCH 40/45] multi-process/mon: Refactor monitor/chardev functions out of vl.c

[Jagannathan Raman]

Some of the initialization helper functions w.r.t monitor & chardev
in vl.c are also used by the remote process. Therefore, these functions
are refactored into a shared file that both QEMU & remote process
could use.

Signed-off-by: Elena Ufimtseva <address@hidden>
Signed-off-by: John G Johnson <address@hidden>
Signed-off-by: Jagannathan Raman <address@hidden>
---
 New patch in v3

 vl-parse.c | 92 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 vl.c       | 91 -------------------------------------------------------------
 vl.h       |  4 +++
 3 files changed, 96 insertions(+), 91 deletions(-)

diff --git a/vl-parse.c b/vl-parse.c
index d3716d1..bee904d 100644
--- a/vl-parse.c
+++ b/vl-parse.c
@@ -155,3 +155,95 @@ int device_init_func(void *opaque, QemuOpts *opts, Error 
**errp)
     object_unref(OBJECT(dev));
     return 0;
 }
+
+void monitor_parse(const char *optarg, const char *mode, bool pretty)
+{
+    static int monitor_device_index;
+    QemuOpts *opts;
+    const char *p;
+    char label[32];
+
+    if (strstart(optarg, "chardev:", &p)) {
+        snprintf(label, sizeof(label), "%s", p);
+    } else {
+        snprintf(label, sizeof(label), "compat_monitor%d",
+                 monitor_device_index);
+        opts = qemu_chr_parse_compat(label, optarg, true);
+        if (!opts) {
+            error_report("parse error: %s", optarg);
+            exit(1);
+        }
+    }
+
+    opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
+    qemu_opt_set(opts, "mode", mode, &error_abort);
+    qemu_opt_set(opts, "chardev", label, &error_abort);
+    if (!strcmp(mode, "control")) {
+        qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
+    } else {
+        assert(pretty == false);
+    }
+    monitor_device_index++;
+}
+
+int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
+{
+    Chardev *chr;
+    bool qmp;
+    bool pretty = false;
+    const char *chardev;
+    const char *mode;
+
+    mode = qemu_opt_get(opts, "mode");
+    if (mode == NULL) {
+        mode = "readline";
+    }
+    if (strcmp(mode, "readline") == 0) {
+        qmp = false;
+    } else if (strcmp(mode, "control") == 0) {
+        qmp = true;
+    } else {
+        error_setg(errp, "unknown monitor mode \"%s\"", mode);
+        return -1;
+    }
+
+    if (!qmp && qemu_opt_get(opts, "pretty")) {
+        warn_report("'pretty' is deprecated for HMP monitors, it has no effect 
"
+                    "and will be removed in future versions");
+    }
+    if (qemu_opt_get_bool(opts, "pretty", 0)) {
+        pretty = true;
+    }
+
+    chardev = qemu_opt_get(opts, "chardev");
+    if (!chardev) {
+        error_report("chardev is required");
+        exit(1);
+    }
+    chr = qemu_chr_find(chardev);
+    if (chr == NULL) {
+        error_setg(errp, "chardev \"%s\" not found", chardev);
+        return -1;
+    }
+
+    if (qmp) {
+        monitor_init_qmp(chr, pretty);
+    } else {
+        monitor_init_hmp(chr, true);
+    }
+    return 0;
+}
+
+int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
+{
+    Error *local_err = NULL;
+
+    if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
+        if (local_err) {
+            error_propagate(errp, local_err);
+            return -1;
+        }
+        exit(0);
+    }
+    return 0;
+}
diff --git a/vl.c b/vl.c
index 08e9c09..3c03405 100644
--- a/vl.c
+++ b/vl.c
@@ -2264,19 +2264,6 @@ static int device_help_func(void *opaque, QemuOpts 
*opts, Error **errp)
     return qdev_device_help(opts);
 }
 
-static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
-{
-    Error *local_err = NULL;
-
-    if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
-        if (local_err) {
-            error_propagate(errp, local_err);
-            return -1;
-        }
-        exit(0);
-    }
-    return 0;
-}
 
 #ifdef CONFIG_VIRTFS
 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
@@ -2285,84 +2272,6 @@ static int fsdev_init_func(void *opaque, QemuOpts *opts, 
Error **errp)
 }
 #endif
 
-static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
-{
-    Chardev *chr;
-    bool qmp;
-    bool pretty = false;
-    const char *chardev;
-    const char *mode;
-
-    mode = qemu_opt_get(opts, "mode");
-    if (mode == NULL) {
-        mode = "readline";
-    }
-    if (strcmp(mode, "readline") == 0) {
-        qmp = false;
-    } else if (strcmp(mode, "control") == 0) {
-        qmp = true;
-    } else {
-        error_setg(errp, "unknown monitor mode \"%s\"", mode);
-        return -1;
-    }
-
-    if (!qmp && qemu_opt_get(opts, "pretty")) {
-        warn_report("'pretty' is deprecated for HMP monitors, it has no effect 
"
-                    "and will be removed in future versions");
-    }
-    if (qemu_opt_get_bool(opts, "pretty", 0)) {
-        pretty = true;
-    }
-
-    chardev = qemu_opt_get(opts, "chardev");
-    if (!chardev) {
-        error_report("chardev is required");
-        exit(1);
-    }
-    chr = qemu_chr_find(chardev);
-    if (chr == NULL) {
-        error_setg(errp, "chardev \"%s\" not found", chardev);
-        return -1;
-    }
-
-    if (qmp) {
-        monitor_init_qmp(chr, pretty);
-    } else {
-        monitor_init_hmp(chr, true);
-    }
-    return 0;
-}
-
-static void monitor_parse(const char *optarg, const char *mode, bool pretty)
-{
-    static int monitor_device_index = 0;
-    QemuOpts *opts;
-    const char *p;
-    char label[32];
-
-    if (strstart(optarg, "chardev:", &p)) {
-        snprintf(label, sizeof(label), "%s", p);
-    } else {
-        snprintf(label, sizeof(label), "compat_monitor%d",
-                 monitor_device_index);
-        opts = qemu_chr_parse_compat(label, optarg, true);
-        if (!opts) {
-            error_report("parse error: %s", optarg);
-            exit(1);
-        }
-    }
-
-    opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
-    qemu_opt_set(opts, "mode", mode, &error_abort);
-    qemu_opt_set(opts, "chardev", label, &error_abort);
-    if (!strcmp(mode, "control")) {
-        qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
-    } else {
-        assert(pretty == false);
-    }
-    monitor_device_index++;
-}
-
 struct device_config {
     enum {
         DEV_USB,       /* -usbdevice     */
diff --git a/vl.h b/vl.h
index 8c40fed..21ca747 100644
--- a/vl.h
+++ b/vl.h
@@ -50,5 +50,9 @@ int device_init_func(void *opaque, QemuOpts *opts, Error 
**errp);
 int rdrive_init_func(void *opaque, QemuOpts *opts, Error **errp);
 int rdevice_init_func(void *opaque, QemuOpts *opts, Error **errp);
 
+void monitor_parse(const char *optarg, const char *mode, bool pretty);
+int mon_init_func(void *opaque, QemuOpts *opts, Error **errp);
+int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp);
+
 #endif /* VL_H */
 
-- 
1.8.3.1