[PATCH v4 07/20] qtest: add in-process incoming command handler

["Oleinik, Alexander" <alxndr@bu.edu>]

From: Alexander Oleinik <alxndr@bu.edu>

The handler allows a qtest client to send commands to the server by
directly calling a function, rather than using a file/CharBackend

Signed-off-by: Alexander Oleinik <alxndr@bu.edu>
---
 include/sysemu/qtest.h |  1 +
 qtest.c                | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/include/sysemu/qtest.h b/include/sysemu/qtest.h
index fda7000d2c..3f365522d5 100644
--- a/include/sysemu/qtest.h
+++ b/include/sysemu/qtest.h
@@ -28,5 +28,6 @@ void qtest_server_init(const char *qtest_chrdev, const char *qtest_log, Error **
 
 void qtest_server_set_tx_handler(void (*send)(void *, const char *, size_t),
                                  void *opaque);
+void qtest_server_inproc_recv(void *opaque, const char *buf, size_t size);
 
 #endif
diff --git a/qtest.c b/qtest.c
index ae7e6d779d..9fbfa0f08f 100644
--- a/qtest.c
+++ b/qtest.c
@@ -802,3 +802,16 @@ bool qtest_driver(void)
 {
     return qtest_chr.chr != NULL;
 }
+
+void qtest_server_inproc_recv(void *dummy, const char *buf, size_t size)
+{
+    static GString *gstr;
+    if (!gstr) {
+        gstr = g_string_new(NULL);
+    }
+    g_string_append(gstr, buf);
+    if (gstr->str[gstr->len - 1] == '\n') {
+        qtest_process_inbuf(NULL, gstr);
+        g_string_free(gstr, true);
+    }
+}
-- 
2.23.0