[RFC,v4,22/49] multi-process: remote: use fd for socket from parent process

Commit Message

Jag Raman Oct. 24, 2019, 9:09 a.m. UTC

From: Elena Ufimtseva <[e-mail]>

Signed-off-by: Jagannathan Raman <[e-mail]>
Signed-off-by: John G Johnson <[e-mail]>
Signed-off-by: Elena Ufimtseva <[e-mail]>
---
 remote/remote-main.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

Patch

diff --git a/remote/remote-main.c b/remote/remote-main.c
index 5b3ffd8..cb2829e 100644
--- a/remote/remote-main.c
+++ b/remote/remote-main.c
@@ -64,6 +64,7 @@ 
 #include "block/qdict.h"
 #include "qapi/qmp/qlist.h"
 #include "qemu/log.h"
+#include "qemu/cutils.h"
 
 static MPQemuLinkState *mpqemu_link;
 PCIDevice *remote_pci_dev;
@@ -440,6 +441,7 @@  finalize_loop:
 int main(int argc, char *argv[])
 {
     Error *err = NULL;
+    int fd = -1;
 
     module_call_init(MODULE_INIT_QOM);
 
@@ -462,7 +464,13 @@  int main(int argc, char *argv[])
         return -1;
     }
 
-    mpqemu_init_channel(mpqemu_link, &mpqemu_link->com, STDIN_FILENO);
+    fd = qemu_parse_fd(argv[1]);
+    if (fd == -1) {
+        printf("Failed to parse fd for remote process.\n");
+        return -EINVAL;
+    }
+
+    mpqemu_init_channel(mpqemu_link, &mpqemu_link->com, fd);
     mpqemu_link_set_callback(mpqemu_link, process_msg);
 
     mpqemu_start_coms(mpqemu_link);