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action-scripts: Add pre-stream hook

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This hook allows to start image streamer process from an action script.

Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>
This commit is contained in:
Radostin Stoyanov
2023-04-02 15:45:05 +01:00
committed by Andrei Vagin
parent c6ac396aa3
commit 2ac15e3ad0
3 changed files with 10 additions and 0 deletions
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1
criu/action-scripts.c
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@@ -18,6 +18,7 @@
#include "common/scm.h" #include "common/scm.h"
static const char *action_names[ACT_MAX] = { static const char *action_names[ACT_MAX] = {
[ACT_PRE_STREAM] = "pre-stream",
[ACT_PRE_DUMP] = "pre-dump", [ACT_PRE_DUMP] = "pre-dump",
[ACT_POST_DUMP] = "post-dump", [ACT_POST_DUMP] = "post-dump",
[ACT_PRE_RESTORE] = "pre-restore", [ACT_PRE_RESTORE] = "pre-restore",

8
criu/img-streamer.c
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@@ -12,6 +12,7 @@
#include "rst-malloc.h" #include "rst-malloc.h"
#include "common/scm.h" #include "common/scm.h"
#include "common/lock.h" #include "common/lock.h"
#include "action-scripts.h"
/* /*
* We use different path names for the dump and restore sockets because: * We use different path names for the dump and restore sockets because:
@@ -49,10 +50,17 @@ static const char *socket_name_for_mode(int mode)
int img_streamer_init(const char *image_dir, int mode) int img_streamer_init(const char *image_dir, int mode)
{ {
struct sockaddr_un addr; struct sockaddr_un addr;
int pre_stream_ret;
int sockfd; int sockfd;
img_streamer_mode = mode; img_streamer_mode = mode;
pre_stream_ret = run_scripts(ACT_PRE_STREAM);
if (pre_stream_ret != 0) {
pr_err("Pre-stream script failed with %d!\n", pre_stream_ret);
return -1;
}
sockfd = socket(AF_UNIX, SOCK_STREAM, 0); sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
if (sockfd < 0) { if (sockfd < 0) {
pr_perror("Unable to instantiate UNIX socket"); pr_perror("Unable to instantiate UNIX socket");

1
criu/include/action-scripts.h
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@@ -4,6 +4,7 @@
#include "asm/int.h" #include "asm/int.h"
enum script_actions { enum script_actions {
ACT_PRE_STREAM,
ACT_PRE_DUMP, ACT_PRE_DUMP,
ACT_POST_DUMP, ACT_POST_DUMP,
ACT_PRE_RESTORE, ACT_PRE_RESTORE,