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Adding --pre-dump-mode option

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Two modes of pre-dump algorithm:
    1) splicing memory by parasite
        --pre-dump-mode=splice (default)
    2) using process_vm_readv syscall
        --pre-dump-mode=read

Signed-off-by: Abhishek Dubey <dubeyabhishek777@gmail.com>
Signed-off-by: Andrei Vagin <avagin@gmail.com>
This commit is contained in:
Abhishek Dubey 2019-10-03 19:39:18 +05:30 • committed by Andrei Vagin
parent 576a99f492
commit 20d4920a8b
10 changed files with 86 additions and 2 deletions
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15
lib/c/criu.c
View file

@ -336,6 +336,21 @@ int criu_set_parent_images(const char *path)
return criu_local_set_parent_images(global_opts, path);
}
int criu_local_set_pre_dump_mode(criu_opts *opts, enum criu_pre_dump_mode mode)
{
opts->rpc->has_pre_dump_mode = true;
if (mode == CRIU_PRE_DUMP_SPLICE || mode == CRIU_PRE_DUMP_READ) {
opts->rpc->pre_dump_mode = mode;
return 0;
}
return -1;
}
int criu_set_pre_dump_mode(enum criu_pre_dump_mode mode)
{
return criu_local_set_pre_dump_mode(global_opts, mode);
}
void criu_local_set_track_mem(criu_opts *opts, bool track_mem)
{
opts->rpc->has_track_mem = true;

7
lib/c/criu.h
View file

@ -43,6 +43,11 @@ enum criu_cg_mode {
CRIU_CG_MODE_DEFAULT,
};
enum criu_pre_dump_mode {
CRIU_PRE_DUMP_SPLICE = 1,
CRIU_PRE_DUMP_READ = 2
};
int criu_set_service_address(const char *path);
void criu_set_service_fd(int fd);
int criu_set_service_binary(const char *path);
@ -95,6 +100,7 @@ int criu_add_irmap_path(const char *path);
int criu_add_inherit_fd(int fd, const char *key);
int criu_add_external(const char *key);
int criu_set_page_server_address_port(const char *address, int port);
int criu_set_pre_dump_mode(enum criu_pre_dump_mode mode);
/*
* The criu_notify_arg_t na argument is an opaque
@ -211,6 +217,7 @@ int criu_local_add_cg_yard(criu_opts *opts, const char *path);
int criu_local_add_inherit_fd(criu_opts *opts, int fd, const char *key);
int criu_local_add_external(criu_opts *opts, const char *key);
int criu_local_set_page_server_address_port(criu_opts *opts, const char *address, int port);
int criu_local_set_pre_dump_mode(criu_opts *opts, enum criu_pre_dump_mode mode);
void criu_local_set_notify_cb(criu_opts *opts, int (*cb)(char *action, criu_notify_arg_t na));