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replicant-frameworks_native
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Split app move into separate copy/delete steps. 

App movement now has three distinct stages: copying, scanning, and
cleanup.  Previously, a battery pull late in the move process would
end up with packages.xml pointing at the old location which had been
torn down.  Now, we update packages.xml to point at the new location
as the "source of truth" before we start deleting the old location.

Bug: 21831336
Change-Id: I62b8916c673265c240e2574ea968cdce5a7a0074
This commit is contained in:
Jeff Sharkey 2015-07-07 13:31:37 -07:00
parent 56105b2f72
commit 31f08986f8
3 changed files with 8 additions and 18 deletions
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18
cmds/installd/commands.cpp
View File

@ -177,7 +177,7 @@ int make_user_data(const char *uuid, const char *pkgname, uid_t uid, userid_t us
return 0;
}
int move_complete_app(const char *from_uuid, const char *to_uuid,
int copy_complete_app(const char *from_uuid, const char *to_uuid,
const char *package_name, const char *data_app_name, appid_t appid,
const char* seinfo) {
std::vector<userid_t> users = get_known_users(from_uuid);
@ -264,19 +264,9 @@ int move_complete_app(const char *from_uuid, const char *to_uuid,
}
}
// Delete old app and data
{
std::string from(create_data_app_package_path(from_uuid, data_app_name));
if (delete_dir_contents(from.c_str(), 1, NULL) != 0) {
LOG(WARNING) << "Failed to delete " << from;
}
}
for (auto user : users) {
std::string from(create_data_user_package_path(from_uuid, user, package_name));
if (delete_dir_contents(from.c_str(), 1, NULL) != 0) {
LOG(WARNING) << "Failed to delete " << from;
}
}
// We let the framework scan the new location and persist that before
// deleting the data in the old location; this ordering ensures that
// we can recover from things like battery pulls.
return 0;
fail:

6
cmds/installd/installd.cpp
View File

@ -124,10 +124,10 @@ static int do_rm_user_data(char **arg, char reply[REPLY_MAX] __unused)
return delete_user_data(parse_null(arg[0]), arg[1], atoi(arg[2])); /* uuid, pkgname, userid */
}
static int do_mv_complete_app(char **arg, char reply[REPLY_MAX] __unused)
static int do_cp_complete_app(char **arg, char reply[REPLY_MAX] __unused)
{
// from_uuid, to_uuid, package_name, data_app_name, appid, seinfo
return move_complete_app(parse_null(arg[0]), parse_null(arg[1]), arg[2], arg[3], atoi(arg[4]), arg[5]);
return copy_complete_app(parse_null(arg[0]), parse_null(arg[1]), arg[2], arg[3], atoi(arg[4]), arg[5]);
}
static int do_mk_user_data(char **arg, char reply[REPLY_MAX] __unused)
@ -206,7 +206,7 @@ struct cmdinfo cmds[] = {
{ "rmcodecache", 3, do_rm_code_cache },
{ "getsize", 8, do_get_size },
{ "rmuserdata", 3, do_rm_user_data },
{ "mvcompleteapp", 6, do_mv_complete_app },
{ "cpcompleteapp", 6, do_cp_complete_app },
{ "movefiles", 0, do_movefiles },
{ "linklib", 4, do_linklib },
{ "mkuserdata", 5, do_mk_user_data },

2
cmds/installd/installd.h
View File

@ -225,7 +225,7 @@ int fix_uid(const char *uuid, const char *pkgname, uid_t uid, gid_t gid);
int delete_user_data(const char *uuid, const char *pkgname, userid_t userid);
int make_user_data(const char *uuid, const char *pkgname, uid_t uid,
userid_t userid, const char* seinfo);
int move_complete_app(const char* from_uuid, const char *to_uuid,
int copy_complete_app(const char* from_uuid, const char *to_uuid,
const char *package_name, const char *data_app_name, appid_t appid,
const char* seinfo);
int make_user_config(userid_t userid);