diff options
| -rw-r--r-- | qga/commands-posix.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 1559753d85..cdb825993f 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1517,6 +1517,63 @@ static int run_process_child(const char *command[], Error **errp) return -1; } +static bool systemd_supports_mode(SuspendMode mode, Error **errp) +{ + Error *local_err = NULL; + const char *systemctl_args[3] = {"systemd-hibernate", "systemd-suspend", + "systemd-hybrid-sleep"}; + const char *cmd[4] = {"systemctl", "status", systemctl_args[mode], NULL}; + int status; + + status = run_process_child(cmd, &local_err); + + /* + * systemctl status uses LSB return codes so we can expect + * status > 0 and be ok. To assert if the guest has support + * for the selected suspend mode, status should be < 4. 4 is + * the code for unknown service status, the return value when + * the service does not exist. A common value is status = 3 + * (program is not running). + */ + if (status > 0 && status < 4) { + return true; + } + + if (local_err) { + error_propagate(errp, local_err); + } + + return false; +} + +static void systemd_suspend(SuspendMode mode, Error **errp) +{ + Error *local_err = NULL; + const char *systemctl_args[3] = {"hibernate", "suspend", "hybrid-sleep"}; + const char *cmd[3] = {"systemctl", systemctl_args[mode], NULL}; + int status; + + status = run_process_child(cmd, &local_err); + + if (status == 0) { + return; + } + + if ((status == -1) && !local_err) { + error_setg(errp, "the helper program 'systemctl %s' was not found", + systemctl_args[mode]); + return; + } + + if (local_err) { + error_propagate(errp, local_err); + } else { + error_setg(errp, "the helper program 'systemctl %s' returned an " + "unexpected exit status code (%d)", + systemctl_args[mode], status); + } +} + static bool pmutils_supports_mode(SuspendMode mode, Error **errp) { Error *local_err = NULL; @@ -1660,6 +1717,14 @@ static void bios_supports_mode(SuspendMode mode, Error **errp) Error *local_err = NULL; bool ret; + ret = systemd_supports_mode(mode, &local_err); + if (ret) { + return; + } + if (local_err) { + error_propagate(errp, local_err); + return; + } ret = pmutils_supports_mode(mode, &local_err); if (ret) { return; @@ -1689,6 +1754,13 @@ static void guest_suspend(SuspendMode mode, Error **errp) return; } + systemd_suspend(mode, &local_err); + if (!local_err) { + return; + } + + error_free(local_err); + pmutils_suspend(mode, &local_err); if (!local_err) { return; |