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polldaemon: separate daemon_parms initialisation

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This commit is contained in:
Ondrej Kozina 2015-03-17 18:40:43 +01:00
parent 3929b00466
commit 7abb7894e4
1 changed files with 44 additions and 34 deletions
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78
tools/polldaemon.c
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@ -276,50 +276,26 @@ static void _poll_for_all_vgs(struct cmd_context *cmd,
* if it was requested.
*/
static int _poll_daemon(struct cmd_context *cmd, const char *name,
const char *uuid, unsigned background, uint64_t lv_type,
struct poll_functions *poll_fns,
const char *progress_title)
const char *uuid, struct daemon_parms *parms)
{
struct processing_handle *handle = NULL;
struct daemon_parms parms;
int daemon_mode = 0;
int ret = ECMD_PROCESSED;
sign_t interval_sign;
parms.aborting = arg_is_set(cmd, abort_ARG);
parms.background = background;
interval_sign = arg_sign_value(cmd, interval_ARG, SIGN_NONE);
if (interval_sign == SIGN_MINUS) {
log_error("Argument to --interval cannot be negative");
return EINVALID_CMD_LINE;
}
parms.interval = arg_uint_value(cmd, interval_ARG,
find_config_tree_int(cmd, activation_polling_interval_CFG, NULL));
parms.wait_before_testing = (interval_sign == SIGN_PLUS);
parms.progress_display = 1;
parms.progress_title = progress_title;
parms.lv_type = lv_type;
parms.poll_fns = poll_fns;
if (parms.interval && !parms.aborting)
log_verbose("Checking progress %s waiting every %u seconds",
(parms.wait_before_testing ? "after" : "before"),
parms.interval);
if (!parms.interval) {
parms.progress_display = 0;
if (!parms->interval) {
parms->progress_display = 0;
/* FIXME Disabled multiple-copy wait_event */
if (!name)
parms.interval = find_config_tree_int(cmd, activation_polling_interval_CFG, NULL);
parms->interval = find_config_tree_int(cmd, activation_polling_interval_CFG, NULL);
}
if (parms.background) {
if (parms->background) {
daemon_mode = become_daemon(cmd, 0);
if (daemon_mode == 0)
return ECMD_PROCESSED; /* Parent */
else if (daemon_mode == 1)
parms.progress_display = 0; /* Child */
parms->progress_display = 0; /* Child */
/* FIXME Use wait_event (i.e. interval = 0) and */
/* fork one daemon per copy? */
}
@ -328,7 +304,7 @@ static int _poll_daemon(struct cmd_context *cmd, const char *name,
* Process one specific task or all incomplete tasks?
*/
if (name) {
if (!_wait_for_single_lv(cmd, name, uuid, &parms)) {
if (!_wait_for_single_lv(cmd, name, uuid, parms)) {
stack;
ret = ECMD_FAILED;
}
@ -337,12 +313,12 @@ static int _poll_daemon(struct cmd_context *cmd, const char *name,
log_error("Failed to initialize processing handle.");
ret = ECMD_FAILED;
} else {
handle->custom_handle = &parms;
handle->custom_handle = parms;
_poll_for_all_vgs(cmd, handle);
}
}
if (parms.background && daemon_mode == 1) {
if (parms->background && daemon_mode == 1) {
destroy_processing_handle(cmd, handle);
/*
* child was successfully forked:
@ -358,10 +334,44 @@ static int _poll_daemon(struct cmd_context *cmd, const char *name,
return ret;
}
static int _daemon_parms_init(struct cmd_context *cmd, struct daemon_parms *parms,
unsigned background, struct poll_functions *poll_fns,
const char *progress_title, uint64_t lv_type)
{
sign_t interval_sign;
parms->aborting = arg_is_set(cmd, abort_ARG);
parms->background = background;
interval_sign = arg_sign_value(cmd, interval_ARG, SIGN_NONE);
if (interval_sign == SIGN_MINUS) {
log_error("Argument to --interval cannot be negative.");
return 0;
}
parms->interval = arg_uint_value(cmd, interval_ARG,
find_config_tree_int(cmd, activation_polling_interval_CFG, NULL));
parms->wait_before_testing = (interval_sign == SIGN_PLUS);
parms->progress_display = 1;
parms->progress_title = progress_title;
parms->lv_type = lv_type;
parms->poll_fns = poll_fns;
if (parms->interval && !parms->aborting)
log_verbose("Checking progress %s waiting every %u seconds.",
(parms->wait_before_testing ? "after" : "before"),
parms->interval);
return 1;
}
int poll_daemon(struct cmd_context *cmd, const char *name, const char *uuid,
unsigned background,
uint64_t lv_type, struct poll_functions *poll_fns,
const char *progress_title)
{
return _poll_daemon(cmd, name, uuid, background, lv_type, poll_fns, progress_title);
struct daemon_parms parms;
if (!_daemon_parms_init(cmd, &parms, background, poll_fns, progress_title, lv_type))
return_EINVALID_CMD_LINE;
return _poll_daemon(cmd, name, uuid, &parms);
}