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Timeouts via default mini_event extension

This commit is contained in:
Willem Toorop 2014-10-06 23:04:12 +02:00
parent 58b3e553de
commit 54e0b42dcd
8 changed files with 230 additions and 273 deletions
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336
src/context.c
View File

@ -65,7 +65,6 @@ getdns_return_t destroy_local_hosts(struct getdns_context *context);
static struct getdns_list *create_default_root_servers(void);
static getdns_return_t set_os_defaults(struct getdns_context *);
static int transaction_id_cmp(const void *, const void *);
static int timeout_cmp(const void *, const void *);
static int local_host_cmp(const void *, const void *);
static void dispatch_updated(struct getdns_context *, uint16_t);
static void cancel_dns_req(getdns_dns_req *);
@ -486,35 +485,6 @@ transaction_id_cmp(const void *id1, const void *id2)
}
}
static int
timeout_cmp(const void *to1, const void *to2)
{
if (to1 == NULL && to2 == NULL) {
return 0;
} else if (to1 == NULL && to2 != NULL) {
return 1;
} else if (to1 != NULL && to2 == NULL) {
return -1;
} else {
const getdns_timeout_data_t* t1 = (const getdns_timeout_data_t*) to1;
const getdns_timeout_data_t* t2 = (const getdns_timeout_data_t*) to2;
if (t1->timeout_time.tv_sec < t2->timeout_time.tv_sec) {
return -1;
} else if (t1->timeout_time.tv_sec > t2->timeout_time.tv_sec) {
return 1;
} else {
/* compare usec.. */
if (t1->timeout_time.tv_usec < t2->timeout_time.tv_usec) {
return -1;
} else if (t1->timeout_time.tv_usec > t2->timeout_time.tv_usec) {
return 1;
} else {
return transaction_id_cmp(&t1->transaction_id, &t2->transaction_id);
}
}
}
}
static int
local_host_cmp(const void *id1, const void *id2)
{
@ -547,6 +517,99 @@ create_ldns_rbtree(getdns_context * context,
return result;
}
/******************************************************************************
******************************************************************************
*****
***** Start of mini_event extension
***** TODO: Move to own source file
*****/
/** call timeouts handlers, and return how long to wait for next one or -1 */
void getdns_handle_timeouts(struct getdns_event_base* base,
struct timeval* now, struct timeval* wait);
/** call select and callbacks for that */
int getdns_handle_select(struct getdns_event_base* base, struct timeval* wait);
static getdns_return_t
getdns_mini_event_cleanup(getdns_context *context, void *ext)
{
getdns_mini_event_extension *e = (getdns_mini_event_extension *)ext;
/* TODO: Cleanup all events? Maybe not... */
getdns_event_base_free(e->base);
return GETDNS_RETURN_GOOD;
}
static void
getdns_mini_event_timeout_cb(int fd, short bits, void *arg)
{
getdns_timeout_data_t* timeout_data = (getdns_timeout_data_t*)arg;
timeout_data->callback(timeout_data->userarg);
}
static getdns_return_t
getdns_mini_event_schedule_timeout(getdns_context *context, void *ext,
uint64_t timeout, getdns_timeout_data_t *timeout_data)
{
getdns_mini_event_extension *e = (getdns_mini_event_extension *)ext;
struct timeval tv;
struct getdns_event *ev;
tv.tv_sec = timeout / 1000;
tv.tv_usec = (timeout % 1000) * 1000;
ev = GETDNS_MALLOC(context->mf, struct getdns_event);
timeout_data->extension_timer = ev;
getdns_event_set(ev, -1, EV_TIMEOUT, getdns_mini_event_timeout_cb,
timeout_data);
(void) getdns_event_base_set(e->base, ev);
(void) getdns_event_add(ev, &tv);
return GETDNS_RETURN_GOOD;
}
static getdns_return_t
getdns_mini_event_clear_timeout(getdns_context *context, void *ext, void *timer)
{
/* getdns_mini_event_extension *e = (getdns_mini_event_extension *)ext;
*/
struct getdns_event *ev = (struct getdns_event *)timer;
(void) getdns_event_del(ev);
GETDNS_FREE(context->mf, ev);
return GETDNS_RETURN_GOOD;
}
static getdns_return_t
getdns_mini_event_request_count_changed(getdns_context *context,
uint32_t request_count, void *ext)
{
getdns_mini_event_extension *e = (getdns_mini_event_extension *)ext;
if (request_count == 0)
(void) getdns_event_del(&e->ub_event);
return GETDNS_RETURN_GOOD;
}
getdns_return_t
getdns_mini_event_extension_init(getdns_mini_event_extension *e)
{
e->base = getdns_event_init(&e->time_secs, &e->time_tv);
if (!e->base)
return GETDNS_RETURN_MEMORY_ERROR;
e->ub_event.ev_fd = -1;
e->ext.cleanup_data = getdns_mini_event_cleanup;
e->ext.schedule_timeout = getdns_mini_event_schedule_timeout;
e->ext.clear_timeout = getdns_mini_event_clear_timeout;
e->ext.request_count_changed = getdns_mini_event_request_count_changed;
return GETDNS_RETURN_GOOD;
}
/*****
***** End of mini_event extension
*****
*****************************************************************************
*****************************************************************************/
/*
* getdns_context_create
*
@ -593,8 +656,6 @@ getdns_context_create_with_extended_memory_functions(
result->resolution_type_set = 0;
result->outbound_requests = create_ldns_rbtree(result, transaction_id_cmp);
result->timeouts_by_time = create_ldns_rbtree(result, timeout_cmp);
result->timeouts_by_id = create_ldns_rbtree(result, transaction_id_cmp);
result->local_hosts = create_ldns_rbtree(result, local_host_cmp);
@ -616,8 +677,10 @@ getdns_context_create_with_extended_memory_functions(
result->edns_version = 0;
result->edns_do_bit = 1;
result->extension = NULL;
result->extension_data = NULL;
result->extension = &result->mini_event_extension.ext;
result->extension_data = (void *)&result->mini_event_extension;
if (getdns_mini_event_extension_init(&result->mini_event_extension))
return GETDNS_RETURN_GENERIC_ERROR;
result->fchg_resolvconf = NULL;
result->fchg_hosts = NULL;
@ -634,8 +697,6 @@ getdns_context_create_with_extended_memory_functions(
result->has_ta = priv_getdns_parse_ta_file(NULL, NULL);
result->return_dnssec_status = GETDNS_EXTENSION_FALSE;
if (!result->outbound_requests ||
!result->timeouts_by_id ||
!result->timeouts_by_time ||
!result->local_hosts) {
getdns_context_destroy(result);
return GETDNS_RETURN_MEMORY_ERROR;
@ -743,10 +804,6 @@ getdns_context_destroy(struct getdns_context *context)
if (context->outbound_requests)
GETDNS_FREE(context->my_mf, context->outbound_requests);
if (context->timeouts_by_id)
GETDNS_FREE(context->my_mf, context->timeouts_by_id);
if (context->timeouts_by_time)
GETDNS_FREE(context->my_mf, context->timeouts_by_time);
if (context->local_hosts) {
ldns_traverse_postorder(context->local_hosts,
destroy_local_host, context);
@ -1833,92 +1890,41 @@ int getdns_context_fd(struct getdns_context* context) {
uint32_t
getdns_context_get_num_pending_requests(struct getdns_context* context,
struct timeval* next_timeout) {
struct timeval* next_timeout)
{
RETURN_IF_NULL(context, GETDNS_RETURN_INVALID_PARAMETER);
uint32_t r = context->outbound_requests->count;
if (r > 0) {
if (!context->extension && next_timeout) {
/* default is 1 second */
next_timeout->tv_sec = 1;
next_timeout->tv_usec = 0;
struct timeval now;
if (gettimeofday(&now, NULL) == 0) {
/* get the first timeout */
ldns_rbnode_t* first = ldns_rbtree_first(context->timeouts_by_time);
if (first) {
getdns_timeout_data_t* timeout_data = (getdns_timeout_data_t*) first->data;
/* subtract next_timeout from now */
if (timeout_data->timeout_time.tv_sec > now.tv_sec ||
(timeout_data->timeout_time.tv_sec == now.tv_sec &&
timeout_data->timeout_time.tv_usec >= now.tv_usec)) {
next_timeout->tv_sec = timeout_data->timeout_time.tv_sec - now.tv_sec;
if (timeout_data->timeout_time.tv_usec < now.tv_usec) {
/* we only enter this condition when timeout_data.tv_sec > now.tv_sec */
next_timeout->tv_usec = (timeout_data->timeout_time.tv_usec + 100000) - now.tv_usec;
next_timeout->tv_sec--;
} else {
next_timeout->tv_usec = timeout_data->timeout_time.tv_usec - now.tv_usec;
}
} else {
/* timeout passed already */
/* usec already 0 per setting default */
next_timeout->tv_sec = 0;
if (context->outbound_requests->count &&
context->extension == (void *)&context->mini_event_extension.ext) {
if (gettimeofday(context->mini_event_extension.base->time_tv,
NULL) >= 0) {
*context->mini_event_extension.base->time_secs =(time_t)
context->mini_event_extension.base->time_tv->tv_sec;
getdns_handle_timeouts(
context->mini_event_extension.base,
context->mini_event_extension.base->time_tv,
next_timeout);
}
}
}
}
}
return r;
return context->outbound_requests->count;
}
/* process async reqs */
getdns_return_t getdns_context_process_async(struct getdns_context* context) {
getdns_return_t getdns_context_process_async(struct getdns_context* context)
{
RETURN_IF_NULL(context, GETDNS_RETURN_INVALID_PARAMETER);
context->processing = 1;
if (ub_poll(context->unbound_ctx)) {
if (ub_process(context->unbound_ctx) != 0) {
if (ub_poll(context->unbound_ctx) && ub_process(context->unbound_ctx)){
/* need an async return code? */
context->processing = 0;
return GETDNS_RETURN_GENERIC_ERROR;
}
}
// reset the processing flag
context->processing = 0;
if (context->extension != NULL) {
/* no need to process timeouts since it is delegated
* to the extension */
return GETDNS_RETURN_GOOD;
}
getdns_timeout_data_t key;
/* set to 0 so it is the last timeout if we have
* two with the same time */
key.transaction_id = 0;
if (gettimeofday(&key.timeout_time, NULL) != 0) {
return GETDNS_RETURN_GENERIC_ERROR;
}
ldns_rbnode_t* next_timeout = ldns_rbtree_first(context->timeouts_by_time);
getdns_return_t r = GETDNS_RETURN_GOOD;
while (next_timeout && r == GETDNS_RETURN_GOOD) {
getdns_timeout_data_t* timeout_data = (getdns_timeout_data_t*) next_timeout->data;
if (timeout_cmp(timeout_data, &key) > 0) {
/* no more timeouts need to be fired. */
break;
}
/* get the next_timeout */
next_timeout = ldns_rbtree_next(next_timeout);
/* delete the node */
/* timeout data and the timeouts_by_id node are freed in the clear_timeout */
ldns_rbnode_t* to_del = ldns_rbtree_delete(context->timeouts_by_time, timeout_data);
if (to_del) {
/* should always exist .. */
GETDNS_FREE(context->my_mf, to_del);
}
/* fire the timeout */
r = timeout_data->callback(timeout_data->userarg);
}
return r;
}
typedef struct timeout_accumulator {
@ -1951,9 +1957,10 @@ cancel_outstanding_requests(struct getdns_context* context, int fire_callback) {
getdns_return_t
getdns_extension_detach_eventloop(struct getdns_context* context)
{
RETURN_IF_NULL(context, GETDNS_RETURN_INVALID_PARAMETER);
getdns_return_t r = GETDNS_RETURN_GOOD;
if (context->extension) {
RETURN_IF_NULL(context, GETDNS_RETURN_INVALID_PARAMETER);
/* When called from within a callback, do not execute pending
* context destroys.
* The (other) callback handler will handle it.
@ -1971,7 +1978,6 @@ getdns_extension_detach_eventloop(struct getdns_context* context)
context->extension_data = NULL;
}
context->processing = 0;
}
return r;
}
@ -1991,100 +1997,36 @@ getdns_extension_set_eventloop(struct getdns_context* context,
}
getdns_return_t
getdns_context_schedule_timeout(struct getdns_context* context,
getdns_transaction_t id, uint64_t timeout, getdns_timeout_callback callback,
void* userarg) {
getdns_context_schedule_timeout(getdns_context* context, uint64_t timeout,
getdns_timeout_callback callback, void* userarg,
getdns_timeout_data_t *timeout_data)
{
RETURN_IF_NULL(context, GETDNS_RETURN_INVALID_PARAMETER);
RETURN_IF_NULL(callback, GETDNS_RETURN_INVALID_PARAMETER);
getdns_return_t result;
/* create a timeout */
getdns_timeout_data_t* timeout_data = GETDNS_MALLOC(context->my_mf, getdns_timeout_data_t);
if (!timeout_data) {
return GETDNS_RETURN_GENERIC_ERROR;
}
RETURN_IF_NULL(timeout_data, GETDNS_RETURN_INVALID_PARAMETER);
/* Initialize timeout_data struct */
timeout_data->context = context;
timeout_data->transaction_id = id;
timeout_data->callback = callback;
timeout_data->userarg = userarg;
timeout_data->extension_timer = NULL;
/* insert into transaction tree */
ldns_rbnode_t *node = GETDNS_MALLOC(context->my_mf, ldns_rbnode_t);
if (!node) {
GETDNS_FREE(context->my_mf, timeout_data);
return GETDNS_RETURN_GENERIC_ERROR;
}
node->key = &(timeout_data->transaction_id);
node->data = timeout_data;
node->left = NULL;
node->right = NULL;
if (!ldns_rbtree_insert(context->timeouts_by_id, node)) {
/* free the node */
GETDNS_FREE(context->my_mf, timeout_data);
GETDNS_FREE(context->my_mf, node);
return GETDNS_RETURN_GENERIC_ERROR;
}
if (context->extension) {
result = context->extension->schedule_timeout(context, context->extension_data,
timeout, timeout_data);
} else {
result = GETDNS_RETURN_GENERIC_ERROR;
if (gettimeofday(&timeout_data->timeout_time, NULL) == 0) {
/* timeout is in millis */
uint16_t num_secs = timeout / 1000;
uint16_t num_usecs = (timeout % 1000) * 1000;
timeout_data->timeout_time.tv_usec += num_usecs;
/* overflow check */
if (timeout_data->timeout_time.tv_usec > 1000000) {
timeout_data->timeout_time.tv_usec -= 1000000;
num_secs++;
}
timeout_data->timeout_time.tv_sec += num_secs;
ldns_rbnode_t* id_node = GETDNS_MALLOC(context->my_mf, ldns_rbnode_t);
if (id_node) {
id_node->key = timeout_data;
id_node->data = timeout_data;
id_node->left = NULL;
id_node->right = NULL;
if (!ldns_rbtree_insert(context->timeouts_by_time, id_node)) {
GETDNS_FREE(context->my_mf, id_node);
} else {
result = GETDNS_RETURN_GOOD;
}
}
}
}
if (result != GETDNS_RETURN_GOOD) {
GETDNS_FREE(context->my_mf, timeout_data);
GETDNS_FREE(context->my_mf, node);
}
return result;
return context->extension->schedule_timeout(context,
context->extension_data, timeout, timeout_data);
}
getdns_return_t
getdns_context_clear_timeout(struct getdns_context* context,
getdns_transaction_t id) {
getdns_context_clear_timeout(getdns_context* context,
getdns_timeout_data_t *timeout_data)
{
RETURN_IF_NULL(context, GETDNS_RETURN_INVALID_PARAMETER);
/* find the timeout_data by id */
ldns_rbnode_t* node = ldns_rbtree_delete(context->timeouts_by_id, &id);
if (!node) {
return GETDNS_RETURN_UNKNOWN_TRANSACTION;
}
getdns_timeout_data_t* timeout_data = (getdns_timeout_data_t*) node->data;
GETDNS_FREE(context->my_mf, node);
if (context->extension) {
context->extension->clear_timeout(context, context->extension_data,
timeout_data->extension_timer);
} else {
/* make sure it is removed from the timeout node */
ldns_rbnode_t* to_del = ldns_rbtree_delete(context->timeouts_by_time, timeout_data);
if (to_del) {
GETDNS_FREE(context->my_mf, to_del);
}
}
GETDNS_FREE(context->my_mf, timeout_data);
RETURN_IF_NULL(timeout_data, GETDNS_RETURN_INVALID_PARAMETER);
RETURN_IF_NULL(timeout_data->context, GETDNS_RETURN_GOOD);
context->extension->clear_timeout(context,
context->extension_data, timeout_data->extension_timer);
timeout_data->context = NULL;
return GETDNS_RETURN_GOOD;
}

29
src/context.h
View File

@ -39,7 +39,9 @@
#include "getdns/getdns.h"
#include "getdns/getdns_extra.h"
#include "config.h"
#include "types-internal.h"
#include "util/mini_event.h"
struct getdns_dns_req;
struct ldns_rbtree_t;
@ -80,6 +82,14 @@ typedef struct getdns_upstreams {
struct getdns_upstream upstreams[];
} getdns_upstreams;
typedef struct getdns_mini_event_extention {
getdns_eventloop_extension ext;
time_t time_secs;
struct timeval time_tv;
struct getdns_event_base *base;
struct getdns_event ub_event;
} getdns_mini_event_extension;
struct getdns_context {
/* Context values */
getdns_resolution_t resolution_type;
@ -139,13 +149,8 @@ struct getdns_context {
*/
void* extension_data;
/*
* Timeout info one tree to manage timeout data
* keyed by transaction id. Second to manage by
* timeout time (ascending)
*/
struct ldns_rbtree_t *timeouts_by_id;
struct ldns_rbtree_t *timeouts_by_time;
/* The default extension */
getdns_mini_event_extension mini_event_extension;
/*
* state data used to detect changes to the system config files
@ -191,12 +196,12 @@ void getdns_bindata_destroy(
struct getdns_bindata *bindata);
/* timeout scheduling */
getdns_return_t getdns_context_schedule_timeout(struct getdns_context* context,
getdns_transaction_t id, uint64_t timeout, getdns_timeout_callback callback,
void* userarg);
getdns_return_t getdns_context_schedule_timeout(getdns_context* context,
uint64_t timeout, getdns_timeout_callback callback, void* userarg,
getdns_timeout_data_t *init_to_track);
getdns_return_t getdns_context_clear_timeout(struct getdns_context* context,
getdns_transaction_t id);
getdns_return_t getdns_context_clear_timeout(getdns_context* context,
getdns_timeout_data_t *timeout_data);
/* perform name resolution in /etc/hosts */
getdns_return_t getdns_context_local_namespace_resolve(getdns_dns_req* req,

13
src/general.c
View File

@ -83,8 +83,7 @@ ub_local_resolve_timeout(void *arg)
getdns_dns_req *dnsreq = cb_data->netreq->owner;
/* clear the timeout */
getdns_context_clear_timeout(dnsreq->context, dnsreq->local_timeout_id);
dnsreq->local_timeout_id = 0;
getdns_context_clear_timeout(dnsreq->context, &dnsreq->local_timeout);
/* just call ub_resolve_callback */
ub_resolve_callback(cb_data->netreq, cb_data->err, cb_data->ub_res);
@ -169,10 +168,8 @@ ub_resolve_callback(void* arg, int err, struct ub_result* ub_res)
cb_data->err = err;
cb_data->ub_res = ub_res;
dnsreq->local_timeout_id = ldns_get_random();
getdns_context_schedule_timeout(dnsreq->context,
dnsreq->local_timeout_id, 1, ub_local_resolve_timeout, cb_data);
getdns_context_schedule_timeout(dnsreq->context, 1,
ub_local_resolve_timeout, cb_data, &dnsreq->local_timeout);
return;
}
netreq->state = NET_REQ_FINISHED;
@ -240,8 +237,8 @@ getdns_general_ub(struct getdns_context *context,
// req->ev_base = ev_base;
// req->timeout = evtimer_new(ev_base, ub_resolve_timeout, req);
/* schedule the timeout */
getdns_context_schedule_timeout(context, req->trans_id,
context->timeout, ub_resolve_timeout, req);
getdns_context_schedule_timeout(context, context->timeout,
ub_resolve_timeout, req, &req->timeout);
/* issue the first network req */

11
src/request-internal.c
View File

@ -94,15 +94,11 @@ dns_req_free(getdns_dns_req * req)
net_req = next;
}
if (req->local_timeout_id != 0) {
getdns_context_clear_timeout(context, req->local_timeout_id);
}
getdns_context_clear_timeout(context, req->trans_id);
getdns_context_clear_timeout(context, &req->local_timeout);
getdns_context_clear_timeout(context, &req->timeout);
/* free strduped name */
GETDNS_FREE(req->my_mf, req->name);
GETDNS_FREE(req->my_mf, req);
}
@ -136,7 +132,8 @@ dns_req_new(struct getdns_context *context,
/* will be set by caller */
result->user_pointer = NULL;
result->user_callback = NULL;
result->local_timeout_id = 0;
memset(&result->timeout, 0, sizeof(getdns_timeout_data_t));
memset(&result->local_timeout, 0, sizeof(getdns_timeout_data_t));
/* check the specify_class extension */
if ((r = getdns_dict_get_int(extensions, "specify_class", &klass))

7
src/types-internal.h
View File

@ -39,6 +39,7 @@
#include <netinet/in.h>
#include <ldns/ldns.h>
#include "getdns/getdns.h"
#include "getdns/getdns_extra.h"
struct getdns_context;
/**
@ -172,7 +173,6 @@ typedef struct getdns_network_req
*/
typedef struct getdns_dns_req
{
/* name */
char *name;
@ -198,8 +198,9 @@ typedef struct getdns_dns_req
/* the transaction id */
getdns_transaction_t trans_id;
/* local timeout id */
getdns_transaction_t local_timeout_id;
getdns_timeout_data_t timeout;
/* Hack to prevent immediate callbacks */
getdns_timeout_data_t local_timeout;
/* dnssec status */
int return_dnssec_status;

17
src/util/import.sh
View File

@ -7,7 +7,22 @@ cd ub
for f in mini_event.c mini_event.h rbtree.c rbtree.h
do
wget http://unbound.net/svn/trunk/util/$f
sed -e 's/event_/getdns_event_/g' -e 's/signal_add/getdns_signal_add/g' -e 's/signal_del/getdns_signal_del/g' -e 's/struct event/struct getdns_event/g' -e 's/mini_ev_cmp/getdns_mini_ev_cmp/g' -e 's/#include "rbtree\.h"/#include "util\/rbtree.h"/g' -e 's/rbnode_/getdns_rbnode_/g' -e 's/rbtree_/getdns_rbtree_/g' -e 's/#include "fptr_wlist\.h"/#include "util\/fptr_wlist.h"/g' -e 's/#include "log\.h"/#include "util\/log.h"/g' $f > ../$f
sed -e 's/event_/getdns_event_/g' \
-e 's/signal_add/getdns_signal_add/g' \
-e 's/signal_del/getdns_signal_del/g' \
-e 's/signal_set/getdns_signal_set/g' \
-e 's/evtimer_/getdns_evtimer_/g' \
-e 's/struct event/struct getdns_event/g' \
-e 's/mini_ev_cmp/getdns_mini_ev_cmp/g' \
-e 's/static void handle_timeouts/void handle_timeouts/g' \
-e 's/handle_timeouts/getdns_handle_timeouts/g' \
-e 's/static int handle_select/int handle_select/g' \
-e 's/handle_select/getdns_handle_select/g' \
-e 's/#include "rbtree\.h"/#include "util\/rbtree.h"/g' \
-e 's/rbnode_/getdns_rbnode_/g' \
-e 's/rbtree_/getdns_rbtree_/g' \
-e 's/#include "fptr_wlist\.h"/#include "util\/fptr_wlist.h"/g' \
-e 's/#include "log\.h"/#include "util\/log.h"/g' $f > ../$f
done
cd ..
rm -r ub

8
src/util/mini_event.c
View File

@ -139,7 +139,7 @@ const char *getdns_event_get_method(void)
}
/** call timeouts handlers, and return how long to wait for next one or -1 */
static void handle_timeouts(struct getdns_event_base* base, struct timeval* now,
void getdns_handle_timeouts(struct getdns_event_base* base, struct timeval* now,
struct timeval* wait)
{
struct getdns_event* p;
@ -175,7 +175,7 @@ static void handle_timeouts(struct getdns_event_base* base, struct timeval* now,
}
/** call select and callbacks for that */
static int handle_select(struct getdns_event_base* base, struct timeval* wait)
int getdns_handle_select(struct getdns_event_base* base, struct timeval* wait)
{
fd_set r, w;
int ret, i;
@ -235,11 +235,11 @@ int getdns_event_base_dispatch(struct getdns_event_base* base)
while(!base->need_to_exit)
{
/* see if timeouts need handling */
handle_timeouts(base, base->time_tv, &wait);
getdns_handle_timeouts(base, base->time_tv, &wait);
if(base->need_to_exit)
return 0;
/* do select */
if(handle_select(base, &wait) < 0) {
if(getdns_handle_select(base, &wait) < 0) {
if(base->need_to_exit)
return 0;
return -1;

6
src/util/mini_event.h
View File

@ -155,16 +155,16 @@ int getdns_event_add(struct getdns_event *, struct timeval *);
int getdns_event_del(struct getdns_event *);
/** add a timer */
#define evtimer_add(ev, tv) getdns_event_add(ev, tv)
#define getdns_evtimer_add(ev, tv) getdns_event_add(ev, tv)
/** remove a timer */
#define evtimer_del(ev) getdns_event_del(ev)
#define getdns_evtimer_del(ev) getdns_event_del(ev)
/* uses different implementation. Cannot mix fd/timeouts and signals inside
* the same struct getdns_event. create several event structs for that. */
/** install signal handler */
int getdns_signal_add(struct getdns_event *, struct timeval *);
/** set signal event contents */
#define signal_set(ev, x, cb, arg) \
#define getdns_signal_set(ev, x, cb, arg) \
getdns_event_set(ev, x, EV_SIGNAL|EV_PERSIST, cb, arg)
/** remove signal handler */
int getdns_signal_del(struct getdns_event *);