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Reuse sync eventloop per context 

So recursive resolution can depend on and continue with outstanding queries it depends on
This commit is contained in:
Willem Toorop 2016-03-09 11:16:19 +01:00
parent 70cc65f786
commit a83c54387d
3 changed files with 58 additions and 64 deletions
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5
src/context.c
View File

@ -1156,6 +1156,7 @@ getdns_context_create_with_extended_memory_functions(
result->extension = &result->default_eventloop.loop;
_getdns_default_eventloop_init(&result->default_eventloop);
_getdns_default_eventloop_init(&result->sync_eventloop);
result->fchg_resolvconf = NULL;
result->fchg_hosts = NULL;
@ -1260,13 +1261,13 @@ getdns_context_destroy(struct getdns_context *context)
*/
_getdns_upstreams_dereference(context->upstreams);
context->sync_eventloop.loop.vmt->cleanup(&context->sync_eventloop.loop);
context->extension->vmt->cleanup(context->extension);
#ifdef HAVE_LIBUNBOUND
if (context->unbound_ctx)
ub_ctx_delete(context->unbound_ctx);
#endif
context->extension->vmt->cleanup(context->extension);
if (context->namespaces)
GETDNS_FREE(context->my_mf, context->namespaces);

1
src/context.h
View File

@ -249,6 +249,7 @@ struct getdns_context {
/* The default extension */
_getdns_default_eventloop default_eventloop;
_getdns_default_eventloop sync_eventloop;
/*
* state data used to detect changes to the system config files

116
src/sync.c
View File

@ -45,36 +45,33 @@
#include "stub.h"
#include "gldns/wire2str.h"
typedef struct getdns_sync_loop {
_getdns_default_eventloop loop;
typedef struct getdns_sync_data {
#ifdef HAVE_LIBUNBOUND
getdns_eventloop_event ub_event;
#endif
getdns_context *context;
int to_run;
getdns_dict *response;
} getdns_sync_loop;
} getdns_sync_data;
static getdns_return_t
getdns_sync_loop_init(getdns_context *context, getdns_sync_loop *loop)
getdns_sync_data_init(getdns_context *context, getdns_sync_data *data)
{
#ifdef HAVE_LIBUNBOUND
getdns_eventloop *ext = &loop->loop.loop;
getdns_eventloop *ext = &context->sync_eventloop.loop;
#endif
loop->response = NULL;
loop->to_run = 1;
loop->context = context;
_getdns_default_eventloop_init(&loop->loop);
data->context = context;
data->to_run = 1;
data->response = NULL;
#ifdef HAVE_LIBUNBOUND
# ifndef USE_WINSOCK
loop->ub_event.userarg = loop->context;
loop->ub_event.read_cb = _getdns_context_ub_read_cb;
loop->ub_event.write_cb = NULL;
loop->ub_event.timeout_cb = NULL;
loop->ub_event.ev = NULL;
data->ub_event.userarg = data->context;
data->ub_event.read_cb = _getdns_context_ub_read_cb;
data->ub_event.write_cb = NULL;
data->ub_event.timeout_cb = NULL;
data->ub_event.ev = NULL;
# endif
# ifdef HAVE_UNBOUND_EVENT_API
if (_getdns_ub_loop_enabled(&context->ub_loop)) {
@ -83,7 +80,7 @@ getdns_sync_loop_init(getdns_context *context, getdns_sync_loop *loop)
# endif
# ifndef USE_WINSOCK
return ext->vmt->schedule(ext, ub_fd(context->unbound_ctx),
TIMEOUT_FOREVER, &loop->ub_event);
TIMEOUT_FOREVER, &data->ub_event);
# else
/* No sync full recursion requests on windows without
* UNBOUND_EVENT_API because ub_fd() doesn't work on windows.
@ -95,66 +92,61 @@ getdns_sync_loop_init(getdns_context *context, getdns_sync_loop *loop)
}
static void
getdns_sync_loop_cleanup(getdns_sync_loop *loop)
getdns_sync_data_cleanup(getdns_sync_data *data)
{
getdns_eventloop *ext = &loop->loop.loop;
#if defined(HAVE_LIBUNBOUND) && !defined(USE_WINSOCK)
# ifdef HAVE_UNBOUND_EVENT_API
if (_getdns_ub_loop_enabled(&loop->context->ub_loop)) {
loop->context->ub_loop.extension = loop->context->extension;
if (_getdns_ub_loop_enabled(&data->context->ub_loop)) {
data->context->ub_loop.extension = data->context->extension;
} else
# endif
ext->vmt->clear(ext, &loop->ub_event);
data->context->sync_eventloop.loop.vmt->clear(
&data->context->sync_eventloop.loop, &data->ub_event);
#endif
ext->vmt->cleanup(ext);
}
static void
getdns_sync_loop_run(getdns_sync_loop *loop)
getdns_sync_loop_run(getdns_sync_data *data)
{
getdns_eventloop *ext = &loop->loop.loop;
while (loop->to_run)
ext->vmt->run_once(ext, 1);
getdns_sync_loop_cleanup(loop);
while (data->to_run)
data->context->sync_eventloop.loop.vmt->run_once(
&data->context->sync_eventloop.loop, 1);
}
static void
getdns_sync_cb(getdns_context *context, getdns_callback_type_t callback_type,
getdns_dict *response, void *userarg, getdns_transaction_t transaction_id)
{
getdns_sync_loop *loop = (getdns_sync_loop *)userarg;
getdns_sync_data *data = (getdns_sync_data *)userarg;
assert(loop);
assert(data);
loop->response = response;
loop->to_run = 0;
data->response = response;
data->to_run = 0;
}
getdns_return_t
getdns_general_sync(getdns_context *context, const char *name,
uint16_t request_type, getdns_dict *extensions, getdns_dict **response)
{
getdns_sync_loop loop;
getdns_sync_data data;
getdns_return_t r;
if (!context || !name || !response)
return GETDNS_RETURN_INVALID_PARAMETER;
if ((r = getdns_sync_loop_init(context, &loop)))
if ((r = getdns_sync_data_init(context, &data)))
return r;
if ((r = _getdns_general_loop(context, &loop.loop.loop, name,
request_type, extensions, &loop, NULL, getdns_sync_cb, NULL))) {
if ((r = _getdns_general_loop(context, &context->sync_eventloop.loop,
name, request_type, extensions, &data, NULL, getdns_sync_cb, NULL))) {
getdns_sync_loop_cleanup(&loop);
getdns_sync_data_cleanup(&data);
return r;
}
getdns_sync_loop_run(&loop);
getdns_sync_loop_run(&data);
return (*response = loop.response) ?
return (*response = data.response) ?
GETDNS_RETURN_GOOD : GETDNS_RETURN_GENERIC_ERROR;
}
@ -162,24 +154,24 @@ getdns_return_t
getdns_address_sync(getdns_context *context, const char *name,
getdns_dict *extensions, getdns_dict **response)
{
getdns_sync_loop loop;
getdns_sync_data data;
getdns_return_t r;
if (!context || !name || !response)
return GETDNS_RETURN_INVALID_PARAMETER;
if ((r = getdns_sync_loop_init(context, &loop)))
if ((r = getdns_sync_data_init(context, &data)))
return r;
if ((r = _getdns_address_loop(context, &loop.loop.loop, name,
extensions, &loop, NULL, getdns_sync_cb))) {
if ((r = _getdns_address_loop(context, &context->sync_eventloop.loop,
name, extensions, &data, NULL, getdns_sync_cb))) {
getdns_sync_loop_cleanup(&loop);
getdns_sync_data_cleanup(&data);
return r;
}
getdns_sync_loop_run(&loop);
getdns_sync_loop_run(&data);
return (*response = loop.response) ?
return (*response = data.response) ?
GETDNS_RETURN_GOOD : GETDNS_RETURN_GENERIC_ERROR;
}
@ -187,24 +179,24 @@ getdns_return_t
getdns_hostname_sync(getdns_context *context, getdns_dict *address,
getdns_dict *extensions, getdns_dict **response)
{
getdns_sync_loop loop;
getdns_sync_data data;
getdns_return_t r;
if (!context || !address || !response)
return GETDNS_RETURN_INVALID_PARAMETER;
if ((r = getdns_sync_loop_init(context, &loop)))
if ((r = getdns_sync_data_init(context, &data)))
return r;
if ((r = _getdns_hostname_loop(context, &loop.loop.loop, address,
extensions, &loop, NULL, getdns_sync_cb))) {
if ((r = _getdns_hostname_loop(context, &context->sync_eventloop.loop,
address, extensions, &data, NULL, getdns_sync_cb))) {
getdns_sync_loop_cleanup(&loop);
getdns_sync_data_cleanup(&data);
return r;
}
getdns_sync_loop_run(&loop);
getdns_sync_loop_run(&data);
return (*response = loop.response) ?
return (*response = data.response) ?
GETDNS_RETURN_GOOD : GETDNS_RETURN_GENERIC_ERROR;
}
@ -212,24 +204,24 @@ getdns_return_t
getdns_service_sync(getdns_context *context, const char *name,
getdns_dict *extensions, getdns_dict **response)
{
getdns_sync_loop loop;
getdns_sync_data data;
getdns_return_t r;
if (!context || !name || !response)
return GETDNS_RETURN_INVALID_PARAMETER;
if ((r = getdns_sync_loop_init(context, &loop)))
if ((r = getdns_sync_data_init(context, &data)))
return r;
if ((r = _getdns_service_loop(context, &loop.loop.loop, name,
extensions, &loop, NULL, getdns_sync_cb))) {
if ((r = _getdns_service_loop(context, &context->sync_eventloop.loop,
name, extensions, &data, NULL, getdns_sync_cb))) {
getdns_sync_loop_cleanup(&loop);
getdns_sync_data_cleanup(&data);
return r;
}
getdns_sync_loop_run(&loop);
getdns_sync_loop_run(&data);
return (*response = loop.response) ?
return (*response = data.response) ?
GETDNS_RETURN_GOOD : GETDNS_RETURN_GENERIC_ERROR;
}