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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 license and are unable|
| to obtain it through the world-wide-web, please send a note to |
| license@swoole.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Tianfeng Han <mikan.tenny@gmail.com> |
+----------------------------------------------------------------------+
*/
#include "php_swoole_cxx.h"
#include "php_streams.h"
#include "php_network.h"
#include "ext/standard/file.h"
#include "ext/standard/basic_functions.h"
#include <string>
#include <vector>
#include <unordered_map>
using swoole::PHPCoroutine;
using swoole::Coroutine;
using swoole::coroutine::Socket;
using std::string;
using std::vector;
typedef struct
{
char address[16];
time_t update_time;
} dns_cache;
typedef struct
{
zval *callback;
pid_t pid;
int fd;
swString *buffer;
} process_stream;
static std::unordered_map<std::string, dns_cache*> request_cache_map;
void php_swoole_async_coro_minit(int module_number)
{
}
void php_swoole_async_coro_rshutdown()
{
for(auto i = request_cache_map.begin(); i != request_cache_map.end(); i++)
{
efree(i->second);
}
}
PHP_FUNCTION(swoole_async_set)
{
if (SwooleTG.reactor)
{
php_swoole_fatal_error(E_ERROR, "eventLoop has already been created. unable to change settings");
RETURN_FALSE;
}
zval *zset = NULL;
HashTable *vht;
zval *ztmp;
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_ARRAY(zset)
ZEND_PARSE_PARAMETERS_END_EX(RETURN_FALSE);
vht = Z_ARRVAL_P(zset);
php_swoole_set_global_option(vht);
if (php_swoole_array_get_value(vht, "enable_signalfd", ztmp))
{
SwooleG.enable_signalfd = zval_is_true(ztmp);
}
if (php_swoole_array_get_value(vht, "wait_signal", ztmp))
{
SwooleG.wait_signal = zval_is_true(ztmp);
}
if (php_swoole_array_get_value(vht, "dns_cache_refresh_time", ztmp))
{
SwooleG.dns_cache_refresh_time = zval_get_double(ztmp);
}
if (php_swoole_array_get_value(vht, "socket_buffer_size", ztmp))
{
SwooleG.socket_buffer_size = zval_get_long(ztmp);
if (SwooleG.socket_buffer_size <= 0 || SwooleG.socket_buffer_size > INT_MAX)
{
SwooleG.socket_buffer_size = INT_MAX;
}
}
if (php_swoole_array_get_value(vht, "thread_num", ztmp) || php_swoole_array_get_value(vht, "min_thread_num", ztmp))
{
zend_long v = zval_get_long(ztmp);
v = SW_MAX(1, SW_MIN(v, UINT32_MAX));
SwooleG.aio_core_worker_num = v;
}
if (php_swoole_array_get_value(vht, "max_thread_num", ztmp))
{
zend_long v = zval_get_long(ztmp);
v = SW_MAX(1, SW_MIN(v, UINT32_MAX));
SwooleG.aio_worker_num= v;
}
if (php_swoole_array_get_value(vht, "socket_dontwait", ztmp))
{
SwooleG.socket_dontwait = zval_is_true(ztmp);
}
if (php_swoole_array_get_value(vht, "dns_lookup_random", ztmp))
{
SwooleG.dns_lookup_random = zval_is_true(ztmp);
}
if (php_swoole_array_get_value(vht, "use_async_resolver", ztmp))
{
SwooleG.use_async_resolver = zval_is_true(ztmp);
}
if (php_swoole_array_get_value(vht, "enable_coroutine", ztmp))
{
SwooleG.enable_coroutine = zval_is_true(ztmp);
}
}
PHP_FUNCTION(swoole_async_dns_lookup_coro)
{
Coroutine::get_current_safe();
zval *domain;
double timeout = Socket::default_dns_timeout;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z|d", &domain, &timeout) == FAILURE)
{
RETURN_FALSE;
}
if (Z_TYPE_P(domain) != IS_STRING)
{
php_swoole_fatal_error(E_WARNING, "invalid domain name");
RETURN_FALSE;
}
if (Z_STRLEN_P(domain) == 0)
{
php_swoole_fatal_error(E_WARNING, "domain name empty");
RETURN_FALSE;
}
//find cache
std::string key(Z_STRVAL_P(domain), Z_STRLEN_P(domain));
dns_cache *cache;
if (request_cache_map.find(key) != request_cache_map.end())
{
cache = request_cache_map[key];
if (cache->update_time > swTimer_get_absolute_msec())
{
RETURN_STRING(cache->address);
}
}
php_swoole_check_reactor();
vector<string> result = swoole::coroutine::dns_lookup(Z_STRVAL_P(domain), timeout);
if (result.empty())
{
swoole_set_last_error(SW_ERROR_DNSLOOKUP_RESOLVE_FAILED);
RETURN_FALSE;
}
if (SwooleG.dns_lookup_random)
{
RETVAL_STRING(result[rand() % result.size()].c_str());
}
else
{
RETVAL_STRING(result[0].c_str());
}
auto cache_iterator = request_cache_map.find(key);
if (cache_iterator == request_cache_map.end())
{
cache = (dns_cache *) emalloc(sizeof(dns_cache));
bzero(cache, sizeof(dns_cache));
request_cache_map[key] = cache;
}
else
{
cache = cache_iterator->second;
}
memcpy(cache->address, Z_STRVAL_P(return_value), Z_STRLEN_P(return_value));
cache->address[Z_STRLEN_P(return_value)] = '\0';
cache->update_time = swTimer_get_absolute_msec() + (int64_t) (SwooleG.dns_cache_refresh_time * 1000);
}
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