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/*
    +--------------------------------------------------------------------+
    | PECL :: http                                                       |
    +--------------------------------------------------------------------+
    | Redistribution and use in source and binary forms, with or without |
    | modification, are permitted provided that the conditions mentioned |
    | in the accompanying LICENSE file are met.                          |
    +--------------------------------------------------------------------+
    | Copyright (c) 2004-2014, Michael Wallner <mike@php.net>            |
    +--------------------------------------------------------------------+
*/

#ifndef PHP_HTTP_CLIENT_CURL_H
#define PHP_HTTP_CLIENT_CURL_H

#if PHP_HTTP_HAVE_LIBCURL

struct php_http_client_curl_globals {
	php_http_client_driver_t driver;
};

typedef struct php_http_client_curl_handle {
	CURLM *multi;
	CURLSH *share;
} php_http_client_curl_handle_t;

typedef struct php_http_client_curl_ops {
	void *(*init)();
	void (*dtor)(void **ctx_ptr);
	ZEND_RESULT_CODE (*once)(void *ctx);
	ZEND_RESULT_CODE (*wait)(void *ctx, struct timeval *custom_timeout);
	ZEND_RESULT_CODE (*exec)(void *ctx);
} php_http_client_curl_ops_t;

typedef struct php_http_client_curl {
	php_http_client_curl_handle_t *handle;

	int unfinished;  /* int because of curl_multi_perform() */

	void *ev_ctx;
	php_http_client_curl_ops_t *ev_ops;
} php_http_client_curl_t;

static inline void php_http_client_curl_get_timeout(php_http_client_curl_t *curl, long max_tout, struct timeval *timeout)
{
	timeout->tv_sec = 0;
	timeout->tv_usec = 0;

	/* always returns CURLM_OK, check max_tout instead */
	curl_multi_timeout(curl->handle->multi, &max_tout);

	if (!max_tout) {
		/* immediately */
		return;
	}

	if (max_tout < 0) {
		/* 5ms */
		max_tout = 5;
	} else if (max_tout > 1000) {
		/* 1s */
		max_tout = 1000;
	}

	timeout->tv_sec = max_tout / 1000;
	timeout->tv_usec = (max_tout % 1000) * 1000;
}

PHP_HTTP_API void php_http_client_curl_responsehandler(php_http_client_t *client);
PHP_HTTP_API void php_http_client_curl_loop(php_http_client_t *client, curl_socket_t s, int curl_action);
PHP_HTTP_API php_http_client_ops_t *php_http_client_curl_get_ops(void);

PHP_MINIT_FUNCTION(http_client_curl);
PHP_MSHUTDOWN_FUNCTION(http_client_curl);

#endif /* PHP_HTTP_HAVE_LIBCURL */

#endif /* PHP_HTTP_CLIENT_CURL_H */

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