# in your cmake file
set(LIBHP_WITH_HTTP 1 CACHE INTERNAL "LIBHP_WITH_HTTP")
add_subdirectory(deps/libhp)

/* in your code */
#include "hp/hp_log.h"
#include "hp/hp_http.h"
...
hp_log(stdout, "hello libhp\n");
hp_http http;
...

#ifndef NDEBUG
int test_hp_io_t_main(int argc, char ** argv);
#endif /* NDEBUG */

	/**
	 * In this simple example, we create a HTTP sever and a HTTP client,
	 * then the client send a HTTP request to the sever to get index.html
	 *
	 * see hp_io_t.c/test_hp_io_t_main for a complete example
	 * /
	struct httpclient {
		hp_io_t io;
		//...
	} ;
	struct httpserver {
		hp_io_t listenio;
		//...
	} ;

	/* a HTTP client I/O handle */
	hp_iohdl http_cli_hdl = {
			.on_new = 0/*http_cli_on_new*/,       // set to NULL is fine
			.on_parse = http_cli_on_parse,        // parse the HTTP response data
			.on_dispatch = http_cli_on_dispatch,  // process the HTTP message
			.on_loop = 0,                         // keep alive?
			.on_delete = 0/*http_cli_on_delete*/, // 
	#ifdef _MSC_VER
			.wm_user = 0 	/* WM_USER + N */        // Windows only
			.hwnd = 0    /* hwnd */
	#endif /* _MSC_VER */
	};
	
	/* the HTTP server I/O handle */
	hp_iohdl http_server_hdl = {
			.on_new = http_server_on_new,           // when a new HTTP client coming
			.on_parse = http_server_on_parse,       // parse HTTP data
			.on_dispatch = http_server_on_dispatch, // handle the HTTP message: reply/close/upgrade?
			.on_loop = 0,                           // key alive?
			.on_delete = http_server_on_delete,     // close the client
	#ifdef _MSC_VER
			.wm_user = 0 	/* WM_USER + N */
			.hwnd = 0    /* hwnd */
	#endif /* _MSC_VER */
	};

	// init needed
	httpclient cobj, *c = &cobj;
	httpserver sobj, *s = &sobj;
	hp_sock_t listen_fd, confd;

	/* the IO context */
	hp_io_ctx ioctxobj, *ioctx = &ioctxobj;
	rc = hp_io_init(ioctx); assert(rc == 0);

	/* HTTP server add listen socket  with handles */
	rc = hp_io_add(ioctx, &s->listenio, listen_fd, http_server_hdl); assert(rc == 0);
	/* add HTTP connect socket */
	rc = hp_io_add(ioctx, &c->io, confd, http_cli_hdl); assert(rc == 0);

	/* the client send HTTP request async, data is freed by hp_io_t system
	 */
	char * data = calloc("GET /index.html HTTP/1.1\r\nHost: %s:%d\r\n\r\n");
	rc = hp_io_write(ioctx, io, data, strlen(data), free, 0); assert(rc == 0);

	/* run event loop */
	for (;;) {
		hp_io_run(ioctx, 200, 0); 
	}

	/* clear */
	hp_io_uninit(ioctx);