/****************************************************************************** * * Copyright (c) 2017-2019 by Löwenware Ltd * Please, refer LICENSE file for legal information * ******************************************************************************/ /** * @file hello-world.c * @author Ilja Kartašov * @brief AISL usage example: Hello World * * @see https://lowenware.com/aisl/ */ #include #include /* Include library meta header */ #include #define DEFAULT_HTTP_PORT 8080 /**< Default HTTP server port */ static bool hello_world(aisl_stream_t s) { aisl_status_t status; const char html[] = "" "" "Hello World" "" "" "

Hello World

" "

" "" ""; status = aisl_response(s, AISL_HTTP_OK, sizeof(html)-1); if (status == AISL_SUCCESS) { if (aisl_write(s, html, sizeof(html)-1) != -1) { aisl_flush(s); } else aisl_reject(s); } return true; /**< do not propagate event anymore */ } int main(int argc, char ** argv) { aisl_t aisl; /**< AISL instance pointer */ aisl_status_t status; /**< AISL status code */ uint16_t port = 0; /* Try to use first argument as a port number */ if (argc > 1) port = strtoll(argv[1], NULL, 10); /* Fallback to default if not set or failed */ if (port == 0) port = DEFAULT_HTTP_PORT; /* Initialize instance */ if ( (aisl = aisl_new(NULL)) != NULL ) { if (aisl_listen( aisl, "0.0.0.0", port ) != NULL) { aisl_callback_t callback = AISL_CALLBACK(hello_world); /* Set up request callback */ status = aisl_set_callback( aisl , NULL , AISL_EVENT_STREAM_REQUEST , callback ); /* if callback was set, launch application loop */ if ( status == AISL_SUCCESS ) { fprintf(stdout, "Entering main loop" ); for(;;) { status = aisl_run_cycle(aisl); if ( status != AISL_SUCCESS ) aisl_sleep(aisl, 500); } } else fprintf(stderr, "Failed to register callback" ); aisl_free(aisl); } else fprintf(stderr, "Failed to initialize HTTP server" ); } else fprintf(stderr, "Failed to initialize AISL"); (void)argc; (void)argv; return 0; }