From 84254cfddf7da036377d3a10f22badefc9a5a339 Mon Sep 17 00:00:00 2001 From: Michael Jumper Date: Tue, 22 Nov 2011 23:51:43 -0800 Subject: [PATCH] Removed daemon-specific functions --- libguac/include/client.h | 19 ------ libguac/src/client.c | 133 --------------------------------------- 2 files changed, 152 deletions(-) diff --git a/libguac/include/client.h b/libguac/include/client.h index 38565f4c..6a187761 100644 --- a/libguac/include/client.h +++ b/libguac/include/client.h @@ -307,16 +307,6 @@ typedef int guac_client_init_handler(guac_client* client, int argc, char** argv) */ guac_client* guac_get_client(int client_fd); -/** - * Enter the main network message handling loop for the given client. - * - * @param client The proxy client to start handling messages of/for. - * @return Zero if the client successfully started, non-zero if an error - * occurs during startup. Note that this function will still return - * zero if an error occurs while the client is running. - */ -int guac_start_client(guac_client* client); - /** * Free all resources associated with the given client. * @@ -336,15 +326,6 @@ void guac_free_client(guac_client* client); */ int guac_client_handle_instruction(guac_client* client, guac_instruction* instruction); -/** - * Signal the given client to stop. This will set the state of the given client - * to STOPPING, which signals the I/O threads to shutdown, and ultimately - * results in shutdown of the client. - * - * @param client The proxy client to stop. - */ -void guac_client_stop(guac_client* client); - /** * Allocates a new buffer (invisible layer). An arbitrary index is * automatically assigned if no existing buffer is available for use. diff --git a/libguac/src/client.c b/libguac/src/client.c index a1cafa18..5d27c0eb 100644 --- a/libguac/src/client.c +++ b/libguac/src/client.c @@ -303,10 +303,6 @@ guac_client* guac_get_client(int client_fd) { } -void guac_client_stop(guac_client* client) { - client->state = STOPPING; -} - void guac_free_client(guac_client* client) { if (client->free_handler) { @@ -336,135 +332,6 @@ void guac_free_client(guac_client* client) { free(client); } - -void* __guac_client_output_thread(void* data) { - - guac_client* client = (guac_client*) data; - GUACIO* io = client->io; - - guac_timestamp last_ping_timestamp = guac_current_timestamp(); - - /* Guacamole client output loop */ - while (client->state == RUNNING) { - - /* Occasionally ping client with repeat of last sync */ - guac_timestamp timestamp = guac_current_timestamp(); - if (timestamp - last_ping_timestamp > GUAC_SYNC_FREQUENCY) { - last_ping_timestamp = timestamp; - if ( - guac_send_sync(io, client->last_sent_timestamp) - || guac_flush(io) - ) { - guac_client_stop(client); - return NULL; - } - } - - /* Handle server messages */ - if (client->handle_messages) { - - /* Get previous GUACIO state */ - int last_total_written = io->total_written; - - /* Only handle messages if synced within threshold */ - if (client->last_sent_timestamp - client->last_received_timestamp - < GUAC_SYNC_THRESHOLD) { - - int retval = client->handle_messages(client); - if (retval) { - guac_log_error("Error handling server messages"); - guac_client_stop(client); - return NULL; - } - - /* If data was written during message handling */ - if (io->total_written != last_total_written) { - - /* Sleep as necessary */ - guac_sleep(GUAC_SERVER_MESSAGE_HANDLE_FREQUENCY); - - /* Send sync instruction */ - client->last_sent_timestamp = guac_current_timestamp(); - if (guac_send_sync(io, client->last_sent_timestamp)) { - guac_client_stop(client); - return NULL; - } - - } - - if (guac_flush(io)) { - guac_client_stop(client); - return NULL; - } - - } - - /* If sync threshold exceeded, don't spin waiting for resync */ - else - guac_sleep(GUAC_SERVER_MESSAGE_HANDLE_FREQUENCY); - - } - - /* If no message handler, just sleep until next sync ping */ - else - guac_sleep(GUAC_SYNC_FREQUENCY); - - } /* End of output loop */ - - guac_client_stop(client); - return NULL; - -} - -void* __guac_client_input_thread(void* data) { - - guac_client* client = (guac_client*) data; - GUACIO* io = client->io; - - guac_instruction instruction; - - /* Guacamole client input loop */ - while (client->state == RUNNING && guac_read_instruction(io, &instruction) > 0) { - - /* Call handler, stop on error */ - if (guac_client_handle_instruction(client, &instruction) < 0) { - guac_free_instruction_data(&instruction); - break; - } - - /* Free allocate instruction data */ - guac_free_instruction_data(&instruction); - - } - - guac_client_stop(client); - return NULL; - -} - -int guac_start_client(guac_client* client) { - - guac_thread input_thread, output_thread; - - if (guac_thread_create(&output_thread, __guac_client_output_thread, (void*) client)) { - return -1; - } - - if (guac_thread_create(&input_thread, __guac_client_input_thread, (void*) client)) { - guac_client_stop(client); - guac_thread_join(output_thread); - return -1; - } - - /* Wait for I/O threads */ - guac_thread_join(input_thread); - guac_thread_join(output_thread); - - /* Done */ - return 0; - -} - int guac_client_handle_instruction(guac_client* client, guac_instruction* instruction) { /* For each defined instruction */