diff options
Diffstat (limited to 'uca-net-client.c')
-rw-r--r-- | uca-net-client.c | 222 |
1 files changed, 0 insertions, 222 deletions
diff --git a/uca-net-client.c b/uca-net-client.c deleted file mode 100644 index 471d039..0000000 --- a/uca-net-client.c +++ /dev/null @@ -1,222 +0,0 @@ -#include <string.h> -#include <stdlib.h> -#include "uca-net-protocol.h" - -static gboolean -send_default_message (GSocketConnection *connection, UcaNetMessageType type, GError **error) -{ - GOutputStream *output; - UcaNetMessageDefault request; - - output = g_io_stream_get_output_stream (G_IO_STREAM (connection)); - request.type = type; - - if (!g_output_stream_write_all (output, &request, sizeof (request), NULL, NULL, error)) - return FALSE; - - if (!g_output_stream_flush (output, NULL, error)) - return FALSE; - - return TRUE; -} - -static gboolean -handle_default_reply (GSocketConnection *connection, UcaNetMessageType type, GError **error) -{ - GInputStream *input; - UcaNetDefaultReply reply; - - input = g_io_stream_get_input_stream (G_IO_STREAM (connection)); - - if (g_input_stream_read_all (input, &reply, sizeof (reply), NULL, NULL, error)) { - g_assert (reply.type == type); - - if (reply.error.occurred) { - g_set_error_literal (error, g_quark_from_string (reply.error.domain), reply.error.code, reply.error.message); - return FALSE; - } - - return TRUE; - } - - return FALSE; -} - -gboolean -uca_net_client_get_property (GSocketConnection *connection, const gchar *name, GValue *value, GError **error) -{ - UcaNetMessageGetPropertyRequest request; - UcaNetMessageGetPropertyReply reply; - GInputStream *input; - GOutputStream *output; - - input = g_io_stream_get_input_stream (G_IO_STREAM (connection)); - output = g_io_stream_get_output_stream (G_IO_STREAM (connection)); - - if (g_input_stream_has_pending (input)) - g_input_stream_clear_pending (input); - - /* request */ - request.type = UCA_NET_MESSAGE_GET_PROPERTY; - strncpy (request.property_name, name, sizeof (request.property_name)); - - if (!g_output_stream_write_all (output, &request, sizeof (request), NULL, NULL, error)) - return FALSE; - - /* reply */ - if (g_input_stream_read (input, &reply, sizeof (reply), NULL, error) < 0) - return FALSE; - - if (reply.type != request.type) { - if (*error != NULL) - /* FIXME: replace with correct error codes */ - *error = g_error_new_literal (G_FILE_ERROR, G_FILE_ERROR_NOENT, "Reply does not match request"); - return FALSE; - } - - if (g_type_is_a (G_VALUE_TYPE (value), G_TYPE_ENUM)) { - g_value_set_enum (value, atoi (reply.property_value)); - } - else { - /* XXX: I'd like to avoid this and rather use g_value_transform(), however - * that call fails with Python and uca-camera-control but succeeds with - * uca-grab ... */ - switch (G_VALUE_TYPE (value)) { - case G_TYPE_UINT: - g_value_set_uint (value, atol (reply.property_value)); - break; - case G_TYPE_DOUBLE: - g_value_set_double (value, atof (reply.property_value)); - break; - case G_TYPE_BOOLEAN: - g_value_set_boolean (value, g_strcmp0 (reply.property_value, "TRUE")); - break; - case G_TYPE_STRING: - g_value_set_string (value, reply.property_value); - break; - default: - g_warning ("Unsupported property type %s", G_VALUE_TYPE_NAME (value)); - } - } - - return TRUE; -} - -gboolean -uca_net_client_set_property (GSocketConnection *connection, const gchar *name, const GValue *value, GError **error) -{ - GOutputStream *output; - const gchar *str; - GValue str_value = {0}; - UcaNetMessageSetPropertyRequest request = { .type = UCA_NET_MESSAGE_SET_PROPERTY }; - - output = g_io_stream_get_output_stream (G_IO_STREAM (connection)); - g_value_init (&str_value, G_TYPE_STRING); - - if (g_type_is_a (G_VALUE_TYPE (value), G_TYPE_ENUM)) { - GValue int_value = {0}; - - g_value_init (&int_value, G_TYPE_INT); - g_value_transform (value, &int_value); - g_value_transform (&int_value, &str_value); - } - else { - g_value_transform (value, &str_value); - } - - str = g_value_get_string (&str_value); - strncpy (request.property_name, name, sizeof (request.property_name)); - strncpy (request.property_value, str, sizeof (request.property_value)); - - if (!g_output_stream_write_all (output, &request, sizeof (request), NULL, NULL, error)) - return FALSE; - - return handle_default_reply (connection, UCA_NET_MESSAGE_SET_PROPERTY, error); -} - -static void -default_handshake (GSocketConnection *connection, UcaNetMessageType type, GError **error) -{ - if (!send_default_message (connection, type, error)) - return; - - handle_default_reply (connection, type, error); -} - -void -uca_net_client_start_recording (GSocketConnection *connection, GError **error) -{ - default_handshake (connection, UCA_NET_MESSAGE_START_RECORDING, error); -} - -void -uca_net_client_stop_recording (GSocketConnection *connection, GError **error) -{ - default_handshake (connection, UCA_NET_MESSAGE_STOP_RECORDING, error); -} - -void -uca_net_client_start_readout (GSocketConnection *connection, GError **error) -{ - default_handshake (connection, UCA_NET_MESSAGE_START_READOUT, error); -} - -void -uca_net_client_stop_readout (GSocketConnection *connection, GError **error) -{ - default_handshake (connection, UCA_NET_MESSAGE_STOP_READOUT, error); -} - -gboolean -uca_net_client_grab (GSocketConnection *connection, gpointer data, gsize size, GError **error) -{ - GInputStream *input; - GOutputStream *output; - gsize transmitted; - gsize bytes_left; - UcaNetMessageGrabRequest request = { .type = UCA_NET_MESSAGE_GRAB, .size = size }; - - input = g_io_stream_get_input_stream (G_IO_STREAM (connection)); - output = g_io_stream_get_output_stream (G_IO_STREAM (connection)); - - /* request */ - if (!g_output_stream_write_all (output, &request, sizeof (request), &transmitted, NULL, error)) { - return FALSE; - } - - /* error reply */ - if (handle_default_reply (connection, UCA_NET_MESSAGE_GRAB, error)) { - bytes_left = size; - - while (bytes_left > 0) { - gssize read; - gchar *buffer; - - buffer = (gchar *) data; - read = g_input_stream_read (input, &buffer[size - bytes_left], bytes_left, NULL, error); - - if (read < 0) - return FALSE; - - bytes_left -= read; - } - - return TRUE; - } - - return FALSE; -} - -gboolean -uca_net_client_close (GSocketConnection *connection, GError **error) -{ - GOutputStream *output; - UcaNetMessageDefault request = { .type = UCA_NET_MESSAGE_CLOSE_CONNECTION }; - - output = g_io_stream_get_output_stream (G_IO_STREAM (connection)); - - if (!g_output_stream_write_all (output, &request, sizeof (request), NULL, NULL, error)) - return FALSE; - - return TRUE; -} |