Using multiple (different) uca-net cameras #24
Description
When an uca-net camera is instantiated all the properties of the remote camera are attached to the net-camera-class.
A second instantiation triggers this again, resulting in a mixing of properties.
E.g. this:
we run "ucad file -p 1234" and "ucad mock -p 8989" and use this code (ignore everything beside the main()-function):
#include <iostream>
#include <uca/uca-plugin-manager.h>
#include <uca/uca-camera.h>
#include <glib-object.h>
#include <stdlib.h>
static const gchar * get_flags_description (GParamSpec *pspec)
{
static const gchar *descriptions[] = { "", "RO", "WO", "RW", "" };
if (pspec->flags >= 3)
return descriptions[3];
return descriptions[pspec->flags];
}
static void print_properties (UcaCamera *camera)
{
GObjectClass *oclass;
GParamSpec **pspecs;
GHashTable *map;
GList *names;
gchar *fmt_string;
guint n_props;
guint max_length = 0;
oclass = G_OBJECT_GET_CLASS (camera);
pspecs = g_object_class_list_properties (oclass, &n_props);
for (guint i = 0; i < n_props; i++)
max_length = MAX (max_length, strlen (g_param_spec_get_name (pspecs[i])));
map = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, g_free);
for (guint i = 0; i < n_props; i++) {
GParamSpec *pspec;
GValue value= { 0, { { 0 } } };
const gchar *name;
pspec = pspecs[i];
name = g_param_spec_get_name (pspec);
g_value_init (&value, pspec->value_type);
g_object_get_property (G_OBJECT (camera), name, &value);
g_hash_table_insert (map, (gpointer) name, g_strdup_value_contents (&value));
g_value_unset (&value);
}
fmt_string = g_strdup_printf (" %%s | %%-%us | %%s\n", max_length);
names = g_list_sort (g_hash_table_get_keys (map), (GCompareFunc) g_strcmp0);
for (GList *it = g_list_first (names); it != NULL; it = g_list_next (it)) {
GParamSpec *pspec;
const gchar *name;
gpointer value;
name = (const gchar *) it->data;
pspec = g_object_class_find_property (oclass, name);
value = g_hash_table_lookup (map, name);
g_print (fmt_string, get_flags_description (pspec), name, value);
}
g_list_free (names);
g_hash_table_destroy (map);
g_free (fmt_string);
g_free (pspecs);
}
int main()
{
GError *error = nullptr; /* this _must_ be set to NULL */
const auto manager = uca_plugin_manager_new();
// Mock camera
setenv("UCA_NET_HOST", "localhost:8989", 1);
const auto camera = uca_plugin_manager_get_camerah (manager, "net", nullptr, &error);
// File camera
setenv("UCA_NET_HOST", "localhost:1234", 1);
const auto camera2 = uca_plugin_manager_get_camerah (manager, "net", nullptr, &error);
if (error) {
std::cerr << "Error: " << error->message << std::endl;
g_error_free(error);
return 1;
}
std::cout << "Mock via uca-net:" <<std::endl;
print_properties(camera);
std::cout << "File via uca-net:" <<std::endl;
print_properties(camera2);
g_object_unref (camera);
g_object_unref (camera2);
return 0;
}This will result in this output:
Mock via uca-net:
RW | buffered | FALSE
RW | degree-value | 1.000000
RW | exposure-time | 0.050000
RW | fill-data | TRUE
RW | frames-per-second | 20.000000
RO | has-camram-recording | FALSE
RO | has-streaming | TRUE
RW | host | "localhost:8989"
RO | is-readout | FALSE
RO | is-recording | FALSE
RO | name | "mock camera"
RW | num-buffers | 4
RW | path | NULL
RO | port | 8989
RO | recorded-frames | 0
RW | roi-height | 512
RO | roi-height-multiplier | 1
RW | roi-width | 512
RO | roi-width-multiplier | 1
RW | roi-x0 | 0
RW | roi-y0 | 0
RO | sensor-bitdepth | 8
RO | sensor-height | 4096
RW | sensor-horizontal-binning | 1
RO | sensor-pixel-height | 0.000010
RO | sensor-pixel-width | 0.000010
RW | sensor-vertical-binning | 1
RO | sensor-width | 4096
RW | test-enum | ((test-enum) UCA_MOCK_CAMERA_TEST_ENUM_FOO)
RW | transfer-asynchronously | FALSE
RW | trigger-source | ((UcaCameraTriggerSource) UCA_CAMERA_TRIGGER_SOURCE_AUTO)
RW | trigger-type | ((UcaCameraTriggerType) UCA_CAMERA_TRIGGER_TYPE_EDGE)
File via uca-net:
RW | buffered | FALSE
RW | degree-value | 0.000000
RW | exposure-time | 0.100000
RW | fill-data | FALSE
RW | frames-per-second | 10.000000
RO | has-camram-recording | FALSE
RO | has-streaming | TRUE
RW | host | "localhost:1234"
RO | is-readout | FALSE
RO | is-recording | FALSE
RO | name | "file camera"
RW | num-buffers | 4
RW | path | "."
RO | port | 8989
RO | recorded-frames | 0
RW | roi-height | 512
RO | roi-height-multiplier | 1
RW | roi-width | 512
RO | roi-width-multiplier | 1
RW | roi-x0 | 0
RW | roi-y0 | 0
RO | sensor-bitdepth | 8
RO | sensor-height | 512
RW | sensor-horizontal-binning | 1
RO | sensor-pixel-height | 0.000010
RO | sensor-pixel-width | 0.000010
RW | sensor-vertical-binning | 1
RO | sensor-width | 512
RW | test-enum | ((test-enum) UCA_MOCK_CAMERA_TEST_ENUM_FOO)
RW | transfer-asynchronously | FALSE
RW | trigger-source | ((UcaCameraTriggerSource) UCA_CAMERA_TRIGGER_SOURCE_AUTO)
RW | trigger-type | ((UcaCameraTriggerType) UCA_CAMERA_TRIGGER_TYPE_EDGE)
(process:50509): Uca-Net-WARNING **: 11:30:12.207: Could not get property: Reply does not match request
(process:50509): Uca-Net-WARNING **: 11:30:12.210: Could not get property: Reply does not match request
(process:50509): Uca-Net-WARNING **: 11:30:12.211: Could not get property: Reply does not match request
(process:50509): Uca-Net-WARNING **: 11:30:12.211: Could not get property: Reply does not match request
Process finished with exit code 0
where the mock has a (NULL) path and the file has some mock-parameters.