C2: Add icsneoc2_device_reconnect

examples/c2/reconnect/CMakeLists.txt

@@ -0,0 +1,6 @@
+add_executable(libicsneoc2-reconnect-example src/main.c)
+target_link_libraries(libicsneoc2-reconnect-example icsneoc2-static)
+
+if(WIN32)
+	target_compile_definitions(libicsneoc2-reconnect-example PRIVATE _CRT_SECURE_NO_WARNINGS)
+endif()

examples/c2/reconnect/src/main.c

@@ -0,0 +1,132 @@
+#include <icsneo/icsneoc2.h>
+
+#include <stdio.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <unistd.h>
+#endif
+
+void sleep_ms(uint32_t ms) {
+#ifdef _WIN32
+	Sleep(ms);
+#else
+	usleep(ms * 1000);
+#endif
+}
+
+int print_error_code(const char* message, icsneoc2_error_t error) {
+	char error_str[64];
+	size_t error_str_len = sizeof(error_str);
+	icsneoc2_error_t res = icsneoc2_error_code_get(error, error_str, &error_str_len);
+	if(res != icsneoc2_error_success) {
+		printf("%s: Failed to get string for error code %d with error code %d\n", message, error, res);
+		return res;
+	}
+	printf("%s: \"%s\" (%u)\n", message, error_str, error);
+	return (int)error;
+}
+
+void print_events(void) {
+	icsneoc2_event_t* events[256] = {0};
+	size_t events_count = 256;
+	for(size_t i = 0; i < events_count; ++i) {
+		icsneoc2_error_t res = icsneoc2_event_get(&events[i], NULL);
+		if(res != icsneoc2_error_success) {
+			(void)print_error_code("\tFailed to get events", res);
+			return;
+		}
+		if(events[i] == NULL) {
+			events_count = i;
+			break;
+		}
+	}
+	for(size_t i = 0; i < events_count; i++) {
+		char description[255] = {0};
+		size_t description_length = 255;
+		icsneoc2_error_t res = icsneoc2_event_description_get(events[i], description, &description_length);
+		if(res != icsneoc2_error_success) {
+			print_error_code("\tFailed to get event description", res);
+			continue;
+		}
+		printf("\tEvent %zu: %s\n", i, description);
+	}
+	for(size_t i = 0; i < events_count; i++) {
+		icsneoc2_event_free(events[i]);
+	}
+	if(events_count > 0) {
+		printf("\tReceived %zu events\n", events_count);
+	}
+}
+
+int main(void) {
+	/* Open the first available device */
+	printf("Opening first available device...\n");
+	icsneoc2_device_t* device = NULL;
+	icsneoc2_error_t res = icsneoc2_device_open_first(0, icsneoc2_open_options_default, &device);
+	if(res != icsneoc2_error_success) {
+		return print_error_code("Failed to open first device", res);
+	}
+
+	/* Get a description of the opened device */
+	char description[255] = {0};
+	size_t description_length = 255;
+	res = icsneoc2_device_description_get(device, description, &description_length);
+	if(res != icsneoc2_error_success) {
+		icsneoc2_device_free(device);
+		return print_error_code("Failed to get device description", res);
+	}
+	printf("Opened device: %s\n", description);
+
+	/* Wait for the device to disconnect */
+	printf("Waiting for device to disconnect (unplug device from PC)...\n");
+	for(;;) {
+		bool is_open = true;
+		res = icsneoc2_device_is_open(device, &is_open);
+		if(res != icsneoc2_error_success) {
+			print_events();
+			icsneoc2_device_free(device);
+			return print_error_code("Failed to check open status", res);
+		}
+		if(!is_open) {
+			printf("Device disconnected!\n");
+			break;
+		}
+		sleep_ms(500);
+	}
+
+	/* Attempt to reconnect */
+	uint32_t timeout_ms = 20000; // 20 second timeout
+	printf("Attempting to reconnect (%u second timeout)...\n", timeout_ms / 1000);
+	res = icsneoc2_device_reconnect(device, icsneoc2_open_options_default, timeout_ms);
+	if(res != icsneoc2_error_success) {
+		print_events();
+		icsneoc2_device_free(device);
+		return print_error_code("Failed to reconnect", res);
+	}
+
+	printf("Reconnected successfully!\n");
+
+	/* Verify by getting the description again */
+	description_length = 255;
+	res = icsneoc2_device_description_get(device, description, &description_length);
+	if(res == icsneoc2_error_success) {
+		printf("Device: %s\n", description);
+	}
+
+	/* Print any events */
+	print_events();
+
+	/* Close the device */
+	printf("Closing device...\n");
+	res = icsneoc2_device_close(device);
+	if(res != icsneoc2_error_success) {
+		icsneoc2_device_free(device);
+		return print_error_code("Failed to close device", res);
+	}
+	icsneoc2_device_free(device);
+
+	printf("Done.\n");
+	return 0;
+}