Add free functions for allocated resources

CMakeLists.txt

@@ -59,4 +59,6 @@ include_directories(include)
 
 add_subdirectory(backend)
 add_subdirectory(common)
+add_subdirectory(wayland)
+
 add_subdirectory(example)

backend/CMakeLists.txt

@@ -12,5 +12,6 @@ add_library(wlr-backend
 
 target_link_libraries(wlr-backend
     wlr-common
+    wlr-wayland
     ${WAYLAND_LIBRARIES}
 )

backend/wayland/backend.c

@@ -9,7 +9,18 @@ void wlr_wl_backend_free(struct wlr_wl_backend *backend) {
 	if (!backend) {
 		return;
 	}
-	// TODO: free more shit
+	// TODO: Free surfaces
+	for (size_t i = 0; backend->outputs && i < backend->outputs->length; ++i) {
+		struct wlr_wl_output *output = backend->outputs->items[i];
+		wlr_wl_output_free(output);
+	}
+	list_free(backend->outputs);
+	if (backend->seat) wlr_wl_seat_free(backend->seat);
+	if (backend->shm) wl_shm_destroy(backend->shm);
+	if (backend->shell) wl_shell_destroy(backend->shell);
+	if (backend->compositor) wl_compositor_destroy(backend->compositor);
+	if (backend->registry) wl_registry_destroy(backend->registry);
+	if (backend->remote_display) wl_display_disconnect(backend->remote_display);
 	free(backend);
 }
 

backend/wayland/registry.c

@@ -25,7 +25,7 @@ static void registry_wl_seat(struct wlr_wl_backend *backend,
 	wl_seat_add_listener(wl_seat, &seat_listener, seat);
 	return;
 error:
-	//wlr_wl_seat_free(seat); TODO
+	wlr_wl_seat_free(seat);
 	return;
 }
 
@@ -47,7 +47,7 @@ static void registry_wl_output(struct wlr_wl_backend *backend,
 	wl_output_add_listener(wl_output, &output_listener, output);
 	return;
 error:
-	//wlr_wl_output_free(output); TODO
+	wlr_wl_output_free(output);
 	return;
 }
 

backend/wayland/wl_output.c

@@ -1,19 +1,30 @@
+#define _XOPEN_SOURCE 500
+#include <string.h>
 #include <assert.h>
 #include <stdlib.h>
 #include <stdint.h>
 #include <wayland-client.h>
 #include "backend/wayland.h"
+#include "common/log.h"
 
 static void wl_output_handle_mode(void *data, struct wl_output *wl_output,
 		     uint32_t flags, int32_t width, int32_t height, int32_t refresh) {
 	struct wlr_wl_output *output = data;
 	assert(output->wl_output == wl_output);
-	struct wlr_wl_output_mode *mode = calloc(sizeof(struct wlr_wl_output_mode), 1);
+	struct wlr_wl_output_mode *mode;
+	if (!(mode = calloc(sizeof(struct wlr_wl_output_mode), 1))) {
+		wlr_log(L_ERROR, "Failed to allocate wlr_wl_output_mode");
+		return;
+	}
 	mode->flags = flags;
 	mode->width = width;
 	mode->height = height;
 	mode->refresh = refresh;
 	list_add(output->modes, mode);
+	wlr_log(L_DEBUG, "Got mode for output %p: %dx%d @ %.2fHz%s%s",
+			wl_output, width, height, refresh / 1000.0,
+			(flags & WL_OUTPUT_MODE_PREFERRED) ? " (preferred)" : "",
+			(flags & WL_OUTPUT_MODE_CURRENT) ? " (current)" : "");
 }
 
 static void wl_output_handle_geometry(void *data, struct wl_output *wl_output,
@@ -26,15 +37,19 @@ static void wl_output_handle_geometry(void *data, struct wl_output *wl_output,
 	output->phys_width = physical_width;
 	output->phys_height = physical_height;
 	output->subpixel = subpixel;
-	output->make = make;
+	output->make = strdup(make);
-	output->model = model;
+	output->model = strdup(model);
 	output->transform = transform;
+	wlr_log(L_DEBUG, "Got info for output %p %dx%d (%dmm x %dmm) %s %s",
+			wl_output, (int)x, (int)y, (int)physical_width, (int)physical_height,
+			make, model);
 }
 
 static void wl_output_handle_scale(void *data, struct wl_output *wl_output, int32_t factor) {
 	struct wlr_wl_output *output = data;
 	assert(output->wl_output == wl_output);
 	output->scale = factor;
+	wlr_log(L_DEBUG, "Got scale factor for output %p: %d", wl_output, factor);
 }
 
 static void wl_output_handle_done(void *data, struct wl_output *wl_output) {

backend/wayland/wl_seat.c

@@ -1,6 +1,8 @@
+#define _XOPEN_SOURCE 500
 #include <assert.h>
 #include <stdlib.h>
 #include <stdint.h>
+#include <string.h>
 #include <wayland-client.h>
 #include "backend/wayland.h"
 #include "common/log.h"
@@ -13,6 +15,7 @@ static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
 	assert(backend);
 
 	if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
+		wlr_log(L_DEBUG, "seat %p offered pointer", wl_seat);
 		struct wl_pointer *wl_pointer = wl_seat_get_pointer(wl_seat);
 		struct wlr_wl_pointer *pointer;
 		if (!(pointer = calloc(sizeof(struct wlr_wl_pointer), 1))) {
@@ -25,6 +28,7 @@ static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
 	}
 
 	if ((caps & WL_SEAT_CAPABILITY_KEYBOARD)) {
+		wlr_log(L_DEBUG, "seat %p offered keyboard", wl_seat);
 		struct wl_keyboard *wl_keyboard = wl_seat_get_keyboard(wl_seat);
 		struct wlr_wl_keyboard *keyboard;
 		if (!(keyboard = calloc(sizeof(struct wlr_wl_pointer), 1))) {
@@ -42,7 +46,7 @@ static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
 static void seat_handle_name(void *data, struct wl_seat *wl_seat, const char *name) {
 	struct wlr_wl_seat *seat = data;
 	assert(seat->wl_seat == wl_seat);
-	seat->name = name;
+	seat->name = strdup(name);
 }
 
 const struct wl_seat_listener seat_listener = {

include/wlr/wayland.h

@@ -7,11 +7,13 @@
 struct wlr_wl_seat {
 	struct wl_seat *wl_seat;
 	uint32_t capabilities;
-	const char *name;
+	char *name;
 	list_t *keyboards;
 	list_t *pointers;
 };
 
+void wlr_wl_seat_free(struct wlr_wl_seat *seat);
+
 struct wlr_wl_output_mode {
 	uint32_t flags; // enum wl_output_mode
 	int32_t width, height;
@@ -21,8 +23,8 @@ struct wlr_wl_output_mode {
 struct wlr_wl_output {
 	struct wl_output *wl_output;
 	uint32_t flags;
-	const char *make;
+	char *make;
-	const char *model;
+	char *model;
 	uint32_t scale;
 	int32_t x, y;
 	int32_t phys_width, phys_height; // mm
@@ -32,6 +34,8 @@ struct wlr_wl_output {
 	struct wlr_wl_output_mode *current_mode;
 };
 
+void wlr_wl_output_free(struct wlr_wl_output *output);
+
 struct wlr_wl_keyboard {
 	struct wl_keyboard *wl_keyboard;
 };

wayland/CMakeLists.txt

@@ -0,0 +1,14 @@
+include_directories(
+	${PROTOCOLS_INCLUDE_DIRS}
+	${WAYLAND_INCLUDE_DIR}
+)
+
+add_library(wlr-wayland
+    types/wlr_wl_seat.c
+    types/wlr_wl_output.c
+)
+
+target_link_libraries(wlr-wayland
+    wlr-common
+    ${WAYLAND_LIBRARIES}
+)

wayland/types/wlr_wl_output.c

@@ -0,0 +1,16 @@
+#include <stdlib.h>
+#include <wayland-client.h>
+#include "wlr/wayland.h"
+#include "wlr/common/list.h"
+
+void wlr_wl_output_free(struct wlr_wl_output *output) {
+	if (!output) return;
+	if (output->wl_output) wl_output_destroy(output->wl_output);
+	if (output->make) free(output->make);
+	if (output->model) free(output->model);
+	for (size_t i = 0; output->modes && i < output->modes->length; ++i) {
+		free(output->modes->items[i]);
+	}
+	list_free(output->modes);
+	free(output);
+}

wayland/types/wlr_wl_seat.c

@@ -0,0 +1,19 @@
+#include <stdlib.h>
+#include <wayland-client.h>
+#include "wlr/wayland.h"
+#include "wlr/common/list.h"
+
+void wlr_wl_seat_free(struct wlr_wl_seat *seat) {
+	if (!seat) return;
+	if (seat->wl_seat) wl_seat_destroy(seat->wl_seat);
+	if (seat->name) free(seat->name);
+	if (seat->keyboards) {
+		// TODO: free children
+		list_free(seat->keyboards);
+	}
+	if (seat->pointers) {
+		// TODO: free children
+		list_free(seat->keyboards);
+	}
+	free(seat);
+}