Prevent memory errors on home page

build.zig

@@ -31,7 +31,11 @@ pub fn build(b: *std.Build) void {
     // exe.linkSystemLibrary("raylib");
     exe.linkSystemLibrary("curl");
     exe.addObjectFile(.{
-        .cwd_relative = "/opt/homebrew/Cellar/raylib/5.0/lib/libraylib.a",
+        .cwd_relative = switch (target.result.os.tag) {
+            .macos => "/opt/homebrew/Cellar/raylib/5.0/lib/libraylib.a",
+            .linux => "./libraylib.a",
+            else => @panic("Unsupported platform"),
+        },
     });
     // exe.addObjectFile(.{
     //     .cwd_relative = "/opt/homebrew/Cellar/curl/8.5.0/lib/libcurl.a",
@@ -40,12 +44,20 @@ pub fn build(b: *std.Build) void {
         .cwd_relative = "/opt/homebrew/Cellar/raylib/5.0/include",
     });
     // Raylib dependencies
-    exe.linkFramework("Foundation");
-    exe.linkFramework("CoreVideo");
-    exe.linkFramework("IOKit");
-    exe.linkFramework("Cocoa");
-    exe.linkFramework("GLUT");
-    exe.linkFramework("OpenGL");
+    switch (target.result.os.tag) {
+        .macos => {
+            exe.linkFramework("Foundation");
+            exe.linkFramework("CoreVideo");
+            exe.linkFramework("IOKit");
+            exe.linkFramework("Cocoa");
+            exe.linkFramework("GLUT");
+            exe.linkFramework("OpenGL");
+        },
+        .linux => {
+            exe.linkSystemLibrary("c");
+        },
+        else => @panic("Unsupported platform"),
+    }
 
     // This declares intent for the executable to be installed into the
     // standard location when the user invokes the "install" step (the default

src/departure.zig

@@ -4,7 +4,7 @@ const rl = raylib.rl;
 const AppState = @import("state.zig");
 const Curl = @import("curl.zig");
 const C = @cImport({
-    @cDefine("_XOPEN_SOURE", "");
+    @cDefine("_XOPEN_SOURCE", "");
     @cInclude("time.h");
 });
 
@@ -65,6 +65,8 @@ fn fetchThread(state: *AppState) !void {
         defer result.deinit();
         _ = curl.setopt(.write_function, Curl.Utils.array_list_append);
         _ = curl.setopt(.write_data, &result);
+        _ = curl.setopt(.low_speed_limit, @as(c_long, 128));
+        _ = curl.setopt(.low_speed_time, @as(c_long, 5));
 
         const code = curl.perform();
         std.debug.print("[departure/fetchThread] cURL Code: {}\n", .{code});
@@ -434,7 +436,7 @@ fn draw_ns(state: *AppState) !void {
     const header_height = rl.MeasureTextEx(font, "Vertrek", header_fs, 1).y;
     rl.DrawRectangle(0, 0, rl.GetScreenWidth(), 4 + @as(c_int, @intFromFloat(header_height)) + 4, ns_bg2);
     raylib.DrawTextEx(font, if (language == 0) "Vertrek" else "Depart", 8, 4, header_fs, 1, ns_fg1);
-    raylib.DrawTextEx(font, if (language == 0) "Naar/Opmerking" else "To/Via", 8 + col1w + 8, 4, header_fs, 1, ns_fg1);
+    raylib.DrawTextEx(font, if (language == 0) "Naar/Opmerking" else "To/Remarks", 8 + col1w + 8, 4, header_fs, 1, ns_fg1);
     raylib.DrawTextEx(font, if (language == 0) "Spoor" else "Platform", @floatFromInt(rl.GetScreenWidth() - 200), 4, header_fs, 1, ns_fg1);
 
     var y = header_height + 8 + 2;

src/home.zig

@@ -44,6 +44,8 @@ fn fetchThread(state: *AppState) !void {
         defer result.deinit();
         _ = curl.setopt(.write_function, Curl.Utils.array_list_append);
         _ = curl.setopt(.write_data, &result);
+        _ = curl.setopt(.low_speed_limit, @as(c_long, 128));
+        _ = curl.setopt(.low_speed_time, @as(c_long, 5));
 
         const code = curl.perform();
         std.debug.print("[home/fetchThread] cURL Code: {}\n", .{code});
@@ -70,6 +72,8 @@ fn fetchThread(state: *AppState) !void {
                 }
             }
         }
+        state.home_screen_state.mutex.lock();
+        defer state.home_screen_state.mutex.unlock();
         if (state.home_screen_state.suggestions.len > 0) {
             for (state.home_screen_state.suggestions) |suggestion| {
                 allocator.free(suggestion.id);
@@ -92,8 +96,14 @@ pub fn render(state: *AppState) !void {
     }
 
     while (raylib.GetCharPressed()) |char| {
-        hs.station_name.appendAssumeCapacity(@intCast(char));
+        if (hs.station_name.items.len < hs.station_name_max_len) {
+            hs.station_name.appendAssumeCapacity(@intCast(char));
+        }
     }
+
+    state.home_screen_state.mutex.lock();
+    defer state.home_screen_state.mutex.unlock();
+
     while (raylib.GetKeyPressed()) |key| {
         switch (key) {
             rl.KEY_BACKSPACE => {

src/main.zig

@@ -5,6 +5,8 @@ const home = @import("home.zig");
 const departure = @import("departure.zig");
 const AppState = @import("state.zig");
 
+const noto = @embedFile("./noto.ttf");
+
 pub fn main() !void {
     var gpa = std.heap.GeneralPurposeAllocator(.{}){};
     const allocator = gpa.allocator();
@@ -25,11 +27,12 @@ pub fn main() !void {
     var station_id_buffer: [10]u8 = .{0} ** 10;
     var appState = AppState{
         .allocator = allocator,
-        .font = rl.LoadFontEx("./noto.ttf", 64, cp, cp_cnt),
+        .font = rl.LoadFontFromMemory(".ttf", noto, noto.len, 64, cp, cp_cnt),
         .db_font = raylib.LoadFontEx("./private/db.ttf", 64, cp, cp_cnt),
         .ns_font = raylib.LoadFontEx("./private/ns.ttf", 64, cp, cp_cnt),
         .home_screen_state = .{
             .station_name = std.ArrayListUnmanaged(u8).initBuffer(&station_name_buffer),
+            .station_name_max_len = station_name_buffer.len - 1,
         },
         .departure_screen_state = .{
             .platform = std.ArrayListUnmanaged(u8).initBuffer(&platform_buffer),

src/state.zig

@@ -13,7 +13,9 @@ pub const HSSuggestion = struct {
 };
 
 pub const HomeScreenState = struct {
+    mutex: std.Thread.Mutex = .{},
     station_name: std.ArrayListUnmanaged(u8),
+    station_name_max_len: usize,
     fetch_thread: ?std.Thread = null,
     suggestions: []HSSuggestion = &.{},
     selection_idx: i8 = 0,