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mach: ResourceManager: implement storage and unload of resources

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iddev5 2022-06-20 18:38:19 +05:30 • committed by Stephen Gutekanst
parent e58fd44ec0
commit b0a00c5581
1 changed files with 17 additions and 3 deletions
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20
src/resource/ResourceManager.zig
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@ -6,7 +6,7 @@ const ResourceManager = @This();
allocator: std.mem.Allocator,
paths: []const []const u8,
resource_types: []const ResourceType,
resources: std.ArrayListUnmanaged(Resource) = .{},
resources: std.StringHashMapUnmanaged(Resource) = .{},
cwd: std.fs.Dir,
pub fn init(allocator: std.mem.Allocator, paths: []const []const u8, resource_types: []const ResourceType) !ResourceManager {
@ -28,6 +28,9 @@ pub const ResourceType = struct {
};
pub fn getResource(self: *ResourceManager, uri: []const u8) !Resource {
if (self.resources.get(uri)) |res|
return res;
var file: ?std.fs.File = null;
const uri_data = try uri_parser.parseUri(uri);
@ -44,15 +47,26 @@ pub fn getResource(self: *ResourceManager, uri: []const u8) !Resource {
if (file) |f| {
var data = try f.reader().readAllAlloc(self.allocator, std.math.maxInt(usize));
errdefer data.deinit();
errdefer self.allocator.free(data);
return Resource{ .resource = @ptrCast(*anyopaque, &data.ptr), .size = data.len };
const res = Resource{
.uri = try self.allocator.dupe(u8, uri),
.resource = @ptrCast(*anyopaque, &data.ptr),
.size = data.len,
};
try self.resources.putNoClobber(self.allocator, uri, res);
return res;
}
return error.ResourceNotFound;
}
pub fn unloadResource(self: *ResourceManager, res: Resource) void {
_ = self.resources.remove(res.uri);
}
pub const Resource = struct {
uri: []const u8,
resource: *anyopaque,
size: u64,