87 lines
2.2 KiB
Markdown
87 lines
2.2 KiB
Markdown
# functions
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var received_fd = @as(i32, cmsg.dataPtr().*);
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std.mem.copy(u8, buffer, &msg_buffer);
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@ptrCast(*std.x.os.Socket.Message, &m)
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os.exit(0xff);
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var network_envvar = std.process.getEnvVarOwned(fba, "IPC_NETWORK") catch |err| switch(err) {
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// error{ OutOfMemory, EnvironmentVariableNotFound, InvalidUtf8 } (ErrorSet)
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.EnvironmentVariableNotFound => { return; }, // no need to contact IPCd
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else => { return err; },
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};
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const log = std.log.scoped(.libipc_context);
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log.err("context.deinit(): IndexOutOfBounds", .{});
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log.debug("stuff(): IndexOutOfBounds", .{});
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# Functions done
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receive_fd
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send_fd
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# switch
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An example of `catch |err| switch(err)`.
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# Test stuff
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zig test src/main.zig
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# Documentation
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zig build-exe -femit-docs -fno-emit-bin src/main.zig
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ACCESS_LOGS ?= ./access.log
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servedoc:
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darkhttpd docs/ --addr 127.0.0.1 --port 35000 --log $(ACCESS_LOGS)
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### Frustration
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Searching for a type, this type depends on a sub-type, which depends on the OS, which ultimately... cannot be documented automatically.
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Example:
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std.fs.File.Mode => const Mode: "mode_t" = os.mode_t;
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os.mode_t => const mode_t: "mode_t" = system.mode_t;
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### anytype
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// create a server path for the UNIX socket based on the service name
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pub fn server_path(self: *Self, service_name: []const u8, writer: anytype) !void {
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try writer.print("{s}/{s}", .{ self.rundir, service_name });
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}
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From
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var buffer: [1000]u8 = undefined;
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var fbs = std.io.fixedBufferStream(&buffer);
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var writer = fbs.writer();
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try ctx.server_path("simple-context-test", writer);
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var path = fbs.getWritten();
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To
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var buffer: [1000]u8 = undefined;
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var path = try std.fmt.bufPrint(&buffer, "{s}/{s}", .{ ctx.rundir, "simple-context-test" });
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# Errors
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Double returning type => no need for specific return structures.
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# Timer
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const Timer = std.time.Timer;
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var timer = try Timer.start();
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var duration = timer.read() / 1000000; // ns -> ms
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var value = db.get(key) orelse return error.notHere;
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# There is still room for improvement.
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When the result actually is a single value (anonymous hash).
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src/switch.zig:125:37: error: binary operator `|` has whitespace on one side, but not the other.
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self.db.fetchSwapRemove(fd) |k,v|{
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