1f97a5c6c8
Added cpu model Moved logging to defer done log Moved mem.init to bottom Updated again to new zig master
93 lines
3.2 KiB
Zig
93 lines
3.2 KiB
Zig
const serial = @import("serial.zig");
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const std = @import("std");
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const fmt = std.fmt;
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/// The errors that can occur when logging
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const LoggingError = error{};
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/// The OutStream for the format function
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const OutStream = std.io.OutStream(void, LoggingError, logCallback);
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pub const Level = enum {
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INFO,
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DEBUG,
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WARNING,
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ERROR,
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};
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fn logCallback(context: void, str: []const u8) LoggingError!usize {
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serial.writeBytes(str, serial.Port.COM1);
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return str.len;
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}
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///
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/// Write a message to the log output stream with a certain logging level.
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///
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/// Arguments:
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/// IN comptime level: Level - The logging level to use. Determines the message prefix and whether it is filtered.
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/// IN comptime format: []const u8 - The message format. Uses the standard format specification options.
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/// IN args: var - A struct of the parameters for the format string.
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///
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pub fn log(comptime level: Level, comptime format: []const u8, args: var) void {
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fmt.format(OutStream{ .context = {} }, "[" ++ @tagName(level) ++ "] " ++ format, args) catch unreachable;
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}
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///
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/// Write a message to the log output stream with the INFO level.
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///
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/// Arguments:
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/// IN comptime format: []const u8 - The message format. Uses the standard format specification options.
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/// IN args: var - A struct of the parameters for the format string.
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///
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pub fn logInfo(comptime format: []const u8, args: var) void {
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log(Level.INFO, format, args);
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}
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///
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/// Write a message to the log output stream with the DEBUG level.
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///
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/// Arguments:
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/// IN comptime format: []const u8 - The message format. Uses the standard format specification options.
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/// IN args: var - A struct of the parameters for the format string.
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///
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pub fn logDebug(comptime format: []const u8, args: var) void {
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log(Level.DEBUG, format, args);
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}
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///
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/// Write a message to the log output stream with the WARNING level.
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///
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/// Arguments:
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/// IN comptime format: []const u8 - The message format. Uses the standard format specification options.
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/// IN args: var - A struct of the parameters for the format string.
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///
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pub fn logWarning(comptime format: []const u8, args: var) void {
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log(Level.WARNING, format, args);
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}
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///
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/// Write a message to the log output stream with the ERROR level.
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///
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/// Arguments:
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/// IN comptime format: []const u8 - The message format. Uses the standard format specification options.
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/// IN args: var - A struct of the parameters for the format string.
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///
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pub fn logError(comptime format: []const u8, args: var) void {
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log(Level.ERROR, format, args);
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}
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pub fn runtimeTests() void {
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inline for (@typeInfo(Level).Enum.fields) |field| {
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const level = @field(Level, field.name);
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log(level, "Test " ++ field.name ++ " level\n", .{});
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log(level, "Test " ++ field.name ++ " level with args {}, {}\n", .{ "a", @as(u32, 1) });
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const logFn = switch (level) {
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.INFO => logInfo,
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.DEBUG => logDebug,
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.WARNING => logWarning,
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.ERROR => logError,
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};
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logFn("Test " ++ field.name ++ " function\n", .{});
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logFn("Test " ++ field.name ++ " function with args {}, {}\n", .{ "a", @as(u32, 1) });
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}
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}
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