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Add battery capacity support on FreeBSD

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This commit is contained in:
Lars Engels 2026-05-14 12:32:14 +02:00
commit 1241a0ac1e
1 changed files with 30 additions and 9 deletions
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39
src/main.zig
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@ -43,6 +43,8 @@ const DisplayServer = @import("enums.zig").DisplayServer;
const Environment = @import("Environment.zig");
const Entry = Environment.Entry;
const sysctl = if (builtin.os.tag == .freebsd) @cImport(@cInclude("sys/sysctl.h")) else struct {};
const ly_version_str = "Ly version " ++ build_options.version;
var session_pid: std.posix.pid_t = -1;
@ -2314,19 +2316,38 @@ fn adjustBrightness(io: std.Io, cmd: []const u8) !void {
}
fn getBatteryPercentage(io: std.Io, battery_id: []const u8) !u8 {
const path = try std.fmt.allocPrint(temporary_allocator, "/sys/class/power_supply/{s}/capacity", .{battery_id});
defer temporary_allocator.free(path);
if (builtin.os.tag == .freebsd) {
// battery_id is unused on FreeBSD; sysctl exposes a single aggregate value.
// For multi-battery systems the MIB would be hw.acpi.battery.N.life,
// but hw.acpi.battery.life is the standard single-battery interface.
var capacity: c_int = undefined;
var size: usize = @sizeOf(c_int);
const battery_file = try std.Io.Dir.cwd().openFile(io, path, .{});
defer battery_file.close(io);
const ret = sysctl.sysctlbyname("hw.acpi.battery.life", &capacity, &size, null, 0);
var buffer: [8]u8 = undefined;
const bytes_read = try battery_file.readStreaming(io, &.{&buffer});
const capacity_str = buffer[0..bytes_read];
if (ret != 0) {
return error.SysctlFailed;
}
const trimmed = std.mem.trimEnd(u8, capacity_str, "\n\r");
if (capacity < 0 or capacity > 100) {
return error.InvalidBatteryCapacity;
}
return @intCast(capacity);
} else {
const path = try std.fmt.allocPrint(temporary_allocator, "/sys/class/power_supply/{s}/capacity", .{battery_id});
defer temporary_allocator.free(path);
return try std.fmt.parseInt(u8, trimmed, 10);
const battery_file = try std.Io.Dir.cwd().openFile(io, path, .{});
defer battery_file.close(io);
var buffer: [8]u8 = undefined;
const bytes_read = try battery_file.readStreaming(io, &.{&buffer});
const capacity_str = buffer[0..bytes_read];
const trimmed = std.mem.trimEnd(u8, capacity_str, "\n\r");
return try std.fmt.parseInt(u8, trimmed, 10);
}
}
fn getAuthErrorMsg(err: anyerror, lang: Lang) []const u8 {