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d29871977f
We already have a LICENSE file that covers the Zig Standard Library. We no longer need to remind everyone that the license is MIT in every single file. Previously this was introduced to clarify the situation for a fork of Zig that made Zig's LICENSE file harder to find, and replaced it with their own license that required annual payments to their company. However that fork now appears to be dead. So there is no need to reinforce the copyright notice in every single file.
65 lines
2.5 KiB
Zig
65 lines
2.5 KiB
Zig
const std = @import("../std.zig");
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const valgrind = std.valgrind;
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pub const CallgrindClientRequest = enum(usize) {
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DumpStats = valgrind.ToolBase("CT"),
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ZeroStats,
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ToggleCollect,
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DumpStatsAt,
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StartInstrumentation,
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StopInstrumentation,
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};
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fn doCallgrindClientRequestExpr(default: usize, request: CallgrindClientRequest, a1: usize, a2: usize, a3: usize, a4: usize, a5: usize) usize {
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return valgrind.doClientRequest(default, @intCast(usize, @enumToInt(request)), a1, a2, a3, a4, a5);
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}
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fn doCallgrindClientRequestStmt(request: CallgrindClientRequest, a1: usize, a2: usize, a3: usize, a4: usize, a5: usize) void {
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_ = doCallgrindClientRequestExpr(0, request, a1, a2, a3, a4, a5);
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}
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/// Dump current state of cost centers, and zero them afterwards
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pub fn dumpStats() void {
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doCallgrindClientRequestStmt(.DumpStats, 0, 0, 0, 0, 0);
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}
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/// Dump current state of cost centers, and zero them afterwards.
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/// The argument is appended to a string stating the reason which triggered
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/// the dump. This string is written as a description field into the
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/// profile data dump.
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pub fn dumpStatsAt(pos_str: [*]u8) void {
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doCallgrindClientRequestStmt(.DumpStatsAt, @ptrToInt(pos_str), 0, 0, 0, 0);
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}
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/// Zero cost centers
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pub fn zeroStats() void {
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doCallgrindClientRequestStmt(.ZeroStats, 0, 0, 0, 0, 0);
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}
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/// Toggles collection state.
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/// The collection state specifies whether the happening of events
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/// should be noted or if they are to be ignored. Events are noted
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/// by increment of counters in a cost center
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pub fn toggleCollect() void {
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doCallgrindClientRequestStmt(.ToggleCollect, 0, 0, 0, 0, 0);
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}
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/// Start full callgrind instrumentation if not already switched on.
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/// When cache simulation is done, it will flush the simulated cache;
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/// this will lead to an artificial cache warmup phase afterwards with
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/// cache misses which would not have happened in reality.
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pub fn startInstrumentation() void {
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doCallgrindClientRequestStmt(.StartInstrumentation, 0, 0, 0, 0, 0);
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}
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/// Stop full callgrind instrumentation if not already switched off.
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/// This flushes Valgrinds translation cache, and does no additional
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/// instrumentation afterwards, which effectivly will run at the same
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/// speed as the "none" tool (ie. at minimal slowdown).
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/// Use this to bypass Callgrind aggregation for uninteresting code parts.
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/// To start Callgrind in this mode to ignore the setup phase, use
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/// the option "--instr-atstart=no".
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pub fn stopInstrumentation() void {
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doCallgrindClientRequestStmt(.StopInstrumentation, 0, 0, 0, 0, 0);
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}
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