88 lines
2.8 KiB
Zig
88 lines
2.8 KiB
Zig
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const std = @import("../index.zig");
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const valgrind = std.valgrind;
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pub const CallgrindClientRequest = extern enum {
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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,
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a1: usize, a2: usize, a3: usize, a4: usize, a5: usize
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) usize
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{
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return valgrind.doClientRequest(
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default,
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@intCast(usize, @enumToInt(request)),
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a1, a2, a3, a4, a5);
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}
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fn doCallgrindClientRequestStmt(request: CallgrindClientRequest,
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a1: usize, a2: usize, a3: usize, a4: usize, a5: usize
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) void
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{
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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(CallgrindClientRequest.DumpStats,
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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(CallgrindClientRequest.DumpStatsAt,
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@ptrToInt(pos_str),
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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(CallgrindClientRequest.ZeroStats,
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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(CallgrindClientRequest.ToggleCollect,
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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(CallgrindClientRequest.StartInstrumentation,
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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(CallgrindClientRequest.StopInstrumentation,
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0, 0, 0, 0, 0);
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}
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