62 lines
2.3 KiB
V
62 lines
2.3 KiB
V
module c
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import v.ast
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pub struct ProfileCounterMeta {
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fn_name string
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vpc_name string
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vpc_calls string
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}
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fn (mut g Gen) profile_fn(fn_decl ast.FnDecl) {
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if g.pref.profile_no_inline && fn_decl.attrs.contains('inline') {
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g.defer_profile_code = ''
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return
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}
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fn_name := fn_decl.name
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if fn_name.starts_with('time.vpc_now') || fn_name.starts_with('v.profile.') {
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g.defer_profile_code = ''
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} else {
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measure_fn_name := if g.pref.os == .macos { 'time__vpc_now_darwin' } else { 'time__vpc_now' }
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fn_profile_counter_name := 'vpc_$g.last_fn_c_name'
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fn_profile_counter_name_calls := '${fn_profile_counter_name}_calls'
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g.writeln('')
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g.writeln('\tdouble _PROF_FN_START = ${measure_fn_name}();')
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g.writeln('\tif(v__profile_enabled) { $fn_profile_counter_name_calls++; } // $fn_name')
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g.writeln('')
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g.defer_profile_code = '\tif(v__profile_enabled) { $fn_profile_counter_name += ${measure_fn_name}() - _PROF_FN_START; }'
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g.pcs_declarations.writeln('double $fn_profile_counter_name = 0.0; u64 $fn_profile_counter_name_calls = 0;')
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g.pcs << ProfileCounterMeta{
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fn_name: g.last_fn_c_name
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vpc_name: fn_profile_counter_name
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vpc_calls: fn_profile_counter_name_calls
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}
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}
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}
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pub fn (mut g Gen) gen_vprint_profile_stats() {
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g.pcs_declarations.writeln('void vprint_profile_stats(){')
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fstring := '"%14llu %14.3fms %14.0fns %s \\n"'
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if g.pref.profile_file == '-' {
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for pc_meta in g.pcs {
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g.pcs_declarations.writeln('\tif ($pc_meta.vpc_calls) printf($fstring, $pc_meta.vpc_calls, $pc_meta.vpc_name/1000000.0, $pc_meta.vpc_name/$pc_meta.vpc_calls, "$pc_meta.fn_name" );')
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}
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} else {
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g.pcs_declarations.writeln('\tFILE * fp;')
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g.pcs_declarations.writeln('\tfp = fopen ("$g.pref.profile_file", "w+");')
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for pc_meta in g.pcs {
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g.pcs_declarations.writeln('\tif ($pc_meta.vpc_calls) fprintf(fp, $fstring, $pc_meta.vpc_calls, $pc_meta.vpc_name/1000000.0, $pc_meta.vpc_name/$pc_meta.vpc_calls, "$pc_meta.fn_name" );')
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}
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g.pcs_declarations.writeln('\tfclose(fp);')
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}
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g.pcs_declarations.writeln('}')
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g.pcs_declarations.writeln('')
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g.pcs_declarations.writeln('void vreset_profile_stats(){')
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for pc_meta in g.pcs {
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g.pcs_declarations.writeln('\t$pc_meta.vpc_calls = 0;')
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g.pcs_declarations.writeln('\t$pc_meta.vpc_name = 0.0;')
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}
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g.pcs_declarations.writeln('}')
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g.pcs_declarations.writeln('')
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}
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