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| author | Josh Stone <jistone@redhat.com> | 2009-09-02 16:14:08 -0700 |
|---|---|---|
| committer | Josh Stone <jistone@redhat.com> | 2009-09-02 16:14:08 -0700 |
| commit | aca66a36681ac7cbf7fcc2eac4dafc83d6559ef9 (patch) | |
| tree | 0e8f39ae14f5793b37b0565c4a17811b696c9f9b /tapset-perfmon.cxx | |
| parent | d185503c723ded087ff987e8fa08c2418e60006b (diff) | |
| download | systemtap-steved-aca66a36681ac7cbf7fcc2eac4dafc83d6559ef9.tar.gz systemtap-steved-aca66a36681ac7cbf7fcc2eac4dafc83d6559ef9.tar.xz systemtap-steved-aca66a36681ac7cbf7fcc2eac4dafc83d6559ef9.zip | |
Unify lex_cast* and avoid string copies
We always use lex_cast either to string or from string, so I made that
explicit, and got rid of some string copies in the process. There was
also stringify(), which was redundant to lex_cast<string>.
We also always used lex_cast_hex to string, so that's now hard-coded and
again eliminated a string copy.
For lex_cast_qstring<string>, there's no need to write the streamify the
input, so a specialization now operates directly on the input.
Hopefully this is a bit cleaner, and I do measure it to be a little
faster on scripts with many probes.
Diffstat (limited to 'tapset-perfmon.cxx')
| -rw-r--r-- | tapset-perfmon.cxx | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tapset-perfmon.cxx b/tapset-perfmon.cxx index 827e88ca..56abb997 100644 --- a/tapset-perfmon.cxx +++ b/tapset-perfmon.cxx @@ -59,7 +59,7 @@ perfmon_var_expanding_visitor::visit_target_symbol (target_symbol *e) string fname = string("_perfmon_tvar_get") + "_" + e->base_name.substr(1) - + "_" + lex_cast<string>(counter_number); + + "_" + lex_cast(counter_number); if (e->base_name != "$counter") throw semantic_error ("target variables not available to perfmon probes"); @@ -70,7 +70,7 @@ perfmon_var_expanding_visitor::visit_target_symbol (target_symbol *e) e->assert_no_components("perfmon"); ec->code = "THIS->__retvalue = _pfm_pmd_x[" + - lex_cast<string>(counter_number) + "].reg_num;"; + lex_cast(counter_number) + "].reg_num;"; ec->code += "/* pure */"; fdecl->name = fname; fdecl->body = ec; @@ -390,7 +390,7 @@ perfmon_derived_probe_group::emit_module_init (translator_output* o) /* output the needed bits for pmc here */ for (unsigned i=0; i < outp.pfp_pmc_count; i++) { o->newline() << "{.reg_num=" << pc[i].reg_num << ", " - << ".reg_value=" << lex_cast_hex<string>(pc[i].reg_value) + << ".reg_value=" << lex_cast_hex(pc[i].reg_value) << "},"; } |