| -rw-r--r-- | lib/sitecing_enflesher.ll | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/lib/sitecing_enflesher.ll b/lib/sitecing_enflesher.ll index bb667be..f833af2 100644 --- a/lib/sitecing_enflesher.ll +++ b/lib/sitecing_enflesher.ll @@ -195,66 +195,65 @@ void sitecing_enflesher::outs_close() { outs.close(); outs.clear(); /* * compare source and destination files. * * one can also keep a hash for the old one and compute one for the * output while writing, but I'm not sure if it's any better. Surely a * bit less accurate, unless we're going to compare it in case of * difference, anyway. */ bool overwrite = false; struct stat st_s, st_d; string fn_s = outs_filename+".new"; string fn_d = outs_filename; if(stat(fn_d.c_str(),&st_d)) { overwrite = true; }else{ if(stat(fn_s.c_str(),&st_s)) throw preprocessor_error(CODEPOINT,"failed to stat() supposedly created file"); if(st_s.st_size!=st_d.st_size) { overwrite = true; }else{ ifstream i_s(fn_s.c_str(),ios::in); if(!i_s) throw preprocessor_error(CODEPOINT,"failed to open supposedly created file"); ifstream i_d(fn_d.c_str(),ios::in); if(!i_d) throw preprocessor_error(CODEPOINT,"failed to open the old preprocessed source"); off_t remaining = st_s.st_size; char t1[2048]; char t2[sizeof(t1)]; while(remaining) { int rb = remaining; if(rb>sizeof(t1)) rb = sizeof(t1); if(i_s.read(t1,rb).gcount()!=rb) throw preprocessor_error(CODEPOINT,"error reading just created file"); if(i_d.read(t2,rb).gcount()!=rb) throw preprocessor_error(CODEPOINT,"error reading the old preprocessed source"); if(memcmp(t1,t2,rb)) { overwrite = true; break; } remaining -= rb; } } } if(overwrite) { - cerr << "renaming '" << fn_s << "'" << endl; if(rename(fn_s.c_str(),fn_d.c_str())) throw preprocessor_error(CODEPOINT,"failed to rename() generated output"); } } outs_filename.erase(); } void sitecing_enflesher::outs_open(const string& nfile) { outs_close(); outs_filename = nfile; outs.open((nfile+".new").c_str(),ios::trunc); if(!outs.good()) throw preprocessor_error(CODEPOINT,"failed to write preprocessor output"); } /* * vim:set ft=lex: */ |