void Parser::IncludedFile::save_conditional(Cond *c, int rh)
{
CC_STRING tmp;
static const char *directives[] = {NULL, "if", "elif", "else"};
assert(c->type <= Cond::CT_ELSE);
if(directives[c->type]) {
tmp.Format(" %-4u %s %s ", rh, directives[c->type], (c->value ? "true" : "false"));
cr_text += tmp;
if(c->boff)
tmp.Format("%u,%d ", c->begin, c->boff);
else
tmp.Format("%u ", c->begin);
cr_text += tmp;
if(c->eoff)
tmp.Format("%u,%d\n", c->end, c->eoff);
else
tmp.Format("%u\n", c->end);
cr_text += tmp;
}
}
/* Parse the input file and update the global symbol table and macro table,
* output the stripped file contents to devices if OUTFILE is not nil.
*
* Returns a pointer to the error messages on failure, or nil on success.
*/
bool Parser::DoFile(InternalTables *intab, size_t num_preprocessors, File *infile, ParserContext *ctx)
{
bool ignored;
FILE *out_fp;
bool retval = false;
CC_STRING bak_fname, out_fname;
struct stat stb;
struct utimbuf utb;
if(ctx) {
ignored = ctx->check_ignore(infile->name);
if( ignored && ! has_dep_file() )
return true;
} else
ignored = false;
if( stat(infile->name, &stb) == 0 ) {
utb.actime = stb.st_atime;
utb.modtime = stb.st_mtime;
}
if( ! infile->Open() ) {
errmsg.Format("Cannot open \"%s\" for reading\n");
return false;
}
out_fp = NULL;
if(ctx != NULL && ctx->outfile != ParserContext::OF_NULL ) {
if( ctx->outfile == ParserContext::OF_STDOUT )
out_fp = stdout;
else {
#if SANITY_CHECK
assert( ! ctx->baksuffix.isnull() );
#endif
if( ctx->baksuffix[0] != ParserContext::MAGIC_CHAR )
bak_fname = infile->name + ctx->baksuffix;
else
out_fname = infile->name;
int fd;
char tmp_outfile[32];
strcpy(tmp_outfile, "@cl@-XXXXXX");
fd = mkstemp(tmp_outfile);
if( fd < 0 ) {
errmsg.Format("Cannot open \"%s\" for writing\n", tmp_outfile);
infile->Close();
return false;
}
out_fp = fdopen(fd, "wb");
out_fname = tmp_outfile;
}
}
if(ctx == NULL)
memset(writers, 0, sizeof(writers));
else {
writers[VCH_CL] = NULL;
if(!ctx->of_array[VCH_DEP].isnull())
writers[VCH_DEP] = gvar_file_writers[VCH_DEP];
if(!ctx->of_array[VCH_CV].isnull())
writers[VCH_CV] = gvar_file_writers[VCH_CV];
}
if( num_preprocessors >= COUNT_OF(Parser::preprocessors) )
num_preprocessors = COUNT_OF(Parser::preprocessors);
Reset(intab, num_preprocessors, ctx);
if(has_dep_file())
AddDependency("", infile->name);
PushIncludedFile(infile, out_fp, COUNT_OF(Parser::preprocessors), false, conditionals.size());
if(ctx != NULL) {
GetCmdLineIncludeFiles(ctx->imacro_files, 2);
GetCmdLineIncludeFiles(ctx->include_files, COUNT_OF(preprocessors));
}
if( ! RunEngine(0) )
goto error;
SaveDepInfo(deptext);
if( conditionals.size() != 0 )
errmsg = "Unmatched #if";
else
retval = true;
error:
if(!retval) {
if(included_files.size() > 0) {
CC_STRING tmp;
tmp.Format("%s:%u: %s\n%s\n", GetCurrentFileName().c_str(), GetCurrentLineNumber(), pline.from.c_str(), GetError());
errmsg = tmp;
}
#if 0
IncludedFile *ilevel;
while(included_files.size() > 0) {
ilevel = PopIncludedFile();
if(infile != ilevel->ifile)
delete ilevel;
}
#endif
}
if(out_fp != NULL && out_fp != stdout)
fclose(out_fp);
if( retval && ctx != NULL && ! ignored ) {
CC_STRING semname;
sem_t *sem;
semname = MakeSemaName(infile->name);
sem = sem_open(semname.c_str(), O_CREAT, 0666, 1);
sem_wait(sem);
if( ! bak_fname.isnull() )
rename(infile->name, bak_fname);
if( ! out_fname.isnull() ) {
rename(out_fname, infile->name);
utime(infile->name.c_str(), &utb);
}
sem_post(sem);
sem_unlink(semname.c_str());
} else if( ! out_fname.isnull() )
unlink(out_fname.c_str());
return retval;
}