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main.c
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/*
System: Structured text retrieval tool sgrep.
Module: main.c
Author: Pekka Kilpeläinen & Jani Jaakkola
Description: Command line parsing. All work is done elsewhere
pattern matching, evaluation and output
Version history: Original version February 1995 by JJ & PK
Copyright: University of Helsinki, Dept. of Computer Science
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <limits.h>
#include "sgrep.h"
#if HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
extern int index_main(SgrepData *,int argc, char **argv);
/*
* struct for list of expression strings ( or files ) to be executed
*/
enum ExpressionType { E_FILE,E_TEXT };
struct Expression {
enum ExpressionType type; /* If this is a file, or command line */
char *expr; /* Pointer to either filename or expression */
struct Expression *next;
};
void show_stats();
void show_times();
int get_options(char *[]);
void add_command(char *);
SgrepString *read_expressions(SgrepData *sgrep,
struct Expression *expression_list);
int environ_options();
int run_stream(FileList *files, ParseTreeNode *, struct PHRASE_NODE *p_list);
int run_one_by_one(FileList *files, ParseTreeNode *,
struct PHRASE_NODE *p_list);
void create_constant_lists();
void delete_constant_lists();
/*
* Global variables used inside main.c . These are mainly used for storing
* information about given options
*/
SgrepData *sgrep;
int have_stats=0; /* Should we show statistics in the end (-T) */
int have_times=0; /* Should we show info about used time in the end (-t) */
int display_count=0; /* Should we display only count of matching regions (-c) */
int no_output=0; /* Should we supress normal output (-q) */
int show_expr=0; /* only show expression, don't execute it (-P) */
/* Which preprocessor to use (-p) */
char *preprocessor=DEFAULT_PREPROCESSOR;
int read_sgreprc=1; /* are we going to read sgreprc (-n) */
char *option_space=NULL; /* Allocated if SGREPOPT is used */
/* List of expressions */
struct Expression *last_expression=NULL;
int num_file_list_files=0;
char *file_list_files[MAX_FILE_LIST_FILES];
#if HAVE_TIMES
/*
* Struct for time information
*/
struct time_points {
struct tms start;
struct tms parsing;
struct tms acsearch;
struct tms eval;
struct tms output;
} tps;
#else
#define CALC_TIME(X) /* Nothing */
#define times(X) /* Nothing */
#endif
/*
* Struct for options
*/
struct OptionData {
char opt;
char *have_param;
char *what_does;
};
/*
* List & description of options
* If you add more options, add the descriptions here. Put the implementation
* of option in get_options()
*/
const struct OptionData option_data[]= {
{ 'a',NULL,"act as a filter" },
#if 0
{ 'C',NULL,"display copyright notice" },
#endif
{ 'c',NULL,"display only count of matching regions" },
{ 'D',NULL,"obsolete synonym for -v"},
{ 'd',NULL,"don't do concat on result list"},
{ 'h',NULL,"help (means this text)" },
{ 'i',NULL,"ignore case distinctions in phrases" },
{ 'I',NULL,"switches to indexing mode, when given as first option" },
{ 'l',NULL,"long output format" },
{ 'N',NULL,"don't add trailing newline" },
{ 'n',NULL,"don't read $HOME/"USER_SGREPRC" or "SYSTEM_SGREPRC},
{ 'P',NULL,"show preprocessed expression, don't execute it." },
{ 'q',NULL,"supress normal output" },
/* { 'R',NULL,"recurse into subdirectories" },
*/
{ 'S',NULL,"stream mode (regions extend across files)"},
{ 's',NULL,"short output format" },
{ 'T',NULL,"show statistics about what was done" },
#if HAVE_TIMES
{ 't',NULL,"show information about time spent"},
#endif
{ 'V',NULL,"display version information" },
{ 'v',NULL,"verbose mode. Shows what is going on"},
{ 'e',"<expression>","execute expression (after preprocessing)" },
{ 'f',"<file>","read expression from file" },
{ 'F',"<file>","read list of input files from <file> instead of command line" },
{ 'g',"<option>","set scanner option:" },
{ 'O',"<file>","reads output style from file"},
{ 'o',"<style>","set output style. See man page for details"},
#ifdef USE_EXEC
{ 'p',"<program>","preprocess expression using external preprocessor" },
#endif
{ 'w',"<char list>","set the list of characters used to recognize words" },
{ 'x',"<index file>","use given index file instead of scanner. Implies -S"},
{ 0,NULL,NULL }
};
int main(int argc, char *argv[])
{
ParseTreeNode *root;
struct PHRASE_NODE *p_list;
FileList *input_files=NULL;
int end_options;
struct SgrepStruct sgrep_main_instance;
/* First initialize the sgrep instance */
memset(&sgrep_main_instance,0,sizeof(sgrep_main_instance));
sgrep=&sgrep_main_instance;
sgrep->do_concat=1;
sgrep->error_stream=stderr;
sgrep->output_style=SHORT_OUTPUT; /* default is short */
sgrep->open_failure=OPEN_FAILURE;
sgrep->print_newline=1;
sgrep->stdin_temp_file=NULL; /* not read yet */
sgrep->print_all=0;
sgrep->chars_list=NULL;
sgrep->stream_mode=0;
sgrep->progress_stream=stderr;
sgrep->scanner_type=SGML_SCANNER;
/* Check, if we shoud be in indexing mode */
if ( (argc>0 && strcmp(argv[0],"sgindex")==0) ||
(argc>1 && strcmp(argv[1],"-I")==0) ) {
int r;
if (strcmp(argv[0],"sgindex")==0) {
r=index_main(sgrep,argc-1,argv+1);
} else {
r=index_main(sgrep,argc-2,argv+2);
}
check_memory_leaks(sgrep);
return r;
}
/* Mark starting time */
times(&tps.start);
/*
* Process environment options and command line options
*/
end_options=-1;
if (environ_options()==SGREP_ERROR ||
(end_options=get_options(argv+1))==SGREP_ERROR ||
(last_expression==NULL && end_options>=argc)
) {
/* There was error. Print usage information and exit */
const struct OptionData *o=option_data;
if (last_expression==NULL && end_options==argc) {
fprintf(stderr,"You have to give an expression line if you don't use -f or -e switch.\n");
}
fprintf(stderr,"Usage: sgrep [ -");
while (o->opt!=0) {
if (o->have_param!=NULL) {
fprintf(stderr," -%c %s",
o->opt,o->have_param);
} else fprintf(stderr,"%c",o->opt);
o++;
}
fprintf(stderr," ] \'expr\' [<files...>]\n");
fprintf(stderr,"sgrep -h for help\n");
exit(2);
}
/*
* Shall we get expression from command line
*/
if (last_expression==NULL) {
struct Expression *e;
assert(end_options<argc);
e=sgrep_new(struct Expression);
e->type=E_TEXT;
e->expr=sgrep_strdup(argv[end_options]);
e->next=last_expression;
last_expression=e;
end_options++;
}
/*
* Creating constant lists. They might be needed in the parse() step
*/
create_constant_lists();
/*
* Read, preprocess, parse and optimize
*/
{
SgrepString *expression;
char buf[32768];
expression=read_expressions(sgrep,last_expression);
if (!expression) {
exit(2);
}
/*
* Invoking preprocessor
*/
if (preprocess(sgrep,expression->s,buf,preprocessor,sizeof(buf))
==SGREP_ERROR) {
exit(2);
}
/* Free the unpreprocessed query */
delete_string(expression);
/*
* If we have show_expr then we show preprocessed expression, and
* stop here
*/
if (show_expr) {
fprintf(stdout,"%s\n",buf);
exit(0);
}
/*
* Invoking parser
*/
if ((root=parse_and_optimize(sgrep,buf,&p_list)) == NULL) {
sgrep_error(sgrep,"No query to evaluate. Bailing out.\n");
exit(2);
}
}
/* We have done the parsing step */
times(&tps.parsing);
/* Check for file list in index */
if (sgrep->index_reader) {
input_files=index_file_list(sgrep->index_reader);
}
if (sgrep->index_reader && input_files &&
(end_options<argc || num_file_list_files)) {
/* We had file list in index reader. */
sgrep_error(sgrep,
"Warning: -F options and command line file list ignored when using index (-x).\n");
}
if (!input_files) {
/*
* No index reader or file list in index_reader
* Scan input files
*/
input_files=check_files(sgrep,argc-end_options,
argv+end_options,
num_file_list_files,
file_list_files);
}
/*
* Evaluation style depends on sgrep->stream_mode
*/
if (sgrep->stream_mode)
run_stream(input_files,root,p_list);
else
run_one_by_one(input_files,root,p_list);
free_parse_tree(sgrep,root);
delete_constant_lists();
/*
* Should we show statistics
*/
if (have_stats) show_stats();
/*
* Should we show information about time spend
*/
if (have_times) show_times();
/* Free stuff */
delete_flist(input_files);
if (sgrep->index_reader) {
delete_index_reader(sgrep->index_reader);
}
if (sgrep->stdin_temp_file) {
delete_temp_file(sgrep->stdin_temp_file);
}
if (stats.region_lists_now>0) {
fprintf(stderr,"%d region lists still allocated\n",
stats.region_lists_now);
}
if (option_space) sgrep_free(option_space);
check_memory_leaks(sgrep);
if (stats.output==0) {
return 1; /* Empty result list */
}
/* non empty result list */
return 0;
}
#if 0
/*
* Displays the copyright notice.
*/
void copyright_notice()
{
int i;
for (i=0;copyright_text[i]!=NULL;i++)
{
printf("\t%s\n",copyright_text[i]);
}
}
#endif
#if HAVE_TIMES
static struct tms t_last;
void CALC_TIME(struct tms *TIME) {
struct tms t_now;
times(&t_now);
TIME->tms_utime+=t_now.tms_utime-t_last.tms_utime;
TIME->tms_stime+=t_now.tms_stime-t_last.tms_stime;
t_last=t_now;
}
#endif
/*
* Runs sgrep file by file
*/
int run_one_by_one(FileList *files, ParseTreeNode *root,
struct PHRASE_NODE *p_list)
{
RegionList *result;
int i;
int save_print_newline;
#if HAVE_TIMES
struct tms t_pmatch,t_eval,t_output;
t_last=tps.parsing;
t_pmatch.tms_utime=0;
t_pmatch.tms_stime=0;
t_eval=t_pmatch;
t_output=t_pmatch;
#endif
#ifdef DEBUG
fprintf(stderr,"one by one: input_files=%d\n",last_file);
#endif
save_print_newline=sgrep->print_newline;
sgrep->print_newline=0;
for (i=0;i<flist_files(files);i++) {
/* fprintf(stderr,"file #%d:%s\n",i,flist_name(files,i)); */
/* Got to clear root nodes gc list so that eval won't think
that it's already evaluated */
root->result=NULL;
/* chars list size is the size of file being evaluates */
sgrep->chars_list->length=flist_length(files,i);
search(sgrep,p_list,files,i,i);
CALC_TIME(&t_pmatch);
result=eval(sgrep,files,root);
stats.output+=LIST_SIZE(result);
CALC_TIME(&t_eval);
/* FIXME: save_sgrep->print_newline is a horrible historical kludge */
if (i==flist_files(files)-1) {
sgrep->print_newline=save_print_newline;
}
if ( !display_count && !no_output && (
LIST_SIZE(result)>0 || sgrep->print_all ))
{
write_region_list(sgrep,stdout,result,files);
}
/* We free result list,except when we got constant list
as result list */
if (stats.region_lists_now==stats.constant_lists+1)
{
free_gclist(result);
}
CALC_TIME(&t_output);
/*
* Now only constant lists should be left
*/
assert(stats.region_lists_now==stats.constant_lists);
}
if ( display_count && !no_output )
{
printf("%d\n",stats.output);
}
fflush(stdout);
#if HAVE_TIMES
tps.acsearch=tps.parsing;
tps.acsearch.tms_utime+=t_pmatch.tms_utime;
tps.acsearch.tms_stime+=t_pmatch.tms_stime;
tps.eval=tps.acsearch;
tps.eval.tms_utime+=t_eval.tms_utime;
tps.eval.tms_stime+=t_eval.tms_stime;
tps.output=tps.eval;
tps.output.tms_utime+=t_output.tms_utime;
tps.output.tms_stime+=t_output.tms_stime;
#endif
return SGREP_OK;
}
#undef DEBUG
/*
* Runs sgrep in stream mode
*/
int run_stream(FileList *files, ParseTreeNode *root, struct PHRASE_NODE *p_list)
{
RegionList *result;
/* Pattern matching on input files */
#ifdef DEBUG
fprintf(stderr,"Starting search\n");
#endif
if (search(sgrep,p_list,files,0,flist_files(files)-1)==SGREP_ERROR) {
return SGREP_ERROR;
}
times(&tps.acsearch);
/* Evaluate the expression */
#ifdef DEBUG
fprintf(stderr,"Evaluating.\n");
#endif
result=eval(sgrep,files,root);
if (result==NULL) return SGREP_ERROR;
if (stats.region_lists_now>stats.constant_lists+1) {
sgrep_error(sgrep,"Query leaked %d gc lists\n",
stats.region_lists_now-stats.constant_lists+1);
}
times(&tps.eval);
/* Outputting result */
#ifdef DEBUG
fprintf(stderr,"Output result.\n");
fflush(stderr);
#endif
stats.output=LIST_SIZE(result);
/* Should we show the count of matching regions */
if ( display_count )
{
printf("%d\n",LIST_SIZE(result));
}
/* We show result list only if there wasn't -c option, and there was
something to output */
if ( !display_count && !no_output && (
stats.output>0 || sgrep->print_all ))
write_region_list(sgrep,stdout,result,files);
free_gclist(result);
fflush(stdout);
times(&tps.output);
return SGREP_OK;
}
/*
* Prints help
*/
void print_help()
{
const struct OptionData *o;
printf("Usage: sgrep <options> 'region expression' [<files...>]\n");
printf("If no files are given stdin is used instead.\n");
printf("Use 'sgrep -I -h' or 'sgindex -h' for help on indexing mode options.\n");
printf("\noptions are:\n");
for (o=option_data;o->opt!=0;o++)
{
printf(" -%c %-12s %s\n",
o->opt,
(o->have_param==NULL) ?
"":
o->have_param,
o->what_does);
if (o->opt=='g') {
print_scanner_help();
}
}
printf(" -- %-12s no more options\n","");
printf("Options can also be specified with "ENV_OPTIONS" environment variable\n");
exit(0);
}
/*
* Creates and initializes the constant lists, start end and chars.
* They may need to be modified later, because when scanning each
* file separately end point keeps changing
*/
void create_constant_lists()
{
/* Chars list is optimized and created in a special way */
sgrep->chars_list=new_region_list(sgrep);
to_chars(sgrep->chars_list,1,1);
stats.constant_lists+=1;
}
void delete_constant_lists() {
free_gclist(sgrep->chars_list);
sgrep->chars_list=NULL;
stats.constant_lists-=1;
}
/*
* Catenates expression file to string
*/
int read_expression_file(SgrepString *str, const char *fname) {
FILE *stream;
char buf[1024];
int bytes;
SGREPDATA(str);
/* First add a newline, if there isn't one already */
if (str->length>0 && str->s[str->length-1]!='\n') {
string_cat(str,"\n");
}
if (fname[0]=='-' && fname[1]==0) {
/* Expression is coming from stdin */
stream=stdin;
string_cat(str,"#line 1 \"-\"\n");
} else {
stream=fopen(fname,"r");
if (stream==NULL) {
sgrep_error(sgrep,"Expression file '%s' : %s\n",
fname,strerror(errno));
return SGREP_ERROR;
}
string_cat(str,"#line 1 \"");
string_cat(str,fname);
string_cat(str,"\"\n");
}
do {
bytes=fread(buf,1,sizeof(buf)-1,stream);
buf[bytes]=0;
string_cat(str,buf);
} while (!feof(stream) && !ferror(stream));
if (ferror(stream)) {
sgrep_error(sgrep,"Reading file '%s' : %s\n",
fname,strerror(errno));
if (stream!=stdin) fclose(stream);
return SGREP_ERROR;
}
if (stream!=stdin) fclose(stream);
return SGREP_OK;
}
/*
* Reads the expression commands to com_file_buf
*/
SgrepString *read_expressions(SgrepData *sgrep,
struct Expression *expression_list) {
SgrepString *return_string;
if (expression_list==NULL) {
FILE *test_stream=NULL;
return_string=new_string(sgrep,8192);
/* Check for USER_SGREPRC */
if (read_sgreprc && getenv("HOME")) {
SgrepString *sgreprc=new_string(sgrep,1024);
string_cat(sgreprc,getenv("HOME"));
string_cat(sgreprc,"/");
string_cat(sgreprc,USER_SGREPRC);
test_stream=fopen(sgreprc->s,"r");
if (test_stream) {
/* found USER_SGREPRC */
if (read_expression_file(return_string,string_to_char(sgreprc))
==SGREP_ERROR) {
delete_string(return_string);
return_string=NULL;
}
}
delete_string(sgreprc);
}
/* Check for SYSTEM_SGREPRC */
if (read_sgreprc && !test_stream) {
test_stream=fopen(SYSTEM_SGREPRC,"r");
if (test_stream) {
if (read_expression_file(return_string,SYSTEM_SGREPRC)
==SGREP_ERROR) {
delete_string(return_string);
return_string=NULL;
}
}
}
if (test_stream) fclose(test_stream);
return return_string;
}
/* Shameless use of recursion */
return_string=read_expressions(sgrep,expression_list->next);
if (return_string!=NULL) {
switch(expression_list->type){
case E_FILE:
if (read_expression_file(return_string,expression_list->expr)
==SGREP_ERROR) {
delete_string(return_string);
return_string=NULL;
}
break;
case E_TEXT:
/* First add a newline, if there isn't one already */
if (return_string->length>0 &&
return_string->s[return_string->length-1]!='\n') {
string_cat(return_string,"\n");
}
string_cat(return_string,"#line 1 \"\"\n");
string_cat(return_string,expression_list->expr);
break;
}
}
sgrep_free(expression_list->expr);
sgrep_free(expression_list);
return return_string;
}
/*
* Reads output style from file
*/
void read_style_file(char *fname)
{
int fd;
int l,r;
fd=open(fname,O_RDONLY);
if (fd==-1)
{
sgrep_error(sgrep,"open style file %s : %s\n",fname,strerror(errno));
exit(2);
}
l=lseek(fd,0,SEEK_END);
if (l==-1)
{
sgrep_error(sgrep,"lseek style file %s : %s\n",fname,strerror(errno));
exit(2);
}
lseek(fd,0,SEEK_SET);
sgrep->output_style=(char *)sgrep_malloc(l+1);
r=read(fd,sgrep->output_style,l);
if (r==-1)
{
sgrep_error(sgrep,"read style file %s : %s\n",fname,strerror(errno));
exit(2);
}
if (r==0)
{
sgrep_error(sgrep,"Empty style file %s\n",fname);
exit(2);
}
sgrep->output_style[r]=0;
close(fd);
}
/*
* Checks the command line options
*/
int get_options(char *argv[])
{
int i,j;
i=1;
j=1;
while ( *argv!=NULL && *argv[0]=='-' )
{
/* option -- means no more options */
if (strcmp(*argv,"--")==0) return i+1;
switch((*argv)[j])
{
case 'h':
print_help();
break;
case 'V':
printf("sgrep version %s compiled at %s\n",
VERSION,__DATE__);
exit(0);
break;
case 'v':
sgrep->progress_output=1;
break;
case 'T':
have_stats=1;
break;
case 't':
have_times=1;
break;
case 'a':
sgrep->print_all=1;
break;
case 'i':
sgrep->ignore_case=1;
break;
case 'l':
sgrep->output_style=LONG_OUTPUT;
sgrep->do_concat=0;
break;
case 's':
sgrep->output_style=SHORT_OUTPUT;
sgrep->do_concat=1;
break;
case 'o':
sgrep->output_style=get_arg(sgrep,&argv,&i,&j);
if (!sgrep->output_style) return SGREP_ERROR;
sgrep->do_concat=0;
break;
case 'c':
display_count=1;
sgrep->do_concat=0;
no_output=0;
break;
case 'd':
sgrep->do_concat=0;
break;
case 'N':
sgrep->print_newline=0;
break;
#if 0
case 'C':
copyright_notice();
exit(0);
break;
#endif
case 'f': {
char *arg;
struct Expression *e;
arg=get_arg(sgrep,&argv,&i,&j);
if (arg==NULL) return SGREP_ERROR;
e=sgrep_new(struct Expression);
e->expr=sgrep_strdup(arg);
e->type=E_FILE;
e->next=last_expression;
last_expression=e;
}
break;
case 'F': {
char *arg;
if (num_file_list_files==MAX_FILE_LIST_FILES) {
sgrep_error(sgrep,
"too many file list files (more than %d -F options given)\n",
MAX_FILE_LIST_FILES);
return SGREP_ERROR;
}
arg=get_arg(sgrep,&argv,&i,&j);
if (!arg) return SGREP_ERROR;
file_list_files[num_file_list_files++]=arg;
break;
}
case 'g': {
char *arg;
arg=get_arg(sgrep,&argv,&i,&j);
if (!arg) return SGREP_ERROR;
if (set_scanner_option(sgrep,arg)==SGREP_ERROR) {
exit(2);
}
break;
}
case 'e': {
char *arg;
struct Expression *e;
arg=get_arg(sgrep,&argv,&i,&j);
if (!arg) return SGREP_ERROR;
e=sgrep_new(struct Expression);
e->expr=sgrep_strdup(arg);
e->type=E_TEXT;
e->next=last_expression;
last_expression=e;
break;
}
case 'p':
preprocessor=get_arg(sgrep,&argv,&i,&j);
if (!preprocessor) return SGREP_ERROR;
break;
case 'n':
read_sgreprc=0;
break;
case 'O': {
char *arg;
arg=get_arg(sgrep,&argv,&i,&j);
if (!arg) return SGREP_ERROR;
read_style_file(arg);
break;
}
case 'P':
show_expr=1;
break;
case 'D':
sgrep->progress_output=1;
break;
case 'S':
sgrep->stream_mode=1;
break;
case 'R':
sgrep->recurse_dirs=1;
fprintf(stderr,"WARNING -R not working (yet)\n");
break;
case 'q':
no_output=1;
break;
case 'x':
sgrep->index_file=get_arg(sgrep,&argv,&i,&j);
if (!sgrep->index_file) return SGREP_ERROR;
if (sgrep->index_reader) {
fprintf(stderr,"-x option used twice. Multiple indexes at once is not implemented.\n");
exit(2);
}
sgrep->index_reader=new_index_reader(sgrep,sgrep->index_file);
if (sgrep->index_reader==NULL) {
fprintf(stderr,"Index file unusable. Bailing out.\n");
exit(2);
}
sgrep->stream_mode=1;
break;
case 'w':
sgrep->word_chars=get_arg(sgrep,&argv,&i,&j);
if (!sgrep->word_chars) return SGREP_ERROR;
break;
default:
fprintf(stderr,"Illegal option -%c\n",(*argv)[j]);
return -1;
break;
}
if ((*argv)[++j]==0)
{
argv++;
i++;
j=1;
}
}
return i;
}
/*
* Shows the statistics ( from stats struct )
*/
void show_stats()
{
fprintf(stderr,
"Scanned %d files, having total of %dK size finding %d phrases.\n",
stats.scanned_files,
stats.scanned_bytes/1024,
stats.phrases);
fprintf(stderr,"Operator tree size was %d, optimized %d\n",
stats.parse_tree_size,
stats.parse_tree_size-stats.optimized_nodes);
fprintf(stderr,"Output list size was %d regions.\n",stats.output);
fprintf(stderr,
"Operations:\n%15s:%-4d%6s:%-4d%5s:%-4d%5s:%-4d%11s:%-4d%3s:%-4d\n",
"containing",stats.containing,
"in",stats.in,
"order",stats.order,
"or",stats.or_oper,
"extracting",stats.extracting,
"quote",stats.quote);
fprintf(stderr,"%15s:%-4d%6s:%-4d%5s:%-4d%5s:%-4d%11s:%-4d%4s:%-4d\n",
"not containing",stats.not_containing,
"not in",stats.not_in,
"inner",stats.inner,
"outer",stats.outer,
"concat",stats.concat,
"join",stats.join);
fprintf(stderr,"%15s:%-4d%6s:%-4d\n",
"equal",stats.equal,
"not equal",stats.not_equal);
fprintf(stderr,"%15s:%-4d%6s:%-4d\n",
"parenting",stats.parenting,
"childrening",stats.childrening);
fprintf(stderr," Total %d operations evaluated.\n",stats.operators_evaluated);
#if MEMORY_DEBUG
fprintf(stderr,"Memory:\n %dK peak memory usage, %d realloc operations\n",
stats.peak_memory_usage/1024,stats.reallocs);
#endif
fprintf(stderr," %d gc lists created", stats.region_lists);
fprintf(stderr," %d gc blocks used, %d gc blocks allocated.\n",
stats.gc_nodes,stats.gc_nodes_allocated);
fprintf(stderr," Longest list size was %d regions.\n",
stats.longest_list);
fprintf(stderr,
"Things done:\n %d %s\n %d %s, %d %s, %d %s\n",
stats.scans,"gc lists scanned",
stats.sorts_by_start,"sorts by start point",
stats.sorts_by_end,"sorts by end point"
,stats.remove_duplicates,"remove duplicates"
);
#ifdef OPTIMIZE_SORTS
fprintf(stderr," %d sorts optimized\n",stats.sorts_optimized);
#endif
if (stats.optimized_phrases)
{
fprintf(stderr," %d same phrases\n",stats.optimized_phrases);
}
}
#if HAVE_TIMES
/*
* Calculates the difference between two time
* and returns it
*/
float calc_time(clock_t b,clock_t e)
{
static long clktck=0;
if (clktck==0) clktck=sysconf(_SC_CLK_TCK);
if (clktck<0) return 0;
return ((float)(e-b)/(float)clktck);
}
#endif
#if HAVE_TIMES
/*
* Prints a nice looking line of time information with label
*/
void print_time(char *label,struct tms *b,struct tms *e)
{
float sys,usr;
usr=calc_time(b->tms_utime,e->tms_utime);
sys=calc_time(b->tms_stime,e->tms_stime);
fprintf(stderr," %-18s%6.2fs %6.2fs %6.2fs\n",label,usr,sys,usr+sys);;
}