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/*
This file is part of tl-parser
tl-parser is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
tl-parser is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this tl-parser. If not, see <http://www.gnu.org/licenses/>.
Copyright Vitaly Valtman 2014
It is derivative work of VK/KittenPHP-DB-Engine (https://github.com/vk-com/kphp-kdb/)
Copyright 2012-2013 Vkontakte Ltd
2012-2013 Vitaliy Valtman
*/
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include "tl-parser.h"
#ifndef _WIN32
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>
#ifdef HAVE_EXECINFO_H
#include <execinfo.h>
#endif
#include <stdarg.h>
int verbosity;
int output_expressions;
void usage (void) {
printf ("usage: tl-parser [-v] [-h] <TL-schema-file>\n"
"\tTL compiler\n"
"\t-v\toutput statistical and debug information into stderr\n"
"\t-E\twhenever is possible output to stdout expressions\n"
"\t-e <file>\texport serialized schema to file\n"
);
exit (2);
}
int vkext_write (const char *filename) {
#ifdef _WIN32
int f = _open(filename, _O_CREAT | _O_WRONLY | _O_TRUNC | _O_BINARY, 0640);
#else
int f = open (filename, O_CREAT | O_WRONLY | O_TRUNC, 0640);
#endif
assert (f >= 0);
write_types (f);
close (f);
return 0;
}
void logprintf (const char *format, ...) __attribute__ ((format (printf, 1, 2)));
void logprintf (const char *format __attribute__ ((unused)), ...) {
va_list ap;
va_start (ap, format);
vfprintf (stderr, format, ap);
va_end (ap);
}
void hexdump (int *in_ptr, int *in_end) {
int *ptr = in_ptr;
while (ptr < in_end) { printf (" %08x", *(ptr ++)); }
printf ("\n");
}
#ifdef HAVE_EXECINFO_H
void print_backtrace (void) {
void *buffer[255];
const int calls = backtrace (buffer, sizeof (buffer) / sizeof (void *));
backtrace_symbols_fd (buffer, calls, 1);
}
#else
void print_backtrace (void) {
if (write (1, "No libexec. Backtrace disabled\n", 32) < 0) {
// Sad thing
}
}
#endif
void sig_segv_handler (int signum __attribute__ ((unused))) {
if (write (1, "SIGSEGV received\n", 18) < 0) {
// Sad thing
}
print_backtrace ();
exit (EXIT_FAILURE);
}
void sig_abrt_handler (int signum __attribute__ ((unused))) {
if (write (1, "SIGABRT received\n", 18) < 0) {
// Sad thing
}
print_backtrace ();
exit (EXIT_FAILURE);
}
int main (int argc, char **argv) {
signal (SIGSEGV, sig_segv_handler);
signal (SIGABRT, sig_abrt_handler);
int i;
char *vkext_file = 0;
while ((i = getopt (argc, argv, "Ehve:w:")) != -1) {
switch (i) {
case 'E':
output_expressions++;
break;
case 'h':
usage ();
return 2;
case 'e':
vkext_file = optarg;
break;
case 'v':
verbosity++;
break;
}
}
if (argc != optind + 1) {
usage ();
}
struct parse *P = tl_init_parse_file (argv[optind]);
if (!P) {
return 0;
}
struct tree *T;
if (!(T = tl_parse_lex (P))) {
fprintf (stderr, "Error in parse:\n");
tl_print_parse_error ();
return 0;
} else {
if (verbosity) {
fprintf (stderr, "Parse ok\n");
}
if (!tl_parse (T)) {
if (verbosity) {
fprintf (stderr, "Fail\n");
}
return 1;
} else {
if (verbosity) {
fprintf (stderr, "Ok\n");
}
}
}
if (vkext_file) {
vkext_write (vkext_file);
}
return 0;
}
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