feat(frontends/lean): add SHOW and SLEEP debugging support commands, fixes worker interrupted bug, and LEAN_SERVER_DIAGNOSTIC compilation mode

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2014-08-29 17:46:17 -07:00
parent c320c6e05a
commit cb27407fcb
2 changed files with 47 additions and 2 deletions

View file

@ -7,10 +7,19 @@ Author: Leonardo de Moura
#include <string>
#include <functional>
#include "util/sstream.h"
#include "util/exception.h"
#include "util/sexpr/option_declarations.h"
#include "frontends/lean/server.h"
#include "frontends/lean/parser.h"
// #define LEAN_SERVER_DIAGNOSTIC
#if defined(LEAN_SERVER_DIAGNOSTIC)
#define DIAG(CODE) CODE
#else
#define DIAG(CODE)
#endif
namespace lean {
server::file::file(std::istream & in, std::string const & fname):m_fname(fname) {
for (std::string line; std::getline(in, line);) {
@ -59,6 +68,12 @@ void server::file::remove_line(unsigned linenum) {
m_lines.pop_back();
}
void server::file::show(std::ostream & out) {
lock_guard<mutex> lk(m_lines_mutex);
for (unsigned i = 0; i < m_lines.size(); i++)
out << m_lines[i] << "\n";
}
/**
\brief Return index i <= m_snapshots.size() s.t.
* forall j < i, m_snapshots[j].m_line < line
@ -119,8 +134,10 @@ server::worker::worker(environment const & env, io_state const & ios, definition
}
// extract block of code and snapshot from todo_file
reset_interrupt();
bool worker_interrupted = false;
if (m_terminate)
break;
DIAG(std::cerr << "processing '" << todo_file->get_fname() << "'\n";)
std::string block;
unsigned num_lines;
snapshot s;
@ -139,8 +156,13 @@ server::worker::worker(environment const & env, io_state const & ios, definition
// parse block of code with respect to snapshot
try {
std::istringstream strm(block);
#if defined(LEAN_SERVER_DIAGNOSTIC)
std::shared_ptr<output_channel> out1(new stderr_channel());
std::shared_ptr<output_channel> out2(new stderr_channel());
#else
std::shared_ptr<output_channel> out1(new string_output_channel());
std::shared_ptr<output_channel> out2(new string_output_channel());
#endif
io_state tmp_ios(_ios, out1, out2);
tmp_ios.set_options(join(s.m_options, _ios.get_options()));
bool use_exceptions = false;
@ -149,8 +171,13 @@ server::worker::worker(environment const & env, io_state const & ios, definition
s.m_lds, s.m_eds, s.m_line, &todo_file->m_snapshots, &todo_file->m_info);
p.set_cache(&m_cache);
p();
} catch (exception&) {}
if (!m_terminate) {
} catch (interrupted &) {
worker_interrupted = true;
} catch (exception & ex) {
DIAG(std::cerr << "worker exception: " << ex.what() << "\n";)
}
if (!m_terminate && !worker_interrupted) {
DIAG(std::cerr << "finished '" << todo_file->get_fname() << "'\n";)
unique_lock<mutex> lk(m_todo_mutex);
if (m_todo_file == todo_file && m_last_file == todo_file && m_todo_linenum == todo_linenum) {
m_todo_linenum = num_lines + 1;
@ -216,6 +243,8 @@ static std::string g_wait("WAIT");
static std::string g_clear_cache("CLEAR_CACHE");
static std::string g_echo("ECHO");
static std::string g_options("OPTIONS");
static std::string g_show("SHOW");
static std::string g_sleep("SLEEP");
static bool is_command(std::string const & cmd, std::string const & line) {
return line.compare(0, cmd.size(), cmd) == 0;
@ -358,6 +387,13 @@ void server::show_options() {
m_out << "-- ENDOPTIONS" << std::endl;
}
void server::show() {
check_file();
m_out << "-- BEGINSHOW" << std::endl;
m_file->show(m_out);
m_out << "-- ENDSHOW" << std::endl;
}
bool server::operator()(std::istream & in) {
for (std::string line; std::getline(in, line);) {
try {
@ -398,6 +434,12 @@ bool server::operator()(std::istream & in) {
show_options();
} else if (is_command(g_wait, line)) {
m_worker.wait();
} else if (is_command(g_show, line)) {
show();
} else if (is_command(g_sleep, line)) {
unsigned ms = get_linenum(line, g_sleep);
chrono::milliseconds d(ms);
this_thread::sleep_for(d);
} else {
throw exception(sstream() << "unexpected command line: " << line);
}

View file

@ -35,6 +35,8 @@ class server {
void replace_line(unsigned linenum, std::string const & new_line);
void insert_line(unsigned linenum, std::string const & new_line);
void remove_line(unsigned linenum);
void show(std::ostream & out);
std::string const & get_fname() const { return m_fname; }
info_manager const & infom() const { return m_info; }
};
typedef std::shared_ptr<file> file_ptr;
@ -84,6 +86,7 @@ class server {
void read_line(std::istream & in, std::string & line);
void interrupt_worker();
void show_options();
void show();
unsigned get_linenum(std::string const & line, std::string const & cmd);
public: