forked from eventmachine/eventmachine
/
rubymain.cpp
1247 lines (1004 loc) · 32.9 KB
/
rubymain.cpp
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/*****************************************************************************
$Id$
File: rubymain.cpp
Date: 06Apr06
Copyright (C) 2006-07 by Francis Cianfrocca. All Rights Reserved.
Gmail: blackhedd
This program is free software; you can redistribute it and/or modify
it under the terms of either: 1) 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; or 2) Ruby's License.
See the file COPYING for complete licensing information.
*****************************************************************************/
#include "project.h"
#include "eventmachine.h"
#include <ruby.h>
#ifndef RFLOAT_VALUE
#define RFLOAT_VALUE(arg) RFLOAT(arg)->value
#endif
/*******
Statics
*******/
static VALUE EmModule;
static VALUE EmConnection;
static VALUE EmConnsHash;
static VALUE EmTimersHash;
static VALUE EM_eConnectionError;
static VALUE EM_eUnknownTimerFired;
static VALUE EM_eConnectionNotBound;
static VALUE EM_eUnsupported;
static VALUE Intern_at_signature;
static VALUE Intern_at_timers;
static VALUE Intern_at_conns;
static VALUE Intern_at_error_handler;
static VALUE Intern_event_callback;
static VALUE Intern_run_deferred_callbacks;
static VALUE Intern_delete;
static VALUE Intern_call;
static VALUE Intern_receive_data;
static VALUE Intern_ssl_handshake_completed;
static VALUE Intern_ssl_verify_peer;
static VALUE Intern_notify_readable;
static VALUE Intern_notify_writable;
static VALUE Intern_proxy_target_unbound;
static VALUE Intern_proxy_completed;
static VALUE Intern_connection_completed;
static VALUE rb_cProcStatus;
struct em_event {
unsigned long signature;
int event;
const char *data_str;
unsigned long data_num;
};
static inline VALUE ensure_conn(const unsigned long signature)
{
VALUE conn = rb_hash_aref (EmConnsHash, ULONG2NUM (signature));
if (conn == Qnil)
rb_raise (EM_eConnectionNotBound, "unknown connection: %lu", signature);
return conn;
}
/****************
t_event_callback
****************/
static inline void event_callback (struct em_event* e)
{
const unsigned long signature = e->signature;
int event = e->event;
const char *data_str = e->data_str;
const unsigned long data_num = e->data_num;
switch (event) {
case EM_CONNECTION_READ:
{
VALUE conn = rb_hash_aref (EmConnsHash, ULONG2NUM (signature));
if (conn == Qnil)
rb_raise (EM_eConnectionNotBound, "received %lu bytes of data for unknown signature: %lu", data_num, signature);
rb_funcall (conn, Intern_receive_data, 1, rb_str_new (data_str, data_num));
return;
}
case EM_CONNECTION_ACCEPTED:
{
rb_funcall (EmModule, Intern_event_callback, 3, ULONG2NUM(signature), INT2FIX(event), ULONG2NUM(data_num));
return;
}
case EM_CONNECTION_UNBOUND:
{
rb_funcall (EmModule, Intern_event_callback, 3, ULONG2NUM(signature), INT2FIX(event), ULONG2NUM(data_num));
return;
}
case EM_CONNECTION_COMPLETED:
{
VALUE conn = ensure_conn(signature);
rb_funcall (conn, Intern_connection_completed, 0);
return;
}
case EM_CONNECTION_NOTIFY_READABLE:
{
VALUE conn = ensure_conn(signature);
rb_funcall (conn, Intern_notify_readable, 0);
return;
}
case EM_CONNECTION_NOTIFY_WRITABLE:
{
VALUE conn = ensure_conn(signature);
rb_funcall (conn, Intern_notify_writable, 0);
return;
}
case EM_LOOPBREAK_SIGNAL:
{
rb_funcall (EmModule, Intern_run_deferred_callbacks, 0);
return;
}
case EM_TIMER_FIRED:
{
VALUE timer = rb_funcall (EmTimersHash, Intern_delete, 1, ULONG2NUM (data_num));
if (timer == Qnil) {
rb_raise (EM_eUnknownTimerFired, "no such timer: %lu", data_num);
} else if (timer == Qfalse) {
/* Timer Canceled */
} else {
rb_funcall (timer, Intern_call, 0);
}
return;
}
#ifdef WITH_SSL
case EM_SSL_HANDSHAKE_COMPLETED:
{
VALUE conn = ensure_conn(signature);
rb_funcall (conn, Intern_ssl_handshake_completed, 0);
return;
}
case EM_SSL_VERIFY:
{
VALUE conn = ensure_conn(signature);
VALUE should_accept = rb_funcall (conn, Intern_ssl_verify_peer, 1, rb_str_new(data_str, data_num));
if (RTEST(should_accept))
evma_accept_ssl_peer (signature);
return;
}
#endif
case EM_PROXY_TARGET_UNBOUND:
{
VALUE conn = ensure_conn(signature);
rb_funcall (conn, Intern_proxy_target_unbound, 0);
return;
}
case EM_PROXY_COMPLETED:
{
VALUE conn = ensure_conn(signature);
rb_funcall (conn, Intern_proxy_completed, 0);
return;
}
}
}
/*******************
event_error_handler
*******************/
static void event_error_handler(VALUE unused, VALUE err)
{
VALUE error_handler = rb_ivar_get(EmModule, Intern_at_error_handler);
rb_funcall (error_handler, Intern_call, 1, err);
}
/**********************
event_callback_wrapper
**********************/
static void event_callback_wrapper (const unsigned long signature, int event, const char *data_str, const unsigned long data_num)
{
struct em_event e;
e.signature = signature;
e.event = event;
e.data_str = data_str;
e.data_num = data_num;
if (!rb_ivar_defined(EmModule, Intern_at_error_handler))
event_callback(&e);
else
rb_rescue((VALUE (*)(ANYARGS))event_callback, (VALUE)&e, (VALUE (*)(ANYARGS))event_error_handler, Qnil);
}
/**************************
t_initialize_event_machine
**************************/
static VALUE t_initialize_event_machine (VALUE self)
{
EmConnsHash = rb_ivar_get (EmModule, Intern_at_conns);
EmTimersHash = rb_ivar_get (EmModule, Intern_at_timers);
assert(EmConnsHash != Qnil);
assert(EmTimersHash != Qnil);
evma_initialize_library ((EMCallback)event_callback_wrapper);
return Qnil;
}
/*****************************
t_run_machine_without_threads
*****************************/
static VALUE t_run_machine_without_threads (VALUE self)
{
evma_run_machine();
return Qnil;
}
/*******************
t_add_oneshot_timer
*******************/
static VALUE t_add_oneshot_timer (VALUE self, VALUE interval)
{
const unsigned long f = evma_install_oneshot_timer (FIX2INT (interval));
if (!f)
rb_raise (rb_eRuntimeError, "ran out of timers; use #set_max_timers to increase limit");
return ULONG2NUM (f);
}
/**************
t_start_server
**************/
static VALUE t_start_server (VALUE self, VALUE server, VALUE port)
{
const unsigned long f = evma_create_tcp_server (StringValuePtr(server), FIX2INT(port));
if (!f)
rb_raise (rb_eRuntimeError, "no acceptor (port is in use or requires root privileges)");
return ULONG2NUM (f);
}
/*************
t_stop_server
*************/
static VALUE t_stop_server (VALUE self, VALUE signature)
{
evma_stop_tcp_server (NUM2ULONG (signature));
return Qnil;
}
/*******************
t_start_unix_server
*******************/
static VALUE t_start_unix_server (VALUE self, VALUE filename)
{
const unsigned long f = evma_create_unix_domain_server (StringValuePtr(filename));
if (!f)
rb_raise (rb_eRuntimeError, "no unix-domain acceptor");
return ULONG2NUM (f);
}
/***********
t_send_data
***********/
static VALUE t_send_data (VALUE self, VALUE signature, VALUE data, VALUE data_length)
{
int b = evma_send_data_to_connection (NUM2ULONG (signature), StringValuePtr (data), FIX2INT (data_length));
return INT2NUM (b);
}
/***********
t_start_tls
***********/
static VALUE t_start_tls (VALUE self, VALUE signature)
{
evma_start_tls (NUM2ULONG (signature));
return Qnil;
}
/***************
t_set_tls_parms
***************/
static VALUE t_set_tls_parms (VALUE self, VALUE signature, VALUE privkeyfile, VALUE certchainfile, VALUE verify_peer)
{
/* set_tls_parms takes a series of positional arguments for specifying such things
* as private keys and certificate chains.
* It's expected that the parameter list will grow as we add more supported features.
* ALL of these parameters are optional, and can be specified as empty or NULL strings.
*/
evma_set_tls_parms (NUM2ULONG (signature), StringValuePtr (privkeyfile), StringValuePtr (certchainfile), (verify_peer == Qtrue ? 1 : 0));
return Qnil;
}
/***************
t_get_peer_cert
***************/
static VALUE t_get_peer_cert (VALUE self, VALUE signature)
{
VALUE ret = Qnil;
#ifdef WITH_SSL
X509 *cert = NULL;
BUF_MEM *buf;
BIO *out;
cert = evma_get_peer_cert (NUM2ULONG (signature));
if (cert != NULL) {
out = BIO_new(BIO_s_mem());
PEM_write_bio_X509(out, cert);
BIO_get_mem_ptr(out, &buf);
ret = rb_str_new(buf->data, buf->length);
X509_free(cert);
BUF_MEM_free(buf);
}
#endif
return ret;
}
/**************
t_get_peername
**************/
static VALUE t_get_peername (VALUE self, VALUE signature)
{
char buf[1024];
socklen_t len = sizeof buf;
if (evma_get_peername (NUM2ULONG (signature), (struct sockaddr*)buf, &len)) {
return rb_str_new (buf, len);
}
return Qnil;
}
/**************
t_get_sockname
**************/
static VALUE t_get_sockname (VALUE self, VALUE signature)
{
char buf[1024];
socklen_t len = sizeof buf;
if (evma_get_sockname (NUM2ULONG (signature), (struct sockaddr*)buf, &len)) {
return rb_str_new (buf, len);
}
return Qnil;
}
/********************
t_get_subprocess_pid
********************/
static VALUE t_get_subprocess_pid (VALUE self, VALUE signature)
{
pid_t pid;
if (evma_get_subprocess_pid (NUM2ULONG (signature), &pid)) {
return INT2NUM (pid);
}
return Qnil;
}
/***********************
t_get_subprocess_status
***********************/
static VALUE t_get_subprocess_status (VALUE self, VALUE signature)
{
VALUE proc_status = Qnil;
int status;
pid_t pid;
if (evma_get_subprocess_status (NUM2ULONG (signature), &status)) {
if (evma_get_subprocess_pid (NUM2ULONG (signature), &pid)) {
proc_status = rb_obj_alloc(rb_cProcStatus);
rb_iv_set(proc_status, "status", INT2FIX(status));
rb_iv_set(proc_status, "pid", INT2FIX(pid));
}
}
return proc_status;
}
/**********************
t_get_connection_count
**********************/
static VALUE t_get_connection_count (VALUE self)
{
return INT2NUM(evma_get_connection_count());
}
/*****************************
t_get_comm_inactivity_timeout
*****************************/
static VALUE t_get_comm_inactivity_timeout (VALUE self, VALUE signature)
{
return rb_float_new(evma_get_comm_inactivity_timeout(NUM2ULONG (signature)));
}
/*****************************
t_set_comm_inactivity_timeout
*****************************/
static VALUE t_set_comm_inactivity_timeout (VALUE self, VALUE signature, VALUE timeout)
{
float ti = RFLOAT_VALUE(timeout);
if (evma_set_comm_inactivity_timeout(NUM2ULONG(signature), ti)) {
return Qtrue;
}
return Qfalse;
}
/*****************************
t_get_pending_connect_timeout
*****************************/
static VALUE t_get_pending_connect_timeout (VALUE self, VALUE signature)
{
return rb_float_new(evma_get_pending_connect_timeout(NUM2ULONG (signature)));
}
/*****************************
t_set_pending_connect_timeout
*****************************/
static VALUE t_set_pending_connect_timeout (VALUE self, VALUE signature, VALUE timeout)
{
float ti = RFLOAT_VALUE(timeout);
if (evma_set_pending_connect_timeout(NUM2ULONG(signature), ti)) {
return Qtrue;
}
return Qfalse;
}
/***************
t_send_datagram
***************/
static VALUE t_send_datagram (VALUE self, VALUE signature, VALUE data, VALUE data_length, VALUE address, VALUE port)
{
int b = evma_send_datagram (NUM2ULONG (signature), StringValuePtr (data), FIX2INT (data_length), StringValuePtr(address), FIX2INT(port));
return INT2NUM (b);
}
/******************
t_close_connection
******************/
static VALUE t_close_connection (VALUE self, VALUE signature, VALUE after_writing)
{
evma_close_connection (NUM2ULONG (signature), ((after_writing == Qtrue) ? 1 : 0));
return Qnil;
}
/********************************
t_report_connection_error_status
********************************/
static VALUE t_report_connection_error_status (VALUE self, VALUE signature)
{
int b = evma_report_connection_error_status (NUM2ULONG (signature));
return INT2NUM (b);
}
/****************
t_connect_server
****************/
static VALUE t_connect_server (VALUE self, VALUE server, VALUE port)
{
// Avoid FIX2INT in this case, because it doesn't deal with type errors properly.
// Specifically, if the value of port comes in as a string rather than an integer,
// NUM2INT will throw a type error, but FIX2INT will generate garbage.
try {
const unsigned long f = evma_connect_to_server (NULL, 0, StringValuePtr(server), NUM2INT(port));
if (!f)
rb_raise (EM_eConnectionError, "no connection");
return ULONG2NUM (f);
} catch (std::runtime_error e) {
rb_raise (EM_eConnectionError, e.what());
}
return Qnil;
}
/*********************
t_bind_connect_server
*********************/
static VALUE t_bind_connect_server (VALUE self, VALUE bind_addr, VALUE bind_port, VALUE server, VALUE port)
{
// Avoid FIX2INT in this case, because it doesn't deal with type errors properly.
// Specifically, if the value of port comes in as a string rather than an integer,
// NUM2INT will throw a type error, but FIX2INT will generate garbage.
try {
const unsigned long f = evma_connect_to_server (StringValuePtr(bind_addr), NUM2INT(bind_port), StringValuePtr(server), NUM2INT(port));
if (!f)
rb_raise (EM_eConnectionError, "no connection");
return ULONG2NUM (f);
} catch (std::runtime_error e) {
rb_raise (EM_eConnectionError, e.what());
}
return Qnil;
}
/*********************
t_connect_unix_server
*********************/
static VALUE t_connect_unix_server (VALUE self, VALUE serversocket)
{
const unsigned long f = evma_connect_to_unix_server (StringValuePtr(serversocket));
if (!f)
rb_raise (rb_eRuntimeError, "no connection");
return ULONG2NUM (f);
}
/***********
t_attach_fd
***********/
static VALUE t_attach_fd (VALUE self, VALUE file_descriptor, VALUE watch_mode)
{
const unsigned long f = evma_attach_fd (NUM2INT(file_descriptor), watch_mode == Qtrue);
if (!f)
rb_raise (rb_eRuntimeError, "no connection");
return ULONG2NUM (f);
}
/***********
t_detach_fd
***********/
static VALUE t_detach_fd (VALUE self, VALUE signature)
{
return INT2NUM(evma_detach_fd (NUM2ULONG (signature)));
}
/**************
t_get_sock_opt
**************/
static VALUE t_get_sock_opt (VALUE self, VALUE signature, VALUE lev, VALUE optname)
{
int fd = evma_get_file_descriptor (NUM2ULONG (signature));
int level = NUM2INT(lev), option = NUM2INT(optname);
socklen_t len = 128;
char buf[128];
if (getsockopt(fd, level, option, buf, &len) < 0)
rb_sys_fail("getsockopt");
return rb_str_new(buf, len);
}
/**************
t_set_sock_opt
**************/
static VALUE t_set_sock_opt (VALUE self, VALUE signature, VALUE lev, VALUE optname, VALUE optval)
{
int fd = evma_get_file_descriptor (NUM2ULONG (signature));
int level = NUM2INT(lev), option = NUM2INT(optname);
int i;
void *v;
socklen_t len;
switch (TYPE(optval)) {
case T_FIXNUM:
i = FIX2INT(optval);
goto numval;
case T_FALSE:
i = 0;
goto numval;
case T_TRUE:
i = 1;
numval:
v = (void*)&i; len = sizeof(i);
break;
default:
StringValue(optval);
v = RSTRING_PTR(optval);
len = RSTRING_LENINT(optval);
break;
}
if (setsockopt(fd, level, option, v, len) < 0)
rb_sys_fail("setsockopt");
return INT2FIX(0);
}
/********************
t_is_notify_readable
********************/
static VALUE t_is_notify_readable (VALUE self, VALUE signature)
{
return evma_is_notify_readable(NUM2ULONG (signature)) ? Qtrue : Qfalse;
}
/*********************
t_set_notify_readable
*********************/
static VALUE t_set_notify_readable (VALUE self, VALUE signature, VALUE mode)
{
evma_set_notify_readable(NUM2ULONG (signature), mode == Qtrue);
return Qnil;
}
/********************
t_is_notify_readable
********************/
static VALUE t_is_notify_writable (VALUE self, VALUE signature)
{
return evma_is_notify_writable(NUM2ULONG (signature)) ? Qtrue : Qfalse;
}
/*********************
t_set_notify_writable
*********************/
static VALUE t_set_notify_writable (VALUE self, VALUE signature, VALUE mode)
{
evma_set_notify_writable(NUM2ULONG (signature), mode == Qtrue);
return Qnil;
}
/*******
t_pause
*******/
static VALUE t_pause (VALUE self, VALUE signature)
{
return evma_pause(NUM2ULONG (signature)) ? Qtrue : Qfalse;
}
/********
t_resume
********/
static VALUE t_resume (VALUE self, VALUE signature)
{
return evma_resume(NUM2ULONG (signature)) ? Qtrue : Qfalse;
}
/**********
t_paused_p
**********/
static VALUE t_paused_p (VALUE self, VALUE signature)
{
return evma_is_paused(NUM2ULONG (signature)) ? Qtrue : Qfalse;
}
/*****************
t_open_udp_socket
*****************/
static VALUE t_open_udp_socket (VALUE self, VALUE server, VALUE port)
{
const unsigned long f = evma_open_datagram_socket (StringValuePtr(server), FIX2INT(port));
if (!f)
rb_raise (rb_eRuntimeError, "no datagram socket");
return ULONG2NUM (f);
}
/*****************
t_release_machine
*****************/
static VALUE t_release_machine (VALUE self)
{
evma_release_library();
return Qnil;
}
/******
t_stop
******/
static VALUE t_stop (VALUE self)
{
evma_stop_machine();
return Qnil;
}
/******************
t_signal_loopbreak
******************/
static VALUE t_signal_loopbreak (VALUE self)
{
evma_signal_loopbreak();
return Qnil;
}
/**************
t_library_type
**************/
static VALUE t_library_type (VALUE self)
{
return rb_eval_string (":extension");
}
/*******************
t_set_timer_quantum
*******************/
static VALUE t_set_timer_quantum (VALUE self, VALUE interval)
{
evma_set_timer_quantum (FIX2INT (interval));
return Qnil;
}
/********************
t_get_max_timer_count
********************/
static VALUE t_get_max_timer_count (VALUE self)
{
return INT2FIX (evma_get_max_timer_count());
}
/********************
t_set_max_timer_count
********************/
static VALUE t_set_max_timer_count (VALUE self, VALUE ct)
{
evma_set_max_timer_count (FIX2INT (ct));
return Qnil;
}
/***************
t_setuid_string
***************/
static VALUE t_setuid_string (VALUE self, VALUE username)
{
evma_setuid_string (StringValuePtr (username));
return Qnil;
}
/**************
t_invoke_popen
**************/
static VALUE t_invoke_popen (VALUE self, VALUE cmd)
{
// 1.8.7+
#ifdef RARRAY_LEN
int len = RARRAY_LEN(cmd);
#else
int len = RARRAY (cmd)->len;
#endif
if (len >= 2048)
rb_raise (rb_eRuntimeError, "too many arguments to popen");
char *strings [2048];
for (int i=0; i < len; i++) {
VALUE ix = INT2FIX (i);
VALUE s = rb_ary_aref (1, &ix, cmd);
strings[i] = StringValuePtr (s);
}
strings[len] = NULL;
const unsigned long f = evma_popen (strings);
if (!f) {
char *err = strerror (errno);
char buf[100];
memset (buf, 0, sizeof(buf));
snprintf (buf, sizeof(buf)-1, "no popen: %s", (err?err:"???"));
rb_raise (rb_eRuntimeError, "%s", buf);
}
return ULONG2NUM (f);
}
/***************
t_read_keyboard
***************/
static VALUE t_read_keyboard (VALUE self)
{
const unsigned long f = evma_open_keyboard();
if (!f)
rb_raise (rb_eRuntimeError, "no keyboard reader");
return ULONG2NUM (f);
}
/****************
t_watch_filename
****************/
static VALUE t_watch_filename (VALUE self, VALUE fname)
{
try {
return ULONG2NUM(evma_watch_filename(StringValuePtr(fname)));
} catch (std::runtime_error e) {
rb_raise (EM_eUnsupported, e.what());
}
return Qnil;
}
/******************
t_unwatch_filename
******************/
static VALUE t_unwatch_filename (VALUE self, VALUE sig)
{
evma_unwatch_filename(NUM2ULONG (sig));
return Qnil;
}
/***********
t_watch_pid
***********/
static VALUE t_watch_pid (VALUE self, VALUE pid)
{
try {
return ULONG2NUM(evma_watch_pid(NUM2INT(pid)));
} catch (std::runtime_error e) {
rb_raise (EM_eUnsupported, e.what());
}
return Qnil;
}
/*************
t_unwatch_pid
*************/
static VALUE t_unwatch_pid (VALUE self, VALUE sig)
{
evma_unwatch_pid(NUM2ULONG (sig));
return Qnil;
}
/**********
t__epoll_p
**********/
static VALUE t__epoll_p (VALUE self)
{
#ifdef HAVE_EPOLL
return Qtrue;
#else
return Qfalse;
#endif
}
/********
t__epoll
********/
static VALUE t__epoll (VALUE self)
{
evma_set_epoll (1);
return Qtrue;
}
/***********
t__epoll_set
***********/
static VALUE t__epoll_set (VALUE self, VALUE val)
{
if (t__epoll_p(self) == Qfalse)
rb_raise (EM_eUnsupported, "epoll is not supported on this platform");
evma_set_epoll (val == Qtrue ? 1 : 0);
return val;
}
/***********
t__kqueue_p
***********/
static VALUE t__kqueue_p (VALUE self)
{
#ifdef HAVE_KQUEUE
return Qtrue;
#else
return Qfalse;
#endif
}
/*********
t__kqueue
*********/
static VALUE t__kqueue (VALUE self)
{
evma_set_kqueue (1);
return Qtrue;
}
/*************
t__kqueue_set
*************/
static VALUE t__kqueue_set (VALUE self, VALUE val)
{
if (t__kqueue_p(self) == Qfalse)
rb_raise (EM_eUnsupported, "kqueue is not supported on this platform");
evma_set_kqueue (val == Qtrue ? 1 : 0);
return val;
}
/********
t__ssl_p
********/
static VALUE t__ssl_p (VALUE self)
{
#ifdef WITH_SSL
return Qtrue;
#else
return Qfalse;
#endif
}
/****************
t_send_file_data
****************/
static VALUE t_send_file_data (VALUE self, VALUE signature, VALUE filename)
{
/* The current implementation of evma_send_file_data_to_connection enforces a strict
* upper limit on the file size it will transmit (currently 32K). The function returns
* zero on success, -1 if the requested file exceeds its size limit, and a positive
* number for other errors.
* TODO: Positive return values are actually errno's, which is probably the wrong way to
* do this. For one thing it's ugly. For another, we can't be sure zero is never a real errno.
*/
int b = evma_send_file_data_to_connection (NUM2ULONG (signature), StringValuePtr(filename));
if (b == -1)
rb_raise(rb_eRuntimeError, "File too large. send_file_data() supports files under 32k.");
if (b > 0) {
char *err = strerror (b);
char buf[1024];
memset (buf, 0, sizeof(buf));
snprintf (buf, sizeof(buf)-1, ": %s %s", StringValuePtr(filename),(err?err:"???"));
rb_raise (rb_eIOError, "%s", buf);
}
return INT2NUM (0);