sourcemod/sourcepawn/vm/dll_exports.cpp
2015-03-07 10:50:35 -08:00

283 lines
6.5 KiB
C++

/**
* vim: set ts=4 sts=4 sw=4 tw=99 noet:
* =============================================================================
* SourceMod
* Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
* =============================================================================
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 3.0, as published by the
* Free Software Foundation.
*
* This program 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 program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, AlliedModders LLC gives you permission to link the
* code of this program (as well as its derivative works) to "Half-Life 2," the
* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
* by the Valve Corporation. You must obey the GNU General Public License in
* all respects for all other code used. Additionally, AlliedModders LLC grants
* this exception to all derivative works. AlliedModders LLC defines further
* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
* or <http://www.sourcemod.net/license.php>.
*
* Version: $Id$
*/
#include <sp_vm_api.h>
#include <stdlib.h>
#include <stdarg.h>
#include <am-utility.h> // Replace with am-cxx later.
#include "dll_exports.h"
#include "environment.h"
#include "stack-frames.h"
using namespace ke;
using namespace sp;
using namespace SourcePawn;
class SourcePawnFactory : public ISourcePawnFactory
{
public:
int ApiVersion() KE_OVERRIDE {
return SOURCEPAWN_API_VERSION;
}
ISourcePawnEnvironment *NewEnvironment() KE_OVERRIDE {
return Environment::New();
}
ISourcePawnEnvironment *CurrentEnvironment() KE_OVERRIDE {
return Environment::get();
}
} sFactory;
#ifdef SPSHELL
Environment *sEnv;
static void
DumpStack(IFrameIterator &iter)
{
int index = 0;
for (; !iter.Done(); iter.Next(), index++) {
const char *name = iter.FunctionName();
if (!name) {
fprintf(stdout, " [%d] <unknown>\n", index);
continue;
}
if (iter.IsScriptedFrame()) {
const char *file = iter.FilePath();
if (!file)
file = "<unknown>";
fprintf(stdout, " [%d] %s::%s, line %d\n", index, file, name, iter.LineNumber());
} else {
fprintf(stdout, " [%d] %s()\n", index, name);
}
}
}
class ShellDebugListener : public IDebugListener
{
public:
void ReportError(const IErrorReport &report, IFrameIterator &iter) KE_OVERRIDE {
fprintf(stdout, "Exception thrown: %s\n", report.Message());
DumpStack(iter);
}
void OnDebugSpew(const char *msg, ...) {
#if !defined(NDEBUG) && defined(DEBUG)
va_list ap;
va_start(ap, msg);
vfprintf(stderr, msg, ap);
va_end(ap);
#endif
}
};
static cell_t Print(IPluginContext *cx, const cell_t *params)
{
char *p;
cx->LocalToString(params[1], &p);
return printf("%s", p);
}
static cell_t PrintNum(IPluginContext *cx, const cell_t *params)
{
return printf("%d\n", params[1]);
}
static cell_t PrintNums(IPluginContext *cx, const cell_t *params)
{
for (size_t i = 1; i <= size_t(params[0]); i++) {
int err;
cell_t *addr;
if ((err = cx->LocalToPhysAddr(params[i], &addr)) != SP_ERROR_NONE)
return cx->ThrowNativeErrorEx(err, "Could not read argument");
fprintf(stdout, "%d", *addr);
if (i != size_t(params[0]))
fprintf(stdout, ", ");
}
fprintf(stdout, "\n");
return 1;
}
static cell_t DoNothing(IPluginContext *cx, const cell_t *params)
{
return 1;
}
static void BindNative(IPluginRuntime *rt, const char *name, SPVM_NATIVE_FUNC fn)
{
int err;
uint32_t index;
if ((err = rt->FindNativeByName(name, &index)) != SP_ERROR_NONE)
return;
rt->UpdateNativeBinding(index, fn, 0, nullptr);
}
static cell_t PrintFloat(IPluginContext *cx, const cell_t *params)
{
return printf("%f\n", sp_ctof(params[1]));
}
static cell_t DoExecute(IPluginContext *cx, const cell_t *params)
{
int32_t ok = 0;
for (size_t i = 0; i < size_t(params[2]); i++) {
if (IPluginFunction *fn = cx->GetFunctionById(params[1])) {
if (fn->Execute(nullptr) != SP_ERROR_NONE)
continue;
ok++;
}
}
return ok;
}
static cell_t DoInvoke(IPluginContext *cx, const cell_t *params)
{
for (size_t i = 0; i < size_t(params[2]); i++) {
if (IPluginFunction *fn = cx->GetFunctionById(params[1])) {
if (!fn->Invoke())
return 0;
}
}
return 1;
}
static cell_t DumpStackTrace(IPluginContext *cx, const cell_t *params)
{
FrameIterator iter;
DumpStack(iter);
return 0;
}
static int Execute(const char *file)
{
char error[255];
AutoPtr<IPluginRuntime> rt(sEnv->APIv2()->LoadBinaryFromFile(file, error, sizeof(error)));
if (!rt) {
fprintf(stderr, "Could not load plugin: %s\n", error);
return 1;
}
BindNative(rt, "print", Print);
BindNative(rt, "printnum", PrintNum);
BindNative(rt, "printnums", PrintNums);
BindNative(rt, "printfloat", PrintFloat);
BindNative(rt, "donothing", DoNothing);
BindNative(rt, "execute", DoExecute);
BindNative(rt, "invoke", DoInvoke);
BindNative(rt, "dump_stack_trace", DumpStackTrace);
IPluginFunction *fun = rt->GetFunctionByName("main");
if (!fun)
return 0;
IPluginContext *cx = rt->GetDefaultContext();
int result;
{
ExceptionHandler eh(cx);
if (!fun->Invoke(&result)) {
fprintf(stderr, "Error executing main: %s\n", eh.Message());
return 1;
}
}
return result;
}
int main(int argc, char **argv)
{
if (argc != 2) {
fprintf(stderr, "Usage: <file>\n");
return 1;
}
if ((sEnv = Environment::New()) == nullptr) {
fprintf(stderr, "Could not initialize ISourcePawnEngine2\n");
return 1;
}
if (getenv("DISABLE_JIT"))
sEnv->SetJitEnabled(false);
ShellDebugListener debug;
sEnv->SetDebugger(&debug);
sEnv->InstallWatchdogTimer(5000);
int errcode = Execute(argv[1]);
sEnv->SetDebugger(NULL);
sEnv->Shutdown();
delete sEnv;
return errcode;
}
#else
#define MIN_API_VERSION 0x0207
EXPORTFUNC ISourcePawnFactory *
GetSourcePawnFactory(int apiVersion)
{
if (apiVersion < MIN_API_VERSION || apiVersion > SOURCEPAWN_API_VERSION)
return nullptr;
return &sFactory;
}
#endif
#if defined __linux__ || defined __APPLE__
extern "C" void __cxa_pure_virtual(void)
{
}
void *operator new(size_t size)
{
return malloc(size);
}
void *operator new[](size_t size)
{
return malloc(size);
}
void operator delete(void *ptr)
{
free(ptr);
}
void operator delete[](void * ptr)
{
free(ptr);
}
#endif