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node_isolate.h
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124 lines (97 loc) · 3.17 KB
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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SRC_NODE_ISOLATE_H_
#define SRC_NODE_ISOLATE_H_
#include "v8.h"
#include "uv.h"
#include "node_vars.h"
#include "ngx-queue.h"
#ifdef NDEBUG
# define NODE_ISOLATE_CHECK(ptr) ((void) (ptr))
#else
# include <assert.h>
# define NODE_ISOLATE_CHECK(ptr) \
do { \
node::Isolate* data_ = node::Isolate::GetCurrent(); \
assert(data_ == (ptr)); \
} \
while (0)
#endif
namespace node {
class Isolate {
public:
char** argv_;
int argc_;
uv_thread_t tid_;
// Call this before instantiating any Isolate
static void Initialize();
static int Count();
typedef void (*AtExitCallback)(void* arg);
static void JoinAll();
static Isolate* GetCurrent() {
return reinterpret_cast<Isolate*>(v8::Isolate::GetCurrent()->GetData());
}
uv_loop_t* GetLoop() {
NODE_ISOLATE_CHECK(this);
return loop_;
}
v8::Isolate* GetV8Isolate() {
NODE_ISOLATE_CHECK(this);
return v8_isolate_;
}
v8::Handle<v8::Context> GetV8Context() {
NODE_ISOLATE_CHECK(this);
return v8_context_;
}
/* Register a handler that should run when the current isolate exits.
* Handlers run in LIFO order.
*/
void AtExit(AtExitCallback callback, void *arg);
struct globals* Globals();
unsigned int id_;
// This constructor is used for every non-main thread
Isolate();
~Isolate() {
if (argv_) {
delete argv_;
}
}
void Enter();
/* Shutdown the isolate. Call this method at thread death. */
void Dispose();
private:
struct AtExitCallbackInfo {
ngx_queue_t at_exit_callbacks_;
AtExitCallback callback_;
void* arg_;
};
ngx_queue_t at_exit_callbacks_;
v8::Persistent<v8::Context> v8_context_;
v8::Isolate* v8_isolate_;
uv_loop_t* loop_;
// Each isolate is a member of the static list_head.
ngx_queue_t list_member_;
// Global variables for this isolate.
struct globals globals_;
bool globals_init_;
};
} // namespace node
#endif // SRC_NODE_ISOLATE_H_