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Packit |
b5b901 |
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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b5b901 |
*
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b5b901 |
* Permission is hereby granted, free of charge, to any person obtaining a copy
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Packit |
b5b901 |
* of this software and associated documentation files (the "Software"), to
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Packit |
b5b901 |
* deal in the Software without restriction, including without limitation the
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Packit |
b5b901 |
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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Packit |
b5b901 |
* sell copies of the Software, and to permit persons to whom the Software is
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Packit |
b5b901 |
* furnished to do so, subject to the following conditions:
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Packit |
b5b901 |
*
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Packit |
b5b901 |
* The above copyright notice and this permission notice shall be included in
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Packit |
b5b901 |
* all copies or substantial portions of the Software.
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Packit |
b5b901 |
*
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Packit |
b5b901 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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Packit |
b5b901 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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Packit |
b5b901 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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Packit |
b5b901 |
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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b5b901 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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b5b901 |
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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b5b901 |
* IN THE SOFTWARE.
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Packit |
b5b901 |
*/
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Packit |
b5b901 |
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Packit |
b5b901 |
#include <assert.h>
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Packit |
b5b901 |
#include <errno.h>
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Packit |
b5b901 |
#include <limits.h>
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b5b901 |
#include <stdio.h>
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b5b901 |
#include <stdlib.h>
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Packit |
b5b901 |
#include <string.h>
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b5b901 |
#if defined(_MSC_VER) || defined(__MINGW64_VERSION_MAJOR)
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Packit |
b5b901 |
#include <crtdbg.h>
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b5b901 |
#endif
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b5b901 |
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Packit |
b5b901 |
#include "uv.h"
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b5b901 |
#include "internal.h"
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b5b901 |
#include "queue.h"
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b5b901 |
#include "handle-inl.h"
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b5b901 |
#include "heap-inl.h"
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b5b901 |
#include "req-inl.h"
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b5b901 |
|
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Packit |
b5b901 |
/* uv_once initialization guards */
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b5b901 |
static uv_once_t uv_init_guard_ = UV_ONCE_INIT;
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b5b901 |
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b5b901 |
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b5b901 |
#if defined(_DEBUG) && (defined(_MSC_VER) || defined(__MINGW64_VERSION_MAJOR))
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b5b901 |
/* Our crt debug report handler allows us to temporarily disable asserts
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b5b901 |
* just for the current thread.
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b5b901 |
*/
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b5b901 |
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b5b901 |
UV_THREAD_LOCAL int uv__crt_assert_enabled = TRUE;
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b5b901 |
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b5b901 |
static int uv__crt_dbg_report_handler(int report_type, char *message, int *ret_val) {
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b5b901 |
if (uv__crt_assert_enabled || report_type != _CRT_ASSERT)
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b5b901 |
return FALSE;
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b5b901 |
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b5b901 |
if (ret_val) {
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b5b901 |
/* Set ret_val to 0 to continue with normal execution.
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b5b901 |
* Set ret_val to 1 to trigger a breakpoint.
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b5b901 |
*/
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b5b901 |
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b5b901 |
if(IsDebuggerPresent())
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b5b901 |
*ret_val = 1;
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b5b901 |
else
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b5b901 |
*ret_val = 0;
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b5b901 |
}
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b5b901 |
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b5b901 |
/* Don't call _CrtDbgReport. */
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b5b901 |
return TRUE;
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b5b901 |
}
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b5b901 |
#else
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b5b901 |
UV_THREAD_LOCAL int uv__crt_assert_enabled = FALSE;
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b5b901 |
#endif
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b5b901 |
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b5b901 |
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b5b901 |
#if !defined(__MINGW32__) || __MSVCRT_VERSION__ >= 0x800
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b5b901 |
static void uv__crt_invalid_parameter_handler(const wchar_t* expression,
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b5b901 |
const wchar_t* function, const wchar_t * file, unsigned int line,
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b5b901 |
uintptr_t reserved) {
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b5b901 |
/* No-op. */
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b5b901 |
}
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b5b901 |
#endif
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b5b901 |
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b5b901 |
static uv_loop_t** uv__loops;
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b5b901 |
static int uv__loops_size;
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b5b901 |
static int uv__loops_capacity;
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b5b901 |
#define UV__LOOPS_CHUNK_SIZE 8
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b5b901 |
static uv_mutex_t uv__loops_lock;
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b5b901 |
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b5b901 |
static void uv__loops_init(void) {
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b5b901 |
uv_mutex_init(&uv__loops_lock);
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b5b901 |
}
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static int uv__loops_add(uv_loop_t* loop) {
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b5b901 |
uv_loop_t** new_loops;
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b5b901 |
int new_capacity, i;
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b5b901 |
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b5b901 |
uv_mutex_lock(&uv__loops_lock);
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b5b901 |
if (uv__loops_size == uv__loops_capacity) {
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b5b901 |
new_capacity = uv__loops_capacity + UV__LOOPS_CHUNK_SIZE;
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b5b901 |
new_loops = uv__realloc(uv__loops, sizeof(uv_loop_t*) * new_capacity);
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b5b901 |
if (!new_loops)
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b5b901 |
goto failed_loops_realloc;
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b5b901 |
uv__loops = new_loops;
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b5b901 |
for (i = uv__loops_capacity; i < new_capacity; ++i)
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b5b901 |
uv__loops[i] = NULL;
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b5b901 |
uv__loops_capacity = new_capacity;
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b5b901 |
}
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b5b901 |
uv__loops[uv__loops_size] = loop;
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b5b901 |
++uv__loops_size;
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b5b901 |
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b5b901 |
uv_mutex_unlock(&uv__loops_lock);
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b5b901 |
return 0;
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b5b901 |
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b5b901 |
failed_loops_realloc:
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b5b901 |
uv_mutex_unlock(&uv__loops_lock);
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b5b901 |
return ERROR_OUTOFMEMORY;
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b5b901 |
}
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b5b901 |
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b5b901 |
static void uv__loops_remove(uv_loop_t* loop) {
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b5b901 |
int loop_index;
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b5b901 |
int smaller_capacity;
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b5b901 |
uv_loop_t** new_loops;
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b5b901 |
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b5b901 |
uv_mutex_lock(&uv__loops_lock);
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b5b901 |
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for (loop_index = 0; loop_index < uv__loops_size; ++loop_index) {
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b5b901 |
if (uv__loops[loop_index] == loop)
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b5b901 |
break;
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b5b901 |
}
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Packit |
b5b901 |
/* If loop was not found, ignore */
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Packit |
b5b901 |
if (loop_index == uv__loops_size)
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Packit |
b5b901 |
goto loop_removed;
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Packit |
b5b901 |
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b5b901 |
uv__loops[loop_index] = uv__loops[uv__loops_size - 1];
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b5b901 |
uv__loops[uv__loops_size - 1] = NULL;
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b5b901 |
--uv__loops_size;
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b5b901 |
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b5b901 |
if (uv__loops_size == 0) {
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b5b901 |
uv__loops_capacity = 0;
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Packit |
b5b901 |
uv__free(uv__loops);
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Packit |
b5b901 |
uv__loops = NULL;
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Packit |
b5b901 |
goto loop_removed;
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Packit |
b5b901 |
}
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Packit |
b5b901 |
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Packit |
b5b901 |
/* If we didn't grow to big skip downsizing */
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Packit |
b5b901 |
if (uv__loops_capacity < 4 * UV__LOOPS_CHUNK_SIZE)
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Packit |
b5b901 |
goto loop_removed;
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Packit |
b5b901 |
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Packit |
b5b901 |
/* Downsize only if more than half of buffer is free */
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Packit |
b5b901 |
smaller_capacity = uv__loops_capacity / 2;
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Packit |
b5b901 |
if (uv__loops_size >= smaller_capacity)
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Packit |
b5b901 |
goto loop_removed;
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Packit |
b5b901 |
new_loops = uv__realloc(uv__loops, sizeof(uv_loop_t*) * smaller_capacity);
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Packit |
b5b901 |
if (!new_loops)
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Packit |
b5b901 |
goto loop_removed;
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Packit |
b5b901 |
uv__loops = new_loops;
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Packit |
b5b901 |
uv__loops_capacity = smaller_capacity;
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Packit |
b5b901 |
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Packit |
b5b901 |
loop_removed:
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|
Packit |
b5b901 |
uv_mutex_unlock(&uv__loops_lock);
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Packit |
b5b901 |
}
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Packit |
b5b901 |
|
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Packit |
b5b901 |
void uv__wake_all_loops(void) {
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Packit |
b5b901 |
int i;
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Packit |
b5b901 |
uv_loop_t* loop;
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Packit |
b5b901 |
|
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Packit |
b5b901 |
uv_mutex_lock(&uv__loops_lock);
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Packit |
b5b901 |
for (i = 0; i < uv__loops_size; ++i) {
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Packit |
b5b901 |
loop = uv__loops[i];
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|
Packit |
b5b901 |
assert(loop);
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|
Packit |
b5b901 |
if (loop->iocp != INVALID_HANDLE_VALUE)
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|
Packit |
b5b901 |
PostQueuedCompletionStatus(loop->iocp, 0, 0, NULL);
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|
Packit |
b5b901 |
}
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|
Packit |
b5b901 |
uv_mutex_unlock(&uv__loops_lock);
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Packit |
b5b901 |
}
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Packit |
b5b901 |
|
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Packit |
b5b901 |
static void uv_init(void) {
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Packit |
b5b901 |
/* Tell Windows that we will handle critical errors. */
|
|
Packit |
b5b901 |
SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX |
|
|
Packit |
b5b901 |
SEM_NOOPENFILEERRORBOX);
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|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Tell the CRT to not exit the application when an invalid parameter is
|
|
Packit |
b5b901 |
* passed. The main issue is that invalid FDs will trigger this behavior.
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|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
#if !defined(__MINGW32__) || __MSVCRT_VERSION__ >= 0x800
|
|
Packit |
b5b901 |
_set_invalid_parameter_handler(uv__crt_invalid_parameter_handler);
|
|
Packit |
b5b901 |
#endif
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* We also need to setup our debug report handler because some CRT
|
|
Packit |
b5b901 |
* functions (eg _get_osfhandle) raise an assert when called with invalid
|
|
Packit |
b5b901 |
* FDs even though they return the proper error code in the release build.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
#if defined(_DEBUG) && (defined(_MSC_VER) || defined(__MINGW64_VERSION_MAJOR))
|
|
Packit |
b5b901 |
_CrtSetReportHook(uv__crt_dbg_report_handler);
|
|
Packit |
b5b901 |
#endif
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Initialize tracking of all uv loops */
|
|
Packit |
b5b901 |
uv__loops_init();
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|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Fetch winapi function pointers. This must be done first because other
|
|
Packit |
b5b901 |
* initialization code might need these function pointers to be loaded.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
uv_winapi_init();
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|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Initialize winsock */
|
|
Packit |
b5b901 |
uv_winsock_init();
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|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Initialize FS */
|
|
Packit |
b5b901 |
uv_fs_init();
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|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Initialize signal stuff */
|
|
Packit |
b5b901 |
uv_signals_init();
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|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Initialize console */
|
|
Packit |
b5b901 |
uv_console_init();
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|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Initialize utilities */
|
|
Packit |
b5b901 |
uv__util_init();
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|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Initialize system wakeup detection */
|
|
Packit |
b5b901 |
uv__init_detect_system_wakeup();
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|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
int uv_loop_init(uv_loop_t* loop) {
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|
Packit |
b5b901 |
struct heap* timer_heap;
|
|
Packit |
b5b901 |
int err;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Initialize libuv itself first */
|
|
Packit |
b5b901 |
uv__once_init();
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Create an I/O completion port */
|
|
Packit |
b5b901 |
loop->iocp = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 1);
|
|
Packit |
b5b901 |
if (loop->iocp == NULL)
|
|
Packit |
b5b901 |
return uv_translate_sys_error(GetLastError());
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* To prevent uninitialized memory access, loop->time must be initialized
|
|
Packit |
b5b901 |
* to zero before calling uv_update_time for the first time.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
loop->time = 0;
|
|
Packit |
b5b901 |
uv_update_time(loop);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
QUEUE_INIT(&loop->wq);
|
|
Packit |
b5b901 |
QUEUE_INIT(&loop->handle_queue);
|
|
Packit |
b5b901 |
loop->active_reqs.count = 0;
|
|
Packit |
b5b901 |
loop->active_handles = 0;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
loop->pending_reqs_tail = NULL;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
loop->endgame_handles = NULL;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
loop->timer_heap = timer_heap = uv__malloc(sizeof(*timer_heap));
|
|
Packit |
b5b901 |
if (timer_heap == NULL) {
|
|
Packit |
b5b901 |
err = UV_ENOMEM;
|
|
Packit |
b5b901 |
goto fail_timers_alloc;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
heap_init(timer_heap);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
loop->check_handles = NULL;
|
|
Packit |
b5b901 |
loop->prepare_handles = NULL;
|
|
Packit |
b5b901 |
loop->idle_handles = NULL;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
loop->next_prepare_handle = NULL;
|
|
Packit |
b5b901 |
loop->next_check_handle = NULL;
|
|
Packit |
b5b901 |
loop->next_idle_handle = NULL;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
memset(&loop->poll_peer_sockets, 0, sizeof loop->poll_peer_sockets);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
loop->active_tcp_streams = 0;
|
|
Packit |
b5b901 |
loop->active_udp_streams = 0;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
loop->timer_counter = 0;
|
|
Packit |
b5b901 |
loop->stop_flag = 0;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
err = uv_mutex_init(&loop->wq_mutex);
|
|
Packit |
b5b901 |
if (err)
|
|
Packit |
b5b901 |
goto fail_mutex_init;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
err = uv_async_init(loop, &loop->wq_async, uv__work_done);
|
|
Packit |
b5b901 |
if (err)
|
|
Packit |
b5b901 |
goto fail_async_init;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
uv__handle_unref(&loop->wq_async);
|
|
Packit |
b5b901 |
loop->wq_async.flags |= UV_HANDLE_INTERNAL;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
err = uv__loops_add(loop);
|
|
Packit |
b5b901 |
if (err)
|
|
Packit |
b5b901 |
goto fail_async_init;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
return 0;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
fail_async_init:
|
|
Packit |
b5b901 |
uv_mutex_destroy(&loop->wq_mutex);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
fail_mutex_init:
|
|
Packit |
b5b901 |
uv__free(timer_heap);
|
|
Packit |
b5b901 |
loop->timer_heap = NULL;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
fail_timers_alloc:
|
|
Packit |
b5b901 |
CloseHandle(loop->iocp);
|
|
Packit |
b5b901 |
loop->iocp = INVALID_HANDLE_VALUE;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
return err;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
void uv_update_time(uv_loop_t* loop) {
|
|
Packit |
b5b901 |
uint64_t new_time = uv__hrtime(1000);
|
|
Packit |
b5b901 |
assert(new_time >= loop->time);
|
|
Packit |
b5b901 |
loop->time = new_time;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
void uv__once_init(void) {
|
|
Packit |
b5b901 |
uv_once(&uv_init_guard_, uv_init);
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
void uv__loop_close(uv_loop_t* loop) {
|
|
Packit |
b5b901 |
size_t i;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
uv__loops_remove(loop);
|
|
Packit |
b5b901 |
|
|
Packit Service |
e08953 |
/* Close the async handle without needing an extra loop iteration.
|
|
Packit Service |
e08953 |
* We might have a pending message, but we're just going to destroy the IOCP
|
|
Packit Service |
e08953 |
* soon, so we can just discard it now without the usual risk of a getting
|
|
Packit Service |
e08953 |
* another notification from GetQueuedCompletionStatusEx after calling the
|
|
Packit Service |
e08953 |
* close_cb (which we also skip defining). We'll assert later that queue was
|
|
Packit Service |
e08953 |
* actually empty and all reqs handled. */
|
|
Packit Service |
e08953 |
loop->wq_async.async_sent = 0;
|
|
Packit |
b5b901 |
loop->wq_async.close_cb = NULL;
|
|
Packit |
b5b901 |
uv__handle_closing(&loop->wq_async);
|
|
Packit |
b5b901 |
uv__handle_close(&loop->wq_async);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
for (i = 0; i < ARRAY_SIZE(loop->poll_peer_sockets); i++) {
|
|
Packit |
b5b901 |
SOCKET sock = loop->poll_peer_sockets[i];
|
|
Packit |
b5b901 |
if (sock != 0 && sock != INVALID_SOCKET)
|
|
Packit |
b5b901 |
closesocket(sock);
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
uv_mutex_lock(&loop->wq_mutex);
|
|
Packit |
b5b901 |
assert(QUEUE_EMPTY(&loop->wq) && "thread pool work queue not empty!");
|
|
Packit |
b5b901 |
assert(!uv__has_active_reqs(loop));
|
|
Packit |
b5b901 |
uv_mutex_unlock(&loop->wq_mutex);
|
|
Packit |
b5b901 |
uv_mutex_destroy(&loop->wq_mutex);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
uv__free(loop->timer_heap);
|
|
Packit |
b5b901 |
loop->timer_heap = NULL;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
CloseHandle(loop->iocp);
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
int uv__loop_configure(uv_loop_t* loop, uv_loop_option option, va_list ap) {
|
|
Packit |
b5b901 |
return UV_ENOSYS;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
int uv_backend_fd(const uv_loop_t* loop) {
|
|
Packit |
b5b901 |
return -1;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
int uv_loop_fork(uv_loop_t* loop) {
|
|
Packit |
b5b901 |
return UV_ENOSYS;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
int uv_backend_timeout(const uv_loop_t* loop) {
|
|
Packit |
b5b901 |
if (loop->stop_flag != 0)
|
|
Packit |
b5b901 |
return 0;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
if (!uv__has_active_handles(loop) && !uv__has_active_reqs(loop))
|
|
Packit |
b5b901 |
return 0;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
if (loop->pending_reqs_tail)
|
|
Packit |
b5b901 |
return 0;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
if (loop->endgame_handles)
|
|
Packit |
b5b901 |
return 0;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
if (loop->idle_handles)
|
|
Packit |
b5b901 |
return 0;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
return uv__next_timeout(loop);
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
static void uv__poll_wine(uv_loop_t* loop, DWORD timeout) {
|
|
Packit |
b5b901 |
DWORD bytes;
|
|
Packit |
b5b901 |
ULONG_PTR key;
|
|
Packit |
b5b901 |
OVERLAPPED* overlapped;
|
|
Packit |
b5b901 |
uv_req_t* req;
|
|
Packit |
b5b901 |
int repeat;
|
|
Packit |
b5b901 |
uint64_t timeout_time;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
timeout_time = loop->time + timeout;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
for (repeat = 0; ; repeat++) {
|
|
Packit |
b5b901 |
GetQueuedCompletionStatus(loop->iocp,
|
|
Packit |
b5b901 |
&bytes,
|
|
Packit |
b5b901 |
&key,
|
|
Packit |
b5b901 |
&overlapped,
|
|
Packit |
b5b901 |
timeout);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
if (overlapped) {
|
|
Packit |
b5b901 |
/* Package was dequeued */
|
|
Packit |
b5b901 |
req = uv_overlapped_to_req(overlapped);
|
|
Packit |
b5b901 |
uv_insert_pending_req(loop, req);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Some time might have passed waiting for I/O,
|
|
Packit |
b5b901 |
* so update the loop time here.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
uv_update_time(loop);
|
|
Packit |
b5b901 |
} else if (GetLastError() != WAIT_TIMEOUT) {
|
|
Packit |
b5b901 |
/* Serious error */
|
|
Packit |
b5b901 |
uv_fatal_error(GetLastError(), "GetQueuedCompletionStatus");
|
|
Packit |
b5b901 |
} else if (timeout > 0) {
|
|
Packit |
b5b901 |
/* GetQueuedCompletionStatus can occasionally return a little early.
|
|
Packit |
b5b901 |
* Make sure that the desired timeout target time is reached.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
uv_update_time(loop);
|
|
Packit |
b5b901 |
if (timeout_time > loop->time) {
|
|
Packit |
b5b901 |
timeout = (DWORD)(timeout_time - loop->time);
|
|
Packit |
b5b901 |
/* The first call to GetQueuedCompletionStatus should return very
|
|
Packit |
b5b901 |
* close to the target time and the second should reach it, but
|
|
Packit |
b5b901 |
* this is not stated in the documentation. To make sure a busy
|
|
Packit |
b5b901 |
* loop cannot happen, the timeout is increased exponentially
|
|
Packit |
b5b901 |
* starting on the third round.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
timeout += repeat ? (1 << (repeat - 1)) : 0;
|
|
Packit |
b5b901 |
continue;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
break;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
static void uv__poll(uv_loop_t* loop, DWORD timeout) {
|
|
Packit |
b5b901 |
BOOL success;
|
|
Packit |
b5b901 |
uv_req_t* req;
|
|
Packit |
b5b901 |
OVERLAPPED_ENTRY overlappeds[128];
|
|
Packit |
b5b901 |
ULONG count;
|
|
Packit |
b5b901 |
ULONG i;
|
|
Packit |
b5b901 |
int repeat;
|
|
Packit |
b5b901 |
uint64_t timeout_time;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
timeout_time = loop->time + timeout;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
for (repeat = 0; ; repeat++) {
|
|
Packit Service |
e08953 |
success = pGetQueuedCompletionStatusEx(loop->iocp,
|
|
Packit Service |
e08953 |
overlappeds,
|
|
Packit Service |
e08953 |
ARRAY_SIZE(overlappeds),
|
|
Packit Service |
e08953 |
&count,
|
|
Packit Service |
e08953 |
timeout,
|
|
Packit Service |
e08953 |
FALSE);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
if (success) {
|
|
Packit |
b5b901 |
for (i = 0; i < count; i++) {
|
|
Packit |
b5b901 |
/* Package was dequeued, but see if it is not a empty package
|
|
Packit |
b5b901 |
* meant only to wake us up.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
if (overlappeds[i].lpOverlapped) {
|
|
Packit |
b5b901 |
req = uv_overlapped_to_req(overlappeds[i].lpOverlapped);
|
|
Packit |
b5b901 |
uv_insert_pending_req(loop, req);
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* Some time might have passed waiting for I/O,
|
|
Packit |
b5b901 |
* so update the loop time here.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
uv_update_time(loop);
|
|
Packit |
b5b901 |
} else if (GetLastError() != WAIT_TIMEOUT) {
|
|
Packit |
b5b901 |
/* Serious error */
|
|
Packit |
b5b901 |
uv_fatal_error(GetLastError(), "GetQueuedCompletionStatusEx");
|
|
Packit |
b5b901 |
} else if (timeout > 0) {
|
|
Packit |
b5b901 |
/* GetQueuedCompletionStatus can occasionally return a little early.
|
|
Packit |
b5b901 |
* Make sure that the desired timeout target time is reached.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
uv_update_time(loop);
|
|
Packit |
b5b901 |
if (timeout_time > loop->time) {
|
|
Packit |
b5b901 |
timeout = (DWORD)(timeout_time - loop->time);
|
|
Packit |
b5b901 |
/* The first call to GetQueuedCompletionStatus should return very
|
|
Packit |
b5b901 |
* close to the target time and the second should reach it, but
|
|
Packit |
b5b901 |
* this is not stated in the documentation. To make sure a busy
|
|
Packit |
b5b901 |
* loop cannot happen, the timeout is increased exponentially
|
|
Packit |
b5b901 |
* starting on the third round.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
timeout += repeat ? (1 << (repeat - 1)) : 0;
|
|
Packit |
b5b901 |
continue;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
break;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
static int uv__loop_alive(const uv_loop_t* loop) {
|
|
Packit |
b5b901 |
return uv__has_active_handles(loop) ||
|
|
Packit |
b5b901 |
uv__has_active_reqs(loop) ||
|
|
Packit |
b5b901 |
loop->endgame_handles != NULL;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
int uv_loop_alive(const uv_loop_t* loop) {
|
|
Packit |
b5b901 |
return uv__loop_alive(loop);
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
int uv_run(uv_loop_t *loop, uv_run_mode mode) {
|
|
Packit |
b5b901 |
DWORD timeout;
|
|
Packit |
b5b901 |
int r;
|
|
Packit |
b5b901 |
int ran_pending;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
r = uv__loop_alive(loop);
|
|
Packit |
b5b901 |
if (!r)
|
|
Packit |
b5b901 |
uv_update_time(loop);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
while (r != 0 && loop->stop_flag == 0) {
|
|
Packit |
b5b901 |
uv_update_time(loop);
|
|
Packit |
b5b901 |
uv__run_timers(loop);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
ran_pending = uv_process_reqs(loop);
|
|
Packit |
b5b901 |
uv_idle_invoke(loop);
|
|
Packit |
b5b901 |
uv_prepare_invoke(loop);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
timeout = 0;
|
|
Packit |
b5b901 |
if ((mode == UV_RUN_ONCE && !ran_pending) || mode == UV_RUN_DEFAULT)
|
|
Packit |
b5b901 |
timeout = uv_backend_timeout(loop);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
if (pGetQueuedCompletionStatusEx)
|
|
Packit |
b5b901 |
uv__poll(loop, timeout);
|
|
Packit |
b5b901 |
else
|
|
Packit |
b5b901 |
uv__poll_wine(loop, timeout);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
uv_check_invoke(loop);
|
|
Packit |
b5b901 |
uv_process_endgames(loop);
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
if (mode == UV_RUN_ONCE) {
|
|
Packit |
b5b901 |
/* UV_RUN_ONCE implies forward progress: at least one callback must have
|
|
Packit |
b5b901 |
* been invoked when it returns. uv__io_poll() can return without doing
|
|
Packit |
b5b901 |
* I/O (meaning: no callbacks) when its timeout expires - which means we
|
|
Packit |
b5b901 |
* have pending timers that satisfy the forward progress constraint.
|
|
Packit |
b5b901 |
*
|
|
Packit |
b5b901 |
* UV_RUN_NOWAIT makes no guarantees about progress so it's omitted from
|
|
Packit |
b5b901 |
* the check.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
uv__run_timers(loop);
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
r = uv__loop_alive(loop);
|
|
Packit |
b5b901 |
if (mode == UV_RUN_ONCE || mode == UV_RUN_NOWAIT)
|
|
Packit |
b5b901 |
break;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
/* The if statement lets the compiler compile it to a conditional store.
|
|
Packit |
b5b901 |
* Avoids dirtying a cache line.
|
|
Packit |
b5b901 |
*/
|
|
Packit |
b5b901 |
if (loop->stop_flag != 0)
|
|
Packit |
b5b901 |
loop->stop_flag = 0;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
return r;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
int uv_fileno(const uv_handle_t* handle, uv_os_fd_t* fd) {
|
|
Packit |
b5b901 |
uv_os_fd_t fd_out;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
switch (handle->type) {
|
|
Packit |
b5b901 |
case UV_TCP:
|
|
Packit |
b5b901 |
fd_out = (uv_os_fd_t)((uv_tcp_t*) handle)->socket;
|
|
Packit |
b5b901 |
break;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
case UV_NAMED_PIPE:
|
|
Packit |
b5b901 |
fd_out = ((uv_pipe_t*) handle)->handle;
|
|
Packit |
b5b901 |
break;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
case UV_TTY:
|
|
Packit |
b5b901 |
fd_out = ((uv_tty_t*) handle)->handle;
|
|
Packit |
b5b901 |
break;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
case UV_UDP:
|
|
Packit |
b5b901 |
fd_out = (uv_os_fd_t)((uv_udp_t*) handle)->socket;
|
|
Packit |
b5b901 |
break;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
case UV_POLL:
|
|
Packit |
b5b901 |
fd_out = (uv_os_fd_t)((uv_poll_t*) handle)->socket;
|
|
Packit |
b5b901 |
break;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
default:
|
|
Packit |
b5b901 |
return UV_EINVAL;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
if (uv_is_closing(handle) || fd_out == INVALID_HANDLE_VALUE)
|
|
Packit |
b5b901 |
return UV_EBADF;
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
*fd = fd_out;
|
|
Packit |
b5b901 |
return 0;
|
|
Packit |
b5b901 |
}
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
|
|
Packit |
b5b901 |
int uv__socket_sockopt(uv_handle_t* handle, int optname, int* value) {
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Packit |
b5b901 |
int r;
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Packit |
b5b901 |
int len;
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Packit |
b5b901 |
SOCKET socket;
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Packit |
b5b901 |
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Packit |
b5b901 |
if (handle == NULL || value == NULL)
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Packit |
b5b901 |
return UV_EINVAL;
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Packit |
b5b901 |
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Packit |
b5b901 |
if (handle->type == UV_TCP)
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Packit |
b5b901 |
socket = ((uv_tcp_t*) handle)->socket;
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Packit |
b5b901 |
else if (handle->type == UV_UDP)
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Packit |
b5b901 |
socket = ((uv_udp_t*) handle)->socket;
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Packit |
b5b901 |
else
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Packit |
b5b901 |
return UV_ENOTSUP;
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Packit |
b5b901 |
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Packit |
b5b901 |
len = sizeof(*value);
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Packit |
b5b901 |
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Packit |
b5b901 |
if (*value == 0)
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Packit |
b5b901 |
r = getsockopt(socket, SOL_SOCKET, optname, (char*) value, &len;;
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Packit |
b5b901 |
else
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Packit |
b5b901 |
r = setsockopt(socket, SOL_SOCKET, optname, (const char*) value, len);
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Packit |
b5b901 |
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Packit |
b5b901 |
if (r == SOCKET_ERROR)
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Packit |
b5b901 |
return uv_translate_sys_error(WSAGetLastError());
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Packit |
b5b901 |
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Packit |
b5b901 |
return 0;
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Packit |
b5b901 |
}
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Packit Service |
e08953 |
|
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Packit Service |
e08953 |
int uv_cpumask_size(void) {
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Packit Service |
e08953 |
return (int)(sizeof(DWORD_PTR) * 8);
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|
Packit Service |
e08953 |
}
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Packit Service |
e08953 |
|
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Packit Service |
e08953 |
int uv__getsockpeername(const uv_handle_t* handle,
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Packit Service |
e08953 |
uv__peersockfunc func,
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Packit Service |
e08953 |
struct sockaddr* name,
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Packit Service |
e08953 |
int* namelen,
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Packit Service |
e08953 |
int delayed_error) {
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Packit Service |
e08953 |
|
|
Packit Service |
e08953 |
int result;
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|
Packit Service |
e08953 |
uv_os_fd_t fd;
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|
Packit Service |
e08953 |
|
|
Packit Service |
e08953 |
result = uv_fileno(handle, &fd;;
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|
Packit Service |
e08953 |
if (result != 0)
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|
Packit Service |
e08953 |
return result;
|
|
Packit Service |
e08953 |
|
|
Packit Service |
e08953 |
if (delayed_error)
|
|
Packit Service |
e08953 |
return uv_translate_sys_error(delayed_error);
|
|
Packit Service |
e08953 |
|
|
Packit Service |
e08953 |
result = func((SOCKET) fd, name, namelen);
|
|
Packit Service |
e08953 |
if (result != 0)
|
|
Packit Service |
e08953 |
return uv_translate_sys_error(WSAGetLastError());
|
|
Packit Service |
e08953 |
|
|
Packit Service |
e08953 |
return 0;
|
|
Packit Service |
e08953 |
}
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