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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
*
* 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.
*/
#include "uv.h"
#include "uv-common.h"
#include <stdio.h>
#include <assert.h>
#include <stddef.h> /* NULL */
#include <stdlib.h> /* malloc */
#include <string.h> /* memset */
#define XX(uc, lc) case UV_##uc: return sizeof(uv_##lc##_t);
size_t uv_handle_size(uv_handle_type type) {
switch (type) {
UV_HANDLE_TYPE_MAP(XX)
default:
return -1;
}
}
size_t uv_req_size(uv_req_type type) {
switch(type) {
UV_REQ_TYPE_MAP(XX)
default:
return -1;
}
}
#undef XX
size_t uv_strlcpy(char* dst, const char* src, size_t size) {
size_t n;
if (size == 0)
return 0;
for (n = 0; n < (size - 1) && *src != '\0'; n++)
*dst++ = *src++;
*dst = '\0';
return n;
}
size_t uv_strlcat(char* dst, const char* src, size_t size) {
size_t n;
if (size == 0)
return 0;
for (n = 0; n < size && *dst != '\0'; n++, dst++);
if (n == size)
return n;
while (n < (size - 1) && *src != '\0')
n++, *dst++ = *src++;
*dst = '\0';
return n;
}
uv_buf_t uv_buf_init(char* base, unsigned int len) {
uv_buf_t buf;
buf.base = base;
buf.len = len;
return buf;
}
const uv_err_t uv_ok_ = { UV_OK, 0 };
#define UV_ERR_NAME_GEN(val, name, s) case UV_##name : return #name;
const char* uv_err_name(uv_err_t err) {
switch (err.code) {
UV_ERRNO_MAP(UV_ERR_NAME_GEN)
default:
assert(0);
return NULL;
}
}
#undef UV_ERR_NAME_GEN
#define UV_STRERROR_GEN(val, name, s) case UV_##name : return s;
const char* uv_strerror(uv_err_t err) {
switch (err.code) {
UV_ERRNO_MAP(UV_STRERROR_GEN)
default:
return "Unknown system error";
}
}
#undef UV_STRERROR_GEN
int uv__set_error(uv_loop_t* loop, uv_err_code code, int sys_error) {
loop->last_err.code = code;
loop->last_err.sys_errno_ = sys_error;
return -1;
}
int uv__set_sys_error(uv_loop_t* loop, int sys_error) {
loop->last_err.code = uv_translate_sys_error(sys_error);
loop->last_err.sys_errno_ = sys_error;
return -1;
}
int uv__set_artificial_error(uv_loop_t* loop, uv_err_code code) {
loop->last_err = uv__new_artificial_error(code);
return -1;
}
uv_err_t uv__new_sys_error(int sys_error) {
uv_err_t error;
error.code = uv_translate_sys_error(sys_error);
error.sys_errno_ = sys_error;
return error;
}
uv_err_t uv__new_artificial_error(uv_err_code code) {
uv_err_t error;
error.code = code;
error.sys_errno_ = 0;
return error;
}
uv_err_t uv_last_error(uv_loop_t* loop) {
return loop->last_err;
}
struct sockaddr_in uv_ip4_addr(const char* ip, int port) {
struct sockaddr_in addr;
memset(&addr, 0, sizeof(struct sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = inet_addr(ip);
return addr;
}
struct sockaddr_in6 uv_ip6_addr(const char* ip, int port) {
struct sockaddr_in6 addr;
memset(&addr, 0, sizeof(struct sockaddr_in6));
addr.sin6_family = AF_INET6;
addr.sin6_port = htons(port);
uv_inet_pton(AF_INET6, ip, &addr.sin6_addr);
return addr;
}
int uv_ip4_name(struct sockaddr_in* src, char* dst, size_t size) {
uv_err_t err = uv_inet_ntop(AF_INET, &src->sin_addr, dst, size);
return err.code != UV_OK;
}
int uv_ip6_name(struct sockaddr_in6* src, char* dst, size_t size) {
uv_err_t err = uv_inet_ntop(AF_INET6, &src->sin6_addr, dst, size);
return err.code != UV_OK;
}
int uv_tcp_bind(uv_tcp_t* handle, struct sockaddr_in addr) {
if (handle->type != UV_TCP || addr.sin_family != AF_INET) {
uv__set_artificial_error(handle->loop, UV_EFAULT);
return -1;
}
return uv__tcp_bind(handle, addr);
}
int uv_tcp_bind6(uv_tcp_t* handle, struct sockaddr_in6 addr) {
if (handle->type != UV_TCP || addr.sin6_family != AF_INET6) {
uv__set_artificial_error(handle->loop, UV_EFAULT);
return -1;
}
return uv__tcp_bind6(handle, addr);
}
int uv_udp_bind(uv_udp_t* handle, struct sockaddr_in addr,
unsigned int flags) {
if (handle->type != UV_UDP || addr.sin_family != AF_INET) {
uv__set_artificial_error(handle->loop, UV_EFAULT);
return -1;
}
return uv__udp_bind(handle, addr, flags);
}
int uv_udp_bind6(uv_udp_t* handle, struct sockaddr_in6 addr,
unsigned int flags) {
if (handle->type != UV_UDP || addr.sin6_family != AF_INET6) {
uv__set_artificial_error(handle->loop, UV_EFAULT);
return -1;
}
return uv__udp_bind6(handle, addr, flags);
}
int uv_tcp_connect(uv_connect_t* req,
uv_tcp_t* handle,
struct sockaddr_in address,
uv_connect_cb cb) {
if (handle->type != UV_TCP || address.sin_family != AF_INET) {
uv__set_artificial_error(handle->loop, UV_EINVAL);
return -1;
}
return uv__tcp_connect(req, handle, address, cb);
}
int uv_tcp_connect6(uv_connect_t* req,
uv_tcp_t* handle,
struct sockaddr_in6 address,
uv_connect_cb cb) {
if (handle->type != UV_TCP || address.sin6_family != AF_INET6) {
uv__set_artificial_error(handle->loop, UV_EINVAL);
return -1;
}
return uv__tcp_connect6(req, handle, address, cb);
}
#ifdef _WIN32
static UINT __stdcall uv__thread_start(void *ctx_v)
#else
static void *uv__thread_start(void *ctx_v)
#endif
{
void (*entry)(void *arg);
void *arg;
struct {
void (*entry)(void *arg);
void *arg;
} *ctx;
ctx = ctx_v;
arg = ctx->arg;
entry = ctx->entry;
free(ctx);
entry(arg);
return 0;
}
int uv_thread_create(uv_thread_t *tid, void (*entry)(void *arg), void *arg) {
struct {
void (*entry)(void *arg);
void *arg;
} *ctx;
if ((ctx = malloc(sizeof *ctx)) == NULL)
return -1;
ctx->entry = entry;
ctx->arg = arg;
#ifdef _WIN32
*tid = (HANDLE) _beginthreadex(NULL, 0, uv__thread_start, ctx, 0, NULL);
if (*tid == 0) {
#else
if (pthread_create(tid, NULL, uv__thread_start, ctx)) {
#endif
free(ctx);
return -1;
}
return 0;
}
unsigned long uv_thread_self(void) {
#ifdef _WIN32
return (unsigned long) GetCurrentThreadId();
#else
return (unsigned long) pthread_self();
#endif
}
void uv_walk(uv_loop_t* loop, uv_walk_cb walk_cb, void* arg) {
ngx_queue_t* q;
uv_handle_t* h;
ngx_queue_foreach(q, &loop->handle_queue) {
h = ngx_queue_data(q, uv_handle_t, handle_queue);
if (h->flags & UV__HANDLE_INTERNAL) continue;
walk_cb(h, arg);
}
}
#ifndef NDEBUG
static void uv__print_handles(uv_loop_t* loop, int only_active) {
const char* type;
ngx_queue_t* q;
uv_handle_t* h;
if (loop == NULL)
loop = uv_default_loop();
ngx_queue_foreach(q, &loop->handle_queue) {
h = ngx_queue_data(q, uv_handle_t, handle_queue);
if (only_active && !uv__is_active(h))
continue;
switch (h->type) {
#define X(uc, lc) case UV_##uc: type = #lc; break;
UV_HANDLE_TYPE_MAP(X)
#undef X
default: type = "<unknown>";
}
fprintf(stderr,
"[%c%c%c] %-8s %p\n",
"R-"[!(h->flags & UV__HANDLE_REF)],
"A-"[!(h->flags & UV__HANDLE_ACTIVE)],
"I-"[!(h->flags & UV__HANDLE_INTERNAL)],
type,
(void*)h);
}
}
void uv_print_all_handles(uv_loop_t* loop) {
uv__print_handles(loop, 0);
}
void uv_print_active_handles(uv_loop_t* loop) {
uv__print_handles(loop, 1);
}
#endif
void uv_ref(uv_handle_t* handle) {
uv__handle_ref(handle);
}
void uv_unref(uv_handle_t* handle) {
uv__handle_unref(handle);
}
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