/src/CMake/Utilities/cmlibuv/src/uv-common.h

Source
/* 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.
 */

/*
 * This file is private to libuv. It provides common functionality to both
 * Windows and Unix backends.
 */

#ifndef UV_COMMON_H_
#define UV_COMMON_H_

#include <assert.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>

#include "uv.h"
#include "uv/tree.h"
#include "queue.h"
#include "strscpy.h"

#ifndef _MSC_VER
# include <stdatomic.h>
#endif

#if EDOM > 0
# define UV__ERR(x) (-(x))
#else
# define UV__ERR(x) (x)
#endif

#if !defined(snprintf) && defined(_MSC_VER) && _MSC_VER < 1900
extern int snprintf(char*, size_t, const char*, ...);
#endif

#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
#define ARRAY_END(a)  ((a) + ARRAY_SIZE(a))

#define container_of(ptr, type, member) \
  ((type *) ((char *) (ptr) - offsetof(type, member)))

/* C11 defines static_assert to be a macro which calls _Static_assert. */
#if defined(static_assert)
#define STATIC_ASSERT(expr) static_assert(expr, #expr)
#else
#define STATIC_ASSERT(expr)                                                   \
  void uv__static_assert(int static_assert_failed[1 - 2 * !(expr)])
#endif

#ifdef _MSC_VER
#define uv__exchange_int_relaxed(p, v)                                        \
  InterlockedExchangeNoFence((LONG volatile*)(p), v)
#else
#define uv__exchange_int_relaxed(p, v)                                        \
  atomic_exchange_explicit((_Atomic int*)(p), v, memory_order_relaxed)
#endif

#define UV__UDP_DGRAM_MAXSIZE (64 * 1024)

/* Handle flags. Some flags are specific to Windows or UNIX. */
enum {
  /* Used by all handles. */
  UV_HANDLE_CLOSING                     = 0x00000001,
  UV_HANDLE_CLOSED                      = 0x00000002,
  UV_HANDLE_ACTIVE                      = 0x00000004,
  UV_HANDLE_REF                         = 0x00000008,
  UV_HANDLE_INTERNAL                    = 0x00000010,
  UV_HANDLE_ENDGAME_QUEUED              = 0x00000020,

  /* Used by streams. */
  UV_HANDLE_LISTENING                   = 0x00000040,
  UV_HANDLE_CONNECTION                  = 0x00000080,
  UV_HANDLE_SHUT                        = 0x00000200,
  UV_HANDLE_READ_EOF                    = 0x00000800,

  /* Used by streams and UDP handles. */
  UV_HANDLE_READING                     = 0x00001000,
  UV_HANDLE_BOUND                       = 0x00002000,
  UV_HANDLE_READABLE                    = 0x00004000,
  UV_HANDLE_WRITABLE                    = 0x00008000,
  UV_HANDLE_READ_PENDING                = 0x00010000,
  UV_HANDLE_SYNC_BYPASS_IOCP            = 0x00020000,
  UV_HANDLE_ZERO_READ                   = 0x00040000,
  UV_HANDLE_EMULATE_IOCP                = 0x00080000,
  UV_HANDLE_BLOCKING_WRITES             = 0x00100000,
  UV_HANDLE_CANCELLATION_PENDING        = 0x00200000,

  /* Used by uv_tcp_t and uv_udp_t handles */
  UV_HANDLE_IPV6                        = 0x00400000,

  /* Only used by uv_tcp_t handles. */
  UV_HANDLE_TCP_NODELAY                 = 0x01000000,
  UV_HANDLE_TCP_KEEPALIVE               = 0x02000000,
  UV_HANDLE_TCP_SINGLE_ACCEPT           = 0x04000000,
  UV_HANDLE_TCP_ACCEPT_STATE_CHANGING   = 0x08000000,
  UV_HANDLE_SHARED_TCP_SOCKET           = 0x10000000,

  /* Only used by uv_udp_t handles. */
  UV_HANDLE_UDP_PROCESSING              = 0x01000000,
  UV_HANDLE_UDP_CONNECTED               = 0x02000000,
  UV_HANDLE_UDP_RECVMMSG                = 0x04000000,

  /* Only used by uv_pipe_t handles. */
  UV_HANDLE_NON_OVERLAPPED_PIPE         = 0x01000000,
  UV_HANDLE_PIPESERVER                  = 0x02000000,

  /* Only used by uv_tty_t handles. */
  UV_HANDLE_TTY_READABLE                = 0x01000000,
  UV_HANDLE_UNUSED0                     = 0x02000000,
  UV_HANDLE_TTY_SAVED_POSITION          = 0x04000000,
  UV_HANDLE_TTY_SAVED_ATTRIBUTES        = 0x08000000,

  /* Only used by uv_signal_t handles. */
  UV_SIGNAL_ONE_SHOT_DISPATCHED         = 0x01000000,
  UV_SIGNAL_ONE_SHOT                    = 0x02000000,

  /* Only used by uv_poll_t handles. */
  UV_HANDLE_POLL_SLOW                   = 0x01000000,

  /* Only used by uv_process_t handles. */
  UV_HANDLE_REAP                        = 0x10000000
};

static inline int uv__is_raw_tty_mode(uv_tty_mode_t m) {
  return m == UV_TTY_MODE_RAW || m == UV_TTY_MODE_RAW_VT;
}

int uv__loop_configure(uv_loop_t* loop, uv_loop_option option, va_list ap);

void uv__loop_close(uv_loop_t* loop);

int uv__read_start(uv_stream_t* stream,
                   uv_alloc_cb alloc_cb,
                   uv_read_cb read_cb);

int uv__tcp_bind(uv_tcp_t* tcp,
                 const struct sockaddr* addr,
                 unsigned int addrlen,
                 unsigned int flags);

int uv__tcp_connect(uv_connect_t* req,
                   uv_tcp_t* handle,
                   const struct sockaddr* addr,
                   unsigned int addrlen,
                   uv_connect_cb cb);

int uv__udp_init_ex(uv_loop_t* loop,
                    uv_udp_t* handle,
                    unsigned flags,
                    int domain);

int uv__udp_bind(uv_udp_t* handle,
                 const struct sockaddr* addr,
                 unsigned int  addrlen,
                 unsigned int flags);

int uv__udp_connect(uv_udp_t* handle,
                    const struct sockaddr* addr,
                    unsigned int addrlen);

int uv__udp_disconnect(uv_udp_t* handle);

int uv__udp_is_connected(uv_udp_t* handle);

int uv__udp_send(uv_udp_send_t* req,
                 uv_udp_t* handle,
                 const uv_buf_t bufs[],
                 unsigned int nbufs,
                 const struct sockaddr* addr,
                 unsigned int addrlen,
                 uv_udp_send_cb send_cb);

int uv__udp_try_send(uv_udp_t* handle,
                     const uv_buf_t bufs[],
                     unsigned int nbufs,
                     const struct sockaddr* addr,
                     unsigned int addrlen);

int uv__udp_try_send2(uv_udp_t* handle,
                      unsigned int count,
                      uv_buf_t* bufs[/*count*/],
                      unsigned int nbufs[/*count*/],
                      struct sockaddr* addrs[/*count*/]);

int uv__udp_recv_start(uv_udp_t* handle, uv_alloc_cb alloccb,
                       uv_udp_recv_cb recv_cb);

int uv__udp_recv_stop(uv_udp_t* handle);

void uv__fs_poll_close(uv_fs_poll_t* handle);

int uv__getaddrinfo_translate_error(int sys_err);    /* EAI_* error. */

enum uv__work_kind {
  UV__WORK_CPU,
  UV__WORK_FAST_IO,
  UV__WORK_SLOW_IO
};

void uv__work_submit(uv_loop_t* loop,
                     struct uv__work *w,
                     enum uv__work_kind kind,
                     void (*work)(struct uv__work *w),
                     void (*done)(struct uv__work *w, int status));

void uv__work_done(uv_async_t* handle);

size_t uv__count_bufs(const uv_buf_t bufs[], unsigned int nbufs);

int uv__socket_sockopt(uv_handle_t* handle, int optname, int* value);

void uv__fs_scandir_cleanup(uv_fs_t* req);
void uv__fs_readdir_cleanup(uv_fs_t* req);
uv_dirent_type_t uv__fs_get_dirent_type(uv__dirent_t* dent);

int uv__next_timeout(const uv_loop_t* loop);
void uv__run_timers(uv_loop_t* loop);
void uv__timer_close(uv_timer_t* handle);

void uv__process_title_cleanup(void);
void uv__signal_cleanup(void);
void uv__threadpool_cleanup(void);

#define uv__has_active_reqs(loop)                                             \
  ((loop)->active_reqs.count > 0)

#define uv__req_register(loop)                                                \
  do {                                                                        \
    (loop)->active_reqs.count++;                                              \
  }                                                                           \
  while (0)

#define uv__req_unregister(loop)                                              \
  do {                                                                        \
    assert(uv__has_active_reqs(loop));                                        \
    (loop)->active_reqs.count--;                                              \
  }                                                                           \
  while (0)

#define uv__has_active_handles(loop)                                          \
  ((loop)->active_handles > 0)

#define uv__active_handle_add(h)                                              \
  do {                                                                        \
    (h)->loop->active_handles++;                                              \
  }                                                                           \
  while (0)

#define uv__active_handle_rm(h)                                               \
  do {                                                                        \
    (h)->loop->active_handles--;                                              \
  }                                                                           \
  while (0)

#define uv__is_active(h)                                                      \
  (((h)->flags & UV_HANDLE_ACTIVE) != 0)

#define uv__is_closing(h)                                                     \
  (((h)->flags & (UV_HANDLE_CLOSING | UV_HANDLE_CLOSED)) != 0)

#if defined(_WIN32)
# define uv__is_stream_shutting(h)                                            \
  (h->stream.conn.shutdown_req != NULL)
#else
# define uv__is_stream_shutting(h)                                            \
  (h->shutdown_req != NULL)
#endif

#define uv__handle_start(h)                                                   \
  do {                                                                        \
    if (((h)->flags & UV_HANDLE_ACTIVE) != 0) break;                          \
    (h)->flags |= UV_HANDLE_ACTIVE;                                           \
    if (((h)->flags & UV_HANDLE_REF) != 0) uv__active_handle_add(h);          \
  }                                                                           \
  while (0)

#define uv__handle_stop(h)                                                    \
  do {                                                                        \
    if (((h)->flags & UV_HANDLE_ACTIVE) == 0) break;                          \
    (h)->flags &= ~UV_HANDLE_ACTIVE;                                          \
    if (((h)->flags & UV_HANDLE_REF) != 0) uv__active_handle_rm(h);           \
  }                                                                           \
  while (0)

#define uv__handle_ref(h)                                                     \
  do {                                                                        \
    if (((h)->flags & UV_HANDLE_REF) != 0) break;                             \
    (h)->flags |= UV_HANDLE_REF;                                              \
    if (((h)->flags & UV_HANDLE_CLOSING) != 0) break;                         \
    if (((h)->flags & UV_HANDLE_ACTIVE) != 0) uv__active_handle_add(h);       \
  }                                                                           \
  while (0)

#define uv__handle_unref(h)                                                   \
  do {                                                                        \
    if (((h)->flags & UV_HANDLE_REF) == 0) break;                             \
    (h)->flags &= ~UV_HANDLE_REF;                                             \
    if (((h)->flags & UV_HANDLE_CLOSING) != 0) break;                         \
    if (((h)->flags & UV_HANDLE_ACTIVE) != 0) uv__active_handle_rm(h);        \
  }                                                                           \
  while (0)

#define uv__has_ref(h)                                                        \
  (((h)->flags & UV_HANDLE_REF) != 0)

#if defined(_WIN32)
# define uv__handle_platform_init(h) ((h)->u.fd = -1)
#else
# define uv__handle_platform_init(h) ((h)->next_closing = NULL)
#endif

#define uv__handle_init(loop_, h, type_)                                      \
  do {                                                                        \
    (h)->loop = (loop_);                                                      \
    (h)->type = (type_);                                                      \
    (h)->flags = UV_HANDLE_REF;  /* Ref the loop when active. */              \
    uv__queue_insert_tail(&(loop_)->handle_queue, &(h)->handle_queue);        \
    uv__handle_platform_init(h);                                              \
  }                                                                           \
  while (0)

/* Note: uses an open-coded version of SET_REQ_SUCCESS() because of
 * a circular dependency between src/uv-common.h and src/win/internal.h.
 */
#if defined(_WIN32)
# define UV_REQ_INIT(req, typ)                                                \
  do {                                                                        \
    (req)->type = (typ);                                                      \
    (req)->u.io.overlapped.Internal = 0;  /* SET_REQ_SUCCESS() */             \
  }                                                                           \
  while (0)
#else
# define UV_REQ_INIT(req, typ)                                                \
  do {                                                                        \
    (req)->type = (typ);                                                      \
  }                                                                           \
  while (0)
#endif

#define uv__req_init(loop, req, typ)                                          \
  do {                                                                        \
    UV_REQ_INIT(req, typ);                                                    \
    uv__req_register(loop);                                                   \
  }                                                                           \
  while (0)

#define uv__get_internal_fields(loop)                                         \
  ((uv__loop_internal_fields_t*) loop->internal_fields)

#define uv__get_loop_metrics(loop)                                            \
  (&uv__get_internal_fields(loop)->loop_metrics)

#define uv__metrics_inc_loop_count(loop)                                      \
  do {                                                                        \
    uv__get_loop_metrics(loop)->metrics.loop_count++;                         \
  } while (0)

#define uv__metrics_inc_events(loop, e)                                       \
  do {                                                                        \
    uv__get_loop_metrics(loop)->metrics.events += (e);                        \
  } while (0)

#define uv__metrics_inc_events_waiting(loop, e)                               \
  do {                                                                        \
    uv__get_loop_metrics(loop)->metrics.events_waiting += (e);                \
  } while (0)

/* Allocator prototypes */
void *uv__calloc(size_t count, size_t size);
char *uv__strdup(const char* s);
char *uv__strndup(const char* s, size_t n);
void* uv__malloc(size_t size);
void uv__free(void* ptr);
void* uv__realloc(void* ptr, size_t size);
void* uv__reallocf(void* ptr, size_t size);

typedef struct uv__loop_metrics_s uv__loop_metrics_t;
typedef struct uv__loop_internal_fields_s uv__loop_internal_fields_t;

struct uv__loop_metrics_s {
  uv_metrics_t metrics;
  uint64_t provider_entry_time;
  uint64_t provider_idle_time;
  uv_mutex_t lock;
};

void uv__metrics_update_idle_time(uv_loop_t* loop);
void uv__metrics_set_provider_entry_time(uv_loop_t* loop);

#ifdef __linux__
struct uv__iou {
  uint32_t* sqhead;
  uint32_t* sqtail;
  uint32_t sqmask;
  uint32_t* sqflags;
  uint32_t* cqhead;
  uint32_t* cqtail;
  uint32_t cqmask;
  void* sq;   /* pointer to munmap() on event loop teardown */
  void* cqe;  /* pointer to array of struct uv__io_uring_cqe */
  void* sqe;  /* pointer to array of struct uv__io_uring_sqe */
  size_t sqlen;
  size_t cqlen;
  size_t maxlen;
  size_t sqelen;
  int ringfd;
  uint32_t in_flight;
};
#endif  /* __linux__ */

struct uv__loop_internal_fields_s {
  unsigned int flags;
  uv__loop_metrics_t loop_metrics;
  int current_timeout;
#ifdef __linux__
  struct uv__iou ctl;
  struct uv__iou iou;
  void* inv;  /* used by uv__platform_invalidate_fd() */
#endif  /* __linux__ */
};

#if defined(_WIN32)
# define UV_PTHREAD_MAX_NAMELEN_NP 32767
#elif defined(__APPLE__)
# define UV_PTHREAD_MAX_NAMELEN_NP 64
#elif defined(__NetBSD__) || defined(__illumos__)
# define UV_PTHREAD_MAX_NAMELEN_NP PTHREAD_MAX_NAMELEN_NP
#elif defined (__linux__)
# define UV_PTHREAD_MAX_NAMELEN_NP 16
#elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
# define UV_PTHREAD_MAX_NAMELEN_NP (MAXCOMLEN + 1)
#else
# define UV_PTHREAD_MAX_NAMELEN_NP 16
#endif

/* Open-coded so downstream users don't have to link libm. */
static inline int uv__isinf(double d) {
  uint64_t v;

  STATIC_ASSERT(sizeof(v) == sizeof(d));
  memcpy(&v, &d, sizeof(v));
  return (v << 1 >> 53) == 2047 && !(v << 12);
}

/* Open-coded so downstream users don't have to link libm. */
static inline int uv__isnan(double d) {
  uint64_t v;

  STATIC_ASSERT(sizeof(v) == sizeof(d));
  memcpy(&v, &d, sizeof(v));
  return (v << 1 >> 53) == 2047 && !!(v << 12);
}

#endif /* UV_COMMON_H_ */

Coverage Report

Created: 2026-07-14 07:09

Line	Count	Source
1		/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
2		*
3		* Permission is hereby granted, free of charge, to any person obtaining a copy
4		* of this software and associated documentation files (the "Software"), to
5		* deal in the Software without restriction, including without limitation the
6		* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7		* sell copies of the Software, and to permit persons to whom the Software is
8		* furnished to do so, subject to the following conditions:
9		*
10		* The above copyright notice and this permission notice shall be included in
11		* all copies or substantial portions of the Software.
12		*
13		* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14		* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15		* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16		* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17		* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18		* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19		* IN THE SOFTWARE.
20		*/
21
22		/*
23		* This file is private to libuv. It provides common functionality to both
24		* Windows and Unix backends.
25		*/
26
27		#ifndef UV_COMMON_H_
28		#define UV_COMMON_H_
29
30		#include <assert.h>
31		#include <stdarg.h>
32		#include <stddef.h>
33		#include <stdint.h>
34		#include <string.h>
35
36		#include "uv.h"
37		#include "uv/tree.h"
38		#include "queue.h"
39		#include "strscpy.h"
40
41		#ifndef _MSC_VER
42		# include <stdatomic.h>
43		#endif
44
45		#if EDOM > 0
46	0	# define UV__ERR(x) (-(x))
47		#else
48		# define UV__ERR(x) (x)
49		#endif
50
51		#if !defined(snprintf) && defined(_MSC_VER) && _MSC_VER < 1900
52		extern int snprintf(char, size_t, const char, ...);
53		#endif
54
55	0	#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
56	0	#define ARRAY_END(a) ((a) + ARRAY_SIZE(a))
57
58		#define container_of(ptr, type, member) \
59	0	((type ) ((char ) (ptr) - offsetof(type, member)))
60
61		/* C11 defines static_assert to be a macro which calls _Static_assert. */
62		#if defined(static_assert)
63	0	#define STATIC_ASSERT(expr) static_assert(expr, #expr)
64		#else
65		#define STATIC_ASSERT(expr) \
66		void uv__static_assert(int static_assert_failed[1 - 2 * !(expr)])
67		#endif
68
69		#ifdef _MSC_VER
70		#define uv__exchange_int_relaxed(p, v) \
71		InterlockedExchangeNoFence((LONG volatile*)(p), v)
72		#else
73		#define uv__exchange_int_relaxed(p, v) \
74	0	atomic_exchange_explicit((_Atomic int*)(p), v, memory_order_relaxed)
75		#endif
76
77	0	#define UV__UDP_DGRAM_MAXSIZE (64 * 1024)
78
79		/* Handle flags. Some flags are specific to Windows or UNIX. */
80		enum {
81		/* Used by all handles. */
82		UV_HANDLE_CLOSING = 0x00000001,
83		UV_HANDLE_CLOSED = 0x00000002,
84		UV_HANDLE_ACTIVE = 0x00000004,
85		UV_HANDLE_REF = 0x00000008,
86		UV_HANDLE_INTERNAL = 0x00000010,
87		UV_HANDLE_ENDGAME_QUEUED = 0x00000020,
88
89		/* Used by streams. */
90		UV_HANDLE_LISTENING = 0x00000040,
91		UV_HANDLE_CONNECTION = 0x00000080,
92		UV_HANDLE_SHUT = 0x00000200,
93		UV_HANDLE_READ_EOF = 0x00000800,
94
95		/* Used by streams and UDP handles. */
96		UV_HANDLE_READING = 0x00001000,
97		UV_HANDLE_BOUND = 0x00002000,
98		UV_HANDLE_READABLE = 0x00004000,
99		UV_HANDLE_WRITABLE = 0x00008000,
100		UV_HANDLE_READ_PENDING = 0x00010000,
101		UV_HANDLE_SYNC_BYPASS_IOCP = 0x00020000,
102		UV_HANDLE_ZERO_READ = 0x00040000,
103		UV_HANDLE_EMULATE_IOCP = 0x00080000,
104		UV_HANDLE_BLOCKING_WRITES = 0x00100000,
105		UV_HANDLE_CANCELLATION_PENDING = 0x00200000,
106
107		/* Used by uv_tcp_t and uv_udp_t handles */
108		UV_HANDLE_IPV6 = 0x00400000,
109
110		/* Only used by uv_tcp_t handles. */
111		UV_HANDLE_TCP_NODELAY = 0x01000000,
112		UV_HANDLE_TCP_KEEPALIVE = 0x02000000,
113		UV_HANDLE_TCP_SINGLE_ACCEPT = 0x04000000,
114		UV_HANDLE_TCP_ACCEPT_STATE_CHANGING = 0x08000000,
115		UV_HANDLE_SHARED_TCP_SOCKET = 0x10000000,
116
117		/* Only used by uv_udp_t handles. */
118		UV_HANDLE_UDP_PROCESSING = 0x01000000,
119		UV_HANDLE_UDP_CONNECTED = 0x02000000,
120		UV_HANDLE_UDP_RECVMMSG = 0x04000000,
121
122		/* Only used by uv_pipe_t handles. */
123		UV_HANDLE_NON_OVERLAPPED_PIPE = 0x01000000,
124		UV_HANDLE_PIPESERVER = 0x02000000,
125
126		/* Only used by uv_tty_t handles. */
127		UV_HANDLE_TTY_READABLE = 0x01000000,
128		UV_HANDLE_UNUSED0 = 0x02000000,
129		UV_HANDLE_TTY_SAVED_POSITION = 0x04000000,
130		UV_HANDLE_TTY_SAVED_ATTRIBUTES = 0x08000000,
131
132		/* Only used by uv_signal_t handles. */
133		UV_SIGNAL_ONE_SHOT_DISPATCHED = 0x01000000,
134		UV_SIGNAL_ONE_SHOT = 0x02000000,
135
136		/* Only used by uv_poll_t handles. */
137		UV_HANDLE_POLL_SLOW = 0x01000000,
138
139		/* Only used by uv_process_t handles. */
140		UV_HANDLE_REAP = 0x10000000
141		};
142
143	0	static inline int uv__is_raw_tty_mode(uv_tty_mode_t m) {
144	0	return m == UV_TTY_MODE_RAW \|\| m == UV_TTY_MODE_RAW_VT;
145	0	} Unexecuted instantiation: timer.c:uv__is_raw_tty_mode Unexecuted instantiation: uv-common.c:uv__is_raw_tty_mode Unexecuted instantiation: async.c:uv__is_raw_tty_mode Unexecuted instantiation: core.c:uv__is_raw_tty_mode Unexecuted instantiation: fs.c:uv__is_raw_tty_mode Unexecuted instantiation: loop-watcher.c:uv__is_raw_tty_mode Unexecuted instantiation: loop.c:uv__is_raw_tty_mode Unexecuted instantiation: pipe.c:uv__is_raw_tty_mode Unexecuted instantiation: poll.c:uv__is_raw_tty_mode Unexecuted instantiation: process.c:uv__is_raw_tty_mode Unexecuted instantiation: signal.c:uv__is_raw_tty_mode Unexecuted instantiation: stream.c:uv__is_raw_tty_mode Unexecuted instantiation: tcp.c:uv__is_raw_tty_mode Unexecuted instantiation: thread.c:uv__is_raw_tty_mode Unexecuted instantiation: tty.c:uv__is_raw_tty_mode Unexecuted instantiation: udp.c:uv__is_raw_tty_mode Unexecuted instantiation: linux.c:uv__is_raw_tty_mode Unexecuted instantiation: proctitle.c:uv__is_raw_tty_mode Unexecuted instantiation: fs-poll.c:uv__is_raw_tty_mode Unexecuted instantiation: inet.c:uv__is_raw_tty_mode Unexecuted instantiation: threadpool.c:uv__is_raw_tty_mode
146
147		int uv__loop_configure(uv_loop_t* loop, uv_loop_option option, va_list ap);
148
149		void uv__loop_close(uv_loop_t* loop);
150
151		int uv__read_start(uv_stream_t* stream,
152		uv_alloc_cb alloc_cb,
153		uv_read_cb read_cb);
154
155		int uv__tcp_bind(uv_tcp_t* tcp,
156		const struct sockaddr* addr,
157		unsigned int addrlen,
158		unsigned int flags);
159
160		int uv__tcp_connect(uv_connect_t* req,
161		uv_tcp_t* handle,
162		const struct sockaddr* addr,
163		unsigned int addrlen,
164		uv_connect_cb cb);
165
166		int uv__udp_init_ex(uv_loop_t* loop,
167		uv_udp_t* handle,
168		unsigned flags,
169		int domain);
170
171		int uv__udp_bind(uv_udp_t* handle,
172		const struct sockaddr* addr,
173		unsigned int addrlen,
174		unsigned int flags);
175
176		int uv__udp_connect(uv_udp_t* handle,
177		const struct sockaddr* addr,
178		unsigned int addrlen);
179
180		int uv__udp_disconnect(uv_udp_t* handle);
181
182		int uv__udp_is_connected(uv_udp_t* handle);
183
184		int uv__udp_send(uv_udp_send_t* req,
185		uv_udp_t* handle,
186		const uv_buf_t bufs[],
187		unsigned int nbufs,
188		const struct sockaddr* addr,
189		unsigned int addrlen,
190		uv_udp_send_cb send_cb);
191
192		int uv__udp_try_send(uv_udp_t* handle,
193		const uv_buf_t bufs[],
194		unsigned int nbufs,
195		const struct sockaddr* addr,
196		unsigned int addrlen);
197
198		int uv__udp_try_send2(uv_udp_t* handle,
199		unsigned int count,
200		uv_buf_t* bufs[/count/],
201		unsigned int nbufs[/count/],
202		struct sockaddr* addrs[/count/]);
203
204		int uv__udp_recv_start(uv_udp_t* handle, uv_alloc_cb alloccb,
205		uv_udp_recv_cb recv_cb);
206
207		int uv__udp_recv_stop(uv_udp_t* handle);
208
209		void uv__fs_poll_close(uv_fs_poll_t* handle);
210
211		int uv__getaddrinfo_translate_error(int sys_err); /* EAI_* error. */
212
213		enum uv__work_kind {
214		UV__WORK_CPU,
215		UV__WORK_FAST_IO,
216		UV__WORK_SLOW_IO
217		};
218
219		void uv__work_submit(uv_loop_t* loop,
220		struct uv__work *w,
221		enum uv__work_kind kind,
222		void (work)(struct uv__work w),
223		void (done)(struct uv__work w, int status));
224
225		void uv__work_done(uv_async_t* handle);
226
227		size_t uv__count_bufs(const uv_buf_t bufs[], unsigned int nbufs);
228
229		int uv__socket_sockopt(uv_handle_t* handle, int optname, int* value);
230
231		void uv__fs_scandir_cleanup(uv_fs_t* req);
232		void uv__fs_readdir_cleanup(uv_fs_t* req);
233		uv_dirent_type_t uv__fs_get_dirent_type(uv__dirent_t* dent);
234
235		int uv__next_timeout(const uv_loop_t* loop);
236		void uv__run_timers(uv_loop_t* loop);
237		void uv__timer_close(uv_timer_t* handle);
238
239		void uv__process_title_cleanup(void);
240		void uv__signal_cleanup(void);
241		void uv__threadpool_cleanup(void);
242
243		#define uv__has_active_reqs(loop) \
244	0	((loop)->active_reqs.count > 0)
245
246		#define uv__req_register(loop) \
247	0	do { \
248	0	(loop)->active_reqs.count++; \
249	0	} \
250	0	while (0)
251
252		#define uv__req_unregister(loop) \
253	0	do { \
254	0	assert(uv__has_active_reqs(loop)); \
255	0	(loop)->active_reqs.count--; \
256	0	} \
257	0	while (0)
258
259		#define uv__has_active_handles(loop) \
260	0	((loop)->active_handles > 0)
261
262		#define uv__active_handle_add(h) \
263	0	do { \
264	0	(h)->loop->active_handles++; \
265	0	} \
266	0	while (0)
267
268		#define uv__active_handle_rm(h) \
269	0	do { \
270	0	(h)->loop->active_handles--; \
271	0	} \
272	0	while (0)
273
274		#define uv__is_active(h) \
275	0	(((h)->flags & UV_HANDLE_ACTIVE) != 0)
276
277		#define uv__is_closing(h) \
278	0	(((h)->flags & (UV_HANDLE_CLOSING \| UV_HANDLE_CLOSED)) != 0)
279
280		#if defined(_WIN32)
281		# define uv__is_stream_shutting(h) \
282		(h->stream.conn.shutdown_req != NULL)
283		#else
284		# define uv__is_stream_shutting(h) \
285	0	(h->shutdown_req != NULL)
286		#endif
287
288		#define uv__handle_start(h) \
289	0	do { \
290	0	if (((h)->flags & UV_HANDLE_ACTIVE) != 0) break; \
291	0	(h)->flags \|= UV_HANDLE_ACTIVE; \
292	0	if (((h)->flags & UV_HANDLE_REF) != 0) uv__active_handle_add(h); \
293	0	} \
294	0	while (0)
295
296		#define uv__handle_stop(h) \
297	0	do { \
298	0	if (((h)->flags & UV_HANDLE_ACTIVE) == 0) break; \
299	0	(h)->flags &= ~UV_HANDLE_ACTIVE; \
300	0	if (((h)->flags & UV_HANDLE_REF) != 0) uv__active_handle_rm(h); \
301	0	} \
302	0	while (0)
303
304		#define uv__handle_ref(h) \
305	0	do { \
306	0	if (((h)->flags & UV_HANDLE_REF) != 0) break; \
307	0	(h)->flags \|= UV_HANDLE_REF; \
308	0	if (((h)->flags & UV_HANDLE_CLOSING) != 0) break; \
309	0	if (((h)->flags & UV_HANDLE_ACTIVE) != 0) uv__active_handle_add(h); \
310	0	} \
311	0	while (0)
312
313		#define uv__handle_unref(h) \
314	0	do { \
315	0	if (((h)->flags & UV_HANDLE_REF) == 0) break; \
316	0	(h)->flags &= ~UV_HANDLE_REF; \
317	0	if (((h)->flags & UV_HANDLE_CLOSING) != 0) break; \
318	0	if (((h)->flags & UV_HANDLE_ACTIVE) != 0) uv__active_handle_rm(h); \
319	0	} \
320	0	while (0)
321
322		#define uv__has_ref(h) \
323	0	(((h)->flags & UV_HANDLE_REF) != 0)
324
325		#if defined(_WIN32)
326		# define uv__handle_platform_init(h) ((h)->u.fd = -1)
327		#else
328	0	# define uv__handle_platform_init(h) ((h)->next_closing = NULL)
329		#endif
330
331		#define uv__handle_init(loop_, h, type_) \
332	0	do { \
333	0	(h)->loop = (loop_); \
334	0	(h)->type = (type_); \
335	0	(h)->flags = UV_HANDLE_REF; /* Ref the loop when active. */ \
336	0	uv__queue_insert_tail(&(loop_)->handle_queue, &(h)->handle_queue); \
337	0	uv__handle_platform_init(h); \
338	0	} \
339	0	while (0)
340
341		/* Note: uses an open-coded version of SET_REQ_SUCCESS() because of
342		* a circular dependency between src/uv-common.h and src/win/internal.h.
343		*/
344		#if defined(_WIN32)
345		# define UV_REQ_INIT(req, typ) \
346		do { \
347		(req)->type = (typ); \
348		(req)->u.io.overlapped.Internal = 0; /* SET_REQ_SUCCESS() */ \
349		} \
350		while (0)
351		#else
352		# define UV_REQ_INIT(req, typ) \
353	0	do { \
354	0	(req)->type = (typ); \
355	0	} \
356	0	while (0)
357		#endif
358
359		#define uv__req_init(loop, req, typ) \
360	0	do { \
361	0	UV_REQ_INIT(req, typ); \
362	0	uv__req_register(loop); \
363	0	} \
364	0	while (0)
365
366		#define uv__get_internal_fields(loop) \
367	0	((uv__loop_internal_fields_t*) loop->internal_fields)
368
369		#define uv__get_loop_metrics(loop) \
370	0	(&uv__get_internal_fields(loop)->loop_metrics)
371
372		#define uv__metrics_inc_loop_count(loop) \
373	0	do { \
374	0	uv__get_loop_metrics(loop)->metrics.loop_count++; \
375	0	} while (0)
376
377		#define uv__metrics_inc_events(loop, e) \
378	0	do { \
379	0	uv__get_loop_metrics(loop)->metrics.events += (e); \
380	0	} while (0)
381
382		#define uv__metrics_inc_events_waiting(loop, e) \
383	0	do { \
384	0	uv__get_loop_metrics(loop)->metrics.events_waiting += (e); \
385	0	} while (0)
386
387		/* Allocator prototypes */
388		void *uv__calloc(size_t count, size_t size);
389		char uv__strdup(const char s);
390		char uv__strndup(const char s, size_t n);
391		void* uv__malloc(size_t size);
392		void uv__free(void* ptr);
393		void* uv__realloc(void* ptr, size_t size);
394		void* uv__reallocf(void* ptr, size_t size);
395
396		typedef struct uv__loop_metrics_s uv__loop_metrics_t;
397		typedef struct uv__loop_internal_fields_s uv__loop_internal_fields_t;
398
399		struct uv__loop_metrics_s {
400		uv_metrics_t metrics;
401		uint64_t provider_entry_time;
402		uint64_t provider_idle_time;
403		uv_mutex_t lock;
404		};
405
406		void uv__metrics_update_idle_time(uv_loop_t* loop);
407		void uv__metrics_set_provider_entry_time(uv_loop_t* loop);
408
409		#ifdef __linux__
410		struct uv__iou {
411		uint32_t* sqhead;
412		uint32_t* sqtail;
413		uint32_t sqmask;
414		uint32_t* sqflags;
415		uint32_t* cqhead;
416		uint32_t* cqtail;
417		uint32_t cqmask;
418		void* sq; /* pointer to munmap() on event loop teardown */
419		void* cqe; /* pointer to array of struct uv__io_uring_cqe */
420		void* sqe; /* pointer to array of struct uv__io_uring_sqe */
421		size_t sqlen;
422		size_t cqlen;
423		size_t maxlen;
424		size_t sqelen;
425		int ringfd;
426		uint32_t in_flight;
427		};
428		#endif /* __linux__ */
429
430		struct uv__loop_internal_fields_s {
431		unsigned int flags;
432		uv__loop_metrics_t loop_metrics;
433		int current_timeout;
434		#ifdef __linux__
435		struct uv__iou ctl;
436		struct uv__iou iou;
437		void* inv; /* used by uv__platform_invalidate_fd() */
438		#endif /* __linux__ */
439		};
440
441		#if defined(_WIN32)
442		# define UV_PTHREAD_MAX_NAMELEN_NP 32767
443		#elif defined(__APPLE__)
444		# define UV_PTHREAD_MAX_NAMELEN_NP 64
445		#elif defined(__NetBSD__) \|\| defined(__illumos__)
446		# define UV_PTHREAD_MAX_NAMELEN_NP PTHREAD_MAX_NAMELEN_NP
447		#elif defined (__linux__)
448		# define UV_PTHREAD_MAX_NAMELEN_NP 16
449		#elif defined(__FreeBSD__) \|\| defined(__OpenBSD__) \|\| defined(__DragonFly__)
450		# define UV_PTHREAD_MAX_NAMELEN_NP (MAXCOMLEN + 1)
451		#else
452		# define UV_PTHREAD_MAX_NAMELEN_NP 16
453		#endif
454
455		/* Open-coded so downstream users don't have to link libm. */
456	0	static inline int uv__isinf(double d) {
457	0	uint64_t v;
458
459	0	STATIC_ASSERT(sizeof(v) == sizeof(d));
460	0	memcpy(&v, &d, sizeof(v));
461	0	return (v << 1 >> 53) == 2047 && !(v << 12);
462	0	} Unexecuted instantiation: timer.c:uv__isinf Unexecuted instantiation: uv-common.c:uv__isinf Unexecuted instantiation: async.c:uv__isinf Unexecuted instantiation: core.c:uv__isinf Unexecuted instantiation: fs.c:uv__isinf Unexecuted instantiation: loop-watcher.c:uv__isinf Unexecuted instantiation: loop.c:uv__isinf Unexecuted instantiation: pipe.c:uv__isinf Unexecuted instantiation: poll.c:uv__isinf Unexecuted instantiation: process.c:uv__isinf Unexecuted instantiation: signal.c:uv__isinf Unexecuted instantiation: stream.c:uv__isinf Unexecuted instantiation: tcp.c:uv__isinf Unexecuted instantiation: thread.c:uv__isinf Unexecuted instantiation: tty.c:uv__isinf Unexecuted instantiation: udp.c:uv__isinf Unexecuted instantiation: linux.c:uv__isinf Unexecuted instantiation: proctitle.c:uv__isinf Unexecuted instantiation: fs-poll.c:uv__isinf Unexecuted instantiation: inet.c:uv__isinf Unexecuted instantiation: threadpool.c:uv__isinf
463
464		/* Open-coded so downstream users don't have to link libm. */
465	0	static inline int uv__isnan(double d) {
466	0	uint64_t v;
467
468	0	STATIC_ASSERT(sizeof(v) == sizeof(d));
469	0	memcpy(&v, &d, sizeof(v));
470	0	return (v << 1 >> 53) == 2047 && !!(v << 12);
471	0	} Unexecuted instantiation: timer.c:uv__isnan Unexecuted instantiation: uv-common.c:uv__isnan Unexecuted instantiation: async.c:uv__isnan Unexecuted instantiation: core.c:uv__isnan Unexecuted instantiation: fs.c:uv__isnan Unexecuted instantiation: loop-watcher.c:uv__isnan Unexecuted instantiation: loop.c:uv__isnan Unexecuted instantiation: pipe.c:uv__isnan Unexecuted instantiation: poll.c:uv__isnan Unexecuted instantiation: process.c:uv__isnan Unexecuted instantiation: signal.c:uv__isnan Unexecuted instantiation: stream.c:uv__isnan Unexecuted instantiation: tcp.c:uv__isnan Unexecuted instantiation: thread.c:uv__isnan Unexecuted instantiation: tty.c:uv__isnan Unexecuted instantiation: udp.c:uv__isnan Unexecuted instantiation: linux.c:uv__isnan Unexecuted instantiation: proctitle.c:uv__isnan Unexecuted instantiation: fs-poll.c:uv__isnan Unexecuted instantiation: inet.c:uv__isnan Unexecuted instantiation: threadpool.c:uv__isnan
472
473		#endif /* UV_COMMON_H_ */