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Diffstat (limited to 'libs/tgl/libevent/util-internal.h')
| -rw-r--r-- | libs/tgl/libevent/util-internal.h | 479 |
1 files changed, 0 insertions, 479 deletions
diff --git a/libs/tgl/libevent/util-internal.h b/libs/tgl/libevent/util-internal.h deleted file mode 100644 index 06aa97299a..0000000000 --- a/libs/tgl/libevent/util-internal.h +++ /dev/null @@ -1,479 +0,0 @@ -/* - * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -#ifndef UTIL_INTERNAL_H_INCLUDED_ -#define UTIL_INTERNAL_H_INCLUDED_ - -#include "event2/event-config.h" -#include "evconfig-private.h" - -#include <errno.h> - -/* For EVUTIL_ASSERT */ -#include "log-internal.h" -#include <stdio.h> -#include <stdlib.h> -#ifdef EVENT__HAVE_SYS_SOCKET_H -#include <sys/socket.h> -#endif -#ifdef EVENT__HAVE_SYS_EVENTFD_H -#include <sys/eventfd.h> -#endif -#include "event2/util.h" - -#include "time-internal.h" -#include "ipv6-internal.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* If we need magic to say "inline", get it for free internally. */ -#ifdef EVENT__inline -#define inline EVENT__inline -#endif -#ifdef EVENT____func__ -#define __func__ EVENT____func__ -#endif - -/* A good no-op to use in macro definitions. */ -#define EVUTIL_NIL_STMT_ ((void)0) -/* A no-op that tricks the compiler into thinking a condition is used while - * definitely not making any code for it. Used to compile out asserts while - * avoiding "unused variable" warnings. The "!" forces the compiler to - * do the sizeof() on an int, in case "condition" is a bitfield value. - */ -#define EVUTIL_NIL_CONDITION_(condition) do { \ - (void)sizeof(!(condition)); \ -} while(0) - -/* Internal use only: macros to match patterns of error codes in a - cross-platform way. We need these macros because of two historical - reasons: first, nonblocking IO functions are generally written to give an - error on the "blocked now, try later" case, so sometimes an error from a - read, write, connect, or accept means "no error; just wait for more - data," and we need to look at the error code. Second, Windows defines - a different set of error codes for sockets. */ - -#ifndef _WIN32 - -#if EAGAIN == EWOULDBLOCK -#define EVUTIL_ERR_IS_EAGAIN(e) \ - ((e) == EAGAIN) -#else -#define EVUTIL_ERR_IS_EAGAIN(e) \ - ((e) == EAGAIN || (e) == EWOULDBLOCK) -#endif - -/* True iff e is an error that means a read/write operation can be retried. */ -#define EVUTIL_ERR_RW_RETRIABLE(e) \ - ((e) == EINTR || EVUTIL_ERR_IS_EAGAIN(e)) -/* True iff e is an error that means an connect can be retried. */ -#define EVUTIL_ERR_CONNECT_RETRIABLE(e) \ - ((e) == EINTR || (e) == EINPROGRESS) -/* True iff e is an error that means a accept can be retried. */ -#define EVUTIL_ERR_ACCEPT_RETRIABLE(e) \ - ((e) == EINTR || EVUTIL_ERR_IS_EAGAIN(e) || (e) == ECONNABORTED) - -/* True iff e is an error that means the connection was refused */ -#define EVUTIL_ERR_CONNECT_REFUSED(e) \ - ((e) == ECONNREFUSED) - -#else -/* Win32 */ - -#define EVUTIL_ERR_IS_EAGAIN(e) \ - ((e) == WSAEWOULDBLOCK || (e) == EAGAIN) - -#define EVUTIL_ERR_RW_RETRIABLE(e) \ - ((e) == WSAEWOULDBLOCK || \ - (e) == WSAEINTR) - -#define EVUTIL_ERR_CONNECT_RETRIABLE(e) \ - ((e) == WSAEWOULDBLOCK || \ - (e) == WSAEINTR || \ - (e) == WSAEINPROGRESS || \ - (e) == WSAEINVAL) - -#define EVUTIL_ERR_ACCEPT_RETRIABLE(e) \ - EVUTIL_ERR_RW_RETRIABLE(e) - -#define EVUTIL_ERR_CONNECT_REFUSED(e) \ - ((e) == WSAECONNREFUSED) - -#endif - -/* Arguments for shutdown() */ -#ifdef SHUT_RD -#define EVUTIL_SHUT_RD SHUT_RD -#else -#define EVUTIL_SHUT_RD 0 -#endif -#ifdef SHUT_WR -#define EVUTIL_SHUT_WR SHUT_WR -#else -#define EVUTIL_SHUT_WR 1 -#endif -#ifdef SHUT_BOTH -#define EVUTIL_SHUT_BOTH SHUT_BOTH -#else -#define EVUTIL_SHUT_BOTH 2 -#endif - -/* Helper: Verify that all the elements in 'dlist' are internally consistent. - * Checks for circular lists and bad prev/next pointers. - * - * Example usage: - * EVUTIL_ASSERT_LIST_OK(eventlist, event, ev_next); - */ -#define EVUTIL_ASSERT_LIST_OK(dlist, type, field) do { \ - struct type *elm1, *elm2, **nextp; \ - if (LIST_EMPTY((dlist))) \ - break; \ - \ - /* Check list for circularity using Floyd's */ \ - /* 'Tortoise and Hare' algorithm */ \ - elm1 = LIST_FIRST((dlist)); \ - elm2 = LIST_NEXT(elm1, field); \ - while (elm1 && elm2) { \ - EVUTIL_ASSERT(elm1 != elm2); \ - elm1 = LIST_NEXT(elm1, field); \ - elm2 = LIST_NEXT(elm2, field); \ - if (!elm2) \ - break; \ - EVUTIL_ASSERT(elm1 != elm2); \ - elm2 = LIST_NEXT(elm2, field); \ - } \ - \ - /* Now check next and prev pointers for consistency. */ \ - nextp = &LIST_FIRST((dlist)); \ - elm1 = LIST_FIRST((dlist)); \ - while (elm1) { \ - EVUTIL_ASSERT(*nextp == elm1); \ - EVUTIL_ASSERT(nextp == elm1->field.le_prev); \ - nextp = &LIST_NEXT(elm1, field); \ - elm1 = *nextp; \ - } \ - } while (0) - -/* Helper: Verify that all the elements in a TAILQ are internally consistent. - * Checks for circular lists and bad prev/next pointers. - * - * Example usage: - * EVUTIL_ASSERT_TAILQ_OK(activelist, event, ev_active_next); - */ -#define EVUTIL_ASSERT_TAILQ_OK(tailq, type, field) do { \ - struct type *elm1, *elm2, **nextp; \ - if (TAILQ_EMPTY((tailq))) \ - break; \ - \ - /* Check list for circularity using Floyd's */ \ - /* 'Tortoise and Hare' algorithm */ \ - elm1 = TAILQ_FIRST((tailq)); \ - elm2 = TAILQ_NEXT(elm1, field); \ - while (elm1 && elm2) { \ - EVUTIL_ASSERT(elm1 != elm2); \ - elm1 = TAILQ_NEXT(elm1, field); \ - elm2 = TAILQ_NEXT(elm2, field); \ - if (!elm2) \ - break; \ - EVUTIL_ASSERT(elm1 != elm2); \ - elm2 = TAILQ_NEXT(elm2, field); \ - } \ - \ - /* Now check next and prev pointers for consistency. */ \ - nextp = &TAILQ_FIRST((tailq)); \ - elm1 = TAILQ_FIRST((tailq)); \ - while (elm1) { \ - EVUTIL_ASSERT(*nextp == elm1); \ - EVUTIL_ASSERT(nextp == elm1->field.tqe_prev); \ - nextp = &TAILQ_NEXT(elm1, field); \ - elm1 = *nextp; \ - } \ - EVUTIL_ASSERT(nextp == (tailq)->tqh_last); \ - } while (0) - -/* Locale-independent replacements for some ctypes functions. Use these - * when you care about ASCII's notion of character types, because you are about - * to send those types onto the wire. - */ -int EVUTIL_ISALPHA_(char c); -int EVUTIL_ISALNUM_(char c); -int EVUTIL_ISSPACE_(char c); -int EVUTIL_ISDIGIT_(char c); -int EVUTIL_ISXDIGIT_(char c); -int EVUTIL_ISPRINT_(char c); -int EVUTIL_ISLOWER_(char c); -int EVUTIL_ISUPPER_(char c); -char EVUTIL_TOUPPER_(char c); -char EVUTIL_TOLOWER_(char c); - -/** Remove all trailing horizontal whitespace (space or tab) from the end of a - * string */ -void evutil_rtrim_lws_(char *); - - -/** Helper macro. If we know that a given pointer points to a field in a - structure, return a pointer to the structure itself. Used to implement - our half-baked C OO. Example: - - struct subtype { - int x; - struct supertype common; - int y; - }; - ... - void fn(struct supertype *super) { - struct subtype *sub = EVUTIL_UPCAST(super, struct subtype, common); - ... - } - */ -#define EVUTIL_UPCAST(ptr, type, field) \ - ((type *)(((char*)(ptr)) - evutil_offsetof(type, field))) - -/* As open(pathname, flags, mode), except that the file is always opened with - * the close-on-exec flag set. (And the mode argument is mandatory.) - */ -int evutil_open_closeonexec_(const char *pathname, int flags, unsigned mode); - -int evutil_read_file_(const char *filename, char **content_out, size_t *len_out, - int is_binary); - -int evutil_socket_connect_(evutil_socket_t *fd_ptr, const struct sockaddr *sa, int socklen); - -int evutil_socket_finished_connecting_(evutil_socket_t fd); - -int evutil_ersatz_socketpair_(int, int , int, evutil_socket_t[]); - -int evutil_resolve_(int family, const char *hostname, struct sockaddr *sa, - ev_socklen_t *socklen, int port); - -const char *evutil_getenv_(const char *name); - -/* Structure to hold the state of our weak random number generator. - */ -struct evutil_weakrand_state { - ev_uint32_t seed; -}; - -#define EVUTIL_WEAKRAND_MAX EV_INT32_MAX - -/* Initialize the state of a week random number generator based on 'seed'. If - * the seed is 0, construct a new seed based on not-very-strong platform - * entropy, like the PID and the time of day. - * - * This function, and the other evutil_weakrand* functions, are meant for - * speed, not security or statistical strength. If you need a RNG which an - * attacker can't predict, or which passes strong statistical tests, use the - * evutil_secure_rng* functions instead. - */ -ev_uint32_t evutil_weakrand_seed_(struct evutil_weakrand_state *state, ev_uint32_t seed); -/* Return a pseudorandom value between 0 and EVUTIL_WEAKRAND_MAX inclusive. - * Updates the state in 'seed' as needed -- this value must be protected by a - * lock. - */ -ev_int32_t evutil_weakrand_(struct evutil_weakrand_state *seed); -/* Return a pseudorandom value x such that 0 <= x < top. top must be no more - * than EVUTIL_WEAKRAND_MAX. Updates the state in 'seed' as needed -- this - * value must be proteced by a lock */ -ev_int32_t evutil_weakrand_range_(struct evutil_weakrand_state *seed, ev_int32_t top); - -/* Evaluates to the same boolean value as 'p', and hints to the compiler that - * we expect this value to be false. */ -#if defined(__GNUC__) && __GNUC__ >= 3 /* gcc 3.0 or later */ -#define EVUTIL_UNLIKELY(p) __builtin_expect(!!(p),0) -#else -#define EVUTIL_UNLIKELY(p) (p) -#endif - -/* Replacement for assert() that calls event_errx on failure. */ -#ifdef NDEBUG -#define EVUTIL_ASSERT(cond) EVUTIL_NIL_CONDITION_(cond) -#define EVUTIL_FAILURE_CHECK(cond) 0 -#else -#define EVUTIL_ASSERT(cond) \ - do { \ - if (EVUTIL_UNLIKELY(!(cond))) { \ - event_errx(EVENT_ERR_ABORT_, \ - "%s:%d: Assertion %s failed in %s", \ - __FILE__,__LINE__,#cond,__func__); \ - /* In case a user-supplied handler tries to */ \ - /* return control to us, log and abort here. */ \ - (void)fprintf(stderr, \ - "%s:%d: Assertion %s failed in %s", \ - __FILE__,__LINE__,#cond,__func__); \ - abort(); \ - } \ - } while (0) -#define EVUTIL_FAILURE_CHECK(cond) EVUTIL_UNLIKELY(cond) -#endif - -#ifndef EVENT__HAVE_STRUCT_SOCKADDR_STORAGE -/* Replacement for sockaddr storage that we can use internally on platforms - * that lack it. It is not space-efficient, but neither is sockaddr_storage. - */ -struct sockaddr_storage { - union { - struct sockaddr ss_sa; - struct sockaddr_in ss_sin; - struct sockaddr_in6 ss_sin6; - char ss_padding[128]; - } ss_union; -}; -#define ss_family ss_union.ss_sa.sa_family -#endif - -/* Internal addrinfo error code. This one is returned from only from - * evutil_getaddrinfo_common_, when we are sure that we'll have to hit a DNS - * server. */ -#define EVUTIL_EAI_NEED_RESOLVE -90002 - -struct evdns_base; -struct evdns_getaddrinfo_request; -typedef struct evdns_getaddrinfo_request* (*evdns_getaddrinfo_fn)( - struct evdns_base *base, - const char *nodename, const char *servname, - const struct evutil_addrinfo *hints_in, - void (*cb)(int, struct evutil_addrinfo *, void *), void *arg); - -void evutil_set_evdns_getaddrinfo_fn_(evdns_getaddrinfo_fn fn); - -struct evutil_addrinfo *evutil_new_addrinfo_(struct sockaddr *sa, - ev_socklen_t socklen, const struct evutil_addrinfo *hints); -struct evutil_addrinfo *evutil_addrinfo_append_(struct evutil_addrinfo *first, - struct evutil_addrinfo *append); -void evutil_adjust_hints_for_addrconfig_(struct evutil_addrinfo *hints); -int evutil_getaddrinfo_common_(const char *nodename, const char *servname, - struct evutil_addrinfo *hints, struct evutil_addrinfo **res, int *portnum); - -int evutil_getaddrinfo_async_(struct evdns_base *dns_base, - const char *nodename, const char *servname, - const struct evutil_addrinfo *hints_in, - void (*cb)(int, struct evutil_addrinfo *, void *), void *arg); - -/** Return true iff sa is a looback address. (That is, it is 127.0.0.1/8, or - * ::1). */ -int evutil_sockaddr_is_loopback_(const struct sockaddr *sa); - - -/** - Formats a sockaddr sa into a string buffer of size outlen stored in out. - Returns a pointer to out. Always writes something into out, so it's safe - to use the output of this function without checking it for NULL. - */ -const char *evutil_format_sockaddr_port_(const struct sockaddr *sa, char *out, size_t outlen); - -int evutil_hex_char_to_int_(char c); - - -void evutil_free_secure_rng_globals_(void); -void evutil_free_globals_(void); - -#ifdef _WIN32 -HMODULE evutil_load_windows_system_library_(const TCHAR *library_name); -#endif - -#ifndef EV_SIZE_FMT -#if defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__) -#define EV_U64_FMT "%I64u" -#define EV_I64_FMT "%I64d" -#define EV_I64_ARG(x) ((__int64)(x)) -#define EV_U64_ARG(x) ((unsigned __int64)(x)) -#else -#define EV_U64_FMT "%llu" -#define EV_I64_FMT "%lld" -#define EV_I64_ARG(x) ((long long)(x)) -#define EV_U64_ARG(x) ((unsigned long long)(x)) -#endif -#endif - -#ifdef _WIN32 -#define EV_SOCK_FMT EV_I64_FMT -#define EV_SOCK_ARG(x) EV_I64_ARG((x)) -#else -#define EV_SOCK_FMT "%d" -#define EV_SOCK_ARG(x) (x) -#endif - -#if defined(__STDC__) && defined(__STDC_VERSION__) && !defined(__MINGW64_VERSION_MAJOR) -#if (__STDC_VERSION__ >= 199901L) -#define EV_SIZE_FMT "%zu" -#define EV_SSIZE_FMT "%zd" -#define EV_SIZE_ARG(x) (x) -#define EV_SSIZE_ARG(x) (x) -#endif -#endif - -#ifndef EV_SIZE_FMT -#if (EVENT__SIZEOF_SIZE_T <= EVENT__SIZEOF_LONG) -#define EV_SIZE_FMT "%lu" -#define EV_SSIZE_FMT "%ld" -#define EV_SIZE_ARG(x) ((unsigned long)(x)) -#define EV_SSIZE_ARG(x) ((long)(x)) -#else -#define EV_SIZE_FMT EV_U64_FMT -#define EV_SSIZE_FMT EV_I64_FMT -#define EV_SIZE_ARG(x) EV_U64_ARG(x) -#define EV_SSIZE_ARG(x) EV_I64_ARG(x) -#endif -#endif - -evutil_socket_t evutil_socket_(int domain, int type, int protocol); -evutil_socket_t evutil_accept4_(evutil_socket_t sockfd, struct sockaddr *addr, - ev_socklen_t *addrlen, int flags); - - /* used by one of the test programs.. */ -EVENT2_EXPORT_SYMBOL -int evutil_make_internal_pipe_(evutil_socket_t fd[2]); -evutil_socket_t evutil_eventfd_(unsigned initval, int flags); - -#ifdef SOCK_NONBLOCK -#define EVUTIL_SOCK_NONBLOCK SOCK_NONBLOCK -#else -#define EVUTIL_SOCK_NONBLOCK 0x4000000 -#endif -#ifdef SOCK_CLOEXEC -#define EVUTIL_SOCK_CLOEXEC SOCK_CLOEXEC -#else -#define EVUTIL_SOCK_CLOEXEC 0x80000000 -#endif -#ifdef EFD_NONBLOCK -#define EVUTIL_EFD_NONBLOCK EFD_NONBLOCK -#else -#define EVUTIL_EFD_NONBLOCK 0x4000 -#endif -#ifdef EFD_CLOEXEC -#define EVUTIL_EFD_CLOEXEC EFD_CLOEXEC -#else -#define EVUTIL_EFD_CLOEXEC 0x8000 -#endif - -void evutil_memclear_(void *mem, size_t len); - -#ifdef __cplusplus -} -#endif - -#endif |