26 #ifndef _EVENT2_UTIL_H_
27 #define _EVENT2_UTIL_H_
40 #include <event2/event-config.h>
41 #ifdef _EVENT_HAVE_SYS_TIME_H
44 #ifdef _EVENT_HAVE_STDINT_H
46 #elif defined(_EVENT_HAVE_INTTYPES_H)
49 #ifdef _EVENT_HAVE_SYS_TYPES_H
50 #include <sys/types.h>
52 #ifdef _EVENT_HAVE_STDDEF_H
59 #ifdef _EVENT_HAVE_NETDB_H
60 #if !defined(_GNU_SOURCE)
69 #include <sys/socket.h>
73 #if defined(_EVENT_SIZEOF_VOID__) && !defined(_EVENT_SIZEOF_VOID_P)
74 #define _EVENT_SIZEOF_VOID_P _EVENT_SIZEOF_VOID__
106 #ifdef _EVENT_HAVE_UINT64_T
107 #define ev_uint64_t uint64_t
108 #define ev_int64_t int64_t
110 #define ev_uint64_t unsigned __int64
111 #define ev_int64_t signed __int64
112 #elif _EVENT_SIZEOF_LONG_LONG == 8
113 #define ev_uint64_t unsigned long long
114 #define ev_int64_t long long
115 #elif _EVENT_SIZEOF_LONG == 8
116 #define ev_uint64_t unsigned long
117 #define ev_int64_t long
118 #elif defined(_EVENT_IN_DOXYGEN)
119 #define ev_uint64_t ...
120 #define ev_int64_t ...
122 #error "No way to define ev_uint64_t"
125 #ifdef _EVENT_HAVE_UINT32_T
126 #define ev_uint32_t uint32_t
127 #define ev_int32_t int32_t
129 #define ev_uint32_t unsigned int
130 #define ev_int32_t signed int
131 #elif _EVENT_SIZEOF_LONG == 4
132 #define ev_uint32_t unsigned long
133 #define ev_int32_t signed long
134 #elif _EVENT_SIZEOF_INT == 4
135 #define ev_uint32_t unsigned int
136 #define ev_int32_t signed int
137 #elif defined(_EVENT_IN_DOXYGEN)
138 #define ev_uint32_t ...
139 #define ev_int32_t ...
141 #error "No way to define ev_uint32_t"
144 #ifdef _EVENT_HAVE_UINT16_T
145 #define ev_uint16_t uint16_t
146 #define ev_int16_t int16_t
148 #define ev_uint16_t unsigned short
149 #define ev_int16_t signed short
150 #elif _EVENT_SIZEOF_INT == 2
151 #define ev_uint16_t unsigned int
152 #define ev_int16_t signed int
153 #elif _EVENT_SIZEOF_SHORT == 2
154 #define ev_uint16_t unsigned short
155 #define ev_int16_t signed short
156 #elif defined(_EVENT_IN_DOXYGEN)
157 #define ev_uint16_t ...
158 #define ev_int16_t ...
160 #error "No way to define ev_uint16_t"
163 #ifdef _EVENT_HAVE_UINT8_T
164 #define ev_uint8_t uint8_t
165 #define ev_int8_t int8_t
166 #elif defined(_EVENT_IN_DOXYGEN)
167 #define ev_uint8_t ...
168 #define ev_int8_t ...
170 #define ev_uint8_t unsigned char
171 #define ev_int8_t signed char
174 #ifdef _EVENT_HAVE_UINTPTR_T
175 #define ev_uintptr_t uintptr_t
176 #define ev_intptr_t intptr_t
177 #elif _EVENT_SIZEOF_VOID_P <= 4
178 #define ev_uintptr_t ev_uint32_t
179 #define ev_intptr_t ev_int32_t
180 #elif _EVENT_SIZEOF_VOID_P <= 8
181 #define ev_uintptr_t ev_uint64_t
182 #define ev_intptr_t ev_int64_t
183 #elif defined(_EVENT_IN_DOXYGEN)
184 #define ev_uintptr_t ...
185 #define ev_intptr_t ...
187 #error "No way to define ev_uintptr_t"
190 #ifdef _EVENT_ssize_t
191 #define ev_ssize_t _EVENT_ssize_t
193 #define ev_ssize_t ssize_t
197 #define ev_off_t ev_int64_t
199 #define ev_off_t off_t
218 #define EV_UINT64_MAX ((((ev_uint64_t)0xffffffffUL) << 32) | 0xffffffffUL)
219 #define EV_INT64_MAX ((((ev_int64_t) 0x7fffffffL) << 32) | 0xffffffffL)
220 #define EV_INT64_MIN ((-EV_INT64_MAX) - 1)
221 #define EV_UINT32_MAX ((ev_uint32_t)0xffffffffUL)
222 #define EV_INT32_MAX ((ev_int32_t) 0x7fffffffL)
223 #define EV_INT32_MIN ((-EV_INT32_MAX) - 1)
224 #define EV_UINT16_MAX ((ev_uint16_t)0xffffUL)
225 #define EV_INT16_MAX ((ev_int16_t) 0x7fffL)
226 #define EV_INT16_MIN ((-EV_INT16_MAX) - 1)
227 #define EV_UINT8_MAX 255
228 #define EV_INT8_MAX 127
229 #define EV_INT8_MIN ((-EV_INT8_MAX) - 1)
237 #if _EVENT_SIZEOF_SIZE_T == 8
238 #define EV_SIZE_MAX EV_UINT64_MAX
239 #define EV_SSIZE_MAX EV_INT64_MAX
240 #elif _EVENT_SIZEOF_SIZE_T == 4
241 #define EV_SIZE_MAX EV_UINT32_MAX
242 #define EV_SSIZE_MAX EV_INT32_MAX
243 #elif defined(_EVENT_IN_DOXYGEN)
244 #define EV_SIZE_MAX ...
245 #define EV_SSIZE_MAX ...
247 #error "No way to define SIZE_MAX"
250 #define EV_SSIZE_MIN ((-EV_SSIZE_MAX) - 1)
254 #define ev_socklen_t int
255 #elif defined(_EVENT_socklen_t)
256 #define ev_socklen_t _EVENT_socklen_t
258 #define ev_socklen_t socklen_t
261 #ifdef _EVENT_HAVE_STRUCT_SOCKADDR_STORAGE___SS_FAMILY
262 #if !defined(_EVENT_HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY) \
263 && !defined(ss_family)
264 #define ss_family __ss_family
272 #define evutil_socket_t intptr_t
274 #define evutil_socket_t int
324 #define EVUTIL_CLOSESOCKET(s) evutil_closesocket(s)
329 #define EVUTIL_SOCKET_ERROR() WSAGetLastError()
331 #define EVUTIL_SET_SOCKET_ERROR(errcode) \
332 do { WSASetLastError(errcode); } while (0)
337 #elif defined(_EVENT_IN_DOXYGEN)
353 #define EVUTIL_SOCKET_ERROR() ...
355 #define EVUTIL_SET_SOCKET_ERROR(errcode) ...
357 #define evutil_socket_geterror(sock) ...
359 #define evutil_socket_error_to_string(errcode) ...
362 #define EVUTIL_SOCKET_ERROR() (errno)
363 #define EVUTIL_SET_SOCKET_ERROR(errcode) \
364 do { errno = (errcode); } while (0)
365 #define evutil_socket_geterror(sock) (errno)
366 #define evutil_socket_error_to_string(errcode) (strerror(errcode))
378 #ifdef _EVENT_HAVE_TIMERADD
379 #define evutil_timeradd(tvp, uvp, vvp) timeradd((tvp), (uvp), (vvp))
380 #define evutil_timersub(tvp, uvp, vvp) timersub((tvp), (uvp), (vvp))
382 #define evutil_timeradd(tvp, uvp, vvp) \
384 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
385 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
386 if ((vvp)->tv_usec >= 1000000) { \
388 (vvp)->tv_usec -= 1000000; \
391 #define evutil_timersub(tvp, uvp, vvp) \
393 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
394 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
395 if ((vvp)->tv_usec < 0) { \
397 (vvp)->tv_usec += 1000000; \
402 #ifdef _EVENT_HAVE_TIMERCLEAR
403 #define evutil_timerclear(tvp) timerclear(tvp)
405 #define evutil_timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
411 #define evutil_timercmp(tvp, uvp, cmp) \
412 (((tvp)->tv_sec == (uvp)->tv_sec) ? \
413 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \
414 ((tvp)->tv_sec cmp (uvp)->tv_sec))
416 #ifdef _EVENT_HAVE_TIMERISSET
417 #define evutil_timerisset(tvp) timerisset(tvp)
419 #define evutil_timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
424 #define evutil_offsetof(type, field) offsetof(type, field)
426 #define evutil_offsetof(type, field) ((off_t)(&((type *)0)->field))
431 ev_int64_t
evutil_strtoll(
const char *s,
char **endptr,
int base);
434 #ifdef _EVENT_HAVE_GETTIMEOFDAY
435 #define evutil_gettimeofday(tv, tz) gettimeofday((tv), (tz))
438 int evutil_gettimeofday(
struct timeval *tv,
struct timezone *tz);
446 __attribute__((format(printf, 3, 4)))
452 int evutil_vsnprintf(
char *buf,
size_t buflen,
const char *format, va_list ap)
454 __attribute__((format(printf, 3, 0)))
459 const char *
evutil_inet_ntop(
int af,
const void *src,
char *dst,
size_t len);
505 #ifdef _EVENT_HAVE_STRUCT_ADDRINFO
506 #define evutil_addrinfo addrinfo
520 struct sockaddr *ai_addr;
531 #ifdef EAI_ADDRFAMILY
532 #define EVUTIL_EAI_ADDRFAMILY EAI_ADDRFAMILY
534 #define EVUTIL_EAI_ADDRFAMILY -901
537 #define EVUTIL_EAI_AGAIN EAI_AGAIN
539 #define EVUTIL_EAI_AGAIN -902
542 #define EVUTIL_EAI_BADFLAGS EAI_BADFLAGS
544 #define EVUTIL_EAI_BADFLAGS -903
547 #define EVUTIL_EAI_FAIL EAI_FAIL
549 #define EVUTIL_EAI_FAIL -904
552 #define EVUTIL_EAI_FAMILY EAI_FAMILY
554 #define EVUTIL_EAI_FAMILY -905
557 #define EVUTIL_EAI_MEMORY EAI_MEMORY
559 #define EVUTIL_EAI_MEMORY -906
564 #if defined(EAI_NODATA) && (!defined(EAI_NONAME) || EAI_NODATA != EAI_NONAME)
565 #define EVUTIL_EAI_NODATA EAI_NODATA
567 #define EVUTIL_EAI_NODATA -907
570 #define EVUTIL_EAI_NONAME EAI_NONAME
572 #define EVUTIL_EAI_NONAME -908
575 #define EVUTIL_EAI_SERVICE EAI_SERVICE
577 #define EVUTIL_EAI_SERVICE -909
580 #define EVUTIL_EAI_SOCKTYPE EAI_SOCKTYPE
582 #define EVUTIL_EAI_SOCKTYPE -910
585 #define EVUTIL_EAI_SYSTEM EAI_SYSTEM
587 #define EVUTIL_EAI_SYSTEM -911
590 #define EVUTIL_EAI_CANCEL -90001
593 #define EVUTIL_AI_PASSIVE AI_PASSIVE
595 #define EVUTIL_AI_PASSIVE 0x1000
598 #define EVUTIL_AI_CANONNAME AI_CANONNAME
600 #define EVUTIL_AI_CANONNAME 0x2000
602 #ifdef AI_NUMERICHOST
603 #define EVUTIL_AI_NUMERICHOST AI_NUMERICHOST
605 #define EVUTIL_AI_NUMERICHOST 0x4000
607 #ifdef AI_NUMERICSERV
608 #define EVUTIL_AI_NUMERICSERV AI_NUMERICSERV
610 #define EVUTIL_AI_NUMERICSERV 0x8000
613 #define EVUTIL_AI_V4MAPPED AI_V4MAPPED
615 #define EVUTIL_AI_V4MAPPED 0x10000
618 #define EVUTIL_AI_ALL AI_ALL
620 #define EVUTIL_AI_ALL 0x20000
623 #define EVUTIL_AI_ADDRCONFIG AI_ADDRCONFIG
625 #define EVUTIL_AI_ADDRCONFIG 0x40000
647 const char *evutil_gai_strerror(
int err);
#define evutil_socket_error_to_string(errcode)
Convert a socket error to a string.
Definition: util.h:359
int evutil_snprintf(char *buf, size_t buflen, const char *format,...)
Replacement for snprintf to get consistent behavior on platforms for which the return value of snprin...
int evutil_make_listen_socket_reuseable(evutil_socket_t sock)
Do platform-specific operations to make a listener socket reusable.
int evutil_closesocket(evutil_socket_t sock)
Do the platform-specific call needed to close a socket returned from socket() or accept().
#define evutil_socket_geterror(sock)
Return the most recent socket error to occur on sock.
Definition: util.h:357
int evutil_make_socket_nonblocking(evutil_socket_t sock)
Do platform-specific operations as needed to make a socket nonblocking.
void evutil_secure_rng_get_bytes(void *buf, size_t n)
Generate n bytes of secure pseudorandom data, and store them in buf.
const char * evutil_inet_ntop(int af, const void *src, char *dst, size_t len)
Replacement for inet_ntop for platforms which lack it.
int evutil_vsnprintf(char *buf, size_t buflen, const char *format, va_list ap)
Replacement for vsnprintf to get consistent behavior on platforms for which the return value of snpri...
#define evutil_socket_t
A type wide enough to hold the output of "socket()" or "accept()".
Definition: util.h:274
ev_int64_t evutil_strtoll(const char *s, char **endptr, int base)
Parse a 64-bit value from a string.
void evutil_secure_rng_add_bytes(const char *dat, size_t datlen)
Seed the random number generator with extra random bytes.
void evutil_freeaddrinfo(struct evutil_addrinfo *ai)
Release storage allocated by evutil_getaddrinfo or evdns_getaddrinfo.
int evutil_make_socket_closeonexec(evutil_socket_t sock)
Do platform-specific operations as needed to close a socket upon a successful execution of one of the...
int evutil_secure_rng_init(void)
Seed the secure random number generator if needed, and return 0 on success or -1 on failure...
int evutil_inet_pton(int af, const char *src, void *dst)
Replacement for inet_pton for platforms which lack it.
A definition of struct addrinfo for systems that lack it.
Definition: util.h:513
int evutil_ascii_strcasecmp(const char *str1, const char *str2)
As strcasecmp, but always compares the characters in locale-independent ASCII.
int evutil_socketpair(int d, int type, int protocol, evutil_socket_t sv[2])
Create two new sockets that are connected to each other.
int evutil_parse_sockaddr_port(const char *str, struct sockaddr *out, int *outlen)
Parse an IPv4 or IPv6 address, with optional port, from a string.
int evutil_sockaddr_cmp(const struct sockaddr *sa1, const struct sockaddr *sa2, int include_port)
Compare two sockaddrs; return 0 if they are equal, or less than 0 if sa1 preceeds sa2...
int evutil_ascii_strncasecmp(const char *str1, const char *str2, size_t n)
As strncasecmp, but always compares the characters in locale-independent ASCII.
int evutil_getaddrinfo(const char *nodename, const char *servname, const struct evutil_addrinfo *hints_in, struct evutil_addrinfo **res)
This function clones getaddrinfo for systems that don't have it.