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author | Daniel Wilhelm <daniel@wili.li> | 2014-04-18 17:02:17 +0200 |
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committer | Daniel Wilhelm <daniel@wili.li> | 2014-04-18 17:02:17 +0200 |
commit | b9203ee84953006547f4afd58f405874c87bf0dc (patch) | |
tree | 9e41f1533f120e9268e86658c52458630ffd718a /shared/ossp_uuid/uuid_time.c | |
parent | 3.0 (diff) | |
download | FreeFileSync-b9203ee84953006547f4afd58f405874c87bf0dc.tar.gz FreeFileSync-b9203ee84953006547f4afd58f405874c87bf0dc.tar.bz2 FreeFileSync-b9203ee84953006547f4afd58f405874c87bf0dc.zip |
3.1
Diffstat (limited to 'shared/ossp_uuid/uuid_time.c')
-rw-r--r-- | shared/ossp_uuid/uuid_time.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/shared/ossp_uuid/uuid_time.c b/shared/ossp_uuid/uuid_time.c new file mode 100644 index 00000000..7df8966b --- /dev/null +++ b/shared/ossp_uuid/uuid_time.c @@ -0,0 +1,117 @@ +/* +** OSSP uuid - Universally Unique Identifier +** Copyright (c) 2004-2008 Ralf S. Engelschall <rse@engelschall.com> +** Copyright (c) 2004-2008 The OSSP Project <http://www.ossp.org/> +** +** This file is part of OSSP uuid, a library for the generation +** of UUIDs which can found at http://www.ossp.org/pkg/lib/uuid/ +** +** Permission to use, copy, modify, and distribute this software for +** any purpose with or without fee is hereby granted, provided that +** the above copyright notice and this permission notice appear in all +** copies. +** +** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR +** CONTRIBUTORS 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. +** +** uuid_time.c: Time Management +*/ + +/* own headers (part (1/2) */ +#include "uuid_ac.h" + +/* system headers */ +#include <stdlib.h> +#include <unistd.h> +#include <time.h> +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#endif +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif + +/* own headers (part (1/2) */ +#include "uuid_time.h" + +/* POSIX gettimeofday(2) abstraction (without timezone) */ +int time_gettimeofday(struct timeval *tv) +{ +#if defined(HAVE_GETTIMEOFDAY) + /* Unix/POSIX pass-through */ + return gettimeofday(tv, NULL); +#elif defined(HAVE_CLOCK_GETTIME) + /* POSIX emulation */ + struct timespec ts; + if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1) + return -1; + if (tv != NULL) { + tv->tv_sec = (long)ts.tv_sec; + tv->tv_usec = (long)ts.tv_nsec / 1000; + } + return 0; +#elif defined(WIN32) + /* Windows emulation */ + FILETIME ft; + LARGE_INTEGER li; + __int64 t; + static int tzflag; +#if !defined(__GNUC__) +#define EPOCHFILETIME 116444736000000000i64 +#else +#define EPOCHFILETIME 116444736000000000LL +#endif + if (tv != NULL) { + GetSystemTimeAsFileTime(&ft); + li.LowPart = ft.dwLowDateTime; + li.HighPart = ft.dwHighDateTime; + t = li.QuadPart; + t -= EPOCHFILETIME; + t /= 10; + tv->tv_sec = (long)(t / 1000000); + tv->tv_usec = (long)(t % 1000000); + } + return 0; +#else +#error neither Win32 GetSystemTimeAsFileTime() nor Unix gettimeofday() nor POSIX clock_gettime() available! +#endif +} + +/* BSD usleep(3) abstraction */ +int time_usleep(long usec) +{ +#if defined(WIN32) && defined(HAVE_SLEEP) + /* Win32 newer Sleep(3) variant */ + Sleep(usec / 1000); +#elif defined(WIN32) + /* Win32 older _sleep(3) variant */ + _sleep(usec / 1000); +#elif defined(HAVE_NANOSLEEP) + /* POSIX newer nanosleep(3) variant */ + struct timespec ts; + ts.tv_sec = 0; + ts.tv_nsec = 1000 * usec; + nanosleep(&ts, NULL); +#else + /* POSIX older select(2) variant */ + struct timeval tv; + tv.tv_sec = 0; + tv.tv_usec = usec; + select(0, NULL, NULL, NULL, &tv); +#endif + return 0; +} + |