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Add an (internal) usleep function for use by unit tests

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This commit is contained in:
Nick Mathewson 2012-01-24 11:42:26 -05:00
parent 18653fcae7
commit f25d9d32b1
4 changed files with 62 additions and 1 deletions
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2
configure.in
View File

@ -321,6 +321,7 @@ AC_CHECK_FUNCS([ \
inet_pton \
issetugid \
mmap \
nanosleep \
pipe \
putenv \
sendfile \
@ -334,6 +335,7 @@ AC_CHECK_FUNCS([ \
strtoll \
sysctl \
unsetenv \
usleep \
vasprintf \
])

30
evutil.c
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@ -67,7 +67,10 @@
#ifdef _EVENT_HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#if !defined(_EVENT_HAVE_NANOSLEEP) && !defined(EVENT_HAVE_USLEEP) && \
!defined(_WIN32)
#include <sys/select.h>
#endif
#ifndef _EVENT_HAVE_GETTIMEOFDAY
#include <sys/timeb.h>
#include <time.h>
@ -2266,3 +2269,28 @@ evutil_load_windows_system_library(const TCHAR *library_name)
}
#endif
void
evutil_usleep(const struct timeval *tv)
{
if (!tv)
return;
#if defined(_WIN32)
{
long msec = evutil_tv_to_msec(tv);
Sleep((DWORD)msec);
}
#elif defined(_EVENT_HAVE_NANOSLEEP_X)
{
struct timespec ts;
ts.tv_sec = tv->tv_sec;
ts.tv_nsec = tv->tv_usec*1000;
nanosleep(&ts, NULL);
}
#elif defined(_EVENT_HAVE_USLEEP)
/* Some systems don't like to usleep more than 999999 usec */
sleep(tv->tv_sec);
usleep(tv->tv_usec);
#else
select(0, NULL, NULL, NULL, tv);
#endif
}

29
test/regress_util.c
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@ -1174,6 +1174,34 @@ test_event_strdup(void *arg)
return;
}
static void
test_evutil_usleep(void *arg)
{
struct timeval tv1, tv2, tv3, diff1, diff2;
const struct timeval quarter_sec = {0, 250*1000};
const struct timeval tenth_sec = {0, 100*1000};
long usec1, usec2;
evutil_gettimeofday(&tv1, NULL);
evutil_usleep(&quarter_sec);
evutil_gettimeofday(&tv2, NULL);
evutil_usleep(&tenth_sec);
evutil_gettimeofday(&tv3, NULL);
evutil_timersub(&tv2, &tv1, &diff1);
evutil_timersub(&tv3, &tv2, &diff2);
usec1 = diff1.tv_sec * 1000000 + diff1.tv_usec;
usec2 = diff2.tv_sec * 1000000 + diff2.tv_usec;
tt_int_op(usec1, >, 200000);
tt_int_op(usec1, <, 300000);
tt_int_op(usec2, >, 80000);
tt_int_op(usec2, <, 120000);
end:
;
}
struct testcase_t util_testcases[] = {
{ "ipv4_parse", regress_ipv4_parse, 0, NULL, NULL },
{ "ipv6_parse", regress_ipv6_parse, 0, NULL, NULL },
@ -1195,6 +1223,7 @@ struct testcase_t util_testcases[] = {
{ "mm_malloc", test_event_malloc, 0, NULL, NULL },
{ "mm_calloc", test_event_calloc, 0, NULL, NULL },
{ "mm_strdup", test_event_strdup, 0, NULL, NULL },
{ "usleep", test_evutil_usleep, 0, NULL, NULL },
END_OF_TESTCASES,
};

2
util-internal.h
View File

@ -268,6 +268,8 @@ long evutil_tv_to_msec(const struct timeval *tv);
int evutil_hex_char_to_int(char c);
void evutil_usleep(const struct timeval *tv);
#ifdef _WIN32
HANDLE evutil_load_windows_system_library(const TCHAR *library_name);
#endif