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change macOS < 10.12 clock to SYSTEM_CLOCK, fixes #2537 (#2538)

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* change macOS < 10.12 clock to SYSTEM_CLOCK, fixes #2537

* remove clock_id option from alt_clock_gettime since we always want a monotonic clock.

* update header definition for alt_clock_gettime

* pass clock definition down to host_get_clock_service for macOS < 10.12

* change to monotonic clocks
This commit is contained in:
Asmod4n 2017-04-20 00:13:06 +02:00 committed by Luca Boccassi
parent 45f4a40026
commit ce602d08db
2 changed files with 56 additions and 62 deletions
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12
src/clock.cpp
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@ -60,15 +60,9 @@
int alt_clock_gettime (int clock_id, timespec *ts)
{
// The clock_id specified is not supported on this system.
if (clock_id != CLOCK_REALTIME) {
errno = EINVAL;
return -1;
}
clock_serv_t cclock;
mach_timespec_t mts;
host_get_clock_service (mach_host_self (), CALENDAR_CLOCK, &cclock);
host_get_clock_service (mach_host_self (), clock_id, &cclock);
clock_get_time (cclock, &mts);
mach_port_deallocate (mach_task_self (), cclock);
ts->tv_sec = mts.tv_sec;
@ -163,7 +157,7 @@ uint64_t zmq::clock_t::now_us ()
struct timespec tv;
#if defined ZMQ_HAVE_OSX && __MAC_OS_X_VERSION_MIN_REQUIRED < 101200 // less than macOS 10.12
int rc = alt_clock_gettime (CLOCK_MONOTONIC, &tv);
int rc = alt_clock_gettime (SYSTEM_CLOCK, &tv);
#else
int rc = clock_gettime (CLOCK_MONOTONIC, &tv);
#endif
@ -250,7 +244,7 @@ uint64_t zmq::clock_t::rdtsc ()
#else
struct timespec ts;
#if defined ZMQ_HAVE_OSX && __MAC_OS_X_VERSION_MIN_REQUIRED < 101200 // less than macOS 10.12
alt_clock_gettime (CLOCK_MONOTONIC, &ts);
alt_clock_gettime (SYSTEM_CLOCK, &ts);
#else
clock_gettime (CLOCK_MONOTONIC, &ts);
#endif

4
src/condition_variable.hpp
View File

@ -214,9 +214,9 @@ namespace zmq
struct timespec timeout;
#if defined ZMQ_HAVE_OSX && __MAC_OS_X_VERSION_MIN_REQUIRED < 101200 // less than macOS 10.12
alt_clock_gettime(CLOCK_REALTIME, &timeout);
alt_clock_gettime(SYSTEM_CLOCK, &timeout);
#else
clock_gettime(CLOCK_REALTIME, &timeout);
clock_gettime(CLOCK_MONOTONIC, &timeout);
#endif
timeout.tv_sec += timeout_ / 1000;