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wineoss: Introduce a helper to retrieve the time. 

The motivation is that this will need to be called from a
non-Win32 thread and so shouldn't use the Win32 API.  An
added benefit is that it will eliminate the 16ms jitter
associated with GetTickCount().

Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Andrew Eikum <aeikum@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2022-04-29 08:29:55 +01:00 committed by Alexandre Julliard
parent 60f9750442
commit a0f0c3f345
1 changed files with 17 additions and 3 deletions
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20
dlls/wineoss.drv/ossmidi.c
View File

@ -30,6 +30,8 @@
#include <stdarg.h>
#include <string.h>
#include <stdio.h>
#include <stdint.h>
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
@ -155,6 +157,18 @@ static void in_buffer_unlock(void)
pthread_mutex_unlock(&in_buffer_mutex);
}
static uint64_t get_time_msec(void)
{
struct timespec now = {0, 0};
#ifdef CLOCK_MONOTONIC_RAW
if (!clock_gettime(CLOCK_MONOTONIC_RAW, &now))
return (uint64_t)now.tv_sec * 1000 + now.tv_nsec / 1000000;
#endif
clock_gettime(CLOCK_MONOTONIC, &now);
return (uint64_t)now.tv_sec * 1000 + now.tv_nsec / 1000000;
}
/*
* notify buffer: The notification ring buffer is implemented so that
* there is always at least one unused sentinel before the current
@ -1304,7 +1318,7 @@ NTSTATUS midi_handle_data(void *args)
struct midi_handle_data_params *params = args;
unsigned char *buffer = params->buffer;
unsigned int len = params->len;
unsigned int time = NtGetTickCount(), i;
unsigned int time = get_time_msec(), i;
struct midi_src *src;
unsigned char value;
WORD dev_id;
@ -1415,7 +1429,7 @@ static UINT midi_in_start(WORD dev_id)
if (src->state == -1) return MIDIERR_NODEVICE;
src->state = 1;
src->startTime = NtGetTickCount();
src->startTime = get_time_msec();
return MMSYSERR_NOERROR;
}
@ -1435,7 +1449,7 @@ static UINT midi_in_stop(WORD dev_id)
static UINT midi_in_reset(WORD dev_id, struct notify_context *notify)
{
UINT cur_time = NtGetTickCount();
UINT cur_time = get_time_msec();
UINT err = MMSYSERR_NOERROR;
struct midi_src *src;
MIDIHDR *hdr;