summaryrefslogtreecommitdiffstats
path: root/src/gallium/auxiliary/os
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/auxiliary/os')
-rw-r--r--src/gallium/auxiliary/os/os_time.c190
-rw-r--r--src/gallium/auxiliary/os/os_time.h135
2 files changed, 0 insertions, 325 deletions
diff --git a/src/gallium/auxiliary/os/os_time.c b/src/gallium/auxiliary/os/os_time.c
deleted file mode 100644
index e4a1cae641a..00000000000
--- a/src/gallium/auxiliary/os/os_time.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2008-2010 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-/**
- * @file
- * OS independent time-manipulation functions.
- *
- * @author Jose Fonseca <[email protected]>
- */
-
-
-#include "pipe/p_defines.h"
-#include "util/u_atomic.h"
-
-#if defined(PIPE_OS_UNIX)
-# include <time.h> /* timeval */
-# include <sys/time.h> /* timeval */
-# include <sched.h> /* sched_yield */
-# include <errno.h>
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
-# include <windows.h>
-#else
-# error Unsupported OS
-#endif
-
-#include "os_time.h"
-
-
-int64_t
-os_time_get_nano(void)
-{
-#if defined(PIPE_OS_LINUX)
-
- struct timespec tv;
- clock_gettime(CLOCK_MONOTONIC, &tv);
- return tv.tv_nsec + tv.tv_sec*INT64_C(1000000000);
-
-#elif defined(PIPE_OS_UNIX)
-
- struct timeval tv;
- gettimeofday(&tv, NULL);
- return tv.tv_usec*INT64_C(1000) + tv.tv_sec*INT64_C(1000000000);
-
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
-
- static LARGE_INTEGER frequency;
- LARGE_INTEGER counter;
- int64_t secs, nanosecs;
- if(!frequency.QuadPart)
- QueryPerformanceFrequency(&frequency);
- QueryPerformanceCounter(&counter);
- /* Compute seconds and nanoseconds parts separately to
- * reduce severity of precision loss.
- */
- secs = counter.QuadPart / frequency.QuadPart;
- nanosecs = (counter.QuadPart % frequency.QuadPart) * INT64_C(1000000000)
- / frequency.QuadPart;
- return secs*INT64_C(1000000000) + nanosecs;
-
-#else
-
-#error Unsupported OS
-
-#endif
-}
-
-
-
-void
-os_time_sleep(int64_t usecs)
-{
-#if defined(PIPE_OS_LINUX)
- struct timespec time;
- time.tv_sec = usecs / 1000000;
- time.tv_nsec = (usecs % 1000000) * 1000;
- while (clock_nanosleep(CLOCK_MONOTONIC, 0, &time, &time) == EINTR);
-
-#elif defined(PIPE_OS_UNIX)
- usleep(usecs);
-
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
- DWORD dwMilliseconds = (DWORD) ((usecs + 999) / 1000);
- /* Avoid Sleep(O) as that would cause to sleep for an undetermined duration */
- if (dwMilliseconds) {
- Sleep(dwMilliseconds);
- }
-#else
-# error Unsupported OS
-#endif
-}
-
-
-
-int64_t
-os_time_get_absolute_timeout(uint64_t timeout)
-{
- int64_t time, abs_timeout;
-
- /* Also check for the type upper bound. */
- if (timeout == PIPE_TIMEOUT_INFINITE || timeout > INT64_MAX)
- return PIPE_TIMEOUT_INFINITE;
-
- time = os_time_get_nano();
- abs_timeout = time + (int64_t)timeout;
-
- /* Check for overflow. */
- if (abs_timeout < time)
- return PIPE_TIMEOUT_INFINITE;
-
- return abs_timeout;
-}
-
-
-bool
-os_wait_until_zero(volatile int *var, uint64_t timeout)
-{
- if (!p_atomic_read(var))
- return true;
-
- if (!timeout)
- return false;
-
- if (timeout == PIPE_TIMEOUT_INFINITE) {
- while (p_atomic_read(var)) {
-#if defined(PIPE_OS_UNIX)
- sched_yield();
-#endif
- }
- return true;
- }
- else {
- int64_t start_time = os_time_get_nano();
- int64_t end_time = start_time + timeout;
-
- while (p_atomic_read(var)) {
- if (os_time_timeout(start_time, end_time, os_time_get_nano()))
- return false;
-
-#if defined(PIPE_OS_UNIX)
- sched_yield();
-#endif
- }
- return true;
- }
-}
-
-
-bool
-os_wait_until_zero_abs_timeout(volatile int *var, int64_t timeout)
-{
- if (!p_atomic_read(var))
- return true;
-
- if (timeout == PIPE_TIMEOUT_INFINITE)
- return os_wait_until_zero(var, PIPE_TIMEOUT_INFINITE);
-
- while (p_atomic_read(var)) {
- if (os_time_get_nano() >= timeout)
- return false;
-
-#if defined(PIPE_OS_UNIX)
- sched_yield();
-#endif
- }
- return true;
-}
diff --git a/src/gallium/auxiliary/os/os_time.h b/src/gallium/auxiliary/os/os_time.h
deleted file mode 100644
index ca0bdd5a0c4..00000000000
--- a/src/gallium/auxiliary/os/os_time.h
+++ /dev/null
@@ -1,135 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2008-2010 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-/**
- * @file
- * OS independent time-manipulation functions.
- *
- * @author Jose Fonseca <[email protected]>
- */
-
-#ifndef _OS_TIME_H_
-#define _OS_TIME_H_
-
-
-#include "pipe/p_config.h"
-
-#if defined(PIPE_OS_UNIX)
-# include <unistd.h> /* usleep */
-#endif
-
-#include "pipe/p_compiler.h"
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/*
- * Get the current time in nanoseconds from an unknown base.
- */
-int64_t
-os_time_get_nano(void);
-
-
-/*
- * Get the current time in microseconds from an unknown base.
- */
-static inline int64_t
-os_time_get(void)
-{
- return os_time_get_nano() / 1000;
-}
-
-
-/*
- * Sleep.
- */
-void
-os_time_sleep(int64_t usecs);
-
-
-/*
- * Helper function for detecting time outs, taking in account overflow.
- *
- * Returns true if the current time has elapsed beyond the specified interval.
- */
-static inline boolean
-os_time_timeout(int64_t start,
- int64_t end,
- int64_t curr)
-{
- if (start <= end)
- return !(start <= curr && curr < end);
- else
- return !((start <= curr) || (curr < end));
-}
-
-
-/**
- * Convert a relative timeout in nanoseconds into an absolute timeout,
- * in other words, it returns current time + timeout.
- * os_time_get_nano() must be monotonic.
- * PIPE_TIMEOUT_INFINITE is passed through unchanged. If the calculation
- * overflows, PIPE_TIMEOUT_INFINITE is returned.
- */
-int64_t
-os_time_get_absolute_timeout(uint64_t timeout);
-
-
-/**
- * Wait until the variable at the given memory location is zero.
- *
- * \param var variable
- * \param timeout timeout in ns, can be anything from 0 (no wait) to
- * PIPE_TIME_INFINITE (wait forever)
- * \return true if the variable is zero
- */
-bool
-os_wait_until_zero(volatile int *var, uint64_t timeout);
-
-
-/**
- * Wait until the variable at the given memory location is zero.
- * The timeout is the absolute time when the waiting should stop. If it is
- * less than or equal to the current time, it only returns the status and
- * doesn't wait. PIPE_TIME_INFINITE waits forever. This requires that
- * os_time_get_nano is monotonic.
- *
- * \param var variable
- * \param timeout the time in ns when the waiting should stop
- * \return true if the variable is zero
- */
-bool
-os_wait_until_zero_abs_timeout(volatile int *var, int64_t timeout);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _OS_TIME_H_ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 04:30:24 +0000