83c0446f27
- make sure that all binder Bn classes define a ctor and dtor in their respective library. This avoids duplication of the ctor/dtor in libraries where these objects are instantiated. This is also cleaner, should we want these ctor/dtor to do something one day. - same change as above for some Bp classes and various other non-binder classes - moved the definition of CHECK_INTERFACE() in IInterface.h instead of having it everywhere. - improved the CHECK_INTERFACE() macro so it calls a single method in Parcel, instead of inlining its code everywhere - IBinder::getInterfaceDescriptor() now returns a "const String16&" instead of String16, which saves calls to String16 and ~String16 - implemented a cache for BpBinder::getInterfaceDescriptor(), since this does an IPC. HOWEVER, this method never seems to be called. The cache makes BpBinder bigger, so we need to figure out if we need this method at all.
138 lines
3.7 KiB
C++
138 lines
3.7 KiB
C++
/*
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* Copyright (C) 2005 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//
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// Timer functions.
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//
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#ifndef _LIBS_UTILS_TIMERS_H
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#define _LIBS_UTILS_TIMERS_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <sys/time.h>
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// ------------------------------------------------------------------
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// C API
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef int64_t nsecs_t; // nano-seconds
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static inline nsecs_t seconds_to_nanoseconds(nsecs_t secs)
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{
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return secs*1000000000;
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}
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static inline nsecs_t milliseconds_to_nanoseconds(nsecs_t secs)
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{
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return secs*1000000;
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}
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static inline nsecs_t microseconds_to_nanoseconds(nsecs_t secs)
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{
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return secs*1000;
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}
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static inline nsecs_t nanoseconds_to_seconds(nsecs_t secs)
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{
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return secs/1000000000;
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}
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static inline nsecs_t nanoseconds_to_milliseconds(nsecs_t secs)
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{
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return secs/1000000;
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}
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static inline nsecs_t nanoseconds_to_microseconds(nsecs_t secs)
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{
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return secs/1000;
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}
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static inline nsecs_t s2ns(nsecs_t v) {return seconds_to_nanoseconds(v);}
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static inline nsecs_t ms2ns(nsecs_t v) {return milliseconds_to_nanoseconds(v);}
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static inline nsecs_t us2ns(nsecs_t v) {return microseconds_to_nanoseconds(v);}
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static inline nsecs_t ns2s(nsecs_t v) {return nanoseconds_to_seconds(v);}
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static inline nsecs_t ns2ms(nsecs_t v) {return nanoseconds_to_milliseconds(v);}
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static inline nsecs_t ns2us(nsecs_t v) {return nanoseconds_to_microseconds(v);}
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static inline nsecs_t seconds(nsecs_t v) { return s2ns(v); }
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static inline nsecs_t milliseconds(nsecs_t v) { return ms2ns(v); }
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static inline nsecs_t microseconds(nsecs_t v) { return us2ns(v); }
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enum {
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SYSTEM_TIME_REALTIME = 0, // system-wide realtime clock
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SYSTEM_TIME_MONOTONIC = 1, // monotonic time since unspecified starting point
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SYSTEM_TIME_PROCESS = 2, // high-resolution per-process clock
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SYSTEM_TIME_THREAD = 3 // high-resolution per-thread clock
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};
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// return the system-time according to the specified clock
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#ifdef __cplusplus
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nsecs_t systemTime(int clock = SYSTEM_TIME_MONOTONIC);
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#else
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nsecs_t systemTime(int clock);
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#endif // def __cplusplus
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// return the system-time according to the specified clock
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int sleepForInterval(long interval, struct timeval* pNextTick);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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// ------------------------------------------------------------------
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// C++ API
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#ifdef __cplusplus
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namespace android {
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/*
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* Time the duration of something.
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*
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* Includes some timeval manipulation functions.
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*/
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class DurationTimer {
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public:
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DurationTimer() {}
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~DurationTimer() {}
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// Start the timer.
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void start();
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// Stop the timer.
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void stop();
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// Get the duration in microseconds.
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long long durationUsecs() const;
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// Subtract two timevals. Returns the difference (ptv1-ptv2) in
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// microseconds.
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static long long subtractTimevals(const struct timeval* ptv1,
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const struct timeval* ptv2);
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// Add the specified amount of time to the timeval.
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static void addToTimeval(struct timeval* ptv, long usec);
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private:
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struct timeval mStartWhen;
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struct timeval mStopWhen;
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};
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}; // android
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#endif // def __cplusplus
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#endif // _LIBS_UTILS_TIMERS_H
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