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Diffstat (limited to 'widget/gonk/libui/cutils_trace.h')
| -rw-r--r-- | widget/gonk/libui/cutils_trace.h | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/widget/gonk/libui/cutils_trace.h b/widget/gonk/libui/cutils_trace.h deleted file mode 100644 index 29034cab5..000000000 --- a/widget/gonk/libui/cutils_trace.h +++ /dev/null @@ -1,276 +0,0 @@ -/* - * Copyright (C) 2012 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef _LIBS_CUTILS_TRACE_H -#define _LIBS_CUTILS_TRACE_H - -#include <sys/cdefs.h> -#include <sys/types.h> -#include <stdint.h> -#include <stdbool.h> -#include <unistd.h> -#include <cutils/compiler.h> - -#ifdef ANDROID_SMP -#include <cutils/atomic-inline.h> -#else -#include <cutils/atomic.h> -#endif - -__BEGIN_DECLS - -/** - * The ATRACE_TAG macro can be defined before including this header to trace - * using one of the tags defined below. It must be defined to one of the - * following ATRACE_TAG_* macros. The trace tag is used to filter tracing in - * userland to avoid some of the runtime cost of tracing when it is not desired. - * - * Defining ATRACE_TAG to be ATRACE_TAG_ALWAYS will result in the tracing always - * being enabled - this should ONLY be done for debug code, as userland tracing - * has a performance cost even when the trace is not being recorded. Defining - * ATRACE_TAG to be ATRACE_TAG_NEVER or leaving ATRACE_TAG undefined will result - * in the tracing always being disabled. - * - * ATRACE_TAG_HAL should be bitwise ORed with the relevant tags for tracing - * within a hardware module. For example a camera hardware module would set: - * #define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL) - * - * Keep these in sync with frameworks/base/core/java/android/os/Trace.java. - */ -#define ATRACE_TAG_NEVER 0 // This tag is never enabled. -#define ATRACE_TAG_ALWAYS (1<<0) // This tag is always enabled. -#define ATRACE_TAG_GRAPHICS (1<<1) -#define ATRACE_TAG_INPUT (1<<2) -#define ATRACE_TAG_VIEW (1<<3) -#define ATRACE_TAG_WEBVIEW (1<<4) -#define ATRACE_TAG_WINDOW_MANAGER (1<<5) -#define ATRACE_TAG_ACTIVITY_MANAGER (1<<6) -#define ATRACE_TAG_SYNC_MANAGER (1<<7) -#define ATRACE_TAG_AUDIO (1<<8) -#define ATRACE_TAG_VIDEO (1<<9) -#define ATRACE_TAG_CAMERA (1<<10) -#define ATRACE_TAG_HAL (1<<11) -#define ATRACE_TAG_APP (1<<12) -#define ATRACE_TAG_RESOURCES (1<<13) -#define ATRACE_TAG_DALVIK (1<<14) -#define ATRACE_TAG_LAST ATRACE_TAG_DALVIK - -// Reserved for initialization. -#define ATRACE_TAG_NOT_READY (1LL<<63) - -#define ATRACE_TAG_VALID_MASK ((ATRACE_TAG_LAST - 1) | ATRACE_TAG_LAST) - -#ifndef ATRACE_TAG -#define ATRACE_TAG ATRACE_TAG_NEVER -#elif ATRACE_TAG > ATRACE_TAG_VALID_MASK -#error ATRACE_TAG must be defined to be one of the tags defined in cutils/trace.h -#endif - -#ifdef HAVE_ANDROID_OS -/** - * Maximum size of a message that can be logged to the trace buffer. - * Note this message includes a tag, the pid, and the string given as the name. - * Names should be kept short to get the most use of the trace buffer. - */ -#define ATRACE_MESSAGE_LENGTH 1024 - -/** - * Opens the trace file for writing and reads the property for initial tags. - * The atrace.tags.enableflags property sets the tags to trace. - * This function should not be explicitly called, the first call to any normal - * trace function will cause it to be run safely. - */ -void atrace_setup(); - -/** - * If tracing is ready, set atrace_enabled_tags to the system property - * debug.atrace.tags.enableflags. Can be used as a sysprop change callback. - */ -void atrace_update_tags(); - -/** - * Set whether the process is debuggable. By default the process is not - * considered debuggable. If the process is not debuggable then application- - * level tracing is not allowed unless the ro.debuggable system property is - * set to '1'. - */ -void atrace_set_debuggable(bool debuggable); - -/** - * Set whether tracing is enabled for the current process. This is used to - * prevent tracing within the Zygote process. - */ -void atrace_set_tracing_enabled(bool enabled); - -/** - * Flag indicating whether setup has been completed, initialized to 0. - * Nonzero indicates setup has completed. - * Note: This does NOT indicate whether or not setup was successful. - */ -extern volatile int32_t atrace_is_ready; - -/** - * Set of ATRACE_TAG flags to trace for, initialized to ATRACE_TAG_NOT_READY. - * A value of zero indicates setup has failed. - * Any other nonzero value indicates setup has succeeded, and tracing is on. - */ -extern uint64_t atrace_enabled_tags; - -/** - * Handle to the kernel's trace buffer, initialized to -1. - * Any other value indicates setup has succeeded, and is a valid fd for tracing. - */ -extern int atrace_marker_fd; - -/** - * atrace_init readies the process for tracing by opening the trace_marker file. - * Calling any trace function causes this to be run, so calling it is optional. - * This can be explicitly run to avoid setup delay on first trace function. - */ -#define ATRACE_INIT() atrace_init() -static inline void atrace_init() -{ - if (CC_UNLIKELY(!android_atomic_acquire_load(&atrace_is_ready))) { - atrace_setup(); - } -} - -/** - * Get the mask of all tags currently enabled. - * It can be used as a guard condition around more expensive trace calculations. - * Every trace function calls this, which ensures atrace_init is run. - */ -#define ATRACE_GET_ENABLED_TAGS() atrace_get_enabled_tags() -static inline uint64_t atrace_get_enabled_tags() -{ - atrace_init(); - return atrace_enabled_tags; -} - -/** - * Test if a given tag is currently enabled. - * Returns nonzero if the tag is enabled, otherwise zero. - * It can be used as a guard condition around more expensive trace calculations. - */ -#define ATRACE_ENABLED() atrace_is_tag_enabled(ATRACE_TAG) -static inline uint64_t atrace_is_tag_enabled(uint64_t tag) -{ - return atrace_get_enabled_tags() & tag; -} - -/** - * Trace the beginning of a context. name is used to identify the context. - * This is often used to time function execution. - */ -#define ATRACE_BEGIN(name) atrace_begin(ATRACE_TAG, name) -static inline void atrace_begin(uint64_t tag, const char* name) -{ - if (CC_UNLIKELY(atrace_is_tag_enabled(tag))) { - char buf[ATRACE_MESSAGE_LENGTH]; - size_t len; - - len = snprintf(buf, ATRACE_MESSAGE_LENGTH, "B|%d|%s", getpid(), name); - write(atrace_marker_fd, buf, len); - } -} - -/** - * Trace the end of a context. - * This should match up (and occur after) a corresponding ATRACE_BEGIN. - */ -#define ATRACE_END() atrace_end(ATRACE_TAG) -static inline void atrace_end(uint64_t tag) -{ - if (CC_UNLIKELY(atrace_is_tag_enabled(tag))) { - char c = 'E'; - write(atrace_marker_fd, &c, 1); - } -} - -/** - * Trace the beginning of an asynchronous event. Unlike ATRACE_BEGIN/ATRACE_END - * contexts, asynchronous events do not need to be nested. The name describes - * the event, and the cookie provides a unique identifier for distinguishing - * simultaneous events. The name and cookie used to begin an event must be - * used to end it. - */ -#define ATRACE_ASYNC_BEGIN(name, cookie) \ - atrace_async_begin(ATRACE_TAG, name, cookie) -static inline void atrace_async_begin(uint64_t tag, const char* name, - int32_t cookie) -{ - if (CC_UNLIKELY(atrace_is_tag_enabled(tag))) { - char buf[ATRACE_MESSAGE_LENGTH]; - size_t len; - - len = snprintf(buf, ATRACE_MESSAGE_LENGTH, "S|%d|%s|%d", getpid(), - name, cookie); - write(atrace_marker_fd, buf, len); - } -} - -/** - * Trace the end of an asynchronous event. - * This should have a corresponding ATRACE_ASYNC_BEGIN. - */ -#define ATRACE_ASYNC_END(name, cookie) atrace_async_end(ATRACE_TAG, name, cookie) -static inline void atrace_async_end(uint64_t tag, const char* name, - int32_t cookie) -{ - if (CC_UNLIKELY(atrace_is_tag_enabled(tag))) { - char buf[ATRACE_MESSAGE_LENGTH]; - size_t len; - - len = snprintf(buf, ATRACE_MESSAGE_LENGTH, "F|%d|%s|%d", getpid(), - name, cookie); - write(atrace_marker_fd, buf, len); - } -} - - -/** - * Traces an integer counter value. name is used to identify the counter. - * This can be used to track how a value changes over time. - */ -#define ATRACE_INT(name, value) atrace_int(ATRACE_TAG, name, value) -static inline void atrace_int(uint64_t tag, const char* name, int32_t value) -{ - if (CC_UNLIKELY(atrace_is_tag_enabled(tag))) { - char buf[ATRACE_MESSAGE_LENGTH]; - size_t len; - - len = snprintf(buf, ATRACE_MESSAGE_LENGTH, "C|%d|%s|%d", - getpid(), name, value); - write(atrace_marker_fd, buf, len); - } -} - -#else // not HAVE_ANDROID_OS - -#define ATRACE_INIT() -#define ATRACE_GET_ENABLED_TAGS() -#define ATRACE_ENABLED() -#define ATRACE_BEGIN(name) -#define ATRACE_END() -#define ATRACE_ASYNC_BEGIN(name, cookie) -#define ATRACE_ASYNC_END(name, cookie) -#define ATRACE_INT(name, value) - -#endif // not HAVE_ANDROID_OS - -__END_DECLS - -#endif // _LIBS_CUTILS_TRACE_H |