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author | Elliott Hughes <enh@google.com> | 2016-02-12 18:16:48 -0800 |
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committer | Elliott Hughes <enh@google.com> | 2016-02-12 18:16:48 -0800 |
commit | 109f82bbbf08df850e1d56b57f45eff67a46d719 (patch) | |
tree | 00e530c666c9486a5f9082c555139f12513bb420 | |
parent | 2df830e8469f24fae5c11999d57f207b50df4842 (diff) | |
download | libmemtrack-109f82bbbf08df850e1d56b57f45eff67a46d719.tar.gz |
Move libmemtrack headers into libmemtrack.
Change-Id: I6f695b4a965e924331d1a07fc45e9d8b6bc43d92
-rw-r--r-- | Android.mk | 2 | ||||
-rw-r--r-- | include/memtrack/memtrack.h | 147 |
2 files changed, 149 insertions, 0 deletions
@@ -5,6 +5,8 @@ LOCAL_PATH:= $(call my-dir) include $(CLEAR_VARS) LOCAL_SRC_FILES := memtrack.c LOCAL_MODULE := libmemtrack +LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include +LOCAL_C_INCLUDES += $(LOCAL_PATH)/include LOCAL_C_INCLUDES += hardware/libhardware/include LOCAL_SHARED_LIBRARIES := libhardware liblog LOCAL_CFLAGS := -Wall -Werror diff --git a/include/memtrack/memtrack.h b/include/memtrack/memtrack.h new file mode 100644 index 0000000..3917300 --- /dev/null +++ b/include/memtrack/memtrack.h @@ -0,0 +1,147 @@ +/* + * Copyright (C) 2013 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 _LIBMEMTRACK_MEMTRACK_H_ +#define _LIBMEMTRACK_MEMTRACK_H_ + +#include <sys/types.h> +#include <stddef.h> +#include <cutils/compiler.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * struct memtrack_proc + * + * an opaque handle to the memory stats on a process. + * Created with memtrack_proc_new, destroyed by + * memtrack_proc_destroy. Can be reused multiple times with + * memtrack_proc_get. + */ +struct memtrack_proc; + +/** + * memtrack_init + * + * Must be called once before calling any other functions. After this function + * is called, everything else is thread-safe. + * + * Returns 0 on success, -errno on error. + */ +int memtrack_init(void); + +/** + * memtrack_proc_new + * + * Return a new handle to hold process memory stats. + * + * Returns NULL on error. + */ +struct memtrack_proc *memtrack_proc_new(void); + +/** + * memtrack_proc_destroy + * + * Free all memory associated with a process memory stats handle. + */ +void memtrack_proc_destroy(struct memtrack_proc *p); + +/** + * memtrack_proc_get + * + * Fill a process memory stats handle with data about the given pid. Can be + * called on a handle that was just allocated with memtrack_proc_new, + * or on a handle that has been previously passed to memtrack_proc_get + * to replace the data with new data on the same or another process. It is + * expected that the second call on the same handle should not require + * allocating any new memory. + * + * Returns 0 on success, -errno on error. + */ +int memtrack_proc_get(struct memtrack_proc *p, pid_t pid); + +/** + * memtrack_proc_graphics_total + * + * Return total amount of memory that has been allocated for use as window + * buffers. Does not differentiate between memory that has already been + * accounted for by reading /proc/pid/smaps and memory that has not been + * accounted for. + * + * Returns non-negative size in bytes on success, -errno on error. + */ +ssize_t memtrack_proc_graphics_total(struct memtrack_proc *p); + +/** + * memtrack_proc_graphics_pss + * + * Return total amount of memory that has been allocated for use as window + * buffers, but has not already been accounted for by reading /proc/pid/smaps. + * Memory that is shared across processes may already be divided by the + * number of processes that share it (preferred), or may be charged in full to + * every process that shares it, depending on the capabilities of the driver. + * + * Returns non-negative size in bytes on success, -errno on error. + */ +ssize_t memtrack_proc_graphics_pss(struct memtrack_proc *p); + +/** + * memtrack_proc_gl_total + * + * Same as memtrack_proc_graphics_total, but counts GL memory (which + * should not overlap with graphics memory) instead of graphics memory. + * + * Returns non-negative size in bytes on success, -errno on error. + */ +ssize_t memtrack_proc_gl_total(struct memtrack_proc *p); + +/** + * memtrack_proc_gl_pss + * + * Same as memtrack_proc_graphics_total, but counts GL memory (which + * should not overlap with graphics memory) instead of graphics memory. + * + * Returns non-negative size in bytes on success, -errno on error. + */ +ssize_t memtrack_proc_gl_pss(struct memtrack_proc *p); + +/** + * memtrack_proc_other_total + * + * Same as memtrack_proc_graphics_total, but counts miscellaneous memory + * not tracked by gl or graphics calls above. + * + * Returns non-negative size in bytes on success, -errno on error. + */ +ssize_t memtrack_proc_other_total(struct memtrack_proc *p); + +/** + * memtrack_proc_other_pss + * + * Same as memtrack_proc_graphics_total, but counts miscellaneous memory + * not tracked by gl or graphics calls above. + * + * Returns non-negative size in bytes on success, -errno on error. + */ +ssize_t memtrack_proc_other_pss(struct memtrack_proc *p); + +#ifdef __cplusplus +} +#endif + +#endif |