| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // This file contains routines for gathering resource statistics for processes |
| // running on the system. |
| |
| #ifndef BASE_PROCESS_PROCESS_METRICS_H_ |
| #define BASE_PROCESS_PROCESS_METRICS_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/base_export.h" |
| #include "base/gtest_prod_util.h" |
| #include "base/macros.h" |
| #include "base/process/process_handle.h" |
| #include "base/time/time.h" |
| #include "base/values.h" |
| #include "build/build_config.h" |
| |
| #if defined(OS_MACOSX) |
| #include <mach/mach.h> |
| #include "base/process/port_provider_mac.h" |
| |
| #if !defined(OS_IOS) |
| #include <mach/mach_vm.h> |
| #endif |
| #endif |
| |
| #if defined(OS_WIN) |
| #include "base/win/scoped_handle.h" |
| #include "base/win/windows_types.h" |
| #endif |
| |
| namespace base { |
| |
| #if defined(OS_WIN) |
| // _WINDOWS_ will be defined if Windows.h was included - include Windows.h first |
| // to get access to the full struct definition. |
| #if defined(_WINDOWS_) |
| struct IoCounters : public IO_COUNTERS { |
| }; |
| #else |
| struct IoCounters; |
| #endif |
| #elif defined(OS_POSIX) |
| struct IoCounters { |
| uint64_t ReadOperationCount; |
| uint64_t WriteOperationCount; |
| uint64_t OtherOperationCount; |
| uint64_t ReadTransferCount; |
| uint64_t WriteTransferCount; |
| uint64_t OtherTransferCount; |
| }; |
| #endif |
| |
| // Working Set (resident) memory usage broken down by |
| // |
| // On Windows: |
| // priv (private): These pages (kbytes) cannot be shared with any other process. |
| // shareable: These pages (kbytes) can be shared with other processes under |
| // the right circumstances. |
| // shared : These pages (kbytes) are currently shared with at least one |
| // other process. |
| // |
| // On Linux: |
| // priv: Pages mapped only by this process. |
| // shared: PSS or 0 if the kernel doesn't support this. |
| // shareable: 0 |
| |
| // On ChromeOS: |
| // priv: Pages mapped only by this process. |
| // shared: PSS or 0 if the kernel doesn't support this. |
| // shareable: 0 |
| // swapped Pages swapped out to zram. |
| // |
| // On macOS: |
| // priv: Resident size (RSS) including shared memory. Warning: This |
| // does not include compressed size and does not always |
| // accurately account for shared memory due to things like |
| // copy-on-write. TODO(erikchen): Revamp this with something |
| // more accurate. |
| // shared: 0 |
| // shareable: 0 |
| // |
| struct WorkingSetKBytes { |
| WorkingSetKBytes() : priv(0), shareable(0), shared(0) {} |
| size_t priv; |
| size_t shareable; |
| size_t shared; |
| #if defined(OS_CHROMEOS) |
| size_t swapped; |
| #endif |
| }; |
| |
| // Committed (resident + paged) memory usage broken down by |
| // private: These pages cannot be shared with any other process. |
| // mapped: These pages are mapped into the view of a section (backed by |
| // pagefile.sys) |
| // image: These pages are mapped into the view of an image section (backed by |
| // file system) |
| struct CommittedKBytes { |
| CommittedKBytes() : priv(0), mapped(0), image(0) {} |
| size_t priv; |
| size_t mapped; |
| size_t image; |
| }; |
| |
| #if defined(OS_LINUX) || defined(OS_ANDROID) |
| // Minor and major page fault counts since the process creation. |
| // Both counts are process-wide, and exclude child processes. |
| // |
| // minor: Number of page faults that didn't require disk IO. |
| // major: Number of page faults that required disk IO. |
| struct PageFaultCounts { |
| int64_t minor; |
| int64_t major; |
| }; |
| #endif // defined(OS_LINUX) || defined(OS_ANDROID) |
| |
| // Convert a POSIX timeval to microseconds. |
| BASE_EXPORT int64_t TimeValToMicroseconds(const struct timeval& tv); |
| |
| // Provides performance metrics for a specified process (CPU usage, memory and |
| // IO counters). Use CreateCurrentProcessMetrics() to get an instance for the |
| // current process, or CreateProcessMetrics() to get an instance for an |
| // arbitrary process. Then, access the information with the different get |
| // methods. |
| class BASE_EXPORT ProcessMetrics { |
| public: |
| ~ProcessMetrics(); |
| |
| // Creates a ProcessMetrics for the specified process. |
| #if !defined(OS_MACOSX) || defined(OS_IOS) |
| static std::unique_ptr<ProcessMetrics> CreateProcessMetrics( |
| ProcessHandle process); |
| #else |
| |
| // The port provider needs to outlive the ProcessMetrics object returned by |
| // this function. If NULL is passed as provider, the returned object |
| // only returns valid metrics if |process| is the current process. |
| static std::unique_ptr<ProcessMetrics> CreateProcessMetrics( |
| ProcessHandle process, |
| PortProvider* port_provider); |
| #endif // !defined(OS_MACOSX) || defined(OS_IOS) |
| |
| // Creates a ProcessMetrics for the current process. This a cross-platform |
| // convenience wrapper for CreateProcessMetrics(). |
| static std::unique_ptr<ProcessMetrics> CreateCurrentProcessMetrics(); |
| |
| // Returns the current space allocated for the pagefile, in bytes (these pages |
| // may or may not be in memory). On Linux, this returns the total virtual |
| // memory size. |
| size_t GetPagefileUsage() const; |
| // Returns the peak space allocated for the pagefile, in bytes. |
| size_t GetPeakPagefileUsage() const; |
| // Returns the current working set size, in bytes. On Linux, this returns |
| // the resident set size. |
| size_t GetWorkingSetSize() const; |
| // Returns the peak working set size, in bytes. |
| size_t GetPeakWorkingSetSize() const; |
| // Returns private and sharedusage, in bytes. Private bytes is the amount of |
| // memory currently allocated to a process that cannot be shared. Returns |
| // false on platform specific error conditions. Note: |private_bytes| |
| // returns 0 on unsupported OSes: prior to XP SP2. |
| bool GetMemoryBytes(size_t* private_bytes, size_t* shared_bytes) const; |
| // Fills a CommittedKBytes with both resident and paged |
| // memory usage as per definition of CommittedBytes. |
| void GetCommittedKBytes(CommittedKBytes* usage) const; |
| // Fills a WorkingSetKBytes containing resident private and shared memory |
| // usage in bytes, as per definition of WorkingSetBytes. Note that this |
| // function is somewhat expensive on Windows (a few ms per process). |
| bool GetWorkingSetKBytes(WorkingSetKBytes* ws_usage) const; |
| // Computes pss (proportional set size) of a process. Note that this |
| // function is somewhat expensive on Windows (a few ms per process). |
| bool GetProportionalSetSizeBytes(uint64_t* pss_bytes) const; |
| |
| #if defined(OS_MACOSX) |
| // Fills both CommitedKBytes and WorkingSetKBytes in a single operation. This |
| // is more efficient on Mac OS X, as the two can be retrieved with a single |
| // system call. |
| bool GetCommittedAndWorkingSetKBytes(CommittedKBytes* usage, |
| WorkingSetKBytes* ws_usage) const; |
| |
| struct TaskVMInfo { |
| // Only available on macOS 10.12+. |
| // Anonymous, non-discardable memory, including non-volatile IOKit. |
| // Measured in bytes. |
| uint64_t phys_footprint = 0; |
| |
| // Anonymous, non-discardable, non-compressed memory, excluding IOKit. |
| // Measured in bytes. |
| uint64_t internal = 0; |
| |
| // Compressed memory measured in bytes. |
| uint64_t compressed = 0; |
| }; |
| TaskVMInfo GetTaskVMInfo() const; |
| |
| // Returns private, shared, and total resident bytes. |locked_bytes| refers to |
| // bytes that must stay resident. |locked_bytes| only counts bytes locked by |
| // this task, not bytes locked by the kernel. |
| bool GetMemoryBytes(size_t* private_bytes, |
| size_t* shared_bytes, |
| size_t* resident_bytes, |
| size_t* locked_bytes) const; |
| #endif |
| |
| // Returns the percentage of time spent executing, across all threads of the |
| // process, in the interval since the last time the method was called. Since |
| // this considers the total execution time across all threads in a process, |
| // the result can easily exceed 100% in multi-thread processes running on |
| // multi-core systems. In general the result is therefore a value in the |
| // range 0% to SysInfo::NumberOfProcessors() * 100%. |
| // |
| // To obtain the percentage of total available CPU resources consumed by this |
| // process over the interval, the caller must divide by NumberOfProcessors(). |
| // |
| // Since this API measures usage over an interval, it will return zero on the |
| // first call, and an actual value only on the second and subsequent calls. |
| double GetPlatformIndependentCPUUsage(); |
| |
| // Returns the number of average idle cpu wakeups per second since the last |
| // call. |
| int GetIdleWakeupsPerSecond(); |
| |
| #if defined(OS_MACOSX) |
| // Returns the number of average "package idle exits" per second, which have |
| // a higher energy impact than a regular wakeup, since the last call. |
| // |
| // From the powermetrics man page: |
| // "With the exception of some Mac Pro systems, Mac and |
| // iOS systems are typically single package systems, wherein all CPUs are |
| // part of a single processor complex (typically a single IC die) with shared |
| // logic that can include (depending on system specifics) shared last level |
| // caches, an integrated memory controller etc. When all CPUs in the package |
| // are idle, the hardware can power-gate significant portions of the shared |
| // logic in addition to each individual processor's logic, as well as take |
| // measures such as placing DRAM in to self-refresh (also referred to as |
| // auto-refresh), place interconnects into lower-power states etc" |
| int GetPackageIdleWakeupsPerSecond(); |
| #endif |
| |
| // Retrieves accounting information for all I/O operations performed by the |
| // process. |
| // If IO information is retrieved successfully, the function returns true |
| // and fills in the IO_COUNTERS passed in. The function returns false |
| // otherwise. |
| bool GetIOCounters(IoCounters* io_counters) const; |
| |
| #if defined(OS_LINUX) || defined(OS_AIX) || defined(OS_ANDROID) |
| // Returns the number of file descriptors currently open by the process, or |
| // -1 on error. |
| int GetOpenFdCount() const; |
| |
| // Returns the soft limit of file descriptors that can be opened by the |
| // process, or -1 on error. |
| int GetOpenFdSoftLimit() const; |
| #endif // defined(OS_LINUX) || defined(OS_AIX) || defined(OS_ANDROID) |
| |
| #if defined(OS_LINUX) || defined(OS_ANDROID) |
| // Bytes of swap as reported by /proc/[pid]/status. |
| uint64_t GetVmSwapBytes() const; |
| |
| // Minor and major page fault count as reported by /proc/[pid]/stat. |
| // Returns true for success. |
| bool GetPageFaultCounts(PageFaultCounts* counts) const; |
| #endif // defined(OS_LINUX) || defined(OS_ANDROID) |
| |
| // Returns total memory usage of malloc. |
| size_t GetMallocUsage(); |
| |
| private: |
| #if !defined(OS_MACOSX) || defined(OS_IOS) |
| explicit ProcessMetrics(ProcessHandle process); |
| #else |
| ProcessMetrics(ProcessHandle process, PortProvider* port_provider); |
| #endif // !defined(OS_MACOSX) || defined(OS_IOS) |
| |
| #if defined(OS_LINUX) || defined(OS_ANDROID) | defined(OS_AIX) |
| bool GetWorkingSetKBytesStatm(WorkingSetKBytes* ws_usage) const; |
| #endif |
| |
| #if defined(OS_CHROMEOS) |
| bool GetWorkingSetKBytesTotmaps(WorkingSetKBytes *ws_usage) const; |
| #endif |
| |
| #if defined(OS_MACOSX) || defined(OS_LINUX) || defined(OS_AIX) |
| int CalculateIdleWakeupsPerSecond(uint64_t absolute_idle_wakeups); |
| #endif |
| #if defined(OS_MACOSX) |
| // The subset of wakeups that cause a "package exit" can be tracked on macOS. |
| // See |GetPackageIdleWakeupsForSecond| comment for more info. |
| int CalculatePackageIdleWakeupsPerSecond( |
| uint64_t absolute_package_idle_wakeups); |
| #endif |
| |
| #if defined(OS_WIN) |
| win::ScopedHandle process_; |
| #else |
| ProcessHandle process_; |
| #endif |
| |
| // Used to store the previous times and CPU usage counts so we can |
| // compute the CPU usage between calls. |
| TimeTicks last_cpu_time_; |
| int64_t last_system_time_; |
| |
| #if defined(OS_MACOSX) || defined(OS_LINUX) || defined(OS_AIX) |
| // Same thing for idle wakeups. |
| TimeTicks last_idle_wakeups_time_; |
| uint64_t last_absolute_idle_wakeups_; |
| #endif |
| |
| #if defined(OS_MACOSX) |
| // And same thing for package idle exit wakeups. |
| TimeTicks last_package_idle_wakeups_time_; |
| uint64_t last_absolute_package_idle_wakeups_; |
| #endif |
| |
| #if !defined(OS_IOS) |
| #if defined(OS_MACOSX) |
| // Queries the port provider if it's set. |
| mach_port_t TaskForPid(ProcessHandle process) const; |
| |
| PortProvider* port_provider_; |
| #elif defined(OS_POSIX) |
| // Jiffie count at the last_cpu_time_ we updated. |
| int last_cpu_; |
| #endif // defined(OS_POSIX) |
| #endif // !defined(OS_IOS) |
| |
| DISALLOW_COPY_AND_ASSIGN(ProcessMetrics); |
| }; |
| |
| // Returns the memory committed by the system in KBytes. |
| // Returns 0 if it can't compute the commit charge. |
| BASE_EXPORT size_t GetSystemCommitCharge(); |
| |
| // Returns the number of bytes in a memory page. Do not use this to compute |
| // the number of pages in a block of memory for calling mincore(). On some |
| // platforms, e.g. iOS, mincore() uses a different page size from what is |
| // returned by GetPageSize(). |
| BASE_EXPORT size_t GetPageSize(); |
| |
| // Returns the maximum number of file descriptors that can be open by a process |
| // at once. If the number is unavailable, a conservative best guess is returned. |
| BASE_EXPORT size_t GetMaxFds(); |
| |
| #if defined(OS_POSIX) |
| // Sets the file descriptor soft limit to |max_descriptors| or the OS hard |
| // limit, whichever is lower. |
| BASE_EXPORT void SetFdLimit(unsigned int max_descriptors); |
| #endif // defined(OS_POSIX) |
| |
| #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX) || \ |
| defined(OS_ANDROID) || defined(OS_AIX) || defined(OS_FUCHSIA) |
| // Data about system-wide memory consumption. Values are in KB. Available on |
| // Windows, Mac, Linux, Android and Chrome OS. |
| // |
| // Total memory are available on all platforms that implement |
| // GetSystemMemoryInfo(). Total/free swap memory are available on all platforms |
| // except on Mac. Buffers/cached/active_anon/inactive_anon/active_file/ |
| // inactive_file/dirty/reclaimable/pswpin/pswpout/pgmajfault are available on |
| // Linux/Android/Chrome OS. Shmem/slab/gem_objects/gem_size are Chrome OS only. |
| // Speculative/file_backed/purgeable are Mac and iOS only. |
| // Free is absent on Windows (see "avail_phys" below). |
| struct BASE_EXPORT SystemMemoryInfoKB { |
| SystemMemoryInfoKB(); |
| SystemMemoryInfoKB(const SystemMemoryInfoKB& other); |
| |
| // Serializes the platform specific fields to value. |
| std::unique_ptr<DictionaryValue> ToValue() const; |
| |
| int total = 0; |
| |
| #if !defined(OS_WIN) |
| int free = 0; |
| #endif |
| |
| #if defined(OS_WIN) |
| // "This is the amount of physical memory that can be immediately reused |
| // without having to write its contents to disk first. It is the sum of the |
| // size of the standby, free, and zero lists." (MSDN). |
| // Standby: not modified pages of physical ram (file-backed memory) that are |
| // not actively being used. |
| int avail_phys = 0; |
| #endif |
| |
| #if defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_AIX) |
| // This provides an estimate of available memory as described here: |
| // https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34e431b0ae398fc54ea69ff85ec700722c9da773 |
| // NOTE: this is ONLY valid in kernels 3.14 and up. Its value will always |
| // be 0 in earlier kernel versions. |
| // Note: it includes _all_ file-backed memory (active + inactive). |
| int available = 0; |
| #endif |
| |
| #if !defined(OS_MACOSX) |
| int swap_total = 0; |
| int swap_free = 0; |
| #endif |
| |
| #if defined(OS_ANDROID) || defined(OS_LINUX) || defined(OS_AIX) || \ |
| defined(OS_FUCHSIA) |
| int buffers = 0; |
| int cached = 0; |
| int active_anon = 0; |
| int inactive_anon = 0; |
| int active_file = 0; |
| int inactive_file = 0; |
| int dirty = 0; |
| int reclaimable = 0; |
| #endif // defined(OS_ANDROID) || defined(OS_LINUX) || defined(OS_AIX) || |
| // defined(OS_FUCHSIA) |
| |
| #if defined(OS_CHROMEOS) |
| int shmem = 0; |
| int slab = 0; |
| // Gem data will be -1 if not supported. |
| int gem_objects = -1; |
| long long gem_size = -1; |
| #endif // defined(OS_CHROMEOS) |
| |
| #if defined(OS_MACOSX) |
| int speculative = 0; |
| int file_backed = 0; |
| int purgeable = 0; |
| #endif // defined(OS_MACOSX) |
| }; |
| |
| // On Linux/Android/Chrome OS, system-wide memory consumption data is parsed |
| // from /proc/meminfo and /proc/vmstat. On Windows/Mac, it is obtained using |
| // system API calls. |
| // |
| // Fills in the provided |meminfo| structure. Returns true on success. |
| // Exposed for memory debugging widget. |
| BASE_EXPORT bool GetSystemMemoryInfo(SystemMemoryInfoKB* meminfo); |
| |
| #endif // defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX) || |
| // defined(OS_ANDROID) || defined(OS_AIX) || defined(OS_FUCHSIA) |
| |
| #if defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_AIX) |
| // Parse the data found in /proc/<pid>/stat and return the sum of the |
| // CPU-related ticks. Returns -1 on parse error. |
| // Exposed for testing. |
| BASE_EXPORT int ParseProcStatCPU(StringPiece input); |
| |
| // Get the number of threads of |process| as available in /proc/<pid>/stat. |
| // This should be used with care as no synchronization with running threads is |
| // done. This is mostly useful to guarantee being single-threaded. |
| // Returns 0 on failure. |
| BASE_EXPORT int GetNumberOfThreads(ProcessHandle process); |
| |
| // /proc/self/exe refers to the current executable. |
| BASE_EXPORT extern const char kProcSelfExe[]; |
| |
| // Parses a string containing the contents of /proc/meminfo |
| // returns true on success or false for a parsing error |
| // Exposed for testing. |
| BASE_EXPORT bool ParseProcMeminfo(StringPiece input, |
| SystemMemoryInfoKB* meminfo); |
| |
| // Data from /proc/vmstat. |
| struct BASE_EXPORT VmStatInfo { |
| // Serializes the platform specific fields to value. |
| std::unique_ptr<DictionaryValue> ToValue() const; |
| |
| unsigned long pswpin = 0; |
| unsigned long pswpout = 0; |
| unsigned long pgmajfault = 0; |
| }; |
| |
| // Retrieves data from /proc/vmstat about system-wide vm operations. |
| // Fills in the provided |vmstat| structure. Returns true on success. |
| BASE_EXPORT bool GetVmStatInfo(VmStatInfo* vmstat); |
| |
| // Parses a string containing the contents of /proc/vmstat |
| // returns true on success or false for a parsing error |
| // Exposed for testing. |
| BASE_EXPORT bool ParseProcVmstat(StringPiece input, VmStatInfo* vmstat); |
| |
| // Data from /proc/diskstats about system-wide disk I/O. |
| struct BASE_EXPORT SystemDiskInfo { |
| SystemDiskInfo(); |
| SystemDiskInfo(const SystemDiskInfo& other); |
| |
| // Serializes the platform specific fields to value. |
| std::unique_ptr<Value> ToValue() const; |
| |
| uint64_t reads = 0; |
| uint64_t reads_merged = 0; |
| uint64_t sectors_read = 0; |
| uint64_t read_time = 0; |
| uint64_t writes = 0; |
| uint64_t writes_merged = 0; |
| uint64_t sectors_written = 0; |
| uint64_t write_time = 0; |
| uint64_t io = 0; |
| uint64_t io_time = 0; |
| uint64_t weighted_io_time = 0; |
| }; |
| |
| // Checks whether the candidate string is a valid disk name, [hsv]d[a-z]+ |
| // for a generic disk or mmcblk[0-9]+ for the MMC case. |
| // Names of disk partitions (e.g. sda1) are not valid. |
| BASE_EXPORT bool IsValidDiskName(StringPiece candidate); |
| |
| // Retrieves data from /proc/diskstats about system-wide disk I/O. |
| // Fills in the provided |diskinfo| structure. Returns true on success. |
| BASE_EXPORT bool GetSystemDiskInfo(SystemDiskInfo* diskinfo); |
| |
| // Returns the amount of time spent in user space since boot across all CPUs. |
| BASE_EXPORT TimeDelta GetUserCpuTimeSinceBoot(); |
| |
| #endif // defined(OS_LINUX) || defined(OS_ANDROID) |
| |
| #if defined(OS_CHROMEOS) |
| // Data from files in directory /sys/block/zram0 about ZRAM usage. |
| struct BASE_EXPORT SwapInfo { |
| SwapInfo() |
| : num_reads(0), |
| num_writes(0), |
| compr_data_size(0), |
| orig_data_size(0), |
| mem_used_total(0) { |
| } |
| |
| // Serializes the platform specific fields to value. |
| std::unique_ptr<Value> ToValue() const; |
| |
| uint64_t num_reads = 0; |
| uint64_t num_writes = 0; |
| uint64_t compr_data_size = 0; |
| uint64_t orig_data_size = 0; |
| uint64_t mem_used_total = 0; |
| }; |
| |
| // Parses a string containing the contents of /sys/block/zram0/mm_stat. |
| // This should be used for the new ZRAM sysfs interfaces. |
| // Returns true on success or false for a parsing error. |
| // Exposed for testing. |
| BASE_EXPORT bool ParseZramMmStat(StringPiece mm_stat_data, SwapInfo* swap_info); |
| |
| // Parses a string containing the contents of /sys/block/zram0/stat |
| // This should be used for the new ZRAM sysfs interfaces. |
| // Returns true on success or false for a parsing error. |
| // Exposed for testing. |
| BASE_EXPORT bool ParseZramStat(StringPiece stat_data, SwapInfo* swap_info); |
| |
| // In ChromeOS, reads files from /sys/block/zram0 that contain ZRAM usage data. |
| // Fills in the provided |swap_data| structure. |
| // Returns true on success or false for a parsing error. |
| BASE_EXPORT bool GetSwapInfo(SwapInfo* swap_info); |
| #endif // defined(OS_CHROMEOS) |
| |
| // Collects and holds performance metrics for system memory and disk. |
| // Provides functionality to retrieve the data on various platforms and |
| // to serialize the stored data. |
| class SystemMetrics { |
| public: |
| SystemMetrics(); |
| |
| static SystemMetrics Sample(); |
| |
| // Serializes the system metrics to value. |
| std::unique_ptr<Value> ToValue() const; |
| |
| private: |
| FRIEND_TEST_ALL_PREFIXES(SystemMetricsTest, SystemMetrics); |
| |
| size_t committed_memory_; |
| #if defined(OS_LINUX) || defined(OS_ANDROID) |
| SystemMemoryInfoKB memory_info_; |
| VmStatInfo vmstat_info_; |
| SystemDiskInfo disk_info_; |
| #endif |
| #if defined(OS_CHROMEOS) |
| SwapInfo swap_info_; |
| #endif |
| }; |
| |
| #if defined(OS_MACOSX) && !defined(OS_IOS) |
| enum class MachVMRegionResult { |
| // There were no more memory regions between |address| and the end of the |
| // virtual address space. |
| Finished, |
| |
| // All output parameters are invalid. |
| Error, |
| |
| // All output parameters are filled in. |
| Success |
| }; |
| |
| // Returns info on the first memory region at or after |address|, including |
| // resident memory and share mode. On Success, |size| reflects the size of the |
| // memory region. |
| // |size| and |info| are output parameters, only valid on Success. |
| // |address| is an in-out parameter, than represents both the address to start |
| // looking, and the start address of the memory region. |
| BASE_EXPORT MachVMRegionResult GetTopInfo(mach_port_t task, |
| mach_vm_size_t* size, |
| mach_vm_address_t* address, |
| vm_region_top_info_data_t* info); |
| |
| // Returns info on the first memory region at or after |address|, including |
| // protection values. On Success, |size| reflects the size of the |
| // memory region. |
| // Returns info on the first memory region at or after |address|, including |
| // resident memory and share mode. |
| // |size| and |info| are output parameters, only valid on Success. |
| BASE_EXPORT MachVMRegionResult GetBasicInfo(mach_port_t task, |
| mach_vm_size_t* size, |
| mach_vm_address_t* address, |
| vm_region_basic_info_64* info); |
| #endif // defined(OS_MACOSX) && !defined(OS_IOS) |
| |
| } // namespace base |
| |
| #endif // BASE_PROCESS_PROCESS_METRICS_H_ |