| // Copyright 2017 The Fuchsia Authors |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #pragma once |
| |
| #include <lib/user_copy/user_ptr.h> |
| #include <zircon/syscalls/object.h> |
| #include <zircon/types.h> |
| #include <fbl/ref_ptr.h> |
| |
| class ProcessDispatcher; |
| class VmAspace; |
| |
| // Walks the VmAspace and writes entries that describe it into |maps|, which |
| // must point to enough memory for |max| entries. The number of entries |
| // written is returned via |actual|, and the number entries that could have |
| // been written is returned via |available|. |
| // NOTE: Code outside of the syscall layer should not typically know about |
| // user_ptrs; do not use this pattern as an example. |
| zx_status_t GetVmAspaceMaps(fbl::RefPtr<VmAspace> aspace, |
| user_out_ptr<zx_info_maps_t> maps, size_t max, |
| size_t* actual, size_t* available); |
| |
| // Walks the VmAspace and writes entries that describe its mapped VMOs into |
| // |vmos|, which must point to enough memory for |max| entries. The number of |
| // entries written is returned via |actual|, and the number entries that could |
| // have been written is returned via |available|. |
| // NOTE: Code outside of the syscall layer should not typically know about |
| // user_ptrs; do not use this pattern as an example. |
| zx_status_t GetVmAspaceVmos(fbl::RefPtr<VmAspace> aspace, |
| user_out_ptr<zx_info_vmo_t> vmos, size_t max, |
| size_t* actual, size_t* available); |
| |
| // For every VMO in the process's handle table, writes an entry into |vmos|, |
| // which must point to enough memory for |max| entries. The number of entries |
| // written is returned via |actual|, and the number entries that could have |
| // been written is returned via |available|. |
| // NOTE: Code outside of the syscall layer should not typically know about |
| // user_ptrs; do not use this pattern as an example. |
| zx_status_t GetProcessVmosViaHandles(ProcessDispatcher* process, |
| user_out_ptr<zx_info_vmo_t> vmos, size_t max, |
| size_t* actual, size_t* available); |
| |
| // Prints (with the supplied prefix) the number of mapped, committed bytes for |
| // each process in the system whose page count > |min_pages|. Does not take |
| // sharing into account, and does not count unmapped VMOs. |
| void DumpProcessMemoryUsage(const char* prefix, size_t min_pages); |