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ee103a5d9e
* it's called ROOT_FLAG_VMEM * it does not imply any protection, ROOT_FLAG_MPROTECT was a misnomer * it means that the memory is allocated using my_virtual_mem_commit, not my_malloc, so not on heap * memory allocated this way can be protected with my_virtual_mem_protect() * thus root using ROOT_FLAG_VMEM can be protected with protect_root() Assisted-By: Claude:claude-5-sonnet
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/* Copyright (c) 2025, 2026, MariaDB plc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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#pragma once
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/*
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Functionality for handling virtual memory
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(reserve, commit, decommit, release)
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*/
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#include <stddef.h> /*size_t*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum my_vmem_prot { MY_VMEM_READONLY= 0, MY_VMEM_READWRITE };
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char *my_virtual_mem_reserve(size_t *size);
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char *my_virtual_mem_commit(char *ptr, size_t size);
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void my_virtual_mem_decommit(char *ptr, size_t size);
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void my_virtual_mem_release(char *ptr, size_t size);
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void my_virtual_mem_protect(void *ptr, size_t size, enum my_vmem_prot prot);
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#ifdef __cplusplus
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}
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#endif
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