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[Runtime] CRaC: no need to close the files that open with write&appen…
…d mode when do checkpointing. Summary: Add a new option CRaCAppendOnlyLogFiles to configure the files can be ignored when do checkpointing, and create an empty file if not exist when restore. Testing: jdk/crac/AppendOnlyFileTest.java Reviewers: lei.yul,denghui.ddh Issue: dragonwell-project#867
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| /* | ||
| * Copyright (c) 2024 Alibaba Group Holding Limited. All Rights Reserved. | ||
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| * | ||
| * This code is free software; you can redistribute it and/or modify it | ||
| * under the terms of the GNU General Public License version 2 only, as | ||
| * published by the Free Software Foundation. Alibaba designates this | ||
| * particular file as subject to the "Classpath" exception as provided | ||
| * by Oracle in the LICENSE file that accompanied this code. | ||
| * | ||
| * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| * version 2 for more details (a copy is included in the LICENSE file that | ||
| * accompanied this code). | ||
| * | ||
| * You should have received a copy of the GNU General Public License version | ||
| * 2 along with this work; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| * | ||
| */ | ||
|
|
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| #include <errno.h> | ||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
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|
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| #include "crac_linux.hpp" | ||
| #include "runtime/globals.hpp" | ||
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| //the value should equal to PseudoPersistentMode.SKIP_LOG_FILES in criuengine.c | ||
| #define SKIP_LOG_FILES_MODE 0x20 | ||
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| PseudoPersistent::PseudoPersistent(GrowableArray<PseudoPersistentFileDesc> | ||
| *ppfd, const char *config) : | ||
| _ppfd(ppfd), _append_files(NULL), _append_file_configs(NULL) { | ||
| if (config == NULL) { | ||
| return; | ||
| } | ||
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| _append_file_configs = new(ResourceObj::C_HEAP, mtInternal) GrowableArray<AppendFileConfig *>(1, true); | ||
| if (!strcmp(config, "*")) { | ||
| AppendFileConfig *cfg = new AppendFileConfig(all, NULL, NULL); | ||
| _append_file_configs->append(cfg); | ||
| return; | ||
| } | ||
|
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| const char *p = config, *s = config; | ||
| while (*p) { | ||
| if (*(p + 1) == ',' || *(p + 1) == '\0') { | ||
| if (p - s > 2 && *s == '*' && *(s + 1) == '.') { | ||
| _append_file_configs->append(new AppendFileConfig(by_extension, s + 2, p + 1)); | ||
| } else { | ||
| _append_file_configs->append(new AppendFileConfig(by_full_path, s, p + 1)); | ||
| } | ||
| if (*(p + 1) == ',') { | ||
| p += 2; | ||
| s = p; | ||
| } else { | ||
| break; | ||
| } | ||
| } else { | ||
| p++; | ||
| } | ||
| } | ||
| } | ||
|
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|
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| bool PseudoPersistent::write_marked(const char* image_dir) { | ||
| char *path; | ||
| if (-1 == asprintf(&path, "%s/pseudopersistent", image_dir)) { | ||
| return false; | ||
| } | ||
| FILE *f = fopen(path, "w"); | ||
| if (f == NULL) { | ||
| fprintf(stderr, "open file: %s for write failed, error: %s\n", | ||
| path, strerror(errno)); | ||
| free(path); | ||
| return false; | ||
| } | ||
|
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||
| if (_ppfd) { | ||
| for(int i = 0 ; i < _ppfd->length();i++) { | ||
| PseudoPersistentFileDesc *ppfd = _ppfd->adr_at(i); | ||
| if (ppfd->_mark) { | ||
| fprintf(f, "%d,%s\n", ppfd->_mode, ppfd->_path); | ||
| } | ||
| } | ||
| } | ||
|
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| if (_append_files) { | ||
| for (int i = 0; i < _append_files->length(); i++) { | ||
| fprintf(f, "%d,%s\n", SKIP_LOG_FILES_MODE, _append_files->at(i)); | ||
| } | ||
| } | ||
|
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| fclose(f); | ||
| free(path); | ||
| return true; | ||
| } | ||
|
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||
| bool PseudoPersistent::in_registered_list(const char *path) { | ||
| if (!_ppfd) { | ||
| return false; | ||
| } | ||
| int j = 0; | ||
| while (j < _ppfd->length()) { | ||
| PseudoPersistentFileDesc *ppfd = _ppfd->adr_at(j); | ||
| int r = strcmp(ppfd->_path, path); | ||
| if (r == 0) { | ||
| ppfd->_mark = true; | ||
| return true; | ||
| } else if (r > 0) { | ||
| return false; | ||
| } | ||
| ++j; | ||
| } | ||
| return false; | ||
| } | ||
|
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| bool PseudoPersistent::in_configured_list(const char* path, int fd) { | ||
| if (_append_file_configs == NULL) { | ||
| return false; | ||
| } | ||
|
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||
| int ret = fcntl(fd, F_GETFL); | ||
| if (ret != -1 && ((ret & O_ACCMODE) == O_WRONLY) && (ret & O_APPEND)) { | ||
| for (int i = 0; i < _append_file_configs->length(); i++) { | ||
| if (_append_file_configs->at(i)->match(path)) { | ||
| if (_append_files == NULL) { | ||
| _append_files = new(ResourceObj::C_HEAP, mtInternal) GrowableArray<char *>(2, true); | ||
| } | ||
| char *copy_path = NEW_C_HEAP_ARRAY(char, strlen(path) + 1, mtInternal); | ||
| strcpy(copy_path, path); | ||
| _append_files->append(copy_path); | ||
| return true; | ||
| } | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
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| bool PseudoPersistent::AppendFileConfig::match(const char *file) { | ||
| if (_type == all) { | ||
| return true; | ||
| } else if (_type == by_extension) { | ||
| const char *p = strrchr(file, '.'); | ||
| return p != NULL && strlen(p + 1) == _size && !strncmp(p + 1, _start_ext_or_file, _size); | ||
| } else if (_type == by_full_path) { | ||
| return strlen(file) == _size && !strncmp(file, _start_ext_or_file, _size); | ||
| } | ||
| return false; | ||
| } | ||
|
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| PseudoPersistent::~PseudoPersistent() { | ||
| if (_append_files != NULL) { | ||
| for (int i = 0; i < _append_files->length(); i++) { | ||
| FREE_C_HEAP_ARRAY(char, _append_files->at(i)); | ||
| } | ||
| delete _append_files; | ||
| _append_files = NULL; | ||
| } | ||
|
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| if (_append_file_configs != NULL) { | ||
| for (int i = 0; i < _append_file_configs->length(); i++) { | ||
| delete _append_file_configs->at(i); | ||
| } | ||
| delete _append_file_configs; | ||
| _append_file_configs = NULL; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| /* | ||
| * Copyright (c) 2024 Alibaba Group Holding Limited. All Rights Reserved. | ||
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| * | ||
| * This code is free software; you can redistribute it and/or modify it | ||
| * under the terms of the GNU General Public License version 2 only, as | ||
| * published by the Free Software Foundation. Alibaba designates this | ||
| * particular file as subject to the "Classpath" exception as provided | ||
| * by Oracle in the LICENSE file that accompanied this code. | ||
| * | ||
| * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| * version 2 for more details (a copy is included in the LICENSE file that | ||
| * accompanied this code). | ||
| * | ||
| * You should have received a copy of the GNU General Public License version | ||
| * 2 along with this work; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| * | ||
| */ | ||
|
|
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| #ifndef OS_LINUX_CRAC_LINUX_HPP | ||
| #define OS_LINUX_CRAC_LINUX_HPP | ||
| #include "utilities/growableArray.hpp" | ||
|
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| struct PseudoPersistentFileDesc { | ||
| int _mode; | ||
| bool _mark; | ||
| const char* _path; | ||
| PseudoPersistentFileDesc(int mode, const char *path) : | ||
| _mode(mode), | ||
| _path(path), | ||
| _mark(false) | ||
| {} | ||
|
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| PseudoPersistentFileDesc(): | ||
| _mode(0), | ||
| _path(NULL), | ||
| _mark(false) | ||
| {} | ||
| }; | ||
|
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| class PseudoPersistent { | ||
| private: | ||
| enum AppendFileConfigType { | ||
| all, | ||
| by_extension, | ||
| by_full_path | ||
| }; | ||
|
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| class AppendFileConfig : public CHeapObj<mtInternal> { | ||
| AppendFileConfigType _type; | ||
| size_t _size; | ||
| const char *_start_ext_or_file; | ||
| public: | ||
| AppendFileConfig(AppendFileConfigType type, const char *start_ext_or_file, const char *end_ext_or_file) | ||
| : _type(type), _start_ext_or_file(start_ext_or_file), _size(0) { | ||
| if (start_ext_or_file && end_ext_or_file) { | ||
| _size = end_ext_or_file - start_ext_or_file; | ||
| } | ||
| } | ||
| bool match(const char *file); | ||
| }; | ||
|
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| private: | ||
| GrowableArray<PseudoPersistentFileDesc> *_ppfd; | ||
| GrowableArray<char *> *_append_files; | ||
| GrowableArray<AppendFileConfig *> *_append_file_configs; | ||
| public: | ||
| PseudoPersistent(GrowableArray<PseudoPersistentFileDesc>* ppfd, const char* config); | ||
| ~PseudoPersistent(); | ||
|
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| bool test_and_mark(const char *path, int fd) { | ||
| return in_registered_list(path) || in_configured_list(path, fd); | ||
| } | ||
|
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| bool write_marked(const char* image_dir); | ||
| private: | ||
| bool in_configured_list(const char* path, int fd); | ||
| bool in_registered_list(const char *path); | ||
| }; | ||
|
|
||
| #endif //OS_LINUX_CRAC_LINUX_HPP |
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