03c2b2889f
This is a follow-up to 5d2036b5f3, and also makes
the "machinectl clean" verb asynchronous, after all it's little more than a
series of image removals.
The changes required to make this happen are a bit more comprehensive as we
need to pass information about deleted images back to the client, as well as
information about the image we failed on if we failed on one. Hence, create a
temporary file in /tmp, serialize that data into, and read it from the parent
after the operation is complete.
91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
#pragma once
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <dirent.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include "macro.h"
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#include "time-util.h"
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typedef enum {
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WRITE_STRING_FILE_CREATE = 1,
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WRITE_STRING_FILE_ATOMIC = 2,
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WRITE_STRING_FILE_AVOID_NEWLINE = 4,
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WRITE_STRING_FILE_VERIFY_ON_FAILURE = 8,
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} WriteStringFileFlags;
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int write_string_stream(FILE *f, const char *line, bool enforce_newline);
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int write_string_file(const char *fn, const char *line, WriteStringFileFlags flags);
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int read_one_line_file(const char *fn, char **line);
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int read_full_file(const char *fn, char **contents, size_t *size);
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int read_full_stream(FILE *f, char **contents, size_t *size);
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int verify_file(const char *fn, const char *blob, bool accept_extra_nl);
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int parse_env_file(const char *fname, const char *separator, ...) _sentinel_;
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int load_env_file(FILE *f, const char *fname, const char *separator, char ***l);
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int load_env_file_pairs(FILE *f, const char *fname, const char *separator, char ***l);
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int write_env_file(const char *fname, char **l);
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int executable_is_script(const char *path, char **interpreter);
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int get_proc_field(const char *filename, const char *pattern, const char *terminator, char **field);
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DIR *xopendirat(int dirfd, const char *name, int flags);
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int search_and_fopen(const char *path, const char *mode, const char *root, const char **search, FILE **_f);
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int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f);
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#define FOREACH_LINE(line, f, on_error) \
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for (;;) \
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if (!fgets(line, sizeof(line), f)) { \
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if (ferror(f)) { \
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on_error; \
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} \
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break; \
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} else
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int fflush_and_check(FILE *f);
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int fopen_temporary(const char *path, FILE **_f, char **_temp_path);
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int mkostemp_safe(char *pattern, int flags);
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int tempfn_xxxxxx(const char *p, const char *extra, char **ret);
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int tempfn_random(const char *p, const char *extra, char **ret);
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int tempfn_random_child(const char *p, const char *extra, char **ret);
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int write_timestamp_file_atomic(const char *fn, usec_t n);
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int read_timestamp_file(const char *fn, usec_t *ret);
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int fputs_with_space(FILE *f, const char *s, const char *separator, bool *space);
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int open_tmpfile_unlinkable(const char *directory, int flags);
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int open_tmpfile_linkable(const char *target, int flags, char **ret_path);
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int link_tmpfile(int fd, const char *path, const char *target);
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int read_nul_string(FILE *f, char **ret);
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