./tools/notsd-move

1 files changed, 0 insertions, 326 deletions

diff --git a/src/import/export-tar.c b/src/import/export-tar.c
deleted file mode 100644
index 3bb6027431..0000000000
--- a/src/import/export-tar.c
+++ /dev/null
@@ -1,326 +0,0 @@
-/***
-  This file is part of systemd.
-
-  Copyright 2015 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd 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
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "sd-daemon.h"
-
-#include "alloc-util.h"
-#include "btrfs-util.h"
-#include "export-tar.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "import-common.h"
-#include "process-util.h"
-#include "ratelimit.h"
-#include "string-util.h"
-#include "util.h"
-
-#define COPY_BUFFER_SIZE (16*1024)
-
-struct TarExport {
-        sd_event *event;
-
-        TarExportFinished on_finished;
-        void *userdata;
-
-        char *path;
-        char *temp_path;
-
-        int output_fd;
-        int tar_fd;
-
-        ImportCompress compress;
-
-        sd_event_source *output_event_source;
-
-        void *buffer;
-        size_t buffer_size;
-        size_t buffer_allocated;
-
-        uint64_t written_compressed;
-        uint64_t written_uncompressed;
-
-        pid_t tar_pid;
-
-        struct stat st;
-        uint64_t quota_referenced;
-
-        unsigned last_percent;
-        RateLimit progress_rate_limit;
-
-        bool eof;
-        bool tried_splice;
-};
-
-TarExport *tar_export_unref(TarExport *e) {
-        if (!e)
-                return NULL;
-
-        sd_event_source_unref(e->output_event_source);
-
-        if (e->tar_pid > 1) {
-                (void) kill_and_sigcont(e->tar_pid, SIGKILL);
-                (void) wait_for_terminate(e->tar_pid, NULL);
-        }
-
-        if (e->temp_path) {
-                (void) btrfs_subvol_remove(e->temp_path, BTRFS_REMOVE_QUOTA);
-                free(e->temp_path);
-        }
-
-        import_compress_free(&e->compress);
-
-        sd_event_unref(e->event);
-
-        safe_close(e->tar_fd);
-
-        free(e->buffer);
-        free(e->path);
-        return mfree(e);
-}
-
-int tar_export_new(
-                TarExport **ret,
-                sd_event *event,
-                TarExportFinished on_finished,
-                void *userdata) {
-
-        _cleanup_(tar_export_unrefp) TarExport *e = NULL;
-        int r;
-
-        assert(ret);
-
-        e = new0(TarExport, 1);
-        if (!e)
-                return -ENOMEM;
-
-        e->output_fd = e->tar_fd = -1;
-        e->on_finished = on_finished;
-        e->userdata = userdata;
-        e->quota_referenced = (uint64_t) -1;
-
-        RATELIMIT_INIT(e->progress_rate_limit, 100 * USEC_PER_MSEC, 1);
-        e->last_percent = (unsigned) -1;
-
-        if (event)
-                e->event = sd_event_ref(event);
-        else {
-                r = sd_event_default(&e->event);
-                if (r < 0)
-                        return r;
-        }
-
-        *ret = e;
-        e = NULL;
-
-        return 0;
-}
-
-static void tar_export_report_progress(TarExport *e) {
-        unsigned percent;
-        assert(e);
-
-        /* Do we have any quota info? If not, we don't know anything about the progress */
-        if (e->quota_referenced == (uint64_t) -1)
-                return;
-
-        if (e->written_uncompressed >= e->quota_referenced)
-                percent = 100;
-        else
-                percent = (unsigned) ((e->written_uncompressed * UINT64_C(100)) / e->quota_referenced);
-
-        if (percent == e->last_percent)
-                return;
-
-        if (!ratelimit_test(&e->progress_rate_limit))
-                return;
-
-        sd_notifyf(false, "X_IMPORT_PROGRESS=%u", percent);
-        log_info("Exported %u%%.", percent);
-
-        e->last_percent = percent;
-}
-
-static int tar_export_process(TarExport *e) {
-        ssize_t l;
-        int r;
-
-        assert(e);
-
-        if (!e->tried_splice && e->compress.type == IMPORT_COMPRESS_UNCOMPRESSED) {
-
-                l = splice(e->tar_fd, NULL, e->output_fd, NULL, COPY_BUFFER_SIZE, 0);
-                if (l < 0) {
-                        if (errno == EAGAIN)
-                                return 0;
-
-                        e->tried_splice = true;
-                } else if (l == 0) {
-                        r = 0;
-                        goto finish;
-                } else {
-                        e->written_uncompressed += l;
-                        e->written_compressed += l;
-
-                        tar_export_report_progress(e);
-
-                        return 0;
-                }
-        }
-
-        while (e->buffer_size <= 0) {
-                uint8_t input[COPY_BUFFER_SIZE];
-
-                if (e->eof) {
-                        r = 0;
-                        goto finish;
-                }
-
-                l = read(e->tar_fd, input, sizeof(input));
-                if (l < 0) {
-                        r = log_error_errno(errno, "Failed to read tar file: %m");
-                        goto finish;
-                }
-
-                if (l == 0) {
-                        e->eof = true;
-                        r = import_compress_finish(&e->compress, &e->buffer, &e->buffer_size, &e->buffer_allocated);
-                } else {
-                        e->written_uncompressed += l;
-                        r = import_compress(&e->compress, input, l, &e->buffer, &e->buffer_size, &e->buffer_allocated);
-                }
-                if (r < 0) {
-                        r = log_error_errno(r, "Failed to encode: %m");
-                        goto finish;
-                }
-        }
-
-        l = write(e->output_fd, e->buffer, e->buffer_size);
-        if (l < 0) {
-                if (errno == EAGAIN)
-                        return 0;
-
-                r = log_error_errno(errno, "Failed to write output file: %m");
-                goto finish;
-        }
-
-        assert((size_t) l <= e->buffer_size);
-        memmove(e->buffer, (uint8_t*) e->buffer + l, e->buffer_size - l);
-        e->buffer_size -= l;
-        e->written_compressed += l;
-
-        tar_export_report_progress(e);
-
-        return 0;
-
-finish:
-        if (e->on_finished)
-                e->on_finished(e, r, e->userdata);
-        else
-                sd_event_exit(e->event, r);
-
-        return 0;
-}
-
-static int tar_export_on_output(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
-        TarExport *i = userdata;
-
-        return tar_export_process(i);
-}
-
-static int tar_export_on_defer(sd_event_source *s, void *userdata) {
-        TarExport *i = userdata;
-
-        return tar_export_process(i);
-}
-
-int tar_export_start(TarExport *e, const char *path, int fd, ImportCompressType compress) {
-        _cleanup_close_ int sfd = -1;
-        int r;
-
-        assert(e);
-        assert(path);
-        assert(fd >= 0);
-        assert(compress < _IMPORT_COMPRESS_TYPE_MAX);
-        assert(compress != IMPORT_COMPRESS_UNKNOWN);
-
-        if (e->output_fd >= 0)
-                return -EBUSY;
-
-        sfd = open(path, O_DIRECTORY|O_RDONLY|O_NOCTTY|O_CLOEXEC);
-        if (sfd < 0)
-                return -errno;
-
-        if (fstat(sfd, &e->st) < 0)
-                return -errno;
-
-        r = fd_nonblock(fd, true);
-        if (r < 0)
-                return r;
-
-        r = free_and_strdup(&e->path, path);
-        if (r < 0)
-                return r;
-
-        e->quota_referenced = (uint64_t) -1;
-
-        if (e->st.st_ino == 256) { /* might be a btrfs subvolume? */
-                BtrfsQuotaInfo q;
-
-                r = btrfs_subvol_get_subtree_quota_fd(sfd, 0, &q);
-                if (r >= 0)
-                        e->quota_referenced = q.referenced;
-
-                e->temp_path = mfree(e->temp_path);
-
-                r = tempfn_random(path, NULL, &e->temp_path);
-                if (r < 0)
-                        return r;
-
-                /* Let's try to make a snapshot, if we can, so that the export is atomic */
-                r = btrfs_subvol_snapshot_fd(sfd, e->temp_path, BTRFS_SNAPSHOT_READ_ONLY|BTRFS_SNAPSHOT_RECURSIVE);
-                if (r < 0) {
-                        log_debug_errno(r, "Couldn't create snapshot %s of %s, not exporting atomically: %m", e->temp_path, path);
-                        e->temp_path = mfree(e->temp_path);
-                }
-        }
-
-        r = import_compress_init(&e->compress, compress);
-        if (r < 0)
-                return r;
-
-        r = sd_event_add_io(e->event, &e->output_event_source, fd, EPOLLOUT, tar_export_on_output, e);
-        if (r == -EPERM) {
-                r = sd_event_add_defer(e->event, &e->output_event_source, tar_export_on_defer, e);
-                if (r < 0)
-                        return r;
-
-                r = sd_event_source_set_enabled(e->output_event_source, SD_EVENT_ON);
-        }
-        if (r < 0)
-                return r;
-
-        e->tar_fd = import_fork_tar_c(e->temp_path ?: e->path, &e->tar_pid);
-        if (e->tar_fd < 0) {
-                e->output_event_source = sd_event_source_unref(e->output_event_source);
-                return e->tar_fd;
-        }
-
-        e->output_fd = fd;
-        return r;
-}