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+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ 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 <lzma.h>
+#include <zlib.h>
+#include <bzlib.h>
+#include <gcrypt.h>
+
+#include "macro.h"
+#include "curl-util.h"
+
+typedef struct PullJob PullJob;
+
+typedef void (*PullJobFinished)(PullJob *job);
+typedef int (*PullJobOpenDisk)(PullJob *job);
+typedef int (*PullJobHeader)(PullJob *job, const char *header, size_t sz);
+typedef void (*PullJobProgress)(PullJob *job);
+
+typedef enum PullJobState {
+ PULL_JOB_INIT,
+ PULL_JOB_ANALYZING, /* Still reading into ->payload, to figure out what we have */
+ PULL_JOB_RUNNING, /* Writing to destination */
+ PULL_JOB_DONE,
+ PULL_JOB_FAILED,
+ _PULL_JOB_STATE_MAX,
+ _PULL_JOB_STATE_INVALID = -1,
+} PullJobState;
+
+#define PULL_JOB_STATE_IS_COMPLETE(j) (IN_SET((j)->state, PULL_JOB_DONE, PULL_JOB_FAILED))
+
+typedef enum PullJobCompression {
+ PULL_JOB_UNCOMPRESSED,
+ PULL_JOB_XZ,
+ PULL_JOB_GZIP,
+ PULL_JOB_BZIP2,
+ _PULL_JOB_COMPRESSION_MAX,
+ _PULL_JOB_COMPRESSION_INVALID = -1,
+} PullJobCompression;
+
+struct PullJob {
+ PullJobState state;
+ int error;
+
+ char *url;
+
+ void *userdata;
+ PullJobFinished on_finished;
+ PullJobOpenDisk on_open_disk;
+ PullJobHeader on_header;
+ PullJobProgress on_progress;
+
+ CurlGlue *glue;
+ CURL *curl;
+ struct curl_slist *request_header;
+
+ char *etag;
+ char **old_etags;
+ bool etag_exists;
+
+ uint64_t content_length;
+ uint64_t written_compressed;
+ uint64_t written_uncompressed;
+
+ uint64_t uncompressed_max;
+ uint64_t compressed_max;
+
+ uint8_t *payload;
+ size_t payload_size;
+ size_t payload_allocated;
+
+ int disk_fd;
+
+ usec_t mtime;
+
+ PullJobCompression compressed;
+ lzma_stream xz;
+ z_stream gzip;
+ bz_stream bzip2;
+
+ unsigned progress_percent;
+ usec_t start_usec;
+ usec_t last_status_usec;
+
+ bool allow_sparse;
+
+ bool calc_checksum;
+ gcry_md_hd_t checksum_context;
+
+ char *checksum;
+
+ bool grow_machine_directory;
+ uint64_t written_since_last_grow;
+};
+
+int pull_job_new(PullJob **job, const char *url, CurlGlue *glue, void *userdata);
+PullJob* pull_job_unref(PullJob *job);
+
+int pull_job_begin(PullJob *j);
+
+void pull_job_curl_on_finished(CurlGlue *g, CURL *curl, CURLcode result);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(PullJob*, pull_job_unref);