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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:54:28 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:54:28 +0000
commite6918187568dbd01842d8d1d2c808ce16a894239 (patch)
tree64f88b554b444a49f656b6c656111a145cbbaa28 /src/test/common/ObjectContents.h
parentInitial commit. (diff)
downloadceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz
ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/common/ObjectContents.h')
-rw-r--r--src/test/common/ObjectContents.h122
1 files changed, 122 insertions, 0 deletions
diff --git a/src/test/common/ObjectContents.h b/src/test/common/ObjectContents.h
new file mode 100644
index 000000000..7834bfedf
--- /dev/null
+++ b/src/test/common/ObjectContents.h
@@ -0,0 +1,122 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+#include "include/interval_set.h"
+#include "include/buffer_fwd.h"
+#include <map>
+
+#ifndef COMMON_OBJECT_H
+#define COMMON_OBJECT_H
+
+enum {
+ RANDOMWRITEFULL,
+ DELETED,
+ CLONERANGE
+};
+
+bool test_object_contents();
+
+class ObjectContents {
+ uint64_t _size;
+ std::map<uint64_t, unsigned int> seeds;
+ interval_set<uint64_t> written;
+ bool _exists;
+public:
+ class Iterator {
+ ObjectContents *parent;
+ std::map<uint64_t, unsigned int>::iterator iter;
+ unsigned int current_state;
+ int current_val;
+ uint64_t pos;
+ private:
+ unsigned int get_state(uint64_t pos);
+ public:
+ explicit Iterator(ObjectContents *parent) :
+ parent(parent), iter(parent->seeds.end()),
+ current_state(0), current_val(0), pos(-1) {
+ seek_to_first();
+ }
+ char operator*() {
+ return parent->written.contains(pos) ?
+ static_cast<char>(current_val % 256) : '\0';
+ }
+ uint64_t get_pos() {
+ return pos;
+ }
+ void seek_to(uint64_t _pos) {
+ if (pos > _pos ||
+ (iter != parent->seeds.end() && _pos >= iter->first)) {
+ iter = parent->seeds.upper_bound(_pos);
+ --iter;
+ current_state = iter->second;
+ current_val = rand_r(&current_state);
+ pos = iter->first;
+ ++iter;
+ }
+ while (pos < _pos) ++(*this);
+ }
+
+ void seek_to_first() {
+ seek_to(0);
+ }
+ Iterator &operator++() {
+ ++pos;
+ if (iter != parent->seeds.end() && pos >= iter->first) {
+ ceph_assert(pos == iter->first);
+ current_state = iter->second;
+ ++iter;
+ }
+ current_val = rand_r(&current_state);
+ return *this;
+ }
+ bool valid() {
+ return pos < parent->size();
+ }
+ friend class ObjectContents;
+ };
+
+ ObjectContents() : _size(0), _exists(false) {
+ seeds[0] = 0;
+ }
+
+ explicit ObjectContents(bufferlist::const_iterator &bp) {
+ decode(_size, bp);
+ decode(seeds, bp);
+ decode(written, bp);
+ decode(_exists, bp);
+ }
+
+ void clone_range(ObjectContents &other,
+ interval_set<uint64_t> &intervals);
+ void write(unsigned int seed,
+ uint64_t from,
+ uint64_t len);
+ Iterator get_iterator() {
+ return Iterator(this);
+ }
+
+ uint64_t size() const { return _size; }
+
+ bool exists() { return _exists; }
+
+ void debug(std::ostream &out) {
+ out << "_size is " << _size << std::endl;
+ out << "seeds is: (";
+ for (std::map<uint64_t, unsigned int>::iterator i = seeds.begin();
+ i != seeds.end();
+ ++i) {
+ out << "[" << i->first << "," << i->second << "], ";
+ }
+ out << ")" << std::endl;
+ out << "written is " << written << std::endl;
+ out << "_exists is " << _exists << std::endl;
+ }
+
+ void encode(bufferlist &bl) const {
+ using ceph::encode;
+ encode(_size, bl);
+ encode(seeds, bl);
+ encode(written, bl);
+ encode(_exists, bl);
+ }
+};
+
+#endif