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Add Local Version field to files, send index in segments.

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This commit is contained in:
Jakob Borg
2014-07-15 13:04:37 +02:00
parent fccdd85cc1
commit 8b349945de
16 changed files with 291 additions and 288 deletions
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25
protocol/PROTOCOL.md
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@@ -182,7 +182,7 @@ Cluster Config messages MUST NOT be sent after the initial exchange.
| Flags |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ Max Version (64 bits) +
+ Max Local Version (64 bits) +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
@@ -255,13 +255,13 @@ The Node Flags field contains the following single bit flags:
Exactly one of the T, R or S bits MUST be set.
The Node Max Version field contains the highest file version number of
the files already known to be in the index sent by this node. If nothing
is known about the index of a given node, this field MUST be set to
zero. When receiving a Cluster Config message with a non-zero Max
The Node Max Local Version field contains the highest local file version
number of the files already known to be in the index sent by this node.
If nothing is known about the index of a given node, this field MUST be
set to zero. When receiving a Cluster Config message with a non-zero Max
Version for the local node ID, a node MAY elect to send an Index Update
message containing only files with higher version numbers in place of
the initial Index message.
message containing only files with higher local version numbers in place
of the initial Index message.
The Options field contain option values to be used in an implementation
specific manner. The options list is conceptually a map of Key => Value
@@ -292,7 +292,7 @@ peers acting in a specific manner as a result of sent options.
struct Node {
string ID<>;
unsigned int Flags;
unsigned hyper MaxVersion;
unsigned hyper MaxLocalVersion;
}
struct Option {
@@ -359,6 +359,10 @@ Index message MUST be sent. There is no response to the Index message.
+ Version (64 bits) +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ Local Version (64 bits) +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Number of Blocks |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ /
@@ -400,6 +404,10 @@ detected and received change. The combination of Repository, Name and
Version uniquely identifies the contents of a file at a given point in
time.
The Local Version field is the value of a node local monotonic clock at
the time of last local database update to a file. The clock ticks on
every local database update.
The Flags field is made up of the following single bit flags:
0 1 2 3
@@ -458,6 +466,7 @@ block which may represent a smaller amount of data.
unsigned int Flags;
hyper Modified;
unsigned hyper Version;
unsigned hyper LocalVer;
BlockInfo Blocks<>;
}