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.. _types:
Basic types
===========
Basic types and utilities.
Data types
----------
.. c:type:: raft_id
Hold the value of a Raft server ID. Guaranteed to be at least 64-bit long.
.. c:type:: raft_term
Hold the value of a Raft term. Guaranteed to be at least 64-bit long.
.. c:type:: raft_index
Hold the value of a raft entry index. Guaranteed to be at least 64-bit long.
.. c:type:: raft_time
Hold a time value expressed in milliseconds since the epoch.
.. c:struct:: raft_buffer
A data buffer.
.. code-block:: C
struct raft_buffer
{
void *base; /* Pointer to the buffer data */
size_t len; /* Length of the buffer */
};
.. c:enum:: raft_entry_type
Log entry type codes.
.. code-block:: C
enum raft_entry_type {
RAFT_COMMAND = 1, /* Command for the application FSM. */
RAFT_BARRIER, /* Wait for all previous commands to be applied. */
RAFT_CHANGE /* Raft configuration change. */
};
.. c:struct:: raft_entry
A single entry in the raft log.
.. code-block:: C
struct raft_entry
{
raft_term term; /* Term in which the entry was created */
unsigned short type; /* Type (FSM command, barrier, config change) */
struct raft_buffer buf; /* Entry data */
void *batch; /* Batch that buf's memory points to, if any */
};
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