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improved disk error handling and expanded use of error_code in error reporting

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Arvid Norberg
2009-06-10 08:30:55 +00:00
parent 3fa0f7636b
commit f0134c1b11
19 changed files with 356 additions and 261 deletions
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30
docs/manual.rst
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@@ -3014,7 +3014,7 @@ It contains the following fields::
int source;
enum bw_state { bw_idle, bw_torrent, bw_global, bw_network };
enum bw_state { bw_idle, bw_limit, bw_network, bw_disk };
char read_state;
char write_state;
@@ -3172,13 +3172,7 @@ defines as follows:
| | send or receive data. |
| | |
+------------------------+--------------------------------------------------------+
| ``bw_torrent`` | The peer is waiting for the torrent to receive |
| | bandwidth quota in order to forward the bandwidth |
| | request to the global manager. |
| | |
+------------------------+--------------------------------------------------------+
| ``bw_global`` | The peer is waiting for the global bandwidth manager |
| | to receive more quota in order to handle the request. |
| ``bw_limit`` | The peer is waiting for the rate limiter. |
| | |
+------------------------+--------------------------------------------------------+
| ``bw_network`` | The peer has quota and is currently waiting for a |
@@ -3187,6 +3181,10 @@ defines as follows:
| | limits. |
| | |
+------------------------+--------------------------------------------------------+
| ``bw_disk`` | The peer is waiting for the disk I/O thread to catch |
| | up writing buffers to disk before downloading more. |
| | |
+------------------------+--------------------------------------------------------+
The ``ip`` field is the IP-address to this peer. The type is an asio endpoint. For
more info, see the asio_ documentation.
@@ -3386,7 +3384,7 @@ session_settings
int num_want;
int initial_picker_threshold;
int allowed_fast_set_size;
int max_outstanding_disk_bytes_per_connection;
int max_queued_disk_bytes;
int handshake_timeout;
bool use_dht_as_fallback;
bool free_torrent_hashes;
@@ -3595,10 +3593,12 @@ in rarest first order.
``allowed_fast_set_size`` is the number of pieces we allow peers to download
from us without being unchoked.
``max_outstanding_disk_bytes_per_connection`` is the number of bytes each
connection is allowed to have waiting in the disk I/O queue before it is
throttled back. This limit is meant to stop fast internet connections to
queue up bufferes indefinitely on slow hard-drives or storage.
``max_queued_disk_bytes`` is the number maximum number of bytes, to be
written to disk, that can wait in the disk I/O thread queue. This queue
is only for waiting for the disk I/O thread to receive the job and either
write it to disk or insert it in the write cache. When this limit is reached,
the peer connections will stop reading data from their sockets, until the disk
thread catches up. Setting this too low will severly limit your download rate.
``handshake_timeout`` specifies the number of seconds we allow a peer to
delay responding to a protocol handshake. If no response is received within
@@ -4687,7 +4687,7 @@ generated and the torrent is paused.
``file`` is the path to the file that was accessed when the error occurred.
``msg`` is the error message received from the OS.
``error`` is the error code describing the error.
::
@@ -4695,7 +4695,7 @@ generated and the torrent is paused.
{
// ...
std::string file;
std::string msg;
error_code error;
};
file_renamed_alert