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体验新版 GitCode,发现更多精彩内容 >>
提交
d2df70ef
编写于
3月 06, 2015
作者:
B
Ben S
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差异文件
Merge pull request #45 from byteprelude/master
making Exa.load() stat files in parallel
上级
67f60e61
9f9b8ca3
变更
1
显示空白变更内容
内联
并排
Showing
1 changed file
with
64 addition
and
17 deletion
+64
-17
src/main.rs
src/main.rs
+64
-17
未找到文件。
src/main.rs
浏览文件 @
d2df70ef
...
...
@@ -18,6 +18,9 @@ extern crate git2;
use
std
::
env
;
use
std
::
old_io
::{
fs
,
FileType
};
use
std
::
os
::
num_cpus
;
use
std
::
sync
::
mpsc
::{
channel
,
sync_channel
};
use
std
::
thread
;
use
dir
::
Dir
;
use
file
::
File
;
...
...
@@ -52,31 +55,75 @@ impl<'a> Exa<'a> {
}
}
fn
load
<
T
>
(
&
mut
self
,
iter
:
T
)
where
T
:
Iterator
<
Item
=
&
'a
String
>
{
fn
load
(
&
mut
self
,
files
:
&
[
String
])
{
// Separate the user-supplied paths into directories and files.
// Files are shown first, and then each directory is expanded
// and listed second.
for
file
in
iter
{
let
path
=
Path
::
new
(
file
);
match
fs
::
stat
(
&
path
)
{
Ok
(
stat
)
=>
{
if
stat
.kind
==
FileType
::
Directory
{
if
self
.options.dir_action
.is_tree
()
{
self
.files
.push
(
File
::
with_stat
(
stat
,
&
path
,
None
,
true
));
let
is_tree
=
self
.options.dir_action
.is_tree
();
let
total_files
=
files
.len
();
// Denotes the maxinum number of concurrent threads
let
(
thread_capacity_tx
,
thread_capacity_rs
)
=
sync_channel
(
8
*
num_cpus
());
// Communication between consumer thread and producer threads
enum
StatResult
<
'a
>
{
File
(
File
<
'a
>
),
Path
(
Path
),
Error
}
else
{
self
.dirs
.push
(
path
);
let
(
results_tx
,
results_rx
)
=
channel
();
// Spawn consumer thread
let
_
consumer
=
thread
::
scoped
(
move
||
{
for
_
in
0
..
total_files
{
// Make room for more producer threads
let
_
=
thread_capacity_rs
.recv
();
// Receive a producer's result
match
results_rx
.recv
()
{
Ok
(
result
)
=>
match
result
{
StatResult
::
File
(
file
)
=>
self
.files
.push
(
file
),
StatResult
::
Path
(
path
)
=>
self
.dirs
.push
(
path
),
StatResult
::
Error
=>
()
},
Err
(
_
)
=>
unreachable!
()
}
self
.count
+=
1
;
}
});
for
file
in
files
.iter
()
{
let
file
=
file
.clone
();
let
results_tx
=
results_tx
.clone
();
// Block until there is room for another thread
let
_
=
thread_capacity_tx
.send
(());
// Spawn producer thread
thread
::
spawn
(
move
||
{
let
path
=
Path
::
new
(
file
.clone
());
let
_
=
results_tx
.send
(
match
fs
::
stat
(
&
path
)
{
Ok
(
stat
)
=>
{
if
stat
.kind
!=
FileType
::
Directory
{
StatResult
::
File
(
File
::
with_stat
(
stat
,
&
path
,
None
,
false
))
}
else
if
is_tree
{
StatResult
::
File
(
File
::
with_stat
(
stat
,
&
path
,
None
,
true
))
}
else
{
self
.files
.push
(
File
::
with_stat
(
stat
,
&
path
,
None
,
false
));
StatResult
::
Path
(
path
)
}
}
Err
(
e
)
=>
println!
(
"{}: {}"
,
file
,
e
),
Err
(
e
)
=>
{
println!
(
"{}: {}"
,
file
,
e
);
StatResult
::
Error
}
self
.count
+=
1
;
});
})
;
}
}
fn
print_files
(
&
self
)
{
...
...
@@ -154,7 +201,7 @@ fn main() {
match
Options
::
getopts
(
args
.tail
())
{
Ok
((
options
,
paths
))
=>
{
let
mut
exa
=
Exa
::
new
(
options
);
exa
.load
(
paths
.iter
()
);
exa
.load
(
&
paths
);
exa
.print_files
();
exa
.print_dirs
();
},
...
...
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