diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-03-24 05:34:05 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-03-24 05:34:05 +0000 |
commit | cb2f56aaf48b24740fca6d24f0915d6b3cbb6db8 (patch) | |
tree | 28fc98f94ff7a1e3af411d57a5c1d658d70e69c5 /win32 | |
parent | 152934a300d8becb43d7d260b8491d162cbd83ba (diff) | |
download | ruby-cb2f56aaf48b24740fca6d24f0915d6b3cbb6db8.tar.gz |
* win32/win32.c (rb_w32_read): limit read size to 16KB if the file
seems to be console. [ruby-core:28902]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27029 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'win32')
-rw-r--r-- | win32/win32.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/win32/win32.c b/win32/win32.c index 8216ac9918..58c24d4deb 100644 --- a/win32/win32.c +++ b/win32/win32.c @@ -4835,6 +4835,8 @@ rb_w32_read(int fd, void *buf, size_t size) DWORD read; DWORD wait; DWORD err; + size_t len; + size_t ret; OVERLAPPED ol, *pol = NULL; if (is_socket(sock)) @@ -4856,6 +4858,12 @@ rb_w32_read(int fd, void *buf, size_t size) return 0; } + ret = 0; + retry: + /* get rid of console writing bug */ + len = (_osfile(fd) & FDEV) ? min(16 * 1024, size) : size; + size -= len; + /* if have cancel_io, use Overlapped I/O */ if (cancel_io) { memset(&ol, 0, sizeof(ol)); @@ -4884,7 +4892,7 @@ rb_w32_read(int fd, void *buf, size_t size) pol = &ol; } - if (!ReadFile((HANDLE)_osfhnd(fd), buf, size, &read, pol)) { + if (!ReadFile((HANDLE)_osfhnd(fd), buf, len, &read, pol)) { err = GetLastError(); if (err != ERROR_IO_PENDING) { if (err == ERROR_ACCESS_DENIED) @@ -4940,9 +4948,16 @@ rb_w32_read(int fd, void *buf, size_t size) } } + ret += read; + if (read == len) { + buf = (char *)buf + len; + if (size > 0) + goto retry; + } + MTHREAD_ONLY(LeaveCriticalSection(&_pioinfo(fd)->lock)); - return read; + return ret; } #undef write |