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patch 7.4.1669

Problem:    When writing buffer lines to a pipe Vim may block.
Solution:   Avoid blocking, write more lines later.
This commit is contained in:
Bram Moolenaar
2016-03-28 19:16:20 +02:00
parent ee1f7b3cb7
commit 8b877ac38e
8 changed files with 288 additions and 45 deletions

View File

@@ -5539,7 +5539,8 @@ RealWaitForChar(int fd, long msec, int *check_for_gpm UNUSED, int *break_loop)
# endif
#endif
#ifndef HAVE_SELECT
struct pollfd fds[6 + MAX_OPEN_CHANNELS];
/* each channel may use in, out and err */
struct pollfd fds[6 + 3 * MAX_OPEN_CHANNELS];
int nfd;
# ifdef FEAT_XCLIPBOARD
int xterm_idx = -1;
@@ -5652,7 +5653,7 @@ RealWaitForChar(int fd, long msec, int *check_for_gpm UNUSED, int *break_loop)
struct timeval tv;
struct timeval *tvp;
fd_set rfds, efds;
fd_set rfds, wfds, efds;
int maxfd;
long towait = msec;
@@ -5685,6 +5686,7 @@ RealWaitForChar(int fd, long msec, int *check_for_gpm UNUSED, int *break_loop)
*/
select_eintr:
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&efds);
FD_SET(fd, &rfds);
# if !defined(__QNX__) && !defined(__CYGWIN32__)
@@ -5725,10 +5727,10 @@ select_eintr:
}
# endif
# ifdef FEAT_JOB_CHANNEL
maxfd = channel_select_setup(maxfd, &rfds);
maxfd = channel_select_setup(maxfd, &rfds, &wfds);
# endif
ret = select(maxfd + 1, &rfds, NULL, &efds, tvp);
ret = select(maxfd + 1, &rfds, &wfds, &efds, tvp);
result = ret > 0 && FD_ISSET(fd, &rfds);
if (result)
--ret;
@@ -5810,7 +5812,7 @@ select_eintr:
# endif
#ifdef FEAT_JOB_CHANNEL
if (ret > 0)
ret = channel_select_check(ret, &rfds);
ret = channel_select_check(ret, &rfds, &wfds);
#endif
#endif /* HAVE_SELECT */