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win32: IMHO slightly better select implementation

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This commit is contained in:
Witold Filipczyk 2006-05-21 12:59:00 +02:00 committed by Witold Filipczyk
parent af0997c637
commit 5558284c08
2 changed files with 12 additions and 20 deletions
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5
src/main/select.c
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@ -335,10 +335,5 @@ can_read(int fd)
int
can_write(int fd)
{
#ifdef CONFIG_OS_WIN32
/* temporary hack. ELinks didn't start properly under Wine */
return 1;
#else
return can_read_or_write(fd, 1);
#endif
}

27
src/osdep/win32/overrides.c
View File

@ -566,7 +566,7 @@ select_one_loop(int num_fds, struct fd_set *rd, struct fd_set *wr,
} else if (fd < SOCK_SHIFT) {
rc += select_read(fd, rd);
if (FD_ISSET(fd,wr))
if (wr && FD_ISSET(fd,wr))
rc++; /* assume always writable */
} else {
@ -614,7 +614,7 @@ select_one_loop(int num_fds, struct fd_set *rd, struct fd_set *wr,
int win32_select (int num_fds, struct fd_set *rd, struct fd_set *wr,
struct fd_set *ex, struct timeval *tv)
{
struct fd_set tmp_rd, tmp_wr, tmp_ex;
struct fd_set tmp_rd, tmp_ex;
struct timeval expiry, start_time;
int fd, rc;
BOOL expired = FALSE;
@ -627,7 +627,6 @@ int win32_select (int num_fds, struct fd_set *rd, struct fd_set *wr,
select_dump(num_fds, rd, wr, ex);
FD_ZERO(&tmp_rd);
FD_ZERO(&tmp_wr);
FD_ZERO(&tmp_ex);
if (tv) {
@ -646,7 +645,7 @@ int win32_select (int num_fds, struct fd_set *rd, struct fd_set *wr,
errno = 0;
for (rc = 0; !expired; ) {
rc += select_one_loop (num_fds, &tmp_rd, &tmp_wr, &tmp_ex);
rc += select_one_loop (num_fds, &tmp_rd, wr, &tmp_ex);
if (tv) {
struct timeval now;
@ -661,18 +660,16 @@ int win32_select (int num_fds, struct fd_set *rd, struct fd_set *wr,
if (rc) break;
}
/* Copy fd_sets to output */
if (rd) FD_ZERO(rd);
if (wr) FD_ZERO(wr);
if (ex) FD_ZERO(ex);
rc = 0;
for (fd = 0; fd < num_fds; fd++) {
if (rd && FD_ISSET(fd,&tmp_rd))
FD_SET (fd, rd);
if (wr && FD_ISSET(fd,&tmp_wr))
FD_SET (fd, wr);
if (ex && FD_ISSET(fd,&tmp_ex))
FD_SET (fd, ex);
if (rd && FD_ISSET(fd, rd) && !FD_ISSET(fd, &tmp_rd))
FD_CLR(fd, rd);
else rc++;
if (wr && FD_ISSET(fd, wr)) rc++;
/* wr always set */
if (ex && FD_ISSET(fd, ex) && !FD_ISSET(fd, &tmp_ex))
FD_CLR(fd, ex);
else rc++;
}
TRACE("-> rc %d, err %d", rc, rc < 0 ? errno : 0);