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31869: reduce WINCH-twaddling in shingetline()

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Barton E. Schaefer 2013-10-21 08:36:52 -07:00
parent 610f376f4d
commit 21bbd96d0d
2 changed files with 8 additions and 2 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2013-10-21 Barton E. Schaefer <schaefer@zsh.org>
* 31869: Src/input.c: reduce WINCH-twaddling in shingetline()
2013-10-19 Peter Stephenson <p.w.stephenson@ntlworld.com> 2013-10-19 Peter Stephenson <p.w.stephenson@ntlworld.com>
* 31851: Src/exec.c: execstring() should display string to * 31851: Src/exec.c: execstring() should display string to

6
Src/input.c
View file

@ -142,14 +142,14 @@ shingetline(void)
char *p; char *p;
p = buf; p = buf;
winch_unblock();
for (;;) { for (;;) {
winch_unblock();
do { do {
errno = 0; errno = 0;
c = fgetc(bshin); c = fgetc(bshin);
} while (c < 0 && errno == EINTR); } while (c < 0 && errno == EINTR);
winch_block();
if (c < 0 || c == '\n') { if (c < 0 || c == '\n') {
winch_block();
if (c == '\n') if (c == '\n')
*p++ = '\n'; *p++ = '\n';
if (p > buf) { if (p > buf) {
@ -165,11 +165,13 @@ shingetline(void)
} else } else
*p++ = c; *p++ = c;
if (p >= buf + BUFSIZ - 1) { if (p >= buf + BUFSIZ - 1) {
winch_block();
line = zrealloc(line, ll + (p - buf) + 1); line = zrealloc(line, ll + (p - buf) + 1);
memcpy(line + ll, buf, p - buf); memcpy(line + ll, buf, p - buf);
ll += p - buf; ll += p - buf;
line[ll] = '\0'; line[ll] = '\0';
p = buf; p = buf;
winch_unblock();
} }
} }
} }