xan/zxdump
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Call isatty() way less frequently

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XANTRONIX Development 2023-09-11 13:50:24 -04:00
parent ac55efa5df
commit 1186261b3b
1 changed files with 2 additions and 1 deletions
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3
main.c
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@ -139,6 +139,7 @@ error_io:
static ssize_t dump_fd(int fd) { static ssize_t dump_fd(int fd) {
void *buf; void *buf;
ssize_t total = 0; ssize_t total = 0;
int tty = isatty(fileno(stdout));
struct stat st; struct stat st;
if (fstat(fd, &st) < 0) { if (fstat(fd, &st) < 0) {
@ -163,7 +164,7 @@ static ssize_t dump_fd(int fd) {
size_t left = len - i, size_t left = len - i,
linesz = left < ZXDUMP_STRIDE_LINE? left: ZXDUMP_STRIDE_LINE; linesz = left < ZXDUMP_STRIDE_LINE? left: ZXDUMP_STRIDE_LINE;
if (dump_line(offset, buf, linesz, isatty(fileno(stdout))) < 0) { if (dump_line(offset, buf, linesz, tty) < 0) {
goto error_dump_line; goto error_dump_line;
} }