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Automatically adjust for SSH lag

This commit is contained in:
Přemysl Eric Janouch 2020-09-14 07:11:24 +02:00
parent 5331b49ed6
commit 92d6337561
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 4 additions and 2 deletions
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termtest.c
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@ -75,10 +75,12 @@ static char *comm(const char *req, bool wait_first) {
ssize_t len = write(STDOUT_FILENO, req, strlen(req)); ssize_t len = write(STDOUT_FILENO, req, strlen(req));
if (len < strlen(req)) return NULL; if (len < strlen(req)) return NULL;
char buf[1000] = ""; size_t buf_len = 0; int n = 0;
struct pollfd pfd = { .fd = STDIN_FILENO, .events = POLLIN }; struct pollfd pfd = { .fd = STDIN_FILENO, .events = POLLIN };
if (wait_first) poll(&pfd, 1, -1); if (wait_first) poll(&pfd, 1, -1);
while ((n = poll(&pfd, 1, 50 /* unreliable, timing-dependent */))) {
int lag = getenv("SSH_CONNECTION") ? 250 : 50;
char buf[1000] = ""; size_t buf_len = 0; int n = 0;
while ((n = poll(&pfd, 1, lag /* unreliable, timing-dependent */))) {
if (n < 0) return NULL; if (n < 0) return NULL;
len = read(STDIN_FILENO, buf + buf_len, sizeof buf - buf_len - 1); len = read(STDIN_FILENO, buf + buf_len, sizeof buf - buf_len - 1);
if (len <= 0) return NULL; if (len <= 0) return NULL;