void-packages/srcpkgs/uucp/patches/no-sleep.patch

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Description: avoid sleeps
Author: Frank Heckenbach
Index: uucp-1.07/prott.c
===================================================================
--- uucp-1.07.orig/prott.c 2017-09-27 12:24:15.963165757 +0200
+++ uucp-1.07/prott.c 2017-09-27 12:24:15.959165687 +0200
@@ -88,7 +88,7 @@
zTbuf[0] = 0;
zTbuf[1] = 0;
fTfile = FALSE;
- usysdep_sleep (2);
+ // usysdep_sleep (2); -- why? protocol t is meant to be used over an error-free connection
return TRUE;
}
Index: uucp-1.07/unix/pipe.c
===================================================================
--- uucp-1.07.orig/unix/pipe.c 2017-09-27 12:24:15.963165757 +0200
+++ uucp-1.07/unix/pipe.c 2017-09-27 12:24:15.959165687 +0200
@@ -165,10 +165,43 @@
if (qsysdep->ipid >= 0)
{
if (kill (qsysdep->ipid, SIGHUP) == 0)
- usysdep_sleep (2);
+ {
+ #if defined (HAVE_USLEEP) && defined (HAVE_WAITPID)
+ /* Avoid wasting 4 seconds (including the SIGPIPE case below).
+ Quick and dirty work-around to avoid depending on SIGCHLD:
+ Just sleep up to 20 times 0.1s as long as the child exists. */
+ int i, status;
+ for (i = 20; i > 0; i--)
+ {
+ if (waitpid (qsysdep->ipid, &status, WNOHANG) == qsysdep->ipid)
+ {
+ qsysdep->ipid = -1;
+ return fret;
+ }
+ usleep (100000);
+ }
+ #else
+ usysdep_sleep (2);
+ #endif
+ }
#ifdef SIGPIPE
if (kill (qsysdep->ipid, SIGPIPE) == 0)
- usysdep_sleep (2);
+ {
+ #if HAVE_USLEEP
+ int i, status;
+ for (i = 20; i > 0; i--)
+ {
+ if (waitpid (qsysdep->ipid, &status, WNOHANG) == qsysdep->ipid)
+ {
+ qsysdep->ipid = -1;
+ return fret;
+ }
+ usleep (100000);
+ }
+ #else
+ usysdep_sleep (2);
+ #endif
+ }
#endif
if (kill (qsysdep->ipid, SIGKILL) < 0 && errno == EPERM)
{