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71 lines
2.2 KiB
71 lines
2.2 KiB
9 months ago
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commit 35e3fbc4512c880fccb35b8e3abd132d4be18480
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Mon Nov 19 15:35:03 2018 +0100
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support: Print timestamps in timeout handler
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This is sometimes useful to determine if a test truly got stuck, or if
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it was making progress (logging information to standard output) and
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was merely slow to finish.
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diff --git a/support/support_test_main.c b/support/support_test_main.c
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index 23429779aca85613..fa3c2e06dee5ae0f 100644
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--- a/support/support_test_main.c
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+++ b/support/support_test_main.c
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@@ -30,6 +30,7 @@
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#include <string.h>
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#include <sys/param.h>
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#include <sys/resource.h>
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+#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <time.h>
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@@ -86,6 +87,19 @@ static pid_t test_pid;
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/* The cleanup handler passed to test_main. */
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static void (*cleanup_function) (void);
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+static void
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+print_timestamp (const char *what, struct timeval tv)
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+{
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+ struct tm tm;
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+ if (gmtime_r (&tv.tv_sec, &tm) == NULL)
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+ printf ("%s: %lld.%06d\n",
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+ what, (long long int) tv.tv_sec, (int) tv.tv_usec);
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+ else
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+ printf ("%s: %04d-%02d-%02dT%02d:%02d:%02d.%06d\n",
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+ what, 1900 + tm.tm_year, tm.tm_mon + 1, tm.tm_mday,
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+ tm.tm_hour, tm.tm_min, tm.tm_sec, (int) tv.tv_usec);
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+}
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+
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/* Timeout handler. We kill the child and exit with an error. */
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static void
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__attribute__ ((noreturn))
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@@ -94,6 +108,13 @@ signal_handler (int sig)
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int killed;
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int status;
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+ /* Do this first to avoid further interference from the
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+ subprocess. */
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+ struct timeval now;
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+ bool now_available = gettimeofday (&now, NULL) == 0;
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+ struct stat64 st;
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+ bool st_available = fstat64 (STDOUT_FILENO, &st) == 0 && st.st_mtime != 0;
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+
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assert (test_pid > 1);
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/* Kill the whole process group. */
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kill (-test_pid, SIGKILL);
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@@ -144,6 +165,13 @@ signal_handler (int sig)
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printf ("Timed out: killed the child process but it exited %d\n",
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WEXITSTATUS (status));
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+ if (now_available)
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+ print_timestamp ("Termination time", now);
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+ if (st_available)
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+ print_timestamp ("Last write to standard output",
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+ (struct timeval) { st.st_mtim.tv_sec,
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+ st.st_mtim.tv_nsec / 1000 });
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+
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/* Exit with an error. */
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exit (1);
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}
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