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authorSuren A. Chilingaryan <csa@dside.dyndns.org>2011-12-09 07:12:44 +0100
committerSuren A. Chilingaryan <csa@dside.dyndns.org>2011-12-09 07:12:44 +0100
commit1ac7751e5b9df5f09500aca9e5b34bb9cfa912b4 (patch)
tree42e3705aa8b20fc7f03025cb83ae2f928350174d /tools.c
parentc3812d3569aa98e23953eea323d980912580e659 (diff)
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Initial support of event streaming in cli
Diffstat (limited to 'tools.c')
-rw-r--r--tools.c46
1 files changed, 38 insertions, 8 deletions
diff --git a/tools.c b/tools.c
index c2d8bd7..4874f7f 100644
--- a/tools.c
+++ b/tools.c
@@ -1,9 +1,12 @@
+#define _POSIX_C_SOURCE 200112L
+
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdint.h>
#include <assert.h>
#include <ctype.h>
+#include <time.h>
#include <arpa/inet.h>
#include <sys/time.h>
@@ -251,20 +254,24 @@ int pcilib_get_page_mask() {
return pagemask;
}
-int calc_deadline(struct timeval *tv, pcilib_timeout_t timeout) {
- gettimeofday(tv, NULL);
+int pcilib_add_timeout(struct timeval *tv, pcilib_timeout_t timeout) {
tv->tv_usec += timeout%1000000;
if (tv->tv_usec > 999999) {
tv->tv_usec -= 1000000;
- tv->tv_sec = 1 + timeout/1000000;
+ tv->tv_sec += 1 + timeout/1000000;
} else {
- tv->tv_sec = timeout/1000000;
+ tv->tv_sec += timeout/1000000;
}
-
+}
+
+int pcilib_calc_deadline(struct timeval *tv, pcilib_timeout_t timeout) {
+ gettimeofday(tv, NULL);
+ pcilib_add_timeout(tv, timeout);
+
return 0;
}
-int check_deadline(struct timeval *tve, pcilib_timeout_t timeout) {
+int pcilib_check_deadline(struct timeval *tve, pcilib_timeout_t timeout) {
int64_t res;
struct timeval tvs;
@@ -272,12 +279,15 @@ int check_deadline(struct timeval *tve, pcilib_timeout_t timeout) {
gettimeofday(&tvs, NULL);
res = ((tve->tv_sec - tvs.tv_sec)*1000000 + (tve->tv_usec - tvs.tv_usec));
- if (res < timeout) return 1;
+ // Hm... Some problems comparing signed and unsigned. So, sign check first
+ if ((res < 0)||(res < timeout)) {
+ return 1;
+ }
return 0;
}
-pcilib_timeout_t calc_time_to_deadline(struct timeval *tve) {
+pcilib_timeout_t pcilib_calc_time_to_deadline(struct timeval *tve) {
int64_t res;
struct timeval tvs;
@@ -287,3 +297,23 @@ pcilib_timeout_t calc_time_to_deadline(struct timeval *tve) {
if (res < 0) return 0;
return res;
}
+
+int pcilib_sleep_until_deadline(struct timeval *tv) {
+ struct timespec wait;
+ pcilib_timeout_t duration;
+
+ duration = pcilib_calc_time_to_deadline(tv);
+ wait.tv_sec = duration / 1000000;
+ wait.tv_nsec = 1000 * (duration % 1000000);
+ nanosleep(&wait, NULL);
+
+ return 0;
+}
+
+int pcilib_timecmp(struct timeval *tv1, struct timeval *tv2) {
+ if (tv1->tv_sec > tv2->tv_sec) return 1;
+ else if (tv1->tv_sec > tv2->tv_sec) return -1;
+ else if (tv1->tv_usec > tv2->tv_usec) return 1;
+ else if (tv1->tv_usec < tv2->tv_usec) return -1;
+ return 0;
+}