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authorLennart Poettering <lennart@poettering.net>2009-11-18 00:42:52 +0100
committerLennart Poettering <lennart@poettering.net>2009-11-18 00:42:52 +0100
commit6091827530d6dd43479d6709fb6e9f745c11e900 (patch)
tree3edf7ccdeeb60b634d63e1abcaa8132a6259a331 /util.c
initial commit
Diffstat (limited to 'util.c')
-rw-r--r--util.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/util.c b/util.c
new file mode 100644
index 0000000000..3ef190fa2a
--- /dev/null
+++ b/util.c
@@ -0,0 +1,95 @@
+/*-*- Mode: C; c-basic-offset: 8 -*-*/
+
+#include <assert.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "macro.h"
+#include "util.h"
+
+usec_t now(clockid_t clock) {
+ struct timespec ts;
+
+ assert_se(clock_gettime(clock, &ts) == 0);
+
+ return timespec_load(&ts);
+}
+
+usec_t timespec_load(const struct timespec *ts) {
+ assert(ts);
+
+ return
+ (usec_t) ts->tv_sec * USEC_PER_SEC +
+ (usec_t) ts->tv_nsec / NSEC_PER_USEC;
+}
+
+struct timespec *timespec_store(struct timespec *ts, usec_t u) {
+ assert(ts);
+
+ ts->tv_sec = (time_t) (u / USEC_PER_SEC);
+ ts->tv_nsec = (long int) ((u % USEC_PER_SEC) * NSEC_PER_USEC);
+
+ return ts;
+}
+
+usec_t timeval_load(const struct timeval *tv) {
+ assert(tv);
+
+ return
+ (usec_t) tv->tv_sec * USEC_PER_SEC +
+ (usec_t) tv->tv_usec;
+}
+
+struct timeval *timeval_store(struct timeval *tv, usec_t u) {
+ assert(tv);
+
+ tv->tv_sec = (time_t) (u / USEC_PER_SEC);
+ tv->tv_usec = (suseconds_t) (u % USEC_PER_SEC);
+
+ return tv;
+}
+
+bool endswith(const char *s, const char *postfix) {
+ size_t sl, pl;
+
+ assert(s);
+ assert(postfix);
+
+ sl = strlen(s);
+ pl = strlen(postfix);
+
+ if (sl < pl)
+ return false;
+
+ return memcmp(s + sl - pl, postfix, pl) == 0;
+}
+
+bool startswith(const char *s, const char *prefix) {
+ size_t sl, pl;
+
+ assert(s);
+ assert(prefix);
+
+ sl = strlen(s);
+ pl = strlen(prefix);
+
+ if (sl < pl)
+ return false;
+
+ return memcmp(s, prefix, pl) == 0;
+}
+
+int nointr_close(int fd) {
+ assert(fd >= 0);
+
+ for (;;) {
+ int r;
+
+ if ((r = close(fd)) >= 0)
+ return r;
+
+ if (errno != EINTR)
+ return r;
+ }
+}