Changeset 0a0dff8 in mainline

Timestamp:

2018-06-25T18:56:05Z (6 years ago)

Author:

Jiří Zárevúcky <jiri.zarevucky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d73d992

Parents:

826a0a97

Message:

Add const to time functions.

Location:

uspace/lib/c

Files:

• generic/time.c (modified) (6 diffs)
• include/sys/time.h (modified) (2 diffs)

uspace/lib/c/generic/time.c

@@ -51 +51 @@
 #include <loc.h>
 #include <device/clock_dev.h>
-#include <thread.h>
 
 #define ASCTIME_BUF_LEN  26
@@ -487 +486 @@
  * @param tv2 Second timeval.
  */
-void tv_add(struct timeval *tv1, struct timeval *tv2)
+void tv_add(struct timeval *tv1, const struct timeval *tv2)
 {
         tv1->tv_sec += tv2->tv_sec;
@@ -503 +502 @@
  *
  */
-suseconds_t tv_sub_diff(struct timeval *tv1, struct timeval *tv2)
+suseconds_t tv_sub_diff(const struct timeval *tv1, const struct timeval *tv2)
 {
         return (tv1->tv_usec - tv2->tv_usec) +
@@ -515 +514 @@
  *
  */
-void tv_sub(struct timeval *tv1, struct timeval *tv2)
+void tv_sub(struct timeval *tv1, const struct timeval *tv2)
 {
         tv1->tv_sec -= tv2->tv_sec;
@@ -531 +530 @@
  *
  */
-int tv_gt(struct timeval *tv1, struct timeval *tv2)
+int tv_gt(const struct timeval *tv1, const struct timeval *tv2)
 {
         if (tv1->tv_sec > tv2->tv_sec)
@@ -551 +550 @@
  *
  */
-int tv_gteq(struct timeval *tv1, struct timeval *tv2)
+int tv_gteq(const struct timeval *tv1, const struct timeval *tv2)
 {
         if (tv1->tv_sec > tv2->tv_sec)

uspace/lib/c/include/sys/time.h

@@ -69 +69 @@
 };
 
+#define TIMEVAL_MAX ((struct timeval) { .tv_sec = LONG_MAX, .tv_usec = 999999 })
+
 struct timezone {
         int tz_minuteswest;  /* minutes W of Greenwich */
@@ -75 +77 @@
 
 extern void tv_add_diff(struct timeval *, suseconds_t);
-extern void tv_add(struct timeval *, struct timeval *);
-extern suseconds_t tv_sub_diff(struct timeval *, struct timeval *);
-extern void tv_sub(struct timeval *, struct timeval *);
-extern int tv_gt(struct timeval *, struct timeval *);
-extern int tv_gteq(struct timeval *, struct timeval *);
+extern void tv_add(struct timeval *, const struct timeval *);
+extern suseconds_t tv_sub_diff(const struct timeval *, const struct timeval *);
+extern void tv_sub(struct timeval *, const struct timeval *);
+extern int tv_gt(const struct timeval *, const struct timeval *);
+extern int tv_gteq(const struct timeval *, const struct timeval *);
 extern void gettimeofday(struct timeval *, struct timezone *);
 extern void getuptime(struct timeval *);