aboutsummaryrefslogtreecommitdiffhomepage
path: root/src/core/support/time.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/core/support/time.c')
-rw-r--r--src/core/support/time.c64
1 files changed, 24 insertions, 40 deletions
diff --git a/src/core/support/time.c b/src/core/support/time.c
index 929adac918..197fa9ad44 100644
--- a/src/core/support/time.c
+++ b/src/core/support/time.c
@@ -56,22 +56,6 @@ gpr_timespec gpr_time_max(gpr_timespec a, gpr_timespec b) {
return gpr_time_cmp(a, b) > 0 ? a : b;
}
-/* There's no standard TIME_T_MIN and TIME_T_MAX, so we construct them. The
- following assumes that signed types are two's-complement and that bytes are
- 8 bits. */
-
-/* The top bit of integral type t. */
-#define TOP_BIT_OF_TYPE(t) (((gpr_uintmax)1) << ((8 * sizeof(t)) - 1))
-
-/* Return whether integral type t is signed. */
-#define TYPE_IS_SIGNED(t) (((t)1) > (t) ~(t)0)
-
-/* The minimum and maximum value of integral type t. */
-#define TYPE_MIN(t) ((t)(TYPE_IS_SIGNED(t) ? TOP_BIT_OF_TYPE(t) : 0))
-#define TYPE_MAX(t) \
- ((t)(TYPE_IS_SIGNED(t) ? (TOP_BIT_OF_TYPE(t) - 1) \
- : ((TOP_BIT_OF_TYPE(t) - 1) << 1) + 1))
-
gpr_timespec gpr_time_0(gpr_clock_type type) {
gpr_timespec out;
out.tv_sec = 0;
@@ -82,7 +66,7 @@ gpr_timespec gpr_time_0(gpr_clock_type type) {
gpr_timespec gpr_inf_future(gpr_clock_type type) {
gpr_timespec out;
- out.tv_sec = TYPE_MAX(time_t);
+ out.tv_sec = INT64_MAX;
out.tv_nsec = 0;
out.clock_type = type;
return out;
@@ -90,7 +74,7 @@ gpr_timespec gpr_inf_future(gpr_clock_type type) {
gpr_timespec gpr_inf_past(gpr_clock_type type) {
gpr_timespec out;
- out.tv_sec = TYPE_MIN(time_t);
+ out.tv_sec = INT64_MIN;
out.tv_nsec = 0;
out.clock_type = type;
return out;
@@ -108,11 +92,11 @@ gpr_timespec gpr_time_from_nanos(long ns, gpr_clock_type type) {
result = gpr_inf_past(type);
} else if (ns >= 0) {
result.tv_sec = ns / GPR_NS_PER_SEC;
- result.tv_nsec = (int)(ns - result.tv_sec * GPR_NS_PER_SEC);
+ result.tv_nsec = (gpr_int32)(ns - result.tv_sec * GPR_NS_PER_SEC);
} else {
/* Calculation carefully formulated to avoid any possible under/overflow. */
result.tv_sec = (-(999999999 - (ns + GPR_NS_PER_SEC)) / GPR_NS_PER_SEC) - 1;
- result.tv_nsec = (int)(ns - result.tv_sec * GPR_NS_PER_SEC);
+ result.tv_nsec = (gpr_int32)(ns - result.tv_sec * GPR_NS_PER_SEC);
}
return result;
}
@@ -126,11 +110,11 @@ gpr_timespec gpr_time_from_micros(long us, gpr_clock_type type) {
result = gpr_inf_past(type);
} else if (us >= 0) {
result.tv_sec = us / 1000000;
- result.tv_nsec = (int)((us - result.tv_sec * 1000000) * 1000);
+ result.tv_nsec = (gpr_int32)((us - result.tv_sec * 1000000) * 1000);
} else {
/* Calculation carefully formulated to avoid any possible under/overflow. */
result.tv_sec = (-(999999 - (us + 1000000)) / 1000000) - 1;
- result.tv_nsec = (int)((us - result.tv_sec * 1000000) * 1000);
+ result.tv_nsec = (gpr_int32)((us - result.tv_sec * 1000000) * 1000);
}
return result;
}
@@ -144,11 +128,11 @@ gpr_timespec gpr_time_from_millis(long ms, gpr_clock_type type) {
result = gpr_inf_past(type);
} else if (ms >= 0) {
result.tv_sec = ms / 1000;
- result.tv_nsec = (int)((ms - result.tv_sec * 1000) * 1000000);
+ result.tv_nsec = (gpr_int32)((ms - result.tv_sec * 1000) * 1000000);
} else {
/* Calculation carefully formulated to avoid any possible under/overflow. */
result.tv_sec = (-(999 - (ms + 1000)) / 1000) - 1;
- result.tv_nsec = (int)((ms - result.tv_sec * 1000) * 1000000);
+ result.tv_nsec = (gpr_int32)((ms - result.tv_sec * 1000) * 1000000);
}
return result;
}
@@ -197,7 +181,7 @@ gpr_timespec gpr_time_from_hours(long h, gpr_clock_type type) {
gpr_timespec gpr_time_add(gpr_timespec a, gpr_timespec b) {
gpr_timespec sum;
- int inc = 0;
+ gpr_int64 inc = 0;
GPR_ASSERT(b.clock_type == GPR_TIMESPAN);
sum.clock_type = a.clock_type;
sum.tv_nsec = a.tv_nsec + b.tv_nsec;
@@ -205,17 +189,17 @@ gpr_timespec gpr_time_add(gpr_timespec a, gpr_timespec b) {
sum.tv_nsec -= GPR_NS_PER_SEC;
inc++;
}
- if (a.tv_sec == TYPE_MAX(time_t) || a.tv_sec == TYPE_MIN(time_t)) {
+ if (a.tv_sec == INT64_MAX || a.tv_sec == INT64_MIN) {
sum = a;
- } else if (b.tv_sec == TYPE_MAX(time_t) ||
- (b.tv_sec >= 0 && a.tv_sec >= TYPE_MAX(time_t) - b.tv_sec)) {
+ } else if (b.tv_sec == INT64_MAX ||
+ (b.tv_sec >= 0 && a.tv_sec >= INT64_MAX - b.tv_sec)) {
sum = gpr_inf_future(sum.clock_type);
- } else if (b.tv_sec == TYPE_MIN(time_t) ||
- (b.tv_sec <= 0 && a.tv_sec <= TYPE_MIN(time_t) - b.tv_sec)) {
+ } else if (b.tv_sec == INT64_MIN ||
+ (b.tv_sec <= 0 && a.tv_sec <= INT64_MIN - b.tv_sec)) {
sum = gpr_inf_past(sum.clock_type);
} else {
sum.tv_sec = a.tv_sec + b.tv_sec;
- if (inc != 0 && sum.tv_sec == TYPE_MAX(time_t) - 1) {
+ if (inc != 0 && sum.tv_sec == INT64_MAX - 1) {
sum = gpr_inf_future(sum.clock_type);
} else {
sum.tv_sec += inc;
@@ -226,7 +210,7 @@ gpr_timespec gpr_time_add(gpr_timespec a, gpr_timespec b) {
gpr_timespec gpr_time_sub(gpr_timespec a, gpr_timespec b) {
gpr_timespec diff;
- int dec = 0;
+ gpr_int64 dec = 0;
if (b.clock_type == GPR_TIMESPAN) {
diff.clock_type = a.clock_type;
} else {
@@ -238,17 +222,17 @@ gpr_timespec gpr_time_sub(gpr_timespec a, gpr_timespec b) {
diff.tv_nsec += GPR_NS_PER_SEC;
dec++;
}
- if (a.tv_sec == TYPE_MAX(time_t) || a.tv_sec == TYPE_MIN(time_t)) {
+ if (a.tv_sec == INT64_MAX || a.tv_sec == INT64_MIN) {
diff = a;
- } else if (b.tv_sec == TYPE_MIN(time_t) ||
- (b.tv_sec <= 0 && a.tv_sec >= TYPE_MAX(time_t) + b.tv_sec)) {
+ } else if (b.tv_sec == INT64_MIN ||
+ (b.tv_sec <= 0 && a.tv_sec >= INT64_MAX + b.tv_sec)) {
diff = gpr_inf_future(GPR_CLOCK_REALTIME);
- } else if (b.tv_sec == TYPE_MAX(time_t) ||
- (b.tv_sec >= 0 && a.tv_sec <= TYPE_MIN(time_t) + b.tv_sec)) {
+ } else if (b.tv_sec == INT64_MAX ||
+ (b.tv_sec >= 0 && a.tv_sec <= INT64_MIN + b.tv_sec)) {
diff = gpr_inf_past(GPR_CLOCK_REALTIME);
} else {
diff.tv_sec = a.tv_sec - b.tv_sec;
- if (dec != 0 && diff.tv_sec == TYPE_MIN(time_t) + 1) {
+ if (dec != 0 && diff.tv_sec == INT64_MIN + 1) {
diff = gpr_inf_past(GPR_CLOCK_REALTIME);
} else {
diff.tv_sec -= dec;
@@ -297,11 +281,11 @@ gpr_timespec gpr_convert_clock_type(gpr_timespec t, gpr_clock_type clock_type) {
}
if (t.tv_nsec == 0) {
- if (t.tv_sec == TYPE_MAX(time_t)) {
+ if (t.tv_sec == INT64_MAX) {
t.clock_type = clock_type;
return t;
}
- if (t.tv_sec == TYPE_MIN(time_t)) {
+ if (t.tv_sec == INT64_MIN) {
t.clock_type = clock_type;
return t;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 06:52:17 +0000