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From cabd9055d0d745f7de9625dec6c623d363dd3aa6 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
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Date: Wed, 29 May 2019 10:17:43 +0200
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Subject: [PATCH] shared/cpu-set-util: only force range printing one time
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The idea is to have at least one range to make the new format clearly
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distinguishable from the old. But it is enough to just do it once.
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In particular, in case the affinity would be specified like 0, 2, 4, 6…,
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this gives much shorter output.
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(cherry picked from commit 1f57a176af5152d05719bf43740e87a47e37af50)
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Related: #1734787
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---
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src/basic/cpu-set-util.c | 10 ++++++++--
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src/test/test-cpu-set-util.c | 7 ++++---
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2 files changed, 12 insertions(+), 5 deletions(-)
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diff --git a/src/basic/cpu-set-util.c b/src/basic/cpu-set-util.c
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index bff39ec143..5024290557 100644
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--- a/src/basic/cpu-set-util.c
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+++ b/src/basic/cpu-set-util.c
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@@ -58,7 +58,10 @@ char *cpu_set_to_range_string(const CPUSet *set) {
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if (!GREEDY_REALLOC(str, allocated, len + 2 + 2 * DECIMAL_STR_MAX(unsigned)))
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return NULL;
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- r = sprintf(str + len, len > 0 ? " %d-%d" : "%d-%d", range_start, range_end);
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+ if (range_end > range_start || len == 0)
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+ r = sprintf(str + len, len > 0 ? " %d-%d" : "%d-%d", range_start, range_end);
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+ else
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+ r = sprintf(str + len, len > 0 ? " %d" : "%d", range_start);
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assert_se(r > 0);
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len += r;
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}
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@@ -67,7 +70,10 @@ char *cpu_set_to_range_string(const CPUSet *set) {
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if (!GREEDY_REALLOC(str, allocated, len + 2 + 2 * DECIMAL_STR_MAX(int)))
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return NULL;
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- r = sprintf(str + len, len > 0 ? " %d-%d" : "%d-%d", range_start, range_end);
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+ if (range_end > range_start || len == 0)
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+ r = sprintf(str + len, len > 0 ? " %d-%d" : "%d-%d", range_start, range_end);
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+ else
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+ r = sprintf(str + len, len > 0 ? " %d" : "%d", range_start);
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assert_se(r > 0);
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}
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diff --git a/src/test/test-cpu-set-util.c b/src/test/test-cpu-set-util.c
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index 0d2741cd43..995b981d25 100644
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--- a/src/test/test-cpu-set-util.c
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+++ b/src/test/test-cpu-set-util.c
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@@ -31,19 +31,20 @@ static void test_parse_cpu_set(void) {
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cpu_set_reset(&c);
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/* Simple range (from CPUAffinity example) */
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- assert_se(parse_cpu_set_full("1 2", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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+ assert_se(parse_cpu_set_full("1 2 4", &c, true, NULL, "fake", 1, "CPUAffinity") >= 0);
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assert_se(c.set);
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assert_se(c.allocated >= sizeof(__cpu_mask) / 8);
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assert_se(CPU_ISSET_S(1, c.allocated, c.set));
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assert_se(CPU_ISSET_S(2, c.allocated, c.set));
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- assert_se(CPU_COUNT_S(c.allocated, c.set) == 2);
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+ assert_se(CPU_ISSET_S(4, c.allocated, c.set));
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+ assert_se(CPU_COUNT_S(c.allocated, c.set) == 3);
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assert_se(str = cpu_set_to_string(&c);;
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log_info("cpu_set_to_string: %s", str);
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str = mfree(str);
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assert_se(str = cpu_set_to_range_string(&c);;
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log_info("cpu_set_to_range_string: %s", str);
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- assert_se(streq(str, "1-2"));
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+ assert_se(streq(str, "1-2 4"));
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str = mfree(str);
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cpu_set_reset(&c);
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