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5917d97991
Also general cleanups: (1) Don't assume that strings are folded by the compiler. (2) Implement likely_stats_reset(). (3) Return non-const string from likely_stats(), as caller must free it. (4) Don't use struct info indirection (that was from when we used callbacks?) (5) Close memory leak in run-debug.c Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Imported from CCAN commit 0e5d0e30b30bb07b6605843e5ff224210d8083d8)
101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
#define CCAN_LIKELY_DEBUG 1
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#include <ccan/likely/likely.c>
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#include <ccan/likely/likely.h>
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#include <ccan/tap/tap.h>
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#include <stdlib.h>
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static bool one_seems_likely(unsigned int val)
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{
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if (likely(val == 1))
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return true;
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return false;
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}
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static bool one_seems_unlikely(unsigned int val)
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{
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if (unlikely(val == 1))
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return true;
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return false;
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}
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static bool likely_one_unlikely_two(unsigned int val1, unsigned int val2)
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{
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/* Same line, check we don't get confused! */
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if (likely(val1 == 1) && unlikely(val2 == 2))
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return true;
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return false;
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}
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int main(int argc, char *argv[])
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{
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char *bad;
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plan_tests(14);
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/* Correct guesses. */
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one_seems_likely(1);
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ok1(likely_stats(0, 90) == NULL);
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one_seems_unlikely(2);
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ok1(likely_stats(0, 90) == NULL);
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/* Incorrect guesses. */
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one_seems_likely(0);
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one_seems_likely(2);
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/* Hasn't been hit 4 times, so this fails */
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ok1(!likely_stats(4, 90));
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bad = likely_stats(3, 90);
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ok(strends(bad, "run-debug.c:9:likely(val == 1) correct 33% (1/3)"),
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"likely_stats returned %s", bad);
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free(bad);
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/* Nothing else above 90% */
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ok1(!likely_stats(0, 90));
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/* This should get everything. */
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bad = likely_stats(0, 100);
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ok(strends(bad, "run-debug.c:16:unlikely(val == 1) correct 100% (1/1)"),
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"likely_stats returned %s", bad);
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free(bad);
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/* Nothing left (table is actually cleared) */
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ok1(!likely_stats(0, 100));
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/* Make sure unlikely works */
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one_seems_unlikely(0);
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one_seems_unlikely(2);
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one_seems_unlikely(1);
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bad = likely_stats(0, 90);
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ok(strends(bad, "run-debug.c:16:unlikely(val == 1) correct 66% (2/3)"),
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"likely_stats returned %s", bad);
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free(bad);
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ok1(!likely_stats(0, 100));
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likely_one_unlikely_two(1, 1);
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likely_one_unlikely_two(1, 1);
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likely_one_unlikely_two(1, 1);
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ok1(!likely_stats(0, 90));
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likely_one_unlikely_two(1, 2);
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bad = likely_stats(0, 90);
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ok(strends(bad, "run-debug.c:24:unlikely(val2 == 2) correct 75% (3/4)"),
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"likely_stats returned %s", bad);
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free(bad);
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bad = likely_stats(0, 100);
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ok(strends(bad, "run-debug.c:24:likely(val1 == 1) correct 100% (4/4)"),
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"likely_stats returned %s", bad);
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free(bad);
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ok1(!likely_stats(0, 100));
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/* Check that reset works! */
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one_seems_unlikely(0);
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one_seems_unlikely(2);
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one_seems_unlikely(1);
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likely_stats_reset();
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ok1(!likely_stats(0, 100));
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exit(exit_status());
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}
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