f5b95db4c3
# Why? In real-time programming, you often have a process or dispatch loop that is called many, many, many times. Without de-duplication the user will be drowning in errors. Introduce a way to only print the stacks one time only, if they have been seen before
40 lines
938 B
C++
40 lines
938 B
C++
// RUN: %clangxx -fsanitize=realtime %s -o %t
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// RUN: env RTSAN_OPTIONS="halt_on_error=false,print_stats_on_exit=true" %run %t 2>&1 | FileCheck %s
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// UNSUPPORTED: ios
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// Intent: Ensure all errors are deduplicated.
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#include <unistd.h>
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const int kNumViolations = 10;
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void violation() [[clang::nonblocking]] {
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for (int i = 0; i < kNumViolations; i++)
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usleep(1);
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}
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void violation2() [[clang::nonblocking]] {
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for (int i = 0; i < kNumViolations; i++)
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violation();
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}
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void double_violation() [[clang::nonblocking]] {
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violation();
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violation2();
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}
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int main() {
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violation(); // 1 unique errors here, but 10 total
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violation2(); // 1 unique errors here, but 100 total
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double_violation(); // 2 unique errors here, but 110 total
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return 0;
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}
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// CHECK-COUNT-4: ==ERROR:
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// CHECK-NOT: ==ERROR:
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// CHECK: RealtimeSanitizer exit stats:
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// CHECK-NEXT: Total error count: 220
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// CHECK-NEXT: Unique error count: 4
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