fc12c0b8bc
Implement/test/fix the opt.prof_thread_active_init, prof.thread_active_init, and thread.prof.active mallctl's. Test/fix the thread.prof.name mallctl. Refactor opt_prof_active to be read-only and move mutable state into the prof_active variable. Stop leaning on ctl-related locking for protection.
137 lines
3.6 KiB
C
137 lines
3.6 KiB
C
#include "test/jemalloc_test.h"
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#ifdef JEMALLOC_PROF
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const char *malloc_conf =
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"prof:true,prof_thread_active_init:false,lg_prof_sample:0,prof_final:false";
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#endif
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static void
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mallctl_bool_get(const char *name, bool expected, const char *func, int line)
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{
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bool old;
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size_t sz;
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sz = sizeof(old);
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assert_d_eq(mallctl(name, &old, &sz, NULL, 0), 0,
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"%s():%d: Unexpected mallctl failure reading %s", func, line, name);
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assert_b_eq(old, expected, "%s():%d: Unexpected %s value", func, line,
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name);
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}
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static void
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mallctl_bool_set(const char *name, bool old_expected, bool val_new,
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const char *func, int line)
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{
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bool old;
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size_t sz;
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sz = sizeof(old);
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assert_d_eq(mallctl(name, &old, &sz, &val_new, sizeof(val_new)), 0,
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"%s():%d: Unexpected mallctl failure reading/writing %s", func,
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line, name);
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assert_b_eq(old, old_expected, "%s():%d: Unexpected %s value", func,
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line, name);
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}
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static void
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mallctl_prof_active_get_impl(bool prof_active_old_expected, const char *func,
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int line)
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{
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mallctl_bool_get("prof.active", prof_active_old_expected, func, line);
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}
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#define mallctl_prof_active_get(a) \
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mallctl_prof_active_get_impl(a, __func__, __LINE__)
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static void
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mallctl_prof_active_set_impl(bool prof_active_old_expected,
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bool prof_active_new, const char *func, int line)
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{
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mallctl_bool_set("prof.active", prof_active_old_expected,
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prof_active_new, func, line);
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}
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#define mallctl_prof_active_set(a, b) \
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mallctl_prof_active_set_impl(a, b, __func__, __LINE__)
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static void
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mallctl_thread_prof_active_get_impl(bool thread_prof_active_old_expected,
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const char *func, int line)
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{
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mallctl_bool_get("thread.prof.active", thread_prof_active_old_expected,
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func, line);
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}
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#define mallctl_thread_prof_active_get(a) \
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mallctl_thread_prof_active_get_impl(a, __func__, __LINE__)
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static void
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mallctl_thread_prof_active_set_impl(bool thread_prof_active_old_expected,
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bool thread_prof_active_new, const char *func, int line)
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{
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mallctl_bool_set("thread.prof.active", thread_prof_active_old_expected,
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thread_prof_active_new, func, line);
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}
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#define mallctl_thread_prof_active_set(a, b) \
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mallctl_thread_prof_active_set_impl(a, b, __func__, __LINE__)
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static void
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prof_sampling_probe_impl(bool expect_sample, const char *func, int line)
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{
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void *p;
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size_t expected_backtraces = expect_sample ? 1 : 0;
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assert_zu_eq(prof_bt_count(), 0, "%s():%d: Expected 0 backtraces", func,
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line);
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p = mallocx(1, 0);
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assert_ptr_not_null(p, "Unexpected mallocx() failure");
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assert_zu_eq(prof_bt_count(), expected_backtraces,
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"%s():%d: Unexpected backtrace count", func, line);
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dallocx(p, 0);
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}
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#define prof_sampling_probe(a) \
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prof_sampling_probe_impl(a, __func__, __LINE__)
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TEST_BEGIN(test_prof_active)
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{
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test_skip_if(!config_prof);
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mallctl_prof_active_get(true);
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mallctl_thread_prof_active_get(false);
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mallctl_prof_active_set(true, true);
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mallctl_thread_prof_active_set(false, false);
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/* prof.active, !thread.prof.active. */
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prof_sampling_probe(false);
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mallctl_prof_active_set(true, false);
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mallctl_thread_prof_active_set(false, false);
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/* !prof.active, !thread.prof.active. */
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prof_sampling_probe(false);
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mallctl_prof_active_set(false, false);
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mallctl_thread_prof_active_set(false, true);
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/* !prof.active, thread.prof.active. */
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prof_sampling_probe(false);
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mallctl_prof_active_set(false, true);
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mallctl_thread_prof_active_set(true, true);
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/* prof.active, thread.prof.active. */
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prof_sampling_probe(true);
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/* Restore settings. */
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mallctl_prof_active_set(true, true);
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mallctl_thread_prof_active_set(true, false);
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}
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TEST_END
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int
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main(void)
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{
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return (test(
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test_prof_active));
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}
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