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Clean up more code

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The *NSYNC linked list API is good enough that it deserves to be part of
the C libray, so this change writes an improved version of it which uses
that offsetof() trick from the Linux Kernel. We vendor all of the *NSYNC
tests in third_party which helped confirm the needed refactoring is safe

This change also deletes more old code that didn't pan out. My goal here
is to work towards a vision where the Cosmopolitan core libraries become
less experimental and more focused on curation. This better reflects the
current level of quality we've managed to achieve.
This commit is contained in:
Justine Tunney 2023-07-06 06:57:28 -07:00
parent 88612a2cd7
commit 0a24b4fc3c
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GPG key ID: BE714B4575D6E328
268 changed files with 632 additions and 8688 deletions
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18
third_party/nsync/testing/mu_test.c vendored
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@ -15,11 +15,11 @@
│ See the License for the specific language governing permissions and │
│ limitations under the License. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "third_party/nsync/mu.h"
#include "libc/calls/calls.h"
#include "libc/str/str.h"
#include "libc/thread/thread.h"
#include "third_party/nsync/cv.h"
#include "third_party/nsync/mu.h"
#include "third_party/nsync/mu_wait.h"
#include "third_party/nsync/testing/closure.h"
#include "third_party/nsync/testing/smprintf.h"
@ -116,7 +116,7 @@ static void test_mu_nthread (testing t) {
do {
int i;
test_data td;
memset ((void *) &td, 0, sizeof (td));
bzero ((void *) &td, sizeof (td));
td.t = t;
td.n_threads = 5;
td.loop_count = loop_count;
@ -155,7 +155,7 @@ static void test_mutex_nthread (testing t) {
do {
int i;
test_data td;
memset ((void *) &td, 0, sizeof (td));
bzero ((void *) &td, sizeof (td));
td.t = t;
td.n_threads = 5;
td.loop_count = loop_count;
@ -196,7 +196,7 @@ static void test_rwmutex_nthread (testing t) {
do {
int i;
test_data td;
memset ((void *) &td, 0, sizeof (td));
bzero ((void *) &td, sizeof (td));
td.t = t;
td.n_threads = 5;
td.loop_count = loop_count;
@ -249,7 +249,7 @@ static void test_try_mu_nthread (testing t) {
do {
int i;
test_data td;
memset ((void *) &td, 0, sizeof (td));
bzero ((void *) &td, sizeof (td));
td.t = t;
td.n_threads = 5;
td.loop_count = loop_count;
@ -281,7 +281,7 @@ typedef struct counter_s {
/* Return a counter with initial value "initial". */
static counter *counter_new (int initial) {
counter *c = (counter *) malloc (sizeof (*c));
memset ((void *) c, 0, sizeof (*c));
bzero ((void *) c, sizeof (*c));
c->value = initial;
return (c);
}
@ -1023,7 +1023,7 @@ static void contended_state_run_test (contended_state *cs, testing t,
nsync_mu locks, with small critical sections. */
static void benchmark_mu_contended (testing t) {
contended_state cs;
memset ((void *) &cs, 0, sizeof (cs));
bzero ((void *) &cs, sizeof (cs));
contended_state_run_test (&cs, t, &cs.mu, (void (*) (void*))&nsync_mu_lock,
(void (*) (void*))&nsync_mu_unlock);
}
@ -1032,7 +1032,7 @@ static void benchmark_mu_contended (testing t) {
pthread_mutex_t locks, with small critical sections. */
static void benchmark_mutex_contended (testing t) {
contended_state cs;
memset ((void *) &cs, 0, sizeof (cs));
bzero ((void *) &cs, sizeof (cs));
pthread_mutex_init (&cs.mutex, NULL);
contended_state_run_test (&cs, t, &cs.mutex, &void_pthread_mutex_lock,
&void_pthread_mutex_unlock);
@ -1043,7 +1043,7 @@ static void benchmark_mutex_contended (testing t) {
pthread_rwlock_t locks, with small critical sections. */
static void benchmark_wmutex_contended (testing t) {
contended_state cs;
memset ((void *) &cs, 0, sizeof (cs));
bzero ((void *) &cs, sizeof (cs));
pthread_rwlock_init (&cs.rwmutex, NULL);
contended_state_run_test (&cs, t, &cs.rwmutex, &void_pthread_rwlock_wrlock,
&void_pthread_rwlock_unlock);