This commit is contained in:
Михаил Капелько
2024-03-19 22:26:27 +03:00
commit 4e09f4e980
255 changed files with 20618 additions and 0 deletions

View File

@@ -0,0 +1,31 @@
HASHDIR = ../../src
PROGS = test1 test2
# Thread support requires compiler-specific options
# ----------------------------------------------------------------------------
# GNU
CFLAGS += -I$(HASHDIR) -g -pthread
# Solaris (Studio 11)
#CFLAGS = -I$(HASHDIR) -g -mt
# ----------------------------------------------------------------------------
ifeq ($(HASH_DEBUG),1)
CFLAGS += -DHASH_DEBUG=1
endif
all: $(PROGS) run_tests
$(PROGS) : $(HASHDIR)/uthash.h
$(CC) $(CPPLFAGS) $(CFLAGS) $(LDFLAGS) -o $@ $(@).c
debug:
$(MAKE) all HASH_DEBUG=1
run_tests: $(PROGS)
perl ../do_tests
.PHONY: clean
clean:
rm -f $(PROGS) test*.out
rm -rf test*.dSYM

View File

@@ -0,0 +1,2 @@
test1: exercise a two-reader, one-writer, rwlock-protected hash.
test2: a template for a nthread, nloop kind of program

View File

@@ -0,0 +1,22 @@
#!/usr/bin/perl
use strict;
use warnings;
my @tests;
for (glob "test*[0-9]") {
push @tests, $_ if -e "$_.ans";
}
my $num_failed=0;
for my $test (@tests) {
`./$test > $test.out 2> $test.err`;
`diff $test.out $test.ans`;
print "$test failed\n" if $?;
$num_failed++ if $?;
unlink "$test.err" if -z "$test.err";
}
print scalar @tests . " tests conducted, $num_failed failed.\n";
exit $num_failed;

View File

@@ -0,0 +1,116 @@
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <pthread.h>
#include "uthash.h"
#undef uthash_noexpand_fyi
#define uthash_noexpand_fyi(tbl) fprintf(stderr,"warning: bucket expansion inhibited\n")
#define LOOPS 100000
typedef struct {
int i;
UT_hash_handle hh;
} elt;
elt *elts=NULL; /* this is our hash table which two threads will use */
pthread_rwlock_t lock;
void *thread_routine_r( void *arg ) {
int i;
long num_found=0;
elt *e;
for(i=0;i<LOOPS;i++) {
if (pthread_rwlock_rdlock(&lock) != 0) {
fprintf(stderr,"can't acquire read lock\n");
exit(-1);
}
HASH_FIND_INT(elts, &i, e);
if (e) num_found++;
pthread_rwlock_unlock(&lock);
}
return (void*)num_found;
}
void *thread_routine_w( void *arg ) {
int i;
long num_deld=0;
elt *e;
for(i=0;i<LOOPS;i++) {
if (pthread_rwlock_wrlock(&lock) != 0) {
fprintf(stderr,"can't acquire write lock\n");
exit(-1);
}
HASH_FIND_INT(elts, &i, e);
if (e) {
/* HASH_DEL(elts, e); */
/* num_deld++; */
} else {
e = malloc(sizeof(elt));
if (!e) exit(-1);
e->i = i;
HASH_ADD_INT(elts, i, e);
}
pthread_rwlock_unlock(&lock);
}
return (void*)num_deld;
}
int main() {
unsigned i;
long num_added=0;
int status;
pthread_t thread_r1,thread_r2,thread_w1,thread_w2;
void *thread_result;
elt tmp, *e;
if (pthread_rwlock_init(&lock,NULL) != 0) {
fprintf(stderr,"lock init failed\n");
exit(-1);
}
if (( status = pthread_create( &thread_r1, NULL, thread_routine_r, NULL) )) {
printf("failure: status %d\n", status);
exit(-1);
}
if (( status = pthread_create( &thread_r2, NULL, thread_routine_r, NULL) )) {
printf("failure: status %d\n", status);
exit(-1);
}
if (( status = pthread_create( &thread_w1, NULL, thread_routine_w, NULL) )) {
printf("failure: status %d\n", status);
exit(-1);
}
if (( status = pthread_create( &thread_w2, NULL, thread_routine_w, NULL) )) {
printf("failure: status %d\n", status);
exit(-1);
}
status = pthread_join( thread_r1, &thread_result );
printf("thread result: %d %ld\n", status, (long)thread_result);
status = pthread_join( thread_r2, &thread_result );
printf("thread result: %d %ld\n", status, (long)thread_result);
status = pthread_join( thread_w1, &thread_result );
printf("thread result: %d %ld\n", status, (long)thread_result);
status = pthread_join( thread_w2, &thread_result );
printf("thread result: %d %ld\n", status, (long)thread_result);
i = HASH_COUNT(elts);
printf("final count of items in hash: %u\n", i);
if (pthread_rwlock_destroy(&lock) != 0) {
fprintf(stderr,"lock destroy failed\n");
exit(-1);
}
}

View File

@@ -0,0 +1,75 @@
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <pthread.h>
#include "uthash.h"
#undef uthash_noexpand_fyi
#define uthash_noexpand_fyi(tbl) fprintf(stderr,"warning: bucket expansion inhibited\n");
#define LOOPS 100000
#define NTHREADS 2
typedef struct {
int i;
int v;
UT_hash_handle hh;
} elt;
elt *elts=NULL; /* this is our hash table which two threads will use */
pthread_rwlock_t lock;
void *thread_routine( void *arg ) {
int keepgoing=0;
/* TODO write me */
return NULL;
}
int main() {
unsigned i;
long num_added=0;
int status;
pthread_t thread[NTHREADS];
void *thread_result;
elt tmp, *e;
if (pthread_rwlock_init(&lock,NULL) != 0) {
fprintf(stderr,"lock init failed\n");
exit(-1);
}
/* populate it to start */
for(i=0; i<LOOPS; i++) {
e = malloc(sizeof(elt));
if (!e) exit(-1);
e->i = i;
e->v = 0;
HASH_ADD_INT(elts, i, e);
}
for(i=0; i<NTHREADS; i++) {
if (( status = pthread_create( &thread[i], NULL, thread_routine, NULL) )) {
printf("failure: status %d\n", status);
exit(-1);
}
}
for(i=0; i<NTHREADS; i++) {
status = pthread_join( thread[i], &thread_result );
printf("thread result: %d %ld\n", status, (long)thread_result);
}
i = HASH_COUNT(elts);
printf("final count of items in hash: %u\n", i);
if (pthread_rwlock_destroy(&lock) != 0) {
fprintf(stderr,"lock destroy failed\n");
exit(-1);
}
}