forked from OSchip/llvm-project
118 lines
3.0 KiB
Plaintext
118 lines
3.0 KiB
Plaintext
// RUN: %clang_tsan %s -o %t -framework Foundation
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// RUN: %run %t 2>&1 | FileCheck %s
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#import <Foundation/Foundation.h>
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dispatch_queue_t queue;
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dispatch_data_t data;
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dispatch_semaphore_t sem;
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const char *path;
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long my_global = 0;
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void test_dispatch_io_write() {
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dispatch_io_t channel = dispatch_io_create_with_path(DISPATCH_IO_STREAM, path, O_CREAT | O_WRONLY, 0666, queue, ^(int error) { });
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if (! channel) abort();
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dispatch_io_set_high_water(channel, 1);
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my_global++;
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dispatch_io_write(channel, 0, data, queue, ^(bool done, dispatch_data_t remainingData, int error) {
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if (error) abort();
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my_global++;
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dispatch_async(queue, ^{
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my_global++;
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if (done) {
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dispatch_semaphore_signal(sem);
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}
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});
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});
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dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
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my_global++;
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dispatch_io_close(channel, 0);
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}
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void test_dispatch_write() {
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dispatch_fd_t fd = open(path, O_CREAT | O_WRONLY, 0666);
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if (fd == -1) abort();
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my_global++;
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dispatch_write(fd, data, queue, ^(dispatch_data_t data, int error) {
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if (error) abort();
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my_global++;
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dispatch_async(queue, ^{
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my_global++;
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dispatch_semaphore_signal(sem);
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});
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});
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dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
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my_global++;
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close(fd);
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}
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void test_dispatch_io_read() {
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dispatch_io_t channel = dispatch_io_create_with_path(DISPATCH_IO_STREAM, path, O_RDONLY,
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0, queue, ^(int error) { });
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dispatch_io_set_high_water(channel, 1);
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my_global++;
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dispatch_io_read(channel, 0, SIZE_MAX, queue, ^(bool done, dispatch_data_t remainingData, int error) {
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if (error) abort();
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my_global++;
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dispatch_async(queue, ^{
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my_global++;
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if (done) {
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dispatch_semaphore_signal(sem);
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}
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});
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});
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dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
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my_global++;
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dispatch_io_close(channel, 0);
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}
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void test_dispatch_read() {
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dispatch_fd_t fd = open(path, O_RDONLY, 0);
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if (fd == -1) abort();
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my_global++;
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dispatch_read(fd, SIZE_MAX, queue, ^(dispatch_data_t data, int error) {
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if (error) abort();
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my_global++;
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dispatch_async(queue, ^{
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my_global++;
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dispatch_semaphore_signal(sem);
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});
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});
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dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
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my_global++;
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close(fd);
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}
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int main(int argc, const char *argv[]) {
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fprintf(stderr, "Hello world.\n");
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queue = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL);
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sem = dispatch_semaphore_create(0);
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NSString *ns_path = [NSTemporaryDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"temp-gcd-io.%d", getpid()]];
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path = ns_path.fileSystemRepresentation;
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NSData *ns_data = [NSMutableData dataWithLength:1000];
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data = dispatch_data_create(ns_data.bytes, ns_data.length, NULL, DISPATCH_DATA_DESTRUCTOR_DEFAULT);
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test_dispatch_io_write();
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test_dispatch_write();
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test_dispatch_io_read();
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test_dispatch_read();
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fprintf(stderr, "Done.\n");
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return 0;
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}
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// CHECK: Hello world.
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// CHECK-NOT: WARNING: ThreadSanitizer
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// CHECK: Done.
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