1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "port/port_android.h"
#include <cstdlib>
extern "C" {
size_t fread_unlocked(void *a, size_t b, size_t c, FILE *d) {
return fread(a, b, c, d);
}
size_t fwrite_unlocked(const void *a, size_t b, size_t c, FILE *d) {
return fwrite(a, b, c, d);
}
int fflush_unlocked(FILE *f) {
return fflush(f);
}
int fdatasync(int fd) {
return fsync(fd);
}
}
namespace leveldb {
namespace port {
static void PthreadCall(const char* label, int result) {
if (result != 0) {
fprintf(stderr, "pthread %s: %s\n", label, strerror(result));
abort();
}
}
Mutex::Mutex() { PthreadCall("init mutex", pthread_mutex_init(&mu_, NULL)); }
Mutex::~Mutex() { PthreadCall("destroy mutex", pthread_mutex_destroy(&mu_)); }
void Mutex::Lock() { PthreadCall("lock", pthread_mutex_lock(&mu_)); }
void Mutex::Unlock() { PthreadCall("unlock", pthread_mutex_unlock(&mu_)); }
CondVar::CondVar(Mutex* mu)
: mu_(mu) {
PthreadCall("init cv", pthread_cond_init(&cv_, NULL));
}
CondVar::~CondVar() {
PthreadCall("destroy cv", pthread_cond_destroy(&cv_));
}
void CondVar::Wait() {
PthreadCall("wait", pthread_cond_wait(&cv_, &mu_->mu_));
}
void CondVar::Signal(){
PthreadCall("signal", pthread_cond_signal(&cv_));
}
void CondVar::SignalAll() {
PthreadCall("broadcast", pthread_cond_broadcast(&cv_));
}
} // namespace port
} // namespace leveldb
|
