CommIO.h
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1/*
2 * Copyright (C) 1996-2022 The Squid Software Foundation and contributors
3 *
4 * Squid software is distributed under GPLv2+ license and includes
5 * contributions from numerous individuals and organizations.
6 * Please see the COPYING and CONTRIBUTORS files for details.
7 */
8
9#ifndef SQUID_SRC_DISKIO_DISKTHREADS_COMMIO_H
10#define SQUID_SRC_DISKIO_DISKTHREADS_COMMIO_H
11
12#include "fatal.h"
13#include "fde.h"
14#include "globals.h"
15
16class CommIO
17{
18
19public:
20 static inline void NotifyIOCompleted();
21 static void ResetNotifications();
22 static void Initialize();
23 static void NotifyIOClose();
24
25private:
26 static void NULLFDHandler(int, void *);
27 static void FlushPipe();
28 static bool Initialized;
29 static bool DoneSignalled;
30 static int DoneFD;
31 static int DoneReadFD;
32};
33
34/* Inline code. TODO: make structured approach to inlining */
35void
37{
38 if (!Initialized) {
39 fatalf("Disk Threads I/O pipes not initialized before first use.");
40 }
41
42 if (!DoneSignalled) {
43 DoneSignalled = true;
44 FD_WRITE_METHOD(DoneFD, "!", 1);
45 }
46};
47
48#endif /* SQUID_SRC_DISKIO_DISKTHREADS_COMMIO_H */
49
Definition: CommIO.h:17
static bool DoneSignalled
Definition: CommIO.h:29
static void NotifyIOCompleted()
Definition: CommIO.h:36
static void NotifyIOClose()
Definition: CommIO.cc:38
static void ResetNotifications()
Definition: CommIO.cc:69
static bool Initialized
Definition: CommIO.h:28
static int DoneReadFD
Definition: CommIO.h:31
static void Initialize()
Definition: CommIO.cc:19
static int DoneFD
Definition: CommIO.h:30
static void FlushPipe()
Definition: CommIO.cc:55
static void NULLFDHandler(int, void *)
Definition: CommIO.cc:62
void fatalf(const char *fmt,...)
Definition: fatal.cc:68
int FD_WRITE_METHOD(int fd, const char *buf, int len)
Definition: fde.h:200

 

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