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Commit | Line | Data |
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10cefb7b | 1 | /* |
10cefb7b | 2 | * DEBUG: section 54 Interprocess Communication |
3 | * | |
4 | */ | |
5 | ||
f7f3304a | 6 | #include "squid.h" |
10cefb7b | 7 | #include "comm.h" |
1bac0258 | 8 | #include "CommCalls.h" |
8942ceb3 | 9 | #include "comm/Connection.h" |
ec41b64c | 10 | #include "comm/Write.h" |
a67d2b2e | 11 | #include "base/TextException.h" |
10cefb7b | 12 | #include "ipc/UdsOp.h" |
13 | ||
ba568924 | 14 | Ipc::UdsOp::UdsOp(const String& pathAddr): |
5667a628 AR |
15 | AsyncJob("Ipc::UdsOp"), |
16 | address(PathToAddress(pathAddr)), | |
e0d28505 | 17 | options(COMM_NONBLOCKING) |
10cefb7b | 18 | { |
ba568924 | 19 | debugs(54, 5, HERE << '[' << this << "] pathAddr=" << pathAddr); |
10cefb7b | 20 | } |
21 | ||
22 | Ipc::UdsOp::~UdsOp() | |
23 | { | |
24 | debugs(54, 5, HERE << '[' << this << ']'); | |
e0d28505 AJ |
25 | if (Comm::IsConnOpen(conn_)) |
26 | conn_->close(); | |
27 | conn_ = NULL; | |
10cefb7b | 28 | } |
29 | ||
ba568924 | 30 | void Ipc::UdsOp::setOptions(int newOptions) |
10cefb7b | 31 | { |
ba568924 | 32 | options = newOptions; |
10cefb7b | 33 | } |
34 | ||
e0d28505 AJ |
35 | Comm::ConnectionPointer & |
36 | Ipc::UdsOp::conn() | |
10cefb7b | 37 | { |
e0d28505 | 38 | if (!Comm::IsConnOpen(conn_)) { |
ba568924 | 39 | if (options & COMM_DOBIND) |
1bac0258 | 40 | unlink(address.sun_path); |
e0d28505 AJ |
41 | if (conn_ == NULL) |
42 | conn_ = new Comm::Connection; | |
43 | conn_->fd = comm_open_uds(SOCK_DGRAM, 0, &address, options); | |
44 | Must(Comm::IsConnOpen(conn_)); | |
10cefb7b | 45 | } |
e0d28505 | 46 | return conn_; |
10cefb7b | 47 | } |
48 | ||
ba568924 | 49 | void Ipc::UdsOp::setTimeout(int seconds, const char *handlerName) |
10cefb7b | 50 | { |
4299f876 | 51 | typedef CommCbMemFunT<UdsOp, CommTimeoutCbParams> Dialer; |
ba568924 | 52 | AsyncCall::Pointer handler = asyncCall(54,5, handlerName, |
4299f876 | 53 | Dialer(CbcPointer<UdsOp>(this), &UdsOp::noteTimeout)); |
8d77a37c | 54 | commSetConnTimeout(conn(), seconds, handler); |
ba568924 AR |
55 | } |
56 | ||
57 | void Ipc::UdsOp::clearTimeout() | |
58 | { | |
8d77a37c | 59 | commUnsetConnTimeout(conn()); |
ba568924 AR |
60 | } |
61 | ||
62 | void Ipc::UdsOp::noteTimeout(const CommTimeoutCbParams &) | |
63 | { | |
64 | timedout(); // our kid handles communication timeout | |
10cefb7b | 65 | } |
66 | ||
1bac0258 | 67 | struct sockaddr_un |
5667a628 | 68 | Ipc::PathToAddress(const String& pathAddr) { |
1bac0258 AR |
69 | assert(pathAddr.size() != 0); |
70 | struct sockaddr_un unixAddr; | |
71 | memset(&unixAddr, 0, sizeof(unixAddr)); | |
72 | unixAddr.sun_family = AF_LOCAL; | |
73 | xstrncpy(unixAddr.sun_path, pathAddr.termedBuf(), sizeof(unixAddr.sun_path)); | |
74 | return unixAddr; | |
75 | } | |
76 | ||
10cefb7b | 77 | CBDATA_NAMESPACED_CLASS_INIT(Ipc, UdsSender); |
78 | ||
1bac0258 | 79 | Ipc::UdsSender::UdsSender(const String& pathAddr, const TypedMsgHdr& aMessage): |
5667a628 AR |
80 | UdsOp(pathAddr), |
81 | message(aMessage), | |
82 | retries(10), // TODO: make configurable? | |
83 | timeout(10), // TODO: make configurable? | |
84 | writing(false) | |
10cefb7b | 85 | { |
1bac0258 | 86 | message.address(address); |
10cefb7b | 87 | } |
88 | ||
89 | void Ipc::UdsSender::start() | |
90 | { | |
ba568924 | 91 | UdsOp::start(); |
10cefb7b | 92 | write(); |
93 | if (timeout > 0) | |
ba568924 | 94 | setTimeout(timeout, "Ipc::UdsSender::noteTimeout"); |
10cefb7b | 95 | } |
96 | ||
ba568924 | 97 | bool Ipc::UdsSender::doneAll() const |
10cefb7b | 98 | { |
ba568924 | 99 | return !writing && UdsOp::doneAll(); |
10cefb7b | 100 | } |
101 | ||
102 | void Ipc::UdsSender::write() | |
103 | { | |
104 | debugs(54, 5, HERE); | |
4299f876 AR |
105 | typedef CommCbMemFunT<UdsSender, CommIoCbParams> Dialer; |
106 | AsyncCall::Pointer writeHandler = JobCallback(54, 5, | |
4cb2536f | 107 | Dialer, this, UdsSender::wrote); |
b0388924 | 108 | Comm::Write(conn(), message.raw(), message.size(), writeHandler, NULL); |
ba568924 | 109 | writing = true; |
10cefb7b | 110 | } |
111 | ||
ba568924 | 112 | void Ipc::UdsSender::wrote(const CommIoCbParams& params) |
10cefb7b | 113 | { |
8bbb16e3 | 114 | debugs(54, 5, HERE << params.conn << " flag " << params.flag << " retries " << retries << " [" << this << ']'); |
ba568924 | 115 | writing = false; |
1bac0258 AR |
116 | if (params.flag != COMM_OK && retries-- > 0) { |
117 | sleep(1); // do not spend all tries at once; XXX: use an async timed event instead of blocking here; store the time when we started writing so that we do not sleep if not needed? | |
e0d28505 | 118 | write(); // XXX: should we close on error so that conn() reopens? |
1bac0258 | 119 | } |
10cefb7b | 120 | } |
121 | ||
ba568924 | 122 | void Ipc::UdsSender::timedout() |
10cefb7b | 123 | { |
124 | debugs(54, 5, HERE); | |
ba568924 | 125 | mustStop("timedout"); |
10cefb7b | 126 | } |
127 | ||
1bac0258 | 128 | void Ipc::SendMessage(const String& toAddress, const TypedMsgHdr &message) |
10cefb7b | 129 | { |
4299f876 | 130 | AsyncJob::Start(new UdsSender(toAddress, message)); |
10cefb7b | 131 | } |
51ea0904 | 132 | |
1b76e6c1 AJ |
133 | const Comm::ConnectionPointer & |
134 | Ipc::ImportFdIntoComm(const Comm::ConnectionPointer &conn, int socktype, int protocol, Ipc::FdNoteId noteId) | |
51ea0904 CT |
135 | { |
136 | struct sockaddr_in addr; | |
137 | socklen_t len = sizeof(addr); | |
1b76e6c1 AJ |
138 | if (getsockname(conn->fd, reinterpret_cast<sockaddr*>(&addr), &len) == 0) { |
139 | conn->remote = addr; | |
51ea0904 | 140 | struct addrinfo* addr_info = NULL; |
1b76e6c1 | 141 | conn->remote.GetAddrInfo(addr_info); |
51ea0904 CT |
142 | addr_info->ai_socktype = socktype; |
143 | addr_info->ai_protocol = protocol; | |
1b76e6c1 AJ |
144 | comm_import_opened(conn, Ipc::FdNote(noteId), addr_info); |
145 | conn->remote.FreeAddrInfo(addr_info); | |
51ea0904 | 146 | } else { |
1b76e6c1 AJ |
147 | debugs(54, DBG_CRITICAL, "ERROR: Ipc::ImportFdIntoComm: " << conn << ' ' << xstrerror()); |
148 | conn->close(); | |
51ea0904 | 149 | } |
1b76e6c1 | 150 | return conn; |
51ea0904 | 151 | } |