本文整理汇总了C++中socket::Ptr::Read方法的典型用法代码示例。如果您正苦于以下问题：C++ Ptr::Read方法的具体用法？C++ Ptr::Read怎么用？C++ Ptr::Read使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类socket::Ptr的用法示例。
在下文中一共展示了Ptr::Read方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: CommandPipeThread
void ExternalCommandListener::CommandPipeThread(const String& commandPath)
{
Utility::SetThreadName("Command Pipe");
struct stat statbuf;
bool fifo_ok = false;
if (lstat(commandPath.CStr(), &statbuf) >= 0) {
if (S_ISFIFO(statbuf.st_mode) && access(commandPath.CStr(), R_OK) >= 0) {
fifo_ok = true;
} else {
if (unlink(commandPath.CStr()) < 0) {
BOOST_THROW_EXCEPTION(posix_error()
<< boost::errinfo_api_function("unlink")
<< boost::errinfo_errno(errno)
<< boost::errinfo_file_name(commandPath));
}
}
}
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP;
if (!fifo_ok && mkfifo(commandPath.CStr(), S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP) < 0) {
Log(LogCritical, "ExternalCommandListener")
<< "mkfifo() for fifo path '" << commandPath << "' failed with error code " << errno << ", \"" << Utility::FormatErrorNumber(errno) << "\"";
return;
}
/* mkfifo() uses umask to mask off some bits, which means we need to chmod() the
* fifo to get the right mask. */
if (chmod(commandPath.CStr(), mode) < 0) {
Log(LogCritical, "ExternalCommandListener")
<< "chmod() on fifo '" << commandPath << "' failed with error code " << errno << ", \"" << Utility::FormatErrorNumber(errno) << "\"";
return;
}
for (;;) {
int fd = open(commandPath.CStr(), O_RDWR | O_NONBLOCK);
if (fd < 0) {
Log(LogCritical, "ExternalCommandListener")
<< "open() for fifo path '" << commandPath << "' failed with error code " << errno << ", \"" << Utility::FormatErrorNumber(errno) << "\"";
return;
}
FIFO::Ptr fifo = new FIFO();
Socket::Ptr sock = new Socket(fd);
StreamReadContext src;
for (;;) {
sock->Poll(true, false);
char buffer[8192];
size_t rc;
try {
rc = sock->Read(buffer, sizeof(buffer));
} catch (const std::exception& ex) {
/* We have read all data. */
if (errno == EAGAIN)
continue;
Log(LogWarning, "ExternalCommandListener")
<< "Cannot read from command pipe." << DiagnosticInformation(ex);
break;
}
/* Empty pipe (EOF) */
if (rc == 0)
continue;
fifo->Write(buffer, rc);
for (;;) {
String command;
StreamReadStatus srs = fifo->ReadLine(&command, src);
if (srs != StatusNewItem)
break;
try {
Log(LogInformation, "ExternalCommandListener")
<< "Executing external command: " << command;
ExternalCommandProcessor::Execute(command);
} catch (const std::exception& ex) {
Log(LogWarning, "ExternalCommandListener")
<< "External command failed: " << DiagnosticInformation(ex, false);
Log(LogNotice, "ExternalCommandListener")
<< "External command failed: " << DiagnosticInformation(ex, true);
}
}
}
}
}