summaryrefslogtreecommitdiff
path: root/src/include
diff options
context:
space:
mode:
authorJannis M. Hoffmann <jannis@fehcom.de>2023-10-10 22:58:21 +0200
committerJannis M. Hoffmann <jannis@fehcom.de>2023-10-10 22:58:21 +0200
commit2b4d7de34d173279fd8f09a25699d861c2b057ca (patch)
tree0d6606d6e2a2cb78ec85777d07661985e4a05d8d /src/include
parent7d4cbf31c0b30a29aa82dd6bcedc3d3cf7e7a811 (diff)
adjust comments in iodevice.h
Diffstat (limited to 'src/include')
-rw-r--r--src/include/iodevice.h439
1 files changed, 214 insertions, 225 deletions
diff --git a/src/include/iodevice.h b/src/include/iodevice.h
index 8b1314e..3e3330d 100644
--- a/src/include/iodevice.h
+++ b/src/include/iodevice.h
@@ -1,8 +1,8 @@
/**
- * @file iodevice.h
- * @brief Declaration of the IODevice class.
- * @author Andreas Aardal Hanssen
- * @date 2002, 2003
+ * @file iodevice.h
+ * @brief Declaration of the IODevice class.
+ * @author Andreas Aardal Hanssen
+ * @date 2002, 2003
*/
#ifndef iodevice_h_included
@@ -17,24 +17,22 @@
const char CMS_END_OF_LINE[4] = {0x0d, '\n', 0x00, 0x00};
namespace Binc {
- /*!
- \class IODevice
- \brief The IODevice class provides a framework for reading and
- writing to device.
- Implement new devices by inheriting this class and overloading all
- virtual methods.
-
- service() returns the service that the specific device is used
- for. Two values are "log" and "client".
-
- \sa IOFactory, MultilogDevice, SyslogDevice, StdIODevice, SSLDevice
- */
+ /**
+ * @class IODevice
+ * @brief The IODevice class provides a framework for reading and writing to device.
+ *
+ * Implement new devices by inheriting this class and overloading all
+ * virtual methods.
+ *
+ * service() returns the service that the specific device is used
+ * for. Two values are "log" and "client".
+ *
+ * @sa IOFactory, MultilogDevice, SyslogDevice, StdIODevice, SSLDevice
+ */
class IODevice {
public:
- /*!
- Standard options for an IODevice.
- */
+ /// Standard options for an IODevice.
enum Flags {
None = 0,
FlushesOnEndl = 1 << 0,
@@ -44,196 +42,190 @@ namespace Binc {
HasTimeout = 1 << 4
};
- /*!
- Errors from when an operation returned false.
- */
+ /// Errors from when an operation returned false.
enum Error { Unknown, Timeout };
- /*!
- Constructs an invalid IODevice.
-
- Instances of IODevice perform no operations, and all boolean
- functions always return false. This constructor is only useful
- if called from a subclass that reimplements all virtual methods.
- */
+ /**
+ * Constructs an invalid IODevice.
+ *
+ * Instances of IODevice perform no operations, and all boolean
+ * functions always return false. This constructor is only useful
+ * if called from a subclass that reimplements all virtual methods.
+ */
IODevice(int f = 0);
- /*!
- Destructs an IODevice; does nothing.
- */
+ /// Destructs an IODevice; does nothing.
virtual ~IODevice();
- /*!
- Clears all data in the input and output buffers.
- */
+ /// Clears all data in the input and output buffers.
void clear();
- /*!
- Sets one or more flags.
- \param f A bitwise OR of flags from the Flags enum.
- */
+ /**
+ * Sets one or more flags.
+ * @param f A bitwise OR of flags from the Flags enum.
+ */
void setFlags(unsigned int f);
/*!
- Clears one or more flags.
- \param f A bitwise OR of flags from the Flags enum.
- */
+ * Clears one or more flags.
+ * @param f A bitwise OR of flags from the Flags enum.
+ */
void clearFlags(unsigned int f);
- /*!
- Sets the maximum allowed input buffer size. If this size is
- non-zero and exceeded, reading from the device will fail. This
- functionality is used to prevent clients from forcing this class
- to consume so much memory that the program crashes.
-
- Setting the max input buffer size to 0 disables the input size
- limit.
-
- \param max The maximum input buffer size in bytes.
- */
+ /**
+ * Sets the maximum allowed input buffer size. If this size is
+ * non-zero and exceeded, reading from the device will fail. This
+ * functionality is used to prevent clients from forcing this class
+ * to consume so much memory that the program crashes.
+ *
+ * Setting the max input buffer size to 0 disables the input size
+ * limit.
+ *
+ * @param max The maximum input buffer size in bytes.
+ */
void setMaxInputBufferSize(unsigned int max);
- /*!
- Sets the maximum allowed output buffer size. If this size is
- non-zero and exceeded, flush() is called implicitly.
-
- Setting the max output buffer size to 0 disables the output size
- limit. This is generally discouraged.
-
- As a contrast to setMaxInputBufferSize(), this function is used
- to bundle up consequent write calls, allowing more efficient use
- of the underlying device as larger blocks of data are written at
- a time.
-
- \param max The maximum output buffer size in bytes.
- */
+ /**
+ * Sets the maximum allowed output buffer size. If this size is
+ * non-zero and exceeded, flush() is called implicitly.
+ *
+ * Setting the max output buffer size to 0 disables the output size
+ * limit. This is generally discouraged.
+ *
+ * As a contrast to setMaxInputBufferSize(), this function is used
+ * to bundle up consequent write calls, allowing more efficient use
+ * of the underlying device as larger blocks of data are written at
+ * a time.
+ *
+ * @param max The maximum output buffer size in bytes.
+ */
void setMaxOutputBufferSize(unsigned int max);
- /*!
- Sets the device's internal timeout in seconds. This timeout is
- used both when waiting for data to read and for waiting for the
- ability to write.
-
- If this timeout is exceeded, the read or write function that
- triggered the timeout will fail.
-
- Setting the timeout to 0 disables the timeout.
-
- \param t The timeout in seconds.
- \sa getTimeout()
- */
+ /**
+ * Sets the device's internal timeout in seconds. This timeout is
+ * used both when waiting for data to read and for waiting for the
+ * ability to write.
+ *
+ * If this timeout is exceeded, the read or write function that
+ * triggered the timeout will fail.
+ *
+ * Setting the timeout to 0 disables the timeout.
+ *
+ * @param t The timeout in seconds.
+ * @sa getTimeout()
+ */
void setTimeout(unsigned int t);
- /*!
- Returns the timeout in seconds, or 0 if there is no timeout.
-
- \sa setTimeout()
- */
+ /**
+ * Returns the timeout in seconds, or 0 if there is no timeout.
+ *
+ * @sa setTimeout()
+ */
unsigned int getTimeout() const;
enum LogLevel { ErrorLevel, InfoLevel, WarningLevel, DebugLevel };
- /*!
- Sets the output level for the following write operations on this
- device.
-
- The output level is a number which gives the following write
- operations a priority. You can use setOutputLevelLimit() to
- filter the write operations valid for different operating modes.
- This enables you to have certain write operations ignored.
-
- For instance, if the output level is set to 0, then "Hello" is
- written, and the output level is set to 1, followed by writing
- "Daisy", the output level limit value will decide whether only
- "Hello" is written, or if also "Daisy" is written.
-
- A low value of the level gives higher priority, and a high level
- will give low priority. The default value is 0, and write
- operations that are done with output level 0 are never ignored.
-
- \param level The output level
- \sa getOutputLevel(), setOutputLevelLimit()
- */
+ /**
+ * Sets the output level for the following write operations on this
+ * device.
+ *
+ * The output level is a number which gives the following write
+ * operations a priority. You can use setOutputLevelLimit() to
+ * filter the write operations valid for different operating modes.
+ * This enables you to have certain write operations ignored.
+ *
+ * For instance, if the output level is set to 0, then "Hello" is
+ * written, and the output level is set to 1, followed by writing
+ * "Daisy", the output level limit value will decide whether only
+ * "Hello" is written, or if also "Daisy" is written.
+ *
+ * A low value of the level gives higher priority, and a high level
+ * will give low priority. The default value is 0, and write
+ * operations that are done with output level 0 are never ignored.
+ *
+ * @param level The output level
+ * @sa getOutputLevel(), setOutputLevelLimit()
+ */
void setOutputLevel(LogLevel level);
- /*!
- Returns the current output level.
-
- \sa setOutputLevel()
- */
+ /**
+ * Returns the current output level.
+ *
+ * @sa setOutputLevel()
+ */
LogLevel getOutputLevel() const;
- /*!
- Sets the current output level limit. Write operations with a
- level higher than the output level limit are ignored.
-
- \param level The output level limit
- \sa setOutputLevel()
- */
+ /**
+ * Sets the current output level limit. Write operations with a
+ * level higher than the output level limit are ignored.
+ *
+ * @param level The output level limit
+ * @sa setOutputLevel()
+ */
void setOutputLevelLimit(LogLevel level);
- /*!
- Returns the current output level limit.
-
- \sa setOutputLevelLimit()
- */
+ /**
+ * Returns the current output level limit.
+ *
+ * @sa setOutputLevelLimit()
+ */
LogLevel getOutputLevelLimit() const;
- /*!
- Returns the number of bytes that have been read from this device
- since it was created.
- */
+ /**
+ * Returns the number of bytes that have been read from this device
+ * since it was created.
+ */
unsigned int getReadCount() const;
- /*!
- Returns the number of bytes that have been written to this
- device since it was created.
- */
+ /**
+ * Returns the number of bytes that have been written to this
+ * device since it was created.
+ */
unsigned int getWriteCount() const;
- /*!
- Calling this function enables the built-in protocol dumping feature in
- the device. All input and output to this device will be dumped to a file
- in /tmp.
- */
+ /**
+ * Calling this function enables the built-in protocol dumping feature in
+ * the device. All input and output to this device will be dumped to a file
+ * in /tmp.
+ */
void enableProtocolDumping();
- /*!
- Writes data to the device. Depending on the value of the max
- output buffer size, the data may not be written immediately.
-
- \sa setMaxOutputBufferSize()
- */
+ /**
+ * Writes data to the device. Depending on the value of the max
+ * output buffer size, the data may not be written immediately.
+ *
+ * @sa setMaxOutputBufferSize()
+ */
template<class T> IODevice &operator<<(const T &source);
- /*!
- Writes data to the device. This function specializes on standard
- ostream derivates, such as std::endl.
+ /**
+ * Writes data to the device. This function specializes on standard
+ * ostream derivatives, such as std::endl.
*/
IODevice &operator<<(std::ostream &(*source)(std::ostream &));
- /*!
- Returns true if data can be read from the device; otherwise
- returns false.
- */
+ /**
+ * Returns true if data can be read from the device; otherwise
+ * returns false.
+ */
virtual bool canRead() const;
- /*!
- Reads data from the device, and stores this in a string. Returns
- true on success; otherwise returns false.
-
- \param dest The incoming data is stored in this string.
- \param max No more than this number of bytes is read from the
- device.
- */
+ /**
+ * Reads data from the device, and stores this in a string. Returns
+ * true on success; otherwise returns false.
+ *
+ * @param dest The incoming data is stored in this string.
+ * @param max No more than this number of bytes is read from the
+ * device.
+ */
bool readStr(std::string *dest, unsigned int max = 0);
- /*!
- Reads exactly one byte from the device and stores this in a
- char. Returns true on success; otherwise returns false.
-
- \param dest The incoming byte is stored in this char.
- */
+ /**
+ * Reads exactly one byte from the device and stores this in a
+ * char. Returns true on success; otherwise returns false.
+ *
+ * @param dest The incoming byte is stored in this char.
+ */
bool readChar(char *dest = nullptr);
/*!
@@ -246,98 +238,95 @@ namespace Binc {
*/
void unreadStr(const std::string &s);
- /*!
- Reads characters from the device, until and including one
- certain character is found. All read characters are discarded.
-
- This function can be used to skip to the beginning of a line,
- with the terminating character being '\n'.
-
- \param The certain character.
- */
+ /**
+ * Reads characters from the device, until and including one
+ * certain character is found. All read characters are discarded.
+ *
+ * This function can be used to skip to the beginning of a line,
+ * with the terminating character being '\n'.
+ *
+ * @param The certain character.
+ */
bool skipTo(char c);
- /*!
- Flushes the output buffer. Writes all data in the output buffer
- to the device.
- */
+ /**
+ * Flushes the output buffer. Writes all data in the output buffer
+ * to the device.
+ */
bool flush();
- /*!
- Returns the type of error that most recently occurred.
- */
+ /**
+ * Returns the type of error that most recently occurred.
+ */
Error getLastError() const;
- /*!
- Returns a human readable description of the error that most
- recently occurred. If no known error has occurred, this method
- returns "Unknown error".
- */
+ /**
+ * Returns a human readable description of the error that most
+ * recently occurred. If no known error has occurred, this method
+ * returns "Unknown error".
+ */
std::string getLastErrorString() const;
- /*!
- Returns the type of service provided by this device. Two valid
- return values are "client" and "log".
- */
+ /**
+ * Returns the type of service provided by this device. Two valid
+ * return values are "client" and "log".
+ */
virtual std::string service() const;
protected:
- /*!
- Waits until data can be written to the device. If the timeout is
- 0, this function waits indefinitely. Otherwise, it waits until
- the timeout has expired.
-
- If this function returns true, data can be written to the
- device; otherwise, getLastError() must be checked to determine
- whether a timeout occurred or whether an error with the device
- prevents further writing.
- */
+ /**
+ * Waits until data can be written to the device. If the timeout is
+ * 0, this function waits indefinitely. Otherwise, it waits until
+ * the timeout has expired.
+ *
+ * If this function returns true, data can be written to the
+ * device; otherwise, getLastError() must be checked to determine
+ * whether a timeout occurred or whether an error with the device
+ * prevents further writing.
+ */
virtual bool waitForWrite() const;
- /*!
- Waits until data can be read from the device.
-
- \sa waitForWrite()
- */
+ /**
+ * Waits until data can be read from the device.
+ *
+ * \sa waitForWrite()
+ */
virtual bool waitForRead() const;
- /*!
- Types of results from a write.
- */
+ /// Types of results from a write.
enum WriteResult { WriteWait = 0, WriteDone = 1 << 0, WriteError = 1 << 1 };
- /*!
- Writes as much data as possible to the device. If some but not
- all data was written, returns WriteWait. If all data was
- written, returns WriteDone. If an error occurred, returns
- WriteError.
- */
+ /**
+ * Writes as much data as possible to the device. If some but not
+ * all data was written, returns WriteWait. If all data was
+ * written, returns WriteDone. If an error occurred, returns
+ * WriteError.
+ */
virtual WriteResult write();
- /*!
- Reads data from the device, and stores it in the input buffer.
- Returns true on success; otherwise returns false.
-
- This method will fail if there is no more data available, if a
- timeout occurred or if an error with the device prevents more
- data from being read.
-
- The number of bytes read from the device is undefined.
- */
+ /**
+ * Reads data from the device, and stores it in the input buffer.
+ * Returns true on success; otherwise returns false.
+ *
+ * This method will fail if there is no more data available, if a
+ * timeout occurred or if an error with the device prevents more
+ * data from being read.
+ *
+ * The number of bytes read from the device is undefined.
+ */
virtual bool fillInputBuffer();
BincStream inputBuffer;
BincStream outputBuffer;
- protected:
unsigned int flags;
unsigned int maxInputBufferSize;
unsigned int maxOutputBufferSize;
unsigned int timeout;
- unsigned int readCount;
- unsigned int writeCount;
+ size_t readCount;
+ size_t writeCount;
LogLevel outputLevel;
LogLevel outputLevelLimit;