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authorgdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2010-02-27 08:40:21 +0000
committergdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2010-02-27 08:40:21 +0000
commit411e6a635117a17986c22d98176e80c6921f70a6 (patch)
treebed70236d6343db2298b04b3bc570e7cb2ba5f74 /os/kernel/include/channels.h
parent01f258f5e20e34a04a491ce9cab64a5bb48b4b7b (diff)
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Diffstat (limited to 'os/kernel/include/channels.h')
-rw-r--r--os/kernel/include/channels.h269
1 files changed, 0 insertions, 269 deletions
diff --git a/os/kernel/include/channels.h b/os/kernel/include/channels.h
deleted file mode 100644
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--- a/os/kernel/include/channels.h
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file channels.h
- * @brief I/O channels.
- * @details This header defines abstract interfaces useful to access generic
- * I/O resources in a standardized way.
- *
- * @addtogroup io_channels
- * @{
- */
-
-#ifndef _CHANNELS_H_
-#define _CHANNELS_H_
-
-/**
- * @brief @p BaseChannel specific methods.
- */
-#define _base_channel_methods \
- _base_sequental_stream_methods \
- /* Channel output check.*/ \
- bool_t (*putwouldblock)(void *instance); \
- /* Channel input check.*/ \
- bool_t (*getwouldblock)(void *instance); \
- /* Channel put method with timeout specification.*/ \
- msg_t (*put)(void *instance, uint8_t b, systime_t time); \
- /* Channel get method with timeout specification.*/ \
- msg_t (*get)(void *instance, systime_t time); \
- /* Channel write method with timeout specification.*/ \
- size_t (*writet)(void *instance, const uint8_t *bp, \
- size_t n, systime_t time); \
- /* Channel read method with timeout specification.*/ \
- size_t (*readt)(void *instance, uint8_t *bp, size_t n, systime_t time);
-
-/**
- * @brief @p BaseChannel specific data.
- * @note It is empty because @p BaseChannel is only an interface without
- * implementation.
- */
-#define _base_channel_data \
- _base_sequental_stream_data
-
-/**
- * @brief @p BaseChannel virtual methods table.
- */
-struct BaseChannelVMT { \
- _base_channel_methods \
-};
-
-/**
- * @extends BaseSequentialStream
- *
- * @brief Base channel class.
- * @details This class represents a generic, byte-wide, I/O channel. This class
- * introduces generic I/O primitives with timeout specification.
- */
-typedef struct {
- /** @brief Virtual Methods Table.*/
- const struct BaseChannelVMT *vmt;
- _base_channel_data
-} BaseChannel;
-
-/**
- * @brief Channel output check.
- * @details This function verifies if a subsequent put/write operation would
- * block.
- *
- * @param[in] ip pointer to a @p BaseChannel or derived class
- * @return The output queue status:
- * @retval FALSE if the output queue has space and would not block a
- * write operation.
- * @retval TRUE if the output queue is full and would block a write
- * operation.
- */
-#define chIOPutWouldBlock(ip) ((ip)->vmt->putwouldblock(ip))
-
-/**
- * @brief Channel input check.
- * @details This function verifies if a subsequent get/read operation would
- * block.
- *
- * @param[in] ip pointer to a @p BaseChannel or derived class
- * @return The input queue status:
- * @retval FALSE if the input queue contains data and would not block a
- * read operation.
- * @retval TRUE if the input queue is empty and would block a read
- * operation.
- */
-#define chIOGetWouldBlock(ip) ((ip)->vmt->getwouldblock(ip))
-
-/**
- * @brief Channel blocking byte write.
- * @details This function writes a byte value to a channel. If the channel
- * is not ready to accept data then the calling thread is suspended.
- *
- * @param[in] ip pointer to a @p BaseChannel or derived class
- * @param[in] b the byte value to be written to the channel
- * @return The operation status:
- * @retval Q_OK if the operation succeeded.
- * @retval Q_RESET if the channel associated queue (if any) was reset.
- */
-#define chIOPut(ip, b) ((ip)->vmt->put(ip, b, TIME_INFINITE))
-
-/**
- * @brief Channel blocking byte write with timeout.
- * @details This function writes a byte value to a channel. If the channel
- * is not ready to accept data then the calling thread is suspended.
- *
- * @param[in] ip pointer to a @p BaseChannel or derived class
- * @param[in] b the byte value to be written to the channel
- * @param[in] time the number of ticks before the operation timeouts,
- * the following special values are allowed:
- * - @a TIME_IMMEDIATE immediate timeout.
- * - @a TIME_INFINITE no timeout.
- * .
- * @return The operation status:
- * @retval Q_OK if the operation succeeded.
- * @retval Q_TIMEOUT if the specified time expired.
- * @retval Q_RESET if the channel associated queue (if any) was reset.
- */
-#define chIOPutTimeout(ip, b, time) ((ip)->vmt->put(ip, b, time))
-
-/**
- * @brief Channel blocking byte read.
- * @details This function reads a byte value from a channel. If the data
- * is not available then the calling thread is suspended.
- *
- * @param[in] ip pointer to a @p BaseChannel or derived class
- * @return A byte value from the queue or:
- * @retval Q_RESET if the channel associated queue (if any) was reset.
- */
-#define chIOGet(ip) ((ip)->vmt->get(ip, TIME_INFINITE))
-
-/**
- * @brief Channel blocking byte read with timeout.
- * @details This function reads a byte value from a channel. If the data
- * is not available then the calling thread is suspended.
- *
- * @param[in] ip pointer to a @p BaseChannel or derived class
- * @param[in] time the number of ticks before the operation timeouts,
- * the following special values are allowed:
- * - @a TIME_IMMEDIATE immediate timeout.
- * - @a TIME_INFINITE no timeout.
- * .
- * @return A byte value from the queue or:
- * @retval Q_TIMEOUT if the specified time expired.
- * @retval Q_RESET if the channel associated queue (if any) was reset.
- */
-#define chIOGetTimeout(ip, time) ((ip)->vmt->get(ip, time))
-
-/**
- * @brief Channel blocking write with timeout.
- * @details The function writes data from a buffer to a channel. If the channel
- * is not ready to accept data then the calling thread is suspended.
- *
- * @param[in] ip pointer to a @p BaseChannel or derived class
- * @param[out] bp pointer to the data buffer
- * @param[in] n the maximum amount of data to be transferred
- * @param[in] time the number of ticks before the operation timeouts,
- * the following special values are allowed:
- * - @a TIME_IMMEDIATE immediate timeout.
- * - @a TIME_INFINITE no timeout.
- * .
- * @return The number of bytes transferred.
- */
-#define chIOWriteTimeout(ip, bp, n, time) \
- ((ip)->vmt->write(ip, bp, n, time))
-
-/**
- * @brief Channel blocking read with timeout.
- * @details The function reads data from a channel into a buffer. If the data
- * is not available then the calling thread is suspended.
- *
- * @param[in] ip pointer to a @p BaseChannel or derived class
- * @param[in] bp pointer to the data buffer
- * @param[in] n the maximum amount of data to be transferred
- * @param[in] time the number of ticks before the operation timeouts,
- * the following special values are allowed:
- * - @a TIME_IMMEDIATE immediate timeout.
- * - @a TIME_INFINITE no timeout.
- * .
- * @return The number of bytes transferred.
- */
-#define chIOReadTimeout(ip, bp, n, time) \
- ((ip)->vmt->read(ip, bp, n, time))
-
-#if CH_USE_EVENTS
-/**
- * @brief @p BaseAsynchronousChannel specific methods.
- */
-#define _base_asynchronous_channel_methods \
- _base_channel_methods
-
-/**
- * @brief @p BaseAsynchronousChannel specific data.
- */
-#define _base_asynchronous_channel_data \
- _base_channel_data \
- /* Data Available EventSource.*/ \
- EventSource ievent; \
- /* Data Transmitted EventSource.*/ \
- EventSource oevent;
-
-/**
- * @brief @p BaseAsynchronousChannel virtual methods table.
- */
-struct BaseAsynchronousChannelVMT {
- _base_asynchronous_channel_methods
-};
-
-/**
- * @extends BaseChannel
- *
- * @brief Base asynchronous channel class.
- * @details This class extends @p BaseChannel by adding event sources fields
- * for asynchronous I/O for use in an event-driven environment.
- */
-typedef struct {
- /** @brief Virtual Methods Table.*/
- const struct BaseAsynchronousChannelVMT *vmt;
- _base_asynchronous_channel_data
-} BaseAsynchronousChannel;
-
-/**
- * @brief Returns the write event source.
- * @details The write event source is broadcasted when the channel is ready
- * for write operations. This usually happens when the internal
- * output queue becomes empty.
- *
- * @param[in] ip pointer to a @p BaseAsynchronousChannel or derived
- * class
- * @return A pointer to an @p EventSource object.
- */
-#define chIOGetWriteEventSource(ip) (&((ip)->vmt->oevent))
-
-/**
- * @brief Returns the read event source.
- * @details The read event source is broadcasted when the channel is ready
- * for read operations. This usually happens when the internal
- * input queue becomes non-empty.
- *
- * @param[in] ip pointer to a @p BaseAsynchronousChannel or derived
- * class
- * @return A pointer to an @p EventSource object.
- */
-#define chIOGetReadEventSource(ip) (&((ip)->vmt->ievent))
-
-#endif /* CH_USE_EVENTS */
-
-#endif /* _CHANNELS_H_ */
-
-/** @} */