Get rid of system_export.h, etc.

mojo/public/c/system/data_pipe.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file contains types/constants and functions specific to data pipes.
 //
 // Note: This header should be compilable as C.
 
 #ifndef MOJO_PUBLIC_C_SYSTEM_DATA_PIPE_H_
 #define MOJO_PUBLIC_C_SYSTEM_DATA_PIPE_H_
 
 #include "mojo/public/c/system/macros.h"
-#include "mojo/public/c/system/system_export.h"
 #include "mojo/public/c/system/types.h"
 
 // |MojoCreateDataPipeOptions|: Used to specify creation parameters for a data
 // pipe to |MojoCreateDataPipe()|.
 //   |uint32_t struct_size|: Set to the size of the |MojoCreateDataPipeOptions|
 //       struct. (Used to allow for future extensions.)
 //   |MojoCreateDataPipeOptionsFlags flags|: Used to specify different modes of
 //       operation.
 //     |MOJO_CREATE_DATA_PIPE_OPTIONS_FLAG_NONE|: No flags; default mode.
 //   |uint32_t element_num_bytes|: The size of an element, in bytes. All
@@ skipping 94 matching lines @@
 // consumer. (On failure, they are not modified.)
 //
 // Returns:
 //   |MOJO_RESULT_OK| on success.
 //   |MOJO_RESULT_INVALID_ARGUMENT| if some argument was invalid (e.g.,
 //       |*options| is invalid).
 //   |MOJO_RESULT_RESOURCE_EXHAUSTED| if a process/system/quota/etc. limit has
 //       been reached (e.g., if the requested capacity was too large, or if the
 //       maximum number of handles was exceeded).
 //   |MOJO_RESULT_UNIMPLEMENTED| if an unsupported flag was set in |*options|.
-MOJO_SYSTEM_EXPORT MojoResult MojoCreateDataPipe(
+MojoResult MojoCreateDataPipe(
     const struct MojoCreateDataPipeOptions* options,  // Optional.
     MojoHandle* data_pipe_producer_handle,            // Out.
     MojoHandle* data_pipe_consumer_handle);           // Out.
 
 // Writes the given data to the data pipe producer given by
 // |data_pipe_producer_handle|. |elements| points to data of size |*num_bytes|;
 // |*num_bytes| should be a multiple of the data pipe's element size. If
 // |MOJO_WRITE_DATA_FLAG_ALL_OR_NONE| is set in |flags|, either all the data
 // will be written or none is.
 //
@@ skipping 12 matching lines @@
 //       |MOJO_WRITE_DATA_FLAG_ALL_OR_NONE| set and the required amount of data
 //       (specified by |*num_bytes|) could not be written.
 //   |MOJO_RESULT_BUSY| if there is a two-phase write ongoing with
 //       |data_pipe_producer_handle| (i.e., |MojoBeginWriteData()| has been
 //       called, but not yet the matching |MojoEndWriteData()|).
 //   |MOJO_RESULT_SHOULD_WAIT| if no data can currently be written (and the
 //       consumer is still open) and |flags| does *not* have
 //       |MOJO_WRITE_DATA_FLAG_ALL_OR_NONE| set.
 //
 // TODO(vtl): Should there be a way of querying how much data can be written?
-MOJO_SYSTEM_EXPORT MojoResult
-MojoWriteData(MojoHandle data_pipe_producer_handle,
-              const void* elements,
-              uint32_t* num_bytes,  // In/out.
-              MojoWriteDataFlags flags);
+MojoResult MojoWriteData(MojoHandle data_pipe_producer_handle,
+                         const void* elements,
+                         uint32_t* num_bytes,  // In/out.
+                         MojoWriteDataFlags flags);
 
 // Begins a two-phase write to the data pipe producer given by
 // |data_pipe_producer_handle|. On success, |*buffer| will be a pointer to which
 // the caller can write |*buffer_num_bytes| bytes of data. There are currently
 // no flags allowed, so |flags| should be |MOJO_WRITE_DATA_FLAG_NONE|.
 //
 // During a two-phase write, |data_pipe_producer_handle| is *not* writable.
 // E.g., if another thread tries to write to it, it will get |MOJO_RESULT_BUSY|;
 // that thread can then wait for |data_pipe_producer_handle| to become writable
 // again.
 //
 // When |MojoBeginWriteData()| returns |MOJO_RESULT_OK|, and the caller has
 // finished writing data to |*buffer|, it should call |MojoEndWriteData()| to
 // specify the amount written and to complete the two-phase write.
 // |MojoEndWriteData()| need not be called for other return values.
 //
 // Returns:
 //   |MOJO_RESULT_OK| on success.
 //   |MOJO_RESULT_INVALID_ARGUMENT| if some argument was invalid (e.g.,
 //       |data_pipe_producer_handle| is not a handle to a data pipe producer or
 //       flags has |MOJO_WRITE_DATA_FLAG_ALL_OR_NONE| set).
 //   |MOJO_RESULT_FAILED_PRECONDITION| if the data pipe consumer handle has been
 //       closed.
 //   |MOJO_RESULT_BUSY| if there is already a two-phase write ongoing with
 //       |data_pipe_producer_handle| (i.e., |MojoBeginWriteData()| has been
 //       called, but not yet the matching |MojoEndWriteData()|).
 //   |MOJO_RESULT_SHOULD_WAIT| if no data can currently be written (and the
 //       consumer is still open).
-MOJO_SYSTEM_EXPORT MojoResult
-MojoBeginWriteData(MojoHandle data_pipe_producer_handle,
-                   void** buffer,               // Out.
-                   uint32_t* buffer_num_bytes,  // Out.
-                   MojoWriteDataFlags flags);
+MojoResult MojoBeginWriteData(MojoHandle data_pipe_producer_handle,
+                              void** buffer,               // Out.
+                              uint32_t* buffer_num_bytes,  // Out.
+                              MojoWriteDataFlags flags);
 
 // Ends a two-phase write to the data pipe producer given by
 // |data_pipe_producer_handle| that was begun by a call to
 // |MojoBeginWriteData()| on the same handle. |num_bytes_written| should
 // indicate the amount of data actually written; it must be less than or equal
 // to the value of |*buffer_num_bytes| output by |MojoBeginWriteData()| and must
 // be a multiple of the element size. The buffer given by |*buffer| from
 // |MojoBeginWriteData()| must have been filled with exactly |num_bytes_written|
 // bytes of data.
 //
 // On failure, the two-phase write (if any) is ended (so the handle may become
 // writable again, if there's space available) but no data written to |*buffer|
 // is "put into" the data pipe.
 //
 // Returns:
 //   |MOJO_RESULT_OK| on success.
 //   |MOJO_RESULT_INVALID_ARGUMENT| if some argument was invalid (e.g.,
 //       |data_pipe_producer_handle| is not a handle to a data pipe producer or
 //       |num_bytes_written| is invalid (greater than the maximum value provided
 //       by |MojoBeginWriteData()| or not a multiple of the element size).
 //   |MOJO_RESULT_FAILED_PRECONDITION| if the data pipe producer is not in a
 //       two-phase write (e.g., |MojoBeginWriteData()| was not called or
 //       |MojoEndWriteData()| has already been called).
-MOJO_SYSTEM_EXPORT MojoResult
-MojoEndWriteData(MojoHandle data_pipe_producer_handle,
-                 uint32_t num_bytes_written);
+MojoResult MojoEndWriteData(MojoHandle data_pipe_producer_handle,
+                            uint32_t num_bytes_written);
 
 // Reads data from the data pipe consumer given by |data_pipe_consumer_handle|.
 // May also be used to discard data or query the amount of data available.
 //
 // If |flags| has neither |MOJO_READ_DATA_FLAG_DISCARD| nor
 // |MOJO_READ_DATA_FLAG_QUERY| set, this tries to read up to |*num_bytes| (which
 // must be a multiple of the data pipe's element size) bytes of data to
 // |elements| and set |*num_bytes| to the amount actually read. If flags has
 // |MOJO_READ_DATA_FLAG_ALL_OR_NONE| set, it will either read exactly
 // |*num_bytes| bytes of data or none. Additionally, if flags has
@@ skipping 25 matching lines @@
 //       be read or discarded.
 //   |MOJO_RESULT_OUT_OF_RANGE| if |flags| has |MOJO_READ_DATA_FLAG_ALL_OR_NONE|
 //       set and the required amount of data is not available to be read or
 //       discarded (and the producer is still open).
 //   |MOJO_RESULT_BUSY| if there is a two-phase read ongoing with
 //       |data_pipe_consumer_handle| (i.e., |MojoBeginReadData()| has been
 //       called, but not yet the matching |MojoEndReadData()|).
 //   |MOJO_RESULT_SHOULD_WAIT| if there is no data to be read or discarded (and
 //       the producer is still open) and |flags| does *not* have
 //       |MOJO_READ_DATA_FLAG_ALL_OR_NONE| set.
-MOJO_SYSTEM_EXPORT MojoResult MojoReadData(MojoHandle data_pipe_consumer_handle,
-                                           void* elements,       // Out.
-                                           uint32_t* num_bytes,  // In/out.
-                                           MojoReadDataFlags flags);
+MojoResult MojoReadData(MojoHandle data_pipe_consumer_handle,
+                        void* elements,       // Out.
+                        uint32_t* num_bytes,  // In/out.
+                        MojoReadDataFlags flags);
 
 // Begins a two-phase read from the data pipe consumer given by
 // |data_pipe_consumer_handle|. On success, |*buffer| will be a pointer from
 // which the caller can read |*buffer_num_bytes| bytes of data. There are
 // currently no valid flags, so |flags| must be |MOJO_READ_DATA_FLAG_NONE|.
 //
 // During a two-phase read, |data_pipe_consumer_handle| is *not* readable.
 // E.g., if another thread tries to read from it, it will get
 // |MOJO_RESULT_BUSY|; that thread can then wait for |data_pipe_consumer_handle|
 // to become readable again.
 //
 // Once the caller has finished reading data from |*buffer|, it should call
 // |MojoEndReadData()| to specify the amount read and to complete the two-phase
 // read.
 //
 // Returns:
 //   |MOJO_RESULT_OK| on success.
 //   |MOJO_RESULT_INVALID_ARGUMENT| if some argument was invalid (e.g.,
 //       |data_pipe_consumer_handle| is not a handle to a data pipe consumer,
 //       or |flags| has invalid flags set).
 //   |MOJO_RESULT_FAILED_PRECONDITION| if the data pipe producer handle has been
 //       closed.
 //   |MOJO_RESULT_BUSY| if there is already a two-phase read ongoing with
 //       |data_pipe_consumer_handle| (i.e., |MojoBeginReadData()| has been
 //       called, but not yet the matching |MojoEndReadData()|).
 //   |MOJO_RESULT_SHOULD_WAIT| if no data can currently be read (and the
 //       producer is still open).
-MOJO_SYSTEM_EXPORT MojoResult
-MojoBeginReadData(MojoHandle data_pipe_consumer_handle,
-                  const void** buffer,         // Out.
-                  uint32_t* buffer_num_bytes,  // Out.
-                  MojoReadDataFlags flags);
+MojoResult MojoBeginReadData(MojoHandle data_pipe_consumer_handle,
+                             const void** buffer,         // Out.
+                             uint32_t* buffer_num_bytes,  // Out.
+                             MojoReadDataFlags flags);
 
 // Ends a two-phase read from the data pipe consumer given by
 // |data_pipe_consumer_handle| that was begun by a call to |MojoBeginReadData()|
 // on the same handle. |num_bytes_read| should indicate the amount of data
 // actually read; it must be less than or equal to the value of
 // |*buffer_num_bytes| output by |MojoBeginReadData()| and must be a multiple of
 // the element size.
 //
 // On failure, the two-phase read (if any) is ended (so the handle may become
 // readable again) but no data is "removed" from the data pipe.
 //
 // Returns:
 //   |MOJO_RESULT_OK| on success.
 //   |MOJO_RESULT_INVALID_ARGUMENT| if some argument was invalid (e.g.,
 //       |data_pipe_consumer_handle| is not a handle to a data pipe consumer or
 //       |num_bytes_written| is greater than the maximum value provided by
 //       |MojoBeginReadData()| or not a multiple of the element size).
 //   |MOJO_RESULT_FAILED_PRECONDITION| if the data pipe consumer is not in a
 //       two-phase read (e.g., |MojoBeginReadData()| was not called or
 //       |MojoEndReadData()| has already been called).
-MOJO_SYSTEM_EXPORT MojoResult
-MojoEndReadData(MojoHandle data_pipe_consumer_handle, uint32_t num_bytes_read);
+MojoResult MojoEndReadData(MojoHandle data_pipe_consumer_handle,
+                           uint32_t num_bytes_read);
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // MOJO_PUBLIC_C_SYSTEM_DATA_PIPE_H_