Kenji Arai / mbed-dev4BLE

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Diff: platform/FileHandle.h

Revision:
180:96ed750bd169
Parent:
178:79309dc6340a
--- a/platform/FileHandle.h	Thu Dec 07 14:01:42 2017 +0000
+++ b/platform/FileHandle.h	Wed Jan 17 15:23:54 2018 +0000
@@ -51,7 +51,7 @@
      *  Devices acting as FileHandles should follow POSIX semantics:
      *
      *  * if no data is available, and non-blocking set return -EAGAIN
-     *  * if no data is available, and blocking set, wait until data is available
+     *  * if no data is available, and blocking set, wait until some data is available
      *  * If any data is available, call returns immediately
      *
      *  @param buffer   The buffer to read in to
@@ -62,6 +62,12 @@
 
     /** Write the contents of a buffer to a file
      *
+     *  Devices acting as FileHandles should follow POSIX semantics:
+     *
+     * * if blocking, block until all data is written
+     * * if no data can be written, and non-blocking set, return -EAGAIN
+     * * if some data can be written, and non-blocking set, write partial
+     *
      *  @param buffer   The buffer to write from
      *  @param size     The number of bytes to write 
      *  @return         The number of bytes written, negative error on failure