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757587cb21
Summary: There was a subtle, but pretty important difference between the Slice and regular versions of this function. The Slice function was zero-initializing the rest of the buffer when the read syscall returned less bytes than expected, while the regular function did not. This patch removes the inconsistency by making both functions *not* zero-initialize the buffer. The zeroing code is moved to the MemoryBuffer class, which is currently the only user of this code. This makes the API more consistent, and the code shorter. While in there, I also refactor the functions to return the number of bytes through the regular return value (via Expected<size_t>) instead of a separate by-ref argument. Reviewers: aganea, rnk Subscribers: kristina, Bigcheese, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D66471 llvm-svn: 369627 |
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| .. | ||
| COM.inc | ||
| DynamicLibrary.inc | ||
| Host.inc | ||
| Memory.inc | ||
| Path.inc | ||
| Process.inc | ||
| Program.inc | ||
| README.txt | ||
| Signals.inc | ||
| Threading.inc | ||
| ThreadLocal.inc | ||
| Unix.h | ||
| Watchdog.inc | ||
llvm/lib/Support/Unix README =========================== This directory provides implementations of the lib/System classes that are common to two or more variants of UNIX. For example, the directory structure underneath this directory could look like this: Unix - only code that is truly generic to all UNIX platforms Posix - code that is specific to Posix variants of UNIX SUS - code that is specific to the Single Unix Specification SysV - code that is specific to System V variants of UNIX As a rule, only those directories actually needing to be created should be created. Also, further subdirectories could be created to reflect versions of the various standards. For example, under SUS there could be v1, v2, and v3 subdirectories to reflect the three major versions of SUS.